CN103261501B - For controlling the method and apparatus of jet loom - Google Patents
For controlling the method and apparatus of jet loom Download PDFInfo
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- CN103261501B CN103261501B CN201180057049.5A CN201180057049A CN103261501B CN 103261501 B CN103261501 B CN 103261501B CN 201180057049 A CN201180057049 A CN 201180057049A CN 103261501 B CN103261501 B CN 103261501B
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
- D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
- D03D47/3026—Air supply systems
- D03D47/3033—Controlling the air supply
- D03D47/304—Controlling of the air supply to the auxiliary nozzles
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/34—Handling the weft between bulk storage and weft-inserting means
- D03D47/36—Measuring and cutting the weft
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- Textile Engineering (AREA)
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Abstract
The invention provides a kind of for controlling the method for jet loom (1).Jet loom (1) comprises the multiple pilot jets (33) arranged along fluid supply tube (8).Weft yarn (93) is incorporated in fluid supply tube (8), activate pilot jet (33), so that the fluid pulse that injecting time is staggered, it produces fluid stream in fluid supply tube (8), and weft yarn (93) is carried by the fluid flowing through fluid supply tube (8).Pilot jet (33) activates based on the local distribution of the feature in the weft yarn section (93) of corresponding conveying.Therefore, reduce energy and the air consumption of jet loom (1), and improve the productivity ratio of jet loom (1).
Description
Technical field
The present invention relates to a kind of method and apparatus for controlling jet loom according to the preamble of independent claims.
Background of invention
So-called clearing machine is used in spinning machine or line cylinder coil winding machine for guaranteeing yarn qualities.This device is such as known from EP-0'439'767A2.It comprises and has the gage outfit that at least one scans the sensor of mobile yarn.Normally used Fundamentals of Sensors are capacitive principles (such as, see EP-0'924'513A1) or optical principle (such as, see WO-93/13407A1).
Propose with different sensor scan yarns and combined different sensors signal for evaluating.Such as US-6,798,506B2 instruct layout two sensors, along thread path one after another.First sensor measurement is from the optical reflection of yarn; The quality of second sensor corresponding capacitance ground or optical measurement yarn or diameter.The output signal of two sensors is evaluated according to certain evaluation criterion.Based on this evaluation, distinguish at least two kinds of impurity mutually.
According to US-4,559,976A, Yarn senser is arranged on the Yarn storing unit upstream of loom.When sensor detects yarn flaws, the knit operation of loom is interrupted.The yarn line segment of flaw deflects from its normal channel.WO-2006/133833A1 discloses a kind of similar installation of the Yarn senser on loom.When Yarn senser, to detect in the yarn any uneven, and weft yarn is inserted in shed open with the speed lower than the normal speed for corresponding yarn.Therefore, risk weft yarn being ruptured drops to minimum.Contrary with above-mentioned two open source literatures mentioned, EP-2'175'058A1 discloses a kind of loom, and wherein Yarn senser is arranged between yarn feeder and shed open.The Yarn senser arranged by this way also can detect the yarn flaws only produced in loom.Therefore better quality monitoring is achieved.
US-2008/0185066A1 discloses at least one Yarn senser in jet loom, and it measures speed and/or the overlay path of weft yarn during weft yarn inserts.The measured value of at least one Yarn senser is used in and controls weft yarn insertion.
US-4,450,876Al target is to compensate yarn in jet loom and wraps in the impact of the change on the weft yarn time interval.Checkout equipment detects the change of yarn bag.As the reaction to detection signal, cause the temporary variations of the supply pressure of blow-out nozzle.Supply pressure depends on the yarn of use.
According to US-5,115,840A, the weft yarn often chosen by the angle of arrival detector monitors being arranged in shed open downstream fly yarn feature.On its basis Lookup protocol whiff pressure at least lower limit thus realize that continuous print is stable chooses yarn operation, can not produce and choose yarn defect.
EP-0'573'656A1 proposes a kind of neutral net for controlling jet loom.The signal of weft sensor can be considered in the controlling.
According to WO-89/12122A1, the pilot jet that the mutual front and back activating jet loom continuously in pulse type mode are arranged.The pulse length activated controls based on the air validity of the yarn of respective handling.Yarn is aerial carries the parameter that surface and the ratio of yarn qualities are defined as air validity.Corresponding Yarn senser can be utilized to detect relative yarn parameter, such as thickness of yarn, Yarn filoplume, or yarn qualities.The consideration of the air validity of yarn allowed to process very different yarns in high quality in the continuous operation cycle.
From the known a kind of method and apparatus for controlling loom, such as jet loom of EP-2'157'218A1.Weft yarn from the pull-out of line cylinder, and uses first sensor to detect the qualitative character of the weft yarn of pull-out, such as, in the change of diametrically.By the load variable of the second sensor repeated detection weft yarn during weft yarn inserts, such as, as the speed of the function of time.Based on the speed of load Variable Control loom driver detected, and the result of Detection job feature as weft yarn.Utilize the suitable configurations of control system, the quantity of breakage of weft can be reduced.
According to US-4,463,783A1, utilizes thickness of yarn detector to detect before insertion to be inserted through the thickness of the weft yarn of the bending shed open in jet loom.Be averaged from the signal of telecommunication of thickness of yarn detector supply in the whole length of preparation for the weft yarn inserted.Based on this average thickness control fluid, such as air, expulsion pressure so that be optimized inserting weft.By the Stress control of the thickness of the weft yarn based on preparation insertion, weft yarn is prevented to insert unsuccessfully.
Summary of the invention
One object of the present invention is to provide a kind of method and apparatus for controlling jet loom, utilizes it, reduces energy and the fluid consuming of jet loom, and improves the productivity ratio of jet loom.
These and other objects realize by according to the method for independent claims and jet loom.Advantageous embodiment of the present invention limits in the dependent claims.
The present invention proposes dynamically to control jet loom based in the local distribution of the current feature be conducted through in the weft yarn section of jet loom.For this reason, before it inserts the fluid supply tube of jet loom, detect the local distribution of the feature of each independent weft yarn section.Therefore to the control of each independent weft yarn section Filled function jet loom.Optimize the mean value not only considering to represent weft yarn section, and consider the structure of each independent weft yarn section.In other words, the position distributing to the parameter value measured in weft yarn section is important.
In the method for controlling according to jet loom of the present invention, this jet loom comprises the multiple pilot jets arranged along fluid supply tube, is inserted in fluid supply tube by weft yarn.Activate pilot jet, so that the fluid pulse that injecting time is staggered, it produces fluid stream in fluid supply tube.Weft yarn is carried by the fluid flowing through fluid supply tube.Local distribution based on the feature in the weft yarn section of carrying respectively activates pilot jet.
In a preferred embodiment, the value along at least one yarn parameter of the linear measure longimetry weft yarn of weft yarn before fluid supply tube is being inserted.The yarn parameter value measured distributes to the relevant position on weft yarn.Pilot jet activates based on the yarn parameter value measured in the weft yarn section of corresponding conveying and their positions on described yarn line segment.
In the actuating of nozzle, the integer identical subsegment that the weft yarn section preparing to insert fluid supply tube is preferably molded as by having equal length forms, each subsegment is assigned to certain position on described yarn line segment, and the value of at least one yarn parameter in corresponding subsegment by average.Integer is such as between 1 to 50 and preferably between 20 to 30.
For carrying at least another nozzle of weft yarn section to can be provided in fluid supply tube upstream, and also activate based on the local distribution of the feature in the weft yarn section of corresponding conveying.Pilot jet is preferably combined in many group nozzles and all pilot jets be combined in one group of nozzle correspondingly activated together.
Preferably in the actuating of nozzle, calculate at least one controling parameters, this controling parameters is selected from group below: the initial time that nozzle is opened, the end time that nozzle is opened, the duration section that nozzle is opened, and the fluid pressure in nozzle.Described independent feature can be at least one yarn parameter from group selection below: yarn qualities, yarn diameter, thread density, yam surface structure, Yarn filoplume, thread material.
The measurement of at least one yarn parameter is advantageously produced in storing weft threads unit upstream.Weft yarn is inserted into fluid supply tube from storing weft threads unit.
Preferably produce the actuating of nozzle by this way, even if fluid consuming is minimum.And braiding process should not be interrupted, and weft yarn at the due in of the end of fluid supply tube in preset range.Nozzle can activate based on the additional parameter of yarn of process and/or the parameter of jet loom.
Described fluid is preferably air or water, and jet loom preferably sprays air loom or water jet looms.Particularly advantageously the present invention is used together with electronics opening (electronicshedding).This combination allows braiding process to be adapted to the current independent feature being conducted through the weft yarn section of jet loom even better.
By the yarn flaws detected according to the estimation of predetermined quality standard, position independent feature of being correlated with can be used for estimating the quality of weft yarn.The weft yarn section of not enough quality, at this moment from its regular path deflection, so that it is not inserted in air supply pipe, and/or provides warning when such weft yarn section being detected.Therefore, weaving quality can be improved.
Pilot jet preferably activates based on the local distribution of the independent feature of at least two differences of the weft yarn section of corresponding conveying.
The invention still further relates to a kind of device for controlling jet loom, it comprises the multiple pilot jets arranged along fluid supply tube.Described device comprises control unit, and for activating pilot jet so that the staggered fluid pulse of injecting time, it produces fluid stream in fluid supply tube, and weft yarn section can be conveyed through fluid supply tube by fluid.At least one Yarn senser for detecting the feature of weft yarn is arranged on fluid supply tube upstream.Control unit configuration comes to activate pilot jet based on the local distribution of the independent feature in the weft yarn section of corresponding conveying.
In a preferred embodiment, the value of weft yarn along at least one yarn parameter of the length of weft yarn is measured in the configuration of at least one sensor.Control unit is configured to the yarn parameter value of measurement to distribute to the relevant position on weft yarn, and configuration based on the yarn parameter value measured in the weft yarn section of corresponding conveying and they on described yarn line segment position actuating pilot jet.
At least another nozzle is preferably arranged on fluid supply tube upstream for carrying weft yarn and control unit configuration comes also to activate at least another nozzle based on the local distribution of the feature in the weft yarn section of corresponding conveying.Pilot jet can be combined in many group nozzles and all nozzles be combined in one group of nozzle can link and come together to activate.At least one Yarn senser described is preferably arranged on storing weft threads unit upstream, and weft yarn is inserted into fluid supply tube from storing weft threads unit.Control unit can configure the next additional parameter of yarn based on process and/or the parameter activated nozzle of jet loom.
Described at least two Yarn sensers can be parts for yarn clearer.This yarn clearer is known from prior art.They are arranged on spinning machine or coil winding machine usually for monitoring yarn qualities.
In the preferred embodiment of jet loom, each nozzle or often organize nozzle can be relevant to the control valve for utilizing compressed air to supply, such as electromagnetism two-way valve, and control valve can be activated by control unit.
Accompanying drawing explanation
Explain the preferred embodiments of the present invention below with reference to the accompanying drawings.
Fig. 1 schematically shows according to the jet loom with control device of the present invention.
Fig. 2 illustrates the block diagram according to control method of the present invention.
Fig. 3 schematically illustrates weft yarn section and its (b, c) two kinds of patterns.
Fig. 4 illustrates the chart of the nozzle opening times for control method according to the present invention.
Detailed description of the invention
Fig. 1 schematically shows according to the air-jet loom jet loom 1 with control device of the present invention.In this embodiment, air-jet loom jet loom 1 is designed to spray air loom.The yarn 91 being appointed as weft yarn is arranged on online cylinder 21.Yarn 91 is transferred to storing weft threads unit 22 from line cylinder 21, and it can be designed as drum type storage element.From storing weft threads unit 22 extract out weft yarn 92 by one or more accelerating jet 31,32(also referred to as main burner) accelerate and be fed to air supply pipe 8, its be arranged on by shed forming device (not shown) formed shed open in.Longitudinal direction x along it the specific weft yarn section 93 be inserted in air supply pipe 8 is called chooses yarn (pick) 93.Choose yarn 93 and be conducted through air supply pipe 8 by multiple pilot jet 33.Pilot jet 33 is preferably divisible into multiple nozzle sets 34.1 ..., 34.n.In the embodiment in figure 1, there is the nozzle 34.1 of 6 groups ..., 34.6, each have four pilot jets 33.Accelerating jet 31,32 and nozzle sets 34.1 ..., 34.6 respectively via control valve 41,42,44.1 ..., 44.n, such as electromagnetism two-way valve supplies compressed air.Not shown compressed air is fed to control valve 41,42,44.1 in FIG for simplicity ..., 44.n, also other elements of not shown air-jet loom jet loom 1.
Sensor unit 5 for detecting at least one yarn parameter of weft yarn 92 is continuously arranged on air supply pipe 8 upstream, and preferably online between cylinder 21 and storing weft threads unit 22.Sensor unit 5 can be designed to yarn clearer substantially, such as used up to now on spinning machine or coil winding machine for in-service monitoring yarn qualities, and as known from prior art.It comprises at least two Yarn sensers 51,52.Yarn senser 51,52 preferably carry out work according to different measuring principle.First Yarn senser 51 can be such as capacitive sensor, and the second Yarn senser 52 can be such as optical pickocff.Other measuring principles electric principle that such as rubs also is possible.Sensor 51,52 measure the intrinsic yarn parameter of at least two differences.Intrinsic yarn parameter can be the yarn qualities of per unit length, yarn diameter, thread density, yam surface structure, Yarn filoplume, thread material composition, in the yarn the percentage of exterior materials, or any other intrinsic yarn parameter.The downstream that the first breakage of weft arresting stop 61 that yarn 93 comes off is arranged on storing weft threads unit 22 is chosen for detecting.The outlet of air supply pipe 8 is arranged on further for detecting the second breakage of weft arresting stop 62 choosing yarn 93 arrival.
Control valve 41,42,44.1 ..., 44.n is controlled by control unit 7.Control unit 7 can be a part for standalone module or loom control unit.It is from sensor unit 5, from the first breakage of weft arresting stop 61 and/or the second breakage of weft arresting stop 62 and may from other sensors and/or from the Received signal strength of jet loom 1 own and/or data.Control unit 7, based on the yarn parameter detected by Yarn senser 7, calculates the optimum nozzle opening times being used for each single weft yarn and inserting.The air validity of choosing yarn 93 can be comprised in the calculation.The air validity of yarn is defined as the aerial ratio carrying surface and yarn qualities of yarn in WO-89/12122A1.
The block diagram illustrating of Fig. 2 is according to the embodiment of control method of the present invention.Here the control unit 7 that the rectangle be shown in broken lines represents can provide two control loops.Utilize the first control loop of the first controller 71 corresponding to the known loom control ring of prior art, and utilize the second control loop of second controller 72 method according to the present invention required.For the ease of the reason explained, have selected view in fig. 2, illustrate for two of two controllers 71,72 separately square frames.In fact, two controllers 71,72 can physically separate, but alternatively also can be combined in an individual unit.
The first, Closed control ring is compared with the swing circle of air-jet loom jet loom 1, is slower or quasi-static.Controlling the speed of loom driver.The input parameter of the first control loop is the overall situation of weft yarn 91 for using or the initial value of static parameter 202 on the one hand, such as mean yarn counting, mean yarn diameter, mean yarn density, yarn heterogeneity is about yarn qualities or the statistics determined value of yarn diameter and/or the distribution of Yarn filoplume length.Initial value 201 can from such as in textile laboratory by the model of such as applicant
yarn test device in advance on corresponding yarn 91 perform statistics inspection or simply from yarn supplier.On the other hand, other input parameters are loom datas 203.Actual control variable in the first control loop is weft yarn due in, as what detected by the second breakage of weft arresting stop 62.First controller 71 is mentioned and other input parameters calculating at least one controling parameters 204 for air-jet loom jet loom 1, as driving variable from above-mentioned.The example of controling parameters 204 is rotary speeies of loom driver and/or is fed to the air pressure of nozzle 31-33.Air pressure impacts weft yarn due in and/or air consumption 205.
The second, Open control ring is fast, namely its reaction time be the swing circle of jet loom 1 amplitude or less than it.Its input parameter is that next yarn inserts chooses the independent of yarn 93 or dynamic yarn parameter 206 as being supplied to of being determined by sensor unit 5.Second controller 72 calculates from these current dynamic yarn parameters 206 separately at least one controling parameters 204 being used for jet loom 1 by algorithm.The example of controling parameters 204 is independent start-up times (see Fig. 4) that nozzle 31-33 inserts for next weft yarn.It is minimum that second control loop target is to make air consumption 205, still keeps again due in 205 in acceptable preset range.Therefore realize independent weft yarn by the second control loop and insert control.
The controling parameters 204 calculated by the first controller 71 and second controller 72 must adjust mutually and/or interknit in a suitable manner.The quasistatic controling parameters 204 calculated by the first controller 71 is used as the basis of the Dynamic controlling parameter 204 calculating second controller 72.If the first controller 71 and second controller 72 calculate different controling parameters 204, such as nozzle air pressure or nozzle opening times, so the controling parameters 204 of the first controller 71 enters the algorithm run in second controller 72 as predefined parameter.If the first controller 71 and second controller 72 calculate identical controling parameters 204, so the controling parameters 204 of second controller 72 is used as the corrected value of the controling parameters 204 for the first controller 71, and it is used as basic value.
The dynamic yarn parameter 206 determined by sensor unit 5 also can affect the initial value 201 of weft yarn 91 alternatively, and it is used as the input parameter of the first control loop.This inserts not impact, because the first control loop more slowly reacts to next yarn.It relates to the correction of the initial value 201 of input in control unit 7 in advance on the contrary, and this correction has follow-up and long-term effect.
Required at synchronous 207 of sensor unit 5 and jet loom 1 loom for working satisfactorily of the second control loop.Particularly, need synchronous 207 the yarn parameter value 206 measured by sensor unit 5 to be assigned to and choosing the relevant position on yarn 93.As shown in Figure 1, sensor unit 5 is preferably arranged in storing weft threads unit 22 upstream.The benefit brought like this is, second controller 72 insertion corresponding choose yarn 93 before tool have sufficient time to calculate controling parameters 204.Therefore the controling parameters 204 calculated in advance to be stored in the storage element of second controller 72 and to fetch from storage element relevant choosing when yarn 93 prepares for inserting.Yarn 92 is stored in storing weft threads unit 22, and it has chooses yarn 93 corresponding to multiple, such as four, length.Synchronous 207 make the corresponding dynamic yarn parameter 206 for being determined by sensor unit 5 relevant to each position along the yarn 92 stored.Synchronous 207 can be used in from breakage of weft arresting stop 61,62 or from the signal of storing weft threads unit 22.
Fig. 3 relates to the modeling of choosing yarn 93, due to the simplification of the calculating in second controller 72.Fig. 3 (a) represents the longitudinal section by choosing yarn 93.The longitudinal section x choosing yarn 93 represents, radial direction r represents.The length of choosing yarn 93 x is in a longitudinal direction L.Yarn senser 51,52 x high local resolution scanning yarn parameters 206 in a longitudinal direction.Choose yarn 93 usually to have and can measure position correlated quality as yarn parameter 206 by the first Yarn senser 51 of sensor unit 5, and can be measured as by the second Yarn senser 52 of sensor unit 5 position associated diameters D (x) making yarn parameter 206.The measurement of single parameter such as diameter D (x) is enough for method according to the present invention.Except quality and diameter D (x), other yarn parameters 206 one or more can also be measured by sensor unit 5, such as thread density or filoplume, and be used in the model described below.
In second controller 72, calculate controling parameters 204 can consider in the local correlation position of the yarn parameter 206 chosen on yarn 93.It can perform with signal D (x) measured.But this calculating comprises a large amount of data.By as shown in Figure 3 (b) to choosing yarn 93 modeling, it can be simplified, and does not have any significant defect.For this reason, choose the idealized subsegment 94.1 that yarn 93 is divided into an integer m>1 with equal length L/m virtually ..., 94.m.Integer m can between 2 to 50, and preferably between 20 to 30; The simplified example of Fig. 3 (b) uses m=10.Each subsegment 94.i(i=1,2 ..., m) distribute to and choosing the position x on yarn 93
i, wherein such as,
In addition, each subsegment 94.i(i=1,2 ..., m) distribute to same diameter D
i, it is preferably the average diameter of this field 94.i:
Average or sampling can come by the processing unit relevant to sensor unit 5 or by second controller 72.For this reason, sensor unit 5 or controller 72 are from breakage of weft arresting stop 61,62, receive appropriate synchronizing signal 207 from storing weft threads unit 22 or from miscellaneous part.This model decreases data volume, and because this simplify the calculating performed by second controller 72.
The concrete example of the model with m=1 is shown in fig. 3 (c).Here whole yarn 93 of choosing is assumed to be identical, has the average diameter D provided by following formula
0:
The saving model illustrated in fig. 3 (c) is not a part of the present invention, but corresponding to prior art document US-4, the instruction of 4634783A1.It does not consider the local distribution in diameter value D (x) choosing yarn 93 measured by sensor unit 5.Therefore, this model does not solve the problem of described restriction in a satisfactory manner.
The sample chart of Fig. 4 represents that nozzle 31-33(for jet loom 1 is see Fig. 1) nozzle opening times.Substantially drawing on the horizontal axis corresponding to the anglec of rotation of time of jet loom 1, and each nozzle 31,32 and nozzle sets 44.1 ..., 44.n draws on a vertical axis.Horizontal bar 431,432,434.1 ... when 434.n represents respective nozzle 31,32 and nozzle sets 44.1 ..., 44.n is effective.In this example, select n=6, although without loss of generality.Some have white and black part.White portion symbol is according to the situation in the jet loom of prior art, and black relates to according to jet loom 1 of the present invention.The bar of filling black completely represents that nozzle opening times does not associatedly change with prior art.
In the fig. 4 embodiment compared with prior art, two controling parameters 204 change, and it is the duration section (or nozzle closed moment) that nozzle start time of opening and nozzle are opened.At least one of these controling parameters 204 is subject to corresponding impact of choosing the location-dependent parameters 206 that yarn 93 is determined by sensor unit 5.Prior art situation can be used as initial value, and then optimizes according to the present invention.Air effectively chooses yarn 93, namely large diameterly chooses yarn 93, many plumages that becomes mildewed, and little quality, needs shorter nozzle to open the cycle than the yarn 93 of choosing with lower air validity.
Make great efforts to optimize nozzle opening times 204 according to control method of the present invention and realize minimum possible air consumption 205.In optimization, need the critical boundaries condition of observing to be that each yarn 93 of choosing arrives and weaves process and do not interrupt.In addition, when the weft yarn due in 205 measured by the second breakage of weft arresting stop 62 should in preset range.On the one hand, nozzle opening times 204 can change for optimizing.The due in of control unit 7 calculation expectation and it is compared with the due in 205 measured.When the due in expected compares the due in of measurement in short-term, nozzle opening times can be reduced to reduce air consumption 205.In reverse situation, increase nozzle opening times a little to stop the possibility of the pause of loom 1.On the other hand, initial nozzle opening times also can change, and inserts because they affect weft yarn.Optimum initial nozzle opening times allows even shorter nozzle opening times and therefore allows lower air consumption 205.As shown in Figure 4, air consumption can be reduced relatively by method according to the present invention.
It should be noted that according to the present invention, bar 434.1 ..., the black part of 434.n is different mutually by chosen yarn 93 generally.In other words, certain chooses certain 434.j(j=1 of yarn 93, and 2 ..., different length n) can be had and/or choose the corresponding bar 434.j displacement of yarn along horizontal direction relative to another.This is because method according to the present invention is considered in each fact of choosing the local distribution of the weft yarn parameter value (206) measured in yarn 93.According to prior art, on the contrary, follow-uply choose yarn, bar 434.1 for multiple ..., the white portion of 434.n will not change, because prior art does not consider local distribution.
The yarn parameter measured by sensor unit 5 can not only be used in activated nozzle 31-33, and is used in the quality estimating weft yarn 91 in the mode similar to the yarn clearer on spinning machine or coil winding machine.According to the yarn faults that the estimation of certain QUALITY STANDARD detects, such as roughly square, comparatively thin local, or the exterior materials in weft yarn, it can be defined by the so-called clearing limit.When sensor unit 5 detects insupportable weft faults, defect chooses yarn 93 can from its regular path deflection so that it is not inserted into fabric.In the loom of at least two weft yarn cylinder accommodating fluid supply pipes, weft yarn, from the supply of line cylinder, can stop the defect yarn come from line cylinder.Alternatively or additionally, if the weft quality detected is inadequate, warning can be provided.
Be appreciated that and the invention is not restricted to embodiment as above.Those skilled in the art can will derive the more shape changeable also belonging to theme of the present invention by knowledge of the present invention.
List of reference signs
1 loom
21 line cylinders
22 storing weft threads unit
31,32 acceleration/main burner
33 pilot jets
34.1 ..., 34.n nozzle sets
41,42 control valves
44.1 ..., 44.n control valve
5 sensor units
51,52 Yarn sensers
61,62 breakage of weft arresting stops
7 control units
71,72 controllers
8 air supply pipes
91,92 weft yarns
93 choose yarn
94.1 ..., 94.m chooses yarn subsegment
201 initial values
202 static yarn parameters
203 other loom datas
204 loom control parameters
205 due ins, air consumption
206 dynamic yarn parameters
207 is synchronous
The bar of 431,432 instruction nozzle activities
434.1 ..., 434.n indicates the bar of nozzle activity.
Claims (24)
1. for controlling a method for jet loom (1),
This jet loom (1) comprises the multiple pilot jets (33) arranged along fluid supply tube,
Wherein
Weft yarn (92) is incorporated in described fluid supply tube,
Activate described pilot jet (33) so that the staggered fluid pulse of injecting time, it produces fluid stream in described fluid supply tube, and
Described weft yarn (92) is carried by the fluid flowing through fluid supply tube,
It is characterized in that
Local distribution based on the feature in the weft yarn section (93) of corresponding conveying activates pilot jet (33).
2. method according to claim 1, is wherein inserting the value (206) along at least one yarn parameter of the linear measure longimetry weft yarn (92) of weft yarn (92) before fluid supply tube,
The yarn parameter value (206) measured is assigned to the relevant position (x) on described weft yarn (92), and
Described pilot jet (33) activates based on the upper described yarn parameter value (206) of measuring of the weft yarn section (93) of corresponding conveying and their positions (x) on described weft yarn section (93).
3. method according to claim 2, the weft yarn section (93) wherein preparing to insert fluid supply tube is molded as by integer (m) identical subsegment (94.1 with equal length (L/m), 94.m) form, each subsegment (94.i) is dispensed on the position (x on described weft yarn section (93)
i), and the value (D of at least one yarn parameter
i) upper average in corresponding subsegment (94.i).
4. method according to claim 3, wherein said integer (m) is between 2 to 50.
5. method according to claim 4, wherein integer (m) is between 20 to 30.
6. method according to claim 1, in the actuating of described pilot jet (33), wherein calculate at least one controling parameters (204), this controling parameters (204) is selected from group below: the initial time that nozzle is opened, the end time that nozzle is opened, the duration section that nozzle is opened, and the fluid pressure in pilot jet (33).
7. method according to claim 1, wherein for carrying at least another nozzle (31 of weft yarn section (93), 32) be provided in described fluid supply tube upstream, and also activate based on the local distribution of the feature in the weft yarn section (93) of corresponding conveying.
8. method according to claim 7, wherein at described at least another nozzle (31,32) at least one controling parameters (204) is calculated in actuating, this controling parameters (204) is selected from group below: the initial time that nozzle is opened, the end time that nozzle is opened, the duration section that nozzle is opened, and the fluid pressure in described at least another nozzle (31,32).
9. method according to claim 1, wherein
Described feature is at least one yarn parameter selected from group below: yarn qualities, yarn diameter, thread density, yam surface structure, Yarn filoplume, thread material.
10. method according to claim 2, wherein
Produce the measurement of at least one yarn parameter in storing weft threads unit (22) upstream, weft yarn is inserted into fluid supply tube from storing weft threads unit (22).
11. methods according to claim 1, wherein produce the actuating of nozzle (31-33) by this way, and namely the consumption of described fluid is minimum.
12. methods according to claim 1, wherein produce the actuating of nozzle (31-33) by this way, and namely braiding process should not be interrupted, and weft yarn (92) at the due in of the end of fluid supply tube in preset range.
13. methods according to claim 1, wherein nozzle (31-33) activates based on the additional parameter (202) of yarn (91) processed and/or the parameter (203) of jet loom (1).
14. methods according to claim 1, the yarn flaws wherein by detecting according to the estimation of predetermined quality standard, position correlated characteristic makes the quality for estimation weft yarn (92).
15. method according to claim 14, wherein the weft yarn section (93) of not enough quality deflects from its regular path, so that it is not inserted in fluid supply tube, and/or provides warning when such weft yarn section (93) being detected.
16. methods according to aforementioned arbitrary claim, wherein
Described pilot jet (33) activates based on the local distribution of the independent feature of at least two differences of the weft yarn section (93) of corresponding conveying.
17. 1 kinds for controlling the device of jet loom (1),
This jet loom (1) comprises the multiple pilot jets (33) arranged along fluid supply tube,
Described device comprises control unit (7), for activating pilot jet (33) so that the staggered fluid pulse of injecting time, it produces fluid stream in described fluid supply tube, and weft yarn (92) can be conveyed through described fluid supply tube by fluid thus
It is characterized in that
At least one Yarn senser (51,52) for detecting the feature of described weft yarn (92) is arranged on described fluid supply tube upstream, and
Control unit (7) configuration comes to activate pilot jet (33) based on the local distribution of the feature in the weft yarn section (93) of corresponding conveying.
18. devices according to claim 17, at least one Yarn senser wherein said (51,52) configuration carrys out the value of at least one yarn parameter of weft yarn (92) described in the linear measure longimetry along described weft yarn (92),
Described control unit (7) configuration comes
The yarn parameter value of measurement is distributed to the relevant position (x) on weft yarn (92), and
Pilot jet (33) is activated based in the upper yarn parameter value measured of the weft yarn section (93) of corresponding conveying and their positions (x) on described weft yarn section (93).
19. devices according to claim 17, wherein at least another nozzle (31,32) fluid supply tube upstream is provided in for carrying weft yarn section (93), and at least another nozzle (31,32) described in described control unit (7) configuration comes also to activate based on the local distribution of the feature in the weft yarn section (93) of corresponding conveying.
20. devices according to claim 18, wherein at least another nozzle (31,32) fluid supply tube upstream is provided in for carrying weft yarn section (93), and at least another nozzle (31,32) described in described control unit (7) configuration comes also to activate based on the local distribution of the feature in the weft yarn section (93) of corresponding conveying.
21. devices according to claim 18, at least one Yarn senser (51 wherein said, 52) be arranged on storing weft threads unit (22) upstream, weft yarn (92) is inserted into fluid supply tube from storing weft threads unit (22).
22. devices according to claim 17-21 any one, at least one Yarn senser wherein said (51,52) is a part for yarn clearer (5).
23. 1 kinds of jet looms (1), have the device for controlling jet loom (1),
It is characterized in that
Device according to claim 16-20 any one for controlling the device of jet loom (1).
24. jet looms according to claim 23, wherein, described jet loom sprays air loom or water jet looms.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH19872010 | 2010-11-25 | ||
| CH1987/10 | 2010-11-25 | ||
| PCT/CH2011/000284 WO2012068697A2 (en) | 2010-11-25 | 2011-11-24 | A method and apparatus for controlling a jet loom |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103261501A CN103261501A (en) | 2013-08-21 |
| CN103261501B true CN103261501B (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180057049.5A Active CN103261501B (en) | 2010-11-25 | 2011-11-24 | For controlling the method and apparatus of jet loom |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2643509B1 (en) |
| JP (1) | JP5901030B2 (en) |
| CN (1) | CN103261501B (en) |
| BR (1) | BR112013013114A2 (en) |
| WO (1) | WO2012068697A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110453344A (en) * | 2018-05-08 | 2019-11-15 | 株式会社丰田自动织机 | The wefting insertion control method of air-jet loom |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016205750A1 (en) * | 2015-06-18 | 2016-12-22 | Kevin Kremeyer | Directed energy deposition to facilitate high speed applications |
| BR112017027772A2 (en) | 2015-11-09 | 2018-09-11 | Toyota Ind Corporation | arrangement for weft feed |
| JP6447533B2 (en) * | 2016-02-19 | 2019-01-09 | 株式会社豊田自動織機 | Weft insertion control method and weft insertion control apparatus for air jet loom |
| JP7359529B2 (en) * | 2018-05-08 | 2023-10-11 | 株式会社豊田自動織機 | Weft insertion control method in air jet loom |
| JP7156140B2 (en) | 2019-04-02 | 2022-10-19 | 株式会社豊田自動織機 | AIR-JET LOOM AND CONTROL METHOD OF AIR-JET LOOM |
| CN111560695B (en) * | 2020-04-26 | 2021-06-15 | 青岛海西岳丰机械有限公司 | Water-jet and air-jet dual-purpose loom |
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- 2011-11-24 WO PCT/CH2011/000284 patent/WO2012068697A2/en active Application Filing
- 2011-11-24 BR BR112013013114A patent/BR112013013114A2/en not_active IP Right Cessation
- 2011-11-24 EP EP11791418.4A patent/EP2643509B1/en active Active
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| CN110453344B (en) * | 2018-05-08 | 2021-03-16 | 株式会社丰田自动织机 | Weft insertion control method for air jet loom |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2643509A2 (en) | 2013-10-02 |
| EP2643509B1 (en) | 2016-05-11 |
| JP2014500914A (en) | 2014-01-16 |
| JP5901030B2 (en) | 2016-04-06 |
| BR112013013114A2 (en) | 2016-08-16 |
| WO2012068697A2 (en) | 2012-05-31 |
| WO2012068697A3 (en) | 2013-05-30 |
| CN103261501A (en) | 2013-08-21 |
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