CN1227397C - Weft-insertion nozzle of water-jet loom - Google Patents
Weft-insertion nozzle of water-jet loom Download PDFInfo
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- CN1227397C CN1227397C CNB001087371A CN00108737A CN1227397C CN 1227397 C CN1227397 C CN 1227397C CN B001087371 A CNB001087371 A CN B001087371A CN 00108737 A CN00108737 A CN 00108737A CN 1227397 C CN1227397 C CN 1227397C
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- aforementioned
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- weft
- weft yarn
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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
- D03D47/32—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 liquid jet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
- B05B1/06—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in annular, tubular or hollow conical form
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D49/00—Details or constructional features not specially adapted for looms of a particular type
- D03D49/24—Mechanisms for inserting shuttle in shed
- D03D49/50—Miscellaneous devices or arrangements concerning insertion of weft and not otherwise provided for
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
- D03J1/00—Auxiliary apparatus combined with or associated with looms
- D03J1/04—Auxiliary apparatus combined with or associated with looms for treating weft
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Abstract
A weft yarn piercing a needle for guiding the weft yarn is inserted with a pressurized water jetted from a jetting opening by the supply of the pressurized water to a waterway between the outer periphery of the needle for guiding the weft yarn and the inner hole of a nozzle body. Plural distributors are arranged in a ring like shape in the waterway. A contracted passage is formed at the downstream of the plural distributors. The angle [theta] of the tapered hole 171 for forming-the contracted passage is regulated within the range of 15deg.-30deg., and the length of the distributor 192 in the conveying direction of the weft yarn in the needle for guiding the yarn is regulated within the range of 0.71-1.71 times (5-12 mm) as much as the diameter d of the inner hole.
Description
Technical field
The present invention relates to a kind of Weft-insertion nozzle, form the water route between the outer peripheral face of the weft yarn guide pin of this nozzle in inserting nozzle body and the inner peripheral surface of aforementioned nozzle body, by providing pressure (hydraulic) water to aforementioned water route, pressure (hydraulic) water is sprayed from jet, the weft yarn and the injection water that sprays from aforementioned jet of aforementioned weft yarn (weft) guide pin are led latitude simultaneously.
Background technology
At the fair 4-18053 communique of spy, open clear 62-88779 communique in fact, be incorporated with the current regulator in the disclosed Weft-insertion nozzle in the Te Kaiping 10-130997 communique etc., utilize this current regulator that the pressure (hydraulic) water current in the Weft-insertion nozzle are adjusted, in the concentrative while of the water of guaranteeing from Weft-insertion nozzle, to eject, improve and lead the jet velocity of latitude water.The current regulator is made of a plurality of current trimmers (stabilizer), and they are arranged in the weft yarn guide pin annular water route on every side.The pressurised stream that flows through in the Weft-insertion nozzle is crossed between a plurality of current trimmers, carries out the current adjustment.The pressure (hydraulic) water that process is adjusted ejects from the jet of Weft-insertion nozzle, will draw by the weft yarn in the weft yarn guide pin, flies out in Warp opening.
Always, when knitting the width of cloth and be the 190cm left and right sides, the revolution of loom is about 800rpm.Yet, recently, requiring when knitting the width of cloth and be the 190cm left and right sides, the revolution of loom is up to 1050rpm～1300rpm.In other words, in the past, weft yarn is led latitude with the latitude rate of leading of 1500m/ branch ratio, and recently, then require 2000m/ branch～2500m/ to divide the latitude rate of leading of latitude of leading.For the latitude rate is led in raising, must strengthen and lead the jet velocity of latitude water.For this reason, can improve water supply pressure to the pump of Weft-insertion nozzle force feed water.Usually, the force feed that carries out water with pump utilizes elastic force usually.Therefore, press, can increase aforementioned elastic force for the water supply that improves pump.But, when increasing aforementioned elastic force, need to strengthen the energy that is used to increase the spring bending degree, from energy-conservation viewpoint, lead the water supply that the latitude rate improves pump for raising and press unsatisfactory.
In addition, when the jet velocity of leading latitude water increased, this was led latitude water and can not fully be adjusted between the current trimmer in Weft-insertion nozzle, and residual in leading latitude water have turbulent composition, because jet velocity strengthens, the diffusion of leading latitude water that is flying out increases.When the diffusion of leading latitude water increased, the amount that bumps with warp thread (warp) increased, thereby can increase the fluffing (nap ofwarp) of warp thread, and the grade of fabric is reduced, and simultaneously, had the deflection that produces the weft yarn front end to increase, and led the not good danger of latitude.
Summary of the invention
The purpose of this invention is to provide a kind of Weft-insertion nozzle, this nozzle do not increase power consumption and can guarantee to lead the stability of latitude and the grade of fabric in, also can improve the latitude rate of leading.
For this reason, the present invention relates to a kind of Weft-insertion nozzle, form the water route between the outer peripheral face of the weft yarn guide pin in inserting nozzle body and the inner peripheral surface of aforementioned nozzle body, by to aforementioned water route supplied with pressurized water, aforementioned pressure (hydraulic) water is sprayed from jet, to lead latitude simultaneously by the weft yarn and the injection water of weft yarn guide pin, constitute the Weft-insertion nozzle with following structure: ring-type disposes a plurality of current trimmers formation current regulators in the aforementioned water route around the aforementioned weft yarn guide pin, in the aforementioned water route in aforementioned a plurality of current trimmers downstream, in forming the damping stream between the outer peripheral face of the inner peripheral surface of the taper hole of undergauge and aforementioned weft yarn guide pin gradually towards aforementioned jet from aforementioned current trimmer one side.And, according to first scheme of the present invention, when the angle that makes aforementioned taper hole is in 15 °～30 ° scope, make the length of the aforementioned current trimmer on the weft yarn carriage direction in the aforementioned weft yarn guide pin with respect to the diameter of the endoporus of aforementioned nozzle body in 0.71 times～1.71 times scope.
As the fair 4-18053 communique of spy was disclosed, in the prior art, the angle of aforementioned taper hole (representing with θ in the specification of the fair 4-18053 communique of spy and figure) was about 6 °～11 °.The angle of countersink pressure loss in this scope is big, and leading the latitude rate is about 1500m/ divides.Yet it is that the length of 15 °～30 ° and current trimmer is 0.71 times～1.71 times structure with respect to the diameter of nozzle endoporus that the present invention adopts angle of countersink, make lead the latitude rate and reach 2000m/ branch～2500m/ and divide about.
In addition, according to alternative plan of the present invention, when the angle that makes aforementioned taper hole was 15 °～30 °, the length of the aforementioned current trimmer on the weft yarn carriage direction of order in aforementioned weft yarn guide pin was 5mm～12mm.
In general Weft-insertion nozzle, the diameter of nozzle body endoporus is about 7～8mm.And in the present invention, the length of current trimmer is 5mm～12mm, and this structure also can be advantageously applied in the aforementioned general Weft-insertion nozzle.
Description of drawings
Fig. 1 is the side sectional view of expression according to first embodiment of Weft-insertion nozzle in the water jet looms of the present invention.
Fig. 2 is the cutaway view along Figure 1A-A line of the relation of expression nozzle body, current adjuster and weft yarn guide pin.
Fig. 3 is the stereogram of current adjuster.
Fig. 4 is the curve map that changes the measured charge for remittance rate of the length L of the angle θ of taper hole and current trimmer.
Fig. 5 changes the length L of the angle θ of taper hole and current trimmer to leading the curve map that latitude stability is estimated.
Fig. 6 changes the curve map that the length L of the angle θ of taper hole and current trimmer is estimated fabric grade.
Fig. 7 is the diagrammatic side view that the device of charge for remittance rate is measured in expression.
Fig. 8 is the diagrammatic side view of expression Weft-insertion nozzle.
Fig. 9 is the side sectional view according to second embodiment of Weft-insertion nozzle in the water jet looms of the present invention.
The specific embodiment
First embodiment
Below, according to Fig. 1～Fig. 8 first embodiment with the concrete enforcement of the present invention is described.
Fig. 1 represents Weft-insertion nozzle 10.Tubular nozzle body 12 is embedded in the support holes 111 of bearing support 11.Overlap 13 threaded engagement on the outer peripheral face of the front (right side among Fig. 1) of nozzle body 12.Bearing support 11 is clamped in the flange 121 that is formed at nozzle body 12 rear end side (left side among Fig. 1) and overlaps between 13 by adapter sleeve 13, and be fixed on the nozzle body 12.Support holes 111 around the nozzle body 12 links to each other with water-feeding path 112 in the bearing support 11.The outer peripheral face of nozzle body 12 is communicated with water-feeding path 112 with annular chamber 16 between the support holes 111.
Weft yarn guide pin 14 embeds in the tube of nozzle body 12.Cover 15 is pressed into and is fixed on the rearward end of weft yarn guide pin 14.Cover 15 threaded engagement of the part of formation weft yarn guide pin 14 are in the interior week of flange part 121.In addition, the large-diameter portion 141 of weft yarn guide pin 14 is fitted in the endoporus 122 of nozzle body 12.The minor diameter 142 that is formed at weft yarn guide pin 14 is communicated with annular chamber 16 through inflow entrance 123 with ring-type water route 18 between the inner peripheral surface of the endoporus 122 of nozzle body 12.Inflow entrance 123 is around the minor diameter 142 of weft yarn guide pin 14, and configuration equally spacedly is arranged on the nozzle body 12.The outer peripheral face of minor diameter 142 is only being given taper towards front.
Tubular jet organizator 17 is pressed in the tube that is fixed on nozzle body 12 front ends.Be formed with taper hole 171 on the inner peripheral surface of the jet organizator 17 of the part of formation nozzle body 12.This taper hole 171 is the shape by the rear end forward end undergauge of jet organizator 17.The scope of taper hole 171 is that the rear end from jet organizator 17 differs from 172 until the rear end of jet organizator 17 and the middle ladder between the front end.The minor diameter 142 of weft yarn guide pin 14 front is inserted and is penetrated in the jet organizator 17, so that differ from 172 by the through ladder in the inboard of taper hole 171.Constitute damping stream 173 between the outer peripheral face of the inner peripheral surface of taper hole 171 and minor diameter 142.The front end of damping stream 173 becomes jet 20.
Provide pressure (hydraulic) water by not shown pump, flow into water route 18 via water-feeding path 112, annular chamber 16 and inflow entrance 123.The pressure (hydraulic) water that flows into water route 18 is sprayed by jet by reaching damping stream 173 between a plurality of current trimmers 192.Weft yarn Y by weft yarn guide pin 14 inside sprays by the water that is sprayed by jet, leads latitude in Warp opening.
In this first embodiment, the outer diameter D of nozzle body 12 (being shown in Fig. 1) is 12mm, and the diameter d of endoporus 122 (being shown in Fig. 1) is 7mm.Diameter d is that the upstream side at current trimmer 192 records.In addition, in the present invention, the length L of current trimmer 192 (is shown in Fig. 1/because former not shown, add.Please controlling chart 1) be the average length on the carriage direction (direction of representing with arrow R among Fig. 1) of weft yarn Y in weft yarn guide pin 14.
Fig. 4, Fig. 5 and Fig. 6 for expression by the characteristic of confluxing of the water that sprays from Weft-insertion nozzle 10, lead viewpoints such as latitude stability and fabric grade, be used for determining the angle θ of taper hole 171 and current trimmer 192 length suitable scope weave result of experiment.At this moment weaving condition is, the revolution of loom is 1200rpm, and knitting the width of cloth is 190cm, is 100kgf/cm to the pressure of supply water (pump pressure) of water-feeding path 112
2Fabric is the nylon taffeta.
The curve of Fig. 4 is represented the charge for remittance rate (%) when the length L of the angle θ of taper hole 171 and current trimmer 192 is carried out various the change.The charge for remittance rate is represented the ratio of the water yield of being compiled in the collection pipe 21 (being shown in Fig. 7) and the Total Water that sprays from Weft-insertion nozzle 10, wherein, the diameter of collection pipe 21 is 7mm, its set-up mode is, be positioned at the position at 1/2 place of the angle α of the T of warp thread up and down shown in Figure 8 with respect to the axle center of weft yarn guide pin 14, distance is led the end side 190cm place of latitude portion, is arranged on same with the axle center of weft yarn guide pin 14.Fig. 7 and Fig. 8 are respectively the collection pipe of being seen 21, the diagrammatic side view of Weft-insertion nozzle 10 when the side of longitude yarn row is observed, 22 expression heald frames (heald), and 23 is reed (reed), and T is a warp thread, and W is woven fabric (woven fabric).The transverse axis of the curve map of Fig. 4 is the angle θ of taper hole 171, and the longitudinal axis is the charge for remittance rate.Curve D is the charge for remittance rate curve of the length L of current trimmer 192 when being 3mm (prior art).Curve E1 is the charge for remittance rate curve of the length L of current trimmer 192 when being 5mm, and curve E2 is the charge for remittance rate curve of the length L of current trimmer 192 when being 6mm.Curve E3 is the charge for remittance rate curve of the length L of current trimmer 192 when being 9mm, and curve E4 is the charge for remittance rate curve of the length L of current trimmer 192 when being 12mm.Curve E5 is the charge for remittance rate curve of the length L of current trimmer 192 when being 15mm.
Graphical representation among Fig. 5, when the length L of the angle θ of taper hole 171 and current trimmer 192 is made various change, the evaluation that the deflection when the front end of just in-flight weft yarn is before reaching the end of leading latitude is carried out.The transverse axis of Fig. 5 is represented the angle θ of taper hole 171, and the longitudinal axis is represented the length L of current trimmer 192.The situation of No. zero not enough 3mm of expression deflection, the situation of △ number expression deflection not enough 5mm more than the 3mm, * number situation of expression deflection more than 5mm.Deflection not enough 5mm (△) more than 3mm can lead the lowest term of latitude reliably.
The curve map of Fig. 6 is the cloth grade that is illustrated in when the length L of the angle θ of taper hole 171 and current trimmer 192 carried out various the change.The transverse axis of Fig. 6 is represented the angle θ of taper hole 171, and the longitudinal axis is represented the length L of current trimmer 192.No. zero expression be judged to A level, △ number expression B level, * number expression C level (A level, B level and C level be grade) according to COTTON FABRIC export inspection standard.The judgement of fabric grade is carried out according to fluffing and warp streak.Particularly, when weaving at a high speed, water that Weft-insertion nozzle 10 sprays and warp thread T collision,, be the reason that causes fluffing and warp streak.
In the angle of taper hole 171 is Weft-insertion nozzle of the prior art about 6 °～11 °, in the damping stream 173 that forms between the outer peripheral face of the inner peripheral surface of taper hole 171 and weft yarn guide pin 14, and extend on the carriage direction R that passes through the roughly the same little position of the passing through cross-sectional area weft yarn Y in weft yarn guide pin 14 of cross-sectional area of jet 20.Therefore, flow path resistance strengthens, and it is big that the pressure loss of water becomes, and leading the latitude rate is about 1500m/ divides.When the angle θ of taper hole 171 bigger than prior art, more than 15 ° the time, shorter than prior art with the position of passing through cross-sectional area of passing through the area same size of jet 20.Therefore, flow path resistance is little, and the pressure loss of water is little, the jet velocity height of water.Thereby be proved to be the latitude rate of leading that can obtain about 2000m/ branch～2500m/ divides.
Yet, only strengthening the angle θ of taper hole 171, the converging property of injection water will descend, and can produce the problem relevant with leading latitude and fabric grade.That is, be difficult to a plurality of inflow entrances 123 are set fully symmetrically with respect to water-feeding path 112.Therefore, when a plurality of inflow entrances 123 flowed into pressure (hydraulic) water, pressure (hydraulic) water was poor to the inflow generation time of each inflow entrance 123 from water-feeding path 112.When producing this time difference, can occur in the pressure (hydraulic) water in the water route 18 and contain the turbulent flow that rotates composition.For reducing flow path resistance, between each current trimmer 192, to have enough intervals.Therefore, after pressure (hydraulic) water passed through between each current trimmer 192, aforementioned rotation composition also partly remained in the pressure (hydraulic) water.By later also residual rotation composition between each current trimmer 192 injection water is produced centrifugal force.This centrifugal force is considered to one of reason that makes the injection water diffusion.The injection water of diffusion and warp thread collision increase fluffing, warp streak, and fabric grade is descended.In addition, the transport force of weft yarn reduces, and increases the skew of weft yarn heading simultaneously, consequently causes the multiple latitude of leading not good.Known, be about 15% for leading the necessary charge for remittance rate of latitude reliably.
Though not shown on the curve map of Fig. 4, as previously described, for obtaining the latitude rate of leading about 2000m/ branch～2500m/ divides, the angle θ of taper hole 171 must be more than 15 °.
As shown in Figure 4, according to the experimental result by the represented existing current adjuster of curve D, in charge for remittance rate less than 15% more than 15 °, and along with the further increasing of angle θ, the charge for remittance rate further descends.Length L according to current trimmer 192 is the experimental result of the current adjuster 19 of 5mm～12mm, and in angle θ was 15 °～30 ° scope, the rate of confluxing was more than 15%, and when angle θ was 30 °, the charge for remittance rate was to exceed a certain amount of numerical value of 15%.Though not shown among the figure, when angle θ surpassed 30 °, the charge for remittance rate then further descended, and irrelevant with the length L of current trimmer 192, can not expect to obtain to lead reliably latitude.
When the length L of current trimmer 192 was 15mm, the charge for remittance rate when angle θ is 25 ° dropped to 11%.The reason of this decline of charge for remittance rate can think because when the length L of current trimmer 192 is 15mm, and the current that length is lower than in the current trimmer of 15mm are adjusted the effect maximum, otherwise but, it is big that the resistance of stream also becomes.Big flow path resistance can cause the big pressure loss, can not obtain enough flow velocitys.Therefore, lead the latitude decreased performance, can not expect to lead reliably latitude.
Reach the latitude rate of leading that 2000m/ branch～2500m/ divides in order not improve pump pressure, as previously described, the angle θ that need make taper hole 171 is more than 15 °.On the other hand, in the charge for remittance rate experiment as shown in Figure 4, when up to 30 °, be the higher limit of reliably leading latitude.Thereby the angle θ of taper hole 171 is 15 °～30 ° can obtain good result.
Shown in Figure 5 leading in the latitude stability experiment, when angle θ is 25 °, the scope of the length L of current trimmer 192 obtains good result between 6mm～9mm, when angle θ was 20 °, the length L of current trimmer 192 obtained good result in the scope of 6mm～12mm.
In fabric grade shown in Figure 6 experiment, when angle θ was 25 °, the scope of the length L of current trimmer 192 obtained good result when 6mm～12mm.In addition, in this experiment, situation when having provided the woven nylon taffeta, but when the woven polyester taffeta, though not shown,, when angle θ is 20 °, be No. zero in the scope of the length L=6mm of current trimmer 192～12mm, in the scope of in addition angle θ=15 °～30 °, and be in the scope of length L=5mm～12mm △ number.For other fabric types, suitable filling speed difference, but especially obtains optimum in the scope of the length L=6mm～12mm of current trimmer 192, and at this moment, the angular range of taper hole 171 is θ=20 °～25 °.
In addition, when increasing angle θ, filling speed improves, but the deflection limit of weft yarn front end is angle θ=30 °.Thereby,, in Fig. 5 and Fig. 6, all omit for the angle θ that surpasses 30 °.
In first embodiment, obtain following effect.
(1-1) be 25 °, when the scope of the length L of current trimmer 192 is the structure of 6mm～9mm, obtain the charge for remittance rate as the angle θ that adopts taper hole 171, lead the evaluation of latitude stability and the result that the fabric grade evaluation all is No. zero more than percent 16.Thereby it is optimum that the pressure that the structure of θ=25 ° and L=6mm～9mm is higher than prior art at the pressure that needn't make pump promptly reaches leading on the latitude rate that 2000m/ branch～2500m/ divides.
(1-2) the angle θ when employing taper hole 171 is 25 °, during the structure of the length L of current trimmer 192 in the scope of 6mm～12mm, obtain the charge for remittance rate more than percent 16, an evaluation part of leading latitude stability is that the fabric grade evaluation all is No. zero result △ number.That is, in the evaluation of fabric grade, same result when obtaining the structure with θ=25 ° and L=6mm～9mm.Thereby the structure of θ=25 ° and L=6mm～12mm is brought up at pressure that will not pump, and can to reach leading on the latitude rate that 2000m/ branch～2500m/ divides more than the pressure of prior art be to be similar to optimum state.
(1-3) adopt taper hole 171 angle θ be 20 °～25 °, during the structure of the length L of current trimmer 192 in the scope of 6mm～9mm, obtain the charge for remittance rate more than percent 16, lead the latitude estimation of stability and be No. zero, it is No. zero result that fabric grade is estimated also major part.Thereby, adopt θ=20 °～25 °, and the structure of L=6mm～9mm leading on the latitude rate about the pressure that compared with prior art need not improve pump can reach 2000m/ branch～2500m/ and divides is very desirable.
It is 20 °～25 ° (1-4) at the angle θ that adopts taper hole 171, the length L of current trimmer 192 is when the structure of 6mm～12mm, obtain the charge for remittance rate more than percent 16, lead a latitude estimation of stability part and be △ number, it is No. zero result that fabric grade is estimated also major part.Thereby, adopt θ=20 °～25 °, and the structure of L=6mm～9mm leading on the latitude rate about the pressure that compared with prior art need not improve pump can reach 2000m/ branch～2500m/ and divides is goodish.
Be 15 °～30 ° (1-5), during the structure of the length L of current trimmer 192 in 5mm～12mm scope, obtain the charge for remittance rate, lead all results more than △ of latitude estimation of stability and fabric grade evaluation more than percent 15 at the angle θ that adopts taper hole 171.Thereby, adopt θ=15 °～30 °, and the structure of L=5mm～12mm leading on the latitude rate about can reaching 2000m/ branch～2500m/ more than the pressure that needn't bring up to the pressure of pump prior art and dividing is also very desirable.
(1-6) combine when observing as the latitude estimation of stability result that leads, have along with the charge for remittance rate reduces to percent 15 side shiftings, the tendency that the front end deflection of weft yarn increases the charge for remittance rate result among Fig. 4 and Fig. 5.That is, the deflection of weft yarn front end is subjected to the influence of charge for remittance rate.In the scope of length L at 5mm～12mm of current trimmer 192, and angle θ is that the charge for remittance rate reaches more than 16% under the situation in 17 °～26 °.When the charge for remittance rate 16% when above, the evaluation of leading in the latitude stability No. zero increases.Thereby the length L that adopts current trimmer 192 is that 17 °～26 ° structure brings up at pressure that will not pump that just can to reach leading on the latitude rate about 2000m/ branch～2500m/ branch well more than the pressure of prior art be desirable at 5mm～12mm and angle θ.
(1-7) this first embodiment is to describing during for 7mm in the diameter d of the endoporus 122 of nozzle body 12.When as (1-6) is illustrated, when the length L of current trimmer 192 was 5mm～12mm, the ratio of this length L relative diameter d (7mm) was 0.71 times～1.71 times.Thereby the length L that is positioned at the current trimmer 192 on the carriage direction of weft yarn Y of weft yarn guide pin 14 when 0.71 times～1.71 times the scope, can obtain result as hereinbefore with respect to the diameter d of the endoporus 122 of nozzle body 12.In addition, when this ratio is 6mm～12mm in the length L of current trimmer 192, be 0.86 times～1.71 times, when length L is 6mm～9mm, be 0.86 times～1.29 times.
The result of (1-8) comprehensive (1-1)～(1-7), as can be seen, at the angle θ that adopts taper hole 171 is 15 °～30 °, and when the length L of current trimmer 192 is 0.71 times～1.71 times a structure with respect to the diameter d of the endoporus 122 of nozzle body 12, the pressure of pump need not be brought up to more than the pressure of prior art and can in the grade of the stability of guaranteeing to lead latitude and fabric, reach the latitude rate of leading about 2000m/ branch～2500m/ divides.
(1-9) in general Weft-insertion nozzle, the diameter d of the endoporus 122 of nozzle body 12 is about 7mm～8mm.This size is to guarantee when the end of weft yarn being led latitude is led the water yield of latitude reliably considering, even also weft yarn can be imported to and set under the situation that makes the structure close mode in the Warp opening being set up in parallel a plurality of Weft-insertion nozzles.The length L of current trimmer 192 is in the general Weft-insertion nozzle of the structure of the 5mm～12mm diameter d=7mm～8mm that can be applicable to endoporus 122 well.
(1-10) water that is ejected by Weft-insertion nozzle 10 spreads gradually.When this diffusion is very big, the charge for remittance rate is reduced.Spread the collision of big injection water and warp thread, the grade of fabric is reduced.The position that is provided with at Weft-insertion nozzle shown in Figure 8 10 is provided with identically with traditional, improves than conventional art among first embodiment of charge for remittance rate, can dwindle the angular aperture α of warp thread T.Utilization is than the little structure of prior art angular aperture α, and the return volume of heald frame 22 (time) shortens, and, makes the loom high speed that is.With identical and compare with conventional art among first embodiment that improves the charge for remittance rate in the past, what can make Weft-insertion nozzle 10 is provided with fell (cloth fell) W1 of position than the more close fabric W of prior art at the angular aperture α of warp thread T.That is, can make the more close fell W1 of last going-back position of reed 23, thereby shorten the oscillating quantity (time) of reed 23, that is, make the loom high speed.
Second embodiment
Below, second embodiment shown in Figure 9 is described.The structural portion identical with first embodiment given identical label.
The ring portion 241 of the current adjuster 24 of this second embodiment has from the rear end side of current trimmer 242 taper of distolateral undergauge forward.The inner peripheral surface 243 of ring portion 241 is connected on the taper hole 171 of jet organizator 17 continuously.Inner peripheral surface 243 is connected structure on the taper hole 171 continuously just can reduces between current trimmer 242 flow path resistance to the stream of damping stream 173.The length L of current trimmer 242 is the average lengths on the carriage direction R of weft yarn Y in weft yarn guide pin 14.
In the present invention, the number of current trimmer can be at 16～22 middle appropriate changes.
As previously described in detail, the scope of angle θ by making taper hole 171 is 15 °～30 °, the length L of the current trimmer 191 in weft yarn guide pin 14 on the carriage direction R of weft yarn Y is 0.71 times～1.71 times (5mm～12mm) with respect to the ratio of the diameter d of the endoporus 122 of nozzle body 12, thereby needn't increase power consumption, when guaranteeing to lead latitude stability and fabric grade, can improve the latitude rate of leading, obtain excellent effect.
Claims (10)
1. the Weft-insertion nozzle in the water jet looms, form water route (18) between the outer peripheral face of the weft yarn guide pin (14) of this nozzle in inserting nozzle body (12) and the inner peripheral surface of aforementioned nozzle body (12), by supplying with pressure (hydraulic) water to aforementioned water route (18), spray aforementioned pressure (hydraulic) water by jet (20), will lead latitude simultaneously with injection water by the weft yarn (Y) of aforementioned weft yarn guide pin (14); In described Weft-insertion nozzle (10), have:
A plurality of water routes trimmers (192) ring-type is configured in aforementioned weft yarn guide pin (14) the aforementioned water route (18) on every side and the current regulator (19) that constitutes;
In the aforementioned water route (18) in aforementioned a plurality of current trimmers (192) downstream, in the damping stream (173) that between the outer peripheral face of the inner peripheral surface of the taper hole (171) of aforementioned jet (20) undergauge and aforementioned weft yarn guide pin (14), forms from aforementioned current trimmer (192) one sides;
It is characterized in that,
The angle (θ) of aforementioned taper hole (171) is in 15 °～30 ° scope, meanwhile, the length (L) of the aforementioned current trimmer (192) on the carriage direction (R) of the weft yarn (Y) in aforementioned weft yarn guide pin (14) with respect to the diameter (d) of the endoporus (122) of aforementioned nozzle body (12) in 0.71 times～1.71 times scope.
2. the Weft-insertion nozzle in the water jet looms as claimed in claim 1 is characterized in that, the angle (θ) of aforementioned taper hole (171) is in 17 °～26 ° scope.
3. the Weft-insertion nozzle in the water jet looms as claimed in claim 2, it is characterized in that, the angle (θ) of aforementioned taper hole (171) in 20 °～25 ° scope, simultaneously the length (L) of aforementioned current trimmer (192) with respect to the diameter (d) of aforementioned endoporus (122) in 0.86 times～1.71 times scope.
4. the Weft-insertion nozzle in the water jet looms as claimed in claim 3 is characterized in that, the length (L) of aforementioned current trimmer (192) with respect to the diameter (d) of aforementioned endoporus (122) in 0.86 times～1.29 times scope.
5. the Weft-insertion nozzle in the water jet looms as claimed in claim 4 is characterized in that, the angle (θ) of aforementioned taper hole (171) is 25 °.
6. the Weft-insertion nozzle in the water jet looms, form water route (18) between the outer peripheral face of the weft yarn guide pin (14) of this nozzle in inserting nozzle body (12) and the inner peripheral surface of aforementioned nozzle body (12), by supplying with pressure (hydraulic) water to aforementioned water route (18), spray aforementioned pressure (hydraulic) water by jet (20), will lead latitude simultaneously with injection water by the weft yarn (Y) of aforementioned weft yarn guide pin (14); In described Weft-insertion nozzle (10), have:
A plurality of water routes trimmers (192) ring-type is configured in aforementioned weft yarn guide pin (14) the aforementioned water route (18) on every side and the current regulator (19) that constitutes;
In the aforementioned water route (18) in aforementioned a plurality of current trimmers (192) downstream, in the damping stream (173) that between the outer peripheral face of the inner peripheral surface of the taper hole (171) of aforementioned jet (20) undergauge and aforementioned weft yarn guide pin (14), forms from aforementioned current trimmer (192) one sides;
It is characterized in that,
The angle (θ) of aforementioned taper hole (171) is in 15 °～30 ° scope, and meanwhile, the length (L) of the aforementioned current trimmer (192) on the carriage direction (R) of the weft yarn (Y) in aforementioned weft yarn guide pin (14) is 5mm～12mm.
7. the Weft-insertion nozzle in the water jet looms as claimed in claim 6 is characterized in that, the angle (θ) of aforementioned taper hole (171) is in 17 °～26 ° scope.
8. the Weft-insertion nozzle in the water jet looms as claimed in claim 7 is characterized in that, the angle (θ) of aforementioned taper hole (171) is in 20 °～25 ° scope, and simultaneously, the length (L) of aforementioned current trimmer (192) is 6mm～12mm.
9. the Weft-insertion nozzle in the water jet looms as claimed in claim 8 is characterized in that, the length (L) of aforementioned current trimmer (192) is 6mm～9mm.
10. the Weft-insertion nozzle in the water jet looms as claimed in claim 9 is characterized in that, the angle (θ) of aforementioned taper hole (171) is 25 °.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP151525/1999 | 1999-05-31 | ||
| JP151525/99 | 1999-05-31 | ||
| JP11151525A JP2000336549A (en) | 1999-05-31 | 1999-05-31 | Weft insertion nozzle in water jet loom |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1275641A CN1275641A (en) | 2000-12-06 |
| CN1227397C true CN1227397C (en) | 2005-11-16 |
Family
ID=15520431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001087371A Expired - Fee Related CN1227397C (en) | 1999-05-31 | 2000-05-31 | Weft-insertion nozzle of water-jet loom |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2000336549A (en) |
| KR (1) | KR100371749B1 (en) |
| CN (1) | CN1227397C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003049342A (en) * | 2001-08-01 | 2003-02-21 | Tsudakoma Corp | Picking nozzle for fluid jet loom |
| JP3866088B2 (en) * | 2001-11-19 | 2007-01-10 | 津田駒工業株式会社 | Weft insertion nozzle of water jet loom |
| JP2003313754A (en) * | 2002-04-26 | 2003-11-06 | Tsudakoma Corp | Weft-inserting nozzle of water-jetting type loom |
| CN1321233C (en) * | 2002-12-10 | 2007-06-13 | 津田驹工业株式会社 | Pick-blowing nozzle for fluid jet loom and fluid jet loom |
| JP2004270080A (en) * | 2003-03-10 | 2004-09-30 | Toyota Industries Corp | Device for preventing falling-out of thread in jet loom |
| CN103668721A (en) * | 2013-12-29 | 2014-03-26 | 镇江东艺机械有限公司 | Weft yarn spraying nozzle |
| CN104532454A (en) * | 2015-01-26 | 2015-04-22 | 南通双弘纺织有限公司 | Weft insertion mechanism |
| CN107570331B (en) * | 2016-06-30 | 2020-11-03 | 山保工业株式会社 | Liquid dispensing nozzle |
| CN114855339B (en) * | 2022-05-05 | 2024-02-20 | 南通华鹏纺织有限公司 | Water-jet loom for chemical fibers and weaving method thereof |
-
1999
- 1999-05-31 JP JP11151525A patent/JP2000336549A/en active Pending
-
2000
- 2000-03-10 KR KR10-2000-0012022A patent/KR100371749B1/en active IP Right Grant
- 2000-05-31 CN CNB001087371A patent/CN1227397C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000336549A (en) | 2000-12-05 |
| KR100371749B1 (en) | 2003-02-11 |
| KR20010014563A (en) | 2001-02-26 |
| CN1275641A (en) | 2000-12-06 |
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| C06 | Publication | ||
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Granted publication date: 20051116 Termination date: 20190531 |