CN1453411A - Picking nozzle for water jet type loom - Google Patents

Picking nozzle for water jet type loom Download PDF

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Publication number
CN1453411A
CN1453411A CN03110384A CN03110384A CN1453411A CN 1453411 A CN1453411 A CN 1453411A CN 03110384 A CN03110384 A CN 03110384A CN 03110384 A CN03110384 A CN 03110384A CN 1453411 A CN1453411 A CN 1453411A
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CN
China
Prior art keywords
rectification
nozzle
weft insertion
water jet
insertion nozzle
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Granted
Application number
CN03110384A
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Chinese (zh)
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CN1296540C (en
Inventor
服部恒一
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Tsudakoma Corp
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Tsudakoma Industrial Co Ltd
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Publication of CN1453411A publication Critical patent/CN1453411A/en
Application granted granted Critical
Publication of CN1296540C publication Critical patent/CN1296540C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • 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
    • 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
    • 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 insert nozzle for water jet loom has a straightening part for straightening the pressure water for inserting weft, wherein the straightening part is formed of a corrosion-resistant material with a hardness of HV320-750 so that the breakage of the straightening walls under the conditions of high-speed and high water pressure weaving can be prevented.

Description

The Weft insertion nozzle of water jet loom
Technical field
The present invention relates to be used for the Weft insertion nozzle of water jet loom, relate to especially and having in order to picking is carried out the Weft insertion nozzle of the rectification part of rectification with pressure (hydraulic) water.
Background technology
The Weft insertion nozzle that is used for water jet loom generally has several rectifier tanks and continuously in this rectification part of throttling stream, is configured in to supply with between the jet of picking with the annular chamber of pressure (hydraulic) water and pressure (hydraulic) water.This Weft insertion nozzle, its main purpose are to prevent that rectification part from wearing and tearing because of the injection of pressure (hydraulic) water, especially prevent to form the wearing and tearing of the rectification wall of rectifier tank.
As such Weft insertion nozzle, in order to prevent that rectification part from wearing and tearing because of pressure (hydraulic) water sprays, rectification part should be H by having hardness at least for it RA85 (HV900) or H RCorrosion resistant material such as the superhard alloy of the above hardness of A90, cermet (cermet), pottery form (for example, special fair 4-18053 number of Japan Patent, spy open flat 4-11048 number).
Formerly, the rectification part of Weft insertion nozzle is to heal height better with hardness, and only considers mar proof and corrosion resistance.The rectification part that forms with the corrosion resistant material of above-mentioned high rigidity is not have too big problem on the loom of 800rpm to 1000rpm to produce at rotating speed.
, as the above-mentioned Weft insertion nozzle that has with the corrosion resistant material formation of high rigidity, make loom more speed (for example, 50kgf/cm by increasing the pressure of picking with fluid 2More than reach more than the 1000rpm) when turning round, then rectification stably.
Just, when loom is run up, though need increase the pressure of picking with fluid, but owing to previous have high strength and corrosion proof nozzle is crossed to crisp firmly, when surpassing 1000rpm, need increase under the condition of hydraulic pressure by revolution, the rectification wall of rectification stream (being commutator segment) can form fine defective because of the current of high pressure, then can break when more serious.
Summary of the invention
The objective of the invention is under the weaving condition of high-speed and high hydraulic pressure, to prevent the breakage of rectification wall.
Relevant Weft insertion nozzle of the present invention is to have the rectification part of carrying out rectification with pressure (hydraulic) water in order to picking on the jet next door, and this rectification part is that HV320 to HV750 (then is equivalent to H if convert with hardness RC32 to H RC65) corrosion resistant material forms.
As has a corrosion resistant material of above-mentioned hardness range, because of Weft insertion nozzle as water jet loom, must have two functions of ABRASION RESISTANCE and resistance to impact concurrently, so form the Weft insertion nozzle of rectification part by this class material, under high hydraulic pressure and high-speed weaving condition, even go through the shape that long use also can be kept the initial stage, but and the picking of stable for extended periods of time.
Just, the characteristic of the Weft insertion nozzle of water jet loom mainly contains three: corrosion resistance (being difficult for getting rusty), mar proof (being directly proportional with hardness) and resistance to impact (being inversely proportional to hardness).When the present invention is conceived to adopt the superior high hardness material of mar proof, toughness (viscosity) reduces, and thereby make resistance to impact not good, its result then produces defective or breakage, owing to adopt the corrosion resistant material that has as above-mentioned hardness range, and have mar proof and two characteristics of resistance to impact concurrently.
Above-mentioned rectification part also can be formed by the sub-rectification of the ring-type that is configured in nozzle body.Like this, rectification part and nozzle body can be made respectively,, be made nozzle body, Weft insertion nozzle is processed easily with other material so make sub-rectification to have as the corrosion resistant material of above-mentioned hardness range.
Above-mentioned corrosion resistant material can be stainless steel.Making like this, stainless steel has more toughness than agglomerated materials such as pottery, cermet, supersteel alloys, so rectification wall cracky not.
Above-mentioned rectification part, can have several rectifications of extending at the circumferencial direction of the inner peripheral surface of its ring-type across at interval radial direction and axis direction in this rectification part, have simultaneously adjacent rectification wall and between towards formed several rectification streams of inner face.Make like this, the sub-rectification on the adjacent circumferential direction links into an integrated entity at the peripheral part of rectification part, is unlikely raising hardness and also is unlikely reduction toughness, more increases the especially intensity of rectification wall of rectification part.
Above-mentioned rectification part can have at the continuous throttling stream of the downstream of this rectification stream.Make like this, then increase the coaxial degree of actual rectification, improve rectification effect or reduce between part error etc., and accurate nozzle function is improved more with zone and restriction.
Description of drawings
Fig. 1 represents an enforcement illustration of Weft insertion nozzle of the present invention, is the oblique view of critical piece;
Fig. 2 is the cutaway view of Weft insertion nozzle shown in Figure 1;
Fig. 3 represents that one of the used sub-rectification of Weft insertion nozzle shown in Figure 1 implements illustration, the figure that is looked from the annular chamber side;
Fig. 4 is the initial stage figure that is used for illustrating the wearing and tearing of rectification wall in comparative test;
Fig. 5 is used for illustrating the damage state based figure of sub-rectification in comparative test;
Fig. 6 is used for illustrating the damage state based figure of sub-rectification in other comparative test.
The specific embodiment
Referring to figs. 1 through Fig. 3, in Weft insertion nozzle 10 explanation afterwards, conduct is used weft yarn with the Weft insertion nozzle that pressure (hydraulic) water sprays on the water jet loom.
Weft insertion nozzle 10 comprises: nozzle body 12 cylindraceous; The needle-valve 14 of coaxial insertion nozzle body 12; And the sub-rectification 16 of the ring-type in nozzle body 12 with nozzle body 12 and needle-valve 14 arranged coaxial.Weft insertion nozzle 10 is screwed together in the nut 18 of nozzle body 12 from fluid ejection side (front), by being that nozzle fixture 20 is supported with nozzle connection.
Nozzle body 12 has at one end the accommodation hole 22 of (rear end) side opening, and is communicated with accommodation hole 22 and in the lid hole 24 of the other end (front end) side opening, and coaxial each other.Accommodation hole 22 and lid hole 24 have the former diameter dimension circular cross-sectional shape greater than latter's diameter dimension.
Nozzle body 12, the endless groove that has the fluid flowing path 26 of coaxial connection nozzle fixture 20 in addition at outer peripheral face, have several that be connected with endless groove 28 and accommodation hole 22 and give water hole 30, with keep equal angles at interval the mode of (etc. pitch) around nozzle-axis (2 positions that are same as weft yarn 42 in the drawings).
Needle-valve 14 has the pedestal part 32 from the accommodation hole 22 of the coaxial insertion nozzle body 12 of rear end side; From the pedestal part 32 coaxial oblique portions 34 that extend front; And the thread guide eyelet 36 of coaxial break-through axle center part, be assembled on the nozzle body 12 with nut 38 in the rear end side of pedestal part 32.
Pedestal part 32 has roughly the circular section shape with accommodation hole 22 same diameter sizes.Needle-valve portion 34, the diameter dimension that forms its outer peripheral face towards front end reduce gradually thin thin cylindric.The outer peripheral face of needle-valve portion 34, its effect are the outsides 40 as the guiding current.
Thread guide eyelet 36, if allow that weft yarn 42 can pass through along nozzle-axis, then the axle center part of break-through needle-valve 14 is on the moving direction (guide direction) of weft yarn 42.The rear end side outer peripheral face of needle-valve portion 34 forms annular chamber 44 jointly with the inner peripheral surface of accommodation hole 22.Give water hole 30 at annular chamber 44 openings.
Sub-rectification 16 is made of the single annular component that is configured between annular chamber 44 and the lid hole 24, and the leading section of needle-valve portion 34 has the reach through hole in the coaxial break-through of axle center part in addition.Sub-rectification 16 is formed jointly by heal ring-type stream that the downstream more reduces and the outer peripheral face 40 of needle-valve portion 34 of flow path cross sectional area, and the current of high pressure are quickened because of throttling.
The reach through hole of sub-rectification 16 has rectification part, and is provided with radial several rectification walls (being commutator segment) 46 inwardly in annular chamber 44 sides; And ring-type restriction 48, be not provided with rectification wall 46 in this rectification part to covering hole 24 sides.
Between the rectification wall 46 that circumferencial direction is adjacent, as rectification stream 50, its effect is the rectification pressure (hydraulic) water.Each rectification stream 50 is formed by the adjacent rectification wall 46 of circumferencial direction and towards inner face 52.Each rectification stream 50 is open in annular chamber 44.
Each rectification stream 50 towards inner face 52, have the inclined plane of predetermined angular with nozzle-axis, the depth dimensions that makes rectification stream 50 is in that more front (jet 56 sides) is then bigger.Therefore, connect as one, compress gradually and quicken through the current of over commutation stream 50 in addition at the peripheral part of the adjacent rectification wall 46 of Zhou Fangxiang by sub-rectification 16.
Restriction 48 is the parts that form the ring-type stream, and the current of throttling high pressure quicken it in addition, play so-called throttling stream.
Rectification wall 46, around nozzle-axis with equal angles at interval (etc. pitch) extend the direction of nozzle-axis, extend the inboard of radial direction simultaneously towards nozzle-axis 58 from the inner peripheral surface of reach through hole.
Between needle-valve 14 and nozzle body 12, and between nozzle body 12 and the nozzle fixture 20, dispose O shape ring 54 more than 1 respectively and make its maintenance airtight or liquid is close.With restriction 48 foremost as the jet 56 of current.
The ring-type inner peripheral surface of restriction 48 and the outside 40 of needle-valve portion 34, in boundary position (be the position of jet 56) the formation concentric circles of sub-rectification 16 with lid hole 24, and when seeing, form the jet 56 of ring-type from front (Warp opening side) in this position, boundary thus.
Jet 56 discharges current from reach through hole, especially discharge from the throttling adjacent to the rectification stream 50 of 46 on circumferencial direction rectification wall, is injected in weft yarn 42 and covers on the hole 24.Thread guide eyelet 36 is also in the position, boundary in sub-rectification 16 and lid hole 24, forms the round shape concentric with the outer peripheral face 40 of the inner peripheral surface of sub-rectification reach through hole and spray nozzle part 34.
The current of high pressure, from the fluid flowing path 26 of high-pressure fluid source via nozzle fixture 20, the endless groove 28 of distributing nozzle body 12 imports annular chamber 44 for water hole 30 from endless groove 28 via several, imports the reach through hole of commutator 16 again from annular chamber 44.
Import the current of reach through hole of sub-rectification 16 from annular chamber 44, import the current of the rectification stream 50 of 46 on rectification wall, by being the current of no sinuous flow by 46 rectifications of rectification wall when the rectification stream 50.By the rectification effect that rectification wall 46 is brought, be that the more rectification effect is then bigger for the quantity of rectification wall 46.
Import the current of rectification stream 50, in addition, in the rectification stream 50 that flow path cross sectional area more more reduces toward downstream (front), rectification margin knot in limit flows, makes it to quicken.The degree of quickening is because of variant towards the different situations such as angle of 52 pairs of nozzle-axis of inner face.
The current of rectification and acceleration in rectification stream 50 are from the current interflow of its outer circumferential side and rectification stream 50 inboards.The current at interflow are converted to the current of cross section circle in restriction 48, and with its state from continuously at the jet 56 of restriction 48, be injected in weft yarn 42 and cover on the hole 24.And thus, the jet water course from jet 56 sprays at the water flow jet mouth 56 of ring-type, discharges from the throttling of sub-rectification 16 and needle-valve portion 34, and discharges from pressurized state.
The weft yarn 42 of break-through thread guide eyelet 36 keeps the continuous certainly jet water course state that is sprayed at the water flow jet mouth 56 of restriction 48, by its jet water course carrying, and advances fast in Warp opening.
The stainless corrosion resistant material with HV320 to HV750 hardness is adopted in sub-rectification 16, and utilizes discharge processing steel are carried out machining and to make.
Corrosion resistant material with such hardness range has as the required mar proof that has concurrently of the Weft insertion nozzle of water jet loom and two functions of resistance to impact.Thereby, use Weft insertion nozzle 10, at 50kgf/cm with the sub-rectification 46 of this corrosion resistant material manufacturing 2More than and under above high hydraulic pressure of 1000rpm and the high-speed weaving condition,, and can keep deciding quietly picking for a long time even long-term use also can be kept the shape at initial stage.[comparative test example]
Have above-mentioned effect, the effect that the sub-rectification 16 of the corrosion resistant material manufacturing of HV320 to HV750 hardness is brought into play for employing, below adopt the actual machine result of the test to be illustrated.
Experimental condition is that to weave width be that the loom of 190cm turns round continuously with the speed of 1000rpm, and picking is 50kgf/cm with the hydraulic pressure of fluid 2Sub-rectification is made same shape, size etc. except the hardness difference.[the 1st comparative example] When HV300 is following
During as the material of sub-rectification,, confirm to have wearing and tearing to cause the attenuation of rectification wall the stainless steel of HV280 and HV290, also see the wearing and tearing of rectification wall when serious with the continuous running of a year and a half.
Wearing and tearing initial stage state when Fig. 4 represents HV280, Fig. 5 represents the example of rectification wall breakage.
This is that the stickiness of material itself is big owing to the material of these hardness below HV300, and the hardness deficiency, so wearing and tearing easily.[the 2nd comparative example] When HV1000 is above
When (1) cermet that uses HV1000 was as the material of sub-rectification, rectification stream quantity (cutting apart number) was for less
8 to 14 o'clock, then do not have function, the rectification number is that more 16 to 18 o'clock rectification walls then can be damaged.[the 3rd comparative example]
When (2) to adopt the supersteel nickel of HV1250 be alloy as the material of sub-rectification, with the continuous running of 2 years,
In 5 nozzle samples, the rectification wall breakage of 2 nozzle samples is arranged.[the 4th comparative example] When HV800 is above
When adopting the stainless sub-rectification of HV810 and HV830, damaged rectification wall.The state of rectification wall breakage when Fig. 6 represents to adopt HV810.[the 1st test example] During HV320 to HV750
2 kinds of stainless steels that adopt HV320 and HV750 are during as the material of sub-rectification, and it turns round in all between 2 years halfs continuously, also can not produce breakage.[the 2nd test example]
Make sub-rectification with the stainless steel of HV660, by the Weft insertion nozzle that uses this sub-rectification, with the loom of 190cm with rotation number 1200rpm and 100kgf/cm 2Condition running, knit and made the nylon taffeta, but the breakage that does not produce the rectification wall.
As above-mentioned test example, when the rectification part with rectification stream 50 is formed by the independently sub-rectification 16 from nozzle body 12, because can make nozzle body 12 and rectification part in addition individually, so can make sub-rectification 16 with above-mentioned corrosion resistant material with hardness range, also can make nozzle body 12, make the processing Weft insertion nozzle become easy with other material.But also rectification part can be formed with nozzle body portion.
The material of sub-rectification 16 is not limited in stainless steel, and all other corrosion resistant materials with above-mentioned hardness range can.
The present invention is not limited to the foregoing description, so long as do not break away from its aim, can do all changes.
Drawing reference numeral illustrates that 10 Weft insertion nozzles, 12 nozzle bodies, 14 needle-valves, 16 sub-rectification 20 nozzle fixtures 22 accommodation holes, 24 lid holes, 26 fluid flowing paths, 28 endless grooves 30 encircle 56 nozzles, 58 nozzle-axis to water hole 32 pedestal part, 34 needle-valve sections 36 guide eyelits, 38 nuts, 40 outsides, 42 weft yarns, 44 annular chamber, 46 rectification walls, 48 restriction, 50 rectification streams 52 towards inner face 54O shape

Claims (5)

1. the Weft insertion nozzle of a water jet loom is characterized in that, has the rectification part of carrying out rectification with pressure (hydraulic) water in order to picking on the jet next door, and described rectification part is to be the corrosion resistant material formation of HV320 to HV750 with hardness.
2. the Weft insertion nozzle of water jet loom as claimed in claim 1, it is further characterized in that, described rectification part is that the sub-rectifier by the ring-type that is configured in nozzle body forms.
3. the Weft insertion nozzle of water jet loom as claimed in claim 1, it is further characterized in that described corrosion resistant material is a stainless steel.
4. the Weft insertion nozzle of water jet loom as claimed in claim 1, it is further characterized in that, described rectification part has at the circumferencial direction of the inner peripheral surface of its ring-type across several rectification walls that at interval radial direction and axis direction in this rectification part extends, and has simultaneously by adjacent rectification wall and several rectification streams that form towards inner face between it.
5. the Weft insertion nozzle of water jet loom as claimed in claim 4, it is further characterized in that, described rectification part has continuously the throttling stream in the downstream of described rectification stream.
CNB031103847A 2002-04-26 2003-04-08 Picking nozzle for water jet type loom Expired - Fee Related CN1296540C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002125709A JP2003313754A (en) 2002-04-26 2002-04-26 Weft-inserting nozzle of water-jetting type loom
JP2002125709 2002-04-26

Publications (2)

Publication Number Publication Date
CN1453411A true CN1453411A (en) 2003-11-05
CN1296540C CN1296540C (en) 2007-01-24

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CNB031103847A Expired - Fee Related CN1296540C (en) 2002-04-26 2003-04-08 Picking nozzle for water jet type loom

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KR (1) KR100462810B1 (en)
CN (1) CN1296540C (en)
TW (1) TWI244516B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104711749A (en) * 2015-04-07 2015-06-17 苏州市晨彩纺织研发有限公司 Reducing type sprayer of water-jet loom
CN106012245A (en) * 2016-07-28 2016-10-12 吴江金叶织造有限公司 Main nozzle for air-jet loom

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200471625Y1 (en) 2012-01-19 2014-03-10 최찬섭 A Nozzle for water-jet loom
CN103696102A (en) * 2013-12-29 2014-04-02 镇江东艺机械有限公司 Weft jetting device of water jet loom

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS177429B1 (en) * 1974-04-23 1977-07-29
JPH0665777B2 (en) * 1987-11-11 1994-08-24 日本タングステン株式会社 Manufacturing method of auxiliary nozzle for air jet loom
JPH0219546A (en) * 1988-07-01 1990-01-23 Nippon Tungsten Co Ltd Water jet nozzle for loom
CH679587A5 (en) * 1989-08-25 1992-03-13 Rieter Ag Maschf
JPH0411048A (en) * 1990-04-24 1992-01-16 Nippon Tungsten Co Ltd Structure of nozzle part in water jet nozzle for weaving machine
JPH08260295A (en) * 1994-11-02 1996-10-08 Hokuriku Seikei Kogyo Kk Structure of nozzle part in water jet nozzle for loom
JP2000336549A (en) * 1999-05-31 2000-12-05 Toyota Autom Loom Works Ltd Weft insertion nozzle in water jet loom

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104711749A (en) * 2015-04-07 2015-06-17 苏州市晨彩纺织研发有限公司 Reducing type sprayer of water-jet loom
CN106012245A (en) * 2016-07-28 2016-10-12 吴江金叶织造有限公司 Main nozzle for air-jet loom

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Publication number Publication date
KR20030084566A (en) 2003-11-01
TWI244516B (en) 2005-12-01
TW200305669A (en) 2003-11-01
KR100462810B1 (en) 2004-12-23
JP2003313754A (en) 2003-11-06
CN1296540C (en) 2007-01-24

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