CN101845700A - The injection nozzle that is used for air-jet loom with weft retaining means - Google Patents
The injection nozzle that is used for air-jet loom with weft retaining means Download PDFInfo
- Publication number
- CN101845700A CN101845700A CN201010176681A CN201010176681A CN101845700A CN 101845700 A CN101845700 A CN 101845700A CN 201010176681 A CN201010176681 A CN 201010176681A CN 201010176681 A CN201010176681 A CN 201010176681A CN 101845700 A CN101845700 A CN 101845700A
- Authority
- CN
- China
- Prior art keywords
- injection nozzle
- cilium
- spray boom
- matrix
- mane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002347 injection Methods 0.000 title claims description 18
- 239000007924 injection Substances 0.000 title claims description 18
- 239000007921 spray Substances 0.000 claims abstract description 40
- 239000011159 matrix material Substances 0.000 claims abstract description 20
- 210000004081 cilia Anatomy 0.000 claims abstract description 16
- 230000000149 penetrating effect Effects 0.000 claims abstract 5
- 241000282414 Homo sapiens Species 0.000 claims 1
- 238000003780 insertion Methods 0.000 description 8
- 230000037431 insertion Effects 0.000 description 8
- 238000011144 upstream manufacturing Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000004744 fabric Substances 0.000 description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical class C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 5
- 210000004240 ciliary body Anatomy 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009182 swimming Effects 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- 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
- D03D47/3006—Construction of the nozzles
- D03D47/3013—Main nozzles
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
- Treatment Of Fiber Materials (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The application discloses the nozzle that is used for weft yarn in air-jet loom, comprise at least one spray boom (4), this spray boom (4) extends from corresponding matrix (3), matrix has penetrating via, pass this penetrating via and can form compressed air stream, the cilium device (31,32) that is inserted in the described matrix (3) has the central space that is used for described compressed air stream.
Description
Technical field
The present invention relates to a kind of improvement injection nozzle that is used for air-jet loom.
Background technology
As everyone knows, utilizing loom to weave needs a series of horizontal weft yarns are introduced in one group of parallel warp thread, and the pattern according to different and default utilizes loom to open the yarn of shearing.When each wefting insertion, by reed weft yarn is got on the fabric that is forming, and repeated this circulation with very high speed, reach 1200-1500 strike of per minute.
Weft yarn is introduced in the warp thread shed open has multiple technologies to realize.In air-jet loom, utilize air flow to blow weft yarn and carry out wefting insertion, this air flow is to spray by the suitable injection nozzle in warp thread shed open porch; Be provided with extra relay nozzle along the warp thread shed open, the air flow of ejection makes weft yarn advance towards the shed open outlet on the opposite side of loom.
Fig. 1 has schematically shown the device of preparing wefting insertion in the loom.Can clearly be seen that weft yarn is drawn from the yarn tube, pass pre-metering (PREMETER) cylinder, enter prenozzle, then enter main burner.From described main burner, by the suitable control of compressed air stream, weft yarn is introduced the warp thread shed open and is come out up to its opposite side from loom.In order to allow weft yarn and bobbin disconnect and to stay in the fabric, in a single day wefting insertion finishes fully, and just cut off at the entrance side weft yarn of correspondence: a new line end has just formed, and it can be introduced in next one circulation once more.
This structure is fit to single weft yarn and repeats (but the color of weft yarn, type, differences such as number) according to the quantity of the weft yarn that can make synchronously on identical loom, makes identical loom reach synchronous.Yet,, need all spray site (just all nozzles) that blow weft yarn are arranged in the very little zone in order to reach the functional requirement of loom.Therefore, on real standard, final at least injection apparatus generally includes suitable complicated assemblies, and it comprises a plurality of spray booms, and making independently by spray boom, weft yarn links to each other.In Fig. 2 and 3, show this multiinjector combination that to handle four weft yarns in the prior art and the situation of decomposing respectively.
In fact, main block 1 has a series of pedestal 1a with convergent axle.Promptly with respect to the upstream side of airflow direction, insert some corresponding pins 2 at entrance side in the inside of this base, described pin 2 is the device that is configured to suitably guide air flow and weft yarn.At outlet side, in the pedestal 1a of block, be combined with the matrix 3 of linear spray boom 4, these linear spray booms are to they being assembled at the head anchor clamps 5 that openend keeps closely linking to each other.Each spray boom 4 roughly is hollow bushing-like, and matrix 3 has the diameter of increase, with pedestal coupling suitable and block 1.
The problem that influences this type configuration is to keep weft yarn correctly to be incorporated in the nozzle, promptly avoids yarn to come out from the upstream of pin.In fact, in the wefting insertion process, have only dynamic gas pressure could keep yarn to tighten and correct introducing; Thereby when fibrous material finished to be cut off at wefting insertion, its elastic recovery may cause that the fibrous material free end emerges and come the back of needle tubing along spray boom.Yarn swimming out of from nozzle causes loom to stop and introducing yarn once more, causes productivity ratio to reduce so inevitably, and expense increases and possible fabric defects.
This shortcoming is particularly evident when using elastomeric yarn.
In order to address this problem, two kinds of diverse ways are arranged traditionally.
A kind of is to provide a series of actuators (electronic or, be generally pneumatic) to the nozzle block, and described actuator turns round between the main body of spray boom and needle tubing, and provides a grasping system to be easy to the mechanical grip weft yarn.
This system's specific embodiment of the prior art has detailed description in Fig. 2 and 3.Can see that on main block 1, laterally pedestal 10 has grabbing device 11, described grabbing device has multiple control modes, for example controls by pneumatic circulation.
This pattern is more effective, because it can keep weft yarn safely, and avoids weft yarn swimming out of in the nozzle upstream side.Yet, conceivablely be, it is very expensive, because it makes reliable actuator with the upper frequency operation (in fact, grasping system must be to decontrol weft yarn with the number of times frequency identical, that reach 25Hz of per minute wefting insertion when spraying, and after cut-out, catch it), in addition, it is also synchronous to make drive chain and loom main drive.This system also needs a lot of maintenances.
Second method is to use a kind of at aerojet continuous in the spray boom when shutting down (in operation process and).Dynamic gas pressure returns and removes except allows weft yarn sprays, can also stop to occur weft yarn when cutting off when discharging weft yarn from the weft yarn feeder.
Yet this pattern can cause other shortcoming.In fact, except the expense relevant with compressed-air actuated high flow rate, the fabric fibre of continuous air flow meeting negative effect numerous species.For example, the yarn the most responsive to air pressure is so-called " Bao Xin " stretch yarn (it has a cotton yarn and adds a stretch yarn), perhaps low twist " ring ingot " yarn (twist K is less than 4), again or be fancy " ring ingot " strand.In fact, these yarns are when being kept by the weft yarn feeder, and air flow flows through from these yarns, can cause the untwisting effect, just, unclamp the weaving twist that keeps the yarn cohesion, cause disadvantageous abrasive effect.
EP2014808 has disclosed a kind of tube element that is arranged in the aerojet passage.The trailing edge of tube element has the recess of some, and these recesses limit a plurality of corresponding projectioies.Yet this depends on the solution of the tapered protrusion of rigidity, does not provide satisfied result, even because weft yarn also is wrapped in the recess easily under the situation that the air flow of routine forms once more.In addition, the recess sharp edges may cause the damage of yarn.At last, when operate to obtain better projection in the hole of using taper, will produce the noticeable wear of high pressure loss and yarn.
Therefore, the objective of the invention is to address the above problem, propose weft yarn a kind of innovation, in injection nozzle and keep system.
Summary of the invention
This purpose is by reaching as the described device of inner characteristic in claims.
Especially, according to main aspect of the present invention, air-jet loom has the injection nozzle that is used to spray weft yarn, this injection nozzle comprises at least one spray boom, and this spray boom is outstanding from corresponding matrix, and matrix has through hole, in described through hole, form compressed air stream, wherein, described matrix ciliation device, and this cilium device has and is used for compressed-air actuated central space.
According to another aspect of the present invention, the cilium device is configured as the capillatus lint bundle tubular support of projection thus.
According to further aspect of the present invention, the cilium device that is used for the air-jet loom nozzle includes tubular portion, and a plurality of flexible needle-like devices are outstanding from the trailing edge of described tubular portion along the longitudinal axis of tubular portion.
Description of drawings
According to the further feature and the advantage of device of the present invention, will significantly be embodied from following identical DETAILED DESCRIPTION OF THE PREFERRED, in the accompanying drawing of correspondence with for example and illustrated mode provide, wherein:
Fig. 1 is used for spraying the schematic diagram that the nozzle of weft yarn is operated at weaving loom;
Fig. 2 is an illustrative multi-jet perspective view in the prior art;
Fig. 3 is a multi-jet exploded view shown in Figure 2;
Fig. 4 is the side-looking exploded view according to spray boom of the present invention; With
Fig. 5 is the part decomposition diagram according to the matrix of spray boom of the present invention.
The specific embodiment
Spray nozzle device according to spray nozzle device of the present invention and prior art has quite similar structure, thereby, in prior art system and loom, can replace fully.Do not having actuator on the body of determining: thus avoided fully the loom master drive and nozzle between any additional control.
In addition, according to the present invention, have tubular support 31 in the matrix 3 of spray boom 4, tubular support 31 is told flexible lint bundle or is organized mane 32 more thus.Can find out clearly that from Fig. 5 mane 32 distributes on the trailing edge circumference in supporter 31 downstreams, and extend along the longitudinal axis in the nozzle duct of matrix 3 basically that promptly the longitudinal axis along spray boom 4 extends.
Preferably, mane 32 is not to be parallel to spray boom 4 longitudinal axis fully, but slightly assembles mutually, for example at 8 ° to 12 °, and preferably 10 °, so that part is dwindled that interval.
The tubular support 31 that is provided with mane 32 forms a ciliary body, and this ciliary body is arranged on the inside of spraying matrix 3, and has the duct, inside with the nozzle-axis coaxial line.
According to preferred illustrated embodiment, the matrix 3 of each spray boom 4 is configured as hollow cylinder 33, becomes an integral body with the sleeve of spray boom 4, and it can combine with cylindrical core 34, and described core has through hole longitudinally.
By suitably determining the size of core 34 and hollow cylinder 33, can use according to spray boom of the present invention, this spray boom has the ciliary body that is arranged in the conventional main block 1, and air-jet loom has had this main block 1, needn't implement any change.
In case the matrix 3 of spray boom 4 is inserted in the main block 1, the jet airstream that flows out from syringe 1 passes the medium pore canal of core 34, then passes the medium pore canal of tubular support 31, flows through the gap between the mane 32, freely enters spray boom 4 again.
Research by the applicant implements even can determine the mode of mane 32 with mutual convergence is provided with, does not have sizable load loss to produce yet.
Also detect: even mane 32 is assembled convergence so that excessively hindered central space in inactive state very much, at the weft yarn injection phase, air pressure can spread apart flexible mane, so does not have disadvantageous blocking between yarn and the mane.
On the contrary, in case air flow interrupts, the existence of mane is exactly an effective tool of avoiding weft yarn upstream to move.In fact, look up from party upstream that they have formed yarn and can twine thereon a plurality of ends that spread apart easily.And because the flexibility effect of thin mane, weft yarn also can produce entanglement (compare with original straight shape, mane has become curved) because of the strain of mane.Like this, after the beating operation of loom,, then can produce cleaning effect easily in case form the air flow of rule; In fact, air flow makes mane recover its rectilinear form, easily to discharge weft yarn.
In fact, for the very large yarn of elasticity, the interruption of air does not cause the wearing and tearing of upstream weft yarn.In fact, described weft yarn returns the coiling that tends to form minimum, this coiling causes the direct entanglement with mane 32: so the free end of weft yarn still is stuck in the downstream of mane 32, and inside at spray boom 4, prepare to spray once more, and can when compressed air stream recovery subsequently, on fabric, not cause defective.
Allow to use pulsation air flow and wefting insertion demand synchronous like this, therefore can not cause weft yarn to damage and untwisting.Meanwhile, although do not use actuator, the weft yarn loss that nozzle sets causes also can effectively be stoped, so cost is very low.
The downstream of cilium device does not have the pressure loss of essence.
Therefore, the default target in front is fabulous as to have reached.
The simplification of the cilium device that in addition, the front proposed and compactedness can exchange device of the present invention mutually with any already present composite nozzle.In fact, can replace any already present spray boom, not need to consider maintenance system, not need to change other device in preceding use according to the spray boom of ciliation device of the present invention.
Yet, be understandable that, the invention is not restricted to above-mentioned specific embodiment, this embodiment only is the non-limitative example in the scope of the invention, in addition, under situation about not breaking away from by the additional invention scope that claim limited, those skilled in the art can make numerous variations to the foregoing description.
Especially, the element with mane that is defined as the cilium device is not strict need being made of the single yarn of many groups flexibility.Otherwise it can comprise flexible thin, little metal needle or flexible cilium; Moreover whole brush body 31,32 can be the individuality that a shape looks like not have the basket of bottom, has the slightly tapered wall that is formed by little net.In fact, the air flow of advancing in the subtend downstream does not produce any obstruction, but any cilium device that the flexible spicule of a plurality of entanglement of advancing in the subtend upstream limits all drops in the inventive principle of setting forth above (here in order neither to produce great load loss, also can not cause significant wearing and tearing to weft yarn in course of injection).
Claims (10)
1. a kind of weft yarn injection nozzle that is used for air-jet loom, it comprises at least one spray boom (4), this spray boom (4) extends from corresponding matrix (3), matrix has penetrating via, pass this penetrating via and can form compressed air stream, it is characterized in that the cilium device (31,32) with central space is inserted in the described matrix (3), described central space is used for described compressed air stream.
2. injection nozzle as claimed in claim 1, wherein, the described matrix (3) of spray boom (4) comprises hollow cylinder (33), cylindrical core (34) is easy to be introduced in the described hollow cylinder, described core has penetrating via longitudinally, and described cilium device is arranged between described core (34) and the described hollow cylinder (33).
3. injection nozzle as claimed in claim 1 or 2, wherein said cilium device forms the tubular support (31) with mane (32).
4. injection nozzle as claimed in claim 3, the axis projection of wherein said mane (32) from described tubular support (31) downstream trailing edge along this tubular support.
5. injection nozzle as claimed in claim 4, wherein, described mane (32) is assembled mutually.
6. as one of above-mentioned claim described injection nozzle, wherein, the described matrix (3) of spray boom (4) combines with the outlet base of a main block (1), at the opposition side of described outlet base, has the inlet base that combines with pin (2).
7. injection nozzle as claimed in claim 6, wherein said main block (1) has a plurality of spray booms (4), and the respective openings end of spray boom (4) is assembled mutually.
8. be used for cilium device as the described injection nozzle of one of above-mentioned claim, it is characterized in that, described cilium device includes tubular portion (31), the trailing edge projection of a plurality of flexible needle-like devices (32) along the longitudinal axis of tubular portion from described tubular portion (31).
9. cilium device as claimed in claim 8, wherein said flexible needle-like device is many bunches of manes (33).
10. an air-jet loom is characterized in that, comprises as each described nozzle of above-mentioned claim and cilium device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000336A ITMI20090336A1 (en) | 2009-03-06 | 2009-03-06 | LAUNCHING NOZZLE WITH WEAVING CHECKS FOR A TEXTILE FRAME WITH AIR. |
| ITMI2009A000336 | 2009-03-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101845700A true CN101845700A (en) | 2010-09-29 |
| CN101845700B CN101845700B (en) | 2014-11-12 |
Family
ID=41100729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010176681.9A Active CN101845700B (en) | 2009-03-06 | 2010-03-05 | Launch nozzle with weft retaining means for a pneumatic weaving loom |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2226416B1 (en) |
| CN (1) | CN101845700B (en) |
| IT (1) | ITMI20090336A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6024536B2 (en) * | 2013-03-15 | 2016-11-16 | 株式会社豊田自動織機 | Main nozzle of air jet loom |
| CN104164735B (en) * | 2014-08-08 | 2015-08-19 | 浙江理工大学 | A kind of air inlet curl and the continuously adjustable main nozzle of jet loom of charge flow rate |
| JP6137133B2 (en) * | 2014-11-18 | 2017-05-31 | 株式会社豊田自動織機 | Main nozzle of air jet loom |
| CN106637604A (en) * | 2016-11-17 | 2017-05-10 | 曹才基 | Structure and making method of novel air jet loom auxiliary nozzle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0342135A1 (en) * | 1988-05-10 | 1989-11-15 | S.A. Saurer Diederichs | Weft suction and retaining device for weaving machines using jet weft inserting |
| US5697405A (en) * | 1995-03-29 | 1997-12-16 | Lindauer Dornier Gesellschaft Mbh | Weft thread insertion nozzle |
| CN2578357Y (en) * | 2002-07-22 | 2003-10-08 | 广东溢达纺织有限公司 | Jet loom with palm fibre bundle on series nozzles |
| CN101210361A (en) * | 2006-12-28 | 2008-07-02 | 苏尔特克斯股份公司 | Weft insertion device and method |
| CN101358405A (en) * | 2007-06-27 | 2009-02-04 | 津田驹工业株式会社 | Weft insertion nozzle and weft-fall-out preventing component used in weft insertion nozzle |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51124159U (en) * | 1975-03-20 | 1976-10-07 | ||
| EP1552048B1 (en) | 2002-09-18 | 2007-03-14 | Lindauer Dornier Gesellschaft M.B.H | Method for holding a weft yarn, jet weaving machine comprising a clamping device for the weft yarn, particularly serving to carry out this method, and cartridge provided in the form of an exchangeable modular unit for placing inside the mixing tube of a jet weaving machine |
| DE502005010656D1 (en) * | 2005-11-25 | 2011-01-20 | Itema Switzerland Ltd | Apparatus and method for introducing weft threads |
| JP2007177341A (en) * | 2005-12-27 | 2007-07-12 | Tsudakoma Corp | Weft-inserting nozzle of fluid jet loom |
-
2009
- 2009-03-06 IT IT000336A patent/ITMI20090336A1/en unknown
-
2010
- 2010-03-05 EP EP10155605.8A patent/EP2226416B1/en active Active
- 2010-03-05 CN CN201010176681.9A patent/CN101845700B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0342135A1 (en) * | 1988-05-10 | 1989-11-15 | S.A. Saurer Diederichs | Weft suction and retaining device for weaving machines using jet weft inserting |
| US5697405A (en) * | 1995-03-29 | 1997-12-16 | Lindauer Dornier Gesellschaft Mbh | Weft thread insertion nozzle |
| CN2578357Y (en) * | 2002-07-22 | 2003-10-08 | 广东溢达纺织有限公司 | Jet loom with palm fibre bundle on series nozzles |
| CN101210361A (en) * | 2006-12-28 | 2008-07-02 | 苏尔特克斯股份公司 | Weft insertion device and method |
| CN101358405A (en) * | 2007-06-27 | 2009-02-04 | 津田驹工业株式会社 | Weft insertion nozzle and weft-fall-out preventing component used in weft insertion nozzle |
Also Published As
| Publication number | Publication date |
|---|---|
| ITMI20090336A1 (en) | 2010-09-07 |
| EP2226416A1 (en) | 2010-09-08 |
| CN101845700B (en) | 2014-11-12 |
| EP2226416B1 (en) | 2016-05-18 |
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