CN105986351B - It is used for method and the weft insertion device for controlling weft yarn to insert in air-jet loom - Google Patents
It is used for method and the weft insertion device for controlling weft yarn to insert in air-jet loom Download PDFInfo
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- CN105986351B CN105986351B CN201610148654.8A CN201610148654A CN105986351B CN 105986351 B CN105986351 B CN 105986351B CN 201610148654 A CN201610148654 A CN 201610148654A CN 105986351 B CN105986351 B CN 105986351B
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- weft yarn
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- main burner
- auxiliary
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
- D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
- D03D47/3026—Air supply systems
- D03D47/3033—Controlling the air supply
- D03D47/304—Controlling of the air supply to the auxiliary nozzles
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/28—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
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- Textile Engineering (AREA)
- Looms (AREA)
Abstract
The present invention relates to method and the weft insertion device for being used to control weft yarn to insert in air-jet loom.A kind of to be used to control the method that the weft yarn in air-jet loom is inserted, the air-jet loom includes：Multiple main burners, it is arranged side-by-side along the fore-and-aft direction of air-jet loom；Reed, it is arranged on the downstream of main burner relative to the weft yarn direction of insertion of air-jet loom, and is attached to slay；With multiple auxiliary jets, it is configured along weft yarn insertion path.Reed has recessed weft yarn insertion path.Auxiliary jet is included near the first auxiliary jet of main burner and not near multiple second auxiliary jets of main burner.Methods described further comprises：When a main burner near fell at least in main burner carries out weft yarn insertion, the injection pressure of the first auxiliary jet is set at less than the injection pressure of the second auxiliary jet.
Description
Technical field
The present invention relates to the method for being used to control weft yarn to insert in method air-jet loom and weft insertion device.
Background technology
There is a kind of known air-jet loom, wherein weft yarn from weft yarn by inserting the air insertion that main burner is blown out
It is formed in the weft yarn of the front side of reed insertion path, and sequentially by means of being matched somebody with somebody from along weft yarn insertion path with given interval
The air conveying weft yarn for the multiple auxiliary wefts insertion nozzle injection put.In the air-jet loom with multiple main burners,
Main burner is inserted the wall surface of path relative to weft yarn and set with angle different from each other.
Japanese Unexamined Patent Application H02-41440 publications disclose the weft insertion device in a kind of jet loom,
It includes：Weft yarn inserts main burner, and it is disposed towards the wall surface that weft yarn inserts path；Insert and spray with the first auxiliary weft
Mouth, it is arranged adjacently to weft yarn insertion main burner.The weft yarn Insertion action of weft yarn insertion main burner is inserted by the first auxiliary weft
Enter nozzle to continue.In the weft insertion device of the publication, in the weft yarn insertion effective coverage of the first auxiliary weft insertion nozzle
Conveying active force be set higher than conveying effect in the weft yarn insertion effective coverage of any other auxiliary weft insertion nozzle
Power.Especially, path is being inserted with given spaced including the multiple auxiliary of the first auxiliary weft insertion nozzle along weft yarn
Weft yarn is helped to insert in the configuration of nozzle, additional auxiliary weft insertion nozzle is arranged adjacent to the first auxiliary weft insertion nozzle,
The first auxiliary weft insertion nozzle is arranged adjacently to the weft yarn insertion path positioned at main burner side.Therefore, to weft yarn
Conveying is acted on to be strengthened in the weft yarn conveying effective coverage of the first auxiliary weft insertion nozzle.Therefore, even in weft yarn with
Weft yarn insertion path wall surface come in contact and by resistance in the case of, also ensure that weft yarn insertion necessary to convey
Active force.
Weft insertion device according to Japanese Unexamined Patent Application H02-41440 publications, additional auxiliary
Weft yarn insertion nozzle is arranged adjacently to the first auxiliary weft insertion nozzle, to strengthen weft yarn conveying effect.However, with
In the air-jet loom of the multiple main burners woven for polychrome, the configuration based on main burner, weft yarn may deviate weft yarn and insert
Enter path.Especially, by from the fell side for being arranged on loom or near fell side and the main burner away from reed
The weft yarn that air is inserted tends to deviate easily.It is believed that this deviation is the reason for generation, from positioned at fell side
It is in the air of the main burner blowout of larger angle so as to the bottom surface that path is inserted relative to weft yarn and is inserted from the first auxiliary weft
The air for entering nozzle merges, and the weft yarn inserted is guided and is located at fell side to what weft yarn inserted path by the merging of air
Open sides, result is that the weft yarn inserted deviates from weft yarn insertion path easily.
The present invention relates to the weft yarn insertion in the method for being used to control weft yarn to insert in air-jet loom and loom
Device, it can prevent the weft yarn inserted from deviateing from weft yarn insertion path.
The content of the invention
It is used to control the method that the weft yarn in air-jet loom is inserted there is provided a kind of according to an aspect of the present invention,
The air-jet loom includes：Multiple main burners, it is arranged side-by-side along the fore-and-aft direction of air-jet loom；Reed, its is relative
The downstream of main burner is arranged in the weft yarn direction of insertion of air-jet loom, and is attached to slay；With multiple auxiliary jets, its
Along weft yarn insertion path configuration.Reed has recessed weft yarn insertion path in its preceding surface.Auxiliary jet is included near master
First auxiliary jet of nozzle and not near multiple second auxiliary jets of main burner.For controlling the latitude in air-jet loom
The method of yarn insertion further comprises：When a main burner near fell at least in main burner carries out weft yarn insertion,
The injection pressure of first auxiliary jet is set at less than the injection pressure of the second auxiliary jet.
According to another aspect of the present invention there is provided the weft insertion device in a kind of air-jet loom, it includes：It is many
Individual main burner, it is arranged side-by-side along the fore-and-aft direction of air-jet loom；Reed, it is inserted relative to the weft yarn of air-jet loom
Direction is arranged on the downstream of main burner, and is attached to slay；Multiple auxiliary jets, it is configured along weft yarn insertion path；With it is many
Individual secondary valve, it is connected to auxiliary jet.Reed has recessed weft yarn insertion path in its preceding surface.Auxiliary jet is included near master
First auxiliary jet of nozzle and not near multiple second auxiliary jets of main burner.Second auxiliary jet is divided into multiple groups.It is secondary
Valve includes the first secondary valve and multiple second secondary valves, and the first auxiliary jet is connected to the first secondary valve.The auxiliary jet of each group second is connected
To the corresponding second secondary valve.Each group auxiliary jet is connected to the first assistant tank by the corresponding second secondary valve.Weft insertion device includes
Control device, it controls first secondary valve and the second secondary valve, and ought at least in main burner near fell a main burner
When carrying out weft yarn insertion, the secondary valve of control device control first so that the injection pressure of the first auxiliary jet is less than the second auxiliary jet
Spray pressure.
From the following description of principle that the present invention is illustrated by way of example with reference to accompanying drawing, other side of the invention and
Advantage will be clear understanding.
Brief description of the drawings
Fig. 1 is perspective schematic view, shows that the weft yarn in air-jet loom according to a first embodiment of the present invention is inserted
Enter the construction of device；
Fig. 2 is the partial top view for illustrating the operation of the weft insertion device in Fig. 1 air-jet loom；
Fig. 3 is block diagram, shows the connection of the air hose of Fig. 1 weft insertion device；
Fig. 4 is flow chart, shows the control flow of the weft insertion device in Fig. 1 air-jet loom；
Fig. 5 is coordinate diagram, shows the pressure of auxiliary jet of weft insertion device in Fig. 1 air-jet loom at any time
Between the change that elapses；And
Fig. 6 is block diagram, shows weft insertion device in air-jet loom according to a second embodiment of the present invention
The connection of pipe.
Embodiment
First embodiment
The weft insertion device of the air-jet loom of first embodiment of the invention is described referring now to Fig. 1-5.With reference to
Fig. 1, reference 10 is indicated generally by the weft insertion device in air-jet loom, and it includes：One group of main burner 11, it is wrapped
Include multiple main burner 11A~11F；Orifice holder 12, it keeps main burner group 11；With main support 14, it is fixed to air spray
Penetrate the slay (slay) 13 of loom.Width extension of the slay 13 along air-jet loom.Reed 15 is fixedly mount to slay
13.In the linguistic context of this specification, claimed in Fig. 1 by the bearing of trend of the slay 13 shown in the four-headed arrow with left and right mark
For the width of air-jet loom, and it is vertical with the bearing of trend of slay 13 shown in four-headed arrow by the front and rear mark of band
Direction be referred to as the fore-and-aft direction of air-jet loom.In this air-jet loom, weave cotton cloth before air-jet loom
Side is taken up, and warp thread is sent out towards the rear side of air-jet loom.
Main burner group 11 is kept by the orifice holder 12 for being arranged on the left end of slay 13.Each main burner 11A~11F
Single weft yarn is supplied to, a total of six roots of sensation weft yarn is inserted from six main burners of main burner group 11.Three main burners 11A, 11B and
Fore-and-aft directions of the 11C along air-jet loom is arranged side by side into so that main burner 11A is located at rear side, and main burner 11B is located at middle part,
And main burner 11C is located at the front side of air-jet loom.In three main burner 11A~11C, main burner 11C is positioned to most lean on
Peri position is in the fell (cloth fell) of the (not shown) of weaving cotton cloth of the front side of air-jet loom.As shown in Figure 2, main burner
11A~11C is arranged to extend with assembling towards the weft yarn insertion path 21 that will be explained below.Its excess-three main burner 11D, 11E
It is arranged in corresponding the immediately below of main burner 11A, 11B and 11C prolong along the identical fore-and-aft direction of air-jet loom with 11F
Stretch so that main burner 11D is located at the rear side of air-jet loom, main burner 11E is located at the middle part of air-jet loom, and main jet
Mouth 11F is located at the front side of air-jet loom.In three main burner 11D~11F, main burner 11F is aligned closest to be located at
The fell of the (not shown) of weaving cotton cloth of the front side of air-jet loom.Main burner 11D, 11E and 11F are also configured to logical towards weft yarn insertion
Assemble ground extension in road 21.
Main support 14 includes：Former nozzle retainer 12, it keeps main burner 11A~11F；With installation portion 16, its along
The length direction (or width) of slay 13 extends from orifice holder 12.Orifice holder 12 and the integral landform of installation portion 16
Into.Installation portion 16 is assemblied in the mounting groove 13A being formed in slay 13, and is fixed to slay 13 by bolt (not shown).
The substantially rectangular shape of orifice holder 12, and main burner 11A~11F is from the right vertical plane of orifice holder 12
Extend to the right.As shown in Figure 2, orifice holder 12 has six bullports 17 passed therethrough, and weft yarn Y is drawn by described
Guide hole 17 leads to main burner 11A~11F.Weft yarn Y is supplied to corresponding main burner 11A~11F from weft feeder (not shown).
Pipe 29 is connected to the left part of main burner retainer 12 so that pipe 29 is connected by orifice holder 12 and main burner 11A~11F
It is logical, with to corresponding main burner 11A~11F supply compressed air.Supplied by bullport 17 to main burner 11A~11F's
Weft yarn Y is advanced to the right by the compressed air from pipe 29 in main burner 11A~11F.
Reed 15 is attached to slay 13 so that reed 15 is erected on main burner 11A~11F right side.Reed 15 includes multiple reed wires
15A, it each has the recess 15B opened to the front side of air-jet loom.Width sides of the reed wire 15A along air-jet loom
Cooperated to the recess 15B of configuration, and reed wire 15A and insert path to form the foregoing weft yarn being carried through for the weft yarn Y of insertion
21.Weft yarn insertion path 21 is formed as the width extension along reed 15.In fig 1 and 2, reference 20 represents each reed wire
15A recess 15B wall surface, is then also the wall surface that weft yarn inserts path 21, its recess 15B's away from each reed wire 15A
Opening is farthest away from the opening (depending on the circumstances) that weft yarn inserts path 21.Main burner 11A~11F is disposed towards any spy
Fast reed piece 15A wall surface 20 or weft yarn inserts the wall surface 20 of path 21.Reed 15 is assemblied in the mounting groove 13A of slay 13,
And fixed by wedge 19.
Line P1, Q1 and R1 shown in Fig. 2 represent the axis from corresponding main burner 11A, 11B and 11C air stream sprayed
And its direction.Air-flow axis P1, Q1 and R1 are oriented such that shape between air-flow axis P1, Q1, R1 and reed wire 15A wall surface 20
Into incidence angle θ 1, θ 2, θ 3 it is different from each other, wherein θ 1 is minimum angles, and θ 3 is maximum angle, and between the θ 1 of θ 2 and θ 3 in
Between angle (i.e. θ 1<θ2<θ3).Main burner 11D, 11E and 11F of bottom are arranged on their corresponding top main burner 11A, 11B
It is immediately below with 11C.Therefore, the bearing of trend from the air-flow axis of the air of bottom main burner 11D~11F injections is roughly the same
In the bearing of trend of the air-flow axis of the air from top main burner 11A~11C injections.It is incident as main burner is away from reed 15
Angle θ becomes big.In other words, the incidence angle θ 3 of the main burner 11C and 11F farthest away from reed and near fell be in three incidence angles most
Big.
As shown in Figures 2 and 3, slay 13 is provided with multigroup auxiliary jet 25A~25G on its preceding surface, and it each includes one
Individual or multiple auxiliary jets.Auxiliary jet 25A~25G is inserted path 21 along weft yarn and configured with given interval.As shown in fig. 1, respectively
Auxiliary jet 25A~25G is kept in its proximal end by rest pad 22, and weft yarn insertion path 21 is pointed in the distal end of nozzle.Supporting
Block 22 is fixed to the guiding groove 23 for the front side for being formed at slay 13 by bolt 24 and nut (not shown).
The connection of the air hose of weft insertion device 10 in air-jet loom is described referring now to Fig. 3 block diagram.
Weft insertion device 10 includes air supply source 26, and it is connected to open and close valve 28 by pipe 27.Open and close valve 28 is selected
Property supply compressed air and stop supply compressed air.Open and close valve 28 is connected by being arranged on the pipe 29 of air-jet loom side
To filter 30, and it is connected to pressure gauge 31.Pressure gauge 31 measures the pressure that the compressed air come is supplied from air supply source 26
Power.Pressure gauge 31 is connected to master selector 32 by pipe 29 and is then attached to main tank 33.Master selector 32 will be from air supply source
The pressure for the compressed airs that 26 supplies come are adjusted to the pressure for being suitable for weft yarn insertion, and have been conditioned or have been reduced to this pressure
The compressed air of power is stored in main tank 33.Main tank 33 is connected to main burner 11 by pipe 29 and six main valves 34.Although figure
Not shown in, each one be connected in six main valves 34 correspondingly in six main burner 11A~11F.
Compressed air in main tank 33 is supplied to main burner 11 by main valve 34, is then started to carry out weft yarn insertion, is made
The insertion for obtaining weft yarn Y is carried out.Pipe 29 of the pipe 35 between pressure gauge 31 and master selector 32 is branched off, and passes through throttling
Valve 36 is connected to the pipe 29 between main valve 34 and main burner group 11, so as to form gentle breeze loop, and it allows to obtain choke valve 36 to adjust
A small amount of compressed air of section is supplied to main burner group 11 so that main burner 11 blows out the gentle breeze for keeping weft yarn Y.
On the other hand, pipe 29 of the pipe 37 between pressure gauge 31 and master selector 32 is branched off, and passes through secondary controller
38 are connected to the first assistant tank 39.Secondary controller 38 will be treated to adjust to suitable from the pressure that air supply source 26 supplies the compressed air come
The secondary air pressure M1 inserted together in weft yarn, and be conditioned or be reduced to secondary air pressure M1 compressed air and be stored in
In first assistant tank 39.
Multigroup auxiliary jet 25 includes being aligned closest to the auxiliary jet 25A of main burner 11, inserted relative to weft yarn Y by weft yarn
The conveying direction for entering path 21 is positioned at auxiliary jet 25A three auxiliary jet 25B immediately downstream, is successively set under auxiliary jet 25B
Four auxiliary jet 25C, four auxiliary jet 25D, four auxiliary jet 25E, four auxiliary jet 25F and the four auxiliary jet 25G swum.
Auxiliary jet 25A is connected to the first assistant tank 39 by the first secondary valve 40.Auxiliary jet 25A corresponds to the first pair of the present invention
Nozzle.
Each group auxiliary jet 25B, 25C, 25D, 25E, 25F and 25G is connected to the first assistant tank 39 by the single second secondary valve 41.
Auxiliary jet 25B~25G corresponds to the second auxiliary jet of the present invention.
Especially, auxiliary jet 25A is connected to the first assistant tank 39 by the first secondary valve 40 and pipe 37.Each group auxiliary jet 25B~
25G is connected to the first assistant tank 39 by its corresponding second secondary valve 41, and is connected to the first assistant tank 39 by pipe 37.Along weft yarn
Insertion path 21 is configured with 24 auxiliary jet 25A~25G altogether with given interval.When carrying out weft yarn insertion, the first secondary valve 40
Start, and the compressed air in secondary air pressure M1 is supplied to auxiliary jet 25A from the first assistant tank 39.Similarly, second is secondary
Valve 41 starts, and the compressed air in secondary air pressure M1 is supplied to corresponding auxiliary jet 25B~25G from the first assistant tank 39.Should
, it is noted that the first secondary secondary valve 41 of valve 40 and second is same type, and same size and construction.It is positioned at auxiliary jet 25A
Immediately downstream and to be connected to the auxiliary jet 25B quantity of the second secondary valve 41 be three.Auxiliary jet 25A quantity and auxiliary jet 25B
Quantity sum be four, it is equal to the follow-up each group pair spray for being arranged on one group of auxiliary jet 25B downstream and being connected to the second secondary valve 41
The quantity of auxiliary jet 25 in mouth 25C~25G.
Pressure gauge 31 is electrically connected to the control device 43 with function panel 42, and is sent to control device 43 on pressure
The data of institute's measuring pressure of contracting air.Control device 43 has：Memory, stores the pressure data from pressure gauge 31 wherein
With various setting values etc.；And operational part, it is based on pressure data and carries out various calculate.In addition, control device 43 is deposited wherein
The various programs for operating air-jet loom are stored up, and although not shown in the drawings, also pass through the latitude in air-jet loom
Signal is sent to the secondary valve 41 of the secondary valve 40 and second of main valve 34, first during yarn insertion operation, to control rising for weft yarn insertion operation
Dynamic and stopping.
The control flow of weft yarn insertion is described referring now to Fig. 4 flow chart.First, start in weft yarn insertion
(S101) after, it is controlled to start main valve 34 (S102) so that compressed air supplies (main to main burner group 11 from main tank 33
Nozzle 11A~11F).
Next, weft yarn Y passes through supplied compressed air through main burner 11A~11F, and use is inserted by weft yarn
Air is inserted in path 21 (S103) from main burner 11A~11F port injection to weft yarn.It should be noted that weft yarn insertion is
Based on preset program carry out, and for weft yarn insert main burner be according to program from six main burner 11A~11F by
It is individual sequentially to select.
It is next determined that it is selected for weft yarn insert main burner whether near fell (main burner 11C or
11F), or selected main burner is not closest to fell (main burner 11A, 11B, 11D or 11E) (S104).When it is determined that institute
When the main burner for being used for weft yarn insertion of selection is near fell, i.e. weft yarn is carried out when have selected main burner 11C or 11F and is inserted
Fashionable ("Yes" in S104), then program advances to step S105, and the first secondary valve 40 is controlled as passing through even in weft yarn Y herein
Also remained turned-off when crossing auxiliary jet 25A (OFF controls).Therefore, supplied without compressed air from the first assistant tank 39 to auxiliary jet
25A, weft yarn Y are only inserted by inserting weft yarn from main burner 11C or main burner 11F (depending on which have selected) injection air
Enter in path 21.
Next, when weft yarn Y passes through corresponding auxiliary jet 25B~25G, the secondary valve 41 of control second with from upstream side sequentially
(ON controls) (S106) is opened on ground, so that compressed air is sequentially supplied to auxiliary jet 25B~25G from the first assistant tank 39.Cause
This, auxiliary jet 25B~25G is controlled as sequentially spraying air with the order.
The weft yarn Y inserted in weft yarn insertion path 21 is by the air from auxiliary jet 25B~25G injections with trunking scheme
(or towards downstream) is transported in weft yarn insertion path 21 (S107) to the right, and when weft yarn Y reach cloth and main burner group 11
During relative end, terminate weft yarn insertion (S108).
When it is determined that the selected main burner inserted for weft yarn is not closest to fell, i.e. when have selected main burner
One of 11A, 11B, 11D or 11E carry out ("No" in S104) during weft yarn insertion, then program advances to step S109, at this
In the first secondary valve 40 be controlled as opening (ON controls) when weft yarn Y passes through auxiliary jet 25A.As a result, compressed air is able to
Supplied from the first assistant tank 39 to auxiliary jet 25A, auxiliary jet 25A so as to spray air.
Next, the secondary valve 41 of control second is sequentially to open (ON controls) from upstream side, so that by compressed air from the
One assistant tank 39 is sequentially supplied to auxiliary jet 25B~25G (S110).Therefore, auxiliary jet 25B~25G is sequentially sprayed with the order
Penetrate air.
The weft yarn Y inserted in weft yarn insertion path 21 is by the air from auxiliary jet 25B~25G injections with trunking scheme
(or towards downstream) is transported in weft yarn insertion path 21 (S111) to the right, and when weft yarn Y reach cloth and main burner group 11
During relative end, terminate weft yarn insertion (S108).
Above-mentioned latitude in the air-jet loom with above-mentioned construction according to a first embodiment of the present invention explained below
The operation of yarn insertion device 10.
When weft yarn, which is inserted, to be started, it is controlled to start main valve 34 so that compressed air is supplied to main jet from main tank 33
Mouth group 11 (main burner 11A~11F).From the air of main burner 11A~11F injection in weft yarn insertion path 21 (or court to the right
Downstream) flowing, as found out in fig 1 and 2.
As shown in Figure 2, from the air-impingement of main burner 11A~11F injections to recess 15B wall surface 20, then
Reflected from wall surface 20, as shown by arrows.Especially, the air sprayed along air-flow axis P1 from main burner 11A is at point K1
Impact on wall surface 20, then turn to as contrajet P2, its reflection of direction shown in arrow P2 along along Fig. 2.Along air-flow axis
Q1 is impacted on wall surface 20 from the main burner 11B air sprayed at point K2, is then turned to as contrajet Q2, it is along along Fig. 2
Direction shown in arrow Q2 is reflected.The air sprayed along air-flow axis R1 from main burner 11C impacts wall surface 20 at point K3
On, then turn to as contrajet R2, its reflection of direction shown in arrow R2 along along Fig. 2.In fig. 2, point K1, K2 and K3 represents slave phase
Answer the pip of the air of main burner 11A~11F injections.
With being sprayed from secondary before being reflected from the air of corresponding main burner 11A~11F injections on reed wire 15A wall surface 20
Mouth 25A air F merges.Main burner 11A~11F and auxiliary jet 25A are arranged so that air F from auxiliary jet 25A to wall surface
20 incidence angle is respectively greater than incidence angle θ 1, θ 2 and the θ 3 of the air from main burner 11A~11F injections.Therefore, after merging
Reflective air stream and its direction respectively are represented by P3, Q3 and R3, as shown in Fig. 2 contrajet P3, Q3 and R3 reflection
Angle is more than the reflection angle of contrajet P2, Q2 and R2 before merging with the air F from auxiliary jet 25A.Especially, from master
The air of nozzle 11A injections causes contrajet P3 reflection angle to be more than merging with merging for the air F from auxiliary jet 25A
Preceding contrajet P2 reflection angle.Similarly, from the conjunction of the main burner 11B air and the air F from auxiliary jet 25A sprayed
And cause contrajet Q3 reflection angle to be more than contrajet Q2 reflection angle.When the air that is sprayed from main burner 11C with from pair
When the air F of nozzle 25A injections merges, contrajet R3 reflection angle is more than the reflection angle of the contrajet R2 before merging.
In addition, because main burner 11 is arranged to meet relation θ 1<θ2<θ 3, so in contrajet P3, Q3 and R3, reflection
The reflection angle for flowing R3 is maximum, and contrajet P3 reflection angle is minimum, and contrajet Q3 reflection angle is between the anti-of R3 and P3
Between firing angle degree.
As shown in Figure 2, when auxiliary jet 25A is controlled as and the sky from main burner 11C or the 11F injection near fell
During gas joint injection air, therefore the air sprayed from main burner 11C or main burner 11F is closed with the air F from auxiliary jet 25A
And, on air-impingement after merging to wall surface 20, then turn to as contrajet R3.Contrajet R3 reflection angle is maximum, because
This, contrajet R3 is possible to before merging with from the air F for being arranged on the auxiliary jet 25B blowouts of auxiliary jet 25A immediately downstream, from
Weft yarn insertion path 21 (or towards recess 15B open sides) outflow.
When weft yarn Y is inserted from main burner 11C or main burner 11F, the first secondary valve 40 is controlled as passing through even in weft yarn Y
Also (OFF controls) is remained turned-off during auxiliary jet 25A, is supplied from without compressed air from the first assistant tank 39 to auxiliary jet 25A, from
Without the injection from auxiliary jet 25A.In weft yarn Y from the situation of main burner 11C or main burner the 11F insertion near fell
Under, when weft yarn Y passes through auxiliary jet 25A, the air only from main burner 11C or 11F reflects on wall surface 20, so as to lead
Cause the contrajet R2 in Fig. 2.Contrajet R2 reflection angle is less than the air sprayed from main burner 11C or main burner 11F with coming
The contrajet R3 occurred when merging from auxiliary jet 25A air F reflection angle, and insert path from weft yarn in contrajet R2
Before 21 outflows, contrajet R2 merges with from the air F for being arranged on the auxiliary jet 25B of auxiliary jet 25 immediately downstream.As a result,
Contrajet does not occur and inserts the situation that path 21 flows out from weft yarn, it is therefore prevented that weft yarn Y is inclined from weft yarn insertion path 21 easily
From so as to prevent mixed weft.
On the other hand, when by not carrying out weft yarn near any one in main burner 11A, 11B, 11D and 11E of fell
During insertion, the first secondary valve 40 is controlled as opening (ON controls), and compressed air is supplied near master from the first assistant tank 39
The auxiliary jet 25A of nozzle sets 11, so that auxiliary jet 25A sprays air.Therefore, when by not near the main burner of fell
When 11A, 11B, 11D or 11E carry out weft yarn insertion, from main burner 11A, 11B, 11D or 11E air sprayed and from auxiliary jet
25A air F merges, and the air after merging reflects on reed wire 15A wall surface 20, so as to form contrajet P3 or Q3.Instead
Jet P3 or contrajet Q3 reflection angle are less than contrajet R3 reflection angle, and contrajet P3 or Q3 is inserting path from weft yarn
Before 21 outflows, merge with the air F from the auxiliary jet 25B positioned at auxiliary jet 25A immediately downstream.As a result, not occurring anti-
Jet inserts the situation that path 21 flows out from weft yarn.
Fig. 5 is the coordinate diagram for showing the change of auxiliary jet 25A pressure over time.In Figure 5, solid line G is shown
It is connected to the first secondary valve 40 and is controlled as spraying the auxiliary jet 25A of air characteristic curve.Dotted line H shows that auxiliary jet 25B exists
It is connected to characteristic curve during the second secondary valve 41, wherein the second secondary valve 41 is connected with three auxiliary jet 25B, and is controlled as
Spray air.As shown in Figure 5, the surge pressure G1 in characteristic curve G is higher than the surge pressure H1 (G1 in characteristic curve H>
H1).Auxiliary jet 25A surge pressure is in the case where auxiliary jet 25A is connected to the first secondary valve 40 and is controlled as injection air
It is higher, i.e. surge pressure G1 is higher than surge pressure H1.Therefore, the spray of main burner 11A, 11B, 11D and 11E away from fell side
Injection pressure may be reduced.In addition, be connected to the auxiliary jet 25B of the second secondary valve 41 quantity less than follow-up each group auxiliary jet 25C,
25D, 25E, 25F and 25G quantity.Therefore, auxiliary jet 25B injection pressure is higher than auxiliary jet 25C~25G injection pressure,
So that main burner 11A, 11B, 11D and 11E injection pressure may reduce the degree when weft yarn is inserted.
Weft insertion device 10 in the air-jet loom of first embodiment of the invention provides following effect.
(1) in the weft insertion device such as 10 of the present embodiment, wherein the master of the fell near air-jet loom
Nozzle 11C or 11F relative to weft yarn insert path 21 wall surface 20 with big incidence angle θ 3 point to weft yarn insertion path 21, when from
When the air of main burner 11C or 11F injection merges with the air F from the auxiliary jet 25A near main burner group 11, gained is anti-
Jet R3 is possible to before contrajet R3 merges with from the air F for being arranged at the auxiliary jet 25B of auxiliary jet 25A immediately downstream,
Turn to insert the flowing that path 21 flows out from weft yarn, so that the weft yarn Y of insertion deviates weft yarn insertion path 21.However, root
According to the present embodiment, when carrying out weft yarn insertion by main burner 11C or main burner 11F, the first secondary valve 40 passes through auxiliary jet in weft yarn Y
Be controlled as remaining turned-off (OFF controls) during 25A, and compressed air is not supplied to auxiliary jet 25 from assistant tank 39, from without
Air is ejected from auxiliary jet 25A.Therefore, reflected from the main burner 11C or main burner 11F air sprayed on wall surface 20
Into contrajet R2 so that contrajet R2 does not flow out, so that not occurring from main burner 11C or 11F the weft yarn Y inserted
Outflow, contrajet R2 is then inserted in contrajet R2 from weft yarn before path 21 flows out and the air F from auxiliary jet 25B is closed
And.Therefore, contrajet does not flow out from weft yarn insertion path 21, so as to prevent weft yarn Y to deviate weft yarn insertion path 21.
(2) when by not carrying out weft yarn insertion near any one in main burner 11A, 11B, 11D and 11E of fell
When, the first secondary valve 40 is controlled as opening (ON controls), and compressed air is supplied near main burner from the first assistant tank 39
The auxiliary jet 25A of group 11, so that auxiliary jet 25A sprays air.Air from main burner 11A, 11B, 11D or 11E with from
The air F of auxiliary jet 25A blowouts is merged into contrajet P3 or Q3.Gained contrajet P3 or Q3 flows from weft yarn insertion path 21
Before going out, merge with from the air F for being arranged on the auxiliary jet 25B of auxiliary jet 25A immediately downstream, therefore contrajet does not occur from latitude
The situation that yarn insertion path 21 flows out.Therefore, when auxiliary jet 25A be controlled as open in the case of by main burner 11A, 11B,
In 11D and 11E any one carry out weft yarn insertion when, not by auxiliary jet 25A control for close in the case of, also do not occur latitude
Yarn Y inserts the situation that path 21 deviates from weft yarn.
(3) the auxiliary jet 25A near main burner group 11 by the first secondary valve 40 is connected to the first assistant tank 39.When by most
When carrying out weft yarn insertion close to the main burner 11C or main burner 11F of fell, the first secondary valve 40 passes through auxiliary jet even in weft yarn Y
During 25A, it is also controlled by remaining turned-off.Auxiliary jet 25A injection pressure is zero, so that less than auxiliary jet 25B~25G injection
Pressure.Therefore, with needing to use the first secondary valve as pressure-regulating valve or needing to provide the compressed air of storage different pressures
The constructions of multiple gas tanks compare, can successfully prevent weft yarn Y from deviateing weft yarn insertion path 21 by simple structure.
(4) first embodiment of the present invention can carry out the modification of minimum, i.e. it is mutually similar to provide with the second secondary valve 41
Type and be the secondary valve 40 of general type, and the single secondary valve 25A near main burner group 11 is connected to the first secondary valve 40.This
Outside, only one of which auxiliary jet 25A is connected to the first secondary valve 40, and is arranged on the one group of auxiliary jet 25B of auxiliary jet 25A immediately downstream
In the second auxiliary jet quantity be less than follow-up each group auxiliary jet 25C, 25D, 25E, 25F and 25G in auxiliary jet quantity.Cause
This, auxiliary jet 25A and the auxiliary jet 25B positioned at auxiliary jet 25A immediately downstream injection pressure can increase, therefore, main burner
11A, 11B, 11D and 11E injection pressure can be reduced up to the increased degree.This helps to reduce energy expenditure.
(5) when the auxiliary jet 25A near main burner group 11 is controlled as spraying air by the first secondary valve 40, with pair
The construction that nozzle 25A is included in auxiliary jet 25B group is compared, the master in addition to the main burner 11C and 11F near fell
Nozzle 11A, 11B, 11D and 11E injection pressure can be lowered.
Second embodiment
The second embodiment of the present invention is described below with reference to Fig. 6.
The difference of second embodiment and first embodiment is the construction of the first secondary valve, and remaining construction is roughly the same.
Therefore, for convenience of description, the first and second embodiments will be used in conjunction with a part of reference represent identical part or
Element, and its details will be omitted, and the difference part with first embodiment is only described.
The weft insertion device represented by reference 50 in air-jet loom is described referring now to Fig. 6 block diagram
Air hose connection.
Auxiliary jet 25A near main burner group 11 is connected to switching valve 51, the switching valve 51 include the first valve 51A,
The second valve 51B and check-valves 51C being arranged between the first valve 51A and the second valve 51B.Switching valve 51 is configured in the first valve
Switch pressure between 51A and the second valve 51B.It should be noted that switching valve 51 corresponds to the first secondary valve of the present invention.Near master
The auxiliary jet 25A of nozzle sets 11 is connected to the first valve 51A, and is further connected to the first assistant tank 39 by pipe 37.Auxiliary jet
25A is connected to the second valve 51B, and is further connected to the second assistant tank 53 by pipe 52.Compressed air in second assistant tank 53
Pressure M2 be less than the first assistant tank 39 in pressure M1.In other words, the pressure of the compressed air in the second assistant tank 53 is less than first
The pressure of compressed air in assistant tank 39.
Pipe 29 of the pipe 37 between pressure gauge 31 and master selector 32 is branched off, and is connected to secondary controller 38.Pair is adjusted
Section device 54 is connected with the pipe 52 being branched off from pipe 37, and is connected to the second assistant tank 53.Secondary controller 54 will be supplied from air
The pressure for the compressed air that the supply of source 26 comes is adjusted to the secondary air pressure M2 for being suitable for weft yarn insertion, and has been conditioned or has been dropped
As little as secondary air pressure M2 compressed air is stored in the second secondary gas tank 53.
The control carried out during weft yarn insertion will now be described.When the main burner by the fell near air-jet loom
When 11C or main burner 11F carries out weft yarn insertion, switching valve 51 is controlled as opening the second valve when weft yarn Y passes through auxiliary jet 25A
51B (ON controls) so that the compressed air in low pressure is supplied to most leaning on from the second low assistant tank 53 of pressure ratio the first assistant tank 39
The auxiliary jet 25A of nearly main burner group 11, so that auxiliary jet 25A sprays air.At this moment first valve 51A is controlled as remaining turned-off
(OFF controls).
On the other hand, when by not carrying out weft yarn near any one in main burner 11A, 11B, 11D and 11E of fell
During insertion, switching valve 51 is controlled as opening the first valve 51A (ON controls) when weft yarn Y passes through auxiliary jet 25A, thus allows pressure
Contracting air is supplied to auxiliary jet 25A from the first assistant tank 39, to spray air from auxiliary jet 25A.Because at this moment the second valve 51B keeps
Close (OFF controls), the check-valves 51C between the first valve 51A and the second valve 51B prevent compressed air from the first assistant tank 39 (from
In higher secondary air pressure M1) it is flow to by the second valve 51B in the second assistant tank 53.
So, weft yarn is being carried out by using the main burner 11C or main burner 11F of the fell near air-jet loom
During insertion, switching valve 51 is controlled as opening the second valve 51B (ON controls), to allow the compressed air in low pressure from pressure
Second assistant tank 53 lower than the first assistant tank 39 is supplied to auxiliary jet 25A.The air sprayed from main burner 11C or main burner 11F with
The air in low pressure from auxiliary jet 25A merges, and is reflected in the wall surface 20 that weft yarn inserts path 21.The reflection of gained
Stream and then before it flows out from weft yarn insertion path 21, and from the sky for being arranged on the auxiliary jet 25B of auxiliary jet 25A immediately downstream
Gas F merges.Therefore, contrajet does not flow out from weft yarn insertion path 21.As a result, weft yarn Y inserts path 21 without departing from weft yarn,
So as to prevent generation mixed weft (mispicks).
It should not be construed that the present invention is limited to above example.The present invention can carry out various modifications as follows, and
Without departing substantially from the spirit and scope of the present invention.
According to the first and second aspects of the present invention, auxiliary jet 25B group includes three auxiliary jets, and auxiliary jet group
It is each including four auxiliary jets in 25C~25G.However, it is also possible to which being constructed so that auxiliary jet 25B group includes a secondary spray
Mouth, and each group auxiliary jet 25C~25G includes two auxiliary jets.In such a case it is possible to smoothly spray air.
According to the first and second embodiments, auxiliary jet 25B group include three auxiliary jets and each group auxiliary jet 25C~
It is each including four auxiliary jets in 25G, and auxiliary jet 25A~25G is with given interval configuration.However, according to the present invention, it is secondary
Nozzle 25A~25G group can be configured in two separated regions along weft yarn insertion path 21, wherein in upstream region
In auxiliary jet spacing be different from weft yarn insert path 21 downstream area in spacing.Especially, it can also construct
Into causing, in the region in upstream side that weft yarn inserts in path 21 configuring a part includes the auxiliary jet of two auxiliary jets
Group 25A~25G, and match somebody with somebody auxiliary jet 25A~25G of remaining group in the region in downstream that weft yarn inserts in path 21
It is set to including three auxiliary jets.In this case, the spacing of the auxiliary jet in the upstream region for inserting path 21 positioned at weft yarn is small
In the spacing of the auxiliary jet in downstream area so that positioned at weft yarn insert path 21 downstream area in larger space
The specific air consumption for being used for air injection of separated auxiliary jet can be reduced.
In above variant embodiment, each group auxiliary jet in the upstream region for inserting path positioned at weft yarn can include four
Individual auxiliary jet, and can each include three auxiliary jets in remaining each group auxiliary jet in downstream area.In the construction
In, the auxiliary jet spacing distance in upstream region is smaller than the auxiliary jet in downstream area so that insert path 21 positioned at weft yarn
The specific air consumption for being used for air injection of the auxiliary jet configured in downstream side region with larger space can be reduced.
Pressure-regulating valve can be used as to the first secondary valve so that when the main burner by the fell near air-jet loom
When 11C or 11F carries out weft yarn insertion, the pressure to be fed to auxiliary jet 25A compressed air is lowered.
It can also be constructed so that, use the main jet in addition to the main burner near the fell of air-jet loom
When mouth carries out weft yarn insertion, the deviation state of path 21 is inserted from weft yarn based on weft yarn Y, the injection pressure of the first auxiliary jet is set
It is set to the injection pressure less than the second auxiliary jet.
Claims (5)
1. a kind of be used to control the method that the weft yarn in air-jet loom is inserted, the air-jet loom includes：
Multiple main burners (11A, 11B, 11C, 11D, 11E, 11F), it is arranged side-by-side along the fore-and-aft direction of air-jet loom；
Reed (15), its relative to the weft yarn direction of insertion of air-jet loom be arranged on main burner (11A, 11B, 11C, 11D,
11E, 11F) downstream, and be attached to slay (13), the reed (15) has recessed weft yarn insertion logical in its preceding surface
Road (21)；With
Multiple auxiliary jets (25A, 25B, 25C, 25D, 25E, 25F), it inserts path (21) along weft yarn and configured, wherein auxiliary jet
(25A, 25B, 25C, 25D, 25E, 25F) includes the first secondary spray near main burner (11A, 11B, 11C, 11D, 11E, 11F)
Mouth (25A) and not near main burner (11A, 11B, 11C, 11D, 11E, 11F) multiple second auxiliary jets (25B, 25C,
25D, 25E, 25F), it is characterised in that methods described further comprises：
When a main burner (11C, 11F) at least in main burner (11A, 11B, 11C, 11D, 11E, 11F) near fell
Carry out weft yarn insertion when, by the injection pressure of the first auxiliary jet (25A) be set at less than the second auxiliary jet (25B, 25C, 25D,
25E, 25F) injection pressure.
2. the weft insertion device (10,50) in a kind of air-jet loom, including：
Multiple main burners (11A, 11B, 11C, 11D, 11E, 11F), it is arranged side-by-side along the fore-and-aft direction of air-jet loom；
Reed (15), its relative to the weft yarn direction of insertion of air-jet loom be arranged on main burner (11A, 11B, 11C, 11D,
11E, 11F) downstream, and be attached to slay (13), the reed (15) has recessed weft yarn insertion logical in its preceding surface
Road (21)；With
Multiple auxiliary jets (25A, 25B, 25C, 25D, 25E, 25F), it inserts path (21) along weft yarn and configured, wherein auxiliary jet
(25A, 25B, 25C, 25D, 25E, 25F) includes the first secondary spray near main burner (11A, 11B, 11C, 11D, 11E, 11F)
Mouth (25A) and not near main burner (11A, 11B, 11C, 11D, 11E, 11F) multiple second auxiliary jets (25B, 25C,
25D、25E、25F)；With
Multiple secondary valves (40,41,51), it is connected to auxiliary jet (25A, 25B, 25C, 25D, 25E, 25F), it is characterised in that
Second auxiliary jet (25B, 25C, 25D, 25E, 25F) is divided into multiple groups,
Secondary valve (40,41,51) includes the first secondary valve (40,51) and multiple second secondary valves (41),
First auxiliary jet (25A) is connected to the first secondary valve (40,51),
The auxiliary jet of each group second (25B, 25C, 25D, 25E, 25F) is connected to the corresponding second secondary valve (41),
The auxiliary jet of each group second (25B, 25C, 25D, 25E, 25F) is connected to the first assistant tank by the corresponding second secondary valve (41)
(39),
Weft insertion device (10,50) includes control device (43), and it controls the first secondary valve (40,51) and the second secondary valve (41),
And
When a main burner (11C, 11F) at least in main burner (11A, 11B, 11C, 11D, 11E, 11F) near fell
When carrying out weft yarn insertion, the secondary valve (40,51) of control device (43) control first so that the injection pressure of the first auxiliary jet (25A)
Less than the injection pressure of the second auxiliary jet (25B, 25C, 25D, 25E, 25F).
3. the weft insertion device (10,50) in air-jet loom according to claim 2, it is characterised in that
First auxiliary jet (25A) is connected to the first assistant tank (39) by the first secondary valve (40), and
When a main burner (11C, 11F) near fell in main burner (11A, 11B, 11C, 11D, 11E, 11F) is carried out
When weft yarn is inserted, when weft yarn (Y) is by the first auxiliary jet (25A), control device (43) controls the first secondary valve (40)
To remain turned-off.
4. the weft insertion device (10,50) in air-jet loom according to claim 3, it is characterised in that
First secondary valve (40) and the second secondary valve (41) are same type, and
One group second auxiliary jet (25B) of the quantity of first auxiliary jet (25A) with configuration in the first auxiliary jet (25A) immediately downstream
Quantity sum is equal to the quantity of each auxiliary jet in the follow-up auxiliary jet of each group second (25C, 25D, 25E, 25F).
5. the weft insertion device (50) in air-jet loom according to claim 2, it is characterised in that
First secondary valve (40,51) is switching valve (51), and it includes the first valve (51A) and is connected to the second valve of the first valve (51A)
(51B), and be configured to switch pressure between the first valve (51A) and the second valve (51B),
First auxiliary jet (25A) is connected to the first assistant tank (39) by the first valve (51A), and
Low second secondary of pressure that first auxiliary jet (25A) is connected in the assistant tank of pressure ratio first (39) by the second valve (51B)
Tank (53).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015052805A JP6172186B2 (en) | 2015-03-17 | 2015-03-17 | Weft insertion control method for air jet loom and weft insertion device for air jet loom |
| JP2015-052805 | 2015-03-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105986351A CN105986351A (en) | 2016-10-05 |
| CN105986351B true CN105986351B (en) | 2017-10-03 |
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ID=55806091
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610148654.8A Active CN105986351B (en) | 2015-03-17 | 2016-03-16 | It is used for method and the weft insertion device for controlling weft yarn to insert in air-jet loom |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6172186B2 (en) |
| CN (1) | CN105986351B (en) |
| BE (1) | BE1023553B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111197195B (en) * | 2018-11-19 | 2021-10-29 | 株式会社丰田自动织机 | Air jet loom |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6454310B2 (en) | 2016-09-05 | 2019-01-16 | 矢崎総業株式会社 | Wire integrated clamp mark and wire harness |
| BE1025206B1 (en) * | 2017-05-11 | 2018-12-12 | Picanol Nv | Mounting device for a nozzle arrangement and nozzle arrangement |
| CN109457371A (en) * | 2019-01-17 | 2019-03-12 | 王安俭 | For adjusting the device and method of the eject position of pilot jet in air-jet loom |
| JP7184675B2 (en) * | 2019-03-06 | 2022-12-06 | 株式会社豊田自動織機 | Weft insertion device for air jet loom |
| JP7489003B2 (en) * | 2021-01-29 | 2024-05-23 | 株式会社豊田自動織機 | Air jet weaving machine weft insertion device |
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| CN102534953A (en) * | 2010-11-29 | 2012-07-04 | 津田驹工业株式会社 | Ejection-period setting method for sub-nozzles in air jet loom |
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| US4646791A (en) * | 1983-01-13 | 1987-03-03 | Tsudakoma Corporation | Method and apparatus for inserting weft threads in multiple-color air jet looms |
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| JP3057886B2 (en) * | 1991-04-01 | 2000-07-04 | 株式会社豊田自動織機製作所 | Reed for weft insertion device in jet loom and method of manufacturing the reed |
| JPH06264334A (en) * | 1993-03-08 | 1994-09-20 | Asahi Chem Ind Co Ltd | Weft-insertion method and reed having modified form |
| EP2163670B1 (en) * | 2008-09-12 | 2014-11-05 | Picanol | Method for controlling transportation of a weft thread through a shed |
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- 2016-03-16 CN CN201610148654.8A patent/CN105986351B/en active Active
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| EP0238128A2 (en) * | 1986-03-20 | 1987-09-23 | Picanol N.V. | Method for the control of auxiliary blowers for the insertion of a weft thread on weaving looms and device applied to this end |
| CN101613903A (en) * | 2008-06-23 | 2009-12-30 | 株式会社丰田自动织机 | Picking method and weft insertion device in the jet loom |
| CN102031620A (en) * | 2009-09-23 | 2011-04-27 | 株式会社丰田自动织机 | Weft insertion device of air-jet loom |
| CN102534953A (en) * | 2010-11-29 | 2012-07-04 | 津田驹工业株式会社 | Ejection-period setting method for sub-nozzles in air jet loom |
| CN103820923A (en) * | 2012-11-19 | 2014-05-28 | 株式会社丰田自动织机 | Apparatus for setting weft insertion condition in an air jet loom |
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| CN111197195B (en) * | 2018-11-19 | 2021-10-29 | 株式会社丰田自动织机 | Air jet loom |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105986351A (en) | 2016-10-05 |
| BE1023553B1 (en) | 2017-05-02 |
| JP2016172937A (en) | 2016-09-29 |
| BE1023553A1 (en) | 2017-05-02 |
| JP6172186B2 (en) | 2017-08-02 |
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