CN107034575A - Weft yarn travel condition monitoring method in air-jet loom - Google Patents
Weft yarn travel condition monitoring method in air-jet loom Download PDFInfo
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- CN107034575A CN107034575A CN201610811539.4A CN201610811539A CN107034575A CN 107034575 A CN107034575 A CN 107034575A CN 201610811539 A CN201610811539 A CN 201610811539A CN 107034575 A CN107034575 A CN 107034575A
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- weft yarn
- weft
- sensor
- unwinding
- air
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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
- D03D47/3066—Control or handling of the weft at or after arrival
- D03D47/3073—Detection means therefor
-
- 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
-
- 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
-
- 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
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Abstract
Method is monitored the present invention relates to the weft yarn travel condition in air-jet loom, the travel condition of weft yarn is monitored exactly.Weft sensor is arranged on the weft yarn front position than braking start time (BT) close to wefting insertion direction upstream side in woven pieces, therefore, it is possible to not held the difference of travel condition caused by the difference for spraying pressure of species, Weft insertion nozzle and the pilot jet of weft yarn by the braking of brake with being influenceed.At the time of therefore, it is possible to hold the third time weft yarn unwinding moment (B3) of due in (IS) and air ring sensor in the middle of the weft yarn based on weft sensor in woven pieces exactly poor (Δ).Poor (Δ) can monitor the poised state of the weft yarn transportation performance of the unwinding performance of the weft yarn of Weft insertion nozzle and pilot jet at the time of due in (IS) is with the weft yarn unwinding moment (B3) in the middle of weft yarn, can aid in the control of compressed air pressure, time for spraying.
Description
Technical field
The present application is related to the method that weft yarn travel condition is monitored in air-jet loom.
Background technology
Air-jet loom is configured to：The storing weft threads of yarn feeder are surveyed into long storage device in weft yarn, it is unwinding using Weft insertion nozzle
The weft yarn that is stored simultaneously starts wefting insertion, will be delivered to using pilot jet by the weft yarn of wefting insertion in woven pieces, terminates wefting insertion.It is known logical
Cross and hold the weft yarn travel condition in woven pieces to control unwinding, the conveying work(of the weft yarn based on Weft insertion nozzle and pilot jet
Energy.
For example, a kind of Weft insertion controller of air injection loom disclosed in patent document 1, its object is to will not
Cause the increase of unwanted specific air consumption, and control wefting insertion and prevent wefting insertion bad.Air injection loom is configured to logical
The air for crossing pilot jet sprays to carry out wefting insertion to the weft yarn for being stored in storage reels, and the pilot jet is along weft yarn injection
Main burner and wefting insertion path are configured at regular intervals.
In Weft insertion controller, during wefting insertion, the unwinding sensor of weft yarn of the vicinity of storage reels is disposed in from storage
The unwinding time of the unwinding weft yarn of reel is detected.In addition, the weft yarn for knitting end for being arranged on the side opposite with main burner is arrived
Up to sensor to being detected by the weft yarn of wefting insertion to the arrival time of anti-wefting insertion side.Main burner is with by the unwinding sensor inspection of weft yarn
The unwinding time for the weft yarn measured turns into the mode of desired value to control to spray pressure.
In addition, pilot jet controls spray in the way of the time difference of the arrival time of weft yarn and unwinding time turn into desired value
Injection pressure, the complications of the weft yarn reduced in wefting insertion.In addition, causing the variable quantity of time difference to be changed into rule in the change because spraying pressure
When below definite value, the time difference now is changed to desired value, suppresses the increase of unwanted specific air consumption.
Patent document 1：Japanese Unexamined Patent Publication 4-240249 publications
In recent years, mostly be more than 1000 turns per minute high-speed air-jet looms under arms.Knitted in the jet run at high speed
In machine, the gait of march of weft yarn is high, therefore the impact at the end of wefting insertion becomes big, the worry increase of weft yarn cut-out caused by impact.
It is general using being braked to the weft yarn of traveling before at the end of the wefting insertion in order to relax the impact at the end of such wefting insertion
Brake unit.
In the air-jet loom of brake unit is provided with, the weft yarn travel condition after braking, before wefting insertion terminates is difficult to
Now because the species of weft yarn, Weft insertion nozzle and pilot jet injection pressure difference caused by difference.Therefore, as patent document
Weft insertion controller disclosed in 1 like that, to by the arrival time of the weft yarn of wefting insertion and weft yarn from storage reels it is unwinding when
Between the method that is detected of time difference in, the arrival time of weft yarn is implementing to be examined after braking using brake unit
Survey, therefore, it is difficult to occur the species because of weft yarn, Weft insertion nozzle and pilot jet injection pressure difference caused by the time difference
Difference, it is difficult to exactly hold weft yarn travel condition.
The content of the invention
The purpose of the present application is to monitor the travel condition of weft yarn exactly.
In weft yarn travel condition monitoring method in the air-jet loom of technical scheme 1, the air-jet loom possesses：Weft yarn
Long storage device is surveyed, it has the storage reels of weft yarn, carry out unwinding, locking the weft yarn locking pin and detection weft yarn of weft yarn
Unwinding air ring sensor；Weft insertion nozzle；Multiple pilot jets；Brake, it is braked before wefting insertion terminates to weft yarn；
And weft sensor in woven pieces, it is arranged at the weft yarn traveling shape in the weft yarn travel path in woven pieces, the air-jet loom
State monitoring method is characterised by, weft sensor in above-mentioned woven pieces was arranged on than the braking start time with above-mentioned brake
Corresponding weft yarn front position is believed close to wefting insertion direction upstream side using the weft examining based on weft sensor in above-mentioned woven pieces
Number weft yarn in the middle of due in, with it is unwinding from the unwinding signal of weft yarn according to above-mentioned air ring sensor from above-mentioned storage reels
Hold knit end to the weft yarn of the length of the set location of weft sensor in above-mentioned woven pieces weft yarn unwinding moment at the time of it is poor
To monitor the travel condition of weft yarn.
According to technical scheme 1, the latitude of traveling is detected in the state of influence caused by the brake before wefting insertion terminates is removed
Yarn, therefore will not be influenceed by the braking of brake, the spray of species, Weft insertion nozzle and the pilot jet of weft yarn can be held
The difference of the travel condition of weft yarn caused by the difference of injection pressure.The accurate assurance of the difference of weft yarn travel condition can be in wefting insertion
Utilized in the various controls of function, can aid in the raising of the wefting insertion performance of air-jet loom.
Technical scheme 2 is characterised by, weft sensor in above-mentioned woven pieces is arranged on into the system closest to above-mentioned brake
Preferable weft yarn front position when the unwinding signal of n-th weft yarn of the above-mentioned air ring sensor of dynamic start time is produced.According to skill
Art scheme 2, obtain due in the middle of the unwinding signal of n-th weft yarn (weft yarn unwinding moment) and the weft yarn of air ring sensor when
Difference is carved, therefore does not need the deduction at weft yarn unwinding moment, control is easy.
Technical scheme 3 is characterised by, in the weft yarn front position of the braking start time than above-mentioned brake close to drawing
The weft yarn travel path of latitude direction upstream side sets weft sensor in multiple above-mentioned woven pieces.According to technical scheme 3, by holding
The actual travel condition of the weft yarn of multiple positions in woven pieces, can aid in the raising of the wefting insertion performance of air-jet loom.
The present application can monitor the travel condition of weft yarn exactly.
Brief description of the drawings
Fig. 1 (A) is the sketch for the Weft inserting device for representing the air-jet loom in first embodiment, and Fig. 1 (B) is to represent
Weft yarn locking pin and the sketch of the storage reels of the position relationship of air ring sensor.
Fig. 2 is to represent the various moment in woven pieces and the schematic diagram of weft yarn front end in-position.
Fig. 3 is the schematic diagram for the travel curve for representing weft yarn.
Fig. 4 is the schematic diagram for representing difference at the time of due in is with the weft yarn unwinding moment in the middle of weft yarn.
Fig. 5 is the sketch for wanting portion for representing the Weft inserting device in second embodiment.
Fig. 6 is to represent the various moment in the woven pieces in other embodiment and the schematic diagram of weft yarn front end in-position.
Description of reference numerals：
1... Weft inserting device；2... Weft insertion nozzle；4... weft yarn surveys long storage device；5... reed；6... weft yarn traveling road
Footpath；7... pilot jet；8... storage reels；9... weft yarn locking is sold；10... air ring sensor；11... series nozzle；
12... main burner；13... brake；14... tip sensor；16... control device；17... encoder；18th, 50... is knitted
Weft sensor in width；22... main valve；24... series valve；27... main gas tank；30... master selector；34... secondary valve；
36... secondary gas tank；39... secondary controller；49... display device；α ... angles；A... time difference；ADI, AD2, EA... are bent
Line；B1~B3... weft yarns unwinding moment；BL... weft yarn front position；BT... start time is braked；IE... at the end of wefting insertion
Carve；IS... due in the middle of weft yarn；L, 2L, 3L... ideal weft yarn front position；SP... the optimum pressure of pilot jet；
STl~ST5... stroboscope time datas；TL... woven pieces；X... in woven pieces weft sensor position；Y... weft yarn；
YF... weft yarn travel curve.
Embodiment
First embodiment
First embodiment is illustrated according to Fig. 1~Fig. 4.In addition, in present specification, by weft yarn to warp thread
Wefting insertion in opening, makees the side in opposite direction with wefting insertion on the wefting insertion direction for conveying weft yarn as upstream, wefting insertion direction side
For downstream.In addition, regarding the source side on the direction that compressed air flows as downstream as upstream, the side opposite with source.
Fig. 1 (A) represents the Weft inserting device 1 of air-jet loom.Weft inserting device 1 is made up of such as lower component：Weft insertion nozzle 2；Latitude
Yarn Y yarn feeder 3, it is equipped on the upstream side of Weft insertion nozzle 2；Reed 5, its by be equipped on weft yarn survey long storage device 4 with
And multiple dents in the downstream of Weft insertion nozzle 2 are constituted；And multiple pilot jets 7, they along reed 5 weft yarn travel path 6
Arrange.
The weft yarn Y of yarn feeder 3 is surveyed the rotation of the winding arm (not shown) of long storage device 4 by weft yarn and is brought out, quilt
Wind and be stored in storage reels 8.Long storage device 4, which is surveyed, in weft yarn is provided with air ring sensor 10,10 pairs of the air ring sensor
Weft yarn engages pin 9 and the unwinding of weft yarn Y is detected.As shown in Fig. 1 (B), weft yarn locking pin 9 and air ring sensor 10
It is equipped on around storage reels 8, air ring sensor 10 is arranged in weft yarn Y unwinding side relative to weft yarn locking pin 9
To (reference arrow direction) side.Weft yarn locking pin 9 is electrically connected by distribution 20 with control device 16, is being set in advance in control
In the loom anglec of rotation of device 16, the weft yarn Y for being stored in storage reels 8 is carried out unwinding.Weft yarn locking pin 9 carries out weft yarn
Y it is unwinding at the time of be wefting insertion start time.
Air ring sensor 10 is electrically connected by distribution 21 with control device 16.Air ring sensor 10 in wefting insertion from storage roll
8 unwinding weft yarn Y of cylinder are detected, the unwinding signal of weft yarn is sent to control device 16.Set in advance if control device 16 is received
The unwinding signal of weft yarn of fixed number of times (being set as in the present embodiment three times), then make weft yarn engage pin 9 and act.Weft yarn is engaged
Pin 9 is engaged from the unwinding weft yarn Y of storage reels 8, terminates wefting insertion.
In addition, engaging the locking of pin 9 weft yarn Y action moment according in order to by the latitude of the length suitable with woven pieces for weft yarn
Winding times that yarn Y is stored in storage reels 8 and needed are set.In the present embodiment, three times are wound to storage reels 8
Weft yarn Y length is suitable with woven pieces, if therefore control device 16 is set to receive the weft yarn solution of three air ring sensors 10
Relax signal, then engage the actuating signal that pin 9 sends locking weft yarn Y to weft yarn.The weft examining signal of air ring sensor 10 is latitude
Yarn Y is from the unwinding signals of storage reels 8, in control device 16, according to the loom rotary angle signal obtained from encoder 17
To be identified as the weft yarn unwinding moment.
Weft insertion nozzle 2 by extraction storage reels 8 weft yarn Y series nozzle 11 and by weft yarn Y-direction weft yarn travel path 6
The main burner 12 of wefting insertion is constituted, the function of possessing from the unwinding weft yarn Y of storage reels 8 and conveyed to weft yarn travel path 6.Auxiliary spray
Mouth 7 possesses the conveying function that the weft yarn Y being admitted to is conveyed along weft yarn travel path 6.It is provided with the upstream side of series nozzle 11
Brake 13, the brake 13 is braked before wefting insertion terminates to the weft yarn Y of traveling.Brake 13 uses mechanical brake
Or the known features such as pneumatic brake device.
Main burner 12, pilot jet 7 and reed 5 are equipped on slay (not shown), along the fore-and-aft direction of air-jet loom
Reciprocally swinging.In addition, series nozzle 11, brake 13, weft yarn survey long storage device 4 and yarn feeder 3 be fixed on it is mounted
In the frame (not shown) or the bracket (not shown) etc. of floor (not shown) of air-jet loom.
Tip sensor 14 is equipped at the end of knitting in the downstream of weft yarn travel path 6.14 pairs of tip sensor reach with
The weft yarn Y for knitting end of the opposite side of main burner 12 (anti-wefting insertion side) is detected.Tip sensor 14 passes through distribution 15 and control
Device 16 processed is electrically connected.Control device 16 detects that wefting insertion is bad according to the presence or absence of weft examining signal of tip sensor 14
Produce.In addition, the weft examining signal of tip sensor 14 is the arriving signal for knitting end of the anti-wefting insertion side of weft yarn Y-direction, in control
In device 16, wefting insertion finish time is identified as according to the loom rotary angle signal obtained from encoder 17.
Weft yarn travel path 6 in the woven pieces TL (reference picture 2) than tip sensor 14 by upstream side is provided with woven pieces
Interior weft sensor 18.Weft sensor 18 is electrically connected by distribution 19 with control device 16 in woven pieces.Weft yarn is sensed in woven pieces
The weft examining signal of device 18, according to the loom rotary angle signal obtained from encoder 17, is identified as in control device 16
The weft yarn centre due in of the set location of weft sensor 18 in woven pieces is reached by the weft yarn Y of wefting insertion front end.
In addition, in the present embodiment, Weft inserting device 1 only shows one group, but it is also possible to be configured to be equipped with more than two
Multicolor weft insertion device.In addition, the concept of multicolor weft insertion device also includes the Weft inserting device 1 for setting multigroup homochromy weft yarn Y
Situation.In addition, pilot jet 7 is used in conjunction with by Weft inserting device 1 more than two.
The supply for being compressed air, the main valve 22 stopped being connected with by pipe arrangement 23 in main burner 12.In series nozzle
11 are connected with the supply for being compressed air, the series valve 24 stopped by pipe arrangement 25.Main valve 22 passes through pipe arrangement 26 and main gas tank
27 connections.In addition, series valve 24 is connected by pipe arrangement 28 with the main gas tank 27 shared with main valve 22.Main gas tank 27 is via principal pressure
Meter 29, master selector 30, source pressure gauge 31 and filter 32 connect with being arranged on the shared air compressor 33 of textile mills
Connect.In main gas tank 27, storage has the compression for being supplied from air compressor 33 and being adjusted to set pressure by master selector 30 empty
Gas.In addition, the pressure of the compressed air supplied to main gas tank 27 is detected often by principal pressure meter 29.
Pilot jet 7 is divided into six groups as an example, and each group has four pilot jets 7.With each group accordingly
Six secondary valves 34 are arranged, the pilot jet 7 of each group is connected by pipe arrangement 35 with each secondary valve 34 respectively.In addition, pilot jet 7 is not
Six groups are confined to, be may be constructed to set multiple groups according to woven pieces, secondary valve 34 is arranged in correspondence with multiple with each sets of auxiliary blowers.
Each secondary valve 34 is connected with shared secondary gas tank 36.
Secondary gas tank 36 is connected using pipe arrangement 37 via secondary stress meter 38 with secondary controller 39.Secondary controller 39 utilizes pipe arrangement 40
It is connected with connection principal pressure meter 29 with the pipe arrangement 41 of master selector 30.In secondary gas tank 36, storage, which has from air compressor 33, to be supplied
Give and be adjusted to set the compressed air of pressure by secondary controller 39.In addition, the pressure of the compressed air supplied to secondary gas tank 36
Detected often by secondary stress meter 38.
13 points of main valve 22, series valve 24, secondary valve 34, source pressure gauge 31, principal pressure meter 29, secondary stress meter 38 and brake
Do not electrically connected by distribution 42,43,44,45,46,47,48 with control device 16.It is preset with control device 16 for making
During main valve 22, series valve 24, secondary valve 34 and the action moment of the action of brake 13 and action.In addition, control device 16
The detection signal of reception source pressure gauge 31, principal pressure meter 29 and secondary stress meter 38.
Instruct and believe from the output action of control device 16 at the time of the wefting insertion start time that the action of pin 9 is engaged than weft yarn is early
Number, spray compressed air from main burner 12 and series nozzle 11 to main valve 22 and series valve 24.Moved than weft yarn locking pin 9
Make and engage the period of the weft yarn Y of storage reels 8 morning wefting insertion finish time, from control device 16 to the output action of brake 13
Command signal.The weft yarn Y that 13 pairs of brake is advanced at a high speed is braked to reduce weft yarn Y gait of march, is relaxed weft yarn Y and is being drawn
The impact of latitude finish time.
Control device 16 is attached with the display device 49 with display function and input function.Display device 49 can be
Schematic diagram or other various display projects and data, Neng Gou of the display picture display (not shown) for example shown in Fig. 2~Fig. 4
Newly inputted in display picture, rewrite shown display items purpose data.
In fig. 2, Fig. 2 (a) represents the matching somebody with somebody in woven pieces TL of weft sensor 18 in tip sensor 14 and woven pieces
Seated position, Fig. 2 (b) represents the unwinding moment B1 of weft yarn of the air ring sensor 10 in woven pieces TL, B2, B3, weft yarn is passed in woven pieces
Due in IS, the wefting insertion finish time IE and brake 13 of tip sensor 14 braking start in the middle of the weft yarn of sensor 18
Moment BT.
In Fig. 2 (a), position L, 2L, 3L represent since woven pieces TL knit end start and storage reels 8 a circle amount, two
The suitable weft yarn Y of circle amount, the storing weft threads length of three circle amounts front position.In the case where weft yarn Y does not advance loosely,
First time in air ring sensor 10, second, weft yarn unwinding moment B1, B2, B3 when the unwinding signal of third time weft yarn is produced,
Weft yarn Y front end is located at position L, 2L, 3L respectively, therefore in present specification, below, position L, 2L, 3L is referred to as into reason
Think weft yarn front position.
In Fig. 2 (b), the unwinding moment B1~B3 of weft yarn is represented based on the first time in air ring sensor 10, respectively
Secondary, the unwinding signal of third time weft yarn the loom anglec of rotation.In addition, the loom anglec of rotation can be produced according to the unwinding signal of weft yarn
The rotary angle signal of encoder 17 is held when raw.Hereinafter, the loom anglec of rotation at various moment is also according to encoder 17
Rotary angle signal hold.
Wefting insertion finish time IE represents the loom anglec of rotation when weft examining signal of tip sensor 14 is produced.Braking
Start time BT is to be pre-set in control device 16 in the way of starting weft yarn Y braking before wefting insertion finish time IE
The loom anglec of rotation.
Weft sensor 18 is arranged on the braking start time BT than starting action in wefting insertion with brake 13 in woven pieces
Corresponding weft yarn Y front position BL is the latitude in the woven pieces TL inferred according to braking start time BT and weft yarn Y speed
Yarn Y front position BL leans on wefting insertion direction upstream side.
In the present embodiment, in woven pieces weft sensor 18 be arranged on since woven pieces TL knit end and storage reels
The corresponding preferable weft yarn front position 2L of storing weft threads length of 8 two circle amounts.In the case where weft yarn Y does not advance loosely,
Weft yarn Y reaches preferable weft yarn front position 2L, therefore the latitude that weft sensor 18 is detected in woven pieces in the unwinding moment B3 of weft yarn
Due in IS should be consistent with the unwinding moment B3 of weft yarn in the middle of yarn.
However, the injection pressure of pilot jet 7 is low and transportation performance of pilot jet 7 than Weft insertion nozzle 2 weft yarn solution
In the case that Shu Xingneng is weak, the weft yarn Y in traveling produces relaxation, therefore when the due in IS delays of weft yarn centre and unwinding weft yarn
Carve poor Δ at the time of B3.The size energy of poor Δ at the time of by observing the due in IS and unwinding moment B3 of weft yarn in the middle of the weft yarn
Enough hold the travel condition of the weft yarn Y in wefting insertion.The unwinding moment B3 of third time weft yarn is the braking start time BT of brake 13
The weft yarn unwinding moment before.
Therefore, weft sensor 18 can be to the weft yarn Y not influenceed by the braking action of brake 13 row in woven pieces
Enter state to be detected.In addition, obtaining the unwinding signal of third time weft yarn (the unwinding moment B3 of weft yarn) and latitude of air ring sensor 10
Poor Δ at the time of due in IS in the middle of yarn, therefore with not setting weft yarn in woven pieces to sense in preferable weft yarn front position 2L
The situation of device 18 is compared, it is not necessary to which the deduction at aftermentioned such weft yarn unwinding moment, control is easy.
Fig. 3 represents weft yarn travel curve YF, and transverse axis represents the loom anglec of rotation, and the longitudinal axis is represented since wefting insertion to wefting insertion knot
The front position of weft yarn Y on the wefting insertion direction of beam.Weft yarn travel curve YF is will to be seen at five in woven pieces TL using stroboscopic
Data STl at the time of surveying device detection weft yarn Y front position~ST5 is curved and is made.
Time data ST1 and wefting insertion start time (weft yarn locking pin 9 unwinding weft yarn Y at the time of) unanimously, time data ST5
It is consistent with wefting insertion finish time IE.Air ring sensor 10 is in the way of engaging pin 9 than weft yarn more to weft yarn Y unwinding direction skew
Set ((B) of reference picture 1), therefore the unwinding moment B1 of weft yarn is detected than time data ST1 delays.
In braking start time BT between wefting insertion finish time IE, weft yarn Y is in the way of becoming low velocity by certain
Braking action, therefore wefting insertion spray caused by the difference of the injection pressure of weft yarn Y species, Weft insertion nozzle 2 and pilot jet 7
The unwinding performance of weft yarn of mouth 2 and the difference of the weft yarn transportation performance of pilot jet 7 are difficult to occur in weft yarn travel curve YF.
Weft yarn before weft sensor 18 is arranged on braking start time BT in woven pieces in present embodiment is unwinding
Moment B3 preferable weft yarn front position 2L, therefore by using due in IS in the middle of weft yarn, can not be by brake 13
Hold and advanced caused by the difference of the injection pressure of weft yarn Y species, Weft insertion nozzle 2 and pilot jet 7 in the influence ground of braking
The difference of state.
Therefore, by holding the of due in IS and air ring sensor 10 in the middle of the weft yarn of weft sensor 18 in woven pieces
Poor Δ, can monitor the injection of weft yarn Y species, Weft insertion nozzle 2 and pilot jet 7 at the time of three weft yarns unwinding moment B3
The difference of weft yarn travel condition caused by the difference of pressure.Hold due in IS and the unwinding moment B3 of weft yarn in the middle of weft yarn when
The unwinding performance of weft yarn of Weft insertion nozzle 2 and the latitude of pilot jet 7 can be known exactly by carving poor Δ, monitoring weft yarn travel condition
The poised state of yarn transportation performance, can greatly facilitate compressed air pressure, the spray of Weft insertion nozzle 2 and pilot jet 7
Penetrate setting, the control at moment.
The weft yarn of poor Δ, which is advanced, at the time of as using based on due in IS in the middle of weft yarn and weft yarn unwinding moment B3 lies prostrate
One example of the control of the Weft inserting device 1 of the monitoring of state, in Fig. 4 to the pressure for the compressed air sprayed from pilot jet 7
Establishing method is illustrated.AD1 is the curve of poor Δ at the time of representing the due in IS and unwinding moment B3 of weft yarn in the middle of weft yarn.
Curve AD1 is sprayed in the state of the injection pressure of adjustment Weft insertion nozzle 2 remains wefting insertion finish time IE necessarily, by auxiliary
It is when the injection pressure of mouth 7 carries out height various changes, poor at the time of due in IS and weft yarn unwinding moment B3 in the middle of weft yarn
Δ it is curved and obtain.
On the other hand, curve AD2 be by according to it is during the injection pressure of various change pilot jets 7, sensed by end
The unwinding signal of change of weft yarn of wefting insertion finish time IE that device 14 is detected and air ring sensor 10 go out with weft yarn is unwinding terminates
Difference curved curve at the time of moment.In addition, weft yarn unwinding finish time is examined by presetting from by air ring sensor 10
The weft yarn Y measured unwinding moment to weft yarn engages the weft yarn unwinding time of pin 9 and to the third time weft yarn of air ring sensor 10
Obtained at the time of during unwinding signal plus the weft yarn unwinding time.
Curve AD2 started according to the action of brake 13 after weft examining signal and the unwinding signal of weft yarn try to achieve,
So even the injection pressure of change pilot jet 7, the variable quantity of time difference is also smaller.On the other hand, curve AD1 and curve
AD2 is compared, and the variable quantity of time difference is larger.Because asking weft yarn due in and the inspection at weft yarn unwinding moment of time difference
Survey period be the weft yarn Y based on brake 13 braking action after or braking action before difference, curve AD1 more clearly shows
The difference of travel condition caused by the difference for the injection pressure for going out weft yarn Y species, Weft insertion nozzle 2 and pilot jet 7.
Therefore, by curve AD1, Weft insertion nozzle 2 corresponding with the injection pressure of pilot jet 7 can clearly be read
The unwinding performance of weft yarn and the poised state of the weft yarn transportation performance of pilot jet 7.For example, in the case of figure 4, can be by curve
In AD1 the pressure of the position for the vicinity that time difference is widely varied as pilot jet 7 optimum pressure SP.
In addition, it is additional by weft yarn Y it is each injection pressure under advance when, weft yarn Y extend and be changed into without loose state when
Curved curve EA is carved, it is whether appropriate and optimum pressure SP can be held thus, it is possible to the extension state that judges weft yarn Y.
Second embodiment
Fig. 5 represents second embodiment, for first embodiment identical structure, carried out with identical reference
Illustrate, omit detailed description.Second embodiment is configured at two of the weft yarn travel path 6 in woven pieces TL set woven pieces
Interior weft sensor 18,50.Weft sensor 18 is and first embodiment identical structure in woven pieces.
Weft sensor 50 is arranged on second of weft yarn based on air ring sensor 10 in weft yarn travel path 6 in woven pieces
The weft yarn Y of the unwinding moment B2 (reference picture 2) of weft yarn of unwinding signal preferable weft yarn front position.Weft sensor 50 in woven pieces
Position be configured in than weft sensor in woven pieces 18 position more lean on wefting insertion direction upstream side.In addition, weft yarn is passed in woven pieces
Sensor 50 is electrically connected by distribution 51 with control device 16.
Weft sensor 50 is detected before brake 13 starts the braking start time BT (reference picture 2) of action in woven pieces
Weft yarn Y, therefore, it is possible to not influenceed by brake 13, and monitors weft yarn Y species, wefting insertion spray in the same manner as first embodiment
The difference of weft yarn Y travel condition caused by the difference of the injection pressure of mouth 2 and pilot jet 7.In addition, woven pieces can be passed through
Interior weft sensor 18,50 detects weft yarn Y at two, therefore, it is possible to realize the monitoring of more accurately weft yarn travel condition, helps
Unwinding performance and the control of transportation performance in weft yarn Y.
The present application is not limited to the structure of the respective embodiments described above, the energy in the range of the purport of the present application
Various changes are enough carried out, can be implemented as follows.
(1) in figure 6, Fig. 6 (a) represents that weft sensor 18 is in woven pieces TL in tip sensor 14 and woven pieces
Allocation position, Fig. 6 (b) represents the various moment in woven pieces TL.In woven pieces weft sensor 18 can be only fitted to from air ring
The position of preferable weft yarn front position 2L the skews relative unwinding moment B3 of third time weft yarn of sensor 10.In Fig. 6 implementation
In mode, the preferable weft yarn front position 2L position X for falling back α are provided with weft sensor 18 in woven pieces on wefting insertion direction.
It is changed into 2L- α, preferable weft yarn front position and the position that weft sensor 18 in woven pieces is set from the unwinding weft yarn length of storage reels 8
Put X it is consistent when the unwinding moment BX of weft yarn according to weft yarn unwinding moment B2 and B3 infer.Control device 16 is according to latitude in woven pieces
Poor Δ holds weft yarn Y traveling shape at the time of due in IS and weft yarn unwinding moment BX in the middle of the weft yarn of yarn sensor 18
State.In this case, the set location of weft sensor 18 is not limited to and the weft yarn from air ring sensor 10 in woven pieces
The free degree increase of the set location of weft sensor 18 in corresponding preferable weft yarn front position L, 2L of unwinding signal, woven pieces.
(2) in first, second and other embodiment, Weft insertion nozzle 2 is configured to be not provided with series nozzle 11
And main burner 12 is only set.
(3) in the first embodiment, it is configured to weft sensor in woven pieces 18 being arranged on preferable weft yarn front end
The due in IS and unwinding moment B2 of second of weft yarn differential seat angle in the middle of position L, observation weft yarn.
Claims (3)
1. a kind of weft yarn travel condition monitoring method in air-jet loom, the air-jet loom possesses：Weft yarn surveys long storage device,
It has the storage reels of weft yarn, carries out unwinding, locking the weft yarn locking pin of weft yarn and the unwinding air ring of detection weft yarn
Sensor；Weft insertion nozzle；Multiple pilot jets；Brake, it is braked before wefting insertion terminates to weft yarn；And latitude in woven pieces
Yarn sensor, it is arranged at the weft yarn travel path in woven pieces,
Weft yarn travel condition in the air-jet loom monitors that method is characterised by,
Weft sensor in the woven pieces is arranged on weft yarn front end position more corresponding than braking start time with the brake
Nearly wefting insertion direction upstream side is rested against,
Using due in the middle of the weft yarn based on the weft examining signal of weft sensor in the woven pieces, with from the storage
Reel has carried out knitting end to weft yarn in the woven pieces from what the unwinding signal of weft yarn according to the air ring sensor was held to weft yarn
Difference monitors the travel condition of weft yarn at the time of the unwinding weft yarn of the length of the set location of sensor unwinding moment.
2. the weft yarn travel condition monitoring method in air-jet loom according to claim 1, it is characterised in that
Weft sensor in the woven pieces is arranged on the air ring sensing closest to the braking start time of the brake
Preferable weft yarn front position when the unwinding signal of n-th weft yarn of device is produced.
3. the weft yarn travel condition monitoring method in air-jet loom according to claim 1 or 2, it is characterised in that
Than the brake braking start time weft yarn front position close to wefting insertion direction upstream side weft yarn traveling road
Footpath sets weft sensor in multiple woven pieces.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-182415 | 2015-09-16 | ||
| JP2015182415A JP6135731B2 (en) | 2015-09-16 | 2015-09-16 | Method of monitoring weft flying condition in air jet loom |
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| Publication Number | Publication Date |
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| CN107034575A true CN107034575A (en) | 2017-08-11 |
| CN107034575B CN107034575B (en) | 2018-09-07 |
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| CN201610811539.4A Active CN107034575B (en) | 2015-09-16 | 2016-09-08 | Weft yarn travel condition in air-jet loom monitors method |
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| Country | Link |
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| EP (1) | EP3144422B1 (en) |
| JP (1) | JP6135731B2 (en) |
| CN (1) | CN107034575B (en) |
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| CN109629088A (en) * | 2019-02-27 | 2019-04-16 | 山东日发纺织机械有限公司 | The method of jet loom for drawing weft yarn device and its adjust automatically |
| CN109943957A (en) * | 2017-12-13 | 2019-06-28 | 株式会社丰田自动织机 | The wefting insertion diagnostic method of jet type loom |
| CN110453344A (en) * | 2018-05-08 | 2019-11-15 | 株式会社丰田自动织机 | The wefting insertion control method of air-jet loom |
| CN114318632A (en) * | 2020-10-09 | 2022-04-12 | 株式会社丰田自动织机 | Weft insertion device of air jet loom |
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| JP7021896B2 (en) * | 2017-10-11 | 2022-02-17 | 津田駒工業株式会社 | How to set warp and weft flight information on an air injection loom |
| JP7057117B2 (en) * | 2017-12-15 | 2022-04-19 | 津田駒工業株式会社 | How to set warp and weft flight information on an air injection loom |
| CN109949435A (en) * | 2019-02-27 | 2019-06-28 | 深圳市海弘装备技术有限公司 | Intelligent unattended spinning and weaving workshop monitoring method and system |
| WO2021024340A1 (en) | 2019-08-05 | 2021-02-11 | 大浩研熱株式会社 | Hydroponic tank and drainage part |
| JP7415904B2 (en) * | 2020-12-08 | 2024-01-17 | 株式会社豊田自動織機 | Air jet loom weft insertion control device |
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Also Published As
| Publication number | Publication date |
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| EP3144422B1 (en) | 2018-10-17 |
| JP2017057516A (en) | 2017-03-23 |
| EP3144422A3 (en) | 2017-04-26 |
| CN107034575B (en) | 2018-09-07 |
| EP3144422A2 (en) | 2017-03-22 |
| JP6135731B2 (en) | 2017-05-31 |
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