CN107034575B - Weft yarn travel condition in air-jet loom monitors method - Google Patents
Weft yarn travel condition in air-jet loom monitors method Download PDFInfo
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- CN107034575B CN107034575B CN201610811539.4A CN201610811539A CN107034575B CN 107034575 B CN107034575 B CN 107034575B CN 201610811539 A CN201610811539 A CN 201610811539A CN 107034575 B CN107034575 B CN 107034575B
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- weft yarn
- weft
- unwinding
- sensor
- time
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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
- 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
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Abstract
The present invention relates to the weft yarn travel conditions in air-jet loom to monitor method, accurately monitors the travel condition of weft yarn.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 the difference of travel condition caused by the type of weft yarn, the difference of the injection pressure of Weft insertion nozzle and pilot jet can not be held by the braking of brake with being influenced.At the time of therefore, it is possible to accurately hold weft yarn centre arrival time (IS) and the third time weft yarn unwinding moment (B3) of air ring sensor based on weft sensor in woven pieces poor (Δ).Arrival time (IS) can monitor the equilibrium state of the weft yarn transportation performance of the unwinding performance of the weft yarn of Weft insertion nozzle and pilot jet with poor (Δ) at the time of the weft yarn unwinding moment (B3) among 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 in woven pieces by the weft yarn of wefting insertion using pilot jet, terminates wefting insertion.It is known logical
It crosses and holds 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, disclosing a kind of Weft insertion controller of air injection loom in patent document 1, its object is to will not
Lead to the increase of unwanted specific air consumption, and controls 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 configure at regular intervals.
In Weft insertion controller, when wefting insertion, the unwinding sensor of weft yarn near 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 being arranged in the side opposite with main burner arrives
Up to sensor to being detected to the arrival time of anti-wefting insertion side by the weft yarn of wefting insertion.Main burner by the unwinding sensor of weft yarn to be examined
Unwinding time of the weft yarn measured controls injection pressure as the mode of desired value.
In addition, pilot jet controls spray in such a way that the time difference of the arrival time of weft yarn and unwinding time become desired value
Injection pressure reduces the complications of the weft yarn in wefting insertion.In addition, causing the variable quantity of time difference to become advising in the change because of injection pressure
When below definite value, the time difference at this time is changed to desired value, inhibits the increase of unwanted specific air consumption.
Patent document 1：Japanese Unexamined Patent Publication 4-240249 bulletins
In recent years, it is to be on active service more than 1000 turns of high-speed air-jet looms per minute mostly.It is knitted in the jet to 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 larger, and the worry of weft yarn cut-out caused by impacting increases.
In order to mitigate the impact at the end of such wefting insertion, the weft yarn of traveling is braked before generally using at the end of wefting insertion
Brake unit.
In the air-jet loom for being provided with brake unit, the weft yarn travel condition after braking, before wefting insertion terminates is difficult to out
The now difference caused by the difference of the injection pressure of the type of weft yarn, Weft insertion nozzle and pilot jet.Therefore, as patent document
Weft insertion controller disclosed in 1 is such, 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 the difference of the injection pressure of the type because of weft yarn, Weft insertion nozzle and pilot jet occur caused by the time difference
Difference, it is difficult to accurately hold weft yarn travel condition.
Invention content
The purpose of the present application is accurately to monitor the travel condition of weft yarn.
In weft yarn travel condition monitoring method in the air-jet loom of technical solution 1, the air-jet loom has：Weft yarn
Long storage device is surveyed, the storage reels with 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 brakes weft yarn before wefting insertion terminates；
And weft sensor in woven pieces, the weft yarn travel path being set in woven pieces, the weft yarn traveling shape in the air-jet loom
State monitoring method is characterized in that, weft sensor in above-mentioned woven pieces is arranged than the braking start time with above-mentioned brake
Corresponding weft yarn front position is close to wefting insertion direction upstream side, at the time of the moment unwinding with weft yarn using arrival time among weft yarn
Difference monitors the travel condition of weft yarn, the arrival time among above-mentioned weft yarn, weft yarn based on weft sensor in above-mentioned woven pieces
Detect signal, it is unwinding from the weft yarn solution according to above-mentioned air ring sensor from above-mentioned storage reels at the above-mentioned weft yarn unwinding moment
What the signal that relaxes was held knits end to the weft yarn of the length of the installation position of weft sensor in above-mentioned woven pieces.
According to technical solution 1, the latitude of traveling is detected in the state of being influenced caused by the brake before removing wefting insertion and terminating
Yarn, therefore will not be influenced by the braking of brake, the spray of the type, Weft insertion nozzle and 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
It is utilized in the various controls of function, can aid in the raising of the wefting insertion performance of air-jet loom.
Technical solution 2 is characterized in that, weft sensor in above-mentioned woven pieces is arranged in the system closest to above-mentioned brake
Ideal weft yarn front position when the unwinding signal of n-th weft yarn of the above-mentioned air ring sensor of dynamic start time generates.According to skill
Art scheme 2, obtain arrival time among 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 solution 3 is characterized in that, in the weft yarn front position of the braking start time than above-mentioned brake close to drawing
Weft sensor in multiple above-mentioned woven pieces is arranged in the weft yarn travel path of latitude direction upstream side.According to technical solution 3, pass through assurance
The practical 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 accurately monitor the travel condition of weft yarn.
Description of the drawings
(A) of Fig. 1 is the schematic diagram for the Weft inserting device for indicating the air-jet loom in first embodiment, and (B) of Fig. 1 is to indicate
The schematic diagram of weft yarn locking pin and the storage reels of the position relationship of air ring sensor.
Fig. 2 is the schematic diagram for indicating various moment and weft yarn front end in-position in woven pieces.
Fig. 3 is the schematic diagram for the travel curve for indicating weft yarn.
Fig. 4 is the schematic diagram of difference at the time of indicating unwinding with weft yarn moment arrival time among weft yarn.
Fig. 5 is the schematic diagram for the mian part for indicating the Weft inserting device in second embodiment.
Fig. 6 is the schematic diagram at the various moment and weft yarn front end in-position in the woven pieces indicated in other embodiment.
Reference sign：
1... Weft inserting device；2... Weft insertion nozzle；4... weft yarn surveys long storage device；5... reed；6... weft yarn traveling road
Diameter；7... pilot jet；8... storage reels；9... weft yarn locking pin；10... air ring sensor；11... series nozzle；
12... main burner；13... brake；14... tip sensor；16... control device；17... encoder；18,50... 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
It carves；IS... arrival time among 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.
Specific implementation mode
First embodiment
First embodiment is illustrated according to Fig. 1~Fig. 4.In addition, in the specification of the present application, by weft yarn to warp thread
Wefting insertion in opening is made the side opposite with wefting insertion direction on the wefting insertion direction for conveying weft yarn as upstream, wefting insertion direction side
For downstream.In addition, using the source side on the direction of compressed air flowing as upstream, the side opposite with source as downstream.
(A) of Fig. 1 indicates the Weft inserting device 1 of air-jet loom.Weft inserting device 1 is made of such as lower component：Weft insertion nozzle 2；Latitude
The yarn feeder 3 of yarn Y, is equipped on the upstream side of Weft insertion nozzle 2；Reed 5, by be equipped on weft yarn survey long storage device 4 with
And multiple dents in the downstream side of Weft insertion nozzle 2 are constituted；And multiple pilot jets 7, their weft yarn travel paths 6 along reed 5
It is arranged.
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 by is brought out, quilt
It winds and is stored in storage reels 8.Long storage device 4 is surveyed in weft yarn and is provided with air ring sensor 10, and the air ring sensor 10 is right
Weft yarn engages pin 9 and the unwinding of weft yarn Y is detected.As shown in (B) of Fig. 1, weft yarn engages pin 9 and air ring sensor 10
It is equipped on around storage reels 8, air ring sensor 10 is arranged relative to weft yarn locking pin 9 in the unwinding side of weft yarn Y
To (reference arrow direction) side.Weft yarn locking pin 9 is electrically connected by wiring 20 with control device 16, is being set in advance in control
In the loom rotation angle of device 16, the weft yarn Y to being stored in storage reels 8 carries out unwinding.Weft yarn engages pin 9 and 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 wiring 21 with control device 16.Air ring sensor 10 in wefting insertion from storage roll
8 unwinding weft yarn Y of cylinder are detected, and the unwinding signal of weft yarn is sent to control device 16.It is set in advance if control device 16 receives
The unwinding signal of weft yarn of fixed number (being set as in the present embodiment three times) then acts weft yarn locking pin 9.Weft yarn engages
The locking of pin 9 terminates wefting insertion from the unwinding weft yarn Y of storage reels 8.
In addition, engaging the action moment of weft yarn Y according in order to by the latitude with the comparable length of woven pieces for weft yarn locking pin 9
Yarn Y is stored in storage reels 8 and the winding times that need are set.In the present embodiment, winding is three times to storage reels 8
The length of weft yarn Y is suitable with woven pieces, if therefore control device 16 be set to receive the weft yarn solution of air ring sensor 10 three times
Relax signal, then the actuating signal of locking weft yarn Y is sent to weft yarn locking pin 9.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, and is had from the function of storage reels 8 unwinding weft yarn Y and conveyed to weft yarn travel path 6.Auxiliary spray
Mouth 7 has the conveying function that the weft yarn Y being admitted to is conveyed along weft yarn travel path 6.It is provided in the upstream side of series nozzle 11
Brake 13, the brake 13 brake the weft yarn Y of traveling before wefting insertion terminates.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 front-rear 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) of air-jet loom or the bracket (not shown) etc. of floor (not shown).
It is equipped with tip sensor 14 at the end of knitting in the downstream side of weft yarn travel path 6.Tip sensor 14 to 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 wiring 15 and control
Device 16 processed is electrically connected.Control device 16 is undesirable to detect wefting insertion according to the presence or absence of weft examining signal of tip sensor 14
It generates.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, controlling
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 (with reference to Fig. 2) on the upstream side of tip sensor 14 is being provided with woven pieces
Interior weft sensor 18.Weft sensor 18 is electrically connected by wiring 19 with control device 16 in woven pieces.Weft yarn senses 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 arrival time of the installation position of weft sensor 18 in woven pieces is reached by the front end of the weft yarn Y of wefting insertion.
In addition, in the present embodiment, Weft inserting device 1 only shows one group, but can also be configured to be equipped with more than two
Multicolor weft insertion device.In addition, the concept of multicolor weft insertion device also includes that the Weft inserting device 1 of multigroup homochromy weft yarn Y is arranged
Situation.In addition, pilot jet 7 is used in conjunction with by Weft inserting device 1 more than two.
The main valve 22 of the supply, the stopping that carrying out compressed air is connected with by piping 23 in main burner 12.In series nozzle
11 are connected with the series valve 24 of the supply, the stopping that carrying out compressed air by piping 25.Main valve 22 passes through piping 26 and main gas tank
27 connections.In addition, series valve 24 is connect by piping 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 and the shared air compressor 33 for being arranged on textile mills connect
It connects.In main gas tank 27, storage has the compression for being supplied from air compressor 33 and being adjusted to setting 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.Accordingly with each group
Six secondary valves 34 are arranged, the pilot jet 7 of each group is connect by piping 35 with each secondary valve 34 respectively.In addition, pilot jet 7 is not
Six groups are confined to, may be constructed to be arranged multiple groups according to woven pieces, secondary valve 34 is arranged in correspondence with multiple with each sets of auxiliary blowers.
Each pair valve 34 is connect with shared secondary gas tank 36.
Secondary gas tank 36 is connect via secondary stress meter 38 with secondary controller 39 using piping 37.Secondary controller 39 utilizes piping 40
It is connect with the piping 41 of master selector 30 with connection principal pressure meter 29.In secondary gas tank 36, storage, which has from air compressor 33, to be supplied
Give and be adjusted to by secondary controller 39 compressed air of setting pressure.In addition, the pressure of the compressed air supplied to secondary gas tank 36
It is detected often by secondary stress meter 38.
Main valve 22, series valve 24, secondary valve 34, source pressure gauge 31, principal pressure meter 29, secondary stress meter 38 and brake 13 divide
It is not electrically connected with control device 16 by wiring 42,43,44,45,46,47,48.It is preset in control device 16 and is useful 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.
It instructs and believes from 16 output action of control device at the time of the wefting insertion start time acted than weft yarn locking pin 9 is early
Number, from main burner 12 and series nozzle 11 compressed air is sprayed to main valve 22 and series valve 24.More dynamic than weft yarn locking pin 9
The period for making and engaging morning wefting insertion finish time of the weft yarn Y of storage reels 8, from control device 16 to 13 output action of brake
Command signal.The weft yarn Y that brake 13 advances to high speed is braked to reduce the gait of march of weft yarn Y, is mitigated 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
Show picture display such as Fig. 2~schematic diagram shown in Fig. 4 (not shown) or other various display projects and data, Neng Gou
It newly inputted on display picture, rewrite shown display items purpose data.
In fig. 2, (a) of Fig. 2 indicates the matching in woven pieces TL of weft sensor 18 in tip sensor 14 and woven pieces
Seated position, (b) of Fig. 2 indicate that weft yarn passes in the unwinding moment B1, B2 of weft yarn, B3, woven pieces of the air ring sensor 10 in woven pieces TL
The braking of weft yarn centre arrival time IS of sensor 18, the wefting insertion finish time IE and brake 13 of tip sensor 14 start
Moment BT.
In (a) of Fig. 2, position L, 2L, 3L indicate since woven pieces TL knit end start and storage reels 8 a circle amount, two
The front position of the comparable weft yarn Y of storing weft threads length of circle amount, three circle amounts.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 generates,
The front end of weft yarn Y is located at position L, 2L, 3L, therefore in the specification of the present application, hereinafter, position L, 2L, 3L are known as managing
Think weft yarn front position.
In (b) of Fig. 2, the unwinding moment B1~B3 of weft yarn indicate respectively based in air ring sensor 10 first time,
Secondary, the unwinding signal of third time weft yarn loom rotation angle.In addition, loom rotation angle 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 rotation angle at various moment is also according to encoder 17
Rotary angle signal hold.
Wefting insertion finish time IE indicates the loom rotation angle when weft examining signal of tip sensor 14 generates.Braking
Start time BT is to be pre-set in control device 16 in a manner of starting the braking of weft yarn Y before wefting insertion finish time IE
Loom rotation angle.
Weft sensor 18 is arranged on the braking start time BT than starting action in wefting insertion with brake 13 in woven pieces
The front position BL of corresponding weft yarn Y is the latitude in the woven pieces TL inferred according to the speed of braking start time BT and weft yarn Y
The front position BL of yarn Y 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 ideal 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 ideal weft yarn front position 2L, therefore the latitude detected by weft sensor in woven pieces 18 in the unwinding moment B3 of weft yarn
Arrival time IS should be consistent with the unwinding moment B3 of weft yarn among yarn.
However, the injection pressure in pilot jet 7 is low and the 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 generates relaxation, therefore when the arrival time IS delay of weft yarn centre and unwinding weft yarn
Difference Δ at the time of carving B3.The size energy of difference Δ at the time of by observing the moment B3 unwinding with weft yarn of arrival time IS among 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 row for the weft yarn Y not influenced by the braking action of brake 13 in woven pieces
It is detected into state.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
Difference Δ at the time of arrival time IS among yarn, therefore sensed with weft yarn in woven pieces not being arranged in ideal weft yarn front position 2L
The case where device 18, is compared, and the deduction at aftermentioned such weft yarn unwinding moment is not needed, and control is easy.
Fig. 3 indicates that weft yarn travel curve YF, horizontal axis indicate that loom rotation angle, the longitudinal axis are indicated 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 stroboscopic will to be utilized to see at five in woven pieces TL
Data STl~ST5 is curved and manufactured at the time of surveying the front position of device detection weft yarn Y.
Time data ST1 and wefting insertion start time (at the time of weft yarn engages 9 unwinding weft yarn Y of pin) unanimously, time data ST5
It is consistent with wefting insertion finish time IE.Air ring sensor 10 than weft yarn locking pin 9 to the unwinding direction of weft yarn Y in a manner of more deviating
It is arranged ((B) referring to Fig.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 a manner of becoming low velocity by certain
Braking action, therefore caused by the difference of the injection pressure of the type of weft yarn Y, Weft insertion nozzle 2 and pilot jet 7 wefting insertion spray
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
The ideal weft yarn front position 2L of moment B3, therefore by using arrival time IS among weft yarn, it can not be by brake 13
Hold traveling caused by the type of weft yarn Y, the difference of the injection pressure of Weft insertion nozzle 2 and pilot jet 7 in the ground that influences of braking
The difference of state.
Therefore, by holding in woven pieces the of arrival time IS and air ring sensor 10 among the weft yarn of weft sensor 18
Difference Δ at the time of weft yarn unwinding moment B3 three times, can monitor the injection of the type, Weft insertion nozzle 2 and pilot jet 7 of weft yarn Y
The difference of weft yarn travel condition caused by the difference of pressure.Hold arrival time IS and the unwinding moment B3 of weft yarn among weft yarn when
Carve poor Δ, monitoring weft yarn travel condition can accurately know the latitude of the unwinding performance of the weft yarn of Weft insertion nozzle 2 and pilot jet 7
The equilibrium 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.
It advances and lies prostrate as the weft yarn using difference Δ at the time of moment B3 unwinding with weft yarn based on arrival time IS among weft yarn
One example of the control of the Weft inserting device 1 of the monitoring of state, the in Fig. 4 pressure to the compressed air sprayed from pilot jet 7
Setting method illustrates.AD1 is the curve of difference Δ at the time of indicating the moment B3 unwinding with weft yarn of arrival time IS among weft yarn.
Curve AD1 is sprayed in the state that wefting insertion finish time IE is remained certain by the injection pressure for adjusting Weft insertion nozzle 2, by auxiliary
It is when the injection pressure of mouth 7 carries out height various changes, poor at the time of arrival time IS and weft yarn unwinding moment B3 among weft yarn
Δ it is curved and obtain.
On the other hand, when curve AD2 is by according to the injection pressure of various change pilot jets 7, sensed by end
The unwinding signal of weft yarn of wefting insertion finish time IE that device 14 detects and air ring sensor 10 is calculated with the unwinding end of weft yarn
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 unwinding moment of the weft yarn Y measured to weft yarn engages the weft yarn unwinding time of pin 9 and to the third time weft yarn of air ring sensor 10
It is obtained plus the weft yarn unwinding time at the time of when unwinding signal.
Curve AD2 started according to the action of brake 13 after weft examining signal and the unwinding signal of weft yarn acquire,
So even the injection pressure of change pilot jet 7, the variable quantity of time difference are also smaller.On the other hand, curve AD1 and curve
AD2 is compared, and the variable quantity of time difference is larger.This is because asking the inspection of the weft yarn arrival time and 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
Go out the difference of travel condition caused by the type of weft yarn Y, the difference of the injection pressure of Weft insertion nozzle 2 and pilot jet 7.
Therefore, by curve AD1, Weft insertion nozzle corresponding with the injection pressure of pilot jet 72 can clearly be read
The equilibrium state of the unwinding performance of weft yarn and the weft yarn transportation performance of pilot jet 7.For example, in the case of figure 4, it can be by curve
In AD1 time difference be widely varied near position optimum pressure SP of the pressure as pilot jet 7.
In addition, additional when weft yarn Y advances under each injection pressure, weft yarn Y extend and become without loose state when
Curved curve EA is carved, thus, it is possible to judge whether the extension state of weft yarn Y is appropriate and can hold optimum pressure SP.
Second embodiment
Fig. 5 indicates that second embodiment carries out structure same as the first embodiment with identical reference numeral
Illustrate, omits detailed description.Second embodiment is configured to that woven pieces is arranged at two of the weft yarn travel path 6 in woven pieces TL
Interior weft sensor 18,50.Weft sensor 18 is structure same as the first embodiment 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 ideal weft yarn front position of the weft yarn Y of the unwinding moment B2 of weft yarn (with reference to Fig. 2) of unwinding signal.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 passes in woven pieces
Sensor 50 is electrically connected by wiring 51 with control device 16.
Weft sensor 50 detects before the braking start time BT (with reference to Fig. 2) that brake 13 starts action in woven pieces
Weft yarn Y, therefore can not be influenced by brake 13, and the type of weft yarn Y, wefting insertion spray are monitored in the same manner as first embodiment
The difference of the travel condition of weft yarn Y 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 can realize the monitoring of more accurate weft yarn travel condition, helps
In the unwinding performance of weft yarn Y and the control of transportation performance.
The present application is not limited to the structure of the respective embodiments described above, the energy in the range of purport of the present application
It enough makes various changes, can implement as follows.
(1) in figure 6, (a) of Fig. 6 indicates that weft sensor 18 is in woven pieces TL in tip sensor 14 and woven pieces
Allocation position, (b) of Fig. 6 indicate the various moment in woven pieces TL.In woven pieces weft sensor 18 can be only fitted to from air ring
The position of the opposite ideal weft yarn front position 2L offsets of the unwinding moment B3 of third time weft yarn of sensor 10.In the implementation of Fig. 6
In mode, the position X for falling back α from ideal weft yarn front position 2L on wefting insertion direction is provided with weft sensor 18 in woven pieces.
Become 2L- α, the position of ideal weft yarn front position and weft sensor 18 in setting woven pieces from the unwinding weft yarn of storage reels 8 length
Set 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
Difference Δ holds the traveling shape of weft yarn Y at the time of arrival time IS moment BX unwinding with weft yarn among the weft yarn of yarn sensor 18
State.In this case, the installation position of weft sensor 18 is not limited to and the weft yarn from air ring sensor 10 in woven pieces
Corresponding ideal weft yarn front position L, 2L of unwinding signal, the degree of freedom of the installation position of weft sensor 18 increases in 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 in ideal weft yarn front end
Position L, the differential seat angle of observation weft yarn centre arrival time IS and the unwinding moment B2 of second of weft yarn.
Claims (3)
1. the weft yarn travel condition in a kind of air-jet loom monitors that method, the air-jet loom have：Weft yarn surveys long storage device,
Its storage reels with 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 brakes weft yarn before wefting insertion terminates；And latitude in woven pieces
Yarn sensor, the weft yarn travel path being set in woven pieces,
Weft yarn travel condition in the air-jet loom monitors that method is characterized in that,
Weft sensor in the woven pieces is arranged in weft yarn front end position more corresponding than braking start time with the brake
Nearly wefting insertion direction upstream side is rested against,
Difference monitors the travel condition of weft yarn at the time of moment unwinding with weft yarn using arrival time among weft yarn, in the weft yarn
Intermediate arrival time, based on the weft examining signal of weft sensor in the woven pieces, at the weft yarn unwinding moment, from described
Storage reels to weft yarn knit in end to the woven pieces from what the unwinding signal of weft yarn according to the air ring sensor was held
The length of the installation position of weft sensor it is unwinding.
2. the weft yarn travel condition in air-jet loom according to claim 1 monitors method, which is characterized in that
The air ring sensing in the braking start time closest to the brake is arranged in weft sensor in the woven pieces
Ideal weft yarn front position when the unwinding signal of n-th weft yarn of device generates.
3. the weft yarn travel condition in air-jet loom according to claim 1 or 2 monitors method, which is characterized in that
In the weft yarn front position for braking start time than the brake close to the weft yarn traveling road of wefting insertion direction upstream side
Weft sensor in multiple woven pieces is arranged in diameter.
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 CN107034575A (en) | 2017-08-11 |
| CN107034575B true 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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| 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 |
| JP6994377B2 (en) * | 2017-12-13 | 2022-01-14 | 株式会社豊田自動織機 | Weaving diagnostic method for air jet looms |
| 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 |
| JP7368075B2 (en) * | 2018-05-08 | 2023-10-24 | 株式会社豊田自動織機 | Weft insertion control method in air jet loom |
| CN109629088B (en) * | 2019-02-27 | 2023-12-19 | 山东日发纺织机械有限公司 | Weft insertion device of air jet loom and automatic adjustment method thereof |
| 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 |
| JP2022062820A (en) * | 2020-10-09 | 2022-04-21 | 株式会社豊田自動織機 | Air-jet loom weft insertion device |
| 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 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0819604B2 (en) * | 1986-01-13 | 1996-02-28 | 津田駒工業株式会社 | Weft insertion self-diagnosis device for fluid jet loom |
| JPH04240249A (en) * | 1991-01-22 | 1992-08-27 | Nissan Motor Co Ltd | Weft-insertion controlling apparatus for air-jet loom |
| WO1993010296A1 (en) * | 1991-11-22 | 1993-05-27 | Nissan Motor Co., Ltd. | Control device in loom |
| JP3044897B2 (en) * | 1992-01-28 | 2000-05-22 | 株式会社豊田自動織機製作所 | Weft insertion method in jet loom |
| JPH0693534A (en) * | 1992-09-10 | 1994-04-05 | Toyota Autom Loom Works Ltd | Apparatus for controlling weft-insertion in jet loom |
| JP3121169B2 (en) * | 1993-03-25 | 2000-12-25 | 津田駒工業株式会社 | Weft braking device in jet loom |
| JP2605838Y2 (en) * | 1993-11-10 | 2000-08-21 | 株式会社豊田自動織機製作所 | Weaving weft insertion device |
| JP3669605B2 (en) * | 1997-05-09 | 2005-07-13 | 津田駒工業株式会社 | Sub nozzle injection control method |
| JP2001181945A (en) * | 1999-12-27 | 2001-07-03 | Tsudakoma Corp | Weft yarn sensor abnormality-detecting device |
| EP1951941B1 (en) * | 2005-11-21 | 2013-10-16 | Picanol | Method for introducing a weft thread in an air weaving machine and air weaving machine |
| EP1953282B1 (en) * | 2007-02-02 | 2010-12-22 | ITEMA (Switzerland) Ltd. | Method and device for inserting weft thread into a loom |
| JP5550822B2 (en) * | 2008-09-09 | 2014-07-16 | 津田駒工業株式会社 | How to display the weft insertion status of the loom |
| BE1018762A3 (en) * | 2009-05-27 | 2011-08-02 | Picanol Nv | METHOD FOR INSERTING AN IMPRESSION THREAD AND AERIAL WEAVING MACHINE. |
| JP5423597B2 (en) * | 2010-06-28 | 2014-02-19 | 株式会社豊田自動織機 | Weft insertion state discrimination device and weft insertion control device in jet loom |
| JP2012224959A (en) * | 2011-04-20 | 2012-11-15 | Tsudakoma Corp | Method and apparatus for adjusting injection angle position of sub-nozzle in air injection type loom |
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| Publication number | Publication date |
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| JP2017057516A (en) | 2017-03-23 |
| EP3144422B1 (en) | 2018-10-17 |
| JP6135731B2 (en) | 2017-05-31 |
| CN107034575A (en) | 2017-08-11 |
| EP3144422A3 (en) | 2017-04-26 |
| EP3144422A2 (en) | 2017-03-22 |
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