CN1605669B - Filling insertion controlling device of jet loom - Google Patents
Filling insertion controlling device of jet loom Download PDFInfo
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- CN1605669B CN1605669B CN200410083565.7A CN200410083565A CN1605669B CN 1605669 B CN1605669 B CN 1605669B CN 200410083565 A CN200410083565 A CN 200410083565A CN 1605669 B CN1605669 B CN 1605669B
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- time
- advent
- weft
- weft yarn
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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
- D03D47/3053—Arrangements or lay out of air supply systems
-
- 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 invention properly converge weft-reaching times to a target weft-reaching time. A weft-detecting tool 19 is used for detecting the reaching time of the weft Y. A controlling computer C controls the pressures in pressurized air-feeding tanks 25 and 26 based on the difference between the average value of some of the detected weft reaching times, and the target reaching time. The pressure control is carried out by controlling pressure-controlling states by pressure-controlling valves 27 and 28. The controlling computer C controls opening and closing timings of solenoid valves 20-24 at the next insertion time based on the difference between the detected single weft reaching time and the target reaching time.
Description
Background of the present invention
Technical field
The present invention relates to the Weft insertion controller on the jet loom, it is equipped with Weft insertion nozzle, so that insert weft yarn by the aerojet action, and an on/off valve, can change the timing of carrying pressure-air to described Weft insertion nozzle.
Background technology
At wefting insertion is that from guaranteeing the angle of necessary fabric quality, suitably controlling weft yarn is important in the time of advent of wefting insertion end on the jet loom of realizing by the air-spray that comes autonomous Weft insertion nozzle and auxiliary weft insertion nozzle.Thus, on the Weft insertion controller that in JP5-59638A, discloses, detect wefting insertion angle midway, and, controllably change the pressure waveform of master's Weft insertion nozzle when spraying end according to testing result.In addition, in the wefting insertion control method in being disclosed in JP9-59638A, pressure-air sprays by Weft insertion nozzle, by means of the interaction of pressure-air approach and low-pressure air approach.In addition, the error according to the detected weft yarn time of advent and standard weft yarn time of advent has changed pressure-air injecting time and low pressure wefting insertion time started, so that eliminate the time that wefting insertion next time begins.
On the device in being disclosed in JP5-59638A, attempt the change of controlled pressure waveform during wefting insertion, detect wefting insertion angle midway simultaneously.But, quite short wefting insertion in the time according to described testing result, the controlled change of realizing the detection of wefting insertion angle midway and pressure waveform is unusual difficulty.In other words, the controlled change of pressure waveform can not in time be finished.
In the control method in being disclosed in JP9-228192A, pressure-air injecting time and low pressure wefting insertion time started change, so that eliminate the above-mentioned error of wefting insertion time, at described wefting insertion after the time, detect weft yarn time of advent, thus the situation that can avoid described control in time not carry out.
But, for the pressure-air injecting time and next time low pressure wefting insertion time started of beginning of wefting insertion only be the method for controlling the time of advent according to detected single weft yarn, make detected weft yarn time of advent correctly converge the time of advent and be suitable difficulty with the standard weft yarn.
Summary of the invention
The objective of the invention is to make that the time of advent of weft yarn and target weft yarn just in time converge the time of advent.
In order to realize above-mentioned purpose of the present invention, the present invention relates to be used in the Weft insertion controller on the jet loom, it is equipped with Weft insertion nozzle, so that by the aerojet action, insert weft yarn; And an on/off valve, can change the timing of carrying pressure-air to described Weft insertion nozzle.Described Weft insertion controller comprises: the weft yarn detector time of advent is used to detect weft yarn time of advent; The nozzle parameter control device is used for according to by poor between the time of advent of the mean value of the detected a plurality of weft yarn of described weft yarn detector time of advent time of advent and predeterminated target, the nozzle parameter of the air that control sprays from Weft insertion nozzle; And the injection timing control device, being used for according to by poor between the time of advent of the detected single weft yarn time of advent of the described weft yarn detector time of advent and predeterminated target, the ON/OFF of control on/off valve is regularly in wefting insertion next time.
Here, the ON/OFF of described on/off valve is regularly only represented opening timing, or only represents timeing closing, or opening and closing regularly the two.
Description of drawings
In the accompanying drawings:
Fig. 1 is the schematic diagram that schematically shows the structure of first kind of embodiment of the present invention;
Fig. 2 A, 2B and 2C are used to illustrate the time-controlled time diagram of close/open valve; With
Fig. 3 is the flow chart that expression is used to implement the wefting insertion control program that expulsion pressure control and injection timing control.
The specific embodiment
Below in conjunction with Fig. 1-3 explanation embodiment of the present invention.
The convoluted weft yarn mensuration/storage device of Reference numeral 11 expressions.Weft yarn to the reel for yarn of weft yarn mensuration/storage device around the coiling on the face 111 and weft yarn from described reel for yarn pulling out and unwinding on face 111, be insertion/withdraw from action control by the lock pin 121 of electromagnetic valve 12.Energising/the outage of electromagnetic valve 12 is to implement by the instruction control of control computer C, and it is according to energising/outage of controlling electromagnetic valve 12 from the weft yarn unwinding detection information of weft yarn unwinding detector 13.Weft yarn unwinding detector 13 detects and is wound on the yarn of reel for yarn on face 111.
Weft yarn Y by the jet that comes autonomous Weft insertion nozzle 14 is pulled out and sprayed around face 111 from reel for yarn carries out post-injection by a plurality of auxiliary weft insertion nozzles 15,16,17 and 18.After wefting insertion is realized with satisfactory way, in predetermined machine rotation angle range, detect weft yarn Y by weft detector 19.The weft yarn that whether exists from the relevant weft yarn of weft detector 19 exists detection signal to be transfused to control computer C, and the weft yarn whether it exists according to relevant weft yarn exists detection signal to select to continue or stop the work of loom.
In injection, be to control by the opening and closing of electromagnetism on/off valve 20 as the pressure-air that is used for wefting insertion on the main Weft insertion nozzle 14 of Weft insertion nozzle.In injection, be to control by the opening and closing of electromagnetism on/off valve 21,22,23 and 24 as the pressure-air that is used for wefting insertion on the auxiliary weft insertion nozzle sets 15-18 of Weft insertion nozzle.Electromagnetism on/off valve 20 is connected with pressure-air cassette for supplying 25, and electromagnetism on/off valve 21,22,23 is connected with pressure-air cassette for supplying 26 with 24.Electromagnetism on/off valve 20-24 can change on/off valve from the timing of pressure-air to described Weft insertion nozzle that carry.
The ON/OFF control of electromagnetism on/off valve 20-24 is to realize by the instruction from control computer C.Control computer C is according to the opening and closing of the loom rotational angle detection signal control electromagnetism on/off valve 20-24 that obtains by the rotary encoder 30 that is used for the detection of the loom anglec of rotation.
Pressure-air cassette for supplying 25 is connected with principal pressure case 29 with 28 by electric press control valve 27 with 26.Pressure-control valve 27 plays a part to regulate the pressure of pressure-air cassette for supplying 25, and pressure-control valve 28 plays a part to regulate the pressure of pressure-air cassette for supplying 26.
Fig. 2 A, 2B and 2C are the ON/OFF timing figure of expression electromagnetism on/off valve 20-24, the injection timing of promptly main Weft insertion nozzle 14 and auxiliary weft insertion nozzle sets 15-18.Horizontal axis is represented time T, and vertical axis is represented by the in-position (insertion position) of the weft yarn front end of wefting insertion.On horizontal axis, the angular range of the part that loom once rotates (360 crank angle degree scope) is replaced by time showing.
Lines M represents the injection timing of main Weft insertion nozzle 14, and lines E1, E2, E3 and E4 represent the injection timing of auxiliary weft insertion nozzle sets 15-18.The yarn that time representation is reeled discharges time of beginning from reel for yarn around face 111 under the effect of lock pin 121, i.e. electromagnetic valve 12 time of beginning to switch on.Time M1 represents the opening timing of the electromagnetism on/off valve 21 of the electromagnetism on/off valve 20 of main Weft insertion nozzle 14 and auxiliary weft insertion nozzle sets 15.Time E2s, E3s and E4s represent the opening timing of the electromagnetism on/off valve 22-24 of auxiliary weft insertion nozzle sets 16-18.The opening timing E2s of electromagnetism on/off valve 22-24, E3s and E4s fix.Time M2 represents the timeing closing of the electromagnetism on/off valve 20 of main Weft insertion nozzle 14, and time E1e, E2e, E3e and E4e represent the timeing closing of the electromagnetism on/off valve 21-24 of auxiliary weft insertion nozzle sets 15-18.Below, E1e, E2e, E3e and E4e can also be expressed as Eje (j=1,2,3,4).
With the timeing closing E1e of injection timing bar M and E1-E4, E2e, E3e and E4e are set at the predetermined reference timeing closing.Lines D1 among Fig. 2 A and the lines D2 among Fig. 2 B represent the example of the running status of weft yarn Y.
Pressure-air conveying box 25 is connected with 32 with pressure detector 31 with 26, and will control computer C by the pressure detecting information input that pressure detector 31 and 32 obtains.Control computer C is according to the pressure information FEEDBACK CONTROL pressure control valve 27 and 28 from pressure detector 31 and 32.
Control computer C is according to from the detection signal of weft detector 19 with from the loom rotational angle detection signal of rotary encoder 30, detects weft yarn time of advent.Weft detector 19, rotary encoder 30 and control computer C have constituted the weft yarn detector time of advent, are used to detect the time that weft yarn arrives wefting insertion end (being the detection position of weft detector 19).Control computer C implements drive controlling to pressure- control valve 27 and 28 according to detected weft yarn the time of advent, so that the pressure of control pressure-air conveying box 25 and 26.In other words, control computer C implements expulsion pressure control to main Weft insertion nozzle 14 and auxiliary weft insertion nozzle sets 15-18.
Fig. 3 is the flow chart that expression is used to implement the wefting insertion control program that expulsion pressure control and injection timing control.To illustrate below at the wefting insertion shown in the flow chart of Fig. 3 and control.
Whether control computer C has reached predetermined quantity N to the quantity of sampling quantity of the single weft yarn TW time of advent that obtains by weft detector 19 (for example, N=50) judges (step S1).When the quantity of sampling quantity of the single weft yarn TW time of advent has reached predetermined quantity N (answer among the step S1 is for being at this moment), control computer C calculates mean value＜TW of the weft yarn TW time of advent of predetermined quantity〉(step S2).In other words, each N wefting insertion is implemented mean value＜TW〉calculating.Control computer C is to the target TW0 time of advent and detected single weft yarn mean value＜TW time of advent of weft yarn Y〉between the absolute value (TW0-＜TW 〉) of difference and the degree of correlation between the allowable error α (＞0) judge (step S3).
When the absolute value of described difference (TW0-＜TW 〉) is no more than described allowable error α (, answer among the step S3 is for being at this moment), control computer C maintains (step S4) on the existing level with the expulsion pressure on main Weft insertion nozzle 14 and the auxiliary weft insertion nozzle sets 15-18.When the absolute value of described difference (TW0-＜TW 〉) surpasses described allowable error α (, answer among the step S3 is for denying at this moment), control computer C handles the expulsion pressure that changes on main Weft insertion nozzle 14 and the auxiliary weft insertion nozzle sets 15-18, in case the absolute value of described difference (TW0-＜TW 〉) converge (step S5) with described allowable error α.When (TW0-＜TW 〉)＞α, promptly when time of advent of weft yarn too late the time, control computer C changes the pressure adjusting condition of pressure- control valve 27 and 28, so that improve the expulsion pressure on main Weft insertion nozzle 14 and the auxiliary weft insertion nozzle sets 15-18.When (TW0-＜TW 〉)＜α, promptly when time of advent of weft yarn too early the time, control computer C changes the pressure adjusting condition of pressure- control valve 27 and 28, so that reduce the expulsion pressure on main Weft insertion nozzle 14 and the auxiliary weft insertion nozzle sets 15-18.
When the answer among the step S1 for not the time (, the quantity TM of single weft yarn time of advent does not reach predetermined quantity N), perhaps after step S4 and S5, (amplitude of＞difference between α) judges (step S6) to control computer C to difference (TW-TW0) and predetermined threshold β.When this wefting insertion time [with P (1) expression] when detected poor (TW-TW0) is no more than predetermined threshold β (when the answer among the step S6 when being), control computer C handles, so that postpone next time the timeing closing of the electromagnetism on/off valve 22-24 of wefting insertion [with P (2) expression] (S7).
The value of β can be controlled the input unit 33 (as shown in Figure 1) that computer C connects by threshold and arbitrarily import and set.
Fig. 2 B is the time diagram of the injection timing on main Weft insertion nozzle 14 of expression and the auxiliary weft insertion nozzle sets 15-18.Injection timing among Fig. 2 B is identical with injection timing among Fig. 2 A.Lines D2 represents a kind of example of weft yarn Y running status, and wherein, described poor (TW-TW0) is no more than predetermined threshold β.
In the delay control of step S7, for example the timeing closing on the electromagnetism on/off valve 20 postpones by described poor (TW-TW0), and the timeing closing on the electromagnetism on/off valve 21-23 postpones by doubling described poor (TW-TW0).Fig. 2 C be illustrated in the injecting time among Fig. 2 B controlled after, the time diagram of the injection timing on main Weft insertion nozzle 14 and the auxiliary weft insertion nozzle sets 15-18.What Fig. 2 C represented is such situation, and wherein, the timeing closing on the electromagnetism on/off valve 20 postpones by described poor (TW-TW0), and the timeing closing on the electromagnetism on/off valve 21-23 postpones by doubling described poor (TW-TW0).
When the answer among the step S6 for not the time, that is, at wefting insertion time P (1) detected poor (TW-TW0) during less than predetermined threshold β, whether control computer C is in this wefting insertion P (1) postpones the control continuous mode and judges (step S8).
Equally, when described poor (TW-TW0) do not reach the threshold value beta of the in check P of wefting insertion next time (2) in step S7, control computer C continued to postpone to be controlled at the wefting insertion of the predetermined quantity of the wefting insertion that the described wefting insertion of [representing with P (3)] begins after the wefting insertion next time.
To be the continuation that the example explanation postpones control with the described situation of Fig. 2 C.If the retardation of the timeing closing of electromagnetism on/off valve 20 [that is, (TW-TW0)] is γ, and the retardation of the timeing closing of electromagnetism on/off valve 21-23 [that is, 2 * (TW-TW0)] is δ.At wefting insertion P (3) next time afterwards, control computer C changes over [M2+ γ (1-1/n)] with the timeing closing of electromagnetism on/off valve 20 when the wefting insertion, and afterwards at wefting insertion P (3) next time, the timeing closing of electromagnetism on/off valve 21-23 when the wefting insertion changed over [Eje+ δ (1-1/n)], wherein, n is not less than 2 integer.
For example, when n was 2, in wefting insertion P (3) wefting insertion afterwards next time, the timeing closing of electromagnetism on/off valve 20 when wefting insertion was [M2+ γ/2], and the timeing closing of electromagnetism on/off valve 21-23 when wefting insertion is [Eje+ δ/2].In other words, in this case, the wefting insertion after wefting insertion next time is to postpone the control continuous mode.Then, in the wefting insertion that carries out according to the described P of wefting insertion next time (3) wefting insertion afterwards [with P (4) expression], the timeing closing of electromagnetism on/off valve 20 is [M2+ γ/3], and the timeing closing of electromagnetism on/off valve 21-23 is Eje.In other words, in this case, not to postpone the control continuous mode at the wefting insertion P (4) that carries out according to the described P of wefting insertion next time (3) wefting insertion afterwards.
When n was 3, in wefting insertion P (3) wefting insertion afterwards next time, the timeing closing of electromagnetism on/off valve 20 when wefting insertion was [M2+ γ * 2/3], and the timeing closing of electromagnetism on/off valve 21-23 when wefting insertion is [Eje+ δ * 2/3].In other words, in this case, the wefting insertion after next time inserting is to postpone the control continuous mode.Then, in the wefting insertion that carries out according to the described P of wefting insertion next time (3) wefting insertion afterwards [with P (4) expression], the timeing closing of electromagnetism on/off valve 20 is [M2+ γ/3], and the timeing closing of electromagnetism on/off valve 21-23 is [Eje+ δ/3].In other words, in this case, be to postpone the control continuous mode at the wefting insertion P (4) that carries out according to the described P of wefting insertion next time (3) wefting insertion afterwards.
In three wefting insertion of the wefting insertion [with P (5) expression] afterwards of wefting insertion P (2) next time, the timeing closing of electromagnetism on/off valve 20 is M2, and the timeing closing of electromagnetism on/off valve 21-23 when wefting insertion is Eje.In other words, in this case, three wefting insertion of wefting insertion P (2) wefting insertion P (5) afterwards are not to postpone the control continuous mode next time.
When the answer of step S8 when being (in other words, postponing under the control continuous mode), control computer C changes over γ [1-(k+1)/n] (step S9) with γ (1-k/n), and wherein, k is the integer 0＜k＜n in the span.When n was 2, k was 1, and when n was 3, k was 1,2.In other words, step S9 represents to postpone to control the termination that continues or postpone the control continuation.
The value of n can be by input unit 33 input and setting arbitrarily.
The control computer C that implements above-mentioned control is the injection conditions control device, by it according to a plurality of detected single weft yarn mean value＜TW of the time of advent and the predeterminated target TW0 time of advent between poor, the injection conditions of the air that control sprays from described Weft insertion nozzle (in the present embodiment, being the air pressure in pressure-air cassette for supplying 25 and 26).In addition, control computer C is the injection timing control device, by its poor according between the detected single weft yarn TW time of advent and the predeterminated target TW0 time of advent, control the ON/OFF of described on/off valve in wefting insertion P (2) next time regularly (in the present embodiment, being timeing closing).Its pressure adjusting condition is the pressure- control valve 27 and 28 that changes by the control computer, is the device that is used for regulating the injection conditions of the air that sprays from described Weft insertion nozzle.
The present embodiment has the following advantages:
(1-1) by control computer C according to a plurality of detected single weft yarn mean value＜TW of the time of advent and the predeterminated target TW0 time of advent between poor, the pressure in the control pressure-air cassette for supplying 25 and 26.In other words, by control computer C according to a plurality of detected single weft yarn mean value＜TW of the time of advent and the predeterminated target TW0 time of advent between poor, control the expulsion pressure (injection conditions of injection air) on main Weft insertion nozzle 14 and the auxiliary weft insertion nozzle sets 15-18.According to a plurality of detected single weft yarn mean value＜TW of the time of advent〉and the predeterminated target TW0 time of advent between the expulsion pressure control carried out of difference (below be referred to as mean value control) be fit to solve the weft yarn slow fluctuation of the time of advent.
In addition, control computer C poor according between the detected single weft yarn of the timing TW time of advent of wefting insertion P (1) and the target TW0 time of advent, be controlled at the ON/OFF timing (in the present embodiment, only being timeing closing) of the middle electromagnetism on/off valve 22-24 of wefting insertion P (2) next time.The ON/OFF timing controlled of the electromagnetism on/off valve 22-24 that carries out according to the difference between the detected single weft yarn TW time of advent and the target TW0 time of advent (below be referred to as real-time control) is fit to solve because the big unexpected fluctuation of weft yarn thickness, fine hair etc. cause inhomogeneous weft yarn time of advent that causes.
For example, in conventional wefting insertion control, only implemented mean value control, when weft yarn fluctuates widely suddenly the time of advent, can not be when wefting insertion begins next time rapid and suitable control expulsion pressure (in other words, Pressure control postpones), therefore can not weaken the weft yarn big unexpected fluctuation of the time of advent rapidly.
C implements wefting insertion control by the control computer, and it is mean value control and the combination of control in real time.Therefore, when there is unexpected big delay the time of advent in the weft yarn of wefting insertion P (1), the aerojet time in wefting insertion P (2) next time on weft yarn mensuration/storage device 11 and auxiliary weft insertion nozzle sets 15-18 is extended, so that can be suppressed at the big delay of the time of advent of weft yarn among the wefting insertion P (2) next time.Therefore, adopt mean value＜TW of a plurality of weft yarn TW time of advent〉injection conditions control (mean value control) and adopt the combination of the ON/OFF timing controlled (real-time control) of the single weft yarn TW time of advent, can effectively realize converging of the described weft yarn time of advent and the target weft yarn time of advent.
(1-2) when big weft yarn occurring and postpone the time of advent, it is lax weft yarn to occur.When the single weft yarn is postponed the time of advent greatly [in other words, single weft yarn time of advent is from (TW0+ β)], in wefting insertion P (2) next time, the timeing closing of electromagnetism on/off valve 22-24 postpones, so that suppress the weft yarn delay of the time of advent, thereby avoid the lax appearance of weft yarn.
(1-3) in wefting insertion P (1) wefting insertion P (2) afterwards, by the timeing closing of control computer C control lag electromagnetism on/off valve 22-24.When carrying out described delay control, take control measure, so that reduce next time wefting insertion P (3) [in other words, wefting insertion after described insertion next time, at this moment, in wefting insertion P (1), weft yarn is postponed the time of advent greatly] after the beginning from the retardation of the timeing closing of the electromagnetism on/off valve 22-24 of wefting insertion.
If the timeing closing of electromagnetism on/off valve 22-24 is postponed [in other words greatly in wefting insertion, weft yarn is postponed the time of advent greatly in wefting insertion P (1) wefting insertion P (2) afterwards], the delay of detected single weft yarn time of advent is less than the scheduled time (being threshold value beta).In this case, when the timeing closing retardation of electromagnetism on/off valve 22-24 is lowered to 0, there is worry among the wefting insertion P (3) after described wefting insertion next time, makes the relative target TW0 time of advent postpone the weft yarn fluctuation time of advent.Minimizing from the control of the timeing closing retardation of the electromagnetism on/off valve 22-24 of described wefting insertion, can effectively be avoided the weft yarn fluctuation time of advent, so that the target TW0 time of advent postpones relatively after described wefting insertion next time.
In the present invention, following embodiment also is feasible:
(1) although in the above-described embodiment, described expulsion pressure (being the pressure in pressure-air cassette for supplying 25 and 26) is used as the nozzle parameter of the air that sprays from Weft insertion nozzle, described air flow flow can also be made the aerojet parameter.In this case, can partly provide the flow of power control valve at the circulation passage between electromagnetism on/off valve 20 and the pressure-air cassette for supplying 25, and can between electromagnetism on/off valve 21-24 and pressure-air cassette for supplying 26, provide the flow of power control valve.In addition, according to repeated detection to mean value and the difference of predeterminated target between the time of advent of weft yarn time of advent control so that change the Flow-rate adjustment parameter of described flow control valve, thereby eliminate this difference.
(2) close/open valve of described on/off valve regularly can also be used as the aerojet parameter.In this case, according to repeated detection to mean value and the difference of predeterminated target between the time of advent of weft yarn time of advent control so that the close/open valve that changes described on/off valve is regularly, thereby eliminate this difference.It also helps to solve the weft yarn slow fluctuation of the time of advent.
(3) described weft yarn unwinding detector 13 can also be arrived detector as weft yarn.
(4) in control in real time, when the close/open valve of described on/off valve regularly is controlled, can also control opening time and shut-in time simultaneously.
(5) in control in real time, when the close/open valve of described on/off valve regularly is controlled, can also only control the opening time.
(6) in control in real time, can also only control the close/open valve timing of the electromagnetism on/off valve 21-24 of auxiliary weft insertion nozzle sets 15-18.
(7) in control in real time, can also only control auxiliary weft insertion nozzle sets 15-18 electromagnetism on/off valve 21-24 a part close/open valve regularly.
(8) in control in real time, can also only control the close/open valve timing of the electromagnetism on/off valve 20 of main Weft insertion nozzle 14.
(9) in mean value control, can only control the expulsion pressure (being the pressure in the pressure-air cassette for supplying 26) on the auxiliary weft insertion nozzle sets 15-18.
(10) in control in real time, step S8 and the S9 in the flow chart of execution graph 3 not.In other words, when (TW-TW0) 〉=β, can only in wefting insertion subsequently, postpone described timeing closing.
For example, when 2 β 〉=(TW-TW0) 〉=β, the n among the step S9 of Fig. 3 can be set at 2, and when the β of (TW-TW0) 〉=2, the n among the step S9 of Fig. 3 can be set at 3, thereby changes the value of n according to the size of described poor (TW-TW0).
(11) in mean value control, except the most ancient detected single weft yarn N sub-sampling of the time of advent, can also use movement average, adopt new detected single weft yarn time of advent.
Claims (4)
1. Weft insertion controller that is used on the jet loom, it be equipped with Weft insertion nozzle (14,15-18), so that insert weft yarn (Y), and on/off valve (20-24), can change the timing of carrying pressure-air to described Weft insertion nozzle by the aerojet action,
It is characterized in that described Weft insertion controller comprises:
The weft yarn detector time of advent (19,30, C), be used to detect the single weft yarn time of advent (TW);
The nozzle parameter control device, be used for basis by the described weft yarn detector time of advent (19,30, C) poor between mean value of the detected a plurality of single weft yarns time of advent (TW) (＜TW 〉) and the predeterminated target time of advent (TW0), control from Weft insertion nozzle (14,15-18) in the nozzle parameter of air of ejection; And
The injection timing control device, be used for according to by the described weft yarn detector time of advent (19,30, C) poor between the detected single weft yarn time of advent (TW) and the predeterminated target time of advent (TW0), the ON/OFF of controlling on/off valve (20-24) in wefting insertion next time regularly
Wherein, when the relative predeterminated target time of advent (TW0) delay scheduled time (β) of the detected single weft yarn time of advent (TW) or longer time, the injection timing control device is guiding one to postpone control in the wefting insertion next time, with the timeing closing (E1e-E4e) of delay on/off valve (22-24), and
Wherein, after postponing the control beginning, when the relative predeterminated target time of advent (TW0) delay scheduled time (β) of the detected single weft yarn time of advent (TW) or longer time, the time that the weft yarn of injection timing control device behind the wefting insertion next time inserts, continue to postpone the timeing closing of control before a timeing closing turns back to delay control beginning, reduce the retardation of the timeing closing (E1e-E4e) of on/off valve (20-24) simultaneously.
2. the Weft insertion controller that is used on the jet loom as claimed in claim 1, wherein, nozzle parameter control device control following parameters is arbitrary: from Weft insertion nozzle (14, the air pressure of ejection 15-18), from Weft insertion nozzle (14, the ON/OFF of the air mass flow of ejection and described on/off valve regularly 15-18).
3. as the Weft insertion controller on the jet loom of being used in of one of claim 1-2, also comprise be used for regulating from Weft insertion nozzle (14,15-18) in the aerojet adjusting device (27,28) of nozzle parameter of air of ejection,
Wherein, control the adjusting parameter of aerojet adjusting device (27,28) by described nozzle parameter control device.
4. the Weft insertion controller that is used on the jet loom as claimed in claim 1, wherein, the described weft yarn detector time of advent (19,30, C) comprise the weft detector (19) that is used to detect on the precalculated position whether weft yarn (Y) be positioned at described wefting insertion end.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP349475/03 | 2003-10-08 | ||
| JP2003349475A JP4399228B2 (en) | 2003-10-08 | 2003-10-08 | Weft insertion control device in jet loom |
| JP349475/2003 | 2003-10-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1605669A CN1605669A (en) | 2005-04-13 |
| CN1605669B true CN1605669B (en) | 2010-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200410083565.7A Expired - Fee Related CN1605669B (en) | 2003-10-08 | 2004-10-08 | Filling insertion controlling device of jet loom |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4399228B2 (en) |
| CN (1) | CN1605669B (en) |
| BE (1) | BE1016322A3 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5216990B2 (en) | 2005-11-21 | 2013-06-19 | ピカノール | Method of introducing weft yarn in an air jet loom and an air jet loom |
| BE1016857A3 (en) * | 2005-11-21 | 2007-08-07 | Picanol Nv | Introducing method for weft thread in an air weaving machine by determining an instant when the supply of compressed air to one set of auxiliary blowers is interrupted to control measurements on the transported weft thread |
| JP5098299B2 (en) * | 2006-11-03 | 2012-12-12 | 株式会社豊田自動織機 | Abnormality detection method for flow control valve of air jet loom |
| EP2319968B1 (en) * | 2009-11-09 | 2013-01-02 | ITEMA S.p.A. | Air control system for inserting a weft yarn in a pneumatic weaving loom |
| CN102268772B (en) * | 2011-07-13 | 2013-08-21 | 中达电通股份有限公司 | Automatic air-jet loom weft insertion control system and method |
| JP5958296B2 (en) * | 2012-11-16 | 2016-07-27 | 株式会社豊田自動織機 | Compressed air flow rate display device for air jet loom |
| JP6190250B2 (en) * | 2013-11-14 | 2017-08-30 | 株式会社豊田自動織機 | Weft detection device for air jet loom |
| CN104894731A (en) * | 2015-03-12 | 2015-09-09 | 天津工业大学 | Air jet loom weft insertion air flow pressure flow measurement system |
| CN106012243B (en) * | 2015-03-27 | 2017-08-25 | 株式会社丰田自动织机 | Weft examining device for air-jet loom |
| JP6447533B2 (en) * | 2016-02-19 | 2019-01-09 | 株式会社豊田自動織機 | Weft insertion control method and weft insertion control apparatus for air jet 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 |
| JP7388322B2 (en) * | 2020-09-07 | 2023-11-29 | 株式会社豊田自動織機 | Air jet loom weft insertion device |
| CN113011854A (en) * | 2021-03-29 | 2021-06-22 | 广东溢达纺织有限公司 | Method and device for determining matching result of warp yarns and weft yarns and computer equipment |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2715078B2 (en) * | 1987-09-11 | 1998-02-16 | 津田駒工業株式会社 | Horizontal insertion control device |
| SE9002892D0 (en) * | 1990-09-10 | 1990-09-10 | Iro Ab | MANAGED EXTENSION BRAKE AT FURNITURE FOR TEXTILE MACHINERY, PREPARATION WIRE OF AIR OR WATER JET TYPE |
| JP2898773B2 (en) * | 1991-03-08 | 1999-06-02 | 津田駒工業株式会社 | Jet loom weft insertion control device |
| JPH0559638A (en) * | 1991-08-29 | 1993-03-09 | Toyota Central Res & Dev Lab Inc | Controller for picking in jet loom |
| JPH09228192A (en) * | 1996-02-14 | 1997-09-02 | Tsudakoma Corp | Control of picking |
| JP3608306B2 (en) * | 1996-09-19 | 2005-01-12 | 株式会社豊田自動織機 | Injecting action adjustment instruction device in jet loom |
| JPH10102353A (en) * | 1996-09-26 | 1998-04-21 | Micron Kk | Weft-controlling apparatus in loom |
-
2003
- 2003-10-08 JP JP2003349475A patent/JP4399228B2/en not_active Expired - Fee Related
-
2004
- 2004-10-07 BE BE2004/0492A patent/BE1016322A3/en not_active IP Right Cessation
- 2004-10-08 CN CN200410083565.7A patent/CN1605669B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| BE1016322A3 (en) | 2006-08-01 |
| JP4399228B2 (en) | 2010-01-13 |
| JP2005113319A (en) | 2005-04-28 |
| CN1605669A (en) | 2005-04-13 |
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