CN104562392A - Device for controlling air pressure within air-jet loom - Google Patents
Device for controlling air pressure within air-jet loom Download PDFInfo
- Publication number
- CN104562392A CN104562392A CN201410584571.4A CN201410584571A CN104562392A CN 104562392 A CN104562392 A CN 104562392A CN 201410584571 A CN201410584571 A CN 201410584571A CN 104562392 A CN104562392 A CN 104562392A
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- air
- pressure
- wefting insertion
- jet loom
- valve
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- 238000003780 insertion Methods 0.000 claims abstract description 86
- 230000037431 insertion Effects 0.000 claims abstract description 85
- 230000004888 barrier function Effects 0.000 claims description 29
- 230000004044 response Effects 0.000 claims description 14
- 238000006073 displacement reaction Methods 0.000 description 12
- 230000008859 change Effects 0.000 description 8
- 239000012530 fluid Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
- D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
- D03D47/3026—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
Abstract
The present invention relates to an apparatus for controlling the air pressure within the air jet loom. Weft insertion device for controlling the air pressure within the air jet loom, including: electric - pneumatic actuator, the electric - pneumatic actuator having an air spring pressure control unit which has a diaphragm, the main chamber and the secondary chamber; air supply solenoid valve, which controls the supply of compressed air towards the separator main chamber; bleed solenoid valve, which controls the release of the main chamber of compressed air; pilot valve, which controls compressed air supply and air tank between mobility; and bleed solenoid valve, which controls the release of the secondary chamber of compressed air. Pressure of the weft inserting timing determined lower limit pressure for actuating the air supply solenoid valve is set to be lower than the first pressure to complete weft insertion when the weft insertion start after the air jet loom.
Description
Technical field
The present invention relates to the equipment for controlling the compressed-air actuated wefting insertion pressure in air-jet loom.More specifically, the present invention relates to the equipment of the compressed-air actuated pressure of the wefting insertion of main burner and time nozzle controlling to be supplied to air-jet loom.
Background technology
Usually, in air-jet loom, the pressure of the high pressure air supplied by air supplies is conditioned device and is reduced to the level being applicable to wefting insertion.Subsequently, there is main burner and time nozzle that the compressed air reducing pressure is supplied to air-jet loom.In order to meet the demand that loom runs up with 1000 rpm or more speed, air-jet loom in recent years uses electronic-air-operated controller to replace the adjuster of manual operation or motor driving, such as, adjuster in disclosed in the Unexamined Patent Application Publication 6-73640 of Japan fluid jet loom.
The fluid jet loom of the above-mentioned publication quoted is provided with pressure-regulating valve, and it is positioned at the position of adjacent fluid pressure supply, for setting the fluid pressure of optimum wefting insertion and transmitting weft yarn.Use the Voltage force control valve wherein with pressure sensor widely, to control to maintain best parallel transmission conditions by automatic pressure between the on-stream period of fluid jet loom.Voltage force control valve performs FEEDBACK CONTROL by the back pressure cavity be sent on the input side of control valve by the pressure detected by the pressure sensor on the outlet side of control valve.Then, Voltage force control valve adjusts its opening by barrier film, and this barrier film can in response to the pressure differential displacement between the input side of control valve and outlet side to obtain required output pressure.
Come in the air-jet loom of wefting insertion at consumption of compressed air, the wefting insertion pressure drop when each execution wefting insertion.If pressure sensor detects the decline of wefting insertion pressure, then the pressure drop that electronic-air-operated controller detects in response to pressure sensor performs FEEDBACK CONTROL, to supply compressed air immediately to outlet side.Therefore, about 1000 FEEDBACK CONTROL of electronic disclosed in above-mentioned disclosure-air-operated controller execution per minute.The repetition overshoot of wefting insertion pressure can be caused for each wefting insertion execution FEEDBACK CONTROL, make thus to be difficult to wefting insertion pressure to remain on be suitable in the scope of wefting insertion.
Change for the wefting insertion pressure of wefting insertion causes being introduced into the change that parallel arrives the timing of the pre-position in loom on main Weft insertion nozzle opposition side, thus causes wefting insertion fault.Parallel due to change arrives this wefting insertion fault that causes of timing and reduces the quality of final fabric and reduce the running efficiency of air-jet loom.In addition, the frequent operation of electronic-air-operated controller can occur, this can shorten the life-span of electronic-air-operated controller significantly.
The present invention relates to provide a kind of in air-jet loom electronic-air-operated controller, it suppresses the change of compressed-air actuated wefting insertion pressure.
Summary of the invention
According to aspects of the present invention, provide a kind of equipment, this equipment be used for by air-jet loom electronic-air-operated controller is supplied to the compressed-air actuated wefting insertion Stress control of Weft insertion nozzle to goal pressure from air supplies by watertight aircase by treating.Electronic-air-operated controller comprises: adapt air spring pressure control unit, its secondary barrel having barrier film, the main chamber that the side of barrier film is formed and formed on the opposite side of barrier film, and described secondary barrel is communicated with watertight aircase; Pilot valve, its displacement in response to barrier film controls the compressed air stream flowed between air supplies and watertight aircase; Air solenoid supply valve, it controls the compressed air supply in main chamber from air supplies to barrier film and the pressure based on watertight aircase is controlled; Pressure-releasing electromagnetic valve, it controls the compressed air in main chamber and is controlled to the release of air and based on the pressure of watertight aircase; And vent valve, its displacement in response to barrier film controls the release of the compressed air in secondary barrel to air.In the equipment for controlling the compressed air pressure in air-jet loom, determine the threshold pression of the Weft insertion nozzle pressure of the timing of the start-up function of air solenoid supply valve be configured to lower than air-jet loom start after complete first time wefting insertion time wefting insertion pressure.
Illustrate that the accompanying drawing of the principle of the invention will be apparent to other aspects of the present invention and advantage from following description in combination with example.
Accompanying drawing explanation
The present invention and target thereof and advantage can be understood best, in accompanying drawing by reference to the following description of currently preferred embodiment and accompanying drawing:
Fig. 1 is block diagram, and it illustrates the compressed-air actuated pipe-line system had according in the air-jet loom of the equipment for controlling compressed air pressure of the embodiment of the present invention;
Fig. 2 be schematically show in the pipe-line system of Fig. 1 electronic-view of the structure of air-operated controller;
Fig. 3 is the curve map of the wefting insertion pressure that the change controlled by electronic-air-operated controller is shown;
Fig. 4 is the view of the operation schematically showing-air-operated controller electronic when the air solenoid supply valve of electronic-air-operated controller does not activated; And
Fig. 5 is the view of the operation schematically showing-air-operated controller electronic when air solenoid supply valve activated.
Detailed description of the invention
Hereinafter with reference to Fig. 1-Fig. 5, the embodiment according to the equipment for controlling the compressed air pressure in air-jet loom of the present invention is described.With reference to figure 1, Reference numeral 1 refers to air-jet loom and Reference numeral 2 refers to for the compressed-air actuated pipe-line system in the Weft inserter of air-jet loom 1.The air supplies 3 be installed in textile mills comprises the device of such as air compressor and drying machine (all not shown) and by pipeline 4, compressed air is fed to air-jet loom 1.Pipeline 4 is connected to the pipeline 6 of air-jet loom 1 via the initial pressure valve 5 be arranged in air-jet loom 1.Initial pressure valve 5 controls the compressed-air actuated supply of leading to air-jet loom 1.
Filter 7 is connected in pipeline 6 and Pressure gauge 8 is connected in pipeline 6 in the downstream (observed by along fluid flow direction) of filter 7.The compressed-air actuated initial pressure supplied from air supplies 3 measured by Pressure gauge 8.Initial pressure is pre-conditioned to the level higher for the wefting insertion pressure of wefting insertion than air-jet loom 1.Pressure gauge 8 is connected to the primary air case 10 in pipeline 6 by electronic-air-operated controller 9.Pressure gauge 11 is connected at electronic-pipeline 6 between air-operated controller 9 and primary air case 10.
Compressed-air actuated initial pressure is reduced to wefting insertion pressure or is applicable to the pressure of preset pressure of wefting insertion by electronic-air-operated controller 9.The compressed air being reduced to wefting insertion pressure is supplied to primary air case 10 and is stored within it.The compressed-air actuated pressure be stored in primary air case 10 measured by Pressure gauge 11, that is, main burner pressure (or wefting insertion pressure), to check whether the pressure at main burner 13 place is in preset pressure.Master air valve 12 is connected in the pipeline 6 between primary air case 10 and main burner (or Weft insertion nozzle) 13.Master air valve 12 controls the compressed-air actuated supply of leading to main burner 13.It should be noted, primary air case 10 corresponds to watertight aircase of the present invention.
Pipeline 14 to be branched out with the pipeline 6 of electronic-air-operated controller 9 from Bonding pressure table 8 and is connected to the pipeline 6 being connected master air valve 12 and main burner 13 by choke valve 15, thus forms gentle breeze loop 16.Therefore, being continuously fed with main burner 13 by a small amount of air that choke valve 15 regulates, is also even like this when suspending wefting insertion.Owing to continuing to send gentle breeze from main burner 13, so the tip of the parallel be introduced into is held stably when suspending wefting insertion.
Pipeline 17 branches out from the pipeline 6 of Bonding pressure table 8 and electronic-air-operated controller 9 and is connected to time watertight aircase 19 by electronic-air-operated controller 18, and this electronic-air-operated controller 18 has the structure identical with electronic-air-operated controller 9 and function.The pipeline 17 connecting electronic-air-operated controller 18 and time watertight aircase 19 is provided with Pressure gauge 20.The compressed-air actuated initial pressure supplied from air supplies 3 is reduced to the pressure (or wefting insertion pressure) of the secondary nozzle be applicable to by shed open wefting insertion by electronic-air-operated controller 18.Therefore, the compressed air being adjusted to time nozzle exit pressure is stored in time watertight aircase 19.It should be noted, the secondary nozzle exit pressure of setting is substantially identical with the main burner pressure of setting.It should be noted, secondary watertight aircase 19 corresponds to watertight aircase of the present invention.
Secondary watertight aircase 19 is connected to four air valves 21 arranged along wefting insertion direction by pipeline 17.Multiple times nozzle (or Weft insertion nozzle) is divided into four groups 22, and secondary nozzle sets 22 is arranged along wefting insertion direction.Secondary air valve 21 is connected to corresponding time nozzle sets 22 by pipeline 17.Therefore, when secondary air valve 21 activated, from secondary watertight aircase 19 supply and the compressed air with the secondary nozzle exit pressure of regulation by the secondary nozzle sets 22 be fed to further corresponding to the secondary air nozzle 21 activated, and contribute to wefting insertion.
Pressure gauge 8,11 and 20 is electrically connected to the control unit 24 that is equipped with function panel 23 and the measurement data of initial pressure, main burner pressure and secondary nozzle exit pressure is sent to control unit 24.Control unit 24 comprises the storage area (not shown) of the data storing various setting value and send from Pressure gauge 8,11 and 20 and performs the operation part (not shown) of various calculating based on initial pressure, main burner pressure and secondary nozzle exit pressure.
In addition, for control to the power supply of electronic-air-operated controller 9,18 control program (not shown) and be used to guide pressure controlled program (not shown) and be stored in control unit 24.Control unit 24 has the various programs for operating air-jet loom 1, and carrys out start and stop motion of weft-insertion by sending a signal to master air valve 12 with time air valve 21 when wefting insertion.It should be noted, control unit 24 corresponds to the equipment for controlling the compressed air pressure in air-jet loom of the present invention.
Electronic-air-operated controller 9,18 has substantially identical structure.Therefore, in the present embodiment, the structure of electronic-air-operated controller 9 only will be described with reference to figure 2.Electronic-air-operated controller 9 comprises adapt air spring pressure control unit 25, pilot valve 26, vent valve 27, air solenoid supply valve 28 and pressure-releasing electromagnetic valve 29.The secondary barrel 32 that adapt air spring pressure control unit 25 has the barrier film 30 be placed in shell, the side of barrier film 30 is formed main chamber 31 in the enclosure and is formed on the opposite side of barrier film 30 in the enclosure.In response to the pressure differential between main chamber 31 and secondary barrel 32, barrier film 30 can towards main side, chamber 31 or the displacement of secondary barrel 32 side.
Main chamber 31 is connected air solenoid supply valve 28 and pressure-releasing electromagnetic valve 29 by path 33.Air solenoid supply valve 28 and pressure-releasing electromagnetic valve 29 are electrically connected to control unit 24 and are manipulated in response to the instruction unpack or closed from control unit 24.Air solenoid supply valve 28 is connected to the pipeline 6 being connected to air supplies 3 by path 34.When air solenoid supply valve 28 is opened, the compressed air with initial pressure flows into main chamber 31 by path 33.Pressure-releasing electromagnetic valve 29 has the gas vent 35 leading to air.When pressure-releasing electromagnetic valve 29 is opened, the compressed air in main chamber 31 is released to air by gas vent 35.
Pilot valve 26 is had and is connected to the entrance 36 of air supplies 3 by pipeline 6, is connected to the outlet 37 of primary air case 10 by pipeline 6.Pilot valve 26 is connected to the barrier film 30 of adapt air spring pressure control unit 25 and the displacement be manipulated in response to barrier film 30 and open and close.Particularly, when pressure higher than secondary barrel 32 of the pressure in main chamber 31, pilot valve 26 is opened, and when secondary barrel 32 isostasy in or pressure higher than main chamber 31 time closed.When pilot valve 26 is opened, the high pressure air on air supplies 3 side flows to primary air case 10 from air supplies 3.It should be noted, the pipeline 6 being connected to the outlet 37 of pilot valve 26 is communicated with secondary barrel 32 by path 38.
Vent valve 27 has the path 39 being communicated in secondary barrel 32 and the gas vent 40 leading to air.As the situation of pilot valve 26, vent valve 27 is open and close in response to the displacement of barrier film 30.Particularly, when main chamber 31 isostasy in or pressure higher than secondary barrel 32 time vent valve 27 close.When pressure higher than main chamber 31 of the pressure of secondary barrel 32, barrier film 30 is along the direction displacement causing vent valve 27 to be opened.Therefore, the compressed air in secondary barrel 32, the compressed air namely on outlet 37 side of pilot valve 26 is discharged from vent valve 40 and is flowed through path 38, secondary barrel 32 and path 39.
The setting value be associated with the Stress control of electronic-air-operated controller 9 is described referring now to Fig. 3.The compressed-air actuated target main mouth pressure be stored in primary air case 10 is configured to PT and this value is stored in control unit 24 in advance.Electronic-air-operated controller 9 controls main burner pressure and is adjusted to goal pressure PT to make pressure.In addition, representative determines that the PL of the threshold pression of the timing of the start-up function of air solenoid supply valve 28 and representative determine that the PU of the pressure upper limit of the timing of the start-up function of pressure-releasing electromagnetic valve 29 is set for main burner pressure and is stored in control unit 24.
The pressure of the main burner pressure P 2 when threshold pression PL is configured to be less than the main burner pressure P 1 when to complete first time wefting insertion after air-jet loom 1 starts and has also been greater than second time wefting insertion.According to embodiments of the invention, threshold pression PL is configured to the level between wefting insertion pressure P 1 and wefting insertion pressure P 2.Pressure upper limit PU is configured to the summation of the difference between goal pressure PT and goal pressure PT and threshold pression PL.
Such as, if threshold pression PL be configured to higher than air-jet loom 1 start after complete first time wefting insertion time main burner pressure P 1, then air solenoid supply valve 28 and pressure-releasing electromagnetic valve 29 activated and simultaneously main burner pressure is reduced during wefting insertion, and this causes bad frequent Stress control.Particularly, the Stress control of the air solenoid supply valve 28 activated when each wefting insertion causes overshoot, and activates pressure-releasing electromagnetic valve 29 when each wefting insertion.Due to Stress control frequently, main burner pressure can cannot reach goal pressure PT.Frequent actuation air solenoid supply valve 28 and pressure-releasing electromagnetic valve 29 can cause any parts damaging electromagnetic valve 28,29.
Such as, if threshold pression PL is configured to lower than main burner pressure P 2, then may due to the decline of main burner pressure actuation air solenoid supply valve 28 when third time and wefting insertion afterwards.Therefore, pressure controlled starting is delayed by and the decline of main burner pressure is apparent after the starting of air-jet loom 1, and has the result that wefting insertion fault can occur.
The control of electronic-air-operated controller 9 pairs of main burner pressure is described through referring now to Fig. 3-5.When air-jet loom 1 is started so that when operating, Pressure gauge 11 detects the compressed-air actuated pressure (main burner pressure) on the downstream of electronic-air-operated controller 9, and the pressure data detected is sent to control unit 24.As shown in Figure 3, after air-jet loom 1 starts, start first time wefting insertion, and thus main burner pressure drop.But, because the main burner pressure P 1 when completing wefting insertion is not reduced to threshold pression PL, so control unit 24 does not send the instruction of the air solenoid supply valve 28 opening electronic-air-operated controller 9.
Therefore, air solenoid supply valve 28 and the pressure-releasing electromagnetic valve 29 of electronic-air-operated controller 9 remain closed, as shown in Figure 4.But due to the main burner pressure of change, the pressure in the secondary barrel 32 of adapt air spring pressure control unit 25 reduces.Therefore, be shifted towards secondary barrel 32 at the pressure lower diaphragm plate 30 in main chamber 31, the displacement indicated from imaginary line particularly, to the position of solid line Fig. 4, is opened to make pilot valve 26.Opening of pilot valve 26 allows high pressure air to be flow to pipeline 6 primary air case 10 side by the outlet 37 of pilot valve 26 from air supplies 3 side, and this increases main burner pressure.Because the insufficient pressure when air-jet loom 1 starts in main chamber 31 is enough high to making barrier film 30 significantly be shifted, so main burner pressure can not be added to goal pressure PT.
As shown in Figure 3, because main burner pressure reduces when first time wefting insertion, so start second time wefting insertion when main burner pressure is less than goal pressure PT.Therefore, main burner pressure drops to the threshold pression PL at Fig. 3 mid point A place further, and still declines further before second time wefting insertion terminates.Control unit 24 compares the data of the main burner pressure detected sent from Pressure gauge 11 and the threshold pression PL be stored in control unit 24 constantly.If control unit 24 determines that the main burner pressure detected is less than threshold pression PL, then control unit 24 sends the instruction of actuation air solenoid supply valve 28.
The solenoid response of air solenoid supply valve 28 is energized in the instruction from control unit 24 and opens as shown in Figure 5.High pressure air on air supplies 3 side flows into the main chamber 31 of adapt air spring pressure control unit 25 by path 34, air solenoid supply valve 28 and path 33.Pressure in main chamber 31 is increased due to such high pressure air, thus causing barrier film 30 from the displacement of imaginary line to Fig. 5 the position of solid line to open pilot valve 26.
High pressure air in pipeline 6 on air supplies 3 side is flowed in the pipes 6 on primary air case 10 sides with outlet 37 by the entrance 36 of pilot valve 26, and main burner pressure is increased.Pre-determine in response to from the number of times of commanding actuator air solenoid supply valve 28 of control unit 24 and the duration of this actuating of air solenoid supply valve 28.Main burner pressure is lowered to P2 when completing second time wefting insertion, and the actuating then in response to air solenoid supply valve 28 increases fast.Third time wefting insertion was started before main burner pressure reaches pressure upper limit PU.
Because air solenoid supply valve 28 activated and the increase of main burner pressure, the main burner pressure therefore when completing third time wefting insertion is not less than threshold pression PL.Therefore, control unit 24 does not send actuation instructions to air solenoid supply valve 28.As shown in Figure 4, air solenoid supply valve 28 and pressure-releasing electromagnetic valve 29 are closed.But main burner pressure is lowered when completing third time wefting insertion and pressure therefore in secondary barrel 32 is lowered.Therefore, the pressure lower diaphragm plate 30 in main chamber 31 is from the position of imaginary line towards the displacement indicated by solid line.
When barrier film 30 is shifted, pilot valve 26 is opened and high pressure air on air supplies 3 side flows therefore to increase main burner pressure towards primary air case 10.Pressure when completing third time wefting insertion in main chamber 31 is enough high, and reason is that air solenoid supply valve 28 activated.Therefore, the displacement of barrier film 30 is large, and the high pressure air of q.s is supplied to primary air case 10, thus main burner pressure is increased to above goal pressure PT.The displacement of barrier film 30 caused by the main burner pressure of change suppresses the reduction of the main burner pressure caused due to third time wefting insertion, and main burner pressure is maintained near goal pressure PT.
In the present embodiment, pressure upper limit PU and threshold pression PL is configured to make goal pressure PT and the difference between these pressure upper limit PU and threshold pression PL be identical.But according to the present invention, these pressure differentials can be configured to be different.Such as, the value of the main burner force value of (third time after air-jet loom 1 starts and wefting insertion afterwards) controlled increase during the normal operating that pressure upper limit PU can be configured to higher than air-jet loom 1.In the present embodiment, during the operation of air-jet loom 1, main burner pressure changes near goal pressure PT.According to the present invention, do not need capping pressure P U.Although electronic-air-operated controller 9 is paid close attention in description above, but its also can be applicable to be connected to secondary case 19 electronic-air-operated controller 18 and the pressure of secondary nozzle that controlled by electronic-air-operated controller 18.
According to embodiments of the invention, threshold pression PL is set to and can the electronic-air solenoid supply valve 28 of air-operated controller 9,18 and the actuating number of times of pressure-releasing electromagnetic valve 29 is suppressed to minimum lower than wefting insertion pressure when completing first time wefting insertion after starting at air-jet loom 1.During the operation of air-jet loom 1, wefting insertion pressure controls by barrier film 30, and this barrier film 30 can be shifted in response to the decline of wefting insertion pressure during wefting insertion.Therefore, actuation air solenoid supply valve 28 and pressure-releasing electromagnetic valve 29 is not needed.Therefore, according to embodiments of the invention, by preventing the large change of wefting insertion pressure by wefting insertion pressure stability near goal pressure PT, and reduce the actuating number of times of air solenoid supply valve 28 and pressure-releasing electromagnetic valve 29 simultaneously, thus extend the life-span of electronic-air-operated controller 9,18.
Structure of the present invention is not limited to above-described embodiment, but can make various amendment in main scope of the present invention.The present invention can exemplarily be revised as follows.
(1) according to embodiments of the invention, threshold pression PL be wefting insertion pressure P 1 when completing first time wefting insertion after air-jet loom 1 starts and complete second time wefting insertion time the mean value of wefting insertion pressure P 2.But PL can be the arbitrary value in the scope between wefting insertion pressure P 1 and P2.
(2) the present invention can be applied to have be disposed in main burner 13 upstream for drawing the series nozzle of parallel and being provided with the multicolor air jet loom of multiple main burner 13.
Claims (3)
1. one kind by air-jet loom (1) electronic-air-operated controller (9,18) will treat from air supplies (3) by watertight aircase (10,19) Weft insertion nozzle (13 is fed to, 22) compressed-air actuated wefting insertion Stress control is to the equipment (24) of goal pressure (PT), described electronic-air-operated controller (9,18) comprising:
Adapt air spring pressure control unit (25), the main chamber (31) that described adapt air spring pressure control unit has barrier film (30), formed on the side of described barrier film (30) and the secondary barrel (32) formed on the opposite side of described barrier film (30), described secondary barrel (32) and described watertight aircase (10,19) are communicated with;
Pilot valve (26), the compressed air stream that described pilot valve flows between described air supplies (3) and described watertight aircase (10,19) in response to the shift control of described barrier film (30);
Air solenoid supply valve (28), described air solenoid supply valve controls the compressed-air actuated supply in main chamber (31) from described air supplies (3) to described barrier film (30) and the pressure based on described watertight aircase (10,19) is controlled;
Pressure-releasing electromagnetic valve (29), described pressure-releasing electromagnetic valve controls the pressure of the compressed air in described main chamber (31) to the release of air and based on described watertight aircase (10,19) and is controlled; And
Vent valve (27), described vent valve in response to described barrier film (30) shift control described in compressed air in secondary barrel (32) to the release of air;
The feature of described equipment (24) is
The threshold pression (PL) determining the wefting insertion pressure of the timing of the start-up function of described air solenoid supply valve (28) completes the wefting insertion pressure (P1) during first time wefting insertion after being configured to start lower than described air-jet loom (1).
2. the equipment (24) of the compressed air pressure in control air-jet loom (1) according to claim 1, is characterized in that
Described threshold pression (PL) completes the wefting insertion pressure (P2) during second time wefting insertion after being configured to start higher than described air-jet loom (1).
3. the equipment (24) of the compressed air pressure in control air-jet loom (1) according to claim 1 and 2, is characterized in that
The wefting insertion upper limit of pressure pressure (PU) determining the timing of the start-up function of described pressure-releasing electromagnetic valve (29) is configured to the summation of described goal pressure (PT) and the difference between described goal pressure (PT) and described threshold pression (PL).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-224127 | 2013-10-29 | ||
| JP2013224127A JP6119557B2 (en) | 2013-10-29 | 2013-10-29 | Compressed air pressure control device for air jet loom |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104562392A true CN104562392A (en) | 2015-04-29 |
| CN104562392B CN104562392B (en) | 2016-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410584571.4A Expired - Fee Related CN104562392B (en) | 2013-10-29 | 2014-10-28 | The equipment of the compressed air pressure in controlling air-jet loom |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6119557B2 (en) |
| CN (1) | CN104562392B (en) |
| BE (1) | BE1022324B1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106400279B (en) * | 2016-12-14 | 2017-11-24 | 浙江泰坦股份有限公司 | Air-jet loom aux. pressure control device |
| CN106702575B (en) * | 2017-01-10 | 2018-04-24 | 青岛天一红旗软控科技有限公司 | A kind of automatic air-jet loom weft insertion control system and method |
| JP2022116513A (en) | 2021-01-29 | 2022-08-10 | 株式会社豊田自動織機 | Weft insertion device for air jet loom |
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- 2013-10-29 JP JP2013224127A patent/JP6119557B2/en not_active Expired - Fee Related
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- 2014-10-21 BE BE2014/0752A patent/BE1022324B1/en not_active IP Right Cessation
- 2014-10-28 CN CN201410584571.4A patent/CN104562392B/en not_active Expired - Fee Related
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| JPH04185741A (en) * | 1990-11-16 | 1992-07-02 | Toyota Autom Loom Works Ltd | Control of air pressure for weft inserting in jet loom |
| JPH0673640A (en) * | 1992-08-27 | 1994-03-15 | Tsudakoma Corp | Method for controlling fluid pressure of fluid jet style loom and device therefor |
| US5816295A (en) * | 1996-02-14 | 1998-10-06 | Tsudakoma Kogyo Kabushiki Kaisha | Weft insertion control method |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2015086476A (en) | 2015-05-07 |
| CN104562392B (en) | 2016-08-24 |
| JP6119557B2 (en) | 2017-04-26 |
| BE1022324B1 (en) | 2016-03-25 |
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