CN104562392B - The equipment of the compressed air pressure in controlling air-jet loom - Google Patents
The equipment of the compressed air pressure in controlling air-jet loom Download PDFInfo
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- CN104562392B CN104562392B CN201410584571.4A CN201410584571A CN104562392B CN 104562392 B CN104562392 B CN 104562392B CN 201410584571 A CN201410584571 A CN 201410584571A CN 104562392 B CN104562392 B CN 104562392B
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- wefting insertion
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- 238000003780 insertion Methods 0.000 claims abstract description 87
- 230000037431 insertion Effects 0.000 claims abstract description 86
- 230000004888 barrier function Effects 0.000 claims abstract description 31
- 230000004044 response Effects 0.000 claims description 14
- 230000003213 activating effect Effects 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 description 11
- 230000008859 change Effects 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 6
- 239000012530 fluid Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 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
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
- D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
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- 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
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Abstract
The present invention relates to the equipment of compressed air pressure in controlling air-jet loom.The equipment of the compressed-air actuated wefting insertion pressure in controlling air-jet loom includes: electropneumatic controller, and this electropneumatic controller has air spring pressure control unit, and this unit has barrier film, main chamber and secondary barrel；Air solenoid supply valve, its compressed-air actuated supply controlling to lead to the main chamber of barrier film；Pressure-releasing electromagnetic valve, it controls the compressed-air actuated release in main chamber；Guiding valve, it controls the compressed-air actuated flowing between air supplies and watertight aircase；And pressure-releasing electromagnetic valve, it controls the compressed-air actuated release in secondary barrel.Determine the wefting insertion pressure threshold pression of the wefting insertion pressure of the timing for activating air solenoid supply valve completes wefting insertion for the first time less than air-jet loom after being configured to start time.
Description
Technical field
The present invention relates to the equipment of compressed-air actuated wefting insertion pressure in controlling air-jet loom.More particularly it relates to control the equipment of the compressed-air actuated pressure of the wefting insertion of the main burner to air-jet loom to be supplied and time nozzle.
Background technology
Generally, in air-jet loom, air supplies the pressure of the high pressure air supplied is conditioned device and is reduced to be applicable to the level of wefting insertion.Subsequently, the compressed air with reduction pressure is supplied to main burner and time nozzle of 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 manually operated or adjuster of motor driving, such as disclosed in Unexamined Patent Application Publication 6-73640 of the Japan adjuster in 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.It is widely used the voltage force regulating valve wherein with pressure sensor, in order to control to maintain optimal parallel transmission conditions by automatic pressure during the operating of fluid jet loom.Voltage force regulating valve performs FEEDBACK CONTROL by the back pressure cavity being sent to the pressure that the pressure sensor on the outlet side by regulation valve is detected regulate on the input side of valve.Then, voltage force regulating valve adjusts its opening by barrier film, and the pressure differential displacement that this barrier film may be in response to regulate between input side and the outlet side of valve is to obtain required output pressure.
In consumption of compressed air carrys out the air-jet loom of wefting insertion, when performing wefting insertion every time, wefting insertion pressure declines.If pressure sensor detects the decline of wefting insertion pressure, the most electronic-air-operated controller declines execution FEEDBACK CONTROL in response to the pressure that pressure sensor detects, in order to supply compressed air is to outlet side immediately.Therefore, about 1000 FEEDBACK CONTROL of the electronic-air-operated controller execution per minute disclosed in above-mentioned disclosure.Punching was repeated, so that be difficult to remain in the range of wefting insertion wefting insertion pressure for what each wefting insertion performed that FEEDBACK CONTROL can cause wefting insertion pressure.
Change for the wefting insertion pressure of wefting insertion causes the change being introduced into the timing of the pre-position that parallel arrives in loom on main Weft insertion nozzle opposition side, thus causes wefting insertion fault.This wefting insertion fault caused due to the parallel arrival timing of change reduces the quality of final fabric and reduces the running efficiency of air-jet loom.In addition, it may occur that the frequent operation of electronic-air-operated controller, this can be significantly reduced the life-span of electronic-air-operated controller.
The present invention relates to provide a kind of electronic-air-operated controller in air-jet loom, it suppresses the change of compressed-air actuated wefting insertion pressure.
Summary of the invention
According to aspects of the present invention, it is provided that a kind of equipment, this equipment is for being 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 by the electronic-air-operated controller in air-jet loom.Electronic-air-operated controller includes: air spring pressure control unit, and it has barrier film, the main chamber formed on the side of barrier film and the secondary barrel formed on the opposite side of barrier film, and described secondary barrel connects with watertight aircase；Guiding valve, it controls the compressed air stream of flowing between air supplies and watertight aircase in response to the displacement of barrier film；Air solenoid supply valve, it controls the compressed air supply from the main chamber of air supplies to barrier film and pressure based on watertight aircase is controlled；Pressure-releasing electromagnetic valve, release and the pressure based on watertight aircase of the compressed air in its main chamber of control to air are controlled；And vent valve, it controls the compressed air in secondary barrel to the release of air in response to the displacement of barrier film.For controlling in the equipment of the compressed air pressure in air-jet loom, determine the wefting insertion pressure threshold pression of the Weft insertion nozzle pressure of the timing of the start-up function of air solenoid supply valve completes wefting insertion for the first time less than air-jet loom after being configured to start time.
In from the description below, it is apparent to other aspects of the present invention and advantage in conjunction with the accompanying drawing being illustrated by way of example the principle of the invention.
Accompanying drawing explanation
The present invention and target thereof and advantage can be best understood by, in accompanying drawing by the described below and accompanying drawing with reference to currently preferred embodiment:
Fig. 1 is block diagram, and it illustrates the compressed-air actuated pipe-line system in the air-jet loom with the equipment for controlling compressed air pressure according to embodiments of the present invention；
Fig. 2 is the view of the structure of the electronic-air-operated controller in the pipe-line system schematically showing Fig. 1；
Fig. 3 is the curve map of the wefting insertion pressure illustrating the change controlled by electronic-air-operated controller；
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
The embodiment of the equipment for controlling the compressed air pressure in air-jet loom according to the present invention is described hereinafter with reference to Fig. 1-Fig. 5.With reference to Fig. 1, the compressed-air actuated pipe-line system that reference 1 refers to air-jet loom and reference 2 refers in the Weft inserter of air-jet loom 1.The air supplies 3 being installed in textile mills includes such as air compressor and the device of drying machine (the most 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 being arranged in air-jet loom 1.Initial pressure valve 5 controls to lead to the compressed-air actuated supply of air-jet loom 1.
In filter 7 is connected pipeline 6 and Pressure gauge 8 is connected in pipeline 6 in the downstream (as along observed by fluid flow direction) of filter 7.The compressed-air actuated initial pressure from air supplies 3 supply measured by Pressure gauge 8.Initial pressure is pre-conditioned to the higher level of wefting insertion pressure for wefting insertion than air-jet loom 1.The primary air case 10 that Pressure gauge 8 is connected in pipeline 6 by electronic-air-operated controller 9.Pressure gauge 11 is coupled in 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 in it.The compressed-air actuated pressure being stored in primary air case 10 measured by Pressure gauge 11, i.e. main burner pressure (or wefting insertion pressure), in order to checks whether the pressure at main burner 13 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 to lead to the compressed-air actuated supply of main burner 13.It should be noted that primary air case 10 is corresponding to the watertight aircase of the present invention.
Pipeline 14 branches out from the pipeline 6 connecting Pressure gauge 8 and electronic-air-operated controller 9 and is connected to connect master air valve 12 and the pipeline 6 of main burner 13 by choke valve 15, thus forms gentle breeze loop 16.Therefore, a small amount of air being throttled valve 15 regulation is continuously fed with main burner 13, is also even such when suspending wefting insertion.Owing to continuously sending out gentle breeze from main burner 13, so the tip of the parallel being introduced into is held stably when suspending wefting insertion.
Pipeline 17 branches out from the pipeline 6 connecting Pressure gauge 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 be applicable to the pressure (or wefting insertion pressure) of the secondary nozzle 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 that the main burner pressure of the secondary nozzle exit pressure set and setting is essentially identical.It should be noted that secondary watertight aircase 19 is corresponding to the 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 nozzle sets 22 by pipeline 17.Therefore, when secondary air valve 21 activated, supply from secondary watertight aircase 19 and secondary nozzle sets 22 that the compressed air of the secondary nozzle exit pressure with regulation is further supplied to corresponding to the secondary air nozzle 21 activateding, and contribute to wefting insertion.
Pressure gauge 8,11 and 20 is electrically connected to be equipped with the control unit 24 of 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 includes storing various setting value and the storage part (not shown) of the data from Pressure gauge 8,11 and 20 transmission and performing the operation part (not shown) of various calculating based on initial pressure, main burner pressure and secondary nozzle exit pressure.
Additionally, the control program (not shown) for the control extremely power supply of electronic-air-operated controller 9,18 and the program (not shown) for guiding pressure control are stored in control unit 24.Control unit 24 has various programs for operating air-jet loom 1, and starts when wefting insertion and stop motion of weft-insertion by sending a signal to master air valve 12 and time air valve 21.It should be noted that control unit 24 is corresponding to the equipment for controlling the compressed air pressure in air-jet loom of the present invention.
Electronic-air-operated controller 9,18 has essentially identical structure.Therefore, in the present embodiment, reference will be made to only Fig. 2 and describe the structure of electronic-air-operated controller 9.Electronic-air-operated controller 9 includes air spring pressure control unit 25, guides valve 26, vent valve 27, air solenoid supply valve 28 and pressure-releasing electromagnetic valve 29.Air spring pressure control unit 25 have be placed in shell barrier film 30, on the side of barrier film 30, be formed main chamber 31 in the enclosure and on the opposite side of barrier film 30, be formed secondary barrel 32 in the enclosure.In response to the pressure differential between main chamber 31 and secondary barrel 32, barrier film 30 can shift towards main side, chamber 31 or 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 from the instruction unpack of control unit 24 or Guan Bi.Air solenoid supply valve 28 is connected to be connected to the pipeline 6 of 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.
Guide valve 26 to have to be connected to the entrance 36 of air supplies 3 by pipeline 6, be connected to the outlet 37 of primary air case 10 by pipeline 6.Valve 26 is guided to be connected to the barrier film 30 of air spring pressure control unit 25 and be manipulated into the displacement in response to barrier film 30 and open and close.Specifically, valve 26 is guided to open when the pressure in main chamber 31 is higher than the pressure of secondary barrel 32, and the Guan Bi when the pressure of secondary barrel 32 equalizes in or is higher than the pressure in main chamber 31.When guiding valve 26 to open, the high pressure air on air supplies 3 side flows to primary air case 10 from air supplies 3.It should be noted that be connected to guide the pipeline 6 of the outlet 37 of valve 26 to be connected 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 guided the situation of valve 26, vent valve 27 is opened in response to the displacement of barrier film 30 and is closed.Specifically, when the pressure in main chamber 31 equalizes in or is higher than the pressure of secondary barrel 32, vent valve 27 closes.When the pressure of secondary barrel 32 is higher than the pressure in main chamber 31, barrier film 30 is along the direction displacement causing vent valve 27 to be opened.Therefore, the compressed air in secondary barrel 32, i.e. compressed air on outlet 37 side guiding valve 26 are discharged from vent valve 40 and flow by path 38, secondary barrel 32 and path 39.
The setting value being 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 being stored in primary air case 10 is configured to PT and this value is previously stored in control unit 24.Electronic-air-operated controller 9 controls main burner pressure so that pressure is adjusted to goal pressure PT.Additionally, the PU of the PL and the pressure upper limit of the timing representing the start-up function determining pressure-releasing electromagnetic valve 29 representing the threshold pression of the timing of the start-up function determining air solenoid supply valve 28 is set and is stored in for main burner pressure in control unit 24.
The pressure of main burner pressure P2 when threshold pression PL is configured to less than main burner pressure P1 when completing first time wefting insertion after starting at air-jet loom 1 and also greater than completes second time wefting insertion.According to embodiments of the invention, threshold pression PL is configured to the level between wefting insertion pressure P1 and wefting insertion pressure P2.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 is configured to be higher than after air-jet loom 1 starts main burner pressure P1 when completing first time wefting insertion, then air solenoid supply valve 28 and pressure-releasing electromagnetic valve 29 activated and main burner pressure is reduced during wefting insertion simultaneously, and this causes bad frequent Stress control.Specifically, the Stress control of the air solenoid supply valve 28 activateding when each wefting insertion caused punching, and activated pressure-releasing electromagnetic valve 29 when each wefting insertion.Due to Stress control frequently, main burner pressure can be unable to reach goal pressure PT.Frequently actuating air solenoid supply valve 28 and pressure-releasing electromagnetic valve 29 can cause any parts damaging magnetic valve 28,29.
Such as, if threshold pression PL is configured to less than main burner pressure P2, then be likely to be due to declining of main burner pressure and activate 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 from after the starting of air-jet loom 1, and has the result that wefting insertion fault can occur.
Describe by the electronic-air-operated controller 9 control to main burner pressure referring now to Fig. 3-5.When air-jet loom 1 is activated so as to operation, 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 it is shown on figure 3, start wefting insertion for the first time after air-jet loom 1 starts, and thus main burner pressure decline.But, because the main burner pressure P1 when completing wefting insertion is not reduced to threshold pression PL, 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 remains closed, as shown in Figure 4.But, due to the main burner pressure of change, the pressure in the secondary barrel 32 of air spring pressure control unit 25 reduces.Therefore, the pressure lower diaphragm plate 30 in main chamber 31 shifts towards secondary barrel 32, and the displacement specifically indicated from imaginary line is to the position of solid line Fig. 4, so that guiding valve 26 to open.Guiding opening of valve 26 to allow high pressure air from air supplies 3 side by guiding the outlet 37 of valve 26 to flow to the pipeline 6 primary air case 10 side, this increases main burner pressure.Because the insufficient pressure in main chamber 31 is enough high to making barrier film 30 significantly shift, so main burner pressure can not be added to goal pressure PT when air-jet loom 1 starts.
As it is shown on figure 3, because main burner pressure reduces when first time wefting insertion, so in the case of main burner pressure is less than goal pressure PT, start second time wefting insertion.Therefore, main burner pressure is further lowered into the threshold pression PL at the A of Fig. 3 midpoint, and declines the most further before second time wefting insertion terminates.Control unit 24 compares the data of the main burner pressure detected from Pressure gauge 11 transmission and the threshold pression PL being 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 activating 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 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 causes the position of barrier film 30 solid line from the displacement of imaginary line to Fig. 5 to open guiding valve 26.
The high pressure air in pipeline 6 on air supplies 3 side flows in the pipe 6 on primary air case 10 side by the entrance 36 and outlet 37 guiding valve 26 so that main burner pressure increases.The duration of this actuating of the predetermined number of times in response to the commanding actuator air solenoid supply valve 28 from control unit 24 and 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 quickly increases.Third time wefting insertion was started before main burner pressure reaches pressure upper limit PU.
Activateding due to air solenoid supply valve 28 and main burner pressure increases, therefore the main burner pressure when completing third time wefting insertion is not less than threshold pression PL.Therefore, control unit 24 does not sends 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 therefore the pressure in secondary barrel 32 is lowered.Therefore, the pressure lower diaphragm plate 30 in main chamber 31 is from the displacement being positioned against indicated by solid line of imaginary line.
When barrier film 30 shifts, guide valve 26 to open and high pressure air on air supplies 3 side flows towards primary air case 10 therefore to increase main burner pressure.When completing third time wefting insertion, the pressure in main chamber 31 is sufficiently high, and reason is that air solenoid supply valve 28 activated.Therefore, the displacement of barrier film 30 is big, 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, the difference that pressure upper limit PU and threshold pression PL is set so that between goal pressure PT and these pressure upper limit PU and threshold pression PL is identical.But, according to the present invention, these pressure differentials can be configured to be different.Such as, pressure upper limit PU can be configured to higher than 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 of air-jet loom 1.In the present embodiment, during the operation of air-jet loom 1, main burner pressure changes near goal pressure PT.It is not necessary according to the invention that set pressure upper limit PU.Although electronic-air-operated controller 9 is paid close attention in description above, but its electronic-air-operated controller 18 that also apply be applicable to be connected to secondary case 19 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 being less than the wefting insertion pressure started when completing wefting insertion for the first time afterwards at air-jet loom 1 can be suppressed to minimum by 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.During the operation of air-jet loom 1, wefting insertion pressure is controlled by barrier film 30, the decline of wefting insertion pressure when this barrier film 30 may be in response to wefting insertion and shift.Therefore, there is no need to activate air solenoid supply valve 28 and pressure-releasing electromagnetic valve 29.Therefore, according to embodiments of the invention, by preventing the big change of wefting insertion pressure by wefting insertion pressure stability near goal pressure PT, and reduce air solenoid supply valve 28 and the actuating number of times of pressure-releasing electromagnetic valve 29 simultaneously, thus extend the life-span of electronic-air-operated controller 9,18.
The structure of the present invention is not limited to above-described embodiment, but various modifications may be made in the main scope of the present invention.The present invention can exemplarily be revised as follows.
(1) according to embodiments of the invention, wefting insertion pressure P1 when threshold pression PL is to complete for the first time wefting insertion after air-jet loom 1 starts and the mean value of wefting insertion pressure P2 when completing second time wefting insertion.But, PL can be between wefting insertion pressure P1 and P2 in the range of arbitrary value.
(2) 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. will treat to be fed to by watertight aircase a compressed-air actuated wefting insertion Stress control equipment to goal pressure (PT) for Weft insertion nozzle from air supplies (3) by the electronic-air-operated controller in air-jet loom (1), described electronic-air-operated controller includes:
Air spring pressure control unit (25), described air spring pressure control unit has barrier film (30), the main chamber (31) formed on the side of described barrier film (30) and the secondary barrel (32) formed on the opposite side of described barrier film (30), and described secondary barrel (32) connects with described watertight aircase；
Guide valve (26), the compressed air stream that described guiding response valve flows between described air supplies (3) and described watertight aircase in the shift control of described barrier film (30)；
Air solenoid supply valve (28), described air solenoid supply valve controls the compressed-air actuated supply from the main chamber (31) of described air supplies (3) to described barrier film (30) and pressure based on described watertight aircase is controlled；
Pressure-releasing electromagnetic valve (29), the release of the compressed air in described pressure-releasing electromagnetic valve control main chamber (31) to air and pressure based on described watertight aircase are controlled；And
Vent valve (27), described vent valve is in response to the release of the compressed air in secondary barrel (32) described in the shift control of described barrier film (30) to air；
Described equipment is characterised by
Determine the wefting insertion pressure (P1) threshold pression (PL) of the wefting insertion pressure of the timing of the start-up function for described air solenoid supply valve (28) completes wefting insertion for the first time less than described air-jet loom (1) after being configured to start time.
Equipment the most according to claim 1, it is characterised in that
Described threshold pression (PL) completes the wefting insertion pressure (P2) during second time wefting insertion higher than described air-jet loom (1) after being configured to start.
Equipment the most according to claim 1 and 2, it is characterised in that
Determine that wefting insertion upper limit of pressure pressure (PU) of the timing of the start-up function for described pressure-releasing electromagnetic valve (29) is configured to the summation of the difference between described goal pressure (PT) and 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 |
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| Publication Number | Publication Date |
|---|---|
| CN104562392A CN104562392A (en) | 2015-04-29 |
| CN104562392B true CN104562392B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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 |
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| Country | Link |
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| 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 |
| JP7489003B2 (en) | 2021-01-29 | 2024-05-23 | 株式会社豊田自動織機 | Air jet weaving machine weft insertion device |
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| CN102203334A (en) * | 2008-10-22 | 2011-09-28 | 必佳乐公司 | Method and device for monitoring an insertion system for a weaving machine |
| 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 |
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| JPH07122197B2 (en) * | 1984-12-25 | 1995-12-25 | 日産テクシス株式会社 | Weft inserting device for air jet loom |
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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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| US5816295A (en) * | 1996-02-14 | 1998-10-06 | Tsudakoma Kogyo Kabushiki Kaisha | Weft insertion control method |
| CN1500925A (en) * | 2002-11-14 | 2004-06-02 | 津田驹工业株式会社 | Air supply apparatus for air jet loom |
| CN102203334A (en) * | 2008-10-22 | 2011-09-28 | 必佳乐公司 | Method and device for monitoring an insertion system for a weaving machine |
| CN101994201A (en) * | 2009-08-25 | 2011-03-30 | 株式会社丰田自动织机 | Weft holding device in a jet pick 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015086476A (en) | 2015-05-07 |
| CN104562392A (en) | 2015-04-29 |
| JP6119557B2 (en) | 2017-04-26 |
| BE1022324B1 (en) | 2016-03-25 |
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