CN202148394U - Pressure control system of jet loom - Google Patents
Pressure control system of jet loom Download PDFInfo
- Publication number
- CN202148394U CN202148394U CN201120259356U CN201120259356U CN202148394U CN 202148394 U CN202148394 U CN 202148394U CN 201120259356 U CN201120259356 U CN 201120259356U CN 201120259356 U CN201120259356 U CN 201120259356U CN 202148394 U CN202148394 U CN 202148394U
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- air
- control system
- electromagnetic valve
- jet loom
- pressure
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Abstract
The utility model provides a pressure control system of a jet loom, which is capable of automatically adjusting pressure and has low cost. The pressure control system of the jet loom comprises an air storage tank, a switch electromagnetic valve arranged at the position of a compressed air inlet of the air storage tank, a pressure sensor located in the air storage tank and a control unit respectively connected with the switch electromagnetic valve and the pressure sensor. The control unit is used for signal acquisition calculation and controlling the opening and closing of the switch electromagnetic valve according to calculation results. The pressure control system of the jet loom adopts the cheap switch electromagnetic valve to replace an expensive servo valve and enables the pressure in the air storage tank to reach a required stable pressure value by adjusting switch frequency and duty radio of the switch electromagnetic valve in real time, thereby not only meeting the requirements of the jet loom for stability of a pressure value, but also greatly lowering price cost of the control system.
Description
Technical field
The utility model relates to a kind of air-jet loom equipment, especially a kind of air-jet loom air pressure regulator control system.
Background technology
Air-jet loom is higher to the stability requirement of the adjusting of air pressure and air pressure, all is to use manual pressure regulating valve to regulate usually.When changing the kind of institute's fabric article, all to carry out the adjusting work of air pressure according to technological requirement at every turn.With two spray types is example, must regulate main jet 1 air pressure, main jet 2 air pressure, auxilliary jet pressure totally three pressure regulator valves, and other also possibly regulated and shear 1 air pressure, shear 2 air pressure, often spray 1 air pressure, often spray 2 air pressure etc., need the many of adjusting.Other types need the just more of adjusting such as four sprays, six sprays.The reason of increase or the like gradually of dirt in the special-shaped groove on the reducing gradually of the replacing of the air pressure of air feed, weft yarn yarn tube moving through regular meeting's emersion wave and diameter, the reed in the process that air-jet loom is weaved cotton cloth all will inevitably cause the instability (outstanding feature is the variation that weft yarn on average arrives angle) of wefting insertion work.And then possibly cause the increase that latitude stops, and loom efficiency descends, and influence is produced.Solving the present way of this type of problem is ceaselessly tours of inspection of accent machine worker, when finding that latitude stops more board, presses the mode of valve to adjust air pressure through regulating machinery manually, on average arrives angle to weft yarn and adjusts in the reasonable range.
Desirable settling mode is the air pressure that electric-control system detected and gathered main and auxiliary gas bag; On average arrive the difference of angle and target arrival angle based on weft yarn; Through automatic adjusting to adjusting servo pressure regulating valve (electronically controlled proportional valve); Change the pressure in the gas bag, it is consistent with target arrival angle to make weft yarn on average arrive angle.Because the price of electronically controlled proportional valve (servo valve) is too expensive, causes this kind mode to be difficult to be widely used in market, the cost reason is the key reason of this technology popularization of restriction.
The utility model content
The utility model provides a kind of can regulate air pressure automatically, and the low air-jet loom air pressure regulator control system of cost.
Realize the air-jet loom air pressure regulator control system of the utility model purpose; Comprise air accumulator; Be positioned at the switch electromagnetic valve at said air accumulator compressed air inlet place, be positioned at the baroceptor of said air accumulator, the control module that links to each other with baroceptor with said switch electromagnetic valve respectively; Said control module is used for the signals collecting computing, according to the opening and closing of operation result gauge tap electromagnetic valve.
Said control module also links to each other with the control system of air-jet loom, gathers weft yarn and arrives angle signal.
Said air-jet loom air pressure regulator control system also comprises the loom encoder that is used to gather the loom state, and said loom encoder links to each other with control module with said loom control system respectively.
The air-jet loom air pressure regulator control system of the utility model adopts cheap switch electromagnetic valve to substitute expensive servo valve, through the switching frequency and the dutycycle of real-time regulated switch electromagnetic valve valve, makes the pressure in the air accumulator reach required stable atmospheric pressure value.When normally weaving cotton cloth, on average arrive angle according to weft yarn again and on demand the pressure of air accumulator is regulated.Not only satisfied the requirement of air-jet loom, also greatly reduced the Costco Wholesale of control system the atmospheric pressure value stability.
Description of drawings
Fig. 1 is the structural representation of the utility model air-jet loom air pressure regulator control system.
Fig. 2 do the utility model air-jet loom the loom angle with use the gas corresponding diagram.
The specific embodiment
As shown in Figure 1; The air-jet loom air pressure regulator control system of the utility model; Comprise air accumulator, be positioned at the switch electromagnetic valve at said air accumulator compressed air inlet place, be positioned at the baroceptor of said air accumulator; The control module that links to each other with said switch electromagnetic valve, baroceptor and loom control system respectively and be used to gather the loom encoder of loom state; Said control module is used for the signals collecting computing, according to the opening and closing of operation result gauge tap electromagnetic valve; Said loom encoder links to each other with control module with said loom control system respectively.
Air accumulator is used to store the compressed air that needs are stablized atmospheric pressure value, and switch electromagnetic valve is to control it by control module to open and close, and when opening gas bag is inflated.Control module carries out the collection computing of signal, opens frequency, dutycycle according to what the result controlled electromagnetic valve, and baroceptor is used to gather the compressed-air actuated pressure in the air accumulator.The loom encoder is mainly gathered the state of loom, and control module can carry out air pressure adjustment in advance thus and prepare.
The job step of the air-jet loom air pressure regulator control system of the utility model is following:
At first before loom was not worked, control module was according to the atmospheric pressure value P of man-machine interface input
s, open controlled air intake valve gas bag is inflated, through the air pressure pick-up transducers atmospheric pressure value in the gas bag is gathered during inflation; When the atmospheric pressure value in the gas bag reach set atmospheric pressure value 95% the time; Control module begins to export opening of pwm control signal control controllable inlet valve door closes to the gas bag inflation, and the reference frequency of PWM is 100Hz, according to the gas bag atmospheric pressure value of gathering back; Regulate formula through PI, calculate the dutycycle of pwm signal.The air pressure of current gas bag is P
N-1, after the inflation through a PWM cycle, air pressure is P
n, the changing value of air pressure is Δ P
nIf, adopting the same pwm signal in the next cycle inflation, its air pressure change value is Δ P
N+1, for the variation of gas bag internal gas pressure, can regard Δ P as basically so
n≈ Δ P
N-1Can roughly extrapolate the next PWM cycle thus and inflate the variation of gas bag air pressure afterwards, compare with setting air pressure, formula is following:
When T＞1: get T=1, promptly the dutycycle of this moment is 100%.
When T＜0.01, get T=0, promptly the dutycycle of this moment is 0%, stops to regulate, inflation is accomplished.
K here
mBe regulating system, but through the experiment determination data.
K in the middle of the formula
mValue roughly by quantity decision with the electromagnetic valve of gas, confirmed following data form through test repeatedly, can find K according to the content of data form
mValue.If the quantity of the electromagnetic valve that uses is many, so K
mValue just bigger than normal, if the quantity of the electromagnetic valve that uses is few, K so
mValue just less than normal.
| The |
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| K m | 0.1 | 0.25 | 0.32 | 0.4 | 0.44 | 0.5 | 0.56 | 0.67 |
When not having electromagnetic valve to use gas, promptly this moment, the main frame angle was outside with the gas scope, regulated according to the atmospheric pressure value of current air pressure and setting, if the gas bag atmospheric pressure value is lower than the atmospheric pressure value of setting, then got K according to last table
m=0.1 regulates, if the gas bag atmospheric pressure value reaches the setting atmospheric pressure value, then stops to regulate, and waits for the adjusting of next time using gas.
Weft yarn as shown in Figure 2 arrives angle and uses the gas corresponding diagram, in the process that loom is started working, the operating characteristic through loom we can know loom have stage with gas.In general, air-jet loom is spent between 330 degree 60 and is used the gas in the gas bag to carry out wefting insertion work, and all the other angles are interior without the gas in the gas bag; Therefore control module is controlled according to the current angle that runs to of loom in real time; When arrival 60 was spent, loom began to carry out wefting insertion work, and this moment, air pressure Real-time and Dynamic regulation and control system began to carry out work so; In order to ensure stablizing of air pressure; At first open air intake valve and inflate, calculate the dutycycle of pwm signal then according to top formula, accomplish inflation.
The air pressure regulator control system of this air-jet loom; The target air pressure value is directly set through man-machine interface; System gathers the actual pressure of air accumulator (main gas bag, auxilliary gas bag) in real time; Switching frequency and dutycycle through adjustment switch electromagnetic valve valve after the comparison operation make the air accumulator actual pressure identical with setting; Data through baroceptor feeds back to can see that the fluctuation range of its atmospheric pressure value is ± 5%, and actual wefting insertion effect is also very good, can substitute the mode that traditional air pressure valve is regulated fully.
Claims (3)
1. air-jet loom air pressure regulator control system; It is characterized in that: comprise air accumulator; Be positioned at the switch electromagnetic valve at said air accumulator compressed air inlet place, be positioned at the baroceptor of said air accumulator, the control module that links to each other with baroceptor with said switch electromagnetic valve respectively; Said control module is used for the signals collecting computing, controls the opening and closing of said switch electromagnetic valve according to operation result.
2. air-jet loom air pressure regulator control system according to claim 1 is characterized in that: said control module also links to each other with the control system of air-jet loom, gathers weft yarn and arrives angle signal.
3. air-jet loom air pressure regulator control system according to claim 1 and 2 is characterized in that: also comprise the loom encoder that is used to gather the loom state, said loom encoder links to each other with control module with said loom control system respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120259356U CN202148394U (en) | 2011-07-21 | 2011-07-21 | Pressure control system of jet loom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120259356U CN202148394U (en) | 2011-07-21 | 2011-07-21 | Pressure control system of jet loom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202148394U true CN202148394U (en) | 2012-02-22 |
Family
ID=45589459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120259356U Withdrawn - After Issue CN202148394U (en) | 2011-07-21 | 2011-07-21 | Pressure control system of jet loom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202148394U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102286832A (en) * | 2011-07-21 | 2011-12-21 | 北京经纬纺机新技术有限公司 | Air pressure regulating system of jet loom and method thereof |
| CN115852562A (en) * | 2023-03-03 | 2023-03-28 | 山东日发纺织机械有限公司 | Air jet loom, air jet loom control system and method |
-
2011
- 2011-07-21 CN CN201120259356U patent/CN202148394U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102286832A (en) * | 2011-07-21 | 2011-12-21 | 北京经纬纺机新技术有限公司 | Air pressure regulating system of jet loom and method thereof |
| CN102286832B (en) * | 2011-07-21 | 2013-11-20 | 北京经纬纺机新技术有限公司 | Air pressure regulating system of jet loom and method thereof |
| CN115852562A (en) * | 2023-03-03 | 2023-03-28 | 山东日发纺织机械有限公司 | Air jet loom, air jet loom control system and method |
| CN115852562B (en) * | 2023-03-03 | 2023-05-05 | 山东日发纺织机械有限公司 | Air jet loom, air jet loom control system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120222 Effective date of abandoning: 20131120 |
|
| RGAV | Abandon patent right to avoid regrant |