CN102505292A - Active motor-driven back rest based method for controlling dynamic tension of warps on loom - Google Patents
Active motor-driven back rest based method for controlling dynamic tension of warps on loom Download PDFInfo
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- CN102505292A CN102505292A CN2011103188822A CN201110318882A CN102505292A CN 102505292 A CN102505292 A CN 102505292A CN 2011103188822 A CN2011103188822 A CN 2011103188822A CN 201110318882 A CN201110318882 A CN 201110318882A CN 102505292 A CN102505292 A CN 102505292A
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Abstract
The invention relates to an active motor-driven back rest based method for controlling dynamic tension of warps on a loom. The method comprises the following steps of: (1) manufacturing a cam type motor-driven back rest with a cam contour; and (2) carrying out rotation adjustment on the cam type motor-driven back rest by a driving device to change the paths of the warps, controlling the warp tension to be maintained in the error range allowed by the system and further ensuring high-speed and normal operation of the loom. The method has the following beneficial effect: the cam type motor-driven back rest with smaller moment of inertia is slightly rotated to realize control of the dynamic tension of the whole warps on the loom.
Description
Technical field
The present invention relates to the control technology field of warp yarns dynamic tension, particularly relate to a kind of warp on loom dynamic tension control method based on the active electronic back rest.
Background technology
In the loom course of work, warp yarns tension force is extremely important and must a consider technological parameter, and the balance and stability of tension force is directly connected to the quality and the production efficiency of product, also is the assurance of loom ability high speed stable operation.Therefore when the loom high speed operation,, seem particularly important to the accurate measurement and the control of warp yarns tension force on the loom.
At present, the adjusting of warp on loom yarn tension and control method are through the warp let-off and batch and the mobile back rest that wherein the warp let-off and the mobile back rest are main.Electronic warp feeding is generally adopted in the warp let-off of a new generation's high-speed weaving machine, has improved the stability and the control accuracy of warp tension greatly.But because bigger through the yarn inertia of axle and coiling thereof, the yarn tension control performance of electronic let-off control system is difficult to satisfy the dynamic tension control requirement of yarn, so the control target of electronic let-off control system only is the stable control of the mean tension of yarn.Secondly, beam action has two after existing the moving: the one, and the elongated compensation of yarn track that pairs of openings causes is in order to avoid opening yarn transient state overtension; The 2nd, through spring and tension pick-up, realize the detection and the compensation of transient state tension force.Cause the elongated compensating action of yarn track owing to move back rest pairs of openings; In case fix after setting; Then the spring in the girder system system belongs to open loop to the compensation of transient state tension force; Therefore as a whole, the existing mobile back rest all belongs to passive type to the control action of yarn dynamic tension, does not have online self-regulation and control action to the dynamic tension of warp thread.Also there is pair back rest to add hydraulic damping mechanism, magnetic fluid damping mechanism and the mobile back rest able to programme mechanism at present; But all to be regulating action to yarn tension all belong to open loop, passive type for they, do not have the on-line automatic regulatory function of warp yarns power tension force.
Summary of the invention
Technical problem to be solved by this invention provides a kind of warp on loom dynamic tension control method based on the active electronic back rest, realizes the dynamic tension control of the whole yarn of loom.
The technical solution adopted for the present invention to solve the technical problems is: a kind of warp on loom dynamic tension control method based on the active electronic back rest is provided, may further comprise the steps:
(1) produces the electronic back rest of the cam-type that has cam contour;
(2) through drive unit the electronic back rest of cam-type is rotated adjustment, changes the track of warp yarns, the control yarn tension maintains in the error range that system allows, guarantee loom at a high speed, normal operation.
Further comprising the steps of between said step (1) and the step (2):
(A) doing difference to yarn tension data value measured on the electronic back rest of cam-type and system's preset value relatively calculates;
(B) after difference was relatively calculated, the data of gained were used to control the drive unit of the electronic back rest of cam-type as control signal.
The electronic back rest of cam-type described in the said step (1) is to obtain through in the position of the one or both ends of the cam-type back rest motor being installed.
The yarn tension data value detects through the tension force detecting sensor and obtains in the said step (2).
Beneficial effect
Owing to adopted above-mentioned technical scheme; The present invention compared with prior art; Have following advantage and good effect: the electronic back rest of the present invention belongs to active; Through the anglec of rotation of the control cam back rest, can online adjusting and control warp yarns tension force, so the control accuracy of yarn tension is greatly improved; Compare with the warp axle; It is little that the back rest has a rotary inertia, and the fixing characteristics of numerical value, and through improving design such as adopting the hollow back rest; The inertia of the back rest is expected to than reduces closely to 1～2 one magnitude through the minimum inertia of axle; Therefore the control sensitivity of weaving machine yarns dynamic tension will be greatly enhanced, and make the dynamic control of yarn tension become possibility, will be the breakthrough of the control of present weaving machine yarns mean tension; The back rest both can replace original mobile back rest, also can be used as an independently back rest (see figure 4), had so both helped designs simplification, transformation and the upgrading of existing loom, also helped new loom development, was convenient to this technology popularization; Formed the new control pattern of loom---divide tension force control technology pattern, i.e. the mean tension of electronic let-off control system control yarn, and the dynamic tension of the yarn that the active electronic back rest is used to control.The control model of this minute tension force will help the development of each module, and the modularization that also helps system is integrated, for the specialized technical research and the development of loom provides technical foundation.
Description of drawings
Fig. 1 is single motor powered back rest structural representation of the present invention;
Fig. 2 is the electronic back rest structural representation of bi-motor of the present invention;
Fig. 3 is based on the yarn tension control block diagram of the electronic back rest;
Fig. 4 is loom let-off and the coiling system sketch map that has the electronic back rest.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in the restriction scope of the present invention.Should be understood that in addition those skilled in the art can do various changes or modification to the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiment of the present invention relates to a kind of warp on loom dynamic tension control method based on the active electronic back rest, at first, adopts the cam-type back rest that has cam contour.Secondly, place motor and magnetic powder brake drive unit, the electronic back rest of formation cam-type in the position of the one or both ends of the cam-type back rest.Change the track of warp yarns at last through the anglec of rotation of controlling this back rest, thereby realize control action the tension force of yarn.This method principle is: through the less electronic back rest of cam-type of small rotation rotary inertia, realize the dynamic tension control of the whole yarn of loom, its concrete steps are following.
(1) produces the electronic back rest of the cam-type that has cam contour.The electronic back rest of this cam-type can be as shown in Figure 1, comprises the cam-type back rest 1, and the said cam-type back rest 1 one ends link to each other with first motor 2 through connecting axle 3.Said first motor 2 links to each other with the control system; Said control system links to each other with Yarn tension testing sensor.The said cam-type back rest 1 other end links to each other with bearing bindiny mechanism 4.Also can be as shown in Figure 2, comprise the cam-type back rest 1, the said cam-type back rest 1 one ends link to each other with first motor 2 through connecting axle 3.The said cam-type back rest 1 other end links to each other with second motor 5 through connecting axle 3.Said first motor 2 links to each other with the control system respectively with second motor 5; Said control system links to each other with Yarn tension testing sensor.
The electronic back rest of this cam-type both can replace original mobile back rest; Also can be used as an independently back rest (see figure 4); Among Fig. 4, through the warp yarns of axle on 41 successively through the electronic back rest 42, the fixedly back rest 43, the mobile back rest 44, opening 45, beating-up mechanism 46 and spooler 47.
(2) doing difference to yarn tension data value measured on the electronic back rest of cam-type and system's preset value relatively calculates.Promptly detect the suffered tension force of yarn in real time, and will detect to such an extent that tension force and the warp yarns tension force numerical value of predefined phase are weekly done difference relatively through the tension force detecting sensor.
(3) after difference was relatively calculated, the data of gained were used to control the drive unit of the electronic back rest of cam-type as control signal.
(4) according to control signal, drive unit is rotated adjustment to the electronic back rest of cam-type, changes the track of warp yarns, and the control yarn tension maintains in the error range that system allows, guarantee loom at a high speed, normal operation.
Fig. 3 is a yarn tension control block diagram of the present invention, among Fig. 3, and F
rFor setting tension force, F
sFor actual detected tension force,
For back rest corner regulated value,
Be the real-time corner of the back rest, ω
rBe back rest rotational angular velocity set-point, ω
sBe the real-time rotational angular velocity of the back rest, F '
sBe warp tension.Be not difficult to find that the electronic back rest of the present invention belongs to active, through the anglec of rotation of the control cam back rest, can online adjusting and control warp yarns tension force, so the control accuracy of yarn tension is greatly improved; Compare with the warp axle; It is little that the back rest has a rotary inertia, and the fixing characteristics of numerical value, and through improving design such as adopting the hollow back rest; The inertia of the back rest is expected to than reduces closely to 1～2 one magnitude through the minimum inertia of axle; Therefore the control sensitivity of weaving machine yarns dynamic tension will be greatly enhanced, and make the dynamic control of yarn tension become possibility, will be the breakthrough of the control of present weaving machine yarns mean tension.
Claims (4)
1. the warp on loom dynamic tension control method based on the active electronic back rest is characterized in that, may further comprise the steps:
(1) produces the electronic back rest of the cam-type that has cam contour;
(2) through drive unit the electronic back rest of cam-type is rotated adjustment, changes the track of warp yarns, the control yarn tension maintains in the error range that system allows, guarantee loom at a high speed, normal operation.
2. the warp on loom dynamic tension control method based on the active electronic back rest according to claim 1 is characterized in that, and is further comprising the steps of between said step (1) and the step (2):
(A) doing difference to yarn tension data value measured on the electronic back rest of cam-type and system's preset value relatively calculates;
(B) after difference was relatively calculated, the data of gained were used to control the drive unit of the electronic back rest of cam-type as control signal.
3. the warp on loom dynamic tension control method based on the active electronic back rest according to claim 1; It is characterized in that the electronic back rest of cam-type described in the said step (1) is to obtain through in the position of the one or both ends of the cam-type back rest motor being installed.
4. the warp on loom dynamic tension control method based on the active electronic back rest according to claim 1 is characterized in that, the yarn tension data value detects through the tension force detecting sensor and obtains in the said step (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103188822A CN102505292B (en) | 2011-10-19 | 2011-10-19 | Active motor-driven back rest based method for controlling dynamic tension of warps on loom |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103188822A CN102505292B (en) | 2011-10-19 | 2011-10-19 | Active motor-driven back rest based method for controlling dynamic tension of warps on loom |
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| CN102505292A true CN102505292A (en) | 2012-06-20 |
| CN102505292B CN102505292B (en) | 2013-11-13 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556371A (en) * | 2013-11-11 | 2014-02-05 | 江南大学 | Method for controlling warp tension of sample weaving machine |
| CN104452056A (en) * | 2014-11-21 | 2015-03-25 | 东华大学 | Rear beam for improving yarn dynamic tension control effect of weaving machine and use method thereof |
| CN105179640A (en) * | 2015-10-09 | 2015-12-23 | 江苏工程职业技术学院 | Method for making let-off tension adjusting deformation cam roller |
| CN114967422A (en) * | 2022-04-22 | 2022-08-30 | 海门喜满庭纺织品有限公司 | Warping machine intelligent detection and control system based on computer-aided decision |
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| SU1291627A1 (en) * | 1984-12-28 | 1987-02-23 | Московский Текстильный Институт Им.А.Н.Косыгина | Warp let-off motion of loom |
| JPH085519B2 (en) * | 1987-07-21 | 1996-01-24 | 株式会社タツノ・メカトロニクス | Oil leak detector |
| EP1008683A1 (en) * | 1998-12-07 | 2000-06-14 | Lindauer Dornier Gesellschaft M.B.H | Method for compensating the change in length and tension in the warp and loom for carrying out the method |
| CN1506513A (en) * | 2002-12-05 | 2004-06-23 | 津田驹工业株式会社 | Electric output control method for loom |
| RU2240390C2 (en) * | 2003-01-05 | 2004-11-20 | Государственное образовательное учреждение высшего профессионального образования Ивановская государственная текстильная академия (ИГТА) | Mechanism for tightening and releasing of warp on weaving machine |
| JP4085519B2 (en) * | 1999-05-28 | 2008-05-14 | 株式会社豊田自動織機 | Warp tension adjusting device for loom |
| CN201873829U (en) * | 2010-11-23 | 2011-06-22 | 东华大学 | Yarn tension control device for weaving machine |
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2011
- 2011-10-19 CN CN2011103188822A patent/CN102505292B/en active Active
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| SU1291627A1 (en) * | 1984-12-28 | 1987-02-23 | Московский Текстильный Институт Им.А.Н.Косыгина | Warp let-off motion of loom |
| JPH085519B2 (en) * | 1987-07-21 | 1996-01-24 | 株式会社タツノ・メカトロニクス | Oil leak detector |
| EP1008683A1 (en) * | 1998-12-07 | 2000-06-14 | Lindauer Dornier Gesellschaft M.B.H | Method for compensating the change in length and tension in the warp and loom for carrying out the method |
| JP4085519B2 (en) * | 1999-05-28 | 2008-05-14 | 株式会社豊田自動織機 | Warp tension adjusting device for loom |
| CN1506513A (en) * | 2002-12-05 | 2004-06-23 | 津田驹工业株式会社 | Electric output control method for loom |
| RU2240390C2 (en) * | 2003-01-05 | 2004-11-20 | Государственное образовательное учреждение высшего профессионального образования Ивановская государственная текстильная академия (ИГТА) | Mechanism for tightening and releasing of warp on weaving machine |
| CN201873829U (en) * | 2010-11-23 | 2011-06-22 | 东华大学 | Yarn tension control device for weaving machine |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556371A (en) * | 2013-11-11 | 2014-02-05 | 江南大学 | Method for controlling warp tension of sample weaving machine |
| CN104452056A (en) * | 2014-11-21 | 2015-03-25 | 东华大学 | Rear beam for improving yarn dynamic tension control effect of weaving machine and use method thereof |
| CN104452056B (en) * | 2014-11-21 | 2016-08-24 | 东华大学 | A kind of weaving machine yarns dynamic tension that improves controls the back rest and the using method thereof of effect |
| CN105179640A (en) * | 2015-10-09 | 2015-12-23 | 江苏工程职业技术学院 | Method for making let-off tension adjusting deformation cam roller |
| CN114967422A (en) * | 2022-04-22 | 2022-08-30 | 海门喜满庭纺织品有限公司 | Warping machine intelligent detection and control system based on computer-aided decision |
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| CN102505292B (en) | 2013-11-13 |
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