CN102433664A - Method for controlling warp dynamic tension of loom based on active magnetoelectricity integrated rear beam - Google Patents
Method for controlling warp dynamic tension of loom based on active magnetoelectricity integrated rear beam Download PDFInfo
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- CN102433664A CN102433664A CN2011103188841A CN201110318884A CN102433664A CN 102433664 A CN102433664 A CN 102433664A CN 2011103188841 A CN2011103188841 A CN 2011103188841A CN 201110318884 A CN201110318884 A CN 201110318884A CN 102433664 A CN102433664 A CN 102433664A
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- back rest
- magnetoelectricity
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- loom
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Abstract
The invention relates to a method for controlling warp dynamic tension of a loom based on an active magnetoelectricity integrated rear beam, which comprises the following steps of: (1) making a cam type magnetoelectricity integrated rear beam provided with a cam profile; and (2) rotating and adjusting the cam type magnetoelectricity integrated rear beam by a drive device to change a track of warp yarn, controlling that the yarn tension is kept within an error range allowed by a system, and ensuring that the loom normally runs at a high speed. According to the method, the cam type magnetoelectricity integrated rear beam with relatively small inertia can be rotated by fine rotation, and the dynamic tension control of the whole yarn of the loom is realized.
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 integrated back rest of active magnetoelectricity.
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 integrated back rest of active magnetoelectricity, can realize 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 integrated back rest of active magnetoelectricity is provided, may further comprise the steps:
(1) produces the integrated back rest of cam-type magnetoelectricity that has cam contour;
(2) through drive unit the integrated back rest of cam-type magnetoelectricity 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 integrated back rest of cam-type magnetoelectricity 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 integrated back rest of cam-type magnetoelectricity as control signal.
The integrated back rest of cam-type magnetoelectricity described in the said step (1) is through in the position of the one or both ends of the cam-type back rest motor being installed and magnetic powder brake obtains.
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 integrated back rest of magnetoelectricity 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 integrated back rest of active magnetoelectricity 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; The use of magnetic powder brake has improved the braking characteristic of the back rest, and provides the required static moment of back rest stationary in a certain particular rotation angle.
Description of drawings
Fig. 1 is the integrated back rest structural representation of single motor magnetoelectricity of the present invention;
Fig. 2 is the integrated back rest structural representation of bi-motor magnetoelectricity of the present invention;
Fig. 3 is based on the yarn tension control block diagram of the integrated back rest of magnetoelectricity;
Fig. 4 is loom let-off and the coiling system sketch map that has the integrated back rest of magnetoelectricity.
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 integrated back rest of active magnetoelectricity, at first, adopts the cam-type back rest that has cam contour.Secondly, place motor and magnetic powder brake drive unit, the integrated back rest of formation cam-type magnetoelectricity 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 integrated back rest of cam-type magnetoelectricity of small rotation rotary inertia, realize the dynamic tension control of the whole yarn of loom, its concrete steps are following:
(1) produces the integrated back rest of cam-type magnetoelectricity that has cam contour.The integrated back rest of this cam-type magnetoelectricity 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 magnetic powder brake 3 through connecting axle 4, and said magnetic powder brake 3 links to each other with first motor 2 through connecting axle 4.Said first motor 2 links to each other with the control system with magnetic powder brake 3; 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 5.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 magnetic powder brake 3 through connecting axle 4, and said magnetic powder brake 3 links to each other with first motor 2 through connecting axle 4.The said cam-type back rest 1 other end links to each other with second motor 6 through connecting axle 4.Said first motor 2, second motor 6 link to each other with the control system with magnetic powder brake 3; Said control system links to each other with Yarn tension testing sensor.
The integrated back rest of this cam-type magnetoelectricity 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 integrated back rest of magnetoelectricity 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 integrated back rest of cam-type magnetoelectricity 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 integrated back rest of cam-type magnetoelectricity as control signal.
(4) according to control signal, drive unit is rotated adjustment to the integrated back rest of cam-type magnetoelectricity, 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 integrated back rest of magnetoelectricity 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 integrated back rest of active magnetoelectricity is characterized in that, may further comprise the steps:
(1) produces the integrated back rest of cam-type magnetoelectricity that has cam contour;
(2) through drive unit the integrated back rest of cam-type magnetoelectricity 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 integrated back rest of active magnetoelectricity 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 integrated back rest of cam-type magnetoelectricity 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 integrated back rest of cam-type magnetoelectricity as control signal.
3. the warp on loom dynamic tension control method based on the integrated back rest of active magnetoelectricity according to claim 1; It is characterized in that the integrated back rest of cam-type magnetoelectricity described in the said step (1) is through in the position of the one or both ends of the cam-type back rest motor being installed and magnetic powder brake obtains.
4. the warp on loom dynamic tension control method based on the integrated back rest of active magnetoelectricity 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).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103188841A CN102433664B (en) | 2011-10-19 | 2011-10-19 | Method for controlling warp dynamic tension of loom based on active magnetoelectricity integrated rear beam |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103188841A CN102433664B (en) | 2011-10-19 | 2011-10-19 | Method for controlling warp dynamic tension of loom based on active magnetoelectricity integrated rear beam |
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| CN102433664A true CN102433664A (en) | 2012-05-02 |
| CN102433664B CN102433664B (en) | 2013-11-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE807886A (en) * | 1972-11-29 | 1974-03-15 | Incotex Sa | Warp beam control mechanism - with automatic zero setting, based on tension variations in warp yarns |
| 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 |
| JP4085519B2 (en) * | 1999-05-28 | 2008-05-14 | 株式会社豊田自動織機 | Warp tension adjusting device for loom |
| CN201915208U (en) * | 2010-11-23 | 2011-08-03 | 东华大学 | Precision control device for tension force of yarn |
-
2011
- 2011-10-19 CN CN2011103188841A patent/CN102433664B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE807886A (en) * | 1972-11-29 | 1974-03-15 | Incotex Sa | Warp beam control mechanism - with automatic zero setting, based on tension variations in warp yarns |
| 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 |
| CN201915208U (en) * | 2010-11-23 | 2011-08-03 | 东华大学 | Precision control device for tension force of yarn |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN102433664B (en) | 2013-11-13 |
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