CN101602449B - On-line detection and real-time control devices for tension of yarn - Google Patents
On-line detection and real-time control devices for tension of yarn Download PDFInfo
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- CN101602449B CN101602449B CN2009100162490A CN200910016249A CN101602449B CN 101602449 B CN101602449 B CN 101602449B CN 2009100162490 A CN2009100162490 A CN 2009100162490A CN 200910016249 A CN200910016249 A CN 200910016249A CN 101602449 B CN101602449 B CN 101602449B
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Abstract
The invention provides on-line detection and real-time control devices for the tension of yarn, relating to an on-line detection device and a real-time control device for the tension of the yarn. A turntable which is under the action of a coil spring and is provided with two swinging arms used for hanging and tying the yarn and an angle inductor form the on-line detection device for the tension of the yarn; an output signal of the angle inductor is connected to a central controller, an output signal of the central controller is connected to a motor controller, and the motor controller is connected with an uncoiling motor and a coiling motor of the yarn; and the motor controller and the central controller form the real-time control device. The invention can realize the on-line monitoring and the on-line and real-time regulation of the tension of the yarn in the processing and production process of textile equipment yarn or other similar products and ensure the uniformity of the tension of the yarn.
Description
Technical field:
The present invention relates to online detection of a kind of yarn tension and real-time control apparatus, device is used for detecting and controlling the tension force of yarn in Weaving device and like device.
Background technology:
In Weaving device yarn processing process, or in the processing process of other similar products (like metal filament, fibrous glass etc.), the online detection of tension force, On-line Control are the difficult problems of puzzlement industry always.The yarn tension control device that existing Weaving device was equipped with; All be that the whole method of personnel selection wage adjustment is regulated yarn tension; Such as methods such as adjustment clump weight weight or briquetting quantity, adjustment spring pressures; Its shortcoming is exactly to realize the on-line monitoring and real-time automatic compensation of yarn tension, and artificial adjustment tension force not only increases the recruitment cost, and has personal error.
Summary of the invention:
The purpose of this invention is to provide online detection of a kind of yarn tension and real-time control apparatus; In Weaving device and like device, be used for detecting and controlling the tension force of silk thread; Solve manual method and regulate on-line monitoring and real-time automatic compensation, the increase recruitment cost that to realize yarn tension, the technological deficiency that has personal error; Not influenced by thickness of yarn and kind, not influenced by the tension range of technological requirement.
The objective of the invention is to realize as follows: it relates to yarn tension on-line measuring device and real-time control apparatus, has under the wind spring effect and two rotating disk and angle inductors that are used for the swing arm of prolong knot yarn are housed to constitute the yarn tension on-line measuring device; The output signal of angle inductor is connected to central controller, and the output signal of central controller is connected to electric machine controller, and electric machine controller connects unwinding motor and the coiling motor to yarn, and electric machine controller and central controller constitute real-time control apparatus.Detect and feed back the real-time change situation of yarn tension by the yarn tension on-line measuring device; The tension variation situation that central controller feeds back according to the tension force on-line measuring device and the requirement of technological parameter are transferred to electric machine controller with control signal in real time; By the speed of electric machine controller adjustment coiling motor and unwinding motor, reach the purpose of adjustment yarn tension.
There are two swing arms on same diameter the front of rotating disk, and the center of rotating disk has and its fixing rotating shaft, has an enwinding spring axis to pass the endoporus of rotating shaft; Be connected with wind spring between the rear end of enwinding spring axis and the housing; Angle inductor to rotating shaft is housed on the housing, circumferentially is connected through the calibration control apparatus between the adjusting knob of the front end clamping band scale of enwinding spring axis, adjusting knob and rotating disk; Circumferential relative position between hand adjustment rotating disk and the enwinding spring axis can be regulated the yarn tension initial value.
The adjusting knob rear end is inserted in the circumferential toroidal cavity of rotating disk; Rotating disk outer peripheral face upper edge radial direction is equipped with a hole; In this hole, be placed with steel ball, spring and jackscrew successively; Steel ball withstands on the outer peripheral face of adjusting knob rear end in one of them the gear groove in some gear grooves that are uniformly distributed with, and above structure constitutes the calibration control apparatus between adjusting knob and the rotating disk, through it can the hand adjustment rotating disk and enwinding spring axis between circumferential relative position and locking.
Described angle inductor is an incremental encoder, perhaps is Hall element, perhaps is potential device.First-selected incremental encoder, its advantage is that stable output signal reliably, is not vulnerable to external interference, can also do long Distance Transmission through after the difference processing, but cost is higher relatively; Also can adopt relatively cheap Hall element or potential device as the angle inductor according to cost and technological requirement, but performance and conformability are slightly poor.The Hall element manufacturing cost is lower, but signal receives the interference of external electromagnetic field easily, and conformability was difficult to adjustment when a plurality of Hall elements used simultaneously; The potential device signal stabilization, cost is lower, but long-time operational failure rate is high, is not suitable for the workplace of long-term continuous rotation.
Central controller is the single board computer (SBC) that possesses the demonstration of technological parameter and function is set.Comprise mainly on the panel that tension force overload alarm indicator lamp, the digital demonstration of tension force, run indicator, operation button, parameter are provided with button, parameter adjustment button, acknowledge button, stop button etc.
Electric machine controller is a speed setting controller.
Man-machine interface and Programmable Logic Controller as upper computer, are connected with each central controller with fieldbus.Simultaneously online detection of the yarn tension of a plurality of unit and real-time control linkage are got up, accomplish the concentrated setting of each cell process parameter and show real-time tension variation by man-machine interface; Through the fieldbus mode all central controllers are managed as upper computer by Programmable Logic Controller.
The present invention can realize on-line monitoring, online in real time adjustment to yarn tension in the processing process of Weaving device yarn or other similar products, guaranteed the conformability of yarn tension.
Description of drawings:
Fig. 1 is the structural representation of online detection of yarn tension of the present invention and real-time control apparatus.
Fig. 2 is the structural representation of yarn tension on-line measuring device among the present invention.
Fig. 3 is the Fieldbus Control block diagram of online detection of yarn tension of the present invention and real-time control apparatus.
The specific embodiment:
With reference to Fig. 1, it is made up of yarn tension on-line measuring device 105 and real-time control apparatus.Have under the wind spring effect and two rotating disk and angle inductors that are used for the swing arm of prolong knot yarn are housed and constitute yarn tension on-line measuring device 105; The output signal of angle inductor is connected to central controller 101; The output signal of central controller 101 is connected to electric machine controller 102 and 106; Electric machine controller 102 and 106 is connected the unwinding motor 103 and coiling motor 107 to yarn respectively, and electric machine controller 102,106 and central controller 101 constitute real-time control apparatus.Central controller 101, electric machine controller 102, unwinding motor 103, spindle 104, yarn tension on-line measuring device 105, electric machine controller 106, coiling motor 107, spindle 108 etc. are partly formed the tension closed loop control system, realize the online detection of yarn tension, control in real time.Yarn gets into tension force on-line measuring device 105 via the guide wire that yarn position is played fixation; After tension force is surveyed swing arm, get into another guide wire that yarn position is played fixation, accomplish the tension force detection sampling process of tension force on-line measuring device yarn.Accomplished the tension range of technological requirement and the setting of monitoring precision by central controller 101, central controller 101 mainly comprises with the lower part: tension force overload alarm indicator lamp, the digital demonstration of tension force, run indicator, operation button, parameter are provided with button, parameter adjustment button, acknowledge button, stop button etc.When yarn tension on-line measuring device 105 detects the tension variation of yarn and transmits corresponding electric signal to central controller 101; This electric signal can be voltage, electric current, pulse, the transformable pulse-width signal of dutycycle etc. as requested, and central controller 101 sends speed adjustment order through program calculating back to electric machine controller 102, electric machine controller 106 according to the variation and the combined process parameter of above-said current signal.If overtension, the speed that then reduces coiling motor 107 accordingly also/or improve the speed of unwinding motor 103; If tension force is less than normal, the speed that then improves coiling motor 107 accordingly also/or reduce the speed of unwinding motor 103.
With reference to Fig. 2, there are two swing arms 3 on same diameter the front of rotating disk 4, and the center of rotating disk 4 has through jackscrew 11 and its fixing rotating shaft 6; Rotating shaft 6 is supported through rear bearing 18 and front bearing 19; Have an enwinding spring axis 5 to pass the endoporus of rotating shaft 6, be connected with wind spring 13 between the rear end of enwinding spring axis 5 and the housing 12, the rear end of enwinding spring axis 5 is fixed through the mandrel 14 and the inner ring of wind spring 13; The outer ring of wind spring 13 and housing 12 are fixing; Wind spring 13 rear portions are covered with coil spring box 15, have angle to change reference point 16 in the rotating shaft 6, and the angle inductor 17 to rotating shaft 6 is housed on the housing 12; Circumferentially be connected through the calibration control apparatus between the adjusting knob 1 of the front end of enwinding spring axis 5 through jackscrew 2 clamping band scales, adjusting knob 1 and rotating disk 4.The concrete structure of calibration control apparatus is: adjusting knob 1 rear end is inserted in the circumferential toroidal cavity of rotating disk 4; Rotating disk 4 outer peripheral face upper edge radial directions are equipped with a hole; In this hole, be placed with steel ball 7, spring 8 and jackscrew 10 successively; Steel ball 7 withstands on the adjusting knob 1 rear end outer peripheral face in some gear grooves that are uniformly distributed with in one of them gear groove, can manual regulation rotating disk 4 and adjusting knob 1 between circumferential relative position.The regulation stall method: fix rotating disk 4 with a hand, with an other manual rotation adjusting knob 1, spinning force passes to steel ball 7, steel ball 7 compression springs 8, and steel ball 7 breaks away from the gear groove, and rotating disk 4 produces relative motion with adjusting knob 1 and accomplishes gear switch.When regulation stall, adjusting knob 1 drives wind spring 13 tensionings through enwinding spring axis 5, mandrel 14 or lax tension force with the yarn that is suitable for various tension ranges detects.When yarn tension increased, the torsion that yarn tension overcomes wind spring 13 drove the swing arm 3 be fixed on the rotating disk 4 and does the anticlockwise direction rotation with rotating disk 4; Otherwise when yarn tension reduced, the torsion of wind spring 13 was greater than the twisting force of yarn tension to swing arm 3, and wind spring 13 drives the swing arm 3 that is fixed on the rotating disk 4 and makes right-hand revolution with rotating disk 4.In order to prevent the excessive yarn snarl that causes of rotating disk 4 anglecs of rotation, on rotating disk 4, be provided with spacing collision block 9.When yarn drives rotating disk 4 rotations, drive rotating shaft 6, enwinding spring axis 5, adjusting knob 1 and rotate simultaneously, angle inductor 17 is exported corresponding electric signal, the online measuring ability of realization yarn tension according to the direction and the angle of the different rotation of rotating disk 4.This yarn tension on-line measuring device is fixed on the mounting bracket 20 through bolt 21.
With reference to Fig. 3, man-machine interface 110 and Programmable Logic Controller 109 as upper computer, are connected with each central controller 101 with fieldbus.Simultaneously to online detection of the yarn tension of a plurality of unit and control in real time.Online detection of each yarn tension and real-time control apparatus are coupled together, accomplish the concentrated setting of each cell process parameter and show real-time tension variation by man-machine interface 110; Manage by 109 pairs of all central controllers of Programmable Logic Controller.
The present invention is applicable to the various occasions that need tension force detection, Tension Control; Like bobbin-winding machine, rewinder, reeled yarn machine, warping machine, cladding wire machine or the like, also be applicable to the tension force that is used for detecting and controlling silk thread in other like device (like the Fabricating machinery of metal filament, fibrous glass etc.).
Claims (6)
1. online detection of yarn tension and real-time control apparatus; It relates to yarn tension on-line measuring device and real-time control apparatus, it is characterized in that: have under a wind spring (13) effect and two rotating disks (4) that are used for the swing arm (3) of prolong knot yarn are housed to constitute yarn tension on-line measuring devices (105) with angle inductors (17); The output signal of angle inductor (17) is connected to central controller (101); The output signal of central controller (101) is connected to electric machine controller (102,106); Electric machine controller (102,106) connects unwinding motor (103) and the coiling motor (107) to yarn, and electric machine controller (102,106) and central controller (101) constitute real-time control apparatus; There are two swing arms (3) on same diameter the front of rotating disk (4); The center of rotating disk (4) has and its fixing rotating shaft (6); There is an enwinding spring axis (5) to pass the endoporus of rotating shaft (6), is connected with wind spring (13) between the rear end of enwinding spring axis (5) and the housing (12), the angle inductor (17) to rotating shaft (6) is housed on the housing (12); Circumferentially be connected through the calibration control apparatus between the adjusting knob (1) of the front end clamping band scale of enwinding spring axis (6), adjusting knob (1) and rotating disk (4).
2. online detection of yarn tension according to claim 1 and real-time control apparatus; It is characterized in that: adjusting knob (1) rear end is inserted in the circumferential toroidal cavity of rotating disk (4); Rotating disk (4) outer peripheral face upper edge radial direction is equipped with a hole; In this hole, be placed with steel ball (7), spring (8) and jackscrew (10) successively, steel ball (7) withstands on the outer peripheral face of adjusting knob (1) rear end in one of them the gear groove in some gear grooves that are uniformly distributed with.
3. online detection of yarn tension according to claim 1 and real-time control apparatus is characterized in that: described angle inductor (17) is an incremental encoder, perhaps is Hall element, perhaps is potential device.
4. online detection of yarn tension according to claim 1 and real-time control apparatus is characterized in that: central controller (101) is the single board computer (SBC) that possesses the demonstration of technological parameter and function is set.
5. online detection of yarn tension according to claim 1 and real-time control apparatus is characterized in that: electric machine controller (102,106) is a speed setting controller.
6. online detection of yarn tension according to claim 1 and real-time control apparatus is characterized in that: man-machine interface (110) and Programmable Logic Controller (109) as upper computer, are connected with each central controller (101) with fieldbus.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100162490A CN101602449B (en) | 2009-06-17 | 2009-06-17 | On-line detection and real-time control devices for tension of yarn |
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| CN2009100162490A CN101602449B (en) | 2009-06-17 | 2009-06-17 | On-line detection and real-time control devices for tension of yarn |
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| CN101602449A CN101602449A (en) | 2009-12-16 |
| CN101602449B true CN101602449B (en) | 2012-02-01 |
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