CN1045432A

CN1045432A - Elongation of Sizing machines sizing and squeezing roller pressure be the method and apparatus of control automatically

Info

Publication number: CN1045432A
Application number: CN 90100128
Authority: CN
Inventors: 程习主
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-01-11
Filing date: 1990-01-11
Publication date: 1990-09-19
Anticipated expiration: 2005-01-11
Also published as: CN1021838C

Abstract

The invention discloses a kind of Sizing machines and in sizing process, control the method and apparatus of sizing elongation, squeezing roller pressure automatically.It is by production technology and fabric variety requirement, in advance to sizing elongation a reference value and with the speed of a motor vehicle as the squeezing roller pressure a reference value, detect sizing elongation actual value and squeezing roller pressure actual value, relatively sizing extends a reference value and actual value and squeezing roller pressure a reference value and actual value, pass through automatic control system, automatically the control motor turns to and rotating speed, make the sizing elongation be controlled in the optimum range accurately, make squeezing roller pressure automatically follow the speed of a motor vehicle and change, to improve textile sizing and weave quality, output.

Description

Elongation of Sizing machines sizing and squeezing roller pressure be the method and apparatus of control automatically

The present invention relates to the robot control system(RCS) in the Sizing machines sizing process, specifically in sizing process to sizing elongation, squeezing roller pressure and sizing stable speed operation's automatic control.Wherein the automatic control of sizing elongation mainly is to dragging between the pick-up roll sizing roller and dragging pick-up roll revolution difference, speed discrepancy or to the automatic control of starching district, oven dry and dividing sinker district tension force and the automatic control of beam winding constant tension at squeezing roller.

Warp sizing is the critical process during cotton spinning is produced, and is closely related to the automatic control and the Sizing machines speed of a motor vehicle stable speed operation of sizing elongation and squeezing roller pressure in the weave quality of warp thread and the sizing process.Before this to the control of Sizing machines sizing elongation, the one, with the transposing change-speed gearing or dragging on the pick-up roll way of infantees to regulate the sizing elongation, operation is inconvenience extremely." the external new type sizing machine " of textile industry publishing house publication in 1981 discloses Sizing machines " QP " the elongation adjuster of Britain Xi Lai research institute, but it is not only the adjusting of starching district, oven dry dividing sinker district tension force level is arranged manually, and also will be under the dead ship condition the adjusting of tension force and to carry out at Sizing machines.In the sizing production process, adopt above method and apparatus, when tension variation or fluctuation, all can not automatically adjust, and control accuracy is low to tension force.The 2nd, the mode that beam winding tension force adopts adjusting frictional disk slippage to change beam winding speed is usually controlled, but after the package of beam of a loom strengthens, speed discrepancy from the creep speed to the normal speed is apart from increasing, transferring power increases, the loss of friction flannelette also sharply increases, it is frequent that it is changed, and workload increases, and adopts this regulative mode control beam winding tension force more and more difficult.To the also useful slip electric motor mode of control of beam winding tension force, but the slip electric motor characteristic is poor, and the Tension Control precision is too low.Also useful two d.c. motors, a driving side axle, the way of a transmission beam of a loom is controlled beam winding tension force, because of the control system imperfection, beam of a loom drive motor field supply can not increase with the increase of beam of a loom coil diameter, and the control system poor stability, can not carry out accurate adjustment to tension force, evil is encouraged in the heating of beam of a loom drive motor, so this way is not promoted yet." external new type sizing machine " also discloses a kind of method of regulating beam winding tension force with the PIV mechanical stepless transmission.But its adjustable range is narrow, the different cultivars textile sizing is required have different beam winding tension force to be difficult to satisfy, and control accuracy is not high, and the manufacturing maintenance is also very difficult.To the control of Sizing machines squeezing roller pressure, homemade GA331 type Sizing machines is a manual adjustments, and external new type sizing machine is to regulate with the mode of air pressure or oil pressure.These methods can not or can not realize well that all the squeezing roller pressure and the speed of a motor vehicle have the automatic control of one-to-one relationship, make the warp sizing rate be difficult to guarantee, have a strong impact on the weaving performance of warp thread.During warp sizing sizing stable speed operation's automatic control is affected automatic control to sizing elongation and squeezing roller pressure.Both at home and abroad Sizing machines adopts the alternating current motor transmission more, and the speed of a motor vehicle changes with power network fluctuation, be difficult to guarantee the stable speed operation in the sizing process, also has to adopt the d.c. motor transmission, and control accuracy is not high yet, and antijamming capability is all very low, also is subjected to the influence of load variations.In these cases, the Grade A storage rate of cloth machine is low, end breakage rate during platform, pulls branch, substandard cloth rate height, can not guarantee the weave quality of fabric.

Purpose of the present invention is exactly to solve Sizing machines the problems referred to above in sizing process, according to different fabric varieties and different technological requirements, sizing is extended high-precision being controlled in the optimum range, making squeezing roller pressure automatically follow the speed of a motor vehicle changes, the warp sizing rate is remained in the optimum range, to reduce warp thread in starching with the broken end when weaving, improve Sizing machines and cloth machine productivity ratio, raising starching and fabric knitting output.

The method according to this invention may further comprise the steps:

At squeezing roller to dragging between the pick-up roll, by technology and fabric variety requirement, by toggle switch or potentiometer, in advance to sizing elongation a reference value or tension force a reference value, detect sizing elongation actual value or tension force actual value by checkout gear, in elongation adjuster or tension regulator, compare, by the elongation automatic control system, turning to and rotating speed of control elongation automatic motor, regulate beam of a loom drive motor magnetic flux and armature supply I thereof simultaneously, the long-pending of I changed with the beam winding diameter is consistent, the elongation in this district is controlled in the optimum range automatically.Set up the squeezing roller pressure robot control system(RCS), the vehicle speed value that detects by the vehicle speed value of technological requirement or by tachometer generator is as a reference value (set-point) of squeezing roller pressure, record the squeezing roller pressure actual value by the squeezing roller position detection component, in the squeezing roller position control, compare, by the squeezing roller pressure robot control system(RCS), turning to and rotating speed of control squeezing roller pressure control motor, make the variation of squeezing roller pressure remain on the corresponding value of the speed of a motor vehicle on, the stable speed operation is sinusoidal wave circuits for triggering with selecting synchronizing voltage for use with high-precision limit axle speed ring control Sizing machines, makes the speed of a motor vehicle not be subjected to the influence of voltage pulsation.

The device of implementing said method comprises automatic control cabinet, checkout gear, elongation automatic motor, beam of a loom drive motor, limit through-drive motor, squeezing roller pressure automatic motor, and these motors link to each other with planetary gearing, beam of a loom, limit axle, the squeezing roller of Sizing machines respectively by mechanical reduction gear.Automatic control cabinet is connected with every motor by cable, and checkout gear is connected with automatic control cabinet by cable.

Elongation robot control system(RCS) device, beam winding constant tension robot control system(RCS) device, squeezing roller pressure robot control system(RCS) device, speed of a motor vehicle stable speed operation's robot control system(RCS) device are housed in the described automatic control cabinet.

Described checkout gear comprises, sizing roller and drag on the pick-up roll axle rotating pulse generator of installing respectively, the tension pick-up that install at tonometry roll shaft two ends drags the tachometer generator of installing on pick-up roll, limit through-drive motor, the beam of a loom drive motor axle, and the squeezing roller position detection component.

Described mechanical reduction gear is reductor and gear.

Provide three kinds of methods and device thereof according to the of the present invention sizing elongation is controlled automatically:

(1) sizing roller and drag pick-up roll the axle on respectively adorn a rotating pulse generator, these two pulses that rotating pulse generator sent are represented sizing roller respectively and are dragged the rotating speed of pick-up roll, and ask in the poor card in numeral and to ask poor, with this difference as the elongation actual value.Ask in the poor card in numeral with the elongation actual value by the elongation a reference value that is installed in the toggle switch input in the automatic control cabinet and to compare, by elongation robot control system(RCS) and elongation automatic motor rotating judging circuit, the rotating speed of elongation automatic motor is done just to change fast or at a slow speed with the size variation of this difference when extending a reference value greater than the elongation actual value, when this difference was approaching or equal, this motor stopped operating; When extending a reference value less than the elongation actual value, the rotating speed of this motor is done fast or counter-rotating at a slow speed with the size variation of this difference, controls the rotating speed that drags pick-up roll with this, to sizing elongation realization control automatically.

(2) the tension force a reference value is replaced the elongation a reference value, by the detected tension force actual value of the tension pick-up at tonometry roll shaft two ends as the elongation actual value, the same with above-mentioned (one) operation principle, when tension force a reference value during greater than (or less than) tension force actual value, the elongation automatic motor just changes (or counter-rotating), thereby make the rotating speed rising (or reduction) of dragging pick-up roll, automatically regulate the size of this district's tension force, when the tension force actual value increases (or reducing) to a reference value, the elongation automatic motor stops operating, and with this sizing is extended and controls automatically.

(3) tachometer generator is installed dragging on the axle of pick-up roll, the rotating speed of sizing roller records by the limit coaxial tachometer generator of through-drive motor, and the speed of sizing roller is deducted the difference of the speed of dragging pick-up roll as the elongation actual value.Give the elongation a reference value in advance by the requirement of technology kind.The same with the operation principle of above-mentioned (), when elongation a reference value during greater than (or less than) elongation actual value, the elongation automatic motor makes and drags pick-up roll raising speed or reduction of speed with regard to forward or reverse.When extending the actual value increase or be reduced near the elongation a reference value, the elongation automatic motor stops operating, and drags pick-up roll just to remain on the speed in this moment, with this Sizing machines sizing is extended and controls automatically.In addition, the automatic control of sizing elongation is also carried out constant automatic control to beam winding (dragging between pick-up roll and the beam of a loom) tension force.It is realized by following principle: limit through-drive motor and beam of a loom drive motor are by common Velocity Reference value speed governing, limit through-drive motor and elongation automatic motor drag pick-up roll by limit through-drive, beam of a loom drive motor transmission beam of a loom, they are unified into an integral body by the tension force that warp thread forms, according to its running status, derive tension force computing formula: F=K (I φ)/(D), wherein: φ is a beam of a loom drive motor magnetic flux, I is a beam of a loom drive motor armature supply, and D is the beam winding diameter.From following formula as seen, when D changes,, I is changed with D is consistent with the long-pending of φ, therefore in the beam winding process, I and φ be regulated simultaneously if want tension force F constant.Wherein the adjusting of magnetic flux φ is that magnetic flux is replaced with field supply, and in the overall process of beam winding, field supply passes through adder, trigger, and ghyristor circuit is formed the magnetic field regulating loop, is increased to full magnetic (rated value) gradually from the minimum that weak magnetic allowed.Armature supply is regulated and to be: when warp rolls on beam of a loom and after forming tension force, the beam of a loom motor speed descends, make in its robot control system(RCS) the beam of a loom speed regulator saturated, beam of a loom motor mechanical property from hard to soft, but also can be by regulating the slope that potentiometer on its electric current loop Current Negative Three-Point Capacitance card changes this mechanical property, make warp thread after the starching in the beam winding process, the decline of motor rotary speed is consistent with the increase of coil diameter.Warp thread drags the pick-up roll linear velocity to equal beam winding linear velocity, i.e. n when constant tension winding ₁D ₁=nD, wherein n ₁, D ₁Be respectively the rotating speed and the coil diameter of dragging pick-up roll, n, D are respectively the volume speed and the coil diameter of beam of a loom, get D=(n by formula ₁D ₁)/(n), wherein D ₁Be constant, calculate D by a divider, by a divider and multiplier F=K (I φ)/(D) is calculated again and with the F that calculates actual value as tension link, give the tension force a reference value in advance according to different process, the desired differential tension of different cultivars, and set up to open a upright close-loop automatic adjustment by tension regulator, make beam winding constant tension control accuracy higher and beam of a loom motor magnetic field automatically adjusted.

Its squeezing degree of squeezing roller pressure size decision to sizing, and squeeze degree direct influence to the rate of sizing, it is the key factor that influences weaving performance.When warp sizing, constant as squeezing roller pressure, faster when the speed of a motor vehicle, sizing is short at mud jacking district elapsed time, and the squeezing roller speed of gyration is fast, and pressure is little, the squeezing degree of squeezing roller more a little less than, press the slurries that go few, the adsorbance of slurry also the more, so the rate of sizing is higher; When car was slow, sizing was longer at mud jacking district elapsed time, and the squeezing roller speed of gyration is slow, and pressure is big, and the squeezing degree is strong, pressed the slurries that go many, and the slurries adsorbance is few, so the rate of sizing is just on the low side.In order to obtain the suitable rate of sizing, make it not influenced by the speed of a motor vehicle, must make squeezing roller pressure follow the speed of a motor vehicle and change automatically, i.e. speed of a motor vehicle height, then squeezing roller pressure is big, and the speed of a motor vehicle is low, and then squeezing roller pressure is little.According to this requirement, the present invention is on the basis of existing Sizing machines to the automatic control of squeezing roller pressure, increasing squeezing roller position detection component and squeezing roller pressure and control motor and automatic control system thereof automatically, is a reference value (set-point) of automatic control system by the vehicle speed value of manufacturing technique requirent or by the vehicle speed value that tachometer generator detects.When Sizing machines raising speed or reduction of speed, this a reference value just has one and the corresponding determined value of speed of a motor vehicle this moment, by the squeezing roller position control, trigger, voltage regulator, differentiate the positive and negative rotation circuit of squeezing roller pressure automatic motor, the robot control system(RCS) that ghyristor circuit is formed, the forward or reverse of control squeezing roller pressure automatic motor, the squeezing roller pressure actual value that the squeezing roller position detection component detected is followed the rotation of this motor and is changed, when it during near a reference value, the squeezing roller pressure automatic motor just stops operating, make squeezing roller pressure remain on the corresponding value of the speed of a motor vehicle on.

The present invention is guaranteed by high-precision limit axle speed ring Sizing machines stable speed operation's automatic control, has added ring and voltage inter-loop in the electric current adjusting in the automatic control loop of limit axle speed.Selecting synchronizing voltage for use is sinusoidal wave circuits for triggering, and when line voltage raise or reduce, trigger impulse moved after automatically or moves forward, and makes the controllable silicon output voltage be tending towards constant, so limit through-drive motor speed is tending towards constant, has realized that promptly the sizing speed of service is constant.

Below in conjunction with drawings and Examples the present invention is described:

Fig. 1 is the elongation of Sizing machines sizing, squeezing roller pressure control structure schematic diagram.

Fig. 2 is the elongation of Sizing machines sizing, squeezing roller pressure automatic control circuit systematic schematic diagram.

Fig. 3 is the constant and sizing stable speed operation automatic control circuit principle calcspar of weaving-reel of starching-yarn machine winding tension.

As shown in Figure 1:

1,2: the photoelectricity rotating pulse generator

3: sizing roller

4: limit through-drive motor

5: the beam of a loom drive motor

6: drag pick-up roll

7: the elongation automatic motor

8: the squeezing roller pressure automatic motor

9,10,11: tachometer generator

12: the squeezing roller position detection component

13: squeezing roller

14: jockey pulley

15: tension pick-up

16: automatic control cabinet

17: beam of a loom

18,19: reductor

20: worm screw

21: worm gear

22: horizontal gear

23: ratch

24,25,33,34,37,38,40: gear

26: planetary gearing shell wheel

27,30: sun gear

28,29: planetary gear

31,32: angular wheel

35: by movable sprocket

36: drive sprocket

39: spring

41,42: the limit axle

43,44: limit switch

Automatic control cabinet 16 is installed near the Sizing machines headstock, sizing roller 3 and drag on the axle of pick-up roll 6 photoelectricity rotating pulse generator 1 and 2 are housed respectively, and they are connected with automatic control cabinet 16 by cable.Limit through-drive motor 4, beam of a loom drive motor 5, drag pick-up roll 6 the axle on tachometer generator 9,10,11 is housed respectively, they all are connected with automatic control cabinet 16 by cable.It above the sizing roller 3 squeezing roller 13, there is spring 39 at the two ends that squeezing roller is 13, one end of elevating lever 23 links to each other with spring 39, the other end at elevating lever is equipped with gear 24, gear 24 is meshed with gear 25, the limit switch 43,44 of squeezing roller position detection component 12 and control squeezing roller pressure automatic motor 8 forward and backward extreme positions is installed on the axle of gear 25, position detection component 12, squeezing roller pressure automatic motor 8 all links to each other with automatic control cabinet 16 by cable with limit switch 43,44.Elevating lever 23 is meshed with horizontal gear 22, and worm gear 21 is coaxial with horizontal gear and be meshed with worm screw 20, on the axle of worm screw 20 the squeezing roller pressure automatic motor is installed.Beam of a loom drive motor 5 is installed on the power shaft of reductor 18, gear 34 is installed on the output shaft of reductor, it is meshed with gear 33, and gear 33 is installed on the axle of beam of a loom 17 1 ends.On 4 in the limit through-drive motor gear 38 is housed, gear 38 is meshed with gear 37, with the coaxial drive sprocket 36 of gear 37 by chain drive be installed on the limit axle 41 by movable sprocket 35.Automatic control cabinet 16 is connected with limit through-drive motor 4 with beam of a loom drive motor 5 by cable.Elongation control motor 7 automatically takes turns 26 by the shell of reductor 19 and gear 40 transmission planetary gearings, the centre wheel of planetary gearing (sun gear) 27 is fixed on the limit axle 41, be meshed with the planetary gear 28 in the casing, and being fixed on sun gear 30 on the limit axle 42 by 29 transmissions of coaxial planetary gear, angular wheel 31 is fixed on the limit axle 42 and is meshed with angular wheel 32 on being fixed on the axle that drags pick-up roll 6.The two ends that the tonometry roller is 14 are equipped with tension pick-up 15.

As shown in Figure 2, DD is that numeral is asked poor card, D is a toggle switch, D/A is the D/A converter card, K is the voltage detecting that operational amplifier F5 composition is housed on switch, the XT card, the voltage inter-loop that voltage regulator F2 is constituted, F1 is for the elongation adjuster and constitute elongation by it and automatically regulate outer shroud (when the automatic control squeezing roller pressure, this figure F1 is the squeezing roller position control, and constitute squeezing roller pressure with its control outer shroud automatically); BG1, BG2, F4, relay 1J, 2J constitute the decision circuitry of positive and negative rotation of motor.Forming positive and negative rotation of motor delay circuit, unijunction transistor circuits for triggering, ghyristor circuit, XWK1 and XWK2 by time relay sj 1, SJ2, contactor ZC, FC is limit switch.Positive and negative rotation of motor decision circuitry and delay circuit also can use electric capacity, resistance, transistor, operational amplifier to constitute, trigger can adopt the circuits for triggering of other types, ghyristor circuit can adopt single-phase bridge, single-phase full wave circuit, three-phase semiwave can also be adopted, even three-phase bridge rectifier circuit can also be adopted.This figure circuit constitutes elongation automatic control system device and squeezing roller pressure automatic control system device, and is installed in the automatic control cabinet 16.

As shown in Figure 3; BR is a photoelectricity input card; XZ-1; XZ-2 is the signal synthesis card; GJ is to the definite integral card; ST-1; ST-2 is the speed regulator card, CS-1; CS-2 is feedback and the overspeed protection card of testing the speed, LT-1; LT-2 is the current regulator card; CL-1; CL-2 is current feedback and overcurrent protection card; YT-1; YT-2 is the voltage regulator card, CY-1; CY-2 is the voltage detecting card, SR-1; SR-2 is the input stage card; CF1-5 is the trigger card; YK-1; YK-2 is operation control card, and ZB is the integrated protection card, and BJ is the alarm unit card; ZT is the tension regulator card; XF is the limiter card, and RD is fast molten warning card, and CQ-1 is the multiplier card; CQ-2; TT1 is a divider, and CQ-3 is a divider.YT-1, CY-1, SR-1, CF-1, CF-2, SCR1, limit through-drive motor 4 is formed the automatic adjustable ring of limit shaft voltage, YT-2, CY-2, SR-2, CF-3, CF-4, SCR2, beam of a loom drive motor 5 is formed the automatic adjustable ring of beam of a loom voltage, shaft voltage automatic adjustable ring in limit adds LT-1, CL-1 forms the automatic adjustable ring of limit shaft current, the automatic adjustable ring of beam of a loom voltage adds LT-2, CL-2 forms the automatic adjustable ring of beam of a loom electric current, shaft current automatic adjustable ring in limit adds ST-1, CS-1 has formed the automatic adjustable ring of limit axle speed, and the automatic adjustable ring of beam of a loom electric current adds ST-2, CS-2 has formed the automatic adjustable ring of beam of a loom speed.Tension regulator ZT, limiter XF, beam of a loom speed regulator ST-2, current regulator LT-2, current feedback and overcurrent protection CL-2, voltage regulator YT-2, voltage detecting CY-2, input stage SR-2, trigger CF3, CF4; controllable silicon SCR 2, beam of a loom drive motor 5 is formed the automatic adjustable ring of tension force.Adder TT2 trigger CF-5, controllable silicon SCR 3 is formed the field supply adjustable ring.This figure circuit constitutes beam winding constant tension automatic control system device and the sizing stable speed operation automatic control system device in the automatic control cabinet 16.

During the Sizing machines operation, photoelectricity rotating pulse generator 1 and 2 pulse numbers that sent are represented sizing roller 3 respectively and are dragged the revolution of pick-up roll 6.Ask poor card DD to ask poor (see figure 2) by the numeral that is contained in the switch board 16 pulse number of photoelectricity rotating pulse generator 1 and 2, this difference is the elongation actual value.Also import according to production technology and the desired elongation conduct of fabric variety elongation a reference value by the toggle switch D in the switch board 16, this elongation a reference value is asked among the poor card DD in numeral with the elongation actual value and is asked poor again, its difference inputs to the input (No. 5 end of XT card) of elongation adjuster F1 through D/A converter D/A and K switch, F1 exports to voltage regulator F2, when extending a reference value greater than the elongation actual value, F1 is output as negative, F2 just is output as, transistor BG1 conducting, relay 1J gets, its normal opened contact closure, normally closed contact disconnects, and the output of voltage regulator F2 is through 1J normal opened contact 1J ₁Control unijunction transistor trigger, the pulse that the unijunction transistor trigger sends diverse location according to the size of control signal, controllable silicon SCR 4 is just exported voltages having different magnitude; Because of relay 1J electric, its normal opened contact 1J ₂Closed, time relay sj 1 timing closing, contactor ZC gets, it often opens main contact ZC1, ZC2 closure, elongation automatic motor 7 is just changeing, and through reductor 19, gear 40 transmission planetary gearings, makes sun gear 30 raising speeds that are fixed on limit axle 42, make to drag by angular wheel 31,32 and draw 6 raising speeds, so the elongation actual value increases.When extending actual value near a reference value, transistor BG1 ends, the 1J dead electricity, its normal opened contact is opened, the normally closed contact closure, and the unijunction transistor trigger does not have control signal, controllable silicon no-output voltage, and contactor ZC dead electricity, it is opened that it often opens main contact ZC1, ZC2, so the elongation automatic motor stops operating.Otherwise when extending actual value greater than a reference value, F1 just is output as, F2 is output as negative, transistor BG1 ends, opposite sign device F4 just is output as, transistor BG2 conducting, relay 2J gets electric, its normal opened contact closure, time relay sj 2 timing closings, contactor FC gets, it often opens main contact FC1, the FC2 closure, the output of opposite sign device F4 makes the unijunction transistor trigger send the pulse of diverse location simultaneously, controllable silicon SCR 4 output voltages having different magnitude, elongation automatic motor 7 is with different speed counter-rotatings, through reductor 19, gear 40(reductor 19, gear 40 can replace with sprocket wheel or belt pulley) the shell wheel 26 of transmission planetary gearing, make sun gear 30 reductions of speed that are fixed on limit axle 42, by angular wheel 31,32 make and drag the pick-up roll reduction of speed, so the elongation actual value reduces, when the approaching elongation of elongation actual value a reference value, transistor BG2 ends, relay 2J discharges, its normal opened contact 2J ₁Open time relay sj ₂Dead electricity, contactor FC discharges, and it is often opened main contact FC1, FC2 and opens, and elongation automatic motor 7 just stops operating.Like this, elongation automatic motor 7 has just been controlled sizing roller 3 and has been dragged the revolution difference of pick-up roll 6, thereby has controlled the sizing elongation of Sizing machines.Wherein, the photoelectricity rotating pulse generator can replace by electricity consumption magnetic rotation impulse generator.In addition, replace the elongation a reference value also can in advance the tension force a reference value, and be defeated by tension regulator F1(at this moment for tension regulator) input (No. 5 ends of XT card), the measured tension force of tension pick-up 15 that will be by being installed in jockey pulley 14 two ends is as the tension force actual value, and be defeated by another input No. 4, XT card (end) of tension regulator, with preceding to chat implementation process identical, when the tension force a reference value during greater than the tension force actual value (see figure 2) F1 be output as negative, F2 just is output as, transistor BG1 conducting, relay 1J gets electric, its normal opened contact closure, normally closed contact is opened, and the output of voltage regulator F2 is through 1J normal opened contact 1J ₁Control unijunction transistor trigger, this trigger sends the diverse location pulse according to the size of control signal, makes controllable silicon SCR ₄The output voltages having different magnitude; Because of relay 1J electric, its normal opened contact 1J ₂Closed, time relay sj ₁Timing closing, contactor ZC gets, it often opens main contact ZC1, the ZC2 closure, elongation automatic motor 7 is just changeing, through reductor 19, the shell wheel 26 of gear 40 transmission planetary gearings, make sun gear 30 raising speeds that are fixed on limit axle 42 by planetary gearing, by angular wheel 31,32 make and drag pick-up roll 6 raising speeds, then the tension force actual value increase, when tension force actual value during near the tension force a reference value, transistor BG1 ends, relay 1J dead electricity, its normal opened contact is opened, contactor ZC dead electricity, it often opens main contact ZC1, ZC2 opens, and elongation automatic motor 7 stops operating.Otherwise when tension force actual value during greater than the tension force a reference value, F1 just is being output as, F2 is output as negative, transistor BG1 ends, and F4 just is output as, transistor BG2 conducting, relay 2J gets, its normal opened contact closure, time relay sj 2 timing closings, contactor FC gets, it often opens main contact FC1, FC2 closure, and the output of F4 is through the normally closed contact 1J of 1J simultaneously ₄Control unijunction transistor trigger, the pulse that this trigger sends diverse location according to the control signal size makes controllable silicon SCR ₄The output voltages having different magnitude, elongation automatic motor 7 reverses with friction speed, shell wheel 26 through reductor 19, gear 40 transmission planetary gearings, make sun gear 30 reductions of speed that are fixed on limit axle 42, make by angular wheel 31,32 and to drag the pick-up roll reduction of speed, the tension force actual value reduces, when being reduced near the tension force benchmark, transistor BG2 ends, relay 2J dead electricity, its normal opened contact is opened, the time relay and the equal dead electricity of SJ2 contactor FC, contactor FC often leaves main contact FC1, FC2 and opens, and elongation automatic motor 7 stops operating.Elongation automatic motor 7 has just been controlled sizing roller 3 to dragging starching district between the pick-up roll 6 like this, and the tension force in oven dry dividing sinker district has been controlled the sizing elongation equally.Can also on the axle of pick-up roll 6 a tachometer generator 11(be installed and see Fig. 1 dragging), the size of this tachometer generator voltage is corresponding with the rotating speed that drags pick-up roll 6, the rotating speed of the rotating speed of sizing roller 3 and limit axle 41, drive motor 4 is proportional, and its rotating speed can be by obtaining with the coaxial tachometer generator 9 of limit through-drive motor 4.The difference of rotating speed that the rotating speed that drags pick-up roll 6 is deducted sizing roller 3 is as extending actual value, with technology according to the desired elongation of fabric variety as the elongation a reference value, when extending a reference value greater than the elongation actual value, effect by automatic control circuit, elongation automatic motor 7 is just changeing, through reductor 19, gear 40 transmission planetary gearings, make limit axle 42, drag pick-up roll 6 raising speeds, so the elongation actual value increases, when increasing near the elongation benchmark, the same with above-mentioned reason, elongation automatic motor 7 stops operating.Otherwise, when extending a reference value less than the elongation actual value, identical with above-mentioned reason, 7 counter-rotatings of elongation automatic motor through reductor 19, gear 40 transmission planetary gearings, make limit axle 42 reductions of speed, drag pick-up roll 6 reductions of speed, so the elongation actual value reduces, when being reduced near the elongation a reference value, elongation automatic motor 7 stops operating.So just control sizing roller 3 and dragged the speed discrepancy of pick-up roll 6, thereby controlled the elongation of sizing.Control to the sizing elongation also must be carried out constant automatic control to beam winding tension force; Sizing machines is in service; being tested the speed by the limit axle, limit axle speed actual value is provided is the dividend (see figure 3) of divider CQ-3 for feedback and overspeed protection card CS-1; by test the speed feedback and the beam of a loom speed actual value that provides of overspeed protection card CS-2 of beam of a loom is the divisor of divider CQ-3; the output of divider CQ-3 is used for coil diameter and shows, magnetic field is regulated automatically and tension force calculates.Adder TT2 has two inputs in the automatic adjustment circuit of magnetic field, and the 1# input provides the weak pairing base value of magnetic, and by the minimum of the weak magnetic of its decision, this value is constant all the time in the beam winding process.The 2# input is the coil diameter decision that calculated by CQ-3, changes with the variation of coil diameter, and it is started from scratch and increases gradually in the process of full volume by blank coil at beam of a loom, is maximum when completely rolling up, and at this moment the excitation of beam of a loom drive motor 5 is a rated value.When warp rolls on beam of a loom and after forming tension force, the mechanical property of beam of a loom drive motor 5 from hard to soft, when coil diameter increased, its armature supply and field supply all increased, rotating speed descends automatically.By regulating the potentiometer on armature supply feedback and the overcurrent protection card CL-2; can change the slope of mechanical property; make the decline of beam of a loom drive motor 5 rotating speeds in the beam winding process consistent, the coarse adjustment of Here it is beam winding tension force with the increase of coil diameter.In addition, less at tension force, the place that the beam winding motor is less, also fixing magnetic flux, when coil diameter changed, it is consistent that beam of a loom drive motor 5 armature supply I and coil diameter are changed, and realizes the coarse adjustment of winding tension equally.The long-pending dividend that the armature supply actual value that will be obtained by beam of a loom drive motor 5 current feedback and overcurrent protection card CL-2 multiplies each other with magnetic flux (replacing with field supply) in multiplier CQ-1 for the divider formed by multiplier CQ-2 and all-purpose controller TT1; and in this divider, be divided by with the coil diameter D that is calculated by divider CQ-3; obtain beam winding tension force; and with this actual value as tension regulator ZT; with various processes and the desired differential tension of different cultivars a reference value as tension regulator ZT; by potentiometer W this a reference value is inputed to tension regulator ZT; tension regulator export to limiter YT; limiter XF is output as a reference value (set-point) of beam of a loom current regulator LT-2; LT-2 is output as the set-point of beam of a loom voltage regulator YT-2; voltage regulator YT-2 exports to input stage SR-2; the output control trigger CF-3 of SR-2; CF-4 is according to the size of tension force; trigger CF-3; CF-4 just sends the pulse of diverse location; make controllable silicon SCR 2 send corresponding voltage; beam of a loom drive motor 5 obtains corresponding rotating speeds; this has just set up tension closed loop and has regulated automatically; make tension force obtain quantitative control by this closed loop; as long as tension force changes slightly, will make tension force get back to the tension force a reference value rapidly.

Automatic control by above revolution difference, speed discrepancy or tension force to starching district, oven dry dividing sinker district and to the automatic control of beam winding constant tension can be extended sizing high-precision being controlled in the needed optimum range.

The a reference value of squeezing roller position control (set-point) is provided by a reference value (set-point) or the actual value of limit axle speed regulator, and to input to position control F1(this moment F1 be position control) input (No. 5 ends of XT card) squeezing roller position actual value obtain by squeezing roller position detection component 12, and be defeated by another input No. 4, XT card (end) of position control, when the Sizing machines raising speed, the squeezing roller position collimation increases, the squeezing roller position actual value does not also change constantly at this, a reference value is greater than actual value, position control F1 is output as negative (see figure 2), voltage regulator F2 just is output as, transistor BG1 conducting, relay 1J gets, its normal opened contact closure, normally closed contact is opened, and the output of voltage regulator F2 is through limit switch XWK1, relay 1J normal opened contact 1J ₁Control unijunction transistor trigger, the pulse that this trigger sends diverse location according to the size of control signal, controllable silicon SCR 4 is according to the position output voltages having different magnitude of pulse; Relay 1J electric, its normal opened contact 1J ₂Closed, time relay sj 1 timing closing, contactor ZC gets, its normal opened contact ZC1, the ZC2 closure, squeezing roller pressure automatic motor 8 is just changeing, by worm screw 20, worm gear 21, horizontal gear 22, ratch 23, spring 39 makes the squeezing roller position do the variation of close sizing roller, the corresponding increase of squeezing roller pressure, the rotation of ratch 23 is rotated the gear 24 on it, gear 24 driven gears 25 rotate, gear 25 drives squeezing roller position detection component 12 and rotates, and the squeezing roller position actual value is detected, and the squeezing roller position actual value that is detected increases along with the rotation of ratch 23, when increasing near the squeezing roller position collimation, transistor BG1 ends, relay 1J dead electricity, and its normal opened contact is opened, time relay sj 1 and the equal dead electricity of contactor ZC, contactor ZC often leaves main contact and opens, and squeezing roller pressure automatic motor 8 stops operating, and a reference value (set-point) that squeezing roller pressure remains on the squeezing roller position control is on the corresponding value of the speed of a motor vehicle.When the Sizing machines reduction of speed, the squeezing roller position collimation reduces, and the squeezing roller position actual value does not also change constantly at this, so actual value is greater than a reference value, position control F1 just is output as, and voltage regulator F2 is output as negative, transistor BG1 ends, F4 just is output as, transistor BG2 conducting, and relay 2J gets, its normal opened contact closure, time relay sj 2 timing closings, contactor FC gets electric, and it often opens main contact FC1, FC2 closure; The output of F4 simultaneously is through limit switch XWK2, the normally closed contact 1J of relay 1J ₄Control unijunction transistor trigger, this trigger sends the pulse of diverse location according to the size of control signal, controllable silicon SCR 4 is according to the position output voltages having different magnitude of pulse, 8 counter-rotatings of squeezing roller pressure automatic motor, by worm screw 20, worm gear 21, horizontal gear 22, ratch 23, spring 39 makes squeezing roller 13 positions leave the variation of sizing roller 3, squeezing roller pressure is corresponding to be reduced, same squeezing roller position detection component 12 rotates along with the rotation of ratch 23, the squeezing roller position actual value that detected this moment reduces gradually, when being reduced near the squeezing roller position collimation, transistor BG2 ends, relay 2J dead electricity, its normal opened contact 2J ₂Open, time relay sj 2 and the equal dead electricity of contactor FC, contactor FC often leaves main contact and opens, and squeezing roller pressure automatic motor 8 stops operating, and a reference value (set-point) that squeezing roller pressure remains on the squeezing roller position control is on the corresponding value of the speed of a motor vehicle.If departed from this value because of various interference make squeezing roller pressure, because of a reference value (set-point) does not become, squeezing roller pressure automatic motor 8 will be done corresponding the rotation, and squeezing roller pressure is got back on this value automatically.

The a reference value of the Sizing machines speed of a motor vehicle (set-point) is isolated card GR input by photoelectricity.When making the Sizing machines speed of a motor vehicle descend (or rising) because of various interference; limit axle speed is regulated the speed actual value that testing the speed in the outer shroud fed back and overspeed protection card CS-1 is provided and is reduced (or increase); that the input of limit axle speed regulator ST-1 occurs is positive (or negative) deviation voltage; its output increases (or reducing); this input value is the set-point of ring during the limit shaft current is regulated; the current actual value that this moment, limit shaft current feedback and overcurrent protection card CL-1 provided does not become; therefore at the input of limit shaft current adjuster positive (or negative) deviation voltage has appearred also; output increases or reduces; and this value is the set-point that the limit shaft voltage is regulated interior ring; voltage detecting card CY-1 does not become (part of voltage change is eliminated by the automatic adjusting of voltage inter-loop) for the voltage actual value that voltage inter-loop provided; the output of voltage regulator increases (or reducing); the input of input stage SR-1; output rising (or reduction); trigger CF-1; the pulse position that CF-2 produced forward (or backward) move; the commutating voltage rising (or reduction) of Group of Silicon Controlled Rectifier SCR1; the rotating speed of limit through-drive motor 4 gos up (or reduction), up to steady operation again on the speed that production technology is determined.When line voltage raise (or reduction), synchronizing voltage made the commutating voltage of Group of Silicon Controlled Rectifier SCR1 be tending towards constant for the sinusoidal wave trigger impulse that circuits for triggering produced moves (or reach) after automatically.

After implementing the present invention, sizing percentage elongation, the rate of sizing, respectively distinguish tension force, squeezing roller pressure and just can automatically be controlled at optimum state, warp sizing machine is according to technological requirement and the stable speed operation. Like this, warp thread brute force, wearability and smoothness after the starching just strengthens widely, and possesses elasticity, opening is clear when loom is weaved, can bear its opening, throw a spear, beat up, warp thread and combine, the repeatedly friction between the reed, menopause tablet etc., the repeatedly friction that warp thread is mutual, and the impact that is added in tension force on the warp thread, impulsive force etc. Weaving performance improves greatly, and end breakage rate reduces more than 80 percent, and fabric face is smooth, and appearance effect is good, has improved style and the feel of fabric. Improved the Quality and yield of textile.

Claims

1, a kind of method of controlling the elongation of Sizing machines sizing, squeezing roller pressure is characterized in that following step:

A, by production technology and fabric variety requirement, by toggle switch or potentiometer, in advance to sizing elongation a reference value or tension force a reference value, detect sizing elongation actual value or tension force actual value by checkout gear, in elongation adjuster or tension regulator, compare, by the elongation automatic control system, turning to and rotating speed of automatic motor extended in control.

B, the vehicle speed value that detects by the vehicle speed value of manufacturing technique requirent or by tachometer generator are as a reference value (set-point) of squeezing roller pressure, record the squeezing roller pressure actual value by the squeezing roller position detection component, in the squeezing roller position control, compare, by the squeezing roller pressure robot control system(RCS), control turning to and rotating speed of squeezing roller pressure automatic motor.

2, method according to claim 1, it is characterized in that dragging pick-up roll by limit through-drive by limit through-drive motor and elongation automatic motor, by beam of a loom drive motor transmission beam of a loom, limit through-drive motor and beam of a loom drive motor are by common Velocity Reference value speed governing, and the tension force that forms by warp thread is unified into an integral body, F=K (I φ)/(D) by formula, here F is a beam winding tension force, φ is a beam of a loom drive motor magnetic flux, I is a beam of a loom drive motor armature supply, and D is the beam winding diameter, regulates I and φ, I is changed with D is consistent with the long-pending of φ, and the decline of beam of a loom drive motor rotating speed is consistent with the increase of coil diameter.

3, according to claim 1 or 2 described methods, it is characterized in that detecting sizing roller and dragging the pick-up roll revolution by rotating pulse generator, to ask in the poor card in numeral to compare, its difference is the elongation actual value; By production technology and fabric variety requirement, extend a reference value to sizing in advance by toggle switch, numeral ask in the poor card with the elongation actual value relatively, be defeated by the elongation adjuster through after the digital to analog conversion, by elongation robot control system(RCS) and elongation automatic motor rotating judging circuit, when the elongation a reference value was greater than or less than the elongation actual value, the rotation of elongation automatic motor makes dragged pick-up roll raising speed or reduction of speed, and the elongation actual value increases or reduces; When the approaching elongation of elongation actual value a reference value, the elongation automatic motor stops operating, and drags the revolution of pick-up roll to remain on the value corresponding with extending a reference value.

4, according to claim 1 or 2 described methods, it is characterized in that by production technology and fabric variety requirement, give the sizing tension a reference value in advance by potentiometer, the tension force actual value that obtains with sensor in the elongation adjuster compares, by elongation robot control system(RCS) and elongation automatic motor rotating judging circuit, when the tension force a reference value was greater than or less than the tension force actual value, the rotation of elongation automatic motor makes dragged pick-up roll raising speed or reduction of speed, and the tension force actual value increases or reduces; When tension force actual value during near the tension force a reference value, the elongation automatic motor stops operating, and drags the rotating speed of pick-up roll to remain on the value corresponding with the tension force a reference value.

5, according to claim 1 or 2 described methods, it is characterized in that detecting the rotating speed that drags pick-up roll and sizing roller by tachometer generator, to drag the absolute value of pick-up roll rotating speed and sizing roller speed discrepancy as the elongation actual value, by production technology and fabric variety requirement, extend a reference value to sizing in advance by potentiometer, in the elongation adjuster, compare, by elongation robot control system(RCS) and elongation automatic motor rotating judging circuit, when the elongation a reference value is greater than or less than the elongation actual value, the rotation of elongation automatic motor makes drags pick-up roll raising speed or reduction of speed, the elongation actual value increases or reduces, when the approaching elongation of elongation actual value a reference value, the elongation automatic motor stops operating, and drags the rotating speed of pick-up roll to remain on the value corresponding with extending a reference value.

6, be used for controlling automatically the sizing elongation, the device of squeezing roller pressure comprises: squeezing roller 13 and sizing roller 3, drag pick-up roll 6, beam of a loom 17, limit axle 41 and 42, jockey pulley 14 and by shell wheel 26, centre wheel (sun gear) 27 and 30, planetary gear 28 and 29, form planetary gearing, it is characterized in that having automatic control cabinet 16, elongation automatic motor 7, beam of a loom drive motor 5, limit through-drive motor 4, squeezing roller pressure automatic motor 8, these motors pass through gear, reductor respectively with the planetary gearing of Sizing machines, beam of a loom 17, limit axle 41, squeezing roller 13 connects; Automatic control cabinet 16 is connected with these motors by cable; Rotating pulse generator 1 and 2, tension pick-up 15, tachometer generator 9 and 10 and 11, squeezing roller position detection component 12, these checkout gears are connected with automatic control cabinet 16 by cable.

7, automaton according to claim 6, it is characterized in that rotating pulse generator 1 and 2 is installed in sizing roller 3 respectively and drags on the axle of pick-up roll 6, tension pick-up 15 is installed in the two ends of 14 on tonometry roller, tachometer generator 9 and 10 and 11 is installed in limit through-drive motor 4, beam of a loom drive motor 5 respectively and drags on the axle of pick-up roll 6, and squeezing roller position detection component 12 is installed on the axle of gear 25.

8, automaton according to claim 6, it is characterized in that having in the automatic control cabinet 16 elongation automatic control system device, beam winding constant tension automatic control system device, squeezing roller pressure automatic control system device, speed of a motor vehicle stable speed operation's automatic control system device.

9, according to claim 6 or 7 or 8 described automatic control system devices, it is characterized in that the position of squeezing roller pressure automatic motor 7 by worm screw 20, worm gear 21, horizontal gear 22, elevating lever 23, spring 39 adjusting squeezing rollers 13, squeezing roller 13 to sizing roller 3 near the time, spring 39 is compressed, to squeezing roller 13 pressurizations, when squeezing roller 13 left sizing roller 3, spring 39 opened, and squeezing roller 13 pressure reduce.

10, automaton according to claim 8, it is characterized in that extending the automatic control system device by elongation adjuster F1, voltage regulator F2, opposite sign device F4, unijunction transistor trigger, controllable silicon SCR 4 major loops, closed loop is regulated in the elongation that elongation automatic motor 7 is set up automatically; Elongation automatic motor rotating judging circuit and time relay ST1, ST2 that transistor BG1 and BG2, opposite sign device F4, relay 1J and 2J form, and the time-delay and the power amplification circuit of contactor ZC and FC composition.

11, automaton according to claim 8 is characterized in that squeezing roller pressure that squeezing roller pressure automatic control system device is set up by squeezing roller position control F1, voltage regulator F2, opposite sign device F4, single-crystal mass trigger, controllable silicon SCR 4 major loops and squeezing roller pressure automatic motor 8 regulates the squeezing roller pressure automatic motor rotating judging circuit that closed loop and transistor BG1, BG2, opposite sign device F4, relay 1J, 2J form automatically; And the time-delay of time relay sj 1, SJ2 and contactor ZC, FC composition and control amplifying circuit, the squeezing roller pressure automatic motor 8 rotating extreme position holding circuits that limit switch XWK1, XWK2 form.

12; automaton according to claim 8; it is characterized in that beam winding constant tension automatic control system device is by multiplier CQ-1; multiplier CQ-2; the tension force counting circuit that divider that all-purpose controller TT1 forms and divider CQ-3 form; by voltage regulator card YT-2; voltage detecting card CY-2; input stage card SR-2; trigger card CF-3 and CF-4; controllable silicon SCR 2; beam of a loom drive motor 5 is formed voltage and is regulated interior ring automatically; by current regulator LT-2 card; ring during ring composition electric current was regulated automatically in current feedback and overcurrent protection CL-2 card and voltage were regulated automatically is by the tension force counting circuit; tension regulator ZT; limiter XF; speed regulator ST-2; current inner loop is formed tension force and is regulated closed loop automatically.

13, automaton according to claim 8, it is characterized in that speed of a motor vehicle stable speed operation automatic control system device by voltage regulator YT-1 card, voltage detecting CY-1 card, input stage SR-1 card, trigger CF-1 and CF-2 card, controllable silicon SCR 1, limit through-drive motor 4 is formed ring in the voltage-regulation; Forming electric current by current regulator LT-1 card, current feedback and overcurrent protection card CL-1 and voltage inter-loop encircles in the adjusting automatically; Form speed by ring in speed regulator ST-1 card, the feedback that tests the speed and overspeed protection card CS-1 and the automatic adjusting of electric current and regulate outer shroud automatically.