CN102605518B - Warp feeding method and warp feeding device in loom - Google Patents
Warp feeding method and warp feeding device in loom Download PDFInfo
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- CN102605518B CN102605518B CN201110412855.1A CN201110412855A CN102605518B CN 102605518 B CN102605518 B CN 102605518B CN 201110412855 A CN201110412855 A CN 201110412855A CN 102605518 B CN102605518 B CN 102605518B
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
- D03D51/002—Avoiding starting marks
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D49/00—Details or constructional features not specially adapted for looms of a particular type
- D03D49/04—Control of the tension in warp or cloth
- D03D49/06—Warp let-off mechanisms
- D03D49/10—Driving the warp beam to let the warp off
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D49/00—Details or constructional features not specially adapted for looms of a particular type
- D03D49/04—Control of the tension in warp or cloth
- D03D49/20—Take-up motions; Cloth beams
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
- D03D51/005—Independent drive motors
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- Textile Engineering (AREA)
- Looms (AREA)
Abstract
A warp feeding method in a loom in which a let-off device (5) and a take-up device (8) have a let-off motor (5c) and a take-up motor (8c) as driving sources, respectively, is provided. The let-off motor (5c) and the take-up motor (8c) are independent of a main driving motor of the loom. The method includes the steps of performing a warp feeding operation by driving the let-off motor (5c) and the take-up motor (8c) while the main driving motor is stopped; during the warp feeding operation, detecting a tension of a warp; comparing a warp tension value that is based on the detection with a previously set reference value of the tension of the warp; and if the warp tension value is not the reference value, performing tension control for returning the tension of the warp to the reference value in accordance with a previously set control mode in which the let-off motor (5c) and the take-up motor (8c) are control objects.
Description
Technical field
The present invention relates to warp yarn supplying when a kind of loom stops, particularly in warp yarn supplying operation, make the tension force of warp thread remain on the technology of wishing state.
Background technology
Generally, loom when weaving is (following by the let-off motion of warp thread, referred to as " let-off motion ") warp thread is sent, and it is (following by the batching apparatus of weaving cotton cloth, referred to as " batching apparatus ") batch weaving cotton cloth of being woven, but except manufacturing time, sometimes also to carry out the operation of transporting warp thread.Below, operation warp thread being delivered to let-off motion side is called makes loom " reversion ", and operation warp thread being delivered to batching apparatus side is called makes loom " rotating forward ".
Such as, there is a kind of operation: in the mode of the loom crawl reversion carried out when repairing weft insertion error etc., making to knit front position (warp thread) and turning back to let-off motion side only 1-2 root weft yarn amount.Except this operation, sometimes also can carry out following operation: drive let-off motion and batching apparatus, warp thread is transported to several 10cm or number m.(following, such operation to be called " warp yarn supplying (operation) ").
As the one in the operation of such warp yarn supplying, such as, what have a kind of loom returns defect operation, and the low fabric of weft count weaved by this loom, as curtain part in cord fabric fabric.Return defect operation to refer to, when the float that the middle discovery of weaving cotton cloth be woven is not allowed qualitatively, loom is reversed for carrying out repairing, make this float part turn back to the operation of knitting front position.
In the fabric that described weft count is low, because the maintenance of warp thread to weft yarn is more weak, therefore, need not carry out making the action of Warp opening just can extract weft yarn out from the part of weaving cotton cloth be woven along with the reversion of loom.Therefore, weave the loom of the lower fabric of weft count when carrying out back defect operation, in advance the weft yarn arriving float part is removed from part of weaving cotton cloth, afterwards, carry out following operation: only drive let-off motion and batching apparatus to rotate continuously towards reverse directions, warp thread is sent to let-off motion side, i.e. warp yarn supplying operation.In addition, returning in defect operation at common loom, while make loom crawl reversion limit make Warp opening by shedding motion, from weaving cotton cloth, part extracts weft yarn out, and this operation will be carried out repeatedly.
As other warp yarn supplying operation, there is such as following operation: during machine etc., only let-off motion and batching apparatus are rotated towards forward direction Continuous Drive, warp thread is sent to batching apparatus side continuously on loom.Like this, in warp yarn supplying operation, there is situation warp thread being sent to let-off motion side, and warp thread is sent to the situation of batching apparatus side.
Operate relevant prior art as to the warp yarn supplying of loom, have technology disclosed in a kind of patent document 1.When the prior art and upper machine, to transfer (warp yarn supplying operates) relevant towards being made into device side (batching apparatus side) for warp thread, drive the let-off motor independent of the main drive motor of loom and reel-motor rotating forward, carry out the transfer of warp thread, and carry out tension force control, the transfer of warp thread is carried out with constant tension force.And, in the transfer of warp thread, when warp tension exceedes setting tension force, let-off motor and reel-motor are stopped.
In addition, in above-mentioned prior art, when warp yarn supplying operates, reel-motor is driven with the constant rotary speed preset, by based on the detection tension force of the warp thread detected and the deviation (tension force deviation) of basal tension be set, control the speed of let-off motor, carry out mentioned strain control.That is, in prior art, attempt to make warp tension keep constant by only controlling let-off motor.
But, the prior art owing to being control the speed of let-off motor according to the tension force deviation occurred, therefore, when there is provisional hightension deviation, particularly when detection tension value substantially exceeds basal tension value, when producing tension force deviation, correspondingly control let-off motor significantly speedup.Therefore, result is controlled as it, tension force reduces, eliminate tension force deviation, but because the velocity variable (speedup amount) when there is deviation is large, so after eliminating deviation, have little time to control to make the velocity of rotation of let-off motor to get back to the velocity of rotation corresponding with the velocity of rotation of reel-motor, warp tension is caused to exceed basal tension value on the contrary, and towards the direction change increased.Its result, produces vibration in control, causes needing spended time that tension stability just can be made to become basal tension value.
Prior art document
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2-269841 publication
Summary of the invention
Therefore, problem of the present invention is: when loom transports warp thread continuously under halted state, when namely carrying out warp yarn supplying operation, stably can control, make warp tension remain on the state of hope.
The present invention, in view of above-mentioned problem, forms warp yarn supplying method and the device of following loom.Namely, warp yarn supplying method of the present invention is: the let-off motion of loom and batching apparatus with the let-off motor of the main drive motor independent of loom and reel-motor for drive source, under the state making described main drive motor stop, described let-off motor and described reel-motor is driven to carry out warp yarn supplying operation, and in described warp yarn supplying operation, detect the tension force of warp thread, and, warp tension value based on this detection is compared with a reference value of the warp tension preset, when described warp tension value departs from described a reference value, using described let-off motor and described reel-motor as control object, and perform tension force control according to the control model preset, described a reference value is got back to make the tension force of warp thread.
In addition, " (based on what detect) warp tension value " is not limited only to detected value itself, also can comprise the mean value etc. obtained from detected value." a reference value of warp tension " is not limited only to specific value, also comprises the scope (permissible range) with higher limit and lower limit.
Described control model can be set as: when warp thread being sent to described let-off motion side, when described warp tension value exceedes described a reference value, described let-off motor is slowed down or stops, when described warp tension value is lower than described a reference value, described reel-motor is slowed down or stops, when warp thread being sent to described batching apparatus side, when described warp tension value exceedes described a reference value, described reel-motor is slowed down or stops, when described warp tension value is lower than described a reference value, described let-off motor is slowed down or stops.
Described control model also can be set as: by the deviation of warp tension value described in the ratio cut partition preset and described a reference value, and be assigned in the control of described let-off motor and described reel-motor, control the driving of described let-off motor and described reel-motor, to eliminate the deviation be assigned to separately.
And, described control model also can be set as: the acceptable threshold presetting the deviation of described warp tension value and described a reference value, when described deviation is below described acceptable threshold, perform described tension force by a side of described let-off motor or described reel-motor to control, when described deviation exceedes described acceptable threshold, perform described tension force by described let-off motor and described reel-motor both sides and control.
Warp yarn supplying device of the present invention, premised on following loom: let-off motion and batching apparatus with the let-off motor of the main drive motor independent of loom and reel-motor for drive source, comprise: console switch, operating personnel are by manual operation, under being in halted state at loom, drive described let-off motor and reel-motor, perform warp yarn supplying operation; Tension detector, detects the tension force of warp thread in described warp yarn supplying operation; Warp yarn supplying control device, along with the operation of described console switch, control the driving of described let-off motor and described reel-motor, and, described warp yarn supplying control device comprises: memory, and setting stores the control model of a reference value of warp tension in the operation of described warp yarn supplying and the described let-off motor in warp yarn supplying operation and described reel-motor; Comparator, compares the warp tension value of the detected value based on described tension detector and described a reference value, and when described warp tension value departs from described a reference value generation deviation, output packet is containing the deviation signal of bias direction; Controller, based on the described deviation signal from described comparator, according to setting described control model in which memory, controls the driving of described let-off motor and described reel-motor.
In addition, above-mentioned " deviation signal " is not limited only to represent inclined extent (value), also can represent whether produce deviation.Above-mentioned " bias direction " represents the deviation of "+" (just) or the deviation of "-" (bearing).In the present invention, the deviation when deviation of positive direction refers to that warp tension value is less than a reference value (lower limit of permissible range), the deviation when deviation of negative direction refers to that detected value is greater than a reference value (higher limit of permissible range).
Only control compared with the warp tension control of let-off motor based on tension force deviation in operating with existing warp yarn supplying, the invention has the beneficial effects as follows: using let-off motor and reel-motor as control object, the tension force performed in warp yarn supplying operation controls, therefore, when there is provisional hightension deviation, even if when particularly warp tension value is significantly less than a reference value generation tension force deviation, also promptly tension stability can be made.
Described tension control mode is set as slow down according to the direction controlling let-off motor of deviation or reel-motor or stop, does not carry out speedup control, just easily can carry out the control of warp tension.
Two parts are divided into by needing the tension force deviation eliminated, the deviation of a part is eliminated by the control of let-off motor, and eliminate another part deviation by the control of reel-motor, the velocity variations of let-off motor and reel-motor just can be made to reduce, suppress vibration, meanwhile, the time that warp tension is restrained to basal tension value can be shortened.
Time below the threshold value that deviation is set, controlled by side's execution tension force of let-off motor or reel-motor, when deviation exceedes described threshold value, perform tension force by let-off motor and reel-motor both sides to control, therefore, such as: when tension force deviation is large, first let-off motor and reel-motor both sides are controlled, by making the motor speedup of a side, the opposing party is slowed down, and large deviation can be made to diminish rapidly.Time below the threshold value that deviation becomes setting, as long as switch tension force to control, only perform tension force by the side in let-off motor or reel-motor to control, when making warp tension restrain to basal tension value, the control of let-off motor and the control of reel-motor just can be avoided to influence each other, deviation can be eliminated with stable control.
Accompanying drawing explanation
Fig. 1 represent the present invention the key diagram of cord fabric loom overview that is suitable for;
Fig. 2 represent the present invention the key diagram of the control summary of cord fabric loom that is suitable for;
Fig. 3 represent the present invention the control block diagram of cord fabric loom that is suitable for;
Fig. 4 represents the block diagram of the warp yarn supplying control device in one embodiment of the invention.
Symbol description
1-is for yarn portion, 1a-warp thread, 1b-longitude yarn row, 2-weaving device (weaving portion), 2a-weaves cotton cloth, another batching apparatus of 3-(reeling end), 3a-driven roller, 3b-driven voller, 3c-cloth beam, 3d-deflector roll, 4-tensioner, 4a-deflector roll, 4b-dance roller, 5-let-off motion, 5a-niproll, 5b-warp let-off roller, 5c-let-off motor, 5d-tachometer generator, 6-tension detector, 6a-deflector roll, 6b-jockey pulley, 7-weaves cotton cloth the portion of weaving, 7a-heald frame, 7b-deflector roll, 8-batching apparatus, 8a-backer roll, 8b-takes winding up roller, 8c-reel-motor, 8d-impulse generator, 9-main shaft, 9a-encoder, 10-warp let-off control device, 11-goal tension setting apparatus, 12-tension force Signal averaging point, 13-mean tension arithmetic unit, 14-erection rate arithmetic unit, 15-base speed arithmetic unit, 16-command speed arithmetic unit, 17-Signal averaging point, 18-control amplifier, 19-switch, 20-winding control device, 21-frequency multiplier, 22-control amplifier, 23-frequency divider, 24-switch, 25-Signal averaging point, 30-loom control device, 40-warp yarn supplying control device, 41-base speed generator, 42-memory, 43-detection control device, 44-comparator, 45-controller, 46-clock-signal generator, 47-Signal averaging point, 48-Signal averaging point, A-console switch, B-console switch.
Detailed description of the invention
Below, with reference to Fig. 1 to the present invention the cord fabric fabric knitting loom (hereinafter referred to as " cord fabric loom " or be only called " loom ") that is suitable for be described.Cord fabric fabric refers to, the rubber reinforcement one of weaving cotton cloth used when manufacturing casing ply as rubber tyre skeleton, and it comprises weft count low-down curtain part and the high plain weave part of weft count.Curtain part is the part as cord fabric fabric body, and plain weave part be before curtain part starts to knit with to form the part of specific length at warp thread direction after casting off, being the curtain portion deforms for preventing weft count low, keeping the part of the fabric form of cord fabric fabric.
In Fig. 1, be independently provided with the following part as main composition at cord fabric loom: for yarn portion 1, weaving device 2 and another batching apparatus 3.Wherein, described is that many warp thread 1a are supplied yarn as the horizontal one longitude yarn row 1b arranged for yarn portion 1; Described weaving device 2, as woven portion, forms in not shown weft yarn wefting insertion to longitude yarn row 1b the 2a that weaves cotton cloth; Another batching apparatus 3 described, as reel-up, batches the 2a that weaves cotton cloth.
Not shown creel device and tensioner 4 is comprised for yarn part 1.Be provided with many support components (pillar) at not shown creel device, in multistage multiple row shape, be fitly provided with many for yarn body relative to these support components.Warp thread 1a is pulled out from many this creel device in yarn body simultaneously, and guides to tensioner 4.
Tensioner 4 makes the many warp thread 1a be drawn out from creel device laterally arrange row, and gives tension force to longitude yarn row 1b, to make the tension force of each warp thread 1a be drawn out from difference for yarn body respectively substantially even by multiple deflector roll 4a and storage line roller 4b.The longitude yarn row 1b of even tension is fed into weaving device 2.
Weaving device 2 is the parts being equivalent to loom main body in common loom, and its formation is substantially identical with common loom.But, in common loom, longitude yarn row 1b is wound onto and is equipped in the warp let-off warp beam of loom main body, by this warp let-off warp beam of rotating drive, the longitude yarn row 1b be wound in warp let-off warp beam is supplied to the portion of weaving 7 of weaving cotton cloth, in contrast, in illustrated cord fabric loom, by being sent by the longitude yarn row 1b supplied from described tensioner 4 by the let-off motion 5 in weaving device 2, thus longitude yarn row 1b is supplied to the portion of weaving 7 of weaving cotton cloth.
Below, with reference to Fig. 2, weaving device 2 is described.Weaving device 2 comprises following main composition part: let-off motion 5, tension detector 6, the weave cotton cloth portion of weaving 7 and batching apparatus 8.Wherein, longitude yarn row 1b sends by described let-off motion 5; Described tension detector 6 detects the tension force (hereinafter referred to as " warp tension ") of longitude yarn row 1b; The described portion of weaving 7 of weaving cotton cloth comprises heald frame 7a and not shown weft inserting apparatus and the reed etc. of shedding motion, for woven fabrics 2a; Described batching apparatus 8 batches the woven 2a that weaves cotton cloth.
Let-off motion 5 comprises the let-off motor 5c of niproll 5a, warp let-off roller 5b and rotating drive warp let-off roller 5b.Longitude yarn row 1b, around to hang on niproll 5a and warp let-off roller 5b and by both clampings, to be rotated along forward direction by warp let-off roller 5b when weaving and is sent to batching apparatus 8 side.Let-off motor 5c is the motor of the main drive motor independent of loom, controls its rotating drive by warp let-off control device 10.Warp let-off control device 10 adjusts the sendout of warp let-off row 1b, i.e. the velocity of rotation of let-off motor 5c, with the tension force making the tension force of longitude yarn row 1b become hope.Illustrating of warp let-off control device 10 will in rear description.
The longitude yarn row 1b sent from let-off motion 5 around hanging over jockey pulley 6b, and is directed to the portion of weaving 7 of weaving cotton cloth via deflector roll 6a.Be connected with tension detector 6 at jockey pulley 6b, tension detector 6 detects the tension force weaving middle longitude yarn row 1b.In addition, in the present embodiment, this tension detector 6 also doubles as the tension detector of main composition parts of the present invention, in warp yarn supplying operation described later, detect warp tension.Certainly, except this tension detector 6, also can special tension detector be set in addition, detects the warp tension in warp yarn supplying operation.
Weaving cotton cloth in the portion of weaving 7, longitude yarn row 1b is by heald frame 7a by opening, and weft yarn is woven into by not shown weft inserting apparatus and reed etc., is woven into the 2a that weaves cotton cloth.The 2a that weaves cotton cloth be woven passes out to another batching apparatus 3 side shown in Fig. 1 by batching apparatus 8.
Batching apparatus 8 comprises: 2 backer roll 8a, compressed by these backer rolls 8a take winding up roller 8b, drive the reel-motor 8c taking winding up roller 8b.Weaving cotton cloth, the woven 2a of weaving cotton cloth in the portion of weaving 7 is directed to batching apparatus 8 side via deflector roll 7b, be wound around backer roll 8a successively, take winding up roller 8b, on backer roll 8a, and be clamped between these rollers, when weaving, rotating along forward direction the 2a that will weave cotton cloth pass out to another batching apparatus 3 side by taking winding up roller 8b.Reel-motor 8c is the motor of the main drive motor independent of loom, controls its rotating drive by winding control device 20.When weaving, winding control device 20 with the amount of spin corresponding to the weft count be set in loom control device 30, with the rotational synchronization rotating drive reel-motor 8c of the main shaft 9 of loom.Illustrating of winding control device 20 will in rear description.
As shown in Figure 1, the 2a that weaves cotton cloth sent from batching apparatus 8 is batched by another batching apparatus 3.Another batching apparatus 3 comprises: by the driven roller 3a of rotating drive and the driven voller 3b rotated freely.These rollers are placed with cloth beam 3c, and the one end of the 2a that weaves cotton cloth is wound on this cloth beam 3c.In weaving, contacting and rotate by making cloth beam 3c with driven roller 3a, the 2a that makes to weave cotton cloth batches on cloth beam 3c through deflector roll 3d, driven voller 3b.
Then, with reference to Fig. 3, the formation of warp let-off control device 10 and winding control device 20 and the action of these devices when weaving are described, and, for characteristic of the present invention, in the warp yarn supplying operation when loom stops, the warp yarn supplying control device 40 of action is described.
As mentioned above, warp let-off control device 10 is when weaving, and the sendout of adjustment longitude yarn row 1b, i.e. the velocity of rotation of let-off motor 5c, with the tension force making the tension force of longitude yarn row 1b become hope.The signal of the tension value of the longitude yarn row 1b that tension detector 6 detects is inputted in the mean tension arithmetic unit 13 of warp let-off control device 10, the signal of the angle of rotation of the main shaft 9 detected with encoder 9a, each sampling period that mean tension arithmetic unit 13 presets at the regulation rotational angle etc. based on main shaft 9 samples to described tension value, and calculate the mean value (hereinafter referred to as " mean tension ") of the described tension value of sampling within specified time limit.The signal of the mean tension calculated is output to the subtraction end of tension force Signal averaging point 12.
The goal tension signal be set in advance in goal tension setting apparatus 11 is inputted in the addition end of tension force Signal averaging point 12.Tension force Signal averaging point 12 calculates their tension force deviation from the signal of mean tension and the signal of goal tension of input, and the signal of this tension force deviation is outputted to erection rate arithmetic unit 14.
Erection rate arithmetic unit 14 has various controlling element, such as: ratio, integration, differential, and, clock signal period ground work according to the rules, calculate speed correction with this based on described tension force drift gage, and the signal of this speed correction is outputted in command speed arithmetic unit 16.In addition, for command speed arithmetic unit 16, also export the signal of base speed from base speed arithmetic unit 15.
Input from loom control device 30 in base speed arithmetic unit 15, the signal relevant to the setting number of revolutions of loom and the weft count (being setting value) of weaving cotton cloth that is woven.Base speed arithmetic unit 15 calculates base speed from the setting number of revolutions and weft count of input, and exports the signal of this base speed to command speed arithmetic unit 16.
The base speed that command speed arithmetic unit 16 obtains from base speed arithmetic unit 15 with the speed correction correction obtained from erection rate arithmetic unit 14, and the addition end signal of revised for base speed erection rate being outputted to speed Signal averaging point 17.In addition, switch 19 is for switching the control device of let-off motor 5c in the warp let-off operation when weaving and when loom described later stops.In figure 3, switch 19 is in state when weaving.
The tachometer generator 5d detecting let-off motor 5c velocity of rotation is connected with at the subtraction end of speed Signal averaging point 17.Based on the output of this tachometer generator 5d, speed Signal averaging point 17 calculates the velocity of rotation of let-off motor 5c, and outputs to control amplifier 18 by the velocity of rotation of the let-off motor 5c calculated with from the velocity of rotation deviation of the erection rate of command speed arithmetic unit 16.
The drive singal eliminating described velocity of rotation deviation is outputted to let-off motor 5c by control amplifier 18, and increases and decreases the velocity of rotation of let-off motor 5c.As mentioned above, when weaving, the warp tension that warp let-off control device 10 pairs of tension detectors 6 detect and goal tension compare, calculate tension force deviation, and increase and decrease the velocity of rotation of let-off motor 5c, to eliminate this tension force deviation, by controlling the sendout of longitude yarn row 1b, the tension force of longitude yarn row 1b is made to remain on the tension force of hope.
On the other hand, winding control device 20 controls the velocity of rotation of reel-motor 8c according to the velocity of rotation of main shaft 9.The burst signal of the rotational angle of the main shaft 9 detected based on encoder 9a is inputted, with the signal relevant to weft count from loom control device 30 in the frequency multiplier 21 of winding control device 20.Frequency multiplier 21 with the pulse recurrence frequency of burst signal described in the mode conversion of the weft count corresponding to input, and calculates the target rotational amount of reel-motor 8c when main shaft 9 often rotates a circle.The burst signal of the target rotational amount calculated is output to the addition end of amount of spin Signal averaging point 25.In addition, switch 24 is for switching the control device of reel-motor 8c in the warp let-off operation when weaving and when loom described later stops.In figure 3, switch 24 is in state when weaving.
At the subtraction end of amount of spin with Signal averaging point 25, be connected with the impulse generator 8d detecting reel-motor 8c amount of spin by frequency divider 23.Frequency divider 23 changes the pulse recurrence frequency of the burst signal of impulse generator 8d, and adjusts the pulse recurrence frequency of the pulse recurrence frequency of the burst signal of impulse generator 8d and the burst signal of target rotational amount.Amount of spin Signal averaging point 25 calculates amount of spin deviation according in the burst signal of target rotational amount and the burst signal of impulse generator 8d, and outputs to control amplifier 22.
The drive singal eliminating described amount of spin deviation is outputted to reel-motor 8c by control amplifier 22, and increases and decreases the velocity of rotation of reel-motor 8c.As mentioned above, when weaving, winding control device 20 with the amount of spin corresponding to the weft count be set in loom control device 30, with the rotational synchronization rotating drive reel-motor 8c of loom main shaft 9.
Characteristic of the present invention, in the warp yarn supplying operation when loom stops, the warp yarn supplying control device 40 of action forms warp yarn supplying device jointly with let-off motion 5, batching apparatus 8, console switch A, B and tension detector 6.Warp yarn supplying control device 40 is connected with loom control device 30, warp let-off control device 10 and winding control device 20.
Switch A, B for performing warp yarn supplying operation are connected to loom control device 30, in illustrated example, console switch A plays a part the operation of reversion warp yarn supplying, for longitude yarn row 1b is sent to let-off motion 5 side continuously, console switch B plays a part to rotate forward warp yarn supplying operation, for longitude yarn row 1b is sent to batching apparatus 8 side continuously.When loom is in halted state, if console switch A or B described in operating personnel's manual operation, then loom control device 30 pairs of warp yarn supplying control device 40 output function command signals, perform warp yarn supplying operation to make it.
At warp let-off control device 10 and winding control device 20, arrange above-mentioned switch 19,24 respectively, warp yarn supplying control device 40 is connected to warp let-off control device 10 and winding control device 20 by this switch 19,24.Each switch 19,24 is controlled by loom control device 30, is switched to warp yarn supplying control device 40 side along with the operation of console switch A or B.
With reference to Fig. 4, the formation of warp let-off control device 40 is described.In illustrated example, warp yarn supplying control device 40 comprises base speed generator 41, memory 42, detection control device 43, comparator 44 and controller 45.
There is speed value when carrying out warp yarn supplying with the speed of regulation to longitude yarn row 1b in base speed generator 41, this speed value is used for basic velocity of rotation, i.e. base speed rotating drive let-off motor 5c and reel-motor 8c.The signal of this speed value outputs to Signal averaging point 47,48, and outputs to the addition end of the Signal averaging point 17 of warp let-off control device 10 and the Signal averaging point 25 of winding control device 20 by this Signal averaging point 47,48.
The velocity of rotation of let-off motor 5c and reel-motor 8c is set with in memory 42, described velocity of rotation is as the basis of the speed value of above-mentioned base speed generator 41, in addition, the let-off motor 5c in a reference value of the warp tension in warp yarn supplying operation, warp yarn supplying operation and the control model of reel-motor 8c is also set with in memory 42.In addition, a reference value of warp tension is not as particular value, but sets as scope (permissible range).
In the present embodiment, as the control model of the let-off motor 5c in the operation of above-mentioned warp yarn supplying and reel-motor 8c, setting make the side in let-off motor 5c and reel-motor 8c only deceleration specify the control model of amount of deceleration.More particularly, when warp thread being sent to let-off motion 5 side (during reversion warp yarn supplying), be set as: when warp tension value exceedes a reference value, the velocity of rotation of let-off motor 5c is only slowed down ormal weight, when warp tension value is lower than a reference value, the velocity of rotation of reel-motor 8c is only slowed down ormal weight.When warp thread being sent to batching apparatus 8 side (when rotating forward warp yarn supplying), be set as: when warp tension value exceedes a reference value, the velocity of rotation of reel-motor 8c is only slowed down ormal weight, when warp tension value is lower than a reference value, the velocity of rotation of let-off motor 5c is only slowed down ormal weight.The motor not becoming deceleration object with base speed by constant drive.In addition, the regulation amount of deceleration controlled for above-mentioned deceleration is set in memory 42 together with control model.
Detection control device 43 is connected to tension detector 6, corresponds to the detection signal of warp tension testing value from tension detector 6 input.And, detection control device 43 is connected with clock-signal generator 46, inputs the clock pulse signal of constant frequency from clock-signal generator 46.Detection control device 43 counting clock pulse, and in each count value (each sampling period) preset, the detected value in this time from tension detector 6 is outputted in comparator 44 as warp tension value.
In addition, being detected and the warp tension value outputted in comparator 44 is not limited in the detected value itself detected in each sampling period as above by tension detector 6, also can be the mean value of multiple detected value be detected between the sampling period.In this situation, between the detection period that prior setting is shorter than the sampling period (such as, when often there is above-mentioned clock pulses), as the equipment that can obtain multiple detected value in the sampling period, detection control device 43 had make the function of the multiple detected value equalizations obtained in its sampling period.It also can be the main axis angle initialization with loom between above-mentioned sampling period and detection period.
Comparator 44 is connected to memory 42 and detection control device 43, inputs the signal of a reference value of warp tension from memory 42, inputs the signal of warp tension value from detection control device 43.Comparator 44 compares the above-mentioned warp tension value of input and said reference value, when warp tension value departs from a reference value (permissible range) (when producing deviation), controller 45 is exported to the deviation signal (comprising the information about bias direction) representing and deviation occurs.Specifically, when warp tension value is less than the lower limit of a reference value (permissible range), controller 45 is exported to the deviation signal representing and positive direction deviation occurs.When detected value is greater than the higher limit of a reference value (permissible range), controller 45 is exported to the deviation signal representing and negative direction deviation occurs.
Controller 45 is connected to comparator 44, inputs described deviation signal from comparator 44.Controller 45 is after the described deviation signal of input, according to above-mentioned control model, by the erection rate signal corresponding with the amount of deceleration be set in memory 42, output to the subtraction end of the Signal averaging point 47,48 of warp let-off control device 10 side or winding control device 20 side being arranged on base speed generator 41 downstream.
Then, the action of warp yarn supplying control device 40 is described.In the following description, for carrying out back defect operation, the situation of warp yarn supplying operation of namely reversing describes.In above-mentioned record, return defect operation refer to, the middle discovery of weaving cotton cloth be woven can not allow qualitatively float time, make this float part turn back to the operation of knitting front position to repair.In addition, when rotating forward warp yarn supplying operation, the relation between bias direction with the motor as control object is then contrary.
When weaving cord fabric fabric, when finding the problems such as the float that can not allow when the curtain part of weaving cotton cloth be woven, operating personnel operate the stop button (not shown) of loom, and loom is stopped.
Then, needing the position from there is float again again to weave, carrying out back defect operation.In addition, the curtain part of curtain portion fabric due to weft count very low, therefore, even if do not carry out, as the operation making the opening-like state of warp thread in common fabric, weft yarn to be extracted out from longitude yarn row yet.Therefore, in time defect operation of cord fabric loom, first, all extract out to the weft yarn that the parts such as float occur from longitude yarn row, then, turn back to for making it and knit front position, the console switch A shown in Fig. 3 is operated.
Console switch A is switched to warp yarn supplying control device 40 the control subject of let-off motor 5c from command speed arithmetic unit 16 etc. by switch 19 after connecting.Equally, the control subject of reel-motor 8c is switched to warp yarn supplying control device 40 from frequency multiplier 21 etc.Warp yarn supplying control device 40 starts to drive let-off motor 5c and reel-motor 8c to reverse with base speed, and, let-off motor 5c and reel-motor 8c drives the winding up roller 8b that takes of the warp let-off roller 5b of the let-off motion 5 shown in Fig. 2 and batching apparatus 8 to reverse, and start warp yarn supplying operation, make longitude yarn row 1b be sent to let-off motion 5 side continuously.
In the operation of this warp yarn supplying, identical with when weaving, be also detect warp tension by tension detector 6.The detection control device 43 of warp yarn supplying control device 40 is sampled at the detection signal of each count value (each sampling period) preset to the detected value representing tension detector 6, and is outputted in comparator 44 as warp tension value by the detected value of sampling.
The comparator 44 that have input warp tension value from detection control device 43 compares the warp tension value of input and a reference value (permissible range) being set in the warp tension memory 42.Its comparative result, when warp tension value is from when departing from generation deviation as the permissible range shown in a reference value, exports the deviation signal representing its bias direction to controller 45.Specifically, when warp tension value is less than the lower limit of a reference value (permissible range), controller 45 is exported to the deviation signal representing and there occurs positive direction deviation, when detected value is greater than the higher limit of a reference value (permissible range), controller 45 is exported to the deviation signal representing and there occurs negative direction deviation.
After controller 45 receives the deviation signal of positive direction or negative direction from comparator 44, the erection rate signal being used for slow-down is exported to the Signal averaging point 48,47 of winding control device 20 side or warp let-off control device 10 side.Described in specific as follows.
When the deviation signal from comparator 44 represents the deviation of positive direction, namely, actual tension force step-down, when warp tension value is less than the lower limit of a reference value (permissible range), export erection rate signal to the Signal averaging point 48 of winding control device 20 side, this erection rate signal is equivalent to be set in the amount of deceleration in memory 42.Its result, the speed value from base speed generator 41 is revised according to this erection rate signal, only to be slowed down above-mentioned amount of deceleration by the velocity of rotation of the reel-motor 8c of rotating drive with base speed.With this, make the warp yarn supplying amount of batching apparatus 8 (the warp yarn supplying amount taking winding up roller 8b of=time per unit) reduce and warp tension is in rising trend, eliminate deviation.
On the other hand, when the deviation signal from comparator 44 represents the deviation of negative direction, namely, actual tension force becomes large, when warp tension value is greater than the higher limit of a reference value (permissible range), export erection rate signal to the Signal averaging point 47 of warp let-off control device 10 side, this erection rate signal is equivalent to be set in the amount of deceleration in memory 42.Its result, only to be slowed down above-mentioned amount of deceleration by the reel-motor 5c of rotating drive with base speed.With this, make let-off motion 5 warp rolls taken amount (the warp yarn supplying amount of the warp let-off roller 5b of=time per unit) reduce and warp tension is on a declining curve, eliminate deviation.
Comparator 44 carries out above-mentioned comparison, the result of above-mentioned control when inputting warp tension value from detection control device 43 at every turn, stops the output of deviation signal when deviation is eliminated.Thus controller 45 stops exporting erection rate signal, and, let-off motor 5c and reel-motor 8c both sides be all in again with base speed by the state of rotating drive.The result of comparison, when deviation is eliminated not yet, comparator 44 continues output bias signal, thus proceeding following control: the deceleration carrying out let-off motor 5c or reel-motor 8c according to the control model of setting controls, that is, the velocity of rotation of let-off motor 5c or reel-motor 8c is driven under the state of the amount of deceleration of set regulation of only slowing down.
In addition, described control model according to the direction of deviation, the side in let-off motor 5c or reel-motor 8c is only slowed down the amount of deceleration of regulation, but in this control model, let-off motor 5c or reel-motor 8c also can be made to stop operating to replace deceleration.In this situation, amount of deceleration need not be set to memory 42.
In described control model, also can change amount of deceleration according to inclined extent, replace the amount of deceleration of regulation of only slowing down.In this situation, deviation signal comprises the information relevant to deviation size, and in advance the multiple amount of deceleration corresponding with deviation size (magnitude range) being set to memory 42, controller 45 selects amount of deceleration based on the deviation signal exported from comparator 44.
And, be not limited only to only to carry out described slow down control and stop to control in any one, the mode of slowing down and stop can also be switched according to deviation size and control.In this situation, adopt following control model, that is: in advance the deviation feasible value controlled of slowing down is carried out to memory 42 setting, if extent is below this feasible value partially, then carry out described deceleration to control, if extent exceedes feasible value partially, then carry out described stopping and controlling.In addition, in this situation, slowing down and control can be the amount of deceleration of described regulation of only slowing down, also can be change amount of deceleration according to inclined extent.
Above, a preferred embodiment of the present invention is illustrated, but the control model being used in warp yarn supplying method of the present invention is not limited in the control model of above-described embodiment, adopts the control model described in following variation 1,2 also can implement the present invention.
Variation 1
In described embodiment, based on warp let-off direction and bias direction, control the driving of a side in let-off motor 5c or reel-motor 8c, but also can consider the driving being set as the control model being used for eliminating deviation simultaneously to control let-off motor 5c and reel-motor 8c, replace above-mentioned control model.Specifically, when warp tension generation deviation, the deviation signal that comparator 44 pairs of controllers 45 export is not only bias direction, also comprise the information relevant to deviation size, for occurred deviation, not to eliminate deviation by means of only the side controlled in let-off motor 5c and reel-motor 8c, but realize eliminating a certain proportion of deviation in the deviation occurred by controlling let-off motor 5c, and realize eliminating remaining deviation by controlling reel-motor 8c, with by carrying out synergistically the control of two motors.
Such as, if aforementioned proportion is set to: warp let-off side 50%: batch side 50%, in order to eliminate the deviation D of generation, warp let-off control device 10 couples of let-off motor 5c control, to eliminate the deviation of D/2, and, winding control device 20 couples of reel-motor 8c control, to eliminate the deviation of D/2.In this situation, the controller 45 of warp yarn supplying control device 40 calculates the speed correction amount eliminating each deviation, and this erection rate signal is outputted to each Signal averaging point 47,48 of warp let-off control device 10 side and winding control device 20 side.
Variation 2
As other variation, also following control model can be adopted: the acceptable threshold of deviation be set in advance in memory 42, if deviation is the little deviation of below acceptable threshold, then realize eliminating deviation by the side controlled in let-off motor 5c or reel-motor 8c, if deviation is the large deviation of more than acceptable threshold, then perform the control (tension force undertaken by the control of let-off motor 5c and these two motors of reel-motor 8c is controlled) of above-mentioned variation 1.In this situation, in the memory 42 of warp yarn supplying control device 40, be set with this acceptable threshold, and for the control when deviation is below acceptable threshold, be set with control object to be set in let-off motion 10 side, batching apparatus 20 side any one etc.
In addition, in this situation, when deviation is below acceptable threshold, performs the control model of above-described embodiment, when deviation exceedes acceptable threshold, also can adopt the control model of above-mentioned variation 1.As the control when deviation exceedes acceptable threshold, also other control model can be adopted to replace the control of above-mentioned variation 1, such as: according to bias direction, make side's motor only speedup or the deceleration ormal weight in let-off motor 5c and reel-motor 8c, and drive the opposing party's motor based on the warp tension detected.
The defect that returns that the present invention is not limited only to the cord fabric loom shown in the present embodiment operates, also be applicable to weave weft count low, and do not make Warp opening also can from returning defect operation the loom of the fabric of middle extraction weft yarn of weaving cotton cloth (such as: adhesive tape base fabric, gauze etc.).The warp yarn supplying operation (in this situation, driving let-off motor and reel-motor to rotate forward) carried out such as to be also applicable to when upper machine.
Claims (5)
1. the warp yarn supplying method of a loom, the let-off motion (5) of described loom and batching apparatus (8) with the let-off motor of the main drive motor independent of loom (5c) and reel-motor (8c) for drive source, it is characterized in that
Under the state making described main drive motor stop, described let-off motor (5c) and described reel-motor (8c) is driven to carry the warp yarn supplying of warp thread to operate continuously, this warp yarn supplying operation be return defect operation time or on machine time perform warp yarn supplying operation, and in described warp yarn supplying operation, detect the tension force of warp thread, and, warp tension value based on this detection is compared with a reference value of the warp tension preset, when described warp tension value departs from described a reference value, using described let-off motor (5c) and described reel-motor (8c) as control object, perform tension force according to the control model preset to control, described a reference value is got back to make the tension force of warp thread.
2. the warp yarn supplying method of loom according to claim 1, it is characterized in that, described control model is set as: when warp thread being sent to described let-off motion (5) side, when described warp tension value exceedes described a reference value, described let-off motor (5c) is slowed down or stops, when described warp tension value is lower than described a reference value, described reel-motor (8c) is slowed down or stops, when warp thread being sent to described batching apparatus (8) side, when described warp tension value exceedes described a reference value, described reel-motor (8c) is slowed down or stops, when described warp tension value is lower than described a reference value, described let-off motor (5c) is slowed down or stops.
3. the warp yarn supplying method of loom according to claim 1, it is characterized in that, described control model is set as: by the deviation of warp tension value described in the ratio cut partition preset and described a reference value, and be assigned in the control of described let-off motor (5c) and described reel-motor (8c), control the driving of described let-off motor (5c) and described reel-motor (8c), to eliminate the deviation be assigned to separately.
4. the warp yarn supplying method of loom according to claim 1, it is characterized in that, described control model is: the acceptable threshold presetting the deviation of described warp tension value and described a reference value, when described deviation is below described acceptable threshold, perform described tension force by the side in described let-off motor (5c) or described reel-motor (8c) to control, when described deviation exceedes described acceptable threshold, perform described tension force by described let-off motor (5c) and described reel-motor (8c) both sides and control.
5. the warp yarn supplying device of a loom, the let-off motion (5) of described loom and batching apparatus (8) with the let-off motor of the main drive motor independent of loom (5c) and reel-motor (8c) for drive source, it is characterized in that, comprising:
Console switch (A, B), operating personnel are by manual operation, for carry out under the state making loom stop return defect operation time or on machine time, drive described let-off motor (5c) and reel-motor (8c), perform and carry the warp yarn supplying of warp thread to operate continuously;
Tension detector (6), detects the tension force of warp thread in described warp yarn supplying operation;
Warp yarn supplying control device (40), along with the operation of described console switch (A, B), controls the driving of described let-off motor (5c) and reel-motor (8c),
And described warp yarn supplying control device (40) comprising:
Memory (42), setting stores the control model of a reference value of warp tension in the operation of described warp yarn supplying and the described let-off motor (5c) in warp yarn supplying operation and reel-motor (8c);
Comparator (44), the warp tension value of the detected value based on described tension detector (6) and described a reference value are compared, and when described warp tension value depart from described a reference value there is deviation time, output packet is containing the deviation signal of bias direction;
Controller (45), based on the described deviation signal from described comparator (44), according to the described control model be set in described memory (42), control the driving of described let-off motor (5c) and reel-motor (8c).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011010858A JP5909042B2 (en) | 2011-01-21 | 2011-01-21 | Method and apparatus for feeding warp in loom |
| JP2011-010858 | 2011-01-21 |
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| CN102605518A CN102605518A (en) | 2012-07-25 |
| CN102605518B true CN102605518B (en) | 2015-01-14 |
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| CN201110412855.1A Active CN102605518B (en) | 2011-01-21 | 2011-12-13 | Warp feeding method and warp feeding device in loom |
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| EP (1) | EP2479326B1 (en) |
| JP (1) | JP5909042B2 (en) |
| CN (1) | CN102605518B (en) |
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| CN104762736A (en) * | 2015-04-03 | 2015-07-08 | 苏州科明纺织有限公司 | Electronic warp conveying device |
| CN105624892B (en) * | 2015-04-08 | 2017-07-28 | 杭州创兴云智能设备科技股份有限公司 | A kind of fixed-quantity yarn feeding device |
| JP6513000B2 (en) | 2015-09-15 | 2019-05-15 | 津田駒工業株式会社 | Method and apparatus for managing weaving in a tire cord woven fabric loom |
| CN105350164B (en) * | 2015-12-10 | 2017-04-19 | 河北英凯模金属网有限公司 | Servo control system of netting machine |
| CN107557975A (en) * | 2017-09-30 | 2018-01-09 | 江苏浩泰毛纺织染有限公司 | A kind of let-off motion for rapier loom |
| CN108360126A (en) * | 2017-12-27 | 2018-08-03 | 安徽普惠织物股份有限公司 | A kind of dry selvage line let-off motion and warp let-off method |
| CN109775405B (en) * | 2019-02-18 | 2020-06-09 | 平顶山神马帘子布发展有限公司 | Method for correcting pressure of double-roller friction type passive winding device for winding impregnated cord fabric |
| JP7437173B2 (en) | 2020-02-05 | 2024-02-22 | 津田駒工業株式会社 | Automatic fiber bundle placement device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0655979B2 (en) * | 1985-10-28 | 1994-07-27 | 株式会社豊田自動織機製作所 | Weft processing method for shuttleless loom |
| BE905314A (en) * | 1986-08-22 | 1987-02-23 | Picanol Nv | METHOD FOR CONTROLLING THE CHAIN LATE AND CLOTH WRAPPING IN WEAVING MACHINES. |
| JP2894709B2 (en) * | 1988-12-28 | 1999-05-24 | 株式会社豊田中央研究所 | Warp speed controller |
| JP2870007B2 (en) * | 1989-04-12 | 1999-03-10 | 株式会社豊田自動織機製作所 | Warp transfer method in loom |
| DE4123671A1 (en) * | 1991-07-17 | 1993-01-21 | Berger Lahr Gmbh | WEAVING MACHINE |
| IT1283231B1 (en) * | 1996-03-12 | 1998-04-16 | Nuovo Pignone Spa | CONTROL SYSTEM PERFECTED FOR A TEXTILE FRAME WITHOUT SHUTTLE |
| CN1274893C (en) * | 2001-12-27 | 2006-09-13 | 东华大学 | Control system for eliminating crack marks and heavy bars caused by loom stop by parameter setting method and its application method |
| JP4189249B2 (en) * | 2003-03-31 | 2008-12-03 | 津田駒工業株式会社 | Weaving step prevention device in loom |
| CN1456723A (en) * | 2003-05-13 | 2003-11-19 | 上海大学 | Electronic let-off controlling system and method |
| JP5095316B2 (en) * | 2007-09-05 | 2012-12-12 | 東芝機械株式会社 | Loom and loom drive. |
| CN201217731Y (en) * | 2008-05-15 | 2009-04-08 | 上海武建通讯设备有限公司 | Intelligent control system for jet loom |
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| EP2479326B1 (en) | 2015-06-10 |
| JP5909042B2 (en) | 2016-04-26 |
| JP2012149365A (en) | 2012-08-09 |
| EP2479326A2 (en) | 2012-07-25 |
| EP2479326A3 (en) | 2013-05-22 |
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