CN106854792A - Based on the device and method that three-dimensional loom fabric tissue is compensated to warp tension - Google Patents

Based on the device and method that three-dimensional loom fabric tissue is compensated to warp tension Download PDF

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Publication number
CN106854792A
CN106854792A CN201611213389.3A CN201611213389A CN106854792A CN 106854792 A CN106854792 A CN 106854792A CN 201611213389 A CN201611213389 A CN 201611213389A CN 106854792 A CN106854792 A CN 106854792A
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Prior art keywords
warp
jockey pulley
heald frame
fabric tissue
compensated
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CN201611213389.3A
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CN106854792B (en
Inventor
梁双强
周其洪
陈革
谢位
李毓陵
韩天赐
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Donghua University
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Donghua University
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    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00Details or constructional features not specially adapted for looms of a particular type
    • D03D49/04Control of the tension in warp or cloth
    • D03D49/12Controlling warp tension by means other than let-off mechanisms
    • D03D49/14Compensating for tension differences during shedding

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)

Abstract

The invention provides a kind of device compensated to warp tension based on three-dimensional loom fabric tissue, three-dimensional loom includes warp beam, and warp beam warp thread out forms fabric by layering frame, through heald frame and weft yarns;The device compensated to warp tension includes moving up and down heald frame for moving up and down the warp thread for causing elongation or shrinks the jockey pulley and its drive device that carry out synchroballistic, each warp beam is corresponding to set a jockey pulley, warp beam warp thread out is U-shaped to bypass jockey pulley, then by layering frame, through heald frame and weft yarns.Present invention also offers a kind of method compensated to warp tension based on three-dimensional loom fabric tissue.Active compensation device simple structure, dependable performance that the present invention is provided, the weaving of the performance fibers high such as the carbon fiber of poor flexibility can be well adapted for, being open the three-dimensional loom of satisfaction more, be required with the frequent compensation for becoming traverse of a piece of heald frame needs, improve loom efficiency and fabric quality.

Description

Based on the device and method that three-dimensional loom fabric tissue is compensated to warp tension
Technical field
The present invention relates to technical field of textile machine, more particularly to a kind of solid loom fabric tissue that is based on is to warp tension Carry out the device and method of active compensation.
Background technology
Carbon fiber textile composite is because its lightweight, specific stiffness high, excelling in fatigue property and than ordinary metallic alloys more Corrosion resistance high, has become a kind of important material.Composite material for weaving is widely used in Aero-Space, ocean, builds Build, physical culture, in the senior engineering structure such as automobile.Three-dimensional woven composite overcomes poor performance, layer outside laminated composite face Between shear strength and the low weakness of fracture toughness.The overall structure of 3D fabrics improves damage tolerance, eliminates generation in lamination Layering in 2D structures, can bear polyaxial mechanical stress.Three-dimensional woven product currently used for enhancing composite mainly have Woven fabric, knitted fabric, braid and supatex fabric.It is woven composite material wherein using a relatively broad class.
When Tradition Looms are weaved, warp tension compensation is main to have mechanical passive compensation and based on cam or bias Take turns the oscillating back rest formula compensation of control.Mechanical passiveness compensation mechanism complex structure, connecting rod is more, the inertia force of parts and rubs Wiping resistance can all influence the warp let-off and the sensitivity of tension force, so vibration is big, control accuracy is low, should not adapt at a high speed.Swing Beam type compensation mechanism can compensate for the warp path stroke change that integrated box movement is caused afterwards, have more than mechanical passiveness compensation method Good control accuracy.It is practical for the preferable yarn of elastic modelling quantity, but the fiber poor for elasticity is not applied to, and is held Easily yarn is caused to damage.And beam type tension adjustment range is small after tradition, belong to passive type compensation.
Chinese patent CN101392427A discloses a kind of tension control system for three-dimensional loom, and the adjustment of its piece yarn tension is utilized The rotary action of bearing, the sliding surface between steel shaft and yarn is contacted and is changed into being in rolling contact realizing.But in the device, Power size is determined that especially high-performance fiber has damage to yarn in itself for rubbing action by frictional force size.While its Power is adjusted to passive type regulation, can not be satisfied with the regulation of great fluctuation process warp tension.
Chinese patent CN204875008U discloses a kind of warp tension adjusting means of loom, and the back rest is improved, The back rest is arranged on rocking arm, rocking arm is connected with balance staff, only increases the scope of activities and activity space of the back rest, but can not be real Now based on the actively servo-actuated compensation for becoming traverse heald frame mechanism.
Chinese patent CN102587010A discloses a kind of chain loom piece yarn tension adjusting means of multilayer carbon fiber angle, Installation tension adjusting bracket in frame, warp let-off roller is installed in adjusting bracket and idler roller is swung.By spring compression swing arm band Swing idler roller in movable pendulum arm support shaft compresses yarn, yarn is in tensioned state.It is similarly using mechanical passive way To adjust tension force.
And the weaving of three dimensional fabric has multiple openings relative to common fabric, in weaving process, for some fabric groups Knit, heald frame often there are multiple change in displacement according to the difference of fabric tissue so that the flexible quantitative change that warp thread fluctuates and warp thread needs Change greatly, tension fluctuation is big, especially in performance fibers high such as woven carbon fibres, because high-performance fiber is relative to common yarn It is almost nonelastic and not wear-resisting so that weaving process is extremely difficult.
Therefore the weaving of novel solid loom has not been suitable for using the yarn tension compensation method of Tradition Looms.
The content of the invention
The technical problem to be solved in the present invention is to overcome traditional passive compensation response not in time, causes average tension on warp Greatly, the problems such as increasing warp thread fluffs with mechanical friction, there is provided a kind of performance high such as carbon fiber for being well adapted for poor flexibility is fine The weaving of dimension, can meet opening more than three-dimensional loom, frequently become the warp tension benefit that the compensation of traverse is required with a piece of heald frame needs Repay device.
In order to solve the above-mentioned technical problem, the technical scheme is that providing a kind of based on three-dimensional loom fabric tissue pair The device that warp tension is compensated, three-dimensional loom includes warp beam, and warp beam warp thread out is by layering frame, through heald frame and latitude Yarn interweaves, and forms fabric;It is characterized in that:The device compensated to warp tension is included for moving up and down to heald frame Move up and down the warp thread for causing and extend or shrink the jockey pulley and its drive device for carrying out synchroballistic, each warp beam is corresponding One jockey pulley is set, and warp beam warp thread out is U-shaped to bypass jockey pulley, then by layering frame, through heald frame and weft yarn Interweave.
Preferably, the two ends of the jockey pulley are respectively arranged on a correction base, and correction base is on carrier;Carrier sets In on guide rail, carrier can be moved up and down along guide rail;Guide rail is located in the frame of three-dimensional loom;Electronic cylinder body and electronic for driving In frame, the push rod of electronic cylinder body is connected the servomotor of cylinder body work with carrier.
It is highly preferred that the push rod of the electronic cylinder body is connected by base plate with carrier.
It is highly preferred that when the servomotor drives the push rod of electronic cylinder body to move up and down, driving carrier to move up and down, carry Tool carries jockey pulley and is moved up and down along guide rail.
A kind of method compensated to warp tension based on three-dimensional loom fabric tissue, it is characterised in that:Using above-mentioned The device compensated to warp tension based on three-dimensional loom fabric tissue, control heald frame move up and down when, Synchronization Control Jockey pulley move up and down, heald frame is moved up and down cause warp thread elongation or contraction carry out synchroballistic.
Preferably, concretely comprise the following steps:
Step 1:Correspondence requires woven fabric organization chart and pegging plan, and correspondence fabric group is calculated according to fabric organization chart Knit warp thread elongation or amount of contraction that harness motion is caused;
Step 2:The warp thread elongation or amount of contraction caused according to correspondence fabric tissue harness motion, show that jockey pulley is moved Journey, and then draw the rotation direction and traverse of servomotor;
Step 3:The rotation direction and traverse of the servomotor drawn according to step 2, in integrated box movement, Synchronization Control Power roller carries out warp let-off compensation, so as to the warp thread elongation or amount of contraction active compensation that are caused to fabric tissue opening.
Compared with prior art, the present invention has the advantages that:
1st, tradition machinery compensation is changed into digitized compensation, improves three-dimensional loom intelligentized control method level;
2nd, using the servo-electric tension compensating mechanism of the compositions such as servo-electric push rod, guide rail, jockey pulley, machinery is simplified Structure, it is convenient to install;
3rd, the flexible active compensation of warp thread is realized, passive compensation response can be overcome not in time, cause average tension on warp big, The problems such as increasing warp thread fluffs with mechanical friction;The performance fiber weaving high such as the carbon fiber of poor flexibility can be well adapted for;Can be full It is open foot solid loom more, needs frequently to become the compensation requirement of traverse with a piece of heald frame;
4th, compensation way is positive synchroballistic, is conducive to improving the speed and precision for compensating, and reduces average tension on warp, Improve loom efficiency and fabric quality.
Brief description of the drawings
Fig. 1 is illustrated for what the present embodiment was provided based on the device that three-dimensional loom fabric tissue is compensated to warp tension Figure;
Fig. 2 is assembling schematic diagram between guide rail, carrier, correction base;
Fig. 3 is arranged on schematic diagram on three-dimensional loom for the compensation device that the present embodiment is provided;
Fig. 4 is a kind of fabric organization chart and upper machine pegging plan;A () is fabric organization chart;B () is upper machine pegging plan;C () is Gait schematic diagram;
Fig. 5 is that heald frame moves schematic diagram with jockey pulley.
Specific embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention Rather than limitation the scope of the present invention.In addition, it is to be understood that after the content for having read instruction of the present invention, people in the art Member can make various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited Scope.
Fig. 1 is illustrated for what the present embodiment was provided based on the device that three-dimensional loom fabric tissue is compensated to warp tension Figure, described includes guide rail 18, frame 19, carrier based on the device that three-dimensional loom fabric tissue is compensated to warp tension 20th, push rod 21, base plate 22, correction base 23, jockey pulley 24, electronic cylinder body 25, servomotor 26 etc..
The two ends of jockey pulley 24 are installed on correction base 23, and with reference to Fig. 2, correction base 23 is arranged on carrier 20; Carrier 20 is installed on the track 18, and carrier 20 can be moved up and down along guide rail 18;Guide rail 18 is bolted on frame On 19.Electronic cylinder body 25 and servomotor 26 are fixed in frame 19, and servomotor 26 drives electronic cylinder body 25 to work.Electric cylinder The push rod 21 of body 25 is bolted with base plate 22, and base plate 22 is bolted with carrier 20.
It will be seen from figure 1 that being compensated to warp tension based on three-dimensional loom fabric tissue of providing of the present embodiment Device is both sides symmetrical mechanism.When the driving push rod 21 of servomotor 26 is moved up and down, carrier 20 is driven to move up and down, carrier 20 Jockey pulley 24 is carried to be vertically moved about 18 along guide rail.
It is arranged on vertical based on the device that three-dimensional loom fabric tissue is compensated to warp tension by what the present embodiment was provided On body loom, as shown in Figure 3.Eight warp beams 1~8 carry out supplying yarn in feeding system of warp 11, and each warp beam is corresponding to install one Jockey pulley 24, jockey pulley 24 is moved and is controlled by the control system 10 of corresponding first driver 9 and first.Warp beam warp out Yarn 17 is U-shaped to bypass jockey pulley 24, then by layering frame, through heald frame 16 (including I, II, III, page IV 4) and thereon Single or multiple harness eyes, heald frame 16 moves and is controlled by the control system 12 of corresponding second driver 11 and second.Heald frame 16 move up and down forms shed open, and weft yarn 14 interweaves with warp thread 17, and weft yarn is formed fabric 13, fabric 13 for 14 dozens by reed 15 to fell Fell is deflected from by corresponding spooler again.
Wherein, jockey pulley 24, the first driver 9, the device of the composition of the first control system 10 are the base that the present embodiment is provided The device of active compensation is carried out to warp tension in three-dimensional loom fabric tissue.
When controlling heald frame to move up and down, Synchronization Control jockey pulley 24 moves up and down to move up and down heald frame on the warp for causing Yarn extends or contraction carries out synchroballistic.
Control method is as follows:
1st, correspondence requires woven fabric organization chart and pegging plan, and fabric organization chart is to determine to be followed in a fabric tissue Ring inner opening movement needs, can calculate correspondence fabric tissue harness motion and cause warp thread elongation or amount of contraction according to this.
2nd, warp thread elongation or amount of contraction are caused according to correspondence fabric tissue harness motion, draws jockey pulley traverse, while Also warp thread compensation device servomotor rotation direction and traverse have been drawn.
3rd, according to the rotation direction and traverse of the above-mentioned warp thread compensation device servomotor for calculating, opened in PC control When mouth heald frame servomotor is moved, by calculating, the corresponding speed of synchronism output and direction signal control jockey pulley carry out the warp let-off Compensation, so as to the warp thread elongation or amount of contraction active compensation that are caused to opening.
By taking a multilayer fabric Weaving Cycle as an example, with reference to tension compensating mechanism and control method, spy of the invention is illustrated The motion matching relationship sought peace between all parts.
A kind of multilayer fabric as shown in Figure 4, when first weft thread is introduced, the heald frame of page first and third lifts a height, Because Carbon Fiber Rigid is big, resilience is poor, and after completing the weaving of the first latitude, shed open changes;When introducing second weft yarn, the 2nd, the heald frames of page four lift a height, and the warp thread that page first and third heald frame is controlled returns to comprehensive prosposition and puts, and warp tension reduces, and leads Cause warp tension irregular, be open unclear, weaving is difficult.Therefore, when the heald frames of page second, four lift a height, for ensure through Yarn tension is constant, need to increase the warp run-in of warp thread on heald frame.When the heald frame of page first and third returns to comprehensive level state, to ensure warp thread Tension force is constant, and warp thread need to be made to retract.
From fabric tissue Fig. 2 (a), using 8 warp beams.One group of warp thread in each warp beam correspondence fabric tissue. Four heald frames need to be used, there are two harness eyes using straight arrangement, on heald.Fig. 2 (b) is fabric pegging plan, and Fig. 2 (c) is signal of gaiting Figure.Many heald heald frames lift the integral multiple that height must be distance between harness eye.
The fabric tissue when the first latitude is drawn, put and need to lift one by such as Fig. 2 (b), heald frame I and the relatively comprehensive prospositions of heald frame III Individual height, position B ' (such as Fig. 5) is moved to by position A ', draws warp thread elongation, calculates jockey pulley traverse, draws servomotor Traverse and rotation direction, are then synchronously sent signal control servomotor so that yarn is passed on heald frame corresponding by host computer Position A moves up to position B and compensates jockey pulley 1 ', 3 ', 5 ', 7 ' (such as Fig. 3) as shown in Figure 5;Heald frame II and heald frame IV In comprehensive level state, its correspondence jockey pulley position keeps constant.
When the second latitude is drawn, heald frame II and heald frame IV go up a latitude and lift a height relatively, and B ' is moved to by position A ', obtain Go out warp thread elongation, calculate jockey pulley traverse, draw servomotor traverse and rotation direction.Now should synchronously be sent by host computer Signal controls servomotor so that the corresponding jockey pulley 2 ', 4 ', 6 ', 8 ' of yarn is passed on heald frame and moves up to position by position A Put B;Heald frame I and heald frame III is put in comprehensive prosposition, a latitude is gone up relatively and declines a height, and position A ' is dropped to by position B ', is obtained Go out warp thread amount of contraction, calculate jockey pulley traverse, draw servomotor traverse and rotation direction.Now should synchronously be sent by host computer Signal controls servomotor so that corresponding jockey pulley 1 ', 3 ', 5 ', 7 ' moves downwardly to position A by position B.
When three weft yarns is drawn, heald frame I lifts two height, and position C ' is moved up to by position A ', show that warp thread is stretched Amount long, calculates jockey pulley traverse, draws servomotor traverse and rotation direction, now should be simultaneously emitted by signal control by host computer Servomotor so that corresponding jockey pulley 1 ', 5 ' moves up to position C and compensates by position A;The position of heald frame 2 keeps not Become, corresponding jockey pulley is not required to motion;Heald frame 3 moves to position B ' by position A ', draws warp thread elongation, calculates jockey pulley Traverse, draws servomotor traverse and rotation direction, signal control servomotor now should be synchronously sent by host computer so that phase Correspondence jockey pulley 3 ', 7 ' moves to position B by position A;Heald frame 4 moves to position A by position B, draws warp thread amount of contraction, meter Jockey pulley traverse is calculated, servomotor traverse and rotation direction is drawn, signal control servo electricity now should be synchronously sent by host computer Machine so that correspondence jockey pulley 4 ', 8 ' is moved to position A ' by position B '.
When the 4th weft yarn is introduced, heald frame I positions are moved to A ' by B ', and the height decline one that a latitude is gone up relatively is high Degree, draws warp thread amount of contraction, calculates jockey pulley traverse, draws servomotor traverse and rotation direction, now should be same by host computer Step sends signal control servomotor so that correspondence jockey pulley 1 ', 5 ' should move to position A by position B;Heald frame II is highly C ', goes up a latitude and improves a height relatively, now should be simultaneously emitted by signal control servomotor by host computer so that jockey pulley By position B shift positions C;Heald frame III is put at A in comprehensive prosposition, a latitude heald frame is gone up relatively and declines a height, show that warp thread is received Contracting amount, calculates jockey pulley traverse, draws servomotor traverse and rotation direction, now should be simultaneously emitted by signal control by host computer Servomotor so that correspondence jockey pulley need to be moved to position A from position B;Heald frame IV goes up a latitude and lifts a height relatively, is located at Position B ' places, draw warp thread elongation, calculate jockey pulley traverse, draw servomotor traverse and rotation direction, now should be by upper Position machine is simultaneously emitted by signal control servomotor so that correspondence jockey pulley rises to position B from position A.
When drawing the 5th weft yarn, heald frame I is moved to position C ' by the position B ' of a upper latitude, and one is lifted relative to a upper latitude Individual height, draws warp thread elongation, calculates jockey pulley traverse, draws servomotor traverse and rotation direction, now should be by upper Machine is simultaneously emitted by signal control servomotor so that correspondence jockey pulley rises to position C by position B;Heald frame II is by a upper latitude Position C ' drops to position B ', draws warp thread amount of contraction, calculates jockey pulley traverse, draws servomotor traverse and rotation direction, Signal control servomotor now should be synchronously sent by host computer so that correspondence jockey pulley 2 ', 6 ' synchronously drops to position by position C Put B;Heald frame III rises to position C ' by the position A ' of a upper latitude, draws warp thread elongation, calculates jockey pulley traverse, draws and watches Motor traverse and rotation direction are taken, now signal control servomotor should be simultaneously emitted by by host computer so that correspondence jockey pulley 3 ', 7 ' rise to position C by position A compensates;It is constant that heald frame IV goes up a latitude position relatively, without compensating.
When drawing six latitudes, heald frame I drops to position B ' by upper latitude position C ', draws warp thread amount of contraction, calculates jockey pulley Traverse, draws servomotor traverse and rotation direction, now should be simultaneously emitted by signal control servomotor by host computer so that right Jockey pulley 1 ', 5 ' is answered to move downwardly to position B by position C;Heald frame II goes up a latitude and rises to position C ' by position B ' relatively, draws Warp thread elongation, calculates jockey pulley traverse, draws servomotor traverse and rotation direction, now should be simultaneously emitted by letter by host computer Number control servomotor so that correspondence jockey pulley 2 ', 6 ' rises to position C by position B;Warp thread goes up a latitude relatively on heald frame III Position B ' is dropped to by position C ', warp thread amount of contraction is drawn, jockey pulley traverse is calculated, servomotor traverse and rotation side is drawn To, now should by host computer be simultaneously emitted by signal control servomotor so that correspondence jockey pulley 3 ', 7 ' position is dropped to by position C Put B;Heald frame IV rises to position C ' relative to a upper latitude by position B ', draws warp thread elongation, calculates jockey pulley traverse, draws Servomotor traverse and rotation direction, now should be simultaneously emitted by signal control servomotor so that correspondence jockey pulley by host computer 4 ', 8 ' rise to position C by position B.A fabric tissue circulation is now completed, is then weaved for the fabric tissue, jockey pulley Shuttling movement is compensated.
Experiment shows, after compensation device of the present invention is installed, active compensation, energy is carried out to warp tension based on fabric tissue Overcome traditional passive compensation response not in time, cause that average tension on warp is big, increase warp thread and the problems such as mechanical friction is fluffed, can The weaving of the performance fibers high such as the carbon fiber of poor flexibility is well adapted for, opening more than three-dimensional loom can be met, with a piece of heald frame need Frequently to become the compensation requirement of traverse.Be conducive to improving the speed and precision for compensating, reduce average tension on warp, improve loom effect Rate and fabric quality.
Warp tension compensation suitable for the stereo fabric of various institutional frameworks weaving process of the invention, especially for The weaving of the performance fibers high such as carbon fiber.The warp tension compensation on Tradition Looms is also applied for simultaneously.The alternative biography of the device Back beam device on system loom.

Claims (6)

1. a kind of device compensated to warp tension based on three-dimensional loom fabric tissue, three-dimensional loom includes warp beam, warp beam Warp thread (17) out interweaves by layering frame, through heald frame (16) and weft yarn (14), forms fabric;It is characterized in that:It is described The device compensated to warp tension includes moving up and down heald frame (16) for moving up and down the warp thread for causing elongation or receives The jockey pulley (24) and its drive device of row synchroballistic are retracted, each warp beam is corresponding to set a jockey pulley (24), warp Axle warp thread (17) out is U-shaped to bypass jockey pulley (24), then by layering frame, through heald frame (16) and weft yarn (14) hands over Knit.
2. a kind of device compensated to warp tension based on three-dimensional loom fabric tissue as claimed in claim 1, it is special Levy and be:The two ends of the jockey pulley (24) are respectively arranged on a correction base (23), and correction base (23) is located at carrier (20) On;On guide rail (18), carrier (20) can be moved up and down carrier (20) along guide rail (18);Guide rail (18) is located at three-dimensional loom In frame (19);Electronic cylinder body (25) and the servomotor (26) for driving electronic cylinder body (25) to work are located at frame (19) On, the push rod (21) of electronic cylinder body (25) is connected with carrier (20).
3. a kind of device compensated to warp tension based on three-dimensional loom fabric tissue as claimed in claim 2, it is special Levy and be:The push rod (21) of the electronic cylinder body (25) is connected by base plate (22) with carrier (20).
4. a kind of device compensated to warp tension based on three-dimensional loom fabric tissue as claimed in claim 2, it is special Levy and be:When the servomotor (26) drives the push rod (21) of electronic cylinder body (25) to move up and down, carrier (20) is driven up and down Mobile, carrier (20) carries jockey pulley (24) and is moved up and down along guide rail (18).
5. a kind of method compensated to warp tension based on three-dimensional loom fabric tissue, it is characterised in that:Using such as right It is required that the device compensated to warp tension based on three-dimensional loom fabric tissue described in 1~4 any one, in control heald frame (16) when moving up and down, Synchronization Control jockey pulley (24) move up and down, heald frame (16) is moved up and down cause warp thread elongation or Contraction carries out synchroballistic.
6. as claimed in claim 5 to be based on the method that three-dimensional loom fabric tissue is compensated to warp tension, its feature exists In concretely comprising the following steps:
Step 1:Correspondence requires woven fabric organization chart and pegging plan, and calculating correspondence fabric tissue according to fabric organization chart opens Warp thread elongation or amount of contraction that mouth motion is caused;
Step 2:The warp thread elongation or amount of contraction caused according to correspondence fabric tissue harness motion, show that jockey pulley (24) is moved Journey, and then draw the rotation direction and traverse of servomotor (26);
Step 3:The rotation direction and traverse of the servomotor (26) drawn according to step 2, when heald frame (16) is moved, synchronous control Jockey pulley (24) processed carries out warp let-off compensation, so as to the warp thread elongation or amount of contraction active compensation that are caused to fabric tissue opening.
CN201611213389.3A 2016-12-23 2016-12-23 The device and method that warp tension is compensated based on three-dimensional loom fabric tissue Expired - Fee Related CN106854792B (en)

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CN107644138A (en) * 2017-09-29 2018-01-30 东华大学 A kind of design method of woven small neat weave design software
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