CN1523148A - Weft bar preventing method and apparatus of multicolor weft insertion loom - Google Patents
Weft bar preventing method and apparatus of multicolor weft insertion loom Download PDFInfo
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- CN1523148A CN1523148A CNA031439241A CN03143924A CN1523148A CN 1523148 A CN1523148 A CN 1523148A CN A031439241 A CNA031439241 A CN A031439241A CN 03143924 A CN03143924 A CN 03143924A CN 1523148 A CN1523148 A CN 1523148A
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Abstract
To prevent occurrence of a weaving bar caused by difference of yarn kinds. The method for preventing a weaving bar comprises previously setting a motion aspect to be carried out by a loom every a kind of weft to be inserted and operating a weaving bar-preventing apparatus based on motion aspect corresponding to kind of weft positioned in cloth fell or kind of weft to subsequently be inserted until the loom is re-operated after cause of loom stop occurs. (C)2004,JPO&NCIPI.
Description
Technical field
The present invention relates to a kind of crosspiece (weft yarn braiding clouding) and prevent method and device, refer to it is that a kind of crosspiece that is used for optionally introducing the multicolor weft insertion loom of multiple weft yarn prevents method and device especially.
Background technology
At present, as the device that prevents to cause crosspiece because of caused by loom stop, for preventing crosspiece, during rerunning from stopping to, can make the operation that loom stipulates (with reference to day clear 57-51846 of disclosure patent of invention clear 54-106661 number, day disclosure patent of invention clear 61-63750 number, day disclosure patent of invention number, day disclosure patent of invention clear 61-124651 number).
As the device that prevents to cause crosspiece because of lead-in kind conversion, the main shaft that can make loom with corresponding to change warp shaft or the work beam of weaving cotton cloth after the speed rotation (with reference to day disclosure patent of invention clear 62-263347 number) of weft count.
Clear 54-106661 number described device of day disclosure patent of invention, receive the loom parking signal of expression caused by loom stop, because warp shaft has certain rotation on the lax direction of warp tension, thereby the cloth fell control that cloth fell displacement is forwards kept out of the way, and then prevent that the crosspiece that causes because of parking from producing.
Clear 61-63750 number described device of day disclosure patent of invention, be reasons such as reparation parking, make loom crawl or counter turning around, follow the forward or reverse of main shaft, warp shaft or work beam are just being transferred send or reverse and return 1 part of weft yarn, thereby carry out cloth fell forwards or the crawl of rear displacement carry counter-rotating to return, and then prevent that the crosspiece that causes because of parking from producing.
Clear 57-51846 number described device of day disclosure patent of invention, make the connection state starting of prime mover (main shaft motor) magnet exciting coil the time be in the high torque (HT) state, through after the transitional period, return to the starting torque conversion of nominal torque state, and then prevent that the crosspiece that causes because of parking from producing.
Clear 61-124651 number described device of day disclosure patent of invention, loom prestart, main shaft are after position of readiness is inverted to the predetermined angular place, and the starting loom improves the power of beating up when starting, and then prevent that the crosspiece that causes because of parking from producing.
Clear 61-124651 number described device of day disclosure patent of invention, because counter-rotating, big more to the anglec of rotation of beating up at first, the rotary speed of main shaft is also big more, weft yarn is compared with previous starting, is to beat up with the higher power of beating up.
Because the difference of fabric types, for example high-density fabric is introduced weft yarn and form the incomplete tissue thicker than desirable Density after being beaten up at first in the loom running, through introducing for several times and beating up, just forms the complete organization with ideal density thereafter.
Clear 62-263347 number described device of day disclosure patent of invention, be applied to multiple multicolor weft insertion loom, can select to set some weft counts, according to introducing latitude yarn number conversion weft count, with corresponding to change warp shaft or the work beam of weaving cotton cloth after the speed rotation of weft count, and then prevent to produce by the crosspiece that the conversion of line kind causes.
Clear 62-263347 number described device of day disclosure patent of invention, identical with clear 61-63750 number described device of day disclosure patent of invention, for repairing parking reason etc., loom crawl or counter turning around, follow the forward or reverse of main shaft, warp shaft or work beam are just being transferred send or reverse and return 1 part of weft yarn, thereby the crawl that carries out cloth fell displacement forward or backward carries counter-rotating to return, and then prevent that the crosspiece that causes because of parking from producing.
; clear 54-106661 number described device of day disclosure patent of invention; the rotation amount of the warp shaft just amount of keeping out of the way of fell has nothing to do with weft yarn kind (being the line kind); it is a certain value; owing to introduce kind (especially thickness) difference of weft yarn before stopping; the amount of keeping out of the way may produce excessive or not enough, and the result makes fell can not be in ideal position, thereby can not prevent to produce on the fabric crosspiece.
The clear 57-51846 of day disclosure patent of invention clear 61-63750 number, day disclosure patent of invention number, day disclosure patent of invention clear 61-124651 number and day clear 62-263347 of disclosure patent of invention number described device, the conveying capacity or the amount of returning are and the irrelevant definite value of line kind, owing to introduce weft yarn kind difference before stopping, the conveying capacity or the amount of returning may produce excessive or not enough, the result makes fell can not be in the appropriate location, thereby can not prevent to produce on the fabric crosspiece.In addition, the counter-rotating amount of loom is big more, and the easy more ideal position that departs from of cloth fell produces big crosspiece.
Clear 57-51846 number described device of day disclosure patent of invention, during the loom starting, even because of the high power of the beating up number of times that beats up is set more weft yarn and is mixed with the weft yarn that need not set the power of beating up or the number of times that beats up, the power of beating up and the number of times that beats up are still irrelevant with the line kind, it is a certain value, only can make the power of beating up and the number of times that beats up corresponding to arbitrary kind weft yarn in the two, the result still can not prevent to produce on the fabric crosspiece.
Clear 61-124651 number described device of day disclosure patent of invention, not exclusively tissue part occurs as crosspiece, and weft yarn physical propertys such as the thickness of its length (be weft yarn split line radical) and weft yarn, retractility are relevant in addition.This kind situation exists in not only running well, and exists too during the loom starting.When causing crosspiece by parking, also different, in fact strict according to the different crosspiece situations of the kind of line, as long as the beating operation state when setting starting not according to the kind of line just can not be eliminated crosspiece fully.
Because the mode of operation of multicolor weft insertion loom is not all changed according to weft yarn kind difference in the background technology, so can not prevent the generation of crosspiece.
Summary of the invention
The objective of the invention is to above-mentioned deficiency, propose a kind of method and device that can effectively prevent the generation of multicolor weft insertion loom crosspiece at prior art.
Above-mentioned purpose of the present invention is achieved through the following technical solutions: have rerun from stopping to during, can make at least one crosspiece that prevents crosspiece prevent that means from acting on the anti-locking apparatus of crosspiece on the loom, the mode of operation of loom is preestablished by introducing the weft yarn kind, during rerunning from stopping to, based on corresponding to the weft yarn of cloth fell or be about to the mode of operation of the weft yarn kind introduced, on loom, carry out crosspiece and prevent to operate.
The anti-locking apparatus of described crosspiece will be selected at least one operation to prevent to operate on the loom as crosspiece in following operation to carry out: (a) cloth fell displacement forwards, and the cloth fell that fell is kept out of the way is controlled; (b) the loom crawl is carried or is reversed and return, and makes the crawl of cloth fell displacement forward or backward carry counter-rotating to return; (c) with the torque starting higher than nominal torque, change by the starting torque that torque is recovered with motor for main shaft; (d) after the loom counter-rotating, make the starting of stepping back that it reruns; The anti-locking apparatus of described crosspiece is provided with the device that carries out cloth fell control, and mode of operation contains the wait amount of fell; The anti-locking apparatus of described crosspiece is provided with and carries out the device that crawl is carried or counter-rotating is returned, and mode of operation contains the displacement of fell; The anti-locking apparatus of described crosspiece is provided with the device that carries out the starting torque conversion, and mode of operation has the timing of returning nominal torque from high torque (HT); The anti-locking apparatus of described crosspiece is provided with the device of stepping back starting, and mode of operation contains idle period, and this idle period one of contains in counter-rotating stop angle and the idle running weft yarn number at least; Mode of operation based on corresponding to cloth fell or weft yarn kind that be about to introduce makes loom work.
Realize the device of said method, during rerunning from stopping to, at least one operation that prevents crosspiece is acted on the loom, comprise the mode of operation of loom by during introducing the predefined setting apparatus of weft yarn kind and rerunning from stopping to, with in the mode of operation of setting corresponding to the weft yarn of cloth fell or the mode of operation that is about to the weft yarn kind introduced be the control part that the basis makes loom work.
Compare with prior art, the present invention has following beneficial effect: can effectively prevent the generation of multicolor weft insertion loom crosspiece.
Description of drawings
Fig. 1 is the loom with the anti-locking apparatus of crosspiece of the present invention.
Fig. 2 is the logic diagram with the anti-locking apparatus loom of crosspiece of the present invention.
Fig. 3 is the logic diagram that crosspiece shown in Figure 2 is prevented locking apparatus warp let-off controller.
Fig. 4 is the logic diagram that the anti-locking apparatus of crosspiece shown in Figure 2 batches controller.
Wherein, 10 is loom; 14 are warp let-off axle; 12 is warp thread; 16 is rear roller; 18 is heald frame; 20 is reed; 22 is fell; 24 for weaving cotton cloth; 26 is cord roller; 28 are the clothes winding up roller; 30 is a pair of press roller; 32 is the batching axle; 34 are warp let-off motor; 36 is spindle drive motor; 38 is main shaft; 40 is motion changing mechanism; 44 is coiler motor; 46 is the coil diameter sensor; 50 is spindle controller; 52 are warp let-off controller; 54 for batching controller; 56 is main control unit; θ is the rotary angle signal of expression main shaft 38 anglecs of rotation; 58 is rotary encoder; 60 is the timing signal generator; TS1 is the output of warp thread and the timing signal that batches control of weaving cotton cloth for beat up timing signal, the TS2 of angle of expression; 62 is selective signal generator; S1 is the coil diameter signal of measuring; S2 selects signal for the weft yarn that weft yarn is introduced in expression; 64 is setting apparatus; S3 is setting value; S4 is the parking reason signal of expression parking reason; S3 is setting value; S4 is a parking reason signal; S5 is the loom control instruction; 66 are the running button; 68 is inching button; 70 is invert button; 72 is stop button; S10 is the tension force instruction; S11 is the running instruction; S12 is a cutoff command; S13 is the starting preparation instruction; S14 is the crawl instruction; S15 is the counter-rotating instruction; S16 is the starting torque instruction; S17 is the torque conversion instruction; S18 is the idle running command signal; S20 is the cloth fell control signal; 80 is operation control section; 82 is the cloth fell control part; 84 is tension pick-up; 86 is the tension force setting apparatus; 88 is subtraction portion; 90 is tension controller; 92 is addition portion; 94 is the base speed generator; 96 is the coil diameter retriever; 98 is converter; 98a is that converter 98 is often opened contact point; 100 is addition portion; 102 is driver; 104,106,108 and 110 is the drive amount signal generator; 112 is addition portion; 114 is retriever; 116 is reversible counter; 118 is encoder; 120 are the rotation control part; 122 is the cloth fell control part; 124 is the drive amount signal generator; 126 is addition portion; 128 is reversible counter; 132 is driver.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is further described.
Please refer to Fig. 1, the warp thread 12 that batches on warp let-off axle 14 of loom 10 arrives fell 22 from warp let-off axle 14 via rear roller 16, some heald frames 18 and reed 20.Weaving cotton cloth of being made into 24 utilizes cord roller 26 to arrive clothes windings up roller 28 from fell 22, exports batching axle 32 to by clothes winding up roller 28 and a pair of press roller 30, batched by batching axle 32.
Warp let-off axle 14 makes some warp thread 12 export with sheet by warp let-off motor 34 driven rotary.Each heald frame 18 utilizes the motion changing mechanism that rotatablely moves 40 that receives the main shaft 38 that is driven by spindle drive motor 36 and pumps, and makes warp thread 12 in the above-below direction upper shed.
Reed 20 utilization receives the motion changing mechanism that rotatablely moves 42 of main shafts 38 and shakes, and makes the weft yarn of introducing from the opening of warp thread 12 guide to fell 22.Clothes winding up roller 28 is made and is weaved cotton cloth 24 as the work beam use that exports batching axle 32 to by coiler motor 44 driven rotary.The rotation of coiler motor 44 can make warp thread have certain force of strain.
The warp thread quantity of batching by warp let-off axle 14 along with warp thread 12 from 14 outputs of warp let-off axle and reduce gradually.So the coil diameter of warp let-off axle 14 is measured by coil diameter sensor 46, the coil diameter signal S1 that measures supplies with loom control device.
Please refer to loom control device shown in Figure 2, spindle controller 50, warp let-off controller 52 and batch the control that controller 54 is subjected to the main control unit 56 of loom make spindle drive motor 36, warp let-off motor 34 and coiler motor 44 rotations respectively.Spindle controller 50, warp let-off controller 52 and batch controller 54 and constitute the anti-locking apparatus of crosspiece with main control unit 56.
The rotary angle signal θ 1 of expression main shaft 38 anglecs of rotation with rotary encoder 58 that main shaft 38 links to each other in generate, supply warp let-off controller 52, batch controller 54, main control unit 56 and timing signal generator 60.
Timing signal generator 60 arrives predetermined angle, will produce various timing signal TS1 and TS2 based on rotary angle signal θ 1.The beat up timing signal TS1 of angle (0 °) of expression supplies with selective signal generator 62.The timing signal TS2 that batches control that is used for the output of warp thread and weaves cotton cloth supplies with controller 52 and 54.
Selective signal generator 62 will represent that the weft yarn selection signal S2 that introduces weft yarn supplies with controller 52,54 and main control unit 56.Weft yarn selects signal S2 for example to select the number of weft yarn to deposit memory body in by the default style that is made into, the timing signal TS1 counting of input is calculated introducing latitude yarn number, read the latitude yarn number of expression lead-in kind with count value (introducing the latitude yarn number) from memory body, corresponding therewith signal is selected signal S2 output as weft yarn.
Main control unit 56 also receives weft yarn and selects signal S2, defaults in the various setting value S3 in the setting apparatus 64 and the parking reason signal S4 of expression parking reason.The various setting value S3 that default in the setting apparatus 64 are the various data that prevent about crosspiece, also supply with warp let-off controller 52 and batch controller 54.Parking reason signal S4 is from the checkout gear output of various cracked ends sensors such as weft detector, menopause tablet device etc.
As the example of setting value S3, there are thereafter the data (drive amount) of each state of data, the loom of the control that the data of beating up (filling density) that are used for weft yarn of the controller 50,52,54 of explanation wait reach the various data that starting, crosspiece about loom prevents to operate etc.These data based weft yarn kinds are set.
Filling density and drive amount are applied to controller 50,52,54.The starting data include starting torque (the initial torque of motor), step back starting data (the counter-rotating stop angle during starting), dally and start data (the counter-rotating stop angle during starting, idle running weft yarn number) etc., all set, be applied on the main control unit 56 according to the weft yarn kind.
So during main control unit 56 rerunned from stopping to, based on the data that setting apparatus 64 sets, the weft yarn kind during according to starting was carried out at least one in following (a) to (d) operation.
(a) cloth fell displacement forward, the cloth fell that fell is kept out of the way are controlled in output control part 52 and batch on the controller 54 and carry out.As concrete data, provide the displacement (amount of keeping out of the way) of various line cloth fells.
(b) the loom crawl is carried or is reversed and return, and makes the crawl of cloth fell displacement forward or backward carry counter-rotating to return implementation on controller 50,52,54.As concrete data, provide the displacement (the output quantity amount of returning) of various line cloth fells.
(c) main shaft starts with high torque (HT) with motor, and the starting torque that returns to nominal torque then is transformed on the controller 50,52,54 to be carried out.As concrete data, provide various lines return nominal torque from high torque (HT) timing.
(d) after the loom counter-rotating, make that it reruns step back to start on spindle controller 50 carried out.As concrete data, provide the idle period (counter-rotating stop angle, idle running weft yarn number) of various lines.
Main control unit 56 links to each other with some buttons of the various instructions of manual input, for example: make loom running running button 66, make the loom crawl inching button 68, make the loom counter-rotating invert button 70, make the stop button 72 of caused by loom stop etc.
Main control unit 56 is according to selecting signal S2, setting value S3, parking reason signal S4, button instruction and be made into these default various data such as style, and the various devices of control loom make loom work or stop where necessary.
As device, the drive unit, weft inserting apparatus, shedding motion, beating device, weft detector of the output device of warp thread, the batching apparatus of weaving cotton cloth, main shaft etc. are arranged by main control unit 56 control.So main control unit 56 o controllers 50,52,54 are introduced control device, shedding motion, beating device, various control signals such as weft detector.
Main control unit 56 utilizes motor 34,36,44 to carry out crosspiece and prevents operation when caused by loom stop or when starting control motor 34,36,44.This control also be used for being set in setting apparatus 64 drive amount, starting torque, step back starting data, idle running starting data etc.
So, after main shaft 38 is inverted to set angle (stop angle of promptly reversing), to set starting torque entry into service (just changeing).In addition, when utilizing idle running to start, loom is only set the weft yarn number and not after the running of wefting insertion (lost motion operation), is followed the normal operation of wefting insertion again.
For example, press loom running button 60, the main control unit 56 preparation instruction S13 that at first will turn round exports controller 52,54 to, the regulation control operation when controller 52,54 is carried out looms and started.
Then, the ON running instruction S11 that main control unit 56 output makes loom work is to controller 50,52,54 and not shown weft inserting apparatus, shedding motion etc., in the time of these device runnings, motor 36 is just being changeed, begin keeping out of the way of loom based on the starting method of stipulating.In addition, main control unit 56 outputting parking reasons, be made into operational situation signals such as parameter to controller 50,52,54.
Thereafter, main control unit 56 receives parking reason signal S4 from various testing fixtures, when running instruction this moment S11 becomes OFF, the cutoff command S12 that exports the ON that makes caused by loom stop is to controller 50,52,54, regulation control operation when making these controller 50,52,54 operation caused by loom stop makes caused by loom stop.
To be described as follows instruction below: the tension force instruction S10 of the goal tension of indication warp thread, make the running instruction S11 of loom running, make the cutoff command signal S12 of caused by loom stop, the starting preparation instruction S13 that the running of indication loom is prepared, make the crawl instruction S14 of motor 36 crawls, make the counter-rotating instruction S15 of motor 36 counter-rotatings, starting torque instruction S16, torque conversion instruction S17, the loom control instruction S5 of the operational situation signal of idle running command signal S18 and control expression loom operating condition.
Tension force command signal S10 represents the tension force that warp thread is suffered.During starting and the running in the tension force command value all default in the setting apparatus 64 according to the line kind.
Starting preparation instruction S13 restarts for making loom, in a period of time of pressing running button 66, be output, contain the mobile backward cloth fell revisal instruction of ormal weight that controller 52,54 utilizes motor 34,44 that cloth fell is set with setting apparatus 64 in addition.Cloth fell revisal amount defaults in the setting apparatus 64 according to the kind of various lines.
Running instruction S11 according to the operational situation of loom with ON or OFF form output signal.Running instruction S11 for making the loom entry into service, exports with the ON state after carrying out each cloth fell revisal according to running preparation instruction S13 controller 52,54.In addition, running instruction S11 exports with the OFF state for making caused by loom stop when pressing stop button 72 or receive stop sign S3 such as wefting insertion stops, cracked ends from each checkout gear.
Caused by loom stop instruction S12 is after the stop button 72 of correspondence is pressed or received stop sign S4 such as wefting insertion stops, cracked ends from each checkout gear, becomes from operating condition for making loom that dead ship condition exports.
Crawl instruction S14 and counter-rotating instruction S15 are respectively after pressing corresponding button 68 and 70, export for making motor 34,36 or 38 crawls and counter-rotating.Point momentum and counter-rotating amount default in the setting apparatus 64 according to the kind of various lines.
The torque that spindle drive motor 36 was produced when starting torque instruction S16 represented to start.The nominal torque height of this torque ratio spindle drive motor 36.High torque value defaults in the setting apparatus 64 according to the kind of various lines.
Conversion instruction S17 be when starting the nominal torque that produces of (during the running beginning) spindle drive motor 36 be transformed into the nominal torque timing according to torque instruction S16 indication from high torque (HT) and produce.This timing defaults in the setting apparatus 64 according to the kind of various lines.
Produce when wefting insertion did not turn round when idle running command signal S18 was starting.The idle running number defaults in the setting apparatus 64 according to the kind of every kind of line.
Spindle controller 50 utilizes the various control signals and the instruction that receive from main control unit 56 to control main shaft 36.Main control unit 56 is when running stops, the main shaft of driving is shut down, when crawl or reverse, make spindle drive motor 36 with the low velocity forward or reverse, when loom starts, for making spindle drive motor 36 produce the regulation starting torque, starting torque instruction S16 and torque conversion instruction S17 are in the time of spindle controller 50 outputs, and S18 is from outputs such as weft detector, weft inserting apparatuss for the idle running command signal.
Specifically comprise about the torque conversion in when starting spindle drive motor 36 the spiral connection state conversion and utilize transverter to carry out Current Control etc.What situation no matter occurs, spindle drive motor 36 can both obtain torque big when running well in when beginning starting, drops to the torque when running well thereafter again.
When pressing inching button or invert button, crawl instruction or counter-rotating instruction input to spindle controller 50, and spindle controller 50 makes the electric current of correspondence export motor 36 to for making loom main shaft and just change and reversing.In addition, press the running button, the running instruction inputs to spindle controller 50, and spindle controller 50 just changes at a high speed for making loom main shaft, makes corresponding electric current export motor 36 to.
One of in the weft yarn kind that the kind of so-called line is meant cloth fell before the caused by loom stop and the initial weft yarn kind of introducing in starting back.This line kind can by sensor measure also can be when stopping the latitude wire size be made into data and learn at main control unit 50.
So when caused by loom stop or starting, the mode of operation of loom (some momentum, counter-rotating amount, idle running number etc.) can be adjusted according to weft yarn of introducing before the caused by loom stop or the weft yarn kind that is about to introduce, and prevents that crosspiece from producing.
Please refer to Fig. 3, warp let-off controller 52 comprise in the loom operation process operation control section 80 of control warp let-off motor and in caused by loom stop or starting control the cloth fell control part 82 of warp let-off motor 34 when preparing for the position of control fell 22 on the moving direction of warp thread 12.
Operation control section 80 is provided with the tension control system of eliminating the tension force deviation with respect to the basic rotary speed of loom, and the speed command of exporting according to tension control system makes warp let-off motor 34 rotate with corresponding speed.
Specifically, the actual tension that operation control section 80 will act on warp thread utilizes tension pick-up 84 to measure, the deviation of the goal tension that actual tension of measuring and tension force setting apparatus 86 set is drawn by subtraction portion 88, the tension force deviation feeding tension controller 90 that draws.The tension force deviation deducts actual value from desired value and obtains.
Tension Control portion 90 is the circuit that are made of PID controller etc., and Shu Ru tension force deviation is calculated the speed compensating value certainly, as signal, exports some input terminals of addition portion 92 to.
During loom runs well, base speed generator 94 plays a role, various data such as signal are selected in the filling density that utilizes main control unit 56 input, loom rotation number, filling density based on setting apparatus 64, make other input terminals that export addition portion 92 corresponding to the rate signal of the basic rotary speed of warp let-off motor 34 to.
Addition portion 92 is with two input signal additions, and the signal after the addition exports coil diameter retriever 96 to.Coil diameter retriever 96 will be from the input signal of addition portion 88 according to remaining warp thread amount (coil diameter) revisal of coil diameter signal S1, often opens some input terminals that contact point 98a exports addition portion 100 to this as what speed command signal utilized converter 98.
Addition portion 100 will export driver 102 to through addition portion 100 from the speed command signal of contact point 98a input.
Driver 102 is the amplification loops that make warp let-off motor 34 rotation corresponding to input signal, if the input signal of addition portion 100 for just, warp let-off motor 34 is just changeing, if for negative, warp let-off motor 34 reverses.So the tension force of warp thread and cloth fell can keep setting and assigned position respectively.
Cloth fell controller 82 is when wefting insertion, when drive amount signal generator 104,106,108 and 110 receives weft yarns and selects signal S2, receive crawl instruction S14, counter-rotating instruction S15, running instruction S11 and starting preparation instruction S12 in the loom control instructions respectively at drive amount signal generator 104,106,108 and 110 when caused by loom stop or starting.In addition, drive amount signal generator 104,106,108 and 110 receives the warp thread drive amount data that setting apparatus 64 sets from main control unit 56 respectively.
Drive amount signal generator 104,106,108 and 110 can be respectively as output control part, counter-rotating control part, cloth fell control part and keep out of the way control part and use, be drive amount such as the amount of movement of the basis output quantity of calculating warp shaft, the amount of returning, cloth fell and the amount of keeping out of the way with the input signal, the drive amount of calculating is supplied with addition portion 112.Drive amount signal generator 104 and 106 both also can be used as and export/return control part and use.
The conveying capacity of warp shaft and the amount of returning select signal S2 to calculate as the drive amount of corresponding weft yarn according to the weft yarn of the main shaft crawl or the once generation of reversing respectively.So cloth fell is at the main shaft crawl or reverse time a time, revisal is carried out in the displacement that produces ormal weight to prescribed direction.The output quantity and the amount of returning all default in the setting apparatus 64 according to the line kind.
The amount of movement of cloth fell is the drive amount that fell is forwards kept out of the way in the inertia rotation when caused by loom stop, as selecting the drive amount of signal S2 to calculate corresponding to the weft yarn with the input of cutoff command S12 not.The amount of movement of cloth fell defaults in the setting apparatus 64 according to the kind of every kind of line.
The amount of keeping out of the way is to prepare the drive amount of revisal cloth fell as the starting before the loom entry into service, as selecting the drive amount of signal S2 to calculate corresponding to the weft yarn with the input of starting order S13 not.The amount of keeping out of the way defaults in the setting apparatus 64 according to the line kind.
The drive amount (in other words, the crosspiece that carries out prevents operation) that substitutes each generation all has this situation of drive amount signal generator, and a drive amount signal generator can produce some kinds of drive amount.
Main control unit 56 is provided with software program, can utilize in the some starting methods of setting apparatus 64 selections any when the running button is pressed.Starting method as loom, include for the starting method (stepping back starting) of the common starting method that begins general running, entry into service behind present starting position counter-rotating predetermined angular and step back to start and further develop, than the anti-above entry into service afterwards of turning around in present starting position, before just forwarding the counter-rotating number of turns to, the not wefting insertion running of dallying enters the starting method (idle running starting) of the normal operation of wefting insertion then.
When no matter which kind of starting method, main control unit 56 all can be selected about loom running beginning, with the starting torque of motor 36 or similarly starting torque turn back to the start-up function state of the conversion calendar scheduling of normal operation torque.Setting apparatus 64 can rise according to the conversion calendar scheduling that the kind of weft yarn is set these starting methods, starting torque, starting torque and employ control data.
When main control unit 56 is connected with running button 66, can imports main shaft angle signal θ and weft yarn and select signal S2.
Suppose that starting method is when stepping back starting or idle running starting, one presses running button main control unit 56 at first reads the information of selecting the starting method of signal S2 corresponding to weft yarn, and the set information of counter-rotating stop angle, idle running weft yarn number etc. is read from setting apparatus.
Then, main control unit 56 is measured loom main shaft angle signal θ 1, and simultaneously, according to program and setting value, output counter-rotating instruction makes main shaft be inverted to corresponding counter-rotating stop angle, the instruction of output running thereafter.
Secondly, main shaft control device 56 is according to setting value, just forward to identical with the number of times that reverses before, output idle running instruction, carry out the idle running running of wefting insertion after, the idle running instruction is OFF, carries out the normal operation of wefting insertion.
When main shaft control device 56 is read corresponding line kinds of information, also read the control data of starting torque, starting torque conversion calendar scheduling, the starting torque selection instruction exports spindle controller 50 to, when reaching the conversion timing that the main axis rotation angle reads, spindle controller 50 produces starting torques conversion timing signals.So spindle controller 50 will turn back to the normal operation torque for the torque of motor 36.Consequently above-mentioned (b), (c) reach and (d) are implemented.
After drive amount signal generator 104,106,108 and 110 receives crawl instruction S14, counter-rotating instruction S15, the cutoff command S12 among the loom control instruction S5 respectively and starts preparation instruction S15, all select the output state of signal S2 according to weft yarn, to be that calculate on the basis with the setting value corresponding to the drive amount of the weft yarn kind of selection mode, and export these to addition portion 112 as speed command signal.
Crosspiece prevents to operate according to the speed command signal of output and operates.The signal of each drive amount semaphore is not produced simultaneously, but selects one to produce when each crosspiece prevents to operate implementation.
Each drive amount is by 112 additions of addition portion.Drive amount after the addition is carried out revisal at coil diameter retriever 114 according to the remaining warp thread amount (coil diameter) of coil diameter signal S1.Drive amount after the revisal is supplied with the addition terminal of reversible counter 116 with the pulse signal output as the drive amount signal that makes the rotation of warp let-off motor 34 angles.
The subtraction terminal of reversible counter 116 receives the rotation amount signal that be output into pulse type from warp let-off motor with encoder 118 corresponding to the rotation amount of warp let-off motor.When counter 116 is counted drive amount, use the rotary angle signal θ 2 of the warp let-off motor of supplying with encoder 118 from warp let-off motor 34 to subtract each other and draw.Counter 116 is that its value utilizes the normally closed contact point 98b of repeater 98 to export other input terminals of addition portion 100 to corresponding to the speed command signal of count value output.
Warp let-off motor 34 is reached certain force of strain according to the signal that the tension control system in operation control section 80 generates in the normal operation of loom.When caused by loom stop or starting, signal that warp let-off motor 34 generates according to the tension control system of operation control section 80 and the cloth fell of reaching regulation in the drive amount of the corresponding line kind of cloth fell control part 82 generations.
Consequently, when caused by loom stop or starting, the mode of operation of loom (warp tension and cloth fell) is adjusted according to the kind of the weft yarn of introducing before the caused by loom stop, can prevent the generation of crosspiece.
Please refer to Fig. 4, batching controller 54 is included in the loom running, the rotation control part 120 of the rotation amount of control coiler motor 44 reaches in caused by loom stop or starts when preparing, and controls the cloth fell control part 122 of coiler motor 44 for the position of control fell 22 on the moving direction of warp thread 12.
The various data that operation control section 120 selects signal etc. to be used to calculate the base speed of coiler motor 44 rotation number of the filling density in the setting apparatus 64, loom, filling density transfer to drive amount signal generator 124 from main control unit 50.
Base speed can make the basic rotary speed rotation of coiler motor 44 with main shaft during the normal operation of loom, keep cloth fell on assigned position with warp let-off controller 52.Various data are identical with the data of the base speed generator of supplying with warp let-off controller 52.
Operation control section 120 is during loom runs well, receive rotary angle signal θ 1, based on rotary angle signal and the various data that receive, with some input terminals of the pulsed drive amount instruction supply addition portion 126 of the base speed of corresponding coiler motor 44.
Addition portion 126 will import the drive amount instruction and the cloth fell control signal S20 addition that is input to the pulse type of its other terminals from cloth fell control part 1 22 of its some terminals, the pulsed drive amount signal after the addition be exported to the addition terminal of reversible counter 128.
When counter 128 was counted the cloth fell control signal, the rotary angle signal θ 3 of the coiler motor 44 that count value and coiler motor are supplied with encoder 130 subtracted each other.The value of counter 128 is supplied with driver 132.
Driver 132 is the amplification loops that make coiler motor 44 rotation corresponding to input signal, and as for just, coiler motor 44 is just changeing from the signal of counter 128 inputs, and as for negative, coiler motor 44 reverses.So cloth fell can remain on assigned position.
Cloth fell control part 122 is identical with the formation of the cloth fell control part 82 of warp let-off controller 52, has same purpose.So cloth fell control part 122 receives various data from main control unit 56 equally with cloth fell control part 82, according to the weft yarn of introducing before the caused by loom stop or be about to introduce the kind output cloth fell control signal S20 of weft yarn.
The signal that coiler motor 44 produces according to operation control section 120 in the normal operation of loom reaches the tension force or the cloth fell of regulation., caused by loom stop or when starting, the signal that warp let-off motor 34 generates according to the tension control system of operation control section 80 and tension force or the cloth fell of reaching regulation in the drive amount of the corresponding line kind of cloth fell control part 122 generations.
Consequently, in caused by loom stop or when starting, the mode of operation of loom (warp tension and cloth fell) according to the weft yarn of introducing before the caused by loom stop or the kind that is about to introduce weft yarn adjust, prevent the generation of crosspiece.
The embodiment that is located at the various data in the setting apparatus 64 is shown in table 1, table 2 and table 3.
With anti-locking apparatus A of symbol " zero " expression crosspiece and B work, do not work in the table 1 with symbol " * " expression.
What table 2 was represented is the example of setting the mode of operation (drive amount) of crosspiece anti-locking apparatus A, B, C and D.The numerical value of the expressions such as " a1 " of mark in the table 2 has nothing in common with each other.
What table 3 was represented is the example that table 1 and table 2 combination are implemented.In table 3, it is identical with table 1 and table 2 that symbol " zero " reaches " * " implication.
Table 1
| Crosspiece is prevented locking apparatus | Weft yarn kind (thickness) | |
| Slightly ← → thin | ||
| Weft yarn 1 | Weft yarn 2 | |
| 1) device A_ cloth fell control | ??○ | ????× |
| 2) device B_ steps back starting | ??○ | ????○ |
Table 2
| Crosspiece is prevented locking apparatus | Weft yarn kind (thickness) | ||
| Slightly ← → thin | |||
| Weft yarn 1 | Weft yarn 2 | Weft yarn 3 | |
| 1) device A_ cloth fell control | ??a1 | ??a2 | ??a3 |
| 2) device B_ steps back startup (main shaft counter-rotating amount) | ??b1 | ??b2 | ??b3 |
| 3) (conveying capacity/amount of returning) returned in the conveying/counter-rotating of device C_ crawl | ??c1 | ??c2 | ??c3 |
| 4) device D_ starting torque conversion (torque conversion timing) | ??d1 | ??d2 | ??d3 |
Table 3
| Crosspiece is prevented locking apparatus | Weft yarn kind (thickness) | ||
| Slightly ← → thin | |||
| Weft yarn 1 | Weft yarn 2 | Weft yarn 3 | |
| 1) device A_ cloth fell control | ??○ | ??× | ??× |
| Cloth fell control (conveying capacity) | ??a1 | ??- | ??- |
| 2) device B_ steps back starting | ??○ | ??○ | ??× |
| Step back starting (main shaft counter-rotating amount) | ??b1 | ??b2 | ??- |
The present invention also can change by the following stated mode.
In the above-described embodiments, to be the output state of selecting signal S2 according to weft yarn when pressing prevent state according to the weft yarn kind conversion crosspiece of cloth fell when the caused by loom stop with the running button, and it is replaceable for preventing state according to the initial weft yarn kind conversion crosspiece of introducing in starting back.
Specifically, when pressing the running button, utilize selective signal generator at first to read to introduce the Next weft yarn choice situation of weft yarn number (number), select signal to export kind control device and each controller etc. to this as weft yarn temporarily, the weft yarn choice situation of introducing during identification starting back initial wefting insertion prevents the mode of operation of operating thereby identification realizes crosspiece.
The invention is not restricted to above-mentioned embodiment, only otherwise break away from purport, can do numerous variations.
Claims (9)
1. the crosspiece of a multicolor weft insertion loom prevents method, have rerun from stopping to during, can make at least one crosspiece that prevents crosspiece prevent that means from acting on the anti-locking apparatus of crosspiece on the loom, it is characterized in that: the mode of operation of loom is preestablished by introducing the weft yarn kind, during rerunning from stopping to, based on corresponding to the weft yarn of cloth fell or be about to the mode of operation of the weft yarn kind introduced, on loom, carry out crosspiece and prevent to operate.
2. crosspiece as claimed in claim 1 prevents method, it is characterized in that: the anti-locking apparatus of described crosspiece will be selected at least one operation to prevent to operate on the loom as crosspiece in following operation to carry out: (a) cloth fell displacement forwards, and the cloth fell that fell is kept out of the way is controlled; (b) the loom crawl is carried or is reversed and return, and makes the crawl of cloth fell displacement forward or backward carry counter-rotating to return; (c) with the torque starting higher than nominal torque, change by the starting torque that torque is recovered with motor for main shaft; (d) after the loom counter-rotating, make the starting of stepping back that it reruns.
3. crosspiece as claimed in claim 2 prevents method, it is characterized in that: the anti-locking apparatus of described crosspiece is provided with the device that carries out cloth fell control, and mode of operation contains the wait amount of fell.
4. crosspiece as claimed in claim 2 prevents method, it is characterized in that: the anti-locking apparatus of described crosspiece is provided with and carries out the device that crawl is carried or counter-rotating is returned, and mode of operation contains the displacement of fell.
5. crosspiece as claimed in claim 2 prevents method, it is characterized in that: the anti-locking apparatus of described crosspiece is provided with the device that carries out the starting torque conversion, and mode of operation has the timing of returning nominal torque from high torque (HT).
6. crosspiece as claimed in claim 2 prevents method, it is characterized in that: the anti-locking apparatus of described crosspiece is provided with the device of stepping back starting, and mode of operation contains idle period, and this idle period one of contains in counter-rotating stop angle and the idle running weft yarn number at least.
7. crosspiece as claimed in claim 2 prevents method, it is characterized in that: the mode of operation based on corresponding to the weft yarn kind of cloth fell makes loom work.
8. crosspiece as claimed in claim 5 prevents method, it is characterized in that: the mode of operation based on corresponding to the weft yarn kind that is about to introduce makes loom work.
9. the crosspiece of a multicolor weft insertion loom is prevented locking apparatus, during rerunning from stopping to, at least one operation that prevents crosspiece is acted on the loom, it is characterized in that: comprise the mode of operation of loom by during introducing the predefined setting apparatus of weft yarn kind and rerunning from stopping to, with in the mode of operation of setting corresponding to the weft yarn of cloth fell or the mode of operation that is about to the weft yarn kind introduced be the control part that the basis makes loom work.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JPJP20337811 | 2003-02-17 | ||
| JP200337811 | 2003-02-17 | ||
| JP2003037811A JP2004244767A (en) | 2003-02-17 | 2003-02-17 | Method and apparatus for preventing weaving bar in multicolor weft-inserting loom |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1523148A true CN1523148A (en) | 2004-08-25 |
| CN1296541C CN1296541C (en) | 2007-01-24 |
Family
ID=33022502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031439241A Expired - Fee Related CN1296541C (en) | 2003-02-17 | 2003-07-30 | Weft bar preventing method and apparatus of multicolor weft insertion loom |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2004244767A (en) |
| CN (1) | CN1296541C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133279B (en) * | 2015-07-22 | 2017-03-08 | 江南大学 | A kind of detection method of fabric crosspiece |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2671508B2 (en) * | 1989-06-19 | 1997-10-29 | 株式会社豊田自動織機製作所 | Method for preventing weft generation in a multicolor loom |
| US5224520A (en) * | 1990-11-19 | 1993-07-06 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Weaving bar prevention in a jet loom |
| JP2611696B2 (en) * | 1990-12-14 | 1997-05-21 | 株式会社豊田自動織機製作所 | Method of preventing weaving steps in jet looms |
-
2003
- 2003-02-17 JP JP2003037811A patent/JP2004244767A/en active Pending
- 2003-07-30 CN CNB031439241A patent/CN1296541C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004244767A (en) | 2004-09-02 |
| CN1296541C (en) | 2007-01-24 |
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