CN115339963B - Intelligent control method and device for unwinding length of multiple warp beams of interconnected high-precision sizing machine - Google Patents
Intelligent control method and device for unwinding length of multiple warp beams of interconnected high-precision sizing machine Download PDFInfo
- Publication number
- CN115339963B CN115339963B CN202210997996.2A CN202210997996A CN115339963B CN 115339963 B CN115339963 B CN 115339963B CN 202210997996 A CN202210997996 A CN 202210997996A CN 115339963 B CN115339963 B CN 115339963B
- Authority
- CN
- China
- Prior art keywords
- warp
- unwinding
- length
- braking force
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000004513 sizing Methods 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 claims abstract description 18
- 238000001514 detection method Methods 0.000 claims description 31
- 238000004364 calculation method Methods 0.000 claims description 16
- 238000003860 storage Methods 0.000 claims description 9
- 238000009825 accumulation Methods 0.000 claims description 5
- CLOMYZFHNHFSIQ-UHFFFAOYSA-N clonixin Chemical compound CC1=C(Cl)C=CC=C1NC1=NC=CC=C1C(O)=O CLOMYZFHNHFSIQ-UHFFFAOYSA-N 0.000 claims description 5
- 230000001186 cumulative effect Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims 3
- 239000002699 waste material Substances 0.000 abstract description 5
- 230000033228 biological regulation Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 abstract 1
- 230000006698 induction Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
- B65H63/08—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/38—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
- B65H59/384—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension using electronic means
- B65H59/387—Regulating unwinding speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
Landscapes
- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Warping, Beaming, Or Leasing (AREA)
Abstract
The invention relates to an intelligent control method and device for the consistency of the unwinding length of multiple beams of a sizing machine, which are used for timely adjusting the braking force of the beams according to the deviation of the warp allowance on each beam by monitoring the warp allowance on each beam in real time in the unwinding process, so that the deviation rate of the warp allowance on each beam fluctuates within a small range, the unwinding quantity of the warp on each beam can be controlled to keep basically consistent, the aim of synchronous unwinding is realized, and the problem of inaccurate control of the tension of each warp in the unwinding process is solved. Because the braking force of the warp beams is continuously regulated in the unwinding process, the accumulated error generated by any warp beam in one regulation period can be corrected in the next or next several periods in the production process, so that the continuous expansion of the accumulated error is avoided, and the problem of resource waste caused by a large amount of residual warp yarns at the end of the production batch is avoided.
Description
Technical Field
The invention belongs to the technical field of textile equipment, and particularly relates to an intelligent control method and device for unwinding lengths of multiple warp beams of an interconnection type high-precision sizing machine.
Background
Sizing machines are textile production equipment used for sizing warp yarns required for weaving. In the sizing process, warp yarns are firstly unwound from a plurality of warp beams arranged on a warp beam frame, then conveyed to a sizing tank to absorb sizing liquid, enter a drying room for drying, and finally wound on one warp beam at a head. Wherein each beam on the beam frame is produced by a warping machine, and hundreds to thousands of warp yarns are wound on each beam in parallel. During the production process, the winding length and the winding tension of the warp yarn of each warp beam are precisely controlled by a warping machine.
Currently, each beam is configured to be fixed to the beam frame by bearings, the main unwinding power of which is provided by the headstock, each beam being equipped with a braking device for controlling the tension of the warp yarns on each beam when unwinding. Theoretically, when the tension of each beam is configured to a uniform level, the unwinding length of each beam is uniform. However, in actual production, the tension arrangement of each brake device is difficult to be consistent due to the mechanical state and the manual operation error, which results in that the unwinding length of each warp beam always varies. This phenomenon causes uneven warp tension to lower the manufacturing efficiency on the one hand, and causes a large amount of warp to remain on the warp beam at the end of the production batch to cause resource waste on the other hand.
In order to solve the above problems, patents such as a pneumatic control device for constant tension electronic unwinding of warp yarn of sizing machine (application number 200510040762.5), a tension control device and a tension control method of a sizing machine sending device (202110762964. X) and the like all propose to adopt a tension detection device to detect the warp yarn tension correspondingly output by each warp beam, and use a closed loop control system to dynamically adjust the braking force of a braking device. The uniformity of unwinding of each beam is intended to be achieved by tension control of the unwinding warp. However, this approach has several drawbacks: 1) The arrangement of the tension detection device has a certain influence on the warp yarn performance; 2) The tension detection device is arranged to cause the increase of the complexity of the on-machine operation of the sizing machine; 3) The system has higher precision requirements on tension detection and tension control, and the system is difficult to maintain; 4) The object detected by the tension detecting means may be only a small part of the warp yarns on each beam, and thus sampling errors may exist.
According to practical production experience, the effect of realizing the unwinding uniformity of each warp beam is not ideal by controlling the tension of the unwinding warp of each warp beam, and when the unwinding of the warp beam is finished, unequal residual yarns exist on each warp beam frequently, and the residual yarn quantity on each warp beam is large, so that the phenomenon that the residual yarn quantity on part of warp beams exceeds 100 meters is quite common.
Disclosure of Invention
The invention aims to solve the technical problems that: the intelligent control method for the unwinding length of the multiple beams of the interconnected high-precision sizing machine is provided, so that the technical problems that tension control is inaccurate, unwinding of each beam is asynchronous, accumulated errors in unwinding of part of beams cannot be eliminated, and resource waste is caused by a large amount of residual warp yarns at the end of production batch in the existing warp unwinding process are solved.
In order to solve the technical problems, the invention adopts the following technical scheme: the intelligent control method for the consistency of the unwinding lengths of the multiple warp beams of the sizing machine comprises the following specific steps:
1) Sequentially numbering the warp beams with numbers of 1,2, 3, … … and N, and obtaining the initial number of turns M i and the total length L of warp yarns on the warp beam with the number of i and the radius r 0 of all warp beams;
2) Let the thickness of each layer of warp yarn on the warp beam with the number i be Deltar i, then Deltar i＝(L-2πr0Mi)/πMi 2;
3) Setting a warp beam unwinding number detection period gamma t, and counting the total number of warp beam unwinding turns at the end of each detection period And recording and storing; recording the moment of the system as t, recording the moment of starting unwinding of the warp beam as t=0, increasing the value of t by 1 every gamma t time, and recording the detected number of unwinding turns of the warp beam once by the system as/>
4) Setting a braking force control parameter delta s, wherein the braking force control parameter represents the minimum step length of the braking force of a creel braking force control module of the sizing machine for each adjustment;
5) Setting a braking force control period delta t, wherein the braking force control period represents a period of outputting an adjusting command to a creel braking force control module of the sizing machine by a system, and delta t is an integer multiple of gamma t and the multiple is more than 3; steps 6) -10) are executed once every time a braking force control period Δt elapses from the time t=0 when the beam starts unwinding;
6) Let the current time be t d, calculate all the warp beams numbered i=1, 2,3, …, N that unwind to the th time at all times t=0, 1,2,3, …, t d up to the current time t d for all warp beams numbered i=1, 2,3, …, N Residual length of warp beam i at circle/>
Wherein,Indicating the number of turns of the residual warp yarn on the warp beam at the moment t, wherein w i (t) is increased and reduced at any moment t in the slashing production;
7) For all warp beams numbered i=1, 2,3, …, N, the remaining warp length deviation ratio σ i(wi (t)) at all times t=0, 1,2,3, …, t d up to the current time t d are calculated:
Wherein:
8) The number of turns w i (t) of the residual warp yarn on the warp beam is taken as an independent variable, and the gradient of the residual warp yarn length deviation rate at the current time t d is calculated according to the residual warp yarn length deviation rate sigma i(wi (t) at each time of each warp beam
Wherein Δw t,i(td) is a number of turns calculation window of the gradient of the residual length deviation rate of the ith warp beam at the current time t d, and the value method is as follows:
Δwt,i(td)＝2π(r0+wi(td)Δri)/Δlt
deltal t is a length window of gradient calculation, and the value interval is [0.01, 50] m according to experience;
9) Calculating the accumulated sigma i(wi(td of the residual warp length deviations of the warp beams at the current moment t d according to the residual warp length deviation rate sigma i(wi (t)) of each moment by taking the number w i (t) of the residual warp yarns on the warp beam as an independent variable:
Wherein Δw l,i(td) is a cumulative circle number calculation window of the deviation rate of the residual length of the ith warp beam at the current time t d, and the value method is as follows:
Δwl,i(td)＝2π(r0+wi(td)Δri)/Δll
Deltal l is a length window calculated in an accumulation way, and the value interval is [0.01, 50] m according to experience;
10 For all warp beams numbered i=1, 2,3, …, N, at the current instant t d, the control quantity is set as follows:
Rounding the value of s i(td) to an integer multiple of deltas, and sending a control signal to the end-of-beam brake with the number i to adjust the braking force of the brake by s i(td)/deltas steps, wherein K and T l,Tt are system control parameters.
As a preferable scheme, the multi-beam unwinding length consistency control method further comprises the following steps:
As a preferred embodiment, the control method further includes step 11): setting an upper limit s max and a lower limit-s min of the control amount, and adjusting the control amount to s max when the control amount is greater than s max; when the control amount is smaller than-s max, the control amount is adjusted to-s min.
As a preferable scheme, the gradient calculation window Δw t (t) and the accumulation calculation window Δw l (t) both change along with the change of w i (t), and the change relationship is that the length of the warp corresponding to the window is always unchanged, that is, the inverse ratio of 2pi (r 0+wi(t)Δri) is always satisfied.
As a preferable scheme, in step 1), the initial number of turns M i of warp yarn on beam i is obtained by detecting the number of rotations of beam i by using a rotation number detection module when winding warp yarn on a warping machine for beam i; in step 4), the warp beam i unwinds for the number of turns rotatedThe warp beam i on the warp beam frame is detected by adopting a revolution detection module; the revolution detecting module is any one of a Hall sensor, a magneto-electric sensor, a magneto-resistance sensor and an encoder.
The invention further solves the technical problems that: the intelligent control device for the unwinding length of the multiple beams of the interconnected high-precision sizing machine is provided, so that the technical problems that tension control is inaccurate, unwinding of each beam is asynchronous, accumulated errors in unwinding of part of beams cannot be eliminated, and resource waste is caused by a large amount of residual warp yarns at the end of production batch in the existing warp unwinding process are solved.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a many warp beam backing-off length uniformity intelligent control device of dresser, includes a control module, a storage module, a first revolution detection module that is used for detecting the warp beam and rotates the week number on the warper, a plurality of second revolution detection module with the warp beam one-to-one on the creel, a plurality of stopper and the braking force adjustment module with the stopper one-to-one on the creel, control module and storage module communication are connected, first revolution detection module and second revolution detection module respectively with control module electric connection, the stopper one-to-one is connected at the warp beam tip and with the creel fixed connection that the warp beam is located, braking force adjustment module is connected with the stopper, adjusts the braking force size of stopper, and braking force adjustment module still is connected with control module, is controlled by braking force adjustment module.
As a preferable scheme, the first revolution detecting module is an encoder and is fixedly connected to one end of a warping machine head through a bracket, the first revolution detecting module is in transmission connection with a beam positioned on the warping machine, and the revolution of the beam rotating on the warping machine is detected and sent to the control module.
As a preferable scheme, the second revolution detecting module is also an encoder, any second revolution detecting module is fixedly connected to one end of the beam rest through a bracket and is in transmission connection with a corresponding beam, and the number of the revolution of unwinding of the beam on the beam rest is detected and sent to the control module.
As a preferable scheme, the brake is a hydraulic brake, and the braking force adjusting module is a proportional pump connected to the hydraulic oil path.
The beneficial effects of the invention are as follows: according to the invention, the warp allowance on each warp beam is monitored in real time in the unwinding process, and the braking force of the warp beam is adjusted in time according to the warp allowance deviation on each warp beam, so that the warp allowance deviation rate on each warp beam fluctuates within a small range, the unwinding quantity of warp yarns on each warp beam can be controlled to be basically consistent, the aim of synchronous unwinding is realized, and the problem of inaccurate control of the tension of each warp yarn in the unwinding process is solved. Because the braking force of the warp beams is continuously regulated in the unwinding process, the accumulated error generated by any warp beam in one regulation period can be corrected in the next or next several periods in the production process, so that the continuous expansion of the accumulated error is avoided, and the problem of resource waste caused by a large amount of residual warp yarns at the end of the production batch is avoided.
Drawings
The invention is described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a control schematic of the present invention;
FIG. 2 is a schematic diagram of an operating state of the first turn detection module;
FIG. 3 is a schematic diagram of an operating state of the second revolution detecting module;
Fig. 1 to 3 show: 1. the system comprises a control module, a storage module, a warp beam, a first revolution detection module, a warp beam frame, a second revolution detection module, a brake, a braking force adjusting module, a warping machine head and a braking wheel, wherein the warp beam is arranged on the warp beam, the first revolution detection module is arranged on the warp beam frame, the second revolution detection module is arranged on the warp beam frame, the braking force adjusting module is arranged on the warping machine head, and the warping machine head is arranged on the warping machine head.
Detailed Description
Specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Example 1:
Referring to fig. 1 to 3, this embodiment specifically describes an intelligent control method for unwinding lengths of multiple beams of an interconnection type high-precision sizing machine, taking a sizing system configured with 6 beams as an example, and the method includes the following specific steps:
1) Six beams 3 are numbered, denoted "i", i being [1,2,3,4,5,6] respectively. The total length L of the yarn wound on each beam 3 is 8000M, and the number of turns M i of the beam during warping is 5160, 5092, 5000, 5202, 4986, 5070, respectively. The number of turns M i of the beam 3 during warping can be obtained by calculating the number of turns of the driving motor used for driving the beam 3 to rotate by the warping machine head 9 and the transmission ratio of the driving motor to the beam 3, and can also be obtained by adopting the first turn detection module 4 shown in fig. 1 and 2. The first revolution detecting module 4 may be any one of a hall sensor, a magneto-electric sensor, a magneto-resistive sensor, and an encoder. Hall sensors, magneto-electric sensors, magneto-resistive sensors, and encoders are all commonly used counting sensors.
2) Knowing that beam 3 has a radius r 0 of 0.15m, the warp yarn thickness per layer is calculated by the following formula:
Δri＝(L-2πr0Mi)/πMi 2
The values of Deltar i are [3.75,3.93,4.19,3.64,4.23,3.99 ]. Times.10 -5 m respectively. The radii of the beams 3 of the same batch are generally identical, so that the radius r 0 in this step represents the radius of all beams 3.
3) The detection period gamma t of the unwinding number of the warp beam 3 is set, and gamma t in the embodiment takes a value of 1s. Counting total unwinding number of turns of warp beam 3 at the end of each detection periodAnd recording and storing; recording the system time as t, recording the time when the warp beam 3 starts unwinding as t=0, increasing the value of each time the gamma t time t is increased by 1, and recording the detected number of unwinding turns of the warp beam once by the system as/>
4) The braking force control parameter deltas is set, in this embodiment, the air pressure of the braking force air pressure valve or the proportional valve is set to be 0.1kPa. The braking force control parameter represents the minimum step length of the braking force of the creel braking force control module of the sizing machine.
5) The braking force control period Δt is set, Δt is an integer multiple of γ t and the multiple is greater than 3, and Δt takes a value of 10s in this embodiment. The moment when the warp beam 3 starts the slashing production after finishing the machine is recorded as t=0, and the following operation and control operations of steps 6) to 10) are executed once every Δt time thereafter. The braking force control period represents the period of the system outputting an adjusting command to the creel braking force control module of the sizing machine.
6) Let the current time t d, calculate all the warp beams numbered i=1, 2,3, …,6 for their unwinding to the th time t d at all times t=0, 1,2,3, …, t 3548 up to the current time t d Residual Length at Loop/>
Wherein,The remaining number of turns of the warp beam at the time t is represented, and the number t is increased and decreased at any time in the production of sizing.
Taking the data at t d =600 as an example (in this embodiment, the unwinding number detection period γ t is 1s, so t d =600 is the 600s after the unwinding from the beam), the unwinding number of each beam 3 is at this timeRespectively [470.64, 459.06, 467.32, 483.68, 450.22, 484.49], the number of remaining warp yarn turns w i (600) on each beam 3 is respectively [4689.36, 4632.94, 4532.68, 4718.32, 4535.78, 4585.51], which unwind to the/>Residual Length at Loop/>Calculated as [7010.31, 7016.22, 6973.74, 6994.96, 7006.49, 6957.07].
In the same way, the warp beams at t=599, 598, 597,..once again, 591 can be determinedAnd (5) taking a value. Since Δt takes 10s and γt takes 1s, the brake control force of the beam is adjusted at t=600, 590, 580, 570, …,10, and each unwinding cycle detection period γ t during unwinding of beam 3 detects the unwinding cycle/>, of beam 3And corresponding w i (t),/>, is calculated according to the above formulaThus t=600, 599, 598, …, 10/>The values are all calculated and recorded.
7) For all beams numbered i=1, 2,3, …,6, calculate their remaining length deviation rate σ i(wi(td) at all times t=0, 1,2,3, …, t d up to the current time t d):
8) Calculating the gradient of the deviation rate of the length of the residual warp yarn on each warp beam 3 at the current moment t d by taking the number of turns w i (t) of the residual warp yarn on the warp beam as an independent variable
Wherein Δw t,i(td) is the number of turns calculation window of the gradient of the deviation rate of the residual length of the ith warp beam at the current time t d, and the value method is as follows:
Δwt,i(td)＝2π(r0+wi(td)Δri)/Δlt
Deltal t is a length window of gradient calculation, and the value interval is [0.01, 50] m according to experience.
9) The cumulative Sigma i(wi(td of the deviation rate of the residual length on each warp beam 3 at the current time t d is calculated by taking the number of turns w i (t) of the residual warp yarn on the warp beam as an independent variable,
Wherein Δw l,i(td) is a cumulative circle number calculation window of the deviation rate of the residual length of the ith warp beam at the current time t d, and the value method is as follows:
Δwl,i(td)＝2π(r0+wi(td)Δri)/Δll
Deltal l is a length window calculated in an accumulation mode, and the value interval is [0.01, 50] m according to experience.
Taking the data at t d =600 as an example, the average remaining length of each beam 3 at this time6993.13M, and thus the remaining length deviation σ i(wi (600)) of each warp beam is [0.246%,0.330%, -0.277%,0.026%,0.191%, -0.516% ].
Taking the beam with i=4 as an example, the values of w 4(t)、σ4(w4 (t)) at t=580, 581, 582, …,600 are shown in table 1.
In this example, when the length window Δl t of the gradient calculation is set to 0.5m, Δw t,i (600) is found to be [4.09,4.17,4.27,4.05,4.29,4.18] when Δr i is [3.75,3.93,4.19,3.64,4.23,3.99] ×10 -5m,r0 is 0.15 m. Substituted formula The absolute value internal value calculation result is shown in table 1, and k 1 is 592, and k 2 is 596. Thereby substituting/>To obtain the calculation formula of the/>The value of (3) is 3.6585 X10 -5.
When the cumulative length window Δl l is set to 0.5m and Δr i at this time is [3.75,3.93,4.19,3.64,4.23,3.99] ×10 -5m,r0 to 0.15m, Δw l,i (600) is [4.09,4.17,4.27,4.05,4.29,4.18]. Carry-in typeThe absolute value is calculated as shown in table 1, and k is 592. Thereby substituting Σσ i(wi(td)) to obtain a value of Σσ 4(w4 (600)) at this time as 0.0102.
In this embodiment, the data in table 1 is omitted, and since the value of t is the data size from 0 th to 600 th is too large, according to the actual values of k, k 1 and k 2, a total of 21 pieces of data information are reserved, and the omitted data information does not affect the clear expression of the technical scheme of the present invention.
Table 1:
Similarly, the remaining beams at time t d can be calculated ∑σi(wi(td))。
10 For all beams numbered i=1, 2,3, …, N, at the current time t d, to ensure that the remaining lengths of all beams are the highest in consistency, the control amounts are set as follows:
Rounding to be integral multiple of delta s, wherein K, T l,Tt are system control parameters, and the value ranges are 0, 10 and 5; in this embodiment, the value of K is 100, the value of t l is 10, the value of t t is 100, in order to ensure that no abrupt tension change occurs, an upper control limit s max and a lower control limit-s max are set, the control is adjusted to s max when the control is greater than s max, and the control is adjusted to-s max when the control is less than-s max. In this example, the upper limit of the control amount s max is 15kPa, and the lower limit of the control amount-s max is-15 kPa.
Taking data of t d =600 as an example, taking a beam of i=4 as an example, and taking the value of s 4 (600) as 10.8119, the step size of the braking force of the brake 7 to be adjusted is s 4 (600)/deltas= 108.119, rounding is adopted to be an integral multiple of deltas and 108 is adopted, and when the beam 3 with the number i of 4 is unreeled to 600s in the range of the upper limit and the lower limit of the control quantity, the control module 1 sends a signal to the braking force adjusting module 8, and the braking force adjusting module 8 improves the braking force of the brake 7 by 108 minimum step sizes, namely improves the braking force of the brake 7 by 10.8kPa.
The same method is adopted, the control amount s i(td of all the beams can be obtained), and the braking force of each beam is adjusted according to the above manner. Finally, the method is adopted in the embodiment, so that the residual yarn quantity of each warp beam 3 is effectively controlled below 30m, the yarn loss is effectively reduced, and the tension balance among all yarns in the warp unwinding process is ensured.
Example 2:
as shown in fig. 1 to 3, the intelligent control device for the unwinding length of the multi-beam of the interconnected high-precision sizing machine for implementing the method described in the above embodiment 1 includes a control module 1, a storage module 2, a first revolution detecting module 4 for detecting the revolution number of the beam 3 on the warping machine, six second revolution detecting modules 6 in one-to-one correspondence with the beam 3 on the beam frame 5, six brakes 7 in one-to-one correspondence with the beam 3 on the beam frame 5, and a braking force adjusting module 8 in one-to-one correspondence with the brakes 7, wherein the control module 1 and the storage module 2 are in communication connection, the first revolution detecting module 4 and the second revolution detecting module 6 are respectively and electrically connected with the control module 1, the brakes 7 are connected at the end of the beam 3 in one-to-one correspondence and are fixedly connected with the beam frame 5 where the beam 3 is located, the braking force adjusting module 8 is connected with the brakes 7, and the braking force adjusting module 8 is also connected with the control module 1 to be controlled by the control module 1. Only the interrelationship among the modules is shown in fig. 1, and the number of the modules is increased or decreased according to actual conditions. The control module 1 in this embodiment is a single-chip microcomputer or an industrial personal computer, preferably an industrial personal computer.
As shown in fig. 2, in this embodiment, the first revolution detecting module 4 is a magneto-electric sensor, the first revolution detecting module 4 is fixedly connected to one end of the warping machine head 9, detects the number of revolutions of the warping machine, which is rotated by the warping machine, of the warp beam 3, and sends the number of revolutions to the control module 1, and the number of revolutions is processed by the control module 1 and stored in the storage module 2. In actual production, the first revolution detecting module 4 may use a hall sensor or a magneto-resistive sensor.
As shown in fig. 3, in this embodiment, the second revolution detecting module 6 is also a magneto-electric sensor, and any second revolution detecting module 6 is fixedly connected to one end of the beam frame 5, detects the number of revolutions of unwinding the beam 3 on the beam frame 5, sends the number of revolutions to the control module 1, and stores the number of revolutions in the storage module 2 after being processed by the control module 1. In actual production, the first revolution detecting module 4 may use a hall sensor or a magneto-resistive sensor. Fig. 3 shows a schematic view of the working state of only one beam 3, the working state of the other beams 3 being identical to that shown in fig. 3.
The magneto-electric sensor belongs to a conventional induction counter, and the use method thereof is common knowledge in the art, and generally, one induction device is fixedly installed, a magnet is installed on a movable component, in this embodiment, the magnet may be installed on the outer side of a disc of the beam 3, the induction device is installed on the beam frame 5, when the beam 3 rotates, the magnet and the induction device meet, the induction device can generate a signal and send the signal to the control module 1, and in order to improve the detection precision, a plurality of magnets may be uniformly distributed on the outer side of the disc of the beam 3 in the circumferential direction, or a plurality of induction devices may be arranged on the beam frame 5.
The mounting of the magnetoelectric sensor on the warping machine head 9 is similar to the mounting of the magnetoelectric sensor on the creel 5.
The brake 7 in this embodiment is a hydraulic brake, the braking force adjusting module 8 is a pneumatic valve or a proportional valve connected to the hydraulic oil path, a brake wheel 10 is fixedly sleeved on the shaft head of the beam 3, the brake 7 is sleeved on the periphery of the brake wheel, and the braking force adjusting module 8 can adjust the friction force exerted by the brake 7 on the brake wheel, namely, the friction force.
In this embodiment, the connection between the beam 3 and the brake 7 belongs to the conventional technology in the art, and reference may be made to the beam brake structure disclosed in the patent number 202022650403.4.
The working procedure of the present invention is as described in example 1, and will not be repeated here.
The above embodiments are merely illustrative of the principles and effects of the present invention, and some of the applied embodiments, and are not intended to limit the invention; it should be noted that modifications and improvements can be made by those skilled in the art without departing from the inventive concept, and these are all within the scope of the present invention.
Claims (8)
1. The intelligent control method for the unwinding length of the multi-beam of the interconnected high-precision sizing machine is characterized by comprising the following specific steps:
1) Sequentially numbering the warp beams with numbers of 1,2, 3, … … and N, and obtaining the initial number of turns M i and the total length L of warp yarns on the warp beam with the number of i and the radius r 0 of all warp beams;
2) Let the thickness of each layer of warp yarn on the warp beam with the number i be Deltar i, then Deltar i＝(L-2πr0Mi)/πMi 2;
3) Setting a warp beam unwinding number detection period gamma t, and counting the total number of warp beam unwinding turns at the end of each detection period And recording and storing; recording the moment of the system as t, recording the moment of starting unwinding of the warp beam as t=0, increasing the value of t by 1 every gamma t time, and recording the detected number of unwinding turns of the warp beam once by the system as/>
4) Setting a braking force control parameter delta s, wherein the braking force control parameter represents the minimum step length of the braking force of a creel braking force control module of the sizing machine for each adjustment;
5) Setting a braking force control period delta t, wherein the braking force control period represents a period of outputting an adjusting command to a creel braking force control module of the sizing machine by a system, and delta t is an integer multiple of gamma t and the multiple is more than 3; steps 6) -10) are executed once every time a braking force control period Δt elapses from the time t=0 when the beam starts unwinding;
6) Let the current time t d, calculate, for all beams numbered i=1, 2,3,..n, that they unwind to the th at all times t=0, 1,2,3, …, t d up to the current time t d Residual length of warp beam i at circle/>
Wherein,Indicating the number of turns of the residual warp yarn on the warp beam at the moment t, wherein w i (t) is increased and reduced at any moment t in the slashing production;
7) For all beams numbered i=1, 2, 3..n, all times t=0, 1,2,3, residual warp length deviation ratio at t d σ i(wi (t)):
Wherein:
8) The gradient of the length deviation rate of the residual warp yarns at the current moment t d to the number of turns w i (t) of the residual warp yarns on the warp beam is calculated according to the length deviation rate sigma i(wi (t) of the residual warp yarns at each moment of each warp beam by taking the number of turns w i (t) of the residual warp yarns on the warp beam as independent variables
Wherein Δw t,i(td) is a number of turns calculation window of the gradient of the residual length deviation rate of the ith warp beam at the current time t d, and the value method is as follows:
Δwt,i(td)＝2π(r0+wi(td)Δri)/Δlt
deltal t is a length window of gradient calculation, and the value interval is [0.01, 50] m according to experience;
9) Calculating the accumulated sigma i(wi(td of the residual warp length deviations of the warp beams at the current moment t d according to the residual warp length deviation rate sigma i(wi (t)) of each moment by taking the number w i (t) of the residual warp yarns on the warp beam as an independent variable:
Wherein Δw l,i(td) is a cumulative circle number calculation window of the deviation rate of the residual length of the ith warp beam at the current time t d, and the value method is as follows:
Δwl,i(td)＝2π(r0+wi(td)Δri)/Δll
Deltal l is a length window calculated in an accumulation way, and the value interval is [0.01, 50] m according to experience;
10 For all beams numbered i=1, 2, 3.. at the current time t d, the control amount is set as follows:
Rounding the value of s i(td) to an integer multiple of deltas, and sending a control signal to the end-of-beam brake with the number i to adjust the braking force of the brake by s i(td)/deltas steps, wherein K and T l,Tt are system control parameters.
2. The intelligent control method for the unwinding length of the multiple beams of the interconnected high-precision sizing machine according to claim 1, further comprising the following steps:
11 Upper limit s max and lower limit-s min of the control amount, and when the control amount is greater than s max, adjusting the control amount to s max; when the control amount is smaller than-s min, the control amount is adjusted to-s min.
3. The intelligent control method for the unwinding length of the multi-beam of the interconnected high-precision sizing machine according to claim 1, wherein the gradient calculation window Δw t (t) and the accumulation calculation window Δw l (t) are changed along with the change of w i (t), and the change relation is that the length of the warp corresponding to the window is always unchanged, namely the inverse proportion of 2 pi (r 0+wi(t)Δri) is always satisfied.
4. The intelligent control method for the unwinding length of a plurality of beams of an interconnected high-precision sizing machine according to claim 1, wherein in the step 1), the initial number of turns M i of warp yarns on a beam i is obtained by detecting the number of rotations of the beam i by using a rotation number detection module when the warp yarns are wound on a warping machine for the beam i; in step 4), the warp beam i unwinds for the number of turns rotatedThe warp beam i on the warp beam frame is detected by adopting a revolution detection module; the revolution detecting module is any one of a Hall sensor, a magneto-electric sensor, a magneto-resistance sensor and an encoder.
5. The intelligent control device for the unwinding length of the multi-beam of the interconnected high-precision sizing machine is used for implementing the intelligent control method for the unwinding length of the multi-beam of the interconnected high-precision sizing machine according to any one of claims 1 to 4, and is characterized by comprising a control module (1), a storage module (2), a first revolution number detection module (4) for detecting the revolution number of the beam (3) on the warping machine, a plurality of second revolution number detection modules (6) which are in one-to-one correspondence with the beam (3) on a beam rest (5), a plurality of brakes (7) which are in one-to-one correspondence with the beam (3) on the beam rest (5) and braking force adjusting modules (8) which are in one-to-one correspondence with the brakes (7), wherein the control module (1) and the storage module (2) are in communication connection, the first revolution number detection module (4) and the second revolution number detection module (6) are respectively in one-to-one correspondence with the control module (1), the brakes (7) are fixedly connected with the beam rest (5) at the end of the beam (3) and the beam rest (3) is in one-to-one correspondence with the braking force adjusting modules (7), and the braking force adjusting modules (7) are also in one-to-one control module (1).
6. The intelligent control device for the unwinding length of the multi-beam of the slurry interconnection type high-precision sizing machine according to claim 5 is characterized in that the first revolution detecting module (4) is any one of a Hall sensor, a magneto-electric sensor and a magneto-resistance sensor, the first revolution detecting module (4) is fixedly connected to one end of a warping machine head, and the revolution of the beam (3) rotating on the warping machine is detected and sent to the control module (1).
7. The intelligent control device for the unwinding length of the multi-beam of the slurry interconnection type high-precision sizing machine according to claim 5, wherein the second revolution detecting module (6) is any one of a Hall sensor, a magneto-electric sensor and a magneto-resistance sensor, any one of the second revolution detecting modules (6) is fixedly connected to one end of a beam rest (5), and the number of the revolutions of the beam (3) unwinding on the beam rest (5) is detected and sent to the control module (1).
8. The intelligent control device for the unwinding length of the multi-beam of the slurry interconnection type high-precision sizing machine according to claim 5, wherein the brake (7) is a hydraulic brake, and the braking force adjusting module (8) is a proportional valve connected to a hydraulic oil path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210997996.2A CN115339963B (en) | 2022-08-19 | 2022-08-19 | Intelligent control method and device for unwinding length of multiple warp beams of interconnected high-precision sizing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210997996.2A CN115339963B (en) | 2022-08-19 | 2022-08-19 | Intelligent control method and device for unwinding length of multiple warp beams of interconnected high-precision sizing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115339963A CN115339963A (en) | 2022-11-15 |
| CN115339963B true CN115339963B (en) | 2024-04-26 |
Family
ID=83954866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210997996.2A Active CN115339963B (en) | 2022-08-19 | 2022-08-19 | Intelligent control method and device for unwinding length of multiple warp beams of interconnected high-precision sizing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115339963B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060123A (en) * | 1991-09-17 | 1992-04-08 | 南通第一棉纺织厂 | Tension automatic control system for warper beam unwinding of sizing machine |
| CN1446276A (en) * | 2000-08-02 | 2003-10-01 | 艾罗帕股份有限公司 | Weft yarn deflection brake and method for controlling weft insertion into weaving machine |
| EP1500729A1 (en) * | 2003-07-25 | 2005-01-26 | Tsudakoma Kogyo Kabushiki Kaisha | Method and apparatus of controlling data of reel length and reel off length |
| JP2008056486A (en) * | 2006-08-04 | 2008-03-13 | Meiki Co Ltd | Method of controlling carrying mechanism for carrying film |
| CN111041638A (en) * | 2019-12-26 | 2020-04-21 | 江阴祥盛纺印机械制造有限公司 | Constant-draft-rate unwinding method and device for passive unwinding type beam |
| CN112722987A (en) * | 2020-12-31 | 2021-04-30 | 张家港三得利染整科技有限公司 | Multi-beam yarn unwinding method |
-
2022
- 2022-08-19 CN CN202210997996.2A patent/CN115339963B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060123A (en) * | 1991-09-17 | 1992-04-08 | 南通第一棉纺织厂 | Tension automatic control system for warper beam unwinding of sizing machine |
| CN1446276A (en) * | 2000-08-02 | 2003-10-01 | 艾罗帕股份有限公司 | Weft yarn deflection brake and method for controlling weft insertion into weaving machine |
| EP1500729A1 (en) * | 2003-07-25 | 2005-01-26 | Tsudakoma Kogyo Kabushiki Kaisha | Method and apparatus of controlling data of reel length and reel off length |
| JP2008056486A (en) * | 2006-08-04 | 2008-03-13 | Meiki Co Ltd | Method of controlling carrying mechanism for carrying film |
| CN111041638A (en) * | 2019-12-26 | 2020-04-21 | 江阴祥盛纺印机械制造有限公司 | Constant-draft-rate unwinding method and device for passive unwinding type beam |
| CN112722987A (en) * | 2020-12-31 | 2021-04-30 | 张家港三得利染整科技有限公司 | Multi-beam yarn unwinding method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115339963A (en) | 2022-11-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0146427B2 (en) | ||
| KR101167350B1 (en) | Method and device for operating a creel designed for a winding system and corresponding creel | |
| CN102874637B (en) | A kind of multi-axis synchronized control device | |
| CN101195454A (en) | Film tension control method in film production | |
| CN1250436C (en) | Method for controlling yarn processing system and yarn processing system | |
| JP2014122117A (en) | Method for preventing ribbon winding and winding device for cross-wound package | |
| CN112286129B (en) | PLC-based optical fiber screening machine control model design method | |
| CN115339963B (en) | Intelligent control method and device for unwinding length of multiple warp beams of interconnected high-precision sizing machine | |
| US7086129B2 (en) | System for producing wound warps | |
| CN201172555Y (en) | Strand coiling length fixing device for bobbin winder | |
| CN1152901A (en) | Method of controlling the rotary device in a winding machine | |
| CN111606097A (en) | Constant tension control method and system based on winding machine | |
| EP2844597B1 (en) | Method and device for winding a synthetic yarn coming from an extruder | |
| CN1427796A (en) | Thread-tension and thread-length controller | |
| WO2016206326A1 (en) | Sizing machine tension control system based on plc and engineering frequency converter | |
| CN107523914A (en) | A kind of control method of sectional warper | |
| CN111041638B (en) | Constant-draft-rate unwinding method and device for passive unwinding type beam | |
| CN115402878A (en) | Non-contact type intelligent control device and method for unwinding length of multiple warp beams of sizing machine | |
| US5727744A (en) | Method and apparatus to control the winding pattern on a yarn package | |
| WO2020080996A1 (en) | Yarn feeding device with learning procedure | |
| CN202661894U (en) | Yarn tension measurement and control system | |
| CN114604668A (en) | Tire building machine crown band strip unwinding tension control device, method, device and program product | |
| JP2005042230A (en) | Method and apparatus for controlling data of take-up/take-off length | |
| CN204780261U (en) | Printing device based on multimachine synchronization and tension control | |
| Jeftenic et al. | Realization of rewinder with a reduced number of sensors |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |