CN103955235B - Automatic control method for pre-shrinking rate of pre-shrinking and finishing combined machine - Google Patents
Automatic control method for pre-shrinking rate of pre-shrinking and finishing combined machine Download PDFInfo
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- CN103955235B CN103955235B CN201410203122.0A CN201410203122A CN103955235B CN 103955235 B CN103955235 B CN 103955235B CN 201410203122 A CN201410203122 A CN 201410203122A CN 103955235 B CN103955235 B CN 103955235B
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Abstract
The invention discloses an automatic control method for the pre-shrinking rate of a pre-shrinking and finishing combined machine. When the difference value between an actual pre-shrinking rate and a rated pre-shrinking rate is within the range from -2% to +2%, the cloth discharging speed is unchanged; when the actual pre-shrinking rate is 0.2% larger than the rated pre-shrinking rate, a control device outputs a control signal to increase the cloth discharging speed until the difference value between the actual pre-shrinking rate and the rated pre-shrinking rate is recovered to be within the range from -2% to +2%, and then the cloth feeding speed and the cloth discharging speed are kept unchanged; when the actual pre-shrinking rate is 0.2% smaller than the rated pre-shrinking rate, the control device outputs a control signal to decrease the cloth discharging speed until the difference value between the actual pre-shrinking rate and the rated pre-shrinking rate is recovered to be within the range from -2% to +2%, and then the cloth feeding speed and the cloth discharging speed are kept unchanged. According to the automatic control method for the pre-shrinking rate of the pre-shrinking and finishing combined machine, the pre-shrinking rate which is originally controlled in a manual fuzzy mode is changed to be controlled accurately and automatically, the influence of human factors is reduced, the detection and control precision of the cloth pre-shrinking rate is improved, the percent of pass of products is improved, labor intensity is reduced, energy consumption and the production cost are reduced, and product competitiveness is improved.
Description
Technical field
The invention belongs to textile manufacturing processes technical field, it is related to a kind of control method, particularly a kind of shrunk finish
Combination machine preshrinking rate autocontrol method.
Background technology
Preshrunk is to make fabric size in the case of wet, hot produce to shrink, and to recover the balance case of bending of yarn, makes fabric
Originally existed potential be contracted in finished product before retract in advance, to meet the washing shrinkage standard that textile specifies, prevent textile
After being processed into clothing, produce during dress washing and shrink.Currently the control method of traditional preshrinking rate is fabric in startup procedure
Enter cloth dewing pre-test certain length and mark, then again this length fabric is carried out after shrunk finishing combined machine for textile in fabric
Measurement, calculate current preshrinking rate, if not reaching technological requirement, typically with operative employee's experience adjustments rubber blanket pressure or speed after
Being remeasured, and fabric is subject to artificial the subjective factorss such as pull, measure and there is larger error, especially in measurement process
It is that measurement interval length can cause defective work to increase, and typically in order to ensure goodwill, exempt and returning goods, using contract requirement
The shrinkage upper limit walks goods, causes cloth steam equal energy source consumption so that production cost is increased.
Content of the invention
The present invention, in order to overcome the defect of prior art, devises a kind of shrunk finishing combined machine for textile shrinkage side of automatically controlling
Method, it is achieved that preshrinking rate is controlled to accurately automatically controlling by artificial fuzzy, improves detection and the control accuracy of fabric preshrinking rate,
Decrease labor intensity, reduce energy resource consumption and production cost, improve product competitiveness.
Concrete technical scheme of the present invention is: a kind of shrunk finishing combined machine for textile shrinkage autocontrol method, crucial
It is: described control method comprises the following steps:
A, preset using control device specified preshrinking rate, combination machine fabric input mouth enter cloth speed, the going out of combination machine exit slot
Cloth speed；
B, in combination machine work process, using first encoder detect combination machine fabric input mouth enter cloth speed, simultaneously profit
With second encoder detect exit slot go out cloth speed；
C, the first encoder and second encoder are entered detect in step b cloth speed and are gone out cloth velocity feedback to control
Device, control device draws actual preshrinking rate；
The actual preshrinking rate of step c gained and specified preshrinking rate are compared by d, control device, when actual preshrinking rate with
When the difference of specified preshrinking rate is within ± 0.2%, go out that cloth speed is constant, when actual preshrinking rate is more than specified preshrinking rate
When 0.2%, control device output control signal is accelerated cloth speed, until actual preshrinking rate is recovered with the difference of specified preshrinking rate
To within ± 0.2%, then keeping into cloth speed and going out that cloth speed is constant, when actual preshrinking rate is less than specified preshrinking rate
When 0.2%, control device output control signal slows down and cloth speed, until the difference recovery of actual preshrinking rate and specified preshrinking rate
To within ± 0.2%, then keeping into cloth speed and to go out cloth speed constant；
E, every 5s repeat step c to step d.
The invention has the beneficial effects as follows: achieve preshrinking rate using shrunk finishing combined machine for textile and controlled to accurate by artificial fuzzy
Automatically control, decrease the impact of anthropic factor, improve detection and the control accuracy of fabric preshrinking rate, improve the conjunction of product
Lattice rate, decreases labor intensity, reduces energy resource consumption and production cost, improves product competitiveness.
Specific embodiment
A kind of shrunk finishing combined machine for textile shrinkage autocontrol method it is important to: described control method comprises the following steps:
A, preset using control device specified preshrinking rate, combination machine fabric input mouth enter cloth speed, the going out of combination machine exit slot
Cloth speed；
B, in combination machine work process, using first encoder detect combination machine fabric input mouth enter cloth speed, simultaneously profit
With second encoder detect exit slot go out cloth speed；
C, the first encoder and second encoder are entered detect in step b cloth speed and are gone out cloth velocity feedback to control
Device, control device draws actual preshrinking rate；
The actual preshrinking rate of step c gained and specified preshrinking rate are compared by d, control device, when actual preshrinking rate with
When the difference of specified preshrinking rate is within ± 0.2%, go out that cloth speed is constant, when actual preshrinking rate is more than specified preshrinking rate
When 0.2%, control device output control signal is accelerated cloth speed, until actual preshrinking rate is recovered with the difference of specified preshrinking rate
To within ± 0.2%, then keeping into cloth speed and going out that cloth speed is constant, when actual preshrinking rate is less than specified preshrinking rate
When 0.2%, control device output control signal slows down and cloth speed, until the difference recovery of actual preshrinking rate and specified preshrinking rate
To within ± 0.2%, then keeping into cloth speed and to go out cloth speed constant；
E, every 5s repeat step c to step d.
Embodiment 1, yarn card kind one, after dyeing and finishing processing, percentage elongation is 2%, that is, under normal circumstances, throws 100 meters of base, due to
The reasons such as equipment tension force effect, after dyeing and finishing, length is 102 meters.Customer requirement shrinkage is 3～4%, that is, throw 100 meters of base, after dyeing and finishing
It is qualified that finished product length is 96～97 meters.
When preshrunk produces, set specified preshrinking rate as 6% using control device, the cloth speed of entering of combination machine fabric input mouth is
39.8 ms/min, the cloth speed that goes out of combination machine exit slot is 37.4 ms/min, combination machine fabric input mouth is detected using the first encoder
Enter cloth speed be 39.8 ms/min, using second encoder detect exit slot go out cloth speed be 37.4 ms/min, detection data
Every five seconds for example refreshes once, enters cloth speed and goes out 2.4 ms/min of cloth speed difference, recording shrinkage is 6.03%, deducts 2% elongation,
Actual preshrinking rate is 4.03%, and actual preshrinking rate and specified preshrinking rate error are 0.03%, numerical difference in normal range is ±
Within 0.2%, then shrunk finishing combined machine for textile only detects and is failure to actuate.
Embodiment 2, yarn card kind two, after dyeing and finishing processing, percentage elongation is 2%, that is, under normal circumstances, throws 100 meters of base, due to
The reasons such as equipment tension force effect, after dyeing and finishing, length is 102 meters.Customer requirement shrinkage is 3～4%, that is, throw 100 meters of base, after dyeing and finishing
It is qualified that finished product length is 96～97 meters.
When preshrunk produces, set specified preshrinking rate as 6% using control device, the cloth speed of entering of combination machine fabric input mouth is
39.8 ms/min, the cloth speed that goes out of combination machine exit slot is 37.3 ms/min, combination machine fabric input mouth is detected using the first encoder
Enter cloth speed be 39.8 ms/min, using second encoder detect exit slot go out cloth speed be 37.3 ms/min, detection data
Every five seconds for example refreshes once, enters cloth speed and goes out 2.5 ms/min of cloth speed difference, recording shrinkage is 6.28%, deducts 2% elongation,
Actual preshrinking rate is 4.28%, and actual preshrinking rate and specified preshrinking rate mistake differs+0.28%, numerical difference in normal range is+
Beyond 0.2%, this timed unit output control signal is accelerated cloth speed, until the difference of actual preshrinking rate and specified preshrinking rate
Within value returns to ± 0.2%, then keep into cloth speed and to go out cloth speed constant.
Embodiment 3, yarn card kind three, after dyeing and finishing processing, percentage elongation is 2%, that is, under normal circumstances, throws 100 meters of base, due to
The reasons such as equipment tension force effect, after dyeing and finishing, length is 102 meters.Customer requirement shrinkage is 3～4%, that is, throw 100 meters of base, after dyeing and finishing
It is qualified that finished product length is 96～97 meters.
When preshrunk produces, set specified preshrinking rate as 6% using control device, the cloth speed of entering of combination machine fabric input mouth is
39.8 ms/min, the cloth speed that goes out of combination machine exit slot is 37.5 ms/min, combination machine fabric input mouth is detected using the first encoder
Enter cloth speed be 39.8 ms/min, using second encoder detect exit slot go out cloth speed be 37.5 ms/min, detection data
Every five seconds for example refreshes once, enters cloth speed and goes out 2.3 ms/min of cloth speed difference, recording shrinkage is 5.78%, deducts 2% elongation,
Actual preshrinking rate is 3.78%, and actual preshrinking rate differs -0.22% with specified preshrinking rate, numerical difference in normal range is -
Beyond 0.2%, this timed unit output control signal slows down and cloth speed, until the difference of actual preshrinking rate and specified preshrinking rate
Within value returns to ± 0.2%, then keep into cloth speed and to go out cloth speed constant.
Claims (1)
1. a kind of shrunk finishing combined machine for textile preshrinking rate autocontrol method it is characterised in that: described control method includes following
Step:
A, preset using control device specified preshrinking rate, combination machine fabric input mouth enter cloth speed, combination machine exit slot go out cloth speed
Degree；
B, in combination machine work process, enter cloth speed using what the first encoder detected combination machine fabric input mouth, utilize the simultaneously
Two encoders detect exit slots go out cloth speed；
C, the first encoder and second encoder are entered detect in step b cloth speed and are gone out cloth velocity feedback to control dress
Put, control device draws actual preshrinking rate；
The actual preshrinking rate of step c gained and specified preshrinking rate are compared by d, control device, when actual preshrinking rate with specified
When the difference of preshrinking rate is within ± 0.2%, go out that cloth speed is constant, when actual preshrinking rate is more than the 0.2% of specified preshrinking rate,
Control device output control signal is accelerated cloth speed, until the difference of actual preshrinking rate and specified preshrinking rate return to ±
Within 0.2%, then keep into cloth speed and go out that cloth speed is constant, when actual preshrinking rate is less than the 0.2% of specified preshrinking rate,
Control device output control signal slows down and cloth speed, until the difference of actual preshrinking rate and specified preshrinking rate return to ±
Within 0.2%, then keep into cloth speed and to go out cloth speed constant；
E, every 5s repeat step c to step d.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410203122.0A CN103955235B (en) | 2014-05-14 | 2014-05-14 | Automatic control method for pre-shrinking rate of pre-shrinking and finishing combined machine |
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| CN201410203122.0A CN103955235B (en) | 2014-05-14 | 2014-05-14 | Automatic control method for pre-shrinking rate of pre-shrinking and finishing combined machine |
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| CN103955235A CN103955235A (en) | 2014-07-30 |
| CN103955235B true CN103955235B (en) | 2017-01-25 |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2148342B (en) * | 1983-10-17 | 1987-07-08 | Cluett Peabody & Co Inc | Method and apparatus for compressive shrinkage of textile fabric |
| CN2700366Y (en) * | 2004-02-24 | 2005-05-18 | 郑州纺织机械股份有限公司 | Synchronous control device for electronic side shaft |
| CN2801849Y (en) * | 2005-06-28 | 2006-08-02 | 黄豪宇 | Preshrinking finishing joint machine for knitted fabric |
| US20070048491A1 (en) * | 2005-08-23 | 2007-03-01 | Couristan Inc. | Water resistant carpet and method of manufacture the same |
| CN201553899U (en) * | 2009-11-10 | 2010-08-18 | 张家港市友成高新材料有限公司 | Stentering pre-shrinking combination machine |
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2014
- 2014-05-14 CN CN201410203122.0A patent/CN103955235B/en active Active
Non-Patent Citations (1)
| Title |
|---|
| 在线监控用于预缩机的探讨与实践;王强华;《染整技术》;20050630;第27卷(第6期);第34-36页 * |
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