CN106337207B - Polyethylene fibre drafting process fracture of wire automatic detection device and its detection method - Google Patents
Polyethylene fibre drafting process fracture of wire automatic detection device and its detection method Download PDFInfo
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- CN106337207B CN106337207B CN201510402407.1A CN201510402407A CN106337207B CN 106337207 B CN106337207 B CN 106337207B CN 201510402407 A CN201510402407 A CN 201510402407A CN 106337207 B CN106337207 B CN 106337207B
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Abstract
The invention discloses a kind of polyethylene fibre drafting process fracture of wire automatic detection devices, including temperature detecting element one-to-one with tow, environment temperature detecting element, detection scan loop, PLC, alarm and upper location supervisory, the strand temperature signal detected is judged whether generation fracture of wire by each temperature detecting element by detecting scan loop, environment temperature detecting element and sending to PLC to be compared by the ambient temperature signal detected, and the PLC is connect respectively with alarm and upper location supervisory.The present invention by the strand temperature in each effective road of scan round and it is compared with environment temperature, meet the requirement that high-performance polyethylene fibres fracture of wire in drafting process detects automatically, it can accomplish to find fracture of wire in time, there is fracture of wire in which root silk of accurately alarming, effect is good, it is efficient, labor intensity is alleviated, meets the requirement that art production process detects fracture of wire automatically.
Description
Technical field
The present invention relates to spinning production technical fields, and in particular to a kind of fracture of wire automatic detection device.
Background technology
In drafting process in high-performance polyethylene fibres spinning process units, the detection of the fracture of wire seen both at home and abroad should
With such as Chinese patent " production technology and device of aramid fiber cored polyethylene fibre line ", the patent No. 201110462872.6 is introduced
Aramid fiber cored polyethylene fibre production line production technology and device pass through optical sensor and detect fracture of wire in production process.
Domestic literature " photo-electric spy silk sensor "《Textile machine》4th phase in 2004 describes and visits the detection of silk sensor with photo-electric
Fracture of wire.
Existing photo-electric is visited silk sensor and the motion state of fiber is detected using infrared electro principle, works as fiber
When normal, the actions such as drawing-off or winding due to machine, the fiber in sensor U-lag has shake, this shake can not
The transmitting and reception of the right and left infrared light in U-lag are blocked disconnectedly, it is made to generate continuous infrared pulse；When filament disconnects
After, which reduces or disappears, and yarn probe is by detecting and judging that the frequency of infrared pulse can determine whether fibre
Whether dimension has disconnected.The detection of high-performance polyethylene fibres drafting process fracture of wire is located at hot tank exit, and tow is located at draft apparatus
Between, and thering is many places sub-wire fork to position per share tow, tow drafting process is almost without shake.In addition, photo-electric is broken
Silk detection installation space has certain requirement, there is certain effect to the single tow loosely shaken, but for multiply silk side by side
Beam, distance is small between tow, also can not the numerous photoelectricity yarn probe of installation number, the method is not suitable for high-performance polyethylene fibre
Tie up the fracture of wire detection of drafting process.
There is fracture of wire in high-performance polyethylene fibres drafting process, need to find to mend in time in time to break, it is only logical at present
Cross each silk road of artificial tours of inspection, time-consuming and laborious to take a lot of work, inefficiency.
Invention content
Goal of the invention：It is drawn through in view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of polyethylene fibre
Journey fracture of wire automatic detection device and its detection method can carry out fracture of wire automatic detection device to multiple tow simultaneously, realize automatic
Alarm, and can determine that fracture of wire occurs in which specific tow.
Technical solution：A kind of polyethylene fibre drafting process fracture of wire automatic detection device, including one-to-one with tow
Temperature detecting element, environment temperature detecting element, detection scan loop, PLC, alarm and upper location supervisory, each temperature
The strand temperature signal detected is passed through the environment that detects scan loop, environment temperature detecting element will detect by detecting element
Temperature signal, which send to PLC to be compared, judges whether that fracture of wire occurs, and the PLC connects respectively with alarm and upper location supervisory
It connects.
Further, the temperature detecting element is separated by dividing guide is fixed on pedestal, it is made to be exported with hot tank each
Stock tow corresponds to.
Further, the detection scan loop is made of the miniature relay being connected with temperature detecting element one-to-one correspondence,
Each relay has two groups of independent contacts, by PLC cycles make each relay successively it is electric, each relay turn-on time is
Time1, then dead electricity, PLC is sent the corresponding temperature signal of per share tow by the contact of each relay.Time1 passes through
The upper location supervisory setting, value range are 2 ~ 60 seconds.
The detection method of above-mentioned polyethylene fibre drafting process fracture of wire automatic detection device, includes the following steps：
（1）System initialization, PLC controls detect scan loop by the temperature measured by temperature detecting element under current working
The original floor data storage of ambient temperature signal T0 deposits PLC that value T1 ~ Tn signals and environment temperature detecting element detect
In area DM1 ~ DMn；
（2）PLC system carries out initial analysis to original floor data, T1 ~ Tn is compared respectively with T0, if difference is small
In Tem1, judge, if difference is more than Tem2, to judge there is tow to deposit under the original operating mode in this road without tow under the original operating mode in this road
；To have under operating mode original after judgement in silk Taoist monastic name deposit PLC specified datas storage portions existing for tow, initialization terminates,
System is transferred to normal detection working condition；
（3）PLC is by detecting scan loop loop control temperature detecting element to having silk existing for tow under original operating mode
Taoist monastic name carries out temperature detection, the temperature value of current surveyed tow is compared with T0 ambient temperature values, if temperature gap is more than
Tem2 assert that tow is normal, and no fracture of wire occurs；If temperature gap is less than Tem1, assert that fracture of wire has occurred in this strand of tow, by
PLC sends out alarm signal, controls onsite alarming device alert, and corresponding silk Taoist monastic name is shown on alarm；Behaviour
Make personnel's benefit to have no progeny, rescan after detecting that temperature gap is more than Tem2, assert that tow is normal, this road stubble warning device signal
Automatic to eliminate, upper location supervisory record fracture of wire silk Taoist monastic name, mends the disconnected time at the fracture of wire time.
Further, Tem1 and Tem2 are set by upper location supervisory, and the value range of Tem1 is 8-14 DEG C, the model of Tem2
It is 15 ~ 30 DEG C to enclose value.
Advantageous effect：The present invention is carried out by the strand temperature in each effective road of scan round and by itself and environment temperature
It compares, meets the requirement that high-performance polyethylene fibres fracture of wire in drafting process detects automatically, can accomplish to find fracture of wire in time,
There is fracture of wire in which root silk of accurately alarming, and effect is good, efficient, alleviates labor intensity, meets art production process to disconnected
The requirement that silk detects automatically.
Description of the drawings
Fig. 1 is the structure diagram of fracture of wire automatic detection device；
Fig. 2 is the structure diagram of temperature detecting element on pedestal；
Fig. 3 is the system schematic of fracture of wire automatic detection device.
Specific embodiment
Technical solution of the present invention is described in detail below, but protection scope of the present invention is not limited to the implementation
Example.
Embodiment：A kind of polyethylene fibre drafting process fracture of wire automatic detection device, as shown in Figure 1, 2, 3, by detector
It pedestal 1 and is fixed on the temperature detecting element T1 ~ Tn separated on pedestal 1 by dividing guide P1 ~ Pn, is arranged on 1 bottom of pedestal
Environment temperature detecting element T0, detection scan loop 3, PLC system, alarm 4 and upper location supervisory 5 form, each temperature
Detecting element T1 ~ Tn corresponds to one tow of the outlet of hot tank 2, shares F1 ~ Fn sub-thread tow, when through 2 drawing-off of superheated header, silk
Beam through 2 side of hot tank enter, go out after heating from opposite side, each sub-thread tow by its corresponding temperature detecting element T1 ~
Tn is simultaneously in contact with it, and temperature detecting element T1 ~ Tn obtains the temperature value of tow.Detect scan loop 3 by with temperature detecting element
T1 ~ Tn corresponds connected miniature relay composition, and each relay has two groups of independent contacts, makes each relay by PLC cycles
Device successively it is electric, each relay turn-on time is Time1, gives tacit consent to 5s, then dead electricity will be every by the contact of each relay
The corresponding temperature signal of a sub-thread tow is sent into PLC processing.Since 2 temperature of hot tank is higher, tow is bright in 2 outlet temperature of hot tank
It is aobvious to be higher than environment temperature, cycle detection is carried out to each sub-thread strand temperature of 2 exit of hot tank by detecting scan loop 3,
Detection temperature with the environment temperature measured by environment temperature detecting element T0 is compared one by one, automatically confirms that whether there is by PLC
Fracture of wire occurs, and PLC is connected respectively with alarm 4 and upper location supervisory 5.
The detection method of above-mentioned fracture of wire automatic detection device is that real-time temperature values T1 ~ Tn of sub-thread tow F1 ~ Fn is carried out
Scan round is simultaneously compared with original state temperature value T0, abnormal temperature is occurred and is lower, you can determines which root tow breaks
Silk is alarmed on alarm panel and is recorded by upper location supervisory 5, is as follows at the scene：
（1）After fracture of wire detecting system starts, system initialization, PLC controls detect scan loop 3 by temperature under current working
The ambient temperature signal T0 deposits that temperature value T1 ~ Tn signals and environment temperature detecting element measured by detecting element detect
In original floor data storage portions DM1 ~ DMn of PLC；
（2）PLC system carries out initial analysis to original floor data, T1 ~ Tn is compared respectively with T0, if difference is small
In Tem1,10 DEG C are given tacit consent to, judge, without tow under the original operating mode in this road, if difference is more than Tem2, to give tacit consent to 15 DEG C, judge this road
With the presence of tow under original operating mode；There to be silk Taoist monastic name deposit PLC specified datas existing for tow to deposit under operating mode original after judgement
It stores in area, initialization terminates, and system is transferred to normal detection working condition；
（3）PLC is by detecting 3 loop control temperature detecting element of scan loop to having silk existing for tow under original operating mode
Taoist monastic name carries out temperature detection, the temperature value of current surveyed tow is compared with T0 ambient temperature values, if temperature gap is more than
Tem2 assert that tow is normal, and no fracture of wire occurs；If temperature gap is less than Tem1, assert that fracture of wire has occurred in this strand of tow, by
PLC sends out alarm signal, 4 alert of control onsite alarming device, and corresponding silk Taoist monastic name is shown on alarm 4；
Operating personnel mend and have no progeny, and rescan after detecting that temperature gap is more than Tem2, assert that tow is normal, this road stubble warning device letter
Number automatic to eliminate, upper location supervisory 5 records fracture of wire silk Taoist monastic name, fracture of wire time, mends the disconnected time.
Claims (6)
1. a kind of polyethylene fibre drafting process fracture of wire automatic detection device, it is characterised in that：Including one-to-one with tow
Temperature detecting element, environment temperature detecting element, detection scan loop, PLC, alarm and upper location supervisory, each temperature
Detecting element send the strand temperature signal detected to PLC by detecting scan loop, and environment temperature detecting element will detect
To ambient temperature signal send to PLC, PLC, which is compared, judges whether to occur fracture of wire, the PLC respectively with alarm and upper
Monitoring system connects.
2. polyethylene fibre drafting process fracture of wire automatic detection device according to claim 1, it is characterised in that：The temperature
Degree detecting element is separated by dividing guide to be fixed on pedestal, it is made to be exported with hot tank corresponding per one tow.
3. polyethylene fibre drafting process fracture of wire automatic detection device according to claim 1, it is characterised in that：The inspection
It surveys scan loop to be made of the miniature relay being connected with temperature detecting element one-to-one correspondence, each relay has two groups independently to touch
Point, by PLC cycles make each relay successively it is electric, each relay turn-on time is Time1, then dead electricity, by every
The corresponding temperature signal of per share tow is sent into PLC by the contact of a relay.
4. polyethylene fibre drafting process fracture of wire automatic detection device according to claim 3, it is characterised in that：Time1
It is set by the upper location supervisory, value range is 2 ~ 60 seconds.
5. a kind of detection method of polyethylene fibre drafting process fracture of wire automatic detection device as described in claim 1, special
Sign is：Include the following steps：
（1）System initialization, PLC controls detect scan loop by the temperature value T1 measured by temperature detecting element under current working
The original floor data storage portions of ambient temperature value T0 signals deposit PLC that ~ Tn signals and environment temperature detecting element detect
In；
（2）PLC system carries out initial analysis to original floor data, T1 ~ Tn is compared respectively with T0, if difference is less than
Tem1 judges, if difference is more than Tem2, to judge have tow to deposit under the original operating mode in this road without tow under the original operating mode in this road
；To have under operating mode original after judgement in silk Taoist monastic name deposit PLC specified datas storage portions existing for tow, initialization terminates,
System is transferred to normal detection working condition；
（3）PLC is by detecting scan loop loop control temperature detecting element to having silk Taoist monastic name existing for tow under original operating mode
Temperature detection is carried out, the temperature value of current surveyed tow is compared with ambient temperature value T0, if temperature gap is more than Tem2,
Assert that tow is normal, no fracture of wire occurs；If temperature gap is less than Tem1, assert that fracture of wire has occurred in this strand of tow, sent out by PLC
Alarm signal controls onsite alarming device alert, and corresponding silk Taoist monastic name is shown on alarm；Operating personnel mend
It has no progeny, rescans after detecting that temperature gap is more than Tem2, assert that tow is normal, this road stubble warning device signal disappears automatically
It removes, upper location supervisory record fracture of wire silk Taoist monastic name, mends the disconnected time at the fracture of wire time.
6. detection method according to claim 5, it is characterised in that：Tem1 and Tem2 are set by upper location supervisory,
The value range of Tem1 is 8-14 DEG C, and the value range of Tem2 is 15 ~ 30 DEG C.
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| CN201510402407.1A CN106337207B (en) | 2015-07-10 | 2015-07-10 | Polyethylene fibre drafting process fracture of wire automatic detection device and its detection method |
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| CN106337207B true CN106337207B (en) | 2018-06-29 |
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| CN108326206B (en) * | 2018-04-13 | 2023-07-28 | 中海油(山西)贵金属有限公司 | Control system for warping machine, warping machine and warping machine control method |
| CN111063159A (en) * | 2019-12-26 | 2020-04-24 | 冯玉辉 | Rear spinning drafting broken yarn alarm system |
| CN113564740A (en) * | 2020-04-29 | 2021-10-29 | 中国石油化工股份有限公司 | Automatic detection device and detection method for broken filaments in fiber tow winding process |
| CN113567460A (en) * | 2020-04-29 | 2021-10-29 | 中国石油化工股份有限公司 | Automatic detection device and detection method for broken filaments in drafting process based on image recognition |
| CN113802196A (en) * | 2021-10-21 | 2021-12-17 | 荣成碳纤维科技有限公司 | Carbon fiber precursor production steam drafting device with automatic shredding and collecting device |
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| CN202152391U (en) * | 2011-07-04 | 2012-02-29 | 无锡金通化纤有限公司 | Filament-break detection and automatic creeling device for single chemical fiber filaments |
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| JPH06220711A (en) * | 1993-01-28 | 1994-08-09 | Tanaka Kikinzoku Kogyo Kk | Spinneret |
| JPH0986795A (en) * | 1995-09-27 | 1997-03-31 | Toray Eng Co Ltd | Error detection method for traveling yarn and device therefor |
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| CN101748533A (en) * | 2009-12-17 | 2010-06-23 | 北京特斯顿新材料技术发展有限公司 | Draft process and equipment thereof for polyethylene fibres with superhigh molecular weight |
| CN202152391U (en) * | 2011-07-04 | 2012-02-29 | 无锡金通化纤有限公司 | Filament-break detection and automatic creeling device for single chemical fiber filaments |
| CN202466001U (en) * | 2012-03-09 | 2012-10-03 | 江门市宝利德塑料有限公司 | Automatic alarm for wire breakage of plastic wire drawing |
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