CN104238442B - Stepless changing lay pitch tubular stranding machine burst power failure protection circuit - Google Patents
Stepless changing lay pitch tubular stranding machine burst power failure protection circuit Download PDFInfo
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- CN104238442B CN104238442B CN201410462992.XA CN201410462992A CN104238442B CN 104238442 B CN104238442 B CN 104238442B CN 201410462992 A CN201410462992 A CN 201410462992A CN 104238442 B CN104238442 B CN 104238442B
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Abstract
The present invention relates to a kind of stepless changing lay pitch tubular stranding machine burst power failure protection circuit, it is characterised in that it includes uninterrupted power source, programmable logic controller (PLC), twisted wire converter, traction frequency convertor, take-up converter and loss of power testing circuit；Programmable logic controller (PLC) is supplied electricity to by uninterrupted power source；Twisted wire converter, traction frequency convertor, take-up converter link together with programmable logic controller (PLC) respectively；Twisted wire converter, traction frequency convertor and take-up converter are connected in parallel, the self-powered missing detecting circuit of twisted wire converter and function, and an input point of programmable logic controller (PLC) connects loss of power testing circuit.The present invention has and can meet with when having a power failure suddenly in stepless changing lay pitch tubular stranding machine running, remains to the advantage maintaining the normal operating conditions of converter and motor.
Description
Technical field
The present invention relates to a kind of burst power failure protection circuit; particularly relate to a kind of operating stepless changing lay pitch tubular stranding machine; when meeting with burst power supply and losing, electrical control can guarantee that the burst power failure protection circuit that the lay pitch at the steel wire rope twisted with the fingers in whole docking process is constant.
Background technology
Existing stepless changing lay pitch tubular stranding machine is twisting device conventional in metallic article field, stepless changing lay pitch tubular stranding machine schematic diagram as shown in Figure 1, it includes that twisted wire cylinder, traction wheel, Receiving wire wheel, twisted wire converter, twisted wire drive motor, traction frequency convertor, traction drive motor, take-up converter and take-up to drive motor, twisted wire drives motor to be connected with twisted wire cylinder, traction drive motor is connected with traction wheel, and take-up drives motor to be connected with Receiving wire wheel；Twisted wire converter and the connection of twisted wire motor, traction frequency convertor and traction electric machine connection, take-up converter and take-up motor connect；While twisted wire cylinder rotates, traction wheel drives before steel wire and then is twisted into steel wire rope, the steel wire rope being twisted into is wound by Receiving wire wheel again, twisted wire converter and the speed preset ratio of traction frequency convertor is adjusted again by PLC (programmable logic controller (PLC)), i.e. adjust the rotating ratio between twisted wire motor and traction electric machine, the steel wire rope of different lay pitch specification can be gone out with twisting.
Stepless changing lay pitch tubular stranding machine meets with when having a power failure suddenly in running, converter and motor quit work because of dead electricity, then twisted wire cylinder, traction wheel and I-beam wheel distinguish art skating parking because losing driving power, and the length of down time is determined by respective inertia and resistance.The inertia of twisted wire cylinder is maximum, rotating speed is the highest, even if being directly braked cylinder, its down time is also much longer relative to traction wheel and Receiving wire wheel.Therefore, when take-up and traction stop, twisted wire cylinder can still rotate, thus causes the lay pitch at the steel wire rope twisted with the fingers to diminish, and causes wire rope lay pitch inaccurate and the destruction of mechanical property, directly the most disconnected by strand.So, common stepless changing lay pitch tubular stranding machine meets with suddenly when having a power failure in running, can cause scrapping at twist composite steel rope, thus cause loss greatly, and when the thick specification wire rope of twisting, loss is particularly acute.
Summary of the invention
For disadvantages mentioned above; it is an object of the invention to provide a kind of stepless changing lay pitch tubular stranding machine burst power failure protection circuit; it solves to meet with in the stepless changing lay pitch tubular stranding machine running when having a power failure suddenly; remain to maintain converter and the normal operating conditions of motor; allow twisted wire cylinder, traction wheel, Receiving wire wheel in the case of motor-driven; realize synchronizing ramp to stop, it is ensured that the lay pitch requirement of steel wire rope in docking process.
The technology contents of the present invention is: stepless changing lay pitch tubular stranding machine burst power failure protection circuit, it is characterised in that it includes UPS (uninterrupted power source), PLC (programmable logic controller (PLC)), twisted wire converter, traction frequency convertor, take-up converter and loss of power testing circuit；PLC is supplied electricity to by UPS；Twisted wire converter, traction frequency convertor, take-up converter link together with PLC respectively；Twisted wire converter, traction frequency convertor and take-up converter are connected in parallel, the self-powered missing detecting circuit of twisted wire converter and function, and an input point of PLC connects loss of power testing circuit；Loss of power testing circuit includes optocoupler, current-limiting resistance and diode；Current-limiting resistance is connected with optocoupler input, and Diode series is between optocoupler and current-limiting resistance.
The present invention is the most advantageously: can be in operation experience burst when having a power failure by Reliable guarantee stepless changing lay pitch tubular stranding machine, twisted wire cylinder, traction wheel and Receiving wire wheel can synchronize to stop, thus ensure that the lay pitch of steel wire rope, in the range of requiring, reaches to ensure when burst has a power failure the effect of wire rope lay pitch requirement.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of existing stepless changing lay pitch tubular stranding machine.
Fig. 2 is the circuit block diagram of the present invention.
Fig. 3 is loss of power testing circuit schematic diagram in the present invention.
Fig. 4 is that the present invention happens suddenly the flow chart of power failure protection circuit.
Detailed description of the invention
As shown in Figure 1, existing stepless changing lay pitch tubular stranding machine includes that twisted wire cylinder 1, traction wheel 2, Receiving wire wheel 3, twisted wire drive motor 4, traction drive motor 5 and take-up to drive motor 6, twisted wire drives motor 4 to be connected with twisted wire cylinder 1, traction drive motor 5 is connected with traction wheel 2, and take-up drives motor 6 to be connected with Receiving wire wheel 3.
As shown in Figures 2 and 3; stepless changing lay pitch tubular stranding machine burst power failure protection circuit, it is characterised in that it includes UPS (uninterrupted power source), PLC (programmable logic controller (PLC)), twisted wire converter, traction frequency convertor, take-up converter and loss of power testing circuit；PLC is supplied electricity to by UPS；Twisted wire converter, traction frequency convertor, take-up converter are linked together with PLC by high-speed bus respectively；Twisted wire converter, traction frequency convertor and take-up converter are connected in parallel by dc bus, the self-powered missing detecting circuit of twisted wire converter and function, and an input point of PLC connects loss of power testing circuit；Loss of power testing circuit includes optocoupler OC, current-limiting resistance R and diode D；Current-limiting resistance R is connected with optocoupler OC input, and diode D is connected between optocoupler OC and current-limiting resistance R；Twisted wire converter and twisted wire drive motor 4 to connect, traction frequency convertor and traction drive motor 5 connects, take-up converter and take-up drive motor 6 to connect.
As shown in Figure 4, when stepless changing lay pitch tubular stranding machine runs, have in the twisted wire cylinder of bigger machinery inertial and store bigger mechanical kinetic energy, when experience has a power failure suddenly, drive the twisted wire converter of twisted wire cylinder after loss of power being detected, twisted wire cylinder drives twisted wire to drive motor that the kinetic energy of twisted wire cylinder is converted into electric energy, and the electric energy of generation is supplied to traction frequency convertor and take-up converter, by traction frequency convertor and take-up converter electric energy passed to traction drive motor again and take-up drives motor, thus maintain traction wheel and Receiving wire wheel work；PLC is after loss of power testing circuit obtains loss of power signal simultaneously, coordinates twisted wire cylinder, traction wheel, the rotating speed of Receiving wire wheel, to realize promptly synchronizing reduction of speed parking, it is ensured that constant in the lay pitch of the steel wire rope twisted with the fingers；UPS effect is, continues as PLC etc. and control part continuation offer working power after power failure.
Claims (1)
1. stepless changing lay pitch tubular stranding machine burst power failure protection circuit, it is characterised in that it includes uninterrupted power source, programmable logic controller (PLC), twisted wire converter, traction frequency convertor, take-up converter and loss of power testing circuit；Programmable logic controller (PLC) is supplied electricity to by uninterrupted power source；Twisted wire converter, traction frequency convertor, take-up converter link together with programmable logic controller (PLC) respectively；Twisted wire converter, traction frequency convertor and take-up converter are connected in parallel, the self-powered missing detecting circuit of twisted wire converter and function, and an input point of programmable logic controller (PLC) connects loss of power testing circuit；Loss of power testing circuit includes optocoupler, current-limiting resistance and diode；Current-limiting resistance is connected with optocoupler input, and Diode series is between optocoupler and current-limiting resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410462992.XA CN104238442B (en) | 2014-09-12 | 2014-09-12 | Stepless changing lay pitch tubular stranding machine burst power failure protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410462992.XA CN104238442B (en) | 2014-09-12 | 2014-09-12 | Stepless changing lay pitch tubular stranding machine burst power failure protection circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104238442A CN104238442A (en) | 2014-12-24 |
| CN104238442B true CN104238442B (en) | 2016-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410462992.XA Expired - Fee Related CN104238442B (en) | 2014-09-12 | 2014-09-12 | Stepless changing lay pitch tubular stranding machine burst power failure protection circuit |
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| Country | Link |
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| CN (1) | CN104238442B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112018720B (en) * | 2019-05-31 | 2024-08-16 | 核工业理化工程研究院 | Power supply system power failure protection method and protection system based on PLC control |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6477183A (en) * | 1987-09-18 | 1989-03-23 | Nec Corp | Circuit for driving light emitting diode |
| CN2319845Y (en) * | 1997-12-24 | 1999-05-19 | 樊坚 | Digitally fixed length and disconnection self-stopping control instrument for twiner |
| JP4081195B2 (en) * | 1998-12-31 | 2008-04-23 | 株式会社ブリヂストン | Soundproof device for tubular type twisted wire machine |
| US6639461B1 (en) * | 2001-08-30 | 2003-10-28 | Sierra Monolithics, Inc. | Ultra-wideband power amplifier module apparatus and method for optical and electronic communications |
| CN201556075U (en) * | 2009-09-24 | 2010-08-18 | 武汉同力机电有限公司 | Novel practical full-digital control device for strander |
| CN203546486U (en) * | 2013-09-13 | 2014-04-16 | 江苏科为焊业有限公司 | Control device of double-twisting strander |
| CN204129490U (en) * | 2014-09-12 | 2015-01-28 | 江阴鼎天科技有限公司 | Stepless changing lay pitch tubular stranding machine burst power failure protection circuit |
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2014
- 2014-09-12 CN CN201410462992.XA patent/CN104238442B/en not_active Expired - Fee Related
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| CN104238442A (en) | 2014-12-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wu Qiang Inventor after: He Guoqiang Inventor after: Hu Jinlian Inventor after: Huang Cheng Inventor after: Chang Yongwang Inventor before: Wu Qiang Inventor before: He Guoqiang Inventor before: Hu Jinlian Inventor before: Huang Cheng |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WU QIANG HE GUOQIANG HU JINLIAN HUANG CHENG TO: WU QIANG HE GUOQIANG HU JINLIAN HUANG CHENG CHANG YONGWANG |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 214433 Jiangsu city of Wuxi province Jiangyin Panlong Road No. 28-1 Applicant after: JIANGYIN DINGTIAN TECHNOLOGY CO., LTD. Applicant after: FASTEN GROUP CO., LTD. Address before: 214433 Jiangsu city of Wuxi province Jiangyin Panlong Road No. 28-1 Applicant before: JIANGYIN DINGTIAN TECHNOLOGY CO., LTD. Applicant before: Fasten Group Co., Ltd. |
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| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 Termination date: 20180912 |