CN106444615A - Instant starting and stopping delaying circuit and adhesive tape machine including circuit - Google Patents
Instant starting and stopping delaying circuit and adhesive tape machine including circuit Download PDFInfo
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- CN106444615A CN106444615A CN201611048000.4A CN201611048000A CN106444615A CN 106444615 A CN106444615 A CN 106444615A CN 201611048000 A CN201611048000 A CN 201611048000A CN 106444615 A CN106444615 A CN 106444615A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/11—Plc I-O input output
- G05B2219/1103—Special, intelligent I-O processor, also plc can only access via processor
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Relay Circuits (AREA)
Abstract
The invention relates to an instant starting and stopping delaying circuit and an adhesive tape machine including the circuit. The instant starting and stopping delaying circuit comprises a first power supply, a second power supply, a starting switch QA, a stopping switch TA, a delay relay SJ1, a time relay SJ2, a relay J, a main contactor KM and a controlled part, wherein the stopping switch TA is arranged as a normally closed switch; after a coil of the main contactor KM is electrified, the controlled part starts to work; after the coil of the main contactor KM is powered off, the controlled part stops working; when the delay relay SJ1 is electrified, a normally opening instant closing delay of the delay relay SJ1 is disconnected while a contact is instantly closed; when the delay relay SJ1 is powered off, the normally opening instant closing delay of the delay relay SJ1 is disconnected while the contact delay is disconnected. A de-ironing separator is arranged above the tape surface of the adhesive tape machine and the adhesive tape machine including the instant starting and stopping delaying circuit is used for controlling the de-ironing separator to work before the rotation of the belt of the adhesive tape machine and stop after the stopping of the belt, so that the condition that a worker runs back and forth to control is avoided, and the energy source is saved.
Description
Technical field
The present invention relates to mould applications, more particularly, to a kind of wink open the sealing-tape machine prolonging power failure road and including this circuit.
Background technology
Sealing-tape machine is unique channel that fully-mechanized mining working produces coal, the coal that in current production process, fully-mechanized mining working is produced
It is both needed to outwards transport by sealing-tape machine.It is responsible for the ironware removing in coal with sealing-tape machine matching used tramp iron separator device, right
The transportation safety of next link of coal has vital effect.Sealing-tape machine before activation can be by manually starting first at present
Tramp iron separator device, sealing-tape machine manually stops tramp iron separator device after shutting down again, relies on magnetic force to transport coal in order to Adsorption from working face
Ironware in charcoal.As long as sealing-tape machine is opened it is necessary to the personnel of arrangement start accordingly in working face each start-stop adhesive tape and close
Close tramp iron separator device switch, between not only causing labor strength big it is often more important that driving to next time after sealing-tape machine parking
Tramp iron separator device power consumption, causes electricity to waste, increases cost of ton coal.
Content of the invention
The technical problem to be solved of the present invention is to need to arrange for personnel corresponding in working face each start-stop adhesive tape
Startup and close tramp iron separator device switch.The present invention employs the following technical solutions and solves above-mentioned technical problem：
Open in a kind of wink and prolong power failure road it is characterised in that including the first power supply, second source, activate switch QA, shutdown switch
TA, time-delay relay SJ1, time relay sj 2, relay J, main contactor KM, controlled part；Described shutdown switch TA is normal
Make and break is closed；The coil of described main contactor KM obtain electric after, controlled part is started working；The coil losing electricity of described main contactor KM
Afterwards, controlled part quits work；
When described time-delay relay SJ1 obtains electric, the normally opened instantaneous make delay break contact of time-delay relay SJ1 instantaneously closes
Close, during dead electricity, the normally opened instantaneous make delay break contact time delay of time-delay relay SJ1 disconnects；This circuit include the first circuit,
Second circuit, tertiary circuit, the 4th circuit；
Described first circuit is described activate switch QA, shutdown switch TA, the coil of time relay sj 2 are connected in series in
On first power supply；
Described second circuit is the normal opened contact of described time relay sj 2 and the coil of relay J is connected on the first electricity
On source, the normally opened instantaneous make delay that the two ends of the normal opened contact of described time relay sj 2 are parallel with time-delay relay SJ1 is broken
Open contact；
Described tertiary circuit is the normal opened contact of described relay J and the coil of described main contactor KM is connected in series in
On two power supplys；
Described 4th circuit is normal opened contact, the normal opened contact of time relay sj 2 and the time delay of described main contactor KM
The coil of relay SJ1 is connected on second source.
Further, the normal opened contact QA and shutdown switch TA of relay J described in described activate switch is button, unclamps wink
Between activate switch QA and shutdown switch TA automatically reset, on described first circuit, the two ends of activate switch QA are parallel with the time and continue
The normal opened contact of electrical equipment SJ2.
Further, also include the first normal open switch SB1 and the second normally closed switch SB2, described first normal open switch SB1 is simultaneously
It is associated in the two ends of the normal opened contact of tertiary circuit repeat circuit J, described second normally closed switch SB2 is arranged in tertiary circuit relaying
Between the coil of the normal opened contact of electrical equipment J and main contactor KM.
Further, described tertiary circuit also includes fuse, described safeties are arranged on second source delivery outlet.
Further, described first power supply is direct current 24V, and described second source is direct current 36V.
Further, described first power supply is become through transformer by 127V direct current and obtains, and described second source is handed over by 660V
Stream electricity obtains through transformer change.
The sealing-tape machine prolonging power failure road is opened in a kind of inclusion above-mentioned wink, described sealing-tape machine also include interlock control cabinet, PLC,
Velocity sensor SD, described controlled part is tramp iron separator device, and tramp iron separator device is arranged on above sealing-tape machine zone face, described PLC,
The power end of velocity sensor SD, tramp iron separator device are connected with interlock control cabinet respectively, the letter of described velocity sensor SD
Number end is connected with the input of PLC, and described velocity sensor SD is arranged on the belt both sides of sealing-tape machine.
Further, described sealing-tape machine also includes speed sensorless control switch S1, described speed sensorless control switch
S1 is connected in parallel on the two ends of the normally opened instantaneous make delay break contact of the time-delay relay SJ1 in the first circuit.
It is an advantage of the current invention that：
(1) present invention is rotated using the belt on sealing-tape machine during sealing-tape machine power initiation and has certain delay, but opens
Dynamic switch QA presses moment tramp iron separator device and begins to work.After the stopping of sealing-tape machine belt due to inertia also can move one section when
Between, now open in wink and prolong in power failure road using time-delay relay, even if shutdown switch TA disconnects, tramp iron separator device can also continue work
Make, will continue away due to the iron on the belt of inertia motion, be so capable of tramp iron separator device before sealing-tape machine starts and open
Dynamic, when sealing-tape machine stops, opened by wink and prolong power failure road come time delay stopping tramp iron separator installation's power source.It is not required to control of will manually running back and forth
System, also saves the energy.
(2) velocity sensor is provided with sealing-tape machine in the present invention, so time delay is served to the effect of duplicate protection,
After shutdown switch TA disconnects, belt is being rotated due to inertia, and speed sensorless control switch S1 closure also can reach tramp iron separator
The requirement that device works on.
Brief description
Fig. 1 is to open the first circuit and the second circuit prolonging in power failure road wink.
Fig. 2 is to open the tertiary circuit prolonging in power failure road and the 4th circuit wink.
Fig. 3 is tramp iron separator device and opens the system schematic prolonging power failure road wink.
Specific embodiment
Below embodiments of the invention are elaborated, the present embodiment is carried out under premised on technical solution of the present invention
Implement, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following enforcements
Example.
Embodiment 1
As shown in Figure 1-2, open in a kind of wink and prolong power failure road, including the first power supply, second source, activate switch QA, stop opening
Close TA, time-delay relay SJ1, time relay sj 2, relay J, main contactor KM, controlled part.
First power supply is obtained through transformer change by 127V direct current, and second source is become through transformer by 660V alternating current
Arrive.First power supply is direct current 24V, and second source is direct current 36V.
Wherein shutdown switch TA normally closed switch.Optimize, activate switch QA and shutdown switch TA are button, unclamp moment and open
Dynamic switch QA and shutdown switch TA automatically resets.The coil of main contactor KM obtain electric after, controlled part is started working；Main contactor
After the coil losing electricity of KM, controlled part quits work.
When time-delay relay SJ1 obtains electric, the normally opened instantaneous make delay break contact of time-delay relay SJ1 instantaneously closes,
During dead electricity, the normally opened instantaneous make delay break contact time delay of time-delay relay SJ1 disconnects.
This circuit includes the first circuit, second circuit, tertiary circuit, the 4th circuit.
First circuit is activate switch QA, shutdown switch TA, the coil of time relay sj 2 are connected in series in the first power supply
On 24V direct current, optimization, the two ends of activate switch QA are parallel with the normal opened contact of time relay sj 2.Due to activate switch
QA flicks after pressing immediately, and before flicking, the normal opened contact of relay SJ2 is closed, so the first circuit is still constituted back
Road.
Second circuit is the normal opened contact of time relay sj 2 and the coil of relay J is connected on the first power supply 24V direct current
On electricity, the normally opened instantaneous make delay that the two ends of the normal opened contact of time relay sj 2 are parallel with time-delay relay SJ1 disconnects and touching
Point；
Tertiary circuit is fuse, the normal opened contact of relay J, the coil of main contactor KM are connected in series in second source
On 36V direct current.Optimize, open in wink and prolong power failure road and also include the first normal open switch SB1 and the second normally closed switch SB2, first is normal
Switch SB1 is connected in parallel on the two ends of the normal opened contact of tertiary circuit repeat circuit J, and the second normally closed switch SB2 is arranged at the 3rd
Between the normal opened contact of circuit relay electrical equipment J and the coil of main contactor KM.Wherein first normal open switch SB1 is original tramp iron separator
The activate switch of device Non-follow control, the second normally closed switch SB2 is the shutdown switch of original tramp iron separator device Non-follow control, this wink
Qi Yan power failure road does not need to change the structure of primary circuit, is tieed up when opening in wink to prolong still can control when breaking down in power failure road
Repair, and the operation on sealing-tape machine does not produce impact.
4th circuit is normal opened contact, the normal opened contact of time relay sj 2 and the time-delay relay SJ1 of main contactor KM
Coil be connected on second source.
Open in this wink prolong power failure road the course of work as follows：
After pressing activate switch QA, the first circuit constitutes loop, and the coil of time relay sj 2 has electricity, then the time continue
The normal opened contact closure of electrical equipment SJ2, then second circuit composition loop, relay J obtains electric, the normal opened contact closure of relay J, the
Three-circuit constitutes loop, and the coil of its main contactor KM1 obtains electric, and now, controlled part is started working.
Due to the coil of main contactor KM1 obtain electric, then main contactor KM1 normal opened contact closure, because now the time continues
The normal opened contact closure of electrical equipment SJ2, the 4th circuit constitutes loop, and the coil of the time-delay relay SJ1 in the 4th loop obtains electric.This
Sample is achieved that the instantaneous starting of controlled part.
When pressing shutdown switch TA, the first circuit constitutes loop and disconnects, and the coil losing electricity of time relay sj 2, then when
Between the normal opened contact of relay SJ2 disconnect, and the two ends of the normal opened contact of time relay sj 2 are parallel with time-delay relay SJ1
Normally opened instantaneous make delay break contact, lead to second circuit can not disconnect immediately, when second circuit is in path shape
During state, tertiary circuit and the 4th circuit are also at channel status, the coil of such main contactor KM1 still electric, controlled part
Keep working condition, when the normally opened instantaneous make delay break contact of time-delay relay SJ1 in second circuit is opened, main contact
The coil losing electricity of device KM1, now controlled part quit work, thus realize prolonging of controlled part stopping.
Embodiment 2
Open in the wink that a kind of sealing-tape machine is included in embodiment 1 and prolong power failure road, including interlock control cabinet, PLC, velocity pick-up
Device SD, speed sensorless control switch S1, in the present embodiment, controlled part is tramp iron separator device.Tramp iron separator device is arranged on
Above sealing-tape machine zone face, PLC, the power end of velocity sensor SD, tramp iron separator device are connected with interlock control cabinet respectively, speed
The signal end of degree sensor SD is connected with the input of PLC, and velocity sensor SD is arranged on the belt both sides of sealing-tape machine.
When velocity sensor SD detects the belt of sealing-tape machine in motion, rate signal is transferred to PLC, PLC controls
Speed sensorless control switch S1 is in closure state.
Speed sensorless control switchs the normally opened instantaneous make delay that S1 is connected in parallel on the time-delay relay SJ1 in the first circuit
The two ends of break contact.
When pressing shutdown switch TA, the first circuit constitutes loop and disconnects, and the coil losing electricity of time relay sj 2, then when
Between the normal opened contact of relay SJ2 disconnect, and the two ends of the normal opened contact of time relay sj 2 are parallel with time-delay relay SJ1
Normally opened instantaneous make delay break contact, and velocity sensor switch S1 closure, dual guarantee second circuit can not be immediately
Disconnect, when second circuit is in channel status, tertiary circuit and the 4th circuit are also at channel status, so main contact
The coil of device KM1 still electric, controlled part keeps working condition, when in second circuit time-delay relay SJ1 normally opened instantaneous
When make delay break contact is opened, the coil losing electricity of main contactor KM1, now tramp iron separator device quit work, thus realizing
Prolonging of tramp iron separator device stops.
These are only the preferred embodiment of the invention, not in order to limit the invention, all in the present invention
Any modification, equivalent and improvement made within the spirit created and principle etc., should be included in the guarantor of the invention
Within the scope of shield.
Claims (9)
1. open in a kind of wink and prolong power failure road it is characterised in that including the first power supply, second source, activate switch QA, shutdown switch
TA, time-delay relay SJ1, time relay sj 2, relay J, main contactor KM, controlled part；Described shutdown switch TA is normal
Make and break is closed；The coil of described main contactor KM obtain electric after, controlled part is started working；The coil losing electricity of described main contactor KM
Afterwards, controlled part quits work；
When described time-delay relay SJ1 obtains electric, the normally opened instantaneous make delay break contact of time-delay relay SJ1 instantaneously closes,
During dead electricity, the normally opened instantaneous make delay break contact time delay of time-delay relay SJ1 disconnects；This circuit include the first circuit,
Two circuit, tertiary circuit, the 4th circuit；
Described first circuit is described activate switch QA, shutdown switch TA, the coil of time relay sj 2 are connected in series in first
On power supply；
Described second circuit is the normal opened contact of described time relay sj 2 and the coil of relay J is connected on the first power supply,
The normally opened instantaneous make delay disconnection that the two ends of the normal opened contact of described time relay sj 2 are parallel with time-delay relay SJ1 is touched
Point；
Described tertiary circuit is the normal opened contact of described relay J and the coil of described main contactor KM is connected in series in the second electricity
On source；
Described 4th circuit is normal opened contact, the normal opened contact of time relay sj 2 and the time delay relay of described main contactor KM
The coil of device SJ1 is connected on second source.
2. open in a kind of wink according to claim 1 and prolong power failure road it is characterised in that relay J described in described activate switch
Normal opened contact QA and shutdown switch TA be button, unclamp momentary start switch QA and shutdown switch TA and automatically reset, described the
On one circuit, the two ends of activate switch QA are parallel with the normal opened contact of time relay sj 2.
3. open in a kind of wink according to claim 1 prolong power failure road it is characterised in that also include the first normal open switch SB1 and
Second normally closed switch SB2, described first normal open switch SB1 is connected in parallel on the two ends of the normal opened contact of tertiary circuit repeat circuit J, institute
State the second normally closed switch SB2 to be arranged between the normal opened contact and the coil of main contactor KM of tertiary circuit repeat circuit J.
4. open in a kind of wink according to claim 1 and prolong power failure road it is characterised in that also including on described tertiary circuit insuring
Silk, described safeties are arranged on second source delivery outlet.
5. open in a kind of wink according to claim 1 and prolong power failure road it is characterised in that described first power supply is direct current 24V, institute
Stating second source is direct current 36V.
6. open in a kind of wink according to claim 5 and prolong power failure road it is characterised in that described first power supply is by 127V direct current
Become through transformer and obtain, described second source is obtained through transformer change by 660V alternating current.
7. a kind of wink including as described in claim 1-6 any one opens the sealing-tape machine prolonging power failure road.
8. a kind of sealing-tape machine according to claim 7 is it is characterised in that include interlock control cabinet, PLC, speed biography
Sensor SD, described controlled part is tramp iron separator device, and tramp iron separator device is arranged on above sealing-tape machine zone face, and described PLC, speed pass
The power end of sensor SD, tramp iron separator device are connected with interlock control cabinet respectively, the signal end of described velocity sensor SD with
The input of PLC connects, and described velocity sensor SD is arranged on the belt both sides of sealing-tape machine.
9. a kind of sealing-tape machine according to claim 8 is it is characterised in that also include speed sensorless control switch S1, institute
State speed sensorless control and switch S1 and be connected in parallel on the normally opened instantaneous make delay of the time-delay relay SJ1 in the first circuit and disconnect and touching
The two ends of point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611048000.4A CN106444615B (en) | 2016-11-23 | 2016-11-23 | Instant start and delay power failure circuit and tape machine comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611048000.4A CN106444615B (en) | 2016-11-23 | 2016-11-23 | Instant start and delay power failure circuit and tape machine comprising same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106444615A true CN106444615A (en) | 2017-02-22 |
| CN106444615B CN106444615B (en) | 2023-04-28 |
Family
ID=58218373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611048000.4A Active CN106444615B (en) | 2016-11-23 | 2016-11-23 | Instant start and delay power failure circuit and tape machine comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106444615B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109274312A (en) * | 2018-10-18 | 2019-01-25 | 鞍钢集团工程技术有限公司 | A kind of sealing-tape machine control circuit with starting indication bell interlocking by machine |
| CN113238521A (en) * | 2021-03-15 | 2021-08-10 | 鞍钢股份有限公司 | Omnibearing analysis solution method for contactor jumping problem |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003303536A (en) * | 2002-04-10 | 2003-10-24 | Fujitsu Component Ltd | Relay driving device and relay device |
| CN1812217A (en) * | 2005-01-27 | 2006-08-02 | 滨州职业学院 | Motor controlling protector |
| CN203014354U (en) * | 2013-01-05 | 2013-06-19 | 河北钢铁股份有限公司邯郸分公司 | Circuit for controlling auxiliary device of large units |
| CN104639006A (en) * | 2014-11-25 | 2015-05-20 | 常州常隆信息科技有限公司 | Control circuit for controlling inching, continuous operation and stopping of motor via single button |
| CN104865905A (en) * | 2014-02-21 | 2015-08-26 | 上海西门子医疗器械有限公司 | Communication control device, communication control method and medical device |
| CN105137865A (en) * | 2015-08-08 | 2015-12-09 | 湖南南电电气有限公司 | Safe energy-saving controller |
| CN205471355U (en) * | 2016-04-01 | 2016-08-17 | 安徽马钢工程技术集团有限公司 | Heavy rubber belt conveyor brake device's control circuit |
| CN206353257U (en) * | 2016-11-23 | 2017-07-25 | 淮南矿业(集团)有限责任公司 | Open in a kind of wink and prolong power failure road and the sealing-tape machine including the circuit |
-
2016
- 2016-11-23 CN CN201611048000.4A patent/CN106444615B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003303536A (en) * | 2002-04-10 | 2003-10-24 | Fujitsu Component Ltd | Relay driving device and relay device |
| CN1812217A (en) * | 2005-01-27 | 2006-08-02 | 滨州职业学院 | Motor controlling protector |
| CN203014354U (en) * | 2013-01-05 | 2013-06-19 | 河北钢铁股份有限公司邯郸分公司 | Circuit for controlling auxiliary device of large units |
| CN104865905A (en) * | 2014-02-21 | 2015-08-26 | 上海西门子医疗器械有限公司 | Communication control device, communication control method and medical device |
| CN104639006A (en) * | 2014-11-25 | 2015-05-20 | 常州常隆信息科技有限公司 | Control circuit for controlling inching, continuous operation and stopping of motor via single button |
| CN105137865A (en) * | 2015-08-08 | 2015-12-09 | 湖南南电电气有限公司 | Safe energy-saving controller |
| CN205471355U (en) * | 2016-04-01 | 2016-08-17 | 安徽马钢工程技术集团有限公司 | Heavy rubber belt conveyor brake device's control circuit |
| CN206353257U (en) * | 2016-11-23 | 2017-07-25 | 淮南矿业(集团)有限责任公司 | Open in a kind of wink and prolong power failure road and the sealing-tape machine including the circuit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109274312A (en) * | 2018-10-18 | 2019-01-25 | 鞍钢集团工程技术有限公司 | A kind of sealing-tape machine control circuit with starting indication bell interlocking by machine |
| CN109274312B (en) * | 2018-10-18 | 2023-12-01 | 鞍钢集团工程技术有限公司 | Belt conveyor control circuit with machine side starting indicating bell interlocking |
| CN113238521A (en) * | 2021-03-15 | 2021-08-10 | 鞍钢股份有限公司 | Omnibearing analysis solution method for contactor jumping problem |
| CN113238521B (en) * | 2021-03-15 | 2022-09-16 | 鞍钢股份有限公司 | Omnibearing analysis solution method for contactor jumping problem |
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| Publication number | Publication date |
|---|---|
| CN106444615B (en) | 2023-04-28 |
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