CN210428118U - Safe power-off system of tobacco shred making equipment - Google Patents
Safe power-off system of tobacco shred making equipment Download PDFInfo
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- CN210428118U CN210428118U CN201921354409.8U CN201921354409U CN210428118U CN 210428118 U CN210428118 U CN 210428118U CN 201921354409 U CN201921354409 U CN 201921354409U CN 210428118 U CN210428118 U CN 210428118U
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Abstract
The utility model provides a safe outage system of tobacco throwing equipment, include: the control power supply, the contactor, the control power supply switch and the power supply switch. The contactor with control switch is parallelly connected the setting, control switch's output with power switch's control end links to each other, control switch's input links to each other with control power, power switch's input with power links to each other, power switch's output links to each other with the power end of tobacco throwing equipment. The utility model provides a current tobacco equipment cooling demand time is long after the production finishes, easily appears operating personnel direct outage and causes equipment can not be according to the refrigerated problem of settlement time, can improve the intelligence and the security of equipment power supply.
Description
Technical Field
The utility model relates to a technical field of tobacco equipment protection especially relates to a safe outage system of tobacco throwing equipment.
Background
In the tobacco processing technology, a plurality of working procedures utilize heat energy to process tobacco, so that most key equipment of the tobacco processing line is equipment with a heating function, and in order to ensure good performance, the equipment needs to be gradually cooled to a position below a safe shutdown condition after being used, and power can be cut off. Because the equipment is cooled for a long time (30-60 minutes) after production is finished, operators often save the step of directly powering off the work, so that heat is gathered in the equipment and cannot be rapidly dissipated, and adverse effects are generated on the equipment in a long time, such as the phenomena of crack and water leakage of key parts, collapse of fire walls, burning of furnace ends, aging and damage of electrical elements and the like, so that the maintenance investment is large, and the production is seriously influenced. Therefore, how to supply power to the equipment intelligently when the equipment is pressed down for power-off operation can be realized, so that equipment damage or potential safety hazard caused by abnormal power-off shutdown in occasions with special requirements can be avoided.
SUMMERY OF THE UTILITY MODEL
The utility model provides a safe outage system of tobacco throwing equipment solves current tobacco equipment and equipment cooling demand time is long after the production, easily appears operating personnel direct outage and causes equipment can not be according to the refrigerated problem of settlement time, can improve the intelligent and the security of equipment power supply, improve equipment's life.
In order to achieve the above purpose, the utility model provides the following technical scheme:
a system for safely powering down a tobacco-making machine, comprising: the control power supply, the contactor, the control power supply switch and the power supply switch;
the contactor is connected with the control power switch in parallel, the output end of the control power switch is connected with the control end of the power switch, the input end of the control power switch is connected with the control power, the input end of the power switch is connected with the power, and the output end of the power switch is connected with the power end of the tobacco shred making equipment;
when the control power switch is closed, the control power supply supplies power to the control end of the power supply switch through the control power switch so as to close the power supply switch;
when the control power switch is switched off and the contactor is closed, the control power supply supplies power to the control end of the power switch through the contactor so as to close the power switch;
when the power supply switch is closed, the power supply supplies power to the tobacco shred manufacturing equipment through the power supply switch;
when the control power switch is disconnected and the contactor is disconnected, the power switch disconnects the power supply from being electrically connected with the tobacco shred manufacturing equipment.
Preferably, the method further comprises the following steps: a power-off controller and an intermediate relay;
the output end of the intermediate relay is connected with the control end of the contactor, the input end of the intermediate relay is connected with the control power supply, and the control end of the intermediate relay is connected with the output end of the power-off controller;
when the output end of the power-off controller is at a high level, the intermediate relay is closed to enable the control power supply to supply power to the control end of the contactor, and the contactor is closed.
Preferably, the method further comprises the following steps: an emergency stop button;
the emergency stop button is a normally closed switch and is connected in series between the power switch and the control switch, and when the emergency stop button is pressed down, the emergency stop button disconnects the electric connection between the control power supply and the control end of the power switch.
Preferably, the emergency stop buttons corresponding to the plurality of devices are connected in series, and when any one of the emergency stop buttons is pressed, the control power supply stops supplying power to the power supply switch, so that the power supply switch is disconnected.
Preferably, the method further comprises the following steps: an equipment power-on button and an equipment power-off button;
the device power-on button is a normally open switch, the device power-off button is a normally closed switch, the device power-on button and the device power-off button are connected in series and then connected in parallel with the emergency stop button switch, and when the device power-on button or the device power-off button is pressed, the control power switch is electrically disconnected with the power switch.
Preferably, the method further comprises the following steps: a first temperature sensor;
the output end of the first temperature sensor is connected with the first input end of the power-off controller and used for detecting the temperature of the combustion furnace;
and when the temperature of the combustion furnace is smaller than a first power-off threshold value, the power-off controller judges that the combustion furnace is allowed to be powered off.
Preferably, the method further comprises the following steps: a second temperature sensor;
the output end of the second temperature sensor is connected with the second input end of the power-off controller and used for detecting the cooling temperature of the drying furnace;
and when the cooling temperature of the drying furnace is less than a second power-off threshold value, the power-off controller judges that the drying furnace is allowed to be powered off.
Preferably, the power-off controller is further configured to obtain a state signal of the tobacco shred manufacturing device, where the state signal is an automatic operation state, and when the power-off controller determines that the tobacco shred manufacturing device needs the power supply to continuously supply power, the output end of the power-off controller outputs a high level.
Preferably, when the status signal is in a non-automatic operation state, the temperature of the combustion furnace is less than the first power-off threshold, the cooling temperature of the drying furnace is less than the second power-off threshold, and the power-off controller determines that the tobacco shred manufacturing equipment meets the power-off condition, the output end of the power-off controller outputs a low level to disconnect the contactor.
Preferably, the method further comprises the following steps: and the circuit breaker is connected between the control power switch and the power switch in series.
The utility model provides a safe outage system of tobacco throwing equipment, through a contactor that connects in parallel on control switch, when making contactor and control switch all break off, the power switch of tobacco throwing equipment just breaks off, it is long to solve current tobacco equipment cooling demand time after production, the direct outage of operating personnel easily appears and causes equipment can not be according to the refrigerated problem of settlement time, can improve the intelligence and the security of equipment power supply, improve equipment's life.
Drawings
In order to more clearly illustrate the specific embodiments of the present invention, the drawings used in the embodiments will be briefly described below.
FIG. 1 is a schematic view of a safety power-off system of a tobacco-making apparatus according to the present invention;
fig. 2 is a power failure determination flowchart of the power failure controller according to an embodiment of the present invention.
Reference numerals
KA1 intermediate relay
KM1 contactor
Q1 control power switch
Q2 power switch
Q3 breaker
S1 device power-on button
S2 power-off button of equipment
K1 scram button
Detailed Description
In order to make those skilled in the art better understand the solution of the embodiments of the present invention, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings and the implementation manner.
Aiming at the problems that in the current tobacco shred production process, operators often save waiting equipment for cooling and directly power off for work, so that heat is gathered in the equipment and cannot be rapidly dissipated, and the equipment is adversely affected in the long term. The utility model provides a safe outage system of tobacco throwing equipment, through a contactor that connects in parallel on control switch, when making contactor and control switch all break off, the power switch of tobacco throwing equipment just breaks off, it is long to solve current tobacco equipment cooling demand time after production, the direct outage of operating personnel easily appears and causes equipment can not be according to the refrigerated problem of settlement time, can improve the intelligence and the security of equipment power supply, improve equipment's life.
As shown in fig. 1, a safety power-off system of a tobacco-making apparatus includes: the control power supply, the contactor KM1, the control power switch Q1 and the power switch Q2. The contactor KM1 is parallelly connected with control power switch Q1, the output end of control power switch Q1 with power switch Q2's control end links to each other, control power switch Q1's input links to each other with control power, power switch Q2's input with power links to each other, power switch Q3's output links to each other with the power end of tobacco throwing equipment. When the control power switch is closed, the control power supply supplies power to the control end of the power supply switch through the control power switch so as to close the power supply switch. When the control power switch is switched off and the contactor is closed, the control power supply supplies power to the control end of the power switch through the contactor so as to close the power switch. When the power supply switch is closed, the power supply supplies power to the tobacco shred manufacturing equipment through the power supply switch. When the control power switch is disconnected and the contactor is disconnected, the power switch disconnects the power supply from being electrically connected with the tobacco shred manufacturing equipment.
Specifically, because the control power switch and the contactor are connected in parallel, two paths of power supply circuits are arranged between the control power supply and the power switch, when the control power switch is disconnected, the control power supply can supply power to the control end of the power switch through the contactor, so that the power switch is in a closed state, and further, the power supply can continuously supply power to equipment through the power supply control switch. Only when the contactor and the control power switch are in a disconnected state, the control power supply supplies power to the control end of the power switch, the power switch is in the disconnected state, the power supply is disconnected from the equipment, and the equipment is stopped. The device has the advantages that the device protection effect is achieved while the device is powered off, the device damage or potential safety hazard caused by abnormal power-off shutdown in occasions with special requirements is avoided, the intelligence and the safety of device power supply are improved, and the service life of the device is prolonged.
As shown in fig. 1, the system further includes: a power-off controller and an intermediate relay KA 1; the output end of the intermediate relay KA1 is connected with the control end of the contactor KM1, the input end of the intermediate relay KA1 is connected with the control power supply, and the control end of the intermediate relay KA1 is connected with the output end of the power-off controller. When the output end of the power-off controller is at a high level, the intermediate relay KA1 is closed, so that the control power supply supplies power to the control end of the contactor, and the contactor KM1 is closed.
In practical application, the power-off controller can be a PLC (programmable logic controller) or a microprocessor, and supplies power to equipment or controls power-off through the power-off controller during power-off to form a safe power-off loop, so that equipment damage or potential safety hazards caused by abnormal power-off shutdown in some occasions with special requirements are mainly avoided. The power-off controller can be programmed and output according to specific requirements of equipment, and the output level of the power-off controller is controlled by setting different safe shutdown conditions, wherein the safe shutdown conditions are programmed and output according to different equipment; when the safety power-off loop is artificially powered off, if the safety shutdown condition is not met, the circuit can not be powered off until the safety shutdown condition is met.
The system further comprises: an emergency stop button K1; the emergency stop button is a normally closed switch and is connected in series between the power switch and the control switch, and when the emergency stop button is pressed down, the emergency stop button disconnects the electric connection between the control power supply and the control end of the power switch.
Furthermore, the emergency stop buttons corresponding to the multiple devices are connected in series, and when any emergency stop button is pressed, the control power supply stops supplying power to the power supply switch, so that the power supply switch is disconnected.
The system further comprises: the device power-on button S1 and the device power-off button S2, the device power-on button S1 is a normally open switch, the device power-off button S2 is a normally closed switch, the device power-on button S1 and the device power-off button S2 are connected in series and then connected in parallel with the emergency stop button K1, and when the device power-on button S1 or the device power-off button S2 is pressed, the control power switch Q1 is electrically disconnected with the power switch Q2.
The system further comprises: and the output end of the first temperature sensor (not shown in the figure) is connected with the first input end of the power-off controller and is used for detecting the temperature of the combustion furnace. And when the temperature of the combustion furnace is smaller than a first power-off threshold value, the power-off controller judges that the combustion furnace is allowed to be powered off.
The system further comprises: a second temperature sensor (not shown); and the output end of the second temperature sensor is connected with the second input end of the power-off controller and used for detecting the cooling temperature of the drying furnace. And when the cooling temperature of the drying furnace is less than a second power-off threshold value, the power-off controller judges that the drying furnace is allowed to be powered off.
Further, the power-off controller is also used for obtaining a state signal of the tobacco shred manufacturing equipment, the state signal is in an automatic operation state, and when the power-off controller judges that the tobacco shred manufacturing equipment needs the power supply to continuously supply power, the output end of the power-off controller outputs a high level.
Furthermore, when the state signal is in a non-automatic operation state, the temperature of the combustion furnace is smaller than the first power-off threshold value, the cooling temperature of the drying furnace is smaller than the second power-off threshold value, and the power-off controller judges that the tobacco shred manufacturing equipment meets the power-off condition, the output end of the power-off controller outputs a low level to disconnect the contactor.
In practical application, as shown in fig. 2, the power-off controller obtains the operation state of the tobacco equipment, and when the operation state is automatic operation, it indicates that the equipment is in the production stage and cannot be stopped, and at this time, the output end of the power-off controller outputs a low level, so that the coil end of the intermediate relay is not electrified, and the contactor is in a connection and conduction state. When the operation state is non-automatic operation, if the control power switch is disconnected by an operator, the power-off controller judges whether the temperature of the combustion furnace reaches the standard, the cooling temperature of the drying furnace reaches the standard and the stop conditions of other key equipment are met, if the conditions are met, the output end of the power-off controller outputs high level, so that the contactor is disconnected to control the power supply to be electrically connected with the power switch, and the tobacco shred making equipment is stopped to operate.
As shown in fig. 1, the system further includes: a circuit breaker Q3, the circuit breaker Q3 is connected in series between the control power switch Q1 and the power switch Q2.
It can be seen that, the utility model provides a safe outage system of tobacco throwing equipment, through a contactor of connecting in parallel on control switch, when making contactor and control switch all break off, the power switch of tobacco throwing equipment just breaks off, it is long to solve current tobacco equipment cooling demand time after production, the direct outage of operating personnel easily appears and causes equipment can not be according to the refrigerated problem of settlement time, can improve the intelligence and the security of equipment power supply, improve equipment's life.
The structure, features and effects of the present invention have been described in detail above according to the embodiment shown in the drawings, and the above description is only the preferred embodiment of the present invention, but the present invention is not limited to the implementation scope shown in the drawings, and all changes made according to the idea of the present invention or equivalent embodiments modified to the same changes should be considered within the protection scope of the present invention when not exceeding the spirit covered by the description and drawings.
Claims (10)
1. A safe power-off system of a tobacco throwing device is characterized by comprising: the control power supply, the contactor, the control power supply switch and the power supply switch;
the contactor is connected with the control power switch in parallel, the output end of the control power switch is connected with the control end of the power switch, the input end of the control power switch is connected with the control power, the input end of the power switch is connected with the power, and the output end of the power switch is connected with the power end of the tobacco shred making equipment;
when the control power switch is closed, the control power supply supplies power to the control end of the power supply switch through the control power switch so as to close the power supply switch;
when the control power switch is switched off and the contactor is closed, the control power supply supplies power to the control end of the power switch through the contactor so as to close the power switch;
when the power supply switch is closed, the power supply supplies power to the tobacco shred manufacturing equipment through the power supply switch;
when the control power switch is disconnected and the contactor is disconnected, the power switch disconnects the power supply from being electrically connected with the tobacco shred manufacturing equipment.
2. The system of claim 1, further comprising: a power-off controller and an intermediate relay;
the output end of the intermediate relay is connected with the control end of the contactor, the input end of the intermediate relay is connected with the control power supply, and the control end of the intermediate relay is connected with the output end of the power-off controller;
when the output end of the power-off controller is at a high level, the intermediate relay is closed to enable the control power supply to supply power to the control end of the contactor, and the contactor is closed.
3. The system of claim 2, further comprising: an emergency stop button;
the emergency stop button is a normally closed switch and is connected in series between the power switch and the control switch, and when the emergency stop button is pressed down, the emergency stop button disconnects the electric connection between the control power supply and the control end of the power switch.
4. The system of claim 3, wherein the emergency stop buttons associated with the plurality of devices are connected in series, and when any of the emergency stop buttons is pressed, the control power supply stops providing power to the power switch, thereby disconnecting the power switch.
5. The system of claim 4, further comprising: an equipment power-on button and an equipment power-off button;
the device power-on button is a normally open switch, the device power-off button is a normally closed switch, the device power-on button and the device power-off button are connected in series and then connected in parallel with the emergency stop button switch, and when the device power-on button or the device power-off button is pressed, the control power switch is electrically disconnected with the power switch.
6. The system of claim 5, further comprising: a first temperature sensor;
the output end of the first temperature sensor is connected with the first input end of the power-off controller and used for detecting the temperature of the combustion furnace;
and when the temperature of the combustion furnace is smaller than a first power-off threshold value, the power-off controller judges that the combustion furnace is allowed to be powered off.
7. The system of claim 6, further comprising: a second temperature sensor;
the output end of the second temperature sensor is connected with the second input end of the power-off controller and used for detecting the cooling temperature of the drying furnace;
and when the cooling temperature of the drying furnace is less than a second power-off threshold value, the power-off controller judges that the drying furnace is allowed to be powered off.
8. The system of claim 7, wherein the power-off controller is further configured to obtain a status signal of the tobacco processing device, and when the status signal is in an automatic operation status, the power-off controller determines that the tobacco processing device requires the power source to continuously supply power, and the output end of the power-off controller outputs a high level.
9. The system of claim 8, wherein when the status signal is a non-automatic status, the furnace temperature is less than the first power-off threshold, the drying furnace cooling temperature is less than the second power-off threshold, and the power-off controller determines that the tobacco cutting device meets the power-off condition, the output of the power-off controller outputs a low level to turn off the contactor.
10. A system for safely powering down a tobacco-making machine according to any of claims 1 to 9, further comprising: and the circuit breaker is connected between the control power switch and the power switch in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921354409.8U CN210428118U (en) | 2019-08-20 | 2019-08-20 | Safe power-off system of tobacco shred making equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921354409.8U CN210428118U (en) | 2019-08-20 | 2019-08-20 | Safe power-off system of tobacco shred making equipment |
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| CN210428118U true CN210428118U (en) | 2020-04-28 |
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| CN201921354409.8U Active CN210428118U (en) | 2019-08-20 | 2019-08-20 | Safe power-off system of tobacco shred making equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110531642A (en) * | 2019-08-20 | 2019-12-03 | 河南中烟工业有限责任公司 | A kind of safe power-off system of tobacco cutting equipment |
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2019
- 2019-08-20 CN CN201921354409.8U patent/CN210428118U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110531642A (en) * | 2019-08-20 | 2019-12-03 | 河南中烟工业有限责任公司 | A kind of safe power-off system of tobacco cutting equipment |
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