CN209666589U - A kind of printing machine with circuit protection device - Google Patents
A kind of printing machine with circuit protection device Download PDFInfo
- Publication number
- CN209666589U CN209666589U CN201920237762.1U CN201920237762U CN209666589U CN 209666589 U CN209666589 U CN 209666589U CN 201920237762 U CN201920237762 U CN 201920237762U CN 209666589 U CN209666589 U CN 209666589U
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Abstract
A kind of printing machine with circuit protection device disclosed by the utility model, it is related to print field, solve the problems, such as that people often ignore the cleaning of main electric cabinet and fail periodic cleaning, drip irrigation device is: including being set at main electric cabinet and being preset with timing time and export the timing unit of countdown signal, the light Alarm Unit of light alarm is realized in response to countdown signal, it is set at main electric cabinet for detecting the temperature detecting unit of temperature at main cabinet, it receives temperature detection signal and exports the trigger unit of trigger signal, trigger unit is coupled to receive trigger signal and export the control unit of control signal, the power supply unit being used to provide power, radiator fan is coupled to control unit to receive control signal and realize heat dissipation in response to control signal to start；A kind of printing machine with circuit protection device of the utility model, it is ensured that the normal operation of main line in main electric cabinet plays a protective role to main line in main electric cabinet.
Description
Technical field
The utility model relates to print field, in particular to a kind of printing machine with circuit protection device.
Background technique
Full-automatic printer precision is high, performance is stablized.But simultaneously full-automatic printer it be a fragile fellow again, it is right
Print production environmental requirement standard is very high, and electric power is steady, wet temp wants moderate, ventilation will be got well, operates requirement specification, does not infuse slightly
Meaning, will go on strike, need that producer is asked to send people over here to repair, therefore this requires operators very strong sense of responsibility, strictly press
It is done according to operating instruction.
Main electric cabinet in printing machine is the power center (PC) of full machine, is needed at the switch that personnel monthly clean on main line
Dust, is inhaled and high pressure air-blowing with dust catcher, while monthly cleaning the dust of silicon controlled rectifying unit and heat emission fan.But in workshop
Printing machine once come into operation, people often ignore main electric cabinet cleaning this or fail periodic cleaning, keep winner electric
Cabinet easy break-down in use, there is improved space.
Utility model content
The purpose of the utility model is to provide a kind of printing machines with circuit protection device, it is ensured that main line in main electric cabinet
Normal operation, play a protective role to main line in main electric cabinet.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of printing machine with circuit protection device, including printing machine body, the operation set on printing machine body side
Body, the control panel above operating body, main electric cabinet and radiator fan inside operating body；The side of the operating body
It is articulated in cabinet door, further includes being set at main electric cabinet and being preset with timing time and export the timing unit of countdown signal, coupling
The timing unit is connected to receive countdown signal and realize that the light alarm of light alarm is single in response to countdown signal
Member；It further include being set to be used to detect temperature and the temperature detection list for output temperature detection signal at main cabinet at main electric cabinet
Member is coupled to temperature detecting unit to receive temperature detection signal and export that the trigger unit of trigger signal, to be coupled to triggering single
Power supply unit of the member to receive trigger signal and export the control unit of control signal, be used to provide power, the radiator fan
Control unit is coupled to receive control signal and realize heat dissipation in response to control signal to start；
Timing unit timing terminates the work of light Alarm Unit, otherwise light Alarm Unit does not work；When temperature detection is believed
Number lower than default in temperature detecting unit reference signal when radiator fan do not work, otherwise radiator fan work.
By using above-mentioned technical proposal, timing unit gives timing, needs to clean once reaching main electric cabinet in printing machine
Time, light Alarm Unit give alarm with remind personnel clean main line on dust, to ensure main line in main electric cabinet
Normal operation；Temperature detecting unit gives real-time detection to the temperature at main electric cabinet, once temperature is greater than preset temperature, then
Starting radiator fan radiates at the first time, avoids the accumulation of heat, plays a protective role to main line in main electric cabinet.
The utility model is further arranged to: the monostable flipflop that the trigger unit is made of 555 timers.
By using above-mentioned technical proposal, 555 timers are at low cost, reliable performance, and wide using voltage range, work
Speed is fast, and driving capability is strong.
The utility model is further arranged to: described control unit includes being coupled to trigger unit to receive trigger signal simultaneously
The switching circuit of output switching signal is coupled to switching circuit to receive switching signal and export the control circuit of control signal.
It will be connected, be connected at once when switching circuit receives the signal of high level by using above-mentioned technical proposal
Speed is fast, while cooperating the setting of control circuit, will directly control radiator fan, high-efficient, practical.
The utility model is further arranged to: described control unit further includes being coupled to control circuit and for protecting control
First protection circuit of circuit
By using above-mentioned technical proposal, control circuit namely electromagnetic relay can generate the anti-of very big voltage when power is off
To electromotive force, the first protection circuit is used as afterflow protection, absorbs the self induction voltage of electromagnetic relay coil, protect electromagnetism after
Electric appliance, it is practical.
The utility model is further arranged to: further including being coupled to trigger unit to receive trigger signal and in response to triggering
Signal is to realize the lamplight pointing unit of instruction；
When temperature detection signal is lower than the reference signal for defaulting in temperature detecting unit, lamplight pointing unit does not work；
Conversely, lamplight pointing cell operation.
By using above-mentioned technical proposal, temperature detection signal is higher than the reference signal for defaulting in temperature detecting unit, lamp
The work of light indicating unit, the temperature of current cabinet body is learnt convenient for staff in real time.
The utility model is further arranged to: said supply unit includes the transformer rectifier circuit for being coupled to alternating current, coupling
In transformer rectifier circuit rectification circuit, be coupled to the filter circuit of rectification circuit.
By using above-mentioned technical proposal, the alternating current of exchange is transformed to meet the electricity of rectification needs by transformer rectifier circuit
Pressure；Alternating voltage is transformed to unidirectional pulsating volage by rectification circuit；Filter circuit reduces the degree of pulsatility of rectified voltage, with more preferable
Suitable control unit or load needs.
The utility model is further arranged to: further including the voltage regulation unit for being coupled to filter circuit and being used for pressure stabilizing.
By using above-mentioned technical proposal, rectified and filtered voltage can be with the change of fluctuation and the load of AC power source
Change and change, the unstable error for generating measurement sometimes and calculating of voltage causes the job insecurity of control unit, even
It can not work at all, the setting of voltage regulation unit provides the power supply of stable DC source for subsequent control circuit or load, improves
The stability of entire circuit.
The utility model is further arranged to: the voltage regulation unit includes the voltage regulator circuit for being coupled to filter circuit, coupling
Second in voltage regulator circuit protects circuit.
By using above-mentioned technical proposal, voltage regulator circuit makes load or control unit obtain a more stable electricity
Pressure；Second protects the setting of circuit, together metering function, to protect the voltage-stabiliser tube in voltage regulator circuit, secondly working as input voltage
Or when load current variation, by the variation of voltage drop on the second protection circuit namely resistance, to adjust the work of voltage-stabiliser tube
Electric current, to play the role of pressure stabilizing.
In conclusion the utility model has the following beneficial effects:
1, timing unit gives timing, once reaching main electric cabinet in printing machine needs clean time, light Alarm Unit
Alarm is given to remind personnel to clean the dust on main line, to ensure the normal operation of main line in main electric cabinet；
2, temperature detecting unit gives real-time detection to the temperature at main electric cabinet, once temperature is greater than preset temperature, then
Starting radiator fan radiates at the first time, avoids the accumulation of heat, plays a protective role to main line in main electric cabinet.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the printing machine that the utility model has circuit protection device；
Fig. 2 is the enlarged diagram in the portion A in Fig. 1；
Fig. 3 is the circuit that the utility model has timing unit, light Alarm Unit in the printing machine of circuit protection device
Schematic diagram；
Fig. 4 is the circuit diagram that the utility model has temperature detecting unit in the printing machine of circuit protection device.
In figure, 1, printing machine body；2, operating body；3, control panel；4, cabinet door；5, timing unit；6, light alarm is single
Member；7, radiator fan；8, temperature detecting unit；10, trigger unit；11, control unit；111, switching circuit；112, control electricity
Road；113, the first protection circuit；12, lamplight pointing unit；13, power supply unit；131, transformer rectifier circuit；132, rectified current
Road；133, filter circuit；14, voltage regulation unit；141, voltage regulator circuit；142, the second protection circuit.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing 1-4.
A kind of printing machine with circuit protection device, the print of cabinet door 4 is articulated with including one side disclosed in the present embodiment
Brush machine body 1, set on the operating body 2 of 1 side of printing machine body, the control panel 3 above operating body 2, be set to operating body 2
Internal main electric cabinet and the radiator fan 7 at main electric cabinet.
It further include being set at main electric cabinet and being preset with timing time and export the timing unit 5 of countdown signal, coupling
In timing unit 5 to receive countdown signal and realize the light Alarm Unit 6 of light alarm in response to countdown signal.
Timing unit 5 includes IC555 timer U2, slide rheostat RP1, capacitor C4, capacitor C5, diode D4, resistance
R5, triode Q2, electromagnetic relay KA2.
1 foot of timer U2 and 5 feet of timer U2 are connect with ground GND, and 5 feet of timer U2 are connect with ground GND
Between be in series with capacitor C5；2 feet of timer U2 and 6 feet of timer U2 are connected to node b, 2 feet and ground GND of timer U2
Between be in series with capacitor C4；The other end of the node b main control end with one end of slide rheostat RP1, slide rheostat RP1 respectively
Connection, the anode connection of diode D4；4 feet of timer U2 and 8 feet of timer U2 are another with slide rheostat RP1 respectively
End, diode D4 cathode be connected to node a, the other end of node a is connect with power supply VCC.3 feet and resistance R5 of timer U2
One end connection, the other end of resistance R5 connect with the base stage of triode Q2, the emitter of triode Q2 with GND connect, three
The collector of pole pipe Q2 is connect with one end of electromagnetic relay KA2, and the other end of electromagnetic relay KA2 is connect with power supply VCC.
Light Alarm Unit 6 is Light-emitting diode LED 2, and the cathode of Light-emitting diode LED 2 is connect with ground GND, luminous two
The anode of pole pipe LED2 is connect with one end of electromagnetic relay KA2 normally opened contact KA2-1, electromagnetic relay KA2 normally opened contact
The other end of KA2-1 is connect with power supply VCC.
Timer U2 countdown terminates, and 3 feet of timer U2 export high level, triode Q2 conducting, electromagnetic relay KA2
Obtain electric, electromagnetic relay KA2 normally opened contact KA2-1 closure, the work of Light-emitting diode LED 2.
It further include being set to be used to detect temperature and the temperature for output temperature detection signal at main cabinet at main electric cabinet
Detection unit 8 is coupled to temperature detecting unit 8 to receive temperature detection signal and export trigger unit 10, the coupling of trigger signal
The power supply unit that trigger unit 10 is connected to receive trigger signal and export the control unit 11 of control signal, be used to provide power
13, radiator fan 7 is coupled to control unit 11 to receive control signal and realize heat dissipation in response to control signal to start.
Temperature detecting unit 8 is temperature sensor T, the model WRM-101 of temperature sensor.
Power supply unit 13 includes transformer rectifier circuit 131, rectification circuit 132, filter circuit 133.Transformer rectifier circuit 131
Turn the transformer T and model XY-328 of 12V for 220V；Rectification circuit 132 is unidirectional bridge rectifier 132, by four two
Pole pipe is connected into the form composition of electric bridge；Filter circuit 133 is capacitor C3.
The primary side of transformer T is connected to the alternating current of 220V, the Same Name of Ends of transformer T secondary side and the b of rectification circuit 132
End connection, the different name end of transformer T secondary side are connect with the end d of rectification circuit 132, one end of capacitor C3 and rectification circuit 132
The connection of the end a, the other end of capacitor C3 connect with the end c of rectification circuit 132.
Voltage regulation unit 14 includes that voltage regulator circuit 141, second protects circuit 142, and voltage regulator circuit 141 is zener diode D, the
Two protection circuits 142 are resistance R4.One end of resistance R4 is connect with the end a of rectification circuit 132, the other end of resistance R4 and pressure stabilizing
The cathode of diode D connects, and the anode of zener diode D is connect with ground GND.
Temperature detecting unit 8 includes temperature sensor T, resistance R1, the model WRM-101 of temperature sensor.Resistance R1
One end connect with the end a, the other end of resistance R1 is connect with one end of temperature sensor T.
Trigger unit 10 is the monostable flipflop that 555 timers are constituted, including chip U1, capacitor C1, capacitor C2, resistance
R2。
1 foot of chip U1 is connect with one end of the end e, one end of capacitor C2, resistance R2 respectively, the other end and core of capacitor C2
5 feet of piece U1 connect；4 feet of chip U1,8 feet of chip U1 are connect with the end a respectively；One end of capacitor C1 is connect with the end a, electricity
The other end for holding C1 is connect with the other end of 7 feet of chip U1,6 feet of chip U1, resistance R2 respectively, 2 feet and pressure of chip U1
The other end of force snesor BL connects.
When Current Temperatures are greater than preset temperature, chip U1 overturning, the signal of the 3 feet output high level of chip U1.
Lamplight pointing unit 12 is Light-emitting diode LED 1；Control unit 11 include switching circuit 111, control circuit 112,
First protection circuit 113.Switching circuit 111 includes triode Q1, and resistance R3, triode Q1 are NPN type and model
2SC2073；Control circuit 112 is relay KA1 and model DZ47；Protecting circuit is diode D1 and model RS2M.Hair
Optical diode LED1 and Light-emitting diode LED 2 are mounted at control panel 3.
The anode of Light-emitting diode LED 1 is connect with 3 feet of chip U1, the cathode of Light-emitting diode LED and the one of resistance R3
End connection；The other end of resistance R3 is connect with the base stage of triode Q1, and the emitter of triode Q1 is connect with the end e；Relay KA1
One end connect with the collector of triode Q1, the other end of relay KA1 is connect with the end a.The cathode of diode D1 respectively with
The other end of relay KA1, the connection of the end a, the anode of diode D1 are connect with one end of relay KA1.
When the signal of the 3 feet output high level of chip U1, the conducting of Light-emitting diode LED 1 carries out the instruction that shines, triode Q1
The signal of high level is connected and exports, relay KA1 obtains electric.
One end of relay normally open contact KA1-1 is connect with the end a, the other end of relay normally open contact KA1-1 and heat dissipation
One end of fan 7 connects, and the other end of radiator fan 7 is connect with the end e.
When the signal of the 3 feet output high level of chip U1, the conducting of Light-emitting diode LED 1 carries out the instruction that shines, triode Q1
Be connected and export the signal of high level, relay KA1 obtains electric, and when relay normally open contact KA1-1 is closed, radiator fan 7 works.
The course of work:
When Current Temperatures are greater than preset temperature, chip U1 overturning, the signal of the 3 feet output high level of chip U1 shines
The conducting of diode (LED) 1 carries out the instruction that shines, triode Q1 conducting, and relay KA1 obtains electric, relay normally open contact KA1-1 closure
When, radiator fan 7 works；
When 555 timer countdowns terminate, the work of Light-emitting diode LED 2 carries out light alarm.
Above embodiments are only described in detail to the technical solution to the application, but the explanation of above embodiments is only
It is the method and its core concept for being used to help understand the utility model, should not be construed as a limitation of the present invention.This skill
Within the technical scope disclosed by the utility model, any changes or substitutions that can be easily thought of by the technical staff in art field, should all cover
It is within the protection scope of the utility model.
Claims (8)
1. a kind of printing machine with circuit protection device including printing machine body (1), is set to printing machine body (1) side
Operating body (2), the control panel (3) being set to above operating body (2) are set to operating body (2) internal main electric cabinet and radiator fan
(7)；It is characterized in that, the side of the operating body (2) is articulated in cabinet door (4), it further include being set at main electric cabinet and being preset with
Timing time simultaneously exports the timing unit (5) of countdown signal, is coupled to the timing unit (5) to receive countdown signal simultaneously
The light Alarm Unit (6) of light alarm is realized in response to countdown signal；It further include being set at main electric cabinet for detecting
At main cabinet temperature and for output temperature detection signal temperature detecting unit (8), be coupled to temperature detecting unit (8) to connect
Shrinkage temperature detection signal simultaneously exports the trigger unit (10) of trigger signal, is coupled to trigger unit (10) to receive trigger signal simultaneously
The control unit (11) of output control signal, the power supply unit (13) being used to provide power, the radiator fan (7) are coupled to control
Unit (11) processed is to receive control signal and realize heat dissipation in response to control signal to start；
Timing unit (5) timing terminates light Alarm Unit (6) work, otherwise light Alarm Unit (6) does not work；When temperature is examined
Radiator fan (7) when signal is lower than the reference signal for defaulting in temperature detecting unit (8) is surveyed not work, on the contrary radiator fan (7)
Work.
2. a kind of printing machine with circuit protection device according to claim 1, it is characterized in that: the trigger unit
(10) monostable flipflop being made of 555 timers.
3. a kind of printing machine with circuit protection device according to claim 1, it is characterized in that: described control unit
It (11) include being coupled to trigger unit (10) to receive the switching circuit (111) of trigger signal and output switching signal, be coupled to
Switching circuit (111) is to receive switching signal and export the control circuit (112) of control signal.
4. a kind of printing machine with circuit protection device according to claim 3, it is characterized in that: described control unit
It (11) further include being coupled to control circuit (112) and for protecting the first of control circuit (112) to protect circuit (113).
5. a kind of printing machine with circuit protection device according to claim 1, it is characterized in that: further including being coupled to touching
Bill member (10) is to receive trigger signal and realize the lamplight pointing unit (12) of instruction in response to trigger signal；
When temperature detection signal is lower than the reference signal for defaulting in temperature detecting unit (8), lamplight pointing unit (12) not work
Make；Conversely, lamplight pointing unit (12) works.
6. a kind of printing machine with circuit protection device according to claim 1, it is characterized in that: said supply unit
(13) include the transformer rectifier circuit (131) for being coupled to alternating current, the rectification circuit (132) for being coupled to transformer rectifier circuit (131),
It is coupled to the filter circuit (133) of rectification circuit (132).
7. a kind of printing machine with circuit protection device according to claim 6, it is characterized in that: further including being coupled to filter
Wave circuit (133) and the voltage regulation unit (14) for being used for pressure stabilizing.
8. a kind of printing machine with circuit protection device according to claim 7, it is characterized in that: the voltage regulation unit
It (14) include the voltage regulator circuit (141) for being coupled to filter circuit (133), the second protection circuit for being coupled to voltage regulator circuit (141)
(142).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920237762.1U CN209666589U (en) | 2019-02-23 | 2019-02-23 | A kind of printing machine with circuit protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920237762.1U CN209666589U (en) | 2019-02-23 | 2019-02-23 | A kind of printing machine with circuit protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209666589U true CN209666589U (en) | 2019-11-22 |
Family
ID=68569707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920237762.1U Expired - Fee Related CN209666589U (en) | 2019-02-23 | 2019-02-23 | A kind of printing machine with circuit protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209666589U (en) |
-
2019
- 2019-02-23 CN CN201920237762.1U patent/CN209666589U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20191122 |