CN207241153U - A kind of intaglio printing press drying unit - Google Patents
A kind of intaglio printing press drying unit Download PDFInfo
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- CN207241153U CN207241153U CN201721175450.XU CN201721175450U CN207241153U CN 207241153 U CN207241153 U CN 207241153U CN 201721175450 U CN201721175450 U CN 201721175450U CN 207241153 U CN207241153 U CN 207241153U
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Abstract
The utility model discloses a kind of intaglio printing press drying unit, including baking oven, chill roll, fan and the alignment circuit for controlling rotation speed of the fan；The fan is arranged between the baking oven and the chill roll；The alignment circuit includes thermistor RT, single chip circuit, triode Q1, triode Q2, resistance R1, divider resistance R2 and resistance R3, the AD sampling ends of the thermistor RT connections single chip circuit, the pwm signal output terminal of single chip circuit connects the base stage of the triode Q1, the collector of triode Q1 is through resistance R1 connection power supplys VCC, the emitter ground connection of triode Q1, the collector of the base stage connecting triode Q1 of triode Q2, the emitter connection power supply VCC of triode Q2, the collector of triode Q2 connects the cathode of the fan, the divider resistance R2 is series between the emitter of triode Q2 and the cathode of the fan, the anode of the fan is grounded through resistance R3.
Description
Technical field
Printer field is the utility model is related to, particularly a kind of intaglio printing press drying unit.
Background technology
Intaglio printing press is a kind of printing equipment, is at present the principle by electric-heating-wire-heating on Bo Site intaglio printing press to product
Dried, but only can't reach preferable aridity by this drying, it is necessary to by manually carrying out two to product with air gun
Secondary drying, can be only achieved the aridity of standard, cause production cost height, efficiency is low, chromatography is unstable, product qualification rate is low.Due to
The easy contraction distortion of printed matter after heating, papery become fragile so as to influence post-press finishing processing, it is therefore desirable to are set after drying system
Put cooling system, cooling system can control the surface temperature of printed matter, ensure the gloss of printed matter, dimensional stability and it is rear plus
Work, but since the printed matter temperature for exporting out from baking oven is higher, temperature decrease makes printed matter anxious when being cooled down into chill roll
Acute shrinkage cracking.
Utility model content
To solve problems of the prior art, the purpose of this utility model, which is to provide one kind, to carry out two to printed matter
The intaglio printing press drying unit of secondary drying.
To achieve the above object, the technical solution adopted in the utility model is：A kind of intaglio printing press drying unit, including dry
Case, chill roll, fan and the alignment circuit for controlling rotation speed of the fan；The fan is arranged between the baking oven and the chill roll；
The alignment circuit includes thermistor RT, single chip circuit, triode Q1, triode Q2, resistance R1, divider resistance R2 and electricity
Hinder R3, the AD sampling ends of the thermistor RT connections single chip circuit, the pwm signal output terminal connection of single chip circuit
The base stage of the triode Q1, emitter ground connection of the collector through resistance R1 connections power supply VCC, triode Q1 of triode Q1,
The collector of the base stage connecting triode Q1 of triode Q2, the emitter connection power supply VCC of triode Q2, the current collection of triode Q2
Pole connects the cathode of the fan, the divider resistance R2 be series at triode Q2 emitter and the fan cathode it
Between, the anode of the fan is grounded through resistance R3.
The utility model exports in baking oven and fan is housed between chill roll on the basis of original electric-heating-wire-heating, and one
Aspect, which avoids, manually carries out second of dry while more preferable to the drying effect of water-based printing product, cooling effect to printed matter
Fruit is more preferable, makes that chromatography is more accurate, effectively raise product quality, remove printed matter peculiar smell, production efficiency, qualification rate, reduces life
Produce cost；On the other hand, fan is dried in real time after quickly being printed to printed matter, does not influence the normal work of printing machine,
The extra work time is not take up, and cooling procedure temperature gradually reduces, and avoids printed matter when entering chill roll cooling
Temperature decrease causes printed matter drastically shrinkage cracking.
Also speed governing can be carried out added with alignment circuit, alignment circuit on fan according to the temperature of printed matter, be come out from baking oven
Printed matter temperature it is high when, the rotating speed of fan is fast, good heat dissipation effect, from baking oven come out printed matter temperature it is low when, heat dissipation effect
The rotating speed of fan is slow when need not be so obvious, and then reduces the noise of fan, and the purpose of using electricity wisely is energy saving to subtract
Row.
The operation principle of alignment circuit is as follows：
The temperature for the printed matter that thermistor RT detections come out from baking oven, when temperature is higher, thermistor RT resistance values become
Small, single chip circuit collects temperature value, the duty cycle of the positive pulsewidth square-wave signal of the pwm signal output of single chip circuit (
Preset duty cycle computational methods in the single chip circuit) it is higher, when the temperature is low, the resistance value of thermistor RT becomes larger, monolithic
Electromechanical road collects temperature value, and the duty cycle of the positive pulsewidth square-wave signal of the pwm signal output of single chip circuit is lower.Work as monolithic
During the positive pulsewidth of machine circuit output (i.e. high level), triode Q1 and triode Q2 are in conducting state, and power supply VCC is through three at this time
Pole pipe Q2 powers for fan, and when single chip circuit exports negative pulsewidth (i.e. low level), triode Q1 and triode Q2 are in
Cut-off state, at this time power supply VCC power after divider resistance R2 for fan, due to the partial pressure of divider resistance R2, fan two at this time
The voltage at end reduces, and the rotating speed of fan also reduces.If temperature is higher always, positive pulsewidth that single chip circuit persistently exports accounts for
Empty ratio is higher, and power supply VCC is that the time that fan is powered is longer through triode Q2, through the time that divider resistance R2 is fan power supply
Shorter, fan is in time of the time far above the state of low-voltage of high-tension state at this time, so fan averagely turns
Speed is relatively fast, and heat dissipation is obvious；If temperature is low, the duty cycle for the positive pulsewidth that microcontroller persistently exports is lower, and power supply VCC is through three
Pole pipe Q2 is that the time of fan power supply is shorter, is that the time that fan is powered is longer through divider resistance R2, fan is at this time
The time of high-tension state is far below the time of the state of low-voltage, so fan mean speed is relatively slow, energy-saving and emission-reduction.
As further improvement of the utility model, the alignment circuit further includes protection circuit, the protection circuit bag
Include resistance R4, resistance R5, comparator U1, triode Q3 and relay K1；The resistance R4 be series at the fan anode and
Between the in-phase input end of the comparator U1, the resistance R5 be series at power supply VCC and comparator U1 inverting input it
Between, and the resistance value of resistance R5 is much larger than the resistance value that resistance R3 connects with resistance R4, the output terminal of the comparator U1 is series at institute
State between the base stage of triode Q3 and power supply VCC, the grounded collector of triode Q3, the input circuit series connection of the relay K1
Between the emitter of power supply VCC and triode Q3, the output loop of the relay K1 is series in the current supply circuit of fan.
As further improvement of the utility model, the protection circuit further includes warning circuit, the warning circuit string
It is coupled between the emitter of power supply VCC and triode Q3.
As further improvement of the utility model, the warning circuit is Light-emitting diode LED 1.
As further improvement of the utility model, the warning circuit is buzzer BUZ1.
Protect the operation principle of circuit and warning circuit as follows：
When fan is normal, by detecting the pressure drop of resistance R3, the noninverting input of comparator U1 is sent to by resistance R4, electricity
Source VCC by being sent to the reverse input end of comparator U1 after resistance R5 partial pressures, due to resistance R5 resistance value much larger than resistance R3 with
The resistance value of R4 series connection, so the voltage of comparator U1 noninverting inputs is higher than the voltage of reverse input end, the output of comparator U1
End output high level, triode Q3 is not turned on, due to Light-emitting diode LED 1 (or buzzer BUZ1) be series at power supply VCC and
Between the emitter of triode Q3, so Light-emitting diode LED 1 does not work (or buzzer BUZ1 does not alarm), relay K1's
Input circuit no power, the switch of relay K1 are not attracted, i.e. the power supply VCC of fan is not switched off.
When fan breaks down, the voltage that the noninverting input of comparator U1 is sent to by resistance R4 is zero, and power supply VCC leads to
Cross after resistance R5 partial pressures and be sent to the reverse input end of U1 comparators, the voltage of the noninverting input of U1 comparators compares reverse input end
Voltage it is low, the output terminal of comparator U1 output low level, triode Q3 conductings, due to (or the buzzing of Light-emitting diode LED 1
Device BUZ1) it is series between the emitter of power supply VCC and triode Q3, so Light-emitting diode LED 1 lights (or buzzer
BUZ1 sends alarm), the input circuit of relay K1 is powered, and the switch of relay K1 is attracted, and normally-closed contact is attracted to normally opened
Here, the power supply VCC of fan is cut off for contact.Protection circuit is set to ensure that the security of fan operation, warning circuit
Staff's timely processing fan failure can be reminded.
As further improvement of the utility model, it is provided between the base stage of the single chip circuit and institute triode Q1
Current-limiting circuit.Current-limiting circuit is set further to protect alignment circuit.
As further improvement of the utility model, the current-limiting circuit is resistance R7.
As further improvement of the utility model, the fan is 3-7, and is connected after the cathode parallel connection of the fan
The collector of triode Q2, the emitter of connecting triode Q1 after the anode parallel connection of the fan.
As further improvement of the utility model, the baking oven outer layer is wrapped with aerogel blanket heat insulation layer.Aerogel blanket is exhausted
Thermosphere can ensure that the temperature of baking oven outer wall will not be too high, avoid the hidden danger of scald.
The beneficial effects of the utility model are：
1st, the utility model is equipped with fan on the basis of original electric-heating-wire-heating between baking oven outlet and chill roll,
Avoid and manually carry out second dry, make that chromatography is more accurate, effectively raise product quality, removes printed matter peculiar smell, production
Efficiency, qualification rate, reduce production cost.
2nd, also make the temperature of printed matter gradually reduce while fan dries printed matter, it is cold in entrance to avoid printed matter
But temperature decrease causes printed matter drastically shrinkage cracking when roller cools down.
3rd, alignment circuit is equipped with fan, alignment circuit can be carried out according to the temperature for the printed matter for exporting out from baking oven
Speed governing, has reached the noise for reducing fan, the purpose of using electricity wisely, energy-saving and emission-reduction.
4th, protection circuit is set to ensure that the security of fan operation.
5th, warning circuit is set to remind staff's timely processing fan failure.
6th, in output terminal multiple fans in parallel of alignment circuit, drying effect of the intaglio printing press to printed matter can be lifted.
7th, baking oven outer layer, which wraps up in the aerogel blanket heat insulation layer set, can ensure that the temperature of baking oven outer wall will not be too high, avoid boiling hot
The hidden danger of wound.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model embodiment；
Fig. 2 is the circuit theory schematic diagram of the utility model embodiment alignment circuit；
Fig. 3 is the circuit theory schematic diagram that the utility model embodiment protection circuit adds light emitting diode；
Fig. 4 is the circuit theory schematic diagram that the utility model embodiment protection circuit adds buzzer；
Reference numeral：1- baking ovens, 2- fans, 3- chill rolls.
Embodiment
The embodiment of the utility model is described in detail below in conjunction with the accompanying drawings.
Embodiment
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of intaglio printing press drying unit, including baking oven 1, chill roll 3, fan 2 and control
The alignment circuit of 2 rotating speed of fan processed；The fan 2 is arranged between the baking oven 1 and the chill roll 3；The alignment circuit bag
Include thermistor RT, single chip circuit, triode Q1, triode Q2, resistance R1, divider resistance R2 and resistance R3, the temperature-sensitive
The AD sampling ends of the resistance RT connections single chip circuit, the pwm signal output terminal of single chip circuit connect the triode Q1
Base stage, the emitter ground connection of the collector of triode Q1 through resistance R1 connections power supply VCC, triode Q1, the base of triode Q2
The collector of pole connecting triode Q1, the collector of emitter connection the power supply VCC, triode Q2 of triode Q2 connect the wind
The cathode of fan, the divider resistance R2 are series between the emitter of triode Q2 and the cathode of the fan, the fan
Anode is grounded through resistance R3.
The utility model exports in baking oven 1 and fan 2 is housed between chill roll 3 on the basis of original electric-heating-wire-heating,
On the one hand avoid and manually carry out second of drying, while, cooling to printed matter more preferable to the drying effect of water-based printing product
Effect is more preferable, makes that chromatography is more accurate, effectively raise product quality, removes printed matter peculiar smell, production efficiency, qualification rate, reduction
Production cost；On the other hand, fan 2 is dried in real time after quickly being printed to printed matter, does not influence the normal work of printing machine
Make, be not take up the extra work time, and cooling procedure temperature gradually reduces, and avoids printed matter cold into chill roll 3
Temperature decrease causes printed matter drastically shrinkage cracking when but.
Also speed governing can be carried out added with alignment circuit, alignment circuit on fan 2 according to the temperature of printed matter, gone out from baking oven 1
When the printed matter temperature come is high, the rotating speed of fan 2 is fast, good heat dissipation effect, when the printed matter temperature come out from baking oven 1 is low, heat dissipation
The rotating speed of fan 2 is slow when effect need not be so obvious, and then reduces the noise of fan 2, the purpose of using electricity wisely, section
Can emission reduction.
The operation principle of alignment circuit is as follows：
The temperature for the printed matter that thermistor RT detections come out from baking oven 1, when temperature is higher, thermistor RT resistance values become
Small, single chip circuit collects temperature value, the duty cycle of the positive pulsewidth square-wave signal of the pwm signal output of single chip circuit (
Preset duty cycle computational methods in the single chip circuit) it is higher, when the temperature is low, the resistance value of thermistor RT becomes larger, monolithic
Electromechanical road collects temperature value, and the duty cycle of the positive pulsewidth square-wave signal of the pwm signal output of single chip circuit is lower.Work as monolithic
During the positive pulsewidth of machine circuit output (i.e. high level), triode Q1 and triode Q2 are in conducting state, and power supply VCC is through three at this time
Pole pipe Q2 powers for fan 2, and when single chip circuit exports negative pulsewidth (i.e. low level), triode Q1 and triode Q2 are in
Cut-off state, at this time power supply VCC power after divider resistance R2 for fan 2, due to the partial pressure of divider resistance R2, fan 2 at this time
The voltage at both ends reduces, and the rotating speed of fan 2 also reduces.If temperature is higher always, positive pulsewidth that single chip circuit persistently exports
Duty cycle it is higher, power supply VCC is that the time that fan 2 is powered is longer through triode Q2, is powered through divider resistance R2 for fan 2
Time it is shorter, fan 2 is in the time of time of high-tension state far above the state of low-voltage at this time, so fan
2 mean speeds are relatively fast, and heat dissipation is obvious；If temperature is low, the duty cycle for the positive pulsewidth that microcontroller persistently exports is lower, power supply
VCC is that the time that fan 2 is powered is shorter through triode Q2, is that the time that fan 2 is powered is longer through divider resistance R2, at this time
Fan 2 is in time of the time far below the state of low-voltage of high-tension state, so 2 mean speed of fan is relatively
Slowly, energy-saving and emission-reduction.
In another embodiment, the alignment circuit further includes protection circuit, the protection circuit include resistance R4,
Resistance R5, comparator U1, triode Q3 and relay K1；The resistance R4 is series at the anode of the fan 2 and the comparison
Between the in-phase input end of device U1, the resistance R5 is series between the inverting input of power supply VCC and comparator U1, and resistance
The resistance value of R5 is much larger than the resistance value that resistance R3 connects with resistance R4, and the output terminal of the comparator U1 is series at the triode Q3
Base stage and power supply VCC between, the grounded collector of triode Q3, the input circuit of the relay K1 is series at power supply VCC
Between the emitter of triode Q3, the output loop of the relay K1 is series in the current supply circuit of fan 2.
In another embodiment, the protection circuit is equipped with current-limiting resistance R6.
In another embodiment, the protection circuit further includes warning circuit, and the warning circuit is series at power supply
Between the emitter of VCC and triode Q3.
In another embodiment, the warning circuit is Light-emitting diode LED 1.
In another embodiment, the warning circuit is buzzer BUZ1.
Protect the operation principle of circuit and warning circuit as follows：
When fan 2 is normal, by detecting the pressure drop of resistance R3, the noninverting input of comparator U1 is sent to by resistance R4,
Power supply VCC is by being sent to the reverse input end of comparator U1 after resistance R5 partial pressures, since the resistance value of resistance R5 is much larger than resistance R3
The resistance value connected with R4, so the voltage of comparator U1 noninverting inputs is higher than the voltage of reverse input end, comparator U1's is defeated
Outlet exports high level, and triode Q3 is not turned on, since Light-emitting diode LED 1 (or buzzer BUZ1) is series at power supply VCC
Between the emitter of triode Q3, so Light-emitting diode LED 1 does not work (or buzzer BUZ1 does not alarm), relay K1
Input circuit no power, the switch of relay K1 is not attracted, i.e. the power supply VCC of fan 2 is not switched off.
When fan 2 breaks down, the voltage that the noninverting input of comparator U1 is sent to by resistance R4 is zero, power supply VCC
By being sent to the reverse input end of U1 comparators after resistance R5 partial pressures, the voltage of the noninverting input of U1 comparators is than reversely input
The voltage at end is low, the output terminal of comparator U1 output low level, triode Q3 conductings, due to (or the bee of Light-emitting diode LED 1
Ring device BUZ1) it is series between the emitter of power supply VCC and triode Q3, so Light-emitting diode LED 1 lights (or buzzing
Device BUZ1 sends alarm), the input circuit of relay K1 is powered, and the switch of relay K1 is attracted, and normally-closed contact is attracted to normal
Open contact here, the power supply VCC of fan 2 is cut off.Protection circuit is set to ensure that the security that fan 2 is run, alarm
Circuit can remind 2 failure of staff's timely processing fan.
In another embodiment, current limiting electricity is set between the base stage of the single chip circuit and institute triode Q1
Road.Current-limiting circuit is set further to protect alignment circuit.
In another embodiment, the current-limiting circuit is resistance R7.
In another embodiment, the fan 2 is 5, and connecting triode Q2 after the cathode parallel connection of the fan 2
Collector, the emitter of connecting triode Q1 after the anode parallel connection of the fan 2.
In another embodiment, the fan 2 is 3, and connecting triode Q2 after the cathode parallel connection of the fan 2
Collector, the emitter of connecting triode Q1 after the anode parallel connection of the fan 2.
In another embodiment, the fan 2 is 7, and connecting triode Q2 after the cathode parallel connection of the fan 2
Collector, the emitter of connecting triode Q1 after the anode parallel connection of the fan 2.
In another embodiment, the baking oven outer layer is wrapped with aerogel blanket heat insulation layer (not marked in figure).Aeroge
Felt heat insulation layer can ensure that the temperature of baking oven outer wall will not be too high, avoid the hidden danger of scald.
Embodiment described above only expresses specific embodiment of the present utility model, its description is more specific and detailed,
But it should not be interpreted as limiting the scope of the present invention.It should be pointed out that for the common of this area
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the scope of protection of the utility model.
Claims (9)
1. a kind of intaglio printing press drying unit, it is characterised in that including baking oven, chill roll, fan and the speed governing for controlling rotation speed of the fan
Circuit；The fan is arranged between the baking oven and the chill roll；It is electromechanical that the alignment circuit includes thermistor RT, monolithic
Road, triode Q1, triode Q2, resistance R1, divider resistance R2 and resistance R3, the thermistor RT connections monolithic are electromechanical
The AD sampling ends on road, the pwm signal output terminal of single chip circuit connect the base stage of the triode Q1, the collector of triode Q1
Emitter ground connection through resistance R1 connections power supply VCC, triode Q1, the collector of the base stage connecting triode Q1 of triode Q2,
The collector of emitter connection the power supply VCC, triode Q2 of triode Q2 connect the cathode of the fan, the divider resistance R2
It is series between the emitter of triode Q2 and the cathode of the fan, the anode of the fan is grounded through resistance R3.
2. intaglio printing press drying unit according to claim 1, it is characterised in that the alignment circuit further includes protection electricity
Road, the protection circuit include resistance R4, resistance R5, comparator U1, triode Q3 and relay K1；The resistance R4 is series at
Between the in-phase input end of the anode of the fan and the comparator U1, the resistance R5 is series at power supply VCC and comparator
Between the inverting input of U1, and the resistance value of resistance R5 is much larger than the resistance value that resistance R3 connects with resistance R4, the comparator U1
Output terminal be series between base stage and the power supply VCC of the triode Q3, the grounded collector of triode Q3, the relay
The input circuit of K1 is series between the emitter of power supply VCC and triode Q3, and the output loop of the relay K1 is series at
In the current supply circuit of fan.
3. intaglio printing press drying unit according to claim 2, it is characterised in that the protection circuit further includes alarm electricity
Road, the warning circuit are series between the emitter of power supply VCC and triode Q3.
4. intaglio printing press drying unit according to claim 3, it is characterised in that the warning circuit is light emitting diode
LED1。
5. intaglio printing press drying unit according to claim 3, it is characterised in that the warning circuit is buzzer BUZ1.
6. intaglio printing press drying unit according to claim 1, it is characterised in that the single chip circuit and the triode
Current limit circuit is set between the base stage of Q1.
7. intaglio printing press drying unit according to claim 6, it is characterised in that the current-limiting circuit is resistance R7.
8. intaglio printing press drying unit according to claim 1, it is characterised in that the fan is 3-7, and the fan
Cathode parallel connection after connecting triode Q2 collector, the emitter of connecting triode Q1 after the anode parallel connection of the fan.
9. intaglio printing press drying unit according to claim 1, it is characterised in that it is exhausted that the baking oven outer layer is wrapped with aerogel blanket
Thermosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721175450.XU CN207241153U (en) | 2017-09-14 | 2017-09-14 | A kind of intaglio printing press drying unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721175450.XU CN207241153U (en) | 2017-09-14 | 2017-09-14 | A kind of intaglio printing press drying unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207241153U true CN207241153U (en) | 2018-04-17 |
Family
ID=61888696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721175450.XU Active CN207241153U (en) | 2017-09-14 | 2017-09-14 | A kind of intaglio printing press drying unit |
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| Country | Link |
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| CN (1) | CN207241153U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464479A (en) * | 2021-08-04 | 2021-10-01 | 深圳市英纳钛克电子科技有限公司 | Hard disk cartridge with controllable fan wind speed |
-
2017
- 2017-09-14 CN CN201721175450.XU patent/CN207241153U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464479A (en) * | 2021-08-04 | 2021-10-01 | 深圳市英纳钛克电子科技有限公司 | Hard disk cartridge with controllable fan wind speed |
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