CN212046472U

CN212046472U - Gloss oil printing device for UV printer

Info

Publication number: CN212046472U
Application number: CN202020692430.5U
Authority: CN
Inventors: 郑才博; 杨春帆
Original assignee: Zhuhai Xuancai Technology Co ltd
Current assignee: Zhuhai Xuancai Technology Co ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2020-12-01
Anticipated expiration: 2030-04-29

Abstract

The utility model discloses a gloss oil printing device for UV printer, which comprises a frame, a cleaning platform and an installation box, wherein the top end of the frame is provided with a workbench, one side of the frame is provided with the cleaning platform, the other side of the frame is provided with a support plate, one side of the cleaning platform is connected with a guide rail, and one side of the guide rail is connected with the installation box in a sliding way, the gloss oil printing device for UV printer can clean a gloss printing nozzle through the cleaning platform, avoids the phenomenon that a large amount of printing ink left after the UV printer works is difficult to clean, can rapidly level and solidify the UV gloss oil at lower temperature through the air storage box, the fan and the heating pipe, so that the gloss oil on the gloss oil printing nozzle has better printing effect, and the temperature control circuit on the circuit board can enable the heating pipe to provide a balanced and continuous heat flow, avoid the influence of unbalanced heat on the optical oil.

Description

Gloss oil printing device for UV printer

Technical Field

The utility model relates to a UV printer field, in particular to gloss oil printing device for UV printer.

Background

The UV printer is a high-tech plate-free full-color digital printer, is not limited by materials, can be used for carrying out color photo-level printing on the surfaces of T-shirts, sliding doors, cabinet doors, sliding doors, glass, plates, various labels, crystals, PVC, acrylic, metal, plastics, stones, leather and the like, and is different from the traditional spray painting in that the UV printer is provided with UV ink and a UV lamp, the components in the UV ink are subjected to cross-linking polymerization reaction under the irradiation of specific wavelength of ultraviolet light, the ink film forming is accelerated, the purpose that the printing is carried out immediately, the vertical sampling and the like is achieved, the problem that white ink is not used together with color ink is solved, and a unique artistic style is formed. The printed pattern has perfect concave-convex feeling, and has elegant, solemn and luxurious visual effect, and the printed pattern has no pungent and bad smell and no toxicity and no damage to printed matter, and the printed pattern has precision up to 1440dpi, as high as the portrait precision and as high as 5 years without fading.

The gloss oil is the material for processing the surface of the material printed by the UV printer, and has the effects of enabling the surface of the material to be smoother and more beautiful, protecting the painting printed on the material, enabling the gloss oil to be preserved for a longer time, having waterproof property, bright effect, scratch resistance and friction resistance, improving the pattern preservation time, reducing the glossiness of the surface of a printed product, and generating classical artistic effect through the conflict of the glossiness, and meanwhile, the effect can not reflect light, and the eyes of an observer can be better protected.

In the printing process, when the ink jet amount of the printing nozzle is large, if the printing nozzle is not cleaned in time, a large amount of left ink is easy to solidify, the next printing is easy to be influenced, and the frequent cleaning of the printing nozzle is very labor-consuming. Meanwhile, in the printing process of the UV printer, if the ambient temperature is low, the viscosity of the UV printer cannot reach the designed viscosity, and the UV gloss oil is not beneficial to leveling and rapid curing.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a gloss oil printing device for UV printer can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a gloss oil printing device for UV printer, includes frame, clean bench and install bin, the workstation is installed on the top of frame, the clean bench is installed to one side of frame, the backup pad is installed to the opposite side of frame, one side of clean bench is connected with the guide rail, one side sliding connection of guide rail has the install bin.

Furthermore, the limiting blocks are installed on two sides of the top end of the cleaning table, the mounting plate is fixedly arranged in the middle of the cleaning table, the filtering plates are installed on two sides of the mounting plate, a plurality of first rotating motors are fixedly installed inside the mounting plate, each first rotating motor is fixedly provided with a fixed column in a rotating shaft, and bristles are fixedly installed on the surface of each fixed column.

Further, the equal fixed mounting in both sides of clean bench bottom has the spout, every the equal fixed sliding connection in inboard of spout has the pulley, two fixed mounting has the baffle between the pulley, a plurality of push rod motor is installed to the both sides of baffle bottom, two the top of spout all is equipped with the water valve.

Furthermore, fixed boxes are fixedly mounted on two sides of the bottom end of the installation box, an air storage box is fixedly mounted on one side of the inside of each fixed box, a fan is fixedly mounted on the top of one side of the inside of each air storage box, a heating pipe is fixedly mounted at the bottom end of each fan, an air guide opening is fixedly formed in the other side of each air storage box, and a gate valve is fixedly mounted at the joint of each air guide opening and the corresponding air storage box.

Further, two the bottom between the fixed case is installed and is printed walking platform, print walking platform's top and install a plurality of gloss oil and print the shower nozzle, the second rotation motor is installed to one side of the inside bottom of install bin, the inside middle part fixed mounting of install bin has two drive wheels, two the equal fixed mounting in surface of drive wheel has the belt, two the other end of belt is all installed on the second and is rotated the surface of motor drive shaft.

Further, circuit board and controller are installed respectively to the both sides on the top of install bin, circuit board and heating pipe electric connection, the controller respectively with guide rail, gloss oil print shower nozzle push rod motor, first rotation motor, second rotation motor, lead to water valve, gate valve and fan electric connection, the controller links to each other rather than through each switch with electrical apparatus.

Furthermore, a temperature control circuit is mounted on the surface of the circuit board, and the temperature control circuit comprises a gain circuit and a pulse width modulation circuit.

Further, the gain circuit includes an amplifier a1, resistors R1-R6, capacitors C1, C3, C5, and the like, one end of the resistor R1 is connected to one end of the resistor R2, one ends of the resistors R1 and R2 are both connected to an external 15V voltage, the other end of the resistor R2 is respectively connected to the reverse input ends of the capacitors C2 and the amplifier a 2, the other end of the resistor R2 is respectively connected to the same-direction input ends of the capacitors C2 and the amplifier a 2, the same-direction input end of the amplifier a 2 is further connected to a resistor R2, the other end of the capacitor C2 is connected to the other end of the capacitors C2, one end of the capacitors C2 is further connected to the resistor R2, two ends of the resistors R2 are connected to the ground, the same-direction input end of the amplifier a 2 is further connected to the resistor R2, the other end of the resistor R2 is connected to the switch S2, the other end of switch S1 is connected with the other end and the ground wire that are connected with resistance R5 respectively, be connected with resistance R3 between amplifier A1 ' S reverse input end and output, resistance R3 ' S both ends are parallelly connected to have electric capacity C3, amplifier A1 ' S output is connected with diode VD1 ' S negative pole and diode VD2 ' S negative pole respectively, diode VD1 ' S positive pole is connected with integrated chip U1 ' S pin 9 and resistance R7 ' S one end respectively, diode VD2 ' S positive ground connection.

Furthermore, the pulse width modulation circuit comprises an integrated chip U1, a triode VT1, a heating tube H, a capacitor C2 and the like, wherein a pin 1 of the integrated chip U1 is respectively connected with the other end of a resistor R7 and a pin 16 of the integrated chip U1, a pin 2 of the integrated chip U1 is grounded, a pin 11 of the integrated chip U1 is respectively connected with a pin 14 and a ground wire of the integrated chip U1, a pin 2 of the integrated chip U1 is grounded, a pin 6 of the integrated chip U1 is connected with one end of a resistor R8, the other end of the resistor R8 is grounded, a pin 5 of the integrated chip U1 is connected with the capacitor C4, the other end of the capacitor C4 is grounded, a pin 13 of the integrated chip U1 is connected with one end of the resistor R9, the other end of the resistor R9 is respectively connected with a base of the triode 1 and one end of the resistor R10, a collector of the triode VT1 is connected with the heating tube H, an emitter of the triode VT1 is connected with one end of a resistor R10 and the anode of a capacitor C2 respectively, the anode of the capacitor C2 is also connected with a 15V external power supply, and the other end of the capacitor C2 is grounded.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. can have the printing shower nozzle to the light through the clean bench that is equipped with to wash, the emergence of a large amount of printing ink of having avoided leaving over behind UV printer work and being difficult to the washing phenomenon, print the shower nozzle when the gloss oil, remove the fixed box to the clean bench top through the guide rail that is equipped with, open through the first rotating motor of controller control this moment, it drives fixed column and brush hair to rotate the motor, make brush hair and gloss oil print and carry out the looks mutual friction between the shower nozzle, thereby print the shower nozzle to the gloss oil and wash, avoided printing ink to adhere to the long-time solidification of gloss oil printing shower nozzle surface always, cause the influence to follow-up printing.

2. Through the air storage box that is equipped with, fan and heating pipe, can make UV gloss oil carry out quick levelling and solidification at the temperature is lower, when being in the lower condition of temperature and using the UV printer, should open the fan switch through the controller earlier, the fan makes the wind heat that produces through the heating pipe, controller control gate valve reciprocates, thereby the size of the wind-guiding sectional area of wind-guiding mouth is controlled, thereby the size of control wind speed, heat the oil printing shower nozzle before the UV printer uses, make the gloss oil on the oil printing shower nozzle have better printing effect.

3. The temperature control circuit on the circuit board that is equipped with can make the heating pipe provide a balanced continuous heat flux, avoids the uneven influence that causes the gloss oil of heat degree, and the value of thermistor R6 is higher when carrying out the circular telegram, and amplifier A1 forward saturation this moment, and integrated chip U1 output low level makes triode VT1 produce the offset. The resistance of the thermistor R6 gradually decreases with the temperature rise of the heating tube, when the input method reaches the final balance, the amplifier A1 enters a saturation state, the integrated chip U1 provides high efficiency, and the power of the heater modulated by 2khz in the circuit is faster than the response speed of the heat loop, so that a balanced and continuous heat flow can be generated.

Drawings

Fig. 1 is the utility model relates to a gloss oil printing device's overall structure schematic diagram for UV printer.

Fig. 2 is the utility model relates to an internal structure schematic diagram of a clean bench that is used for gloss oil printing device of UV printer.

Fig. 3 is the utility model relates to an internal structure schematic diagram of a smooth oil printing device's for UV printer install bin.

Fig. 4 is a circuit diagram of the temperature control circuit of the gloss oil printing apparatus for the UV printer of the present invention.

In the figure: 1. a frame; 2. a work table; 3. a guide rail; 4. a cleaning table; 5. a support plate; 6. a fixed box; 7. installing a box; 8. a gloss oil printing nozzle; 9. a limiting block; 10. mounting a plate; 11. a baffle plate; 12. a push rod motor; 13. a pulley; 14. a chute; 15. a water valve; 16. a filter plate; 17. fixing a column; 18. brushing; 19. a first rotating electric machine; 20. an air storage box; 21. a wind guide opening; 22. a gate valve; 23. a fan; 24. a circuit board; 25. a driving wheel; 26. a belt; 27. a second rotating electric machine; 28. a controller; 29. heating a tube; 30. printing walking platform.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Example 1

As shown in figures 1-4, the gloss oil printing device for the UV printer comprises a rack (1), a cleaning table (4) and an installation box (7), wherein a workbench (2) is installed at the top end of the rack (1), the cleaning table (4) is installed on one side of the rack (1), a supporting plate (5) is installed on the other side of the rack (1), a guide rail (3) is connected to one side of the cleaning table (4), and the installation box (7) is slidably connected to one side of the guide rail (3).

Stopper (9) are all installed to the both sides on clean bench (4) top, and the fixed mounting panel (10) that are equipped with in middle part of clean bench (4), and filter (16) are installed to the both sides of mounting panel (10), and the inside fixed mounting of mounting panel (10) has the first rotation motor (19) of a plurality of, and the equal fixed mounting in axis of rotation of every first rotation motor (19) has fixed column (17), and the equal fixed mounting in surface of every fixed column (17) has brush hair (18).

The equal fixed mounting in both sides of clean bench (4) bottom has spout (14), and the equal fixed sliding connection in inboard of every spout (14) has pulley (13), and fixed mounting has baffle (11) between two pulley (13), and a plurality of push rod motor (12) are installed to the both sides of baffle (11) bottom, and the top of two spout (14) all is equipped with leads to water valve (15).

Circuit board (24) and controller (28) are installed respectively to the both sides on the top of install bin (7), circuit board (24) and heating pipe (29) electric connection, controller (28) respectively with guide rail (3), gloss oil print shower nozzle (8) push rod motor (12), first rotation motor (19), second rotation motor (27), lead to water valve (15), flashboard valve (22) and fan (23) electric connection, controller (28) through each switch with it links to each other with electrical apparatus.

By adopting the technical scheme: can have the printing shower nozzle to wash through clean bench (4) that is equipped with, the emergence of the difficult cleaning phenomenon of a large amount of printing ink of having avoided leaving over behind UV printer work, print shower nozzle (8) after printing when gloss oil, remove fixed box to clean bench (4) top through guide rail (3) that are equipped with, open through first rotation motor (19) of controller (28) control this moment, it drives fixed column (17) and brush hair (18) and rotates to rotate the motor, make brush hair (18) and gloss oil print shower nozzle (8) and carry out the looks mutual friction between, thereby print shower nozzle (8) to gloss oil and wash, it prints shower nozzle (8) long-time solidification to have avoided printing ink to adhere to gloss oil always, cause the influence to follow-up printing.

Example 2

The equal fixed mounting in both sides of install bin (7) bottom has fixed box (6), the equal fixed mounting in one side of every fixed box (6) inside has air storage box (20), the equal fixed mounting in top of every air storage box (20) inside one side has fan (23), the equal fixed mounting in bottom of every fan (23) has heating pipe (29), the opposite side of every air storage box (20) is all fixed and is equipped with wind-guiding mouth (21), the equal fixed mounting in junction of every wind-guiding mouth (21) and air storage box (20) has flashboard valve (22).

Printing walking platform (30) are installed to the bottom between two fixed casees (6), the top of printing walking platform (30) is installed a plurality of gloss oil and is printed shower nozzle (8), second rotation motor (27) are installed to one side of the inside bottom of install bin (7), the inside middle part fixed mounting of install bin (7) has two drive wheels (25), the equal fixed mounting in surface of two drive wheels (25) has belt (26), the surface at second rotation motor (27) transmission shaft is all installed to the other end of two belt (26).

By adopting the technical scheme: through air storage box (20) that is equipped with, fan (23) and heating pipe (29), can make UV gloss oil carry out quick levelling and solidification at the lower temperature, when being in the lower condition of temperature and using the UV printer, fan (23) switch should be opened through controller (28) earlier, fan (23) make the wind heat that produces through heating pipe (29) become hot, controller (28) control gate valve (22) reciprocate, thereby the size of the wind-guiding sectional area of wind-guiding mouth (21) is controlled, thereby the size of control wind speed, heat gloss oil printing shower nozzle (8) before the UV printer uses, make gloss oil printing on shower nozzle (8) have better printing effect.

Example 3

The surface of the circuit board (24) is provided with a temperature control circuit which comprises a gain circuit and a pulse width modulation circuit.

The gain circuit comprises an amplifier A1, resistors R1-R6, capacitors C1, C1 and the like, one ends of the resistor R1 and the resistor R1 are connected, one ends of the resistor R1 and the resistor R1 are both connected with external 15V voltage, the other ends of the resistor R1 are respectively connected with reverse input ends of the capacitor C1 and the amplifier A1, the other ends of the resistor R1 are respectively connected with a same-direction input end of the capacitor C1 and a same-direction input end of the amplifier A1, the same-direction input end of the amplifier A1 is also connected with the resistor R1, the other end of the capacitor C1 is connected with the other end of the capacitor C1, one end of the capacitor C1 is also connected with the resistor R1, two ends of the resistor R1 are connected with the resistor R1 in parallel, the other end of the resistor R1 is respectively connected with the resistor R1 and a ground, the same-direction input end of the amplifier A1 is also connected with the resistor R1, the other end of the switch S36, a resistor R3 is connected between the reverse input end and the output end of the amplifier A1, two ends of the resistor R3 are connected with a capacitor C3 in parallel, the output end of the amplifier A1 is respectively connected with the cathode of a diode VD1 and the cathode of a diode VD2, the anode of the diode VD1 is respectively connected with a pin 9 of the integrated chip U1 and one end of a resistor R7, and the anode of the diode VD2 is grounded.

The pulse width modulation circuit comprises an integrated chip U1, a triode VT1, a heating pipe H, a capacitor C2 and the like, wherein a pin 1 of the integrated chip U1 is respectively connected with the other end of a resistor R7 and a pin 16 of the integrated chip U1, a pin 2 of the integrated chip U1 is grounded, a pin 11 of the integrated chip U1 is respectively connected with a pin 14 and a ground wire of the integrated chip U1, a pin 2 of the integrated chip U1 is grounded, a pin 6 of the integrated chip U1 is connected with one end of a resistor R8, the other end of the resistor R8 is grounded, a pin 5 of the integrated chip U1 is connected with a capacitor C4, the other end of the capacitor C4 is grounded, a pin 13 of the integrated chip U1 is connected with one end of a resistor R9, the other end of the resistor R9 is respectively connected with a base of a triode VT1 and one end of a resistor R10, a collector of the heating pipe H is connected with a collector of the triode 1, an emitter of the triode 1 is respectively connected, the positive electrode of the capacitor C2 is also connected with a 15V external power supply, and the other end of the capacitor C2 is grounded.

By adopting the technical scheme: the temperature control circuit arranged on the circuit board (24) can enable the heating pipe (29) to provide balanced and continuous heat flow, the influence of unbalanced heat on gloss oil is avoided, when the power is on, the value of the thermistor R6 is high, at the moment, the amplifier A1 is saturated in the forward direction, and the integrated chip U1 outputs low level to enable the triode VT1 to generate bias. The resistance of the thermistor R6 gradually decreases with the temperature of the heating tube (29), when the input method reaches the final balance, the amplifier A1 enters a saturation state, the integrated chip U1 provides high efficiency, and the power of the heater modulated by 2khz in the circuit is faster than the response speed of the heat loop, so that uniform and continuous heat flow can be generated.

It should be noted that the utility model relates to a gloss oil printing device for UV printer, when in use,

before printing, if the ambient temperature is low, a fan (23) is turned on by a controller (28) firstly, the fan (23) can heat generated wind through a heating pipe (29) and a temperature control circuit, the interior of an air storage box (20) is filled with hot wind, the controller (28) controls a gate valve (22) to move up and down according to the required wind speed, so that the size of the wind guide sectional area of a wind guide opening (21) is controlled, the wind speed is controlled, the optical oil printing nozzle (8) is heated, after the optical oil printing nozzle (8) is printed, a fixed box is moved to the top of a cleaning table (4) through a guide rail (3) arranged, at the moment, a water through valve (15) is opened by the controller (28), cleaning liquid is injected to the top end surface of a baffle plate (11) from the water through valve (15), and when the optical oil printing nozzle (8) needs to be cleaned, push rod motor (12) are controlled through controller (28) earlier and upwards promote baffle (11), and the washing liquid at baffle top passes through filter (16) this moment and wets brush hair (18), and the first rotation motor (19) of control through controller (28) this moment is opened again, rotates motor and drives fixed column (17) and brush hair (18) and rotate, makes brush hair (18) and gloss oil print and carry out the looks mutual friction between shower nozzle (8) to accomplish and wash gloss oil print shower nozzle (8).

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a gloss oil printing device for UV printer, includes frame, clean bench and install bin, its characterized in that, the workstation is installed on the top of frame, the clean bench is installed to one side of frame, the backup pad is installed to the opposite side of frame, one side of clean bench is connected with the guide rail, one side sliding connection of guide rail has the install bin.

2. A gloss oil printing apparatus for a UV printer according to claim 1, characterized in that: the cleaning device is characterized in that limiting blocks are installed on two sides of the top end of the cleaning table, a mounting plate is fixedly arranged in the middle of the cleaning table, filtering plates are installed on two sides of the mounting plate, a plurality of first rotating motors are fixedly installed inside the mounting plate, fixed columns are fixedly installed on rotating shafts of the first rotating motors, and bristles are fixedly installed on the surfaces of the fixed columns.

3. A gloss oil printing apparatus for a UV printer according to claim 1, characterized in that: the equal fixed mounting in both sides of clean bench bottom has the spout, every the equal fixed sliding connection in inboard of spout has the pulley, two fixed mounting has the baffle between the pulley, a plurality of push rod motor, two are installed to the both sides of baffle bottom the top of spout all is equipped with the water valve.

4. A gloss oil printing apparatus for a UV printer according to claim 1, characterized in that: the air storage box is characterized in that fixed boxes are fixedly mounted on two sides of the bottom end of the mounting box, an air storage box is fixedly mounted on one side inside the fixed boxes, a fan is fixedly mounted on the top of one side inside the air storage box, a heating pipe is fixedly mounted at the bottom end of the fan, an air guide opening is fixedly arranged on the other side of the air storage box, and a gate valve is fixedly mounted at the joint of the air guide opening and the air storage box.

5. A gloss oil printing apparatus for a UV printer according to claim 4, characterized in that: two the bottom between the fixed case is installed and is printed walking platform, print walking platform's top and install a plurality of gloss oil and print the shower nozzle, the second is installed to one side of the inside bottom of install bin and is rotated the motor, the inside middle part fixed mounting of install bin has two drive wheels, two the equal fixed mounting in surface of drive wheel has the belt, two the other end of belt is all installed on the second and is rotated the surface of motor drive shaft.

6. A gloss oil printing apparatus for a UV printer according to claim 1, characterized in that: the utility model discloses a printing device, including install the installation case, the installation case is installed on the installation case, the both sides on the top of installation case are installed circuit board and controller respectively, circuit board and heating pipe electric connection, the controller respectively with guide rail, gloss oil print shower nozzle push rod motor, first rotation motor, second rotation motor, lead to water valve, gate valve and fan electric connection, the controller passes through each switch rather than linking to each other with electrical apparatus.

7. A gloss oil printing apparatus for a UV printer according to claim 6, characterized in that: the surface of the circuit board is provided with a temperature control circuit, and the temperature control circuit comprises a gain circuit and a pulse width modulation circuit.

8. A gloss oil printing apparatus for a UV printer according to claim 7, characterized in that: the gain circuit comprises an amplifier A1, resistors R1-R6, capacitors C1, C3 and C5 and the like, wherein one end of the resistor R1 is connected with one end of a resistor R2, one ends of the resistor R1 and the resistor R2 are both connected with an external 15V voltage, the other end of the resistor R2 is respectively connected with a reverse input end of the capacitor C2 and a reverse input end of the amplifier A2, the other end of the resistor R2 is respectively connected with a same-direction input end of the capacitor C2 and a same-direction input end of the amplifier A2, the same-direction input end of the amplifier A2 is also connected with the resistor R2, the other end of the capacitor C2 is also connected with the other end of the capacitor C2, two ends of the resistor R2 are connected with the resistor R2 in parallel, the other end of the resistor R2 is respectively connected with the resistor R2 and a ground wire, the same-direction input end of the amplifier A2 is also connected with the resistor R2, the other end of switch S1 is connected with the other end and the ground wire that are connected with resistance R5 respectively, be connected with resistance R3 between amplifier A1 ' S reverse input end and output, resistance R3 ' S both ends are parallelly connected to have electric capacity C3, amplifier A1 ' S output is connected with diode VD1 ' S negative pole and diode VD2 ' S negative pole respectively, diode VD1 ' S positive pole is connected with integrated chip U1 ' S pin 9 and resistance R7 ' S one end respectively, diode VD2 ' S positive ground connection.

9. A gloss oil printing apparatus for a UV printer according to claim 7, characterized in that: the pulse width modulation circuit comprises an integrated chip U1, a triode VT1, a heating tube H, a capacitor C2 and the like, wherein a pin 1 of the integrated chip U1 is respectively connected with the other end of a resistor R7 and a pin 16 of the integrated chip U1, a pin 2 of the integrated chip U1 is grounded, a pin 11 of the integrated chip U1 is respectively connected with a pin 14 and a ground wire of the integrated chip U1, a pin 2 of the integrated chip U1 is grounded, a pin 6 of the integrated chip U1 is connected with one end of a resistor R8, the other end of the resistor R8 is grounded, a pin 5 of the integrated chip U1 is connected with a capacitor C4, the other end of the capacitor C4 is grounded, a pin 13 of the integrated chip U9 is connected with one end of a resistor R9, the other end of the resistor R9 is respectively connected with a base of a triode VT1 and one end of a resistor R10, a collector electrode H VT of the triode 1 is connected with an emitter 6867 of the heating tube VT1, and a positive electrode R2 of the resistor R2, the positive electrode of the capacitor C2 is also connected with a 15V external power supply, and the other end of the capacitor C2 is grounded.