CN111845045A

CN111845045A - Control method of printing machine with heat dissipation assembly

Info

Publication number: CN111845045A
Application number: CN202010774591.3A
Authority: CN
Inventors: 王社; 燕家辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2020-10-30

Abstract

The invention discloses a control method of a printing machine with a heat dissipation assembly, wherein a temperature sensor detects the temperature of the printing machine, a control element receives the temperature of the printing machine, when the temperature value detected by the temperature sensor is smaller than a first threshold value, the control element controls a ventilation valve to be opened, a heat dissipation fan does not work, an adjusting plate completely seals a heat dissipation hole, a first control valve and a second control valve are closed, a blower is closed, the ventilation valve realizes the gas connection of the whole device, and the heat dissipation is realized through an outer shell and a channel material; after printing is finished, the controller controls the cooling fan to continuously work for a preset time, the ventilation valve is closed, the cooling hole is completely closed, the first control valve is closed, the second control valve is opened, and when the pressure signal of the pressure sensor is not reduced any more, the cooling fan is closed and the second control valve is closed.

Description

Control method of printing machine with heat dissipation assembly

Technical Field

The invention relates to the technical field of printing machines, in particular to a control method of a printing machine with a heat dissipation assembly.

Background

With the rapid development of social economy, the printing machine refers to a machine for printing characters and images, the modern printing machine generally comprises mechanisms such as plate loading, inking, stamping, paper conveying (including folding) and the like, and the working principle of the modern printing machine is as follows: the characters and images to be printed are made into printing plate, then it is mounted on the printing machine, then the ink is coated on the position of the characters and images on the printing plate by manual or printing machine, then it is directly or indirectly transferred on the paper or other printing material (such as textile, metal plate, plastics, leather, wood plate, glass and ceramic) so as to reproduce the same printed matter as the printing plate.

However, the size of the heat dissipation holes of the heat dissipation assembly of the existing printing machine is fixed, which is inconvenient to adjust, and when the printing machine is overheated due to the external environment, the normal heat dissipation of the printing machine is not enough to be ensured, which may affect the normal operation of the printing machine, especially in a high-precision printing machine, the work precision of the printing machine is greatly damaged by dust and water (such as moisture) in the air, and it is difficult to form high-precision printing; thus, the existing needs are not met, for which we propose a printing press with a heat dissipation assembly.

Disclosure of Invention

The invention aims to provide a control method of a printing machine with a heat dissipation component, which aims to solve the problems that the size of a heat dissipation hole of the heat dissipation component of the existing printing machine is fixed, the regulation is inconvenient, the normal heat dissipation of the printing machine cannot be ensured when the interior of the printing machine is overheated due to the external environment, the normal operation of the printing machine is influenced, the printing machine is invaded by dust and water and the like.

In order to achieve the purpose, the invention provides the following technical scheme: a control method of a printing machine with a heat dissipation assembly comprises a heat dissipation device outer shell, wherein a plurality of air channels are uniformly arranged on the rear end face of the heat dissipation device outer shell, a heat dissipation fan is fixedly installed on the inner side of each air channel, a movable bottom plate is movably installed on the bottom face of the heat dissipation device outer shell, two dust plates are uniformly installed above the movable bottom plate, two moisture absorption plates are installed in the middle of the two dust plates, dropping inserting pins are movably installed in the two ends of the movable bottom plate, movable sliding blocks are fixedly installed at the other ends of the dropping inserting pins, a motor is installed in the heat dissipation device outer shell, a motor gear is fixedly installed at the front end of the motor, a transmission gear is installed above the motor gear, a transmission screw rod penetrates through the middle of the transmission gear, and a plurality of adjusting sliding blocks are uniformly and movably installed on, the up end fixed mounting who adjusts the slider has the support column, the up end fixed mounting of support column has the regulating plate, the preceding terminal surface of heat abstractor shell body evenly is provided with a plurality of louvre, the printing machine still includes: the two moisture absorption plates are a first moisture absorption plate and a second moisture absorption plate, the two dust prevention plates are a first dust prevention plate and a second dust prevention plate, the two moisture absorption plates and the two dust prevention plates are sequentially arranged from the ventilation channel to one side of the heat dissipation hole to form the first dust prevention plate, the first moisture absorption plate, the second moisture absorption plate and the second dust prevention plate, a first channel and a second channel are respectively arranged on the outer side of the heat dissipation device shell corresponding to the heat dissipation fan and the outer sides corresponding to the two dust prevention plates and the two moisture absorption plates, an air outlet corresponding to the second channel is arranged on the heat dissipation device shell, the air outlet is positioned on one side of the second dust prevention plate close to the heat dissipation hole, a ventilation valve is arranged on the air outlet, a third dust prevention plate and a third dust prevention plate are arranged on the movable bottom plate, the third dust prevention plate is close to one side of the two dust prevention plates and the two moisture absorption plates, a blower is arranged on one side, far away from the third dust guard, of the third moisture absorption plate, a first air inlet and a second air inlet are arranged on the third dust guard, the first air inlet is communicated with the first channel, the second air inlet is communicated with the space between the first moisture absorption plate and the second moisture absorption plate, a first control valve is arranged in the first air inlet correspondingly, a second control valve is arranged in the second air inlet correspondingly, the space between the ventilation channel and the first dust absorption plate in the shell of the heat dissipation device is a first low-cleanness space, the space between the second dust guard and the heat dissipation holes in the shell of the heat dissipation device is a second high-cleanness space, the second space corresponds to sensitive components of the printer sensitive to dust and water, and the first space corresponds to relatively insensitive components of the printer sensitive to dust and water, the heat dissipation device shell and the materials surrounding the first channel and the second channel are both high-heat-conductivity materials, the third moisture absorption plate is made of a moisture absorption material capable of being recycled, and the heat dissipation device further comprises a control element, a temperature sensor and a pressure sensor; the control method comprises the following steps: the temperature sensor detects the temperature of the printing machine, the control element receives the temperature of the printing machine, when the temperature value detected by the temperature sensor is smaller than a first threshold value, the control element controls the ventilation valve to be opened, the heat dissipation fan does not work, the adjusting plate completely seals the heat dissipation hole, the first control valve and the second control valve are closed, the air feeder is closed, the ventilation valve realizes the gas connection of the whole device, and the heat dissipation is realized through the outer shell and the channel material; after printing is finished, the controller controls the cooling fan to continuously work for a preset time, the ventilation valve is closed, the cooling hole is completely closed, the first control valve is closed, the second control valve is opened, and when the pressure signal of the pressure sensor is not reduced any more, the cooling fan is closed and the second control valve is closed.

Preferably, when the temperature of receiving temperature sensor is greater than first threshold and is less than the second threshold, control element control the ventilation valve is opened, radiator fan works, the regulating plate seals completely the louvre hole, first and second control valve is opened, the forced draught blower is opened, control element receives the pressure signal that the inside air pressure that pressure sensor detected formed, works as when pressure signal is greater than first pressure threshold the forced draught blower is closed, first and second control valve is closed, first pressure threshold is greater than 1 standard atmospheric pressure carry out the circulation of air in first passageway and the second passageway.

Preferably, when the temperature received from the temperature sensor is greater than a second threshold, the control unit controls the blower to operate, the vent valve is closed, the heat dissipation hole is fully opened, the blower operates, and the first and second control valves are opened.

Preferably, the printing machine still includes control panel be provided with the button of independent control on the printing machine when the button is pressed, the vent valve is closed, first control valve is opened, the forced draught blower work, control element corresponds the difference according to the different temperatures that set up in the control panel the louvre is opened to the louvre opening relation, control element carries out according to above-mentioned opening relation the opening degree of the removal control louvre of regulating plate.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, through carrying out corresponding heat dissipation methods at different temperatures, the control of air water and dust in the interior can be more accurately realized, and different mode control can be carried out at different temperatures or under different requirements, so that high-precision printing is realized, and meanwhile, energy conservation and emission reduction are realized.

Drawings

FIG. 1 is a schematic structural view of the present invention as a whole;

FIG. 2 is a cross-sectional view of the present invention in its entirety;

FIG. 3 is an enlarged view of a portion of the outer casing of the heat dissipating device of the present invention;

FIG. 4 is a partial sectional view of the heat sink housing according to the present invention;

FIG. 5 is a schematic structural view of the motor of the present invention;

FIG. 6 is an overall cross-sectional view of the preferred embodiment of the present invention;

fig. 7 is a partial structure enlarged view of the movable base plate of the present invention.

In the figure: 1. a heat sink outer housing; 2. heat dissipation holes; 3. an adjusting plate; 4. a heat radiation fan; 5. an air duct; 6. a dust-proof plate; 7. a moisture absorption plate; 8. a movable bottom plate; 9. a movable slide block; 10. placing the falling inserting pin; 11. a support pillar; 12. adjusting the sliding block; 13. a drive screw; 14. a guide bar; 15. a transmission gear; 16. a motor gear; 17. a motor; 18. a first channel; 19. a second channel; 20. an air outlet; 21. a third dust prevention plate; 22. a third moisture absorption plate; 23. a first air inlet; 24. and a second air inlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 5, an embodiment of the present invention includes: a printing machine with a heat dissipation assembly comprises a heat dissipation device outer shell 1, a plurality of air channels 5 are uniformly arranged on the rear end face of the heat dissipation device outer shell 1, a heat dissipation fan 4 is fixedly arranged on the inner side of each air channel 5, a movable bottom plate 8 is movably arranged on the bottom face of the heat dissipation device outer shell 1, two dust guard plates 6 are uniformly arranged above the movable bottom plate 8, two moisture absorption plates 7 are arranged between the two dust guard plates 6 and can absorb moisture of air entering the printing machine from the outside to avoid damage of electronic components in the printing machine, dropping plug-in pins 10 are movably arranged in two ends of the movable bottom plate 8, a movable sliding block 9 is fixedly arranged at the other end of the dropping plug-in pin 10, a motor 17 is arranged in the heat dissipation device outer shell 1, a motor gear 16 is fixedly arranged at the front end of the motor 17, and a, drive gear 15's centre is run through and is installed drive screw 13, the even movable mounting in drive screw 13's the outside has a plurality of adjusting slide 12, adjusting slide 12's up end fixed mounting has support column 11, support column 11's up end fixed mounting has regulating plate 3, can adjust 2 louvres's ventilable aperture, conveniently adjust according to the inside temperature of printing machine, convenient quick heat dissipation, heat abstractor shell body 1's preceding terminal surface evenly is provided with a plurality of louvre 2.

Further, the top surface evenly is provided with a plurality of positioning groove on the inboard of heat abstractor shell body 1, and positioning groove's size is unanimous with the tip outside size of dust guard 6 and moisture absorption plate 7.

Through adopting above-mentioned technical scheme, positioning groove is convenient for fix a position after dust guard 6 and moisture absorption plate 7 installation for dust guard 6 and moisture absorption plate 7 can be with the complete separation in 1 inside ventilation aperture of heat abstractor shell body, better purify the outside air.

Further, the other end of the movable sliding block 9 is fixedly provided with a guide rod 14, the other end of the guide rod 14 is inserted into a guide sliding groove formed in the bottom surface of the heat sink outer shell 1, and a light spring is arranged on the outer side of the guide rod 14.

Through adopting above-mentioned technical scheme, the guide bar supports and leads to activity slider 9, and the activity slider 9 of being convenient for carries out linear movement, and light spring is convenient for can move about slider 9 and reset after the constraint of the power is lost to activity slider 9.

Further, the outer surface of the transmission screw 13 and the inner side of the adjusting slider 12 are provided with threads with the same rotation direction, and the transmission screw 13 controls the adjusting slider 12 through the threads.

Through adopting above-mentioned technical scheme, the screw thread makes adjusting slider 12 move along with adjusting slider 12 in that adjusting slider 13 is rotating can be controlled so that adjusting slider 12 moves for adjusting slider 12 drives support column 11 and adjusting plate 3 and moves, changes 2's of louvre ventilation aperture, better heat dissipation.

Furthermore, a sealing gasket is arranged on the upper surface of the movable bottom plate 8, a communicating clamping groove is formed in the sealing gasket, and the size of the communicating clamping groove is consistent with the outer sizes of the dust guard 6 and the moisture absorption plate 7.

Through adopting above-mentioned technical scheme, the intercommunication draw-in groove makes things convenient for dust guard 6 and hygroscopic plate 7 to pass and install in the inside of activity bottom plate 8, and sealed pad can guarantee that dust and moisture can not carry out the infiltration from the gap department of junction.

Further, the bottom of dust guard 6 and moisture absorption plate 7 is all pegged graft inside the installation draw-in groove of 8 upper surfaces of movable bottom plate, and dust guard 6 and moisture absorption plate 7 pass through the draw-in groove with movable bottom plate 8 and fix.

Through adopting above-mentioned technical scheme, draw-in groove simple structure, manufacturing convenience are convenient for install and dismantle dust guard 6 and hygroscopic plate 7, are convenient for change.

Further, a fixing pin is movably installed between the inner side of the transmission gear 15 and the end of the transmission screw 13, and the transmission gear 15 and the transmission screw 13 are fixed through the fixing pin.

Through adopting above-mentioned technical scheme, fixed pin simple structure, convenient to use, the installation and change of being convenient for, and make drive screw 13 can carry out synchronous revolution along with drive gear 15.

When the invention is used, firstly, the power supply of the device is switched on, after the power supply is switched on, the cooling fan 4 arranged in the rear side air duct 5 of the cooling device outer shell 1 can rotate at high speed to absorb high-heat gas in the printing machine into the cooling device outer shell 1, then the high-heat gas is discharged outwards through the cooling hole 2 on the front end surface of the cooling device outer shell 1, when the temperature in the printing machine is high and rapid cooling is needed, the power supply of the motor 17 can be switched on and started, after the motor 17 is started, the motor gear 16 is driven to rotate so that the transmission gear 15 and the transmission screw 13 fixed with the transmission gear 15 through the fixing pin rotate, when the transmission screw 13 rotates, the adjusting slide 12 can move along the surface of the transmission screw 13 through the thread friction between the outer surface of the transmission screw and the inner side of the adjusting slide 12, so that the adjusting slide 12 moves through the adjusting support 11 to enable the adjusting, the louvre 2 that originally was sheltered from by the regulating plate 3 part can enlarge gradually this moment, can discharge the inside absorptive heat of heat abstractor shell body 1 outside with higher speed, can be quick dispel the heat to the printing machine inside and cool down, guarantees the normal operation of printing machine, simple structure, convenient operation.

More specifically, the present inventors have found that, although the above-mentioned structure can solve the technical problems well, there still exists a technical problem that the printing precision is not enough when printing with high precision, and after many researches, the applicant has found that, because the heat dissipation fan 4 directly draws air from the outside, dust and water are still serious in the space between the heat dissipation fan 4 and the two moisture absorption plates 7 and the two dust prevention plates 6, and the printing machine is not designed in a targeted manner when designing the printing machine, so that the problems occur in the components of the printing machine in the space, and particularly when the printing head of the printing machine is in the space, the printing precision is seriously reduced, which is not enough to achieve high precision, and therefore, further improvements are made, which are not conflicting with the above-mentioned solutions of the present application, and are further improvements made on the basis of the above-mentioned solutions, the invention is a preferred embodiment, and the specific technical scheme and the control method are as follows: the two moisture absorption plates 7 are a first moisture absorption plate 7 and a second moisture absorption plate 7, the two dust prevention plates 6 are a first dust prevention plate 6 and a second dust prevention plate 6, the two moisture absorption plates 7 and the two dust prevention plates 6 are sequentially arranged from the ventilation channel 5 to one side of the heat dissipation hole 2 as the first dust prevention plate 6, the first moisture absorption plate 7, the second moisture absorption plate 7 and the second dust prevention plate 6, a first channel 18 and a second channel 19 are respectively arranged on the outer side of the heat dissipation device shell 1 corresponding to the heat dissipation fan 4 and the outer sides corresponding to the two dust prevention plates 6 and the two moisture absorption plates 7, air circulation can be carried out in the first channel 18 and the second channel 19, an air outlet 20 corresponding to the second channel 19 is arranged on the heat dissipation device shell 1, the air outlet 20 is positioned on one side of the second dust prevention plate 6 close to the heat dissipation hole 2, and a ventilation valve is arranged on the air outlet 20, when the heat dissipation holes 2 are completely closed, the air inside the heat dissipation holes 2 can pass through the second channel and the first channel from the air outlet 20 and then be sent into the outer shell 1 through the heat dissipation fan 4 again, so that the air can circulate in the sealed space, the flowing air drives the heat inside the heat dissipation holes to dissipate the heat in the outer shell 1 and the shell material forming the first channel 18 and the second channel 19, meanwhile, the air passes through the two dust absorption plates and the two moisture absorption plates for multiple times, the content of water (such as moisture) and dust inside the heat dissipation holes is extremely low, high-precision printing becomes possible, the movable bottom plate 8 is provided with a third moisture absorption plate 22 and a third dust prevention plate 21, the third dust prevention plate 21 is close to one side of the two dust prevention plates 6 and the two moisture absorption plates 7, and the third dust prevention plate 21 and the third moisture absorption plate 22 can enable the air to be filtered for the first time when the air enters the heat dissipation holes, prevent the air with dust and water from directly entering, especially under the condition that the first control valve is opened (the first control valve will be described below), a blower is arranged on one side of the third moisture absorption plate 22 far away from the third dust absorption plate 21, a first air inlet and a second air inlet are arranged on the third dust absorption plate 21, the first air inlet is communicated with the first channel 18, the second air inlet is communicated with the space between the first moisture absorption plate 7 and the second moisture absorption plate 7, a first control valve is arranged in the first air inlet, a second control valve is arranged in the second air inlet, so that the air outside can be sent to the third moisture absorption plate 22 and the third dust absorption plate 21 through the blower when necessary, the first air inlet enables the heat dissipation fan 4 to draw the outside air through the first air inlet when necessary, the second air inlet can enable the air filtered from the outside to enter the space between the two moisture absorption plates, so that when the cooling fan 4 works, the air can be filtered by the second moisture absorption plate 7 and the second dust prevention plate 6 again and then enters a second space (the second space will be described later), because the air is filtered by the two moisture absorption plates and the two dust prevention plates, in the actual process, the spaces on the right sides of the two moisture absorption plates and the two dust prevention plates have higher air purity, that is, less water and dust, and particularly, under the condition that the first control valve is opened, the purity of the spaces is more obvious, for this reason, the space between the ventilation channel 5 and the first dust prevention plate 6 in the cooling device outer shell 1 is a first low-cleanness space, and the space between the second dust prevention plate 6 and the second dust prevention plate 2 in the cooling device outer shell 1 is a second high-cleanness space, the second space corresponds to a sensitive part of the printer sensitive to dust and water, and the first space corresponds to a relatively insensitive part of the printer sensitive to dust and water, so that the space-time high-precision printing can be more reasonably utilized, the heat sink housing 1 and the material surrounding the first and second channels are both highly thermally conductive materials, which allow better heat dissipation, the third moisture absorption plate 22 is made of a reusable moisture absorption material such as silica gel, which can be used in combination with the air exhaust operation performed after the printing, this operation enables the hygroscopic material to be purged again by the gas having a certain temperature inside, the adsorbed water is taken away, and recycling is achieved, and the recycling is matched with the exhaust operation after printing is finished.

The temperature sensor can monitor the internal temperature in real time, different operations can be realized at different temperatures, the pressure sensor can detect the internal air pressure value, so that the air flow can be better circulated to realize the sufficient dissipation of heat, a first mode, a second mode and a third mode are arranged in the control element, when the temperature value received by the control element and received by the temperature sensor is smaller than a first threshold value, the control element works in the first mode, when the temperature value received by the control element and received by the temperature sensor is larger than the first threshold value and smaller than a second threshold value, the control element works in the second mode, and when the temperature value received by the control element and received by the temperature sensor is larger than the second threshold value, the control element is controlled in the third mode; in the first mode, the printing speed or frequency is not high at the moment, the heat dissipation is enough to realize the heat dissipation through the arrangement of the internal air, the outer shell and the channel material, the ventilation valve is arranged to be opened at the moment, the cooling fan 4 does not work, the adjusting plate 3 completely seals the heat dissipation hole 2 (the external air cannot enter), the first control valve and the second control valve are closed, the air blower is closed, and the inside of the whole device is in gas connection through the ventilation valve under the environment, so that the heat can be timely dissipated through the outer shell and the channel material through the transmission of the gas heat, the energy conservation and the noise reduction are realized, and the service lives of the two moisture absorption plates and the two dustproof plates can be greatly prolonged; in the second mode, it is stated that the heat dissipation is not enough to be achieved only through the first mode, if the second mode is not entered, the temperature is gradually increased, for this purpose, the ventilation valve is set to be opened to achieve the air circulation, the cooling fan 4 works to enable the internal air to circulate, the adjusting plate 3 completely closes the heat dissipation hole 2 to prevent the external water and dust from entering, the first and/or second control valve is opened, particularly, the second control valve is preferably only opened to enable the air to enter and then pass through the third moisture absorption plate, the third dust prevention plate, the second moisture absorption plate and the second dust prevention plate, the blower is opened, the control element receives a pressure signal formed by the internal air pressure detected by the pressure sensor, when the pressure signal is greater than a first pressure threshold value, the blower is closed, and the first and second control valves are closed, the first pressure threshold is greater than 1 standard atmospheric pressure, more heat is dissipated through the air circulation, more air is sent to further cool, and due to the increase of the pressure, the density is increased to enhance the heat transfer, so that the temperature is further cooled; in the third mode, it is stated that a simple internal circulation may not be enough to achieve a temperature reduction, the blower operates, the first and second control valves are opened, the blower operates to deliver sufficient air, the vent valve is closed so that the air no longer passes through the first and second passages, the heat dissipation hole 2 is fully opened, the air is fully discharged through the heat dissipation hole 2, and external air hardly enters but is discharged only through the heat dissipation hole due to a large air pressure and flow rate; in the first to third modes, when the printing is finished, the temperature of the internal air still has a certain temperature, the temperature cannot be fast diffused due to the sealing effect, and the adsorbed water vapor can be exhausted due to the material setting of the third moisture absorption plate, for this reason, after the printing is finished, the controller controls the heat radiation fan 4 to continue working for a preset time, the ventilation valve is closed, the heat radiation hole 2 is completely closed, the first control valve is closed, the second control valve is opened, the third moisture absorption plate 22 is blown only through the second air inlet, so that the adsorbed water vapor can be exhausted after the printing is finished, the moisture absorption material is reactivated for recycling, when the pressure signal of the pressure sensor is not reduced, the heat radiation fan 4 is closed and the second control valve is closed, at this moment, the internal air is mostly exhausted, so that the residual air can not have great influence on the printing machine any more; the printing machine further comprises a control panel, in some special cases, temperature can be controlled continuously and more accurately, a fourth mode is arranged in the control element, an independently controlled button is arranged on the printing machine, the fourth mode is forced when the button is pressed, the ventilation valve is closed when the fourth mode is used, the first control valve is opened, the air feeder works, different temperatures can be set in the control panel to correspond to different heat dissipation hole opening relations, the control element performs movement control on the adjusting plate 3 according to the opening relations, accordingly, the heat dissipation holes 2 in different degrees are opened according to the preset temperature relations, rapid operation is achieved, and special requirements are met. In summary, according to the scheme, the control of the air water and the dust in the interior can be realized more accurately, and different mode control can be performed under different temperatures or requirements, so that high-precision printing is realized; more specifically, the invention can switch on and start the power supply of the motor when the temperature in the printing machine is high and the quick heat dissipation is needed, the ventilation aperture of the heat dissipation hole which is partially shielded by the adjusting plate can be gradually enlarged, the heat absorbed in the outer shell of the heat dissipation device can be quickly discharged outwards, the heat dissipation and the temperature reduction can be quickly carried out in the printing machine, the normal operation of the printing machine can be ensured, the side walls of the dustproof plate and the moisture absorption plate which are arranged above the movable bottom plate are in complete contact with the inner wall of the outer shell of the heat dissipation device when the outside air enters, the inner part of the outer shell of the heat dissipation device is sealed, the entering air firstly passes through the dustproof plate and the moisture absorption plate before entering the printing machine, the dustproof plate and the moisture absorption plate can intercept and absorb the dust and water vapor contained in the air, the entering air is ensured, need change at dust guard and moisture absorption plate, only need to slide to opposite direction respectively with a movable slider even for movable slider drives the guide bar and compresses light spring to the inside shrink of heat abstractor shell body, and the tip that the grafting round pin that drops can be transferred to the movable slider simultaneously breaks away from the tip of activity bottom plate, and the activity bottom plate can fall this moment, and what this moment can relax changes dust guard and moisture absorption plate, guarantees the effect to air purification. The printer can more accurately realize the control of the water and the dust in the internal air through an optimal control method, and can carry out different mode control under different temperatures or requirements, thereby realizing high-precision printing.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A method of controlling a printing press having a heat sink assembly comprising a heat sink housing (1), characterized by: the rear end face of the heat dissipation device outer shell (1) is uniformly provided with a plurality of ventilation channels (5), the inner side of each ventilation channel (5) is fixedly provided with a heat dissipation fan (4), the bottom face of the heat dissipation device outer shell (1) is movably provided with a movable bottom plate (8), two dust guard plates (6) are uniformly arranged above the movable bottom plate (8), two moisture absorption plates (7) are arranged in the middle of the two dust guard plates (6), falling insertion pins (10) are uniformly and movably arranged in the two ends of each movable bottom plate (8), movable sliding blocks (9) are fixedly arranged at the other ends of the falling insertion pins (10), a motor (17) is arranged in the heat dissipation device outer shell (1), a motor gear (16) is fixedly arranged at the front end of the motor (17), and a transmission gear (15) is arranged above the motor gear (16), the middle of drive gear (15) is run through and is installed drive screw (13), the even movable mounting in the outside of drive screw (13) has a plurality of adjusting block (12), the up end fixed mounting who adjusts block (12) has support column (11), the up end fixed mounting of support column (11) has regulating plate (3), the preceding terminal surface of heat abstractor shell body (1) evenly is provided with a plurality of louvre (2), the printing machine still includes: the two moisture absorption plates (7) are a first moisture absorption plate (7) and a second moisture absorption plate (7), the two dust absorption plates (6) are a first dust absorption plate (6) and a second dust absorption plate (6), the two moisture absorption plates (7) and the two dust absorption plates (6) are sequentially arranged from the air duct (5) to one side of the heat dissipation hole (2) to form the first dust absorption plate (6), the first moisture absorption plate (7), the second moisture absorption plate (7) and the second dust absorption plate (6), a first channel (18) and a second channel (19) are respectively arranged on the outer side of the heat dissipation device shell (1) corresponding to the heat dissipation fan (4) and the outer side corresponding to the two dust absorption plates (6) and the two moisture absorption plates (7), an air outlet (20) corresponding to the second channel (19) is arranged on the heat dissipation device shell (1), and the air outlet (20) is positioned on one side of the second dust absorption plate (6) close to the heat dissipation hole (2), the ventilating device is characterized in that a ventilating valve is arranged on the air outlet (20), a third moisture absorption plate (22) and a third dust absorption plate (21) are arranged on the movable bottom plate (8), the third dust absorption plate (21) is close to one side of the two dust absorption plates (6) and one side of the two moisture absorption plates (7), a blower is arranged on one side, away from the third dust absorption plate (21), of the third moisture absorption plate (22), a first air inlet and a second air inlet are arranged on the third dust absorption plate (21), the first air inlet is communicated with the first channel (18), the second air inlet is communicated with a space between the first moisture absorption plate (7) and the second moisture absorption plate (7), a first control valve is arranged in the first air inlet correspondingly, a second control valve is arranged in the second air inlet correspondingly, and a first space between the ventilating channel (5) and the first dust absorption plate (6) in the heat dissipation device shell (1) is a low-cleanness first space, the space between the second dust guard (6) and the heat dissipation hole (2) in the heat dissipation device outer shell (1) is a highly clean second space, the second space corresponds to a sensitive component of the printer sensitive to dust and water, the first space corresponds to a relatively insensitive component of the printer sensitive to dust and water, the heat dissipation device outer shell (1) and materials surrounding and forming the first channel and the second channel are both high-heat-conduction materials, the third moisture absorption plate (22) is made of a moisture absorption material capable of being recycled, and the heat dissipation device outer shell further comprises a control element, a temperature sensor and a pressure sensor; the control method comprises the following steps: the temperature sensor detects the temperature of the printing machine, the control element receives the temperature of the printing machine, when the temperature value detected by the temperature sensor is smaller than a first threshold value, the control element controls the ventilation valve to be opened, the heat dissipation fan (4) does not work, the adjusting plate (3) completely seals the heat dissipation hole (2), the first control valve and the second control valve are closed, the air feeder is closed, the ventilation valve realizes the gas connection of the whole device, and the heat dissipation is realized through the outer shell and the channel material; after printing is finished, the controller controls the heat radiation fan (4) to continuously work for a preset time, the ventilation valve is closed, the heat radiation hole (2) is completely closed, the first control valve is closed, the second control valve is opened, and when the pressure signal of the pressure sensor is not reduced any more, the heat radiation fan (4) is closed and the second control valve is closed.

2. The method of controlling a printing press having a heat dissipation assembly as recited in claim 1, wherein: when receiving temperature sensor's temperature is greater than first threshold value and is less than the second threshold value, control element control the ventilation valve is opened, radiator fan (4) work, regulating plate (3) seals completely louvre hole (2), first and second control valve is opened, the forced draught blower is opened, control element receives the pressure signal that the inside air pressure that pressure sensor detected formed, works as when pressure signal is greater than first pressure threshold value the forced draught blower is closed, first and second control valve is closed, first pressure threshold value is greater than 1 standard atmospheric pressure carry out the circulation of air in first passageway (18) and second passageway (19).

3. A control method of a printing press with a heat dissipating assembly according to claims 1 and 2, characterized in that: when the temperature received by the temperature sensor is greater than a second threshold value, the control element controls the blower to work, the ventilation valve is closed, the heat dissipation hole (2) is fully opened, the blower works, and the first control valve and the second control valve are opened.

4. A control method of a printing press with a heat dissipating assembly according to claims 1 and 2, characterized in that: the printing machine further comprises a control panel, a button which is controlled independently is arranged on the printing machine, when the button is pressed down, the ventilation valve is closed, the first control valve is opened, the air feeder works, the heat dissipation holes are opened according to the heat dissipation hole opening relation that different temperatures set in the control panel are different, and the control element controls the opening degree of the heat dissipation holes through movement of the adjusting plate (3) according to the opening relation.