CN214606581U - Ink pressing device and printing equipment - Google Patents
Ink pressing device and printing equipment Download PDFInfo
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- CN214606581U CN214606581U CN202022478135.2U CN202022478135U CN214606581U CN 214606581 U CN214606581 U CN 214606581U CN 202022478135 U CN202022478135 U CN 202022478135U CN 214606581 U CN214606581 U CN 214606581U
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Abstract
The utility model belongs to the technical field of print, solved current pressure china ink device piezoelectricity back, the technical problem of surplus china ink drippage provides a pressure china ink device and printing apparatus. Wherein the ink pressing device includes: a first sub cartridge and a head; the first auxiliary ink box supplies ink for the spray head and is connected with a switch element; the switch element is also connected with a first pressure system and a second pressure system, and the pressure of the first pressure system is greater than that of the second pressure system; the switching element enables the first auxiliary ink box to be communicated with the first pressure system or the second pressure system; when the first pressure system is communicated with the first auxiliary ink box, first pressure is provided for the first auxiliary ink box, so that ink in the first auxiliary ink box flows to the spray head to be pressed; the switching element connects the second pressure system to the first sub tank to provide a second pressure to the first sub tank to stop pressurizing ink, and the second pressure system includes: the pressure source and the first gas storage component are communicated between the switch element and the pressure source.
Description
Technical Field
The utility model relates to a print technical field, especially relate to an ink pressing device and printing apparatus.
Background
The piezoelectric ink jet uses a piezoelectric driving device to apply a fixed pressure to the ink in the nozzle, so as to continuously jet the ink in a character or graphic recording form.
The ink consumption of the large-size industrial piezoelectric nozzle in the printing and ink pressing industry is large; in order to avoid the phenomenon of ink supply incoherence, the existing voltage ink pressing system adopts a pump to provide certain pressure for an ink box to press ink; when the ink pressing needs to be stopped, the pressure supply is stopped, so that the pressure above the ink box is consistent with the pressure of the nozzle, and the ink stays in the nozzle and does not drip; however, a certain pressure residue exists in the pipeline for providing pressure in the existing ink pressing device during switching, so that the pressure in the ink box cannot be quickly recovered to be consistent with the pressure of the nozzle, and further, residual ink drips to influence the printing effect; therefore, the existing ink pressing device has the technical problem that after ink pressing is finished, residual ink drops to influence the printing effect.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the utility model provides an ink pressing device and printing apparatus for solve current ink pressing device and have the technical problem who prints the effect after printing, the surplus ink drippage influence.
An aspect of the present invention provides an ink pressing device, including: a pair of ink cartridges and a head; the first auxiliary ink box supplies ink for the spray head and is connected with a switch element; the switch element is also connected with a first pressure system and a second pressure system, and the pressure of the first pressure system is greater than that of the second pressure system; the switching element communicates the first sub tank with the first pressure system or the second pressure system; when the first pressure system is communicated with the first auxiliary ink box, first pressure is provided for the first auxiliary ink box, so that the ink of the first auxiliary ink box flows to the spray head to be pressed; switching the switch element to enable the second pressure system to be communicated with the first auxiliary ink box, and providing second pressure for the first auxiliary ink box to stop ink pressing; the second pressure system includes: a pressure source and a first gas storage assembly; the pressure source provides a second pressure to the first secondary ink cartridge; the first air storage component is communicated between the first auxiliary ink box and the pressure source.
Further, the first pressure system is a positive pressure system, and the second pressure system is a negative pressure system.
Further, a first pressure gauge is used for monitoring the air pressure in the first air storage assembly.
Further, the second pressure system further comprises: and the gas storage element is communicated between the first gas storage component and the pressure source.
Further, the second pressure system further comprises: the second pressure gauge is used for monitoring the air pressure in the air storage element; an air valve in communication with the gas storage member.
Further, the second pressure system further comprises: and the ink discharge valve is communicated with the bottom of the air storage element.
Further, the ink pressing device further includes: the second auxiliary ink box is communicated with one end part of the spray head far away from the first auxiliary ink box; a third pressure system communicating with the second sub-tank and providing a third pressure to the second sub-tank; the pressure of the third pressure system is less than the pressure of the second pressure system.
Further, the third pressure system includes: and the second gas storage component is communicated with the second auxiliary ink box.
Further, the ink pressing device further includes: a main ink cartridge for supplying ink to the first sub ink cartridge; the second sub tank communicates with the main tank.
Further, the ink pressing device further includes: and the circulating pump is communicated between the second auxiliary ink box and the main ink box.
Another aspect of the present invention provides a printing apparatus, the apparatus comprising any one of the above ink-pressing devices.
To sum up, the utility model has the advantages that:
because the first auxiliary ink box is communicated with the switch element, the first auxiliary ink box is communicated with the first pressure system or the second pressure system through the switch element, and when the first auxiliary ink box is communicated with the larger first pressure system, the first pressure system provides larger pressure for the first auxiliary ink box, so that ink flows from the auxiliary ink box to the spray head to realize ink pressing, and the pressure in the first auxiliary ink box can be specifically larger than the pressure of the spray head; when the ink pressing needs to be stopped, the switch element is switched to provide a second pressure for the first auxiliary ink box, and the pressure of the second pressure system is smaller than that of the first pressure system; therefore, the pressure of the first sub ink box can be changed only by switching the switch element, the process is rapid, and the pressure of the first pressure system is smaller than that of the first pressure system, so that the internal pressure of the first main ink box can be rapidly recovered to the pressure before ink pressing, namely, the residual ink can be rapidly sucked, and the influence on the printing effect caused by the residual ink in the spray head which is dropped by the pressure residue in the first main ink box is reduced; the technical problem that after printing in the existing ink pressing device is finished, the printing effect is influenced by the dropping of residual ink is solved; the pressure of the first auxiliary ink box can be quickly recovered, and the technical effect that the printing effect is influenced by the dropping of residual ink is avoided.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, without creative efforts, other drawings can be obtained according to these drawings, and these drawings are all within the protection scope of the present invention.
Fig. 1 is a schematic structural view of an ink pressing device according to a first embodiment of the present invention;
fig. 2 is a schematic structural view of an ink pressing device according to a second embodiment of the present invention.
Parts and numbering in the drawings:
1. a main ink cartridge; 2. a first filter; 3. an ink supply pump; 4. a first check valve; 5. a first sub ink cartridge; 6. a second filter; 7. a spray head; 8. an ink amount regulating valve; 9. a second set of ink cartridges; 10. a pressure regulating valve; 11. a second one-way valve; 12. a switching element; 13. a first gas storage assembly; 14. a first pressure gauge; 15. an ink release valve; 16. a gas storage element; 17. a second pressure gauge; 18. an air valve; 19. a pressure source; 20. a second gas storage assembly; 21. a third pressure gauge; 22. a circulation pump; 23. a pressure regulating filter; 24. a precision pressure regulating valve; 25. and a gas filter.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. In case of conflict, various features of the embodiments and examples of the present invention may be combined with each other and are within the scope of the present invention.
The utility model discloses a first embodiment provides an ink pressing device, as shown in figure 1, include: a main ink box 1, an ink supply pump 3, a first auxiliary ink box 5 and a nozzle 7 which are connected in sequence through an ink supply pipe; the first sub ink box 5 supplies ink for the nozzle 7, and the switch element 12 is connected to the first sub ink box 5; the switch element 12 is also connected with a first pressure system and a second pressure system, and the pressure of the first pressure system is greater than that of the second pressure system; the switching element 12 communicates the first sub tank with the first pressure system or with the second pressure system; when the first pressure system is communicated with the first sub ink box 5, a first pressure is provided for the first sub ink box 5, so that the ink in the first sub ink box 5 flows to the spray head 7 for ink pressing; the changeover switch element 12 communicates the second pressure system with the first sub tank 5 to supply the second pressure to the first sub tank 5 to stop the ink pressing; the second pressure system includes: a pressure source 19, the pressure source 19 providing a second pressure to the first secondary ink tank 5; the first air storage assembly 13 is connected between the switch element 12 and the pressure source 19.
In the embodiment, a first filter 2 is communicated between the main ink box 1 and the ink supply pump 3, and the first filter 2 filters the ink in the main ink box 1 to ensure that the ink entering the first auxiliary ink box 5 is clean and no precipitate blocks the nozzle 7; a first check valve 4 is arranged between the ink supply pump 3 and the first auxiliary ink box 5, and the flow direction of the check valve is from the main ink box 1 to the first auxiliary ink box 5, so that the situation that the ink in the first auxiliary ink box 5 flows back into the main ink box 1 due to overlarge pressure in the first auxiliary ink box 5 or the overfilled ink in the first auxiliary ink box 5 is avoided, the contact between the ink and the air is further reduced, and the possibility that the ink is dried and oxidized is further reduced; a second filter 6 is provided between the first sub tank 5 and the head 7, and filters the ink in the first sub tank 5 and then flows through the head 7.
In the present embodiment, the switching element 12 is provided as a three-way valve, a common end of which communicates with the first sub tank, and the other two ends of which communicate with the first pressure system and the second pressure system, respectively; the first gas storage component can be set in a form of a safety bottle, the pressure source is set as a pressure pump, and the first gas storage component can be set as a negative pressure pump or a positive pressure source according to requirements; because the first sub ink box 5 is communicated with the switch element 12, the first sub ink box 5 is communicated with the first pressure system or the second pressure system through the switch element 12, and when the first sub ink box 5 is communicated with the larger first pressure system, the first pressure system provides larger pressure for the first sub ink box 5, so that the ink flows from the sub ink box to the spray head 7 to realize ink pressing, and particularly, the pressure in the first sub ink box 5 can be larger than the pressure of the spray head 7; when the ink pressing needs to be stopped, the switch element 12 is switched to provide a second pressure for the first auxiliary ink box 5, and the pressure of the second pressure system is smaller than that of the first pressure system; therefore, only the channel of the switch element 12 needs to be switched, that is, the pressure of the first sub ink box 5 is changed, the process is rapid, and the pressure of the first pressure system is smaller than that of the first pressure system, that is, the internal pressure of the first main ink box 1 can be rapidly recovered to the pressure before ink pressing, that is, the residual ink can be rapidly sucked, and the influence on the printing effect caused by the residual ink in the spray head 7 dropped by the pressure residue in the first main ink box 1 is reduced; the pressure source 19 provides a pressure source for the first secondary ink cartridge 5; starting the pressure source 19, wherein the pressure source 19 pumps the air pressure in the first auxiliary ink box 5 and the first air storage component 13 to a second pressure; when the first pressure system is communicated with the first sub ink cartridge 5, that is, the first pressure system provides pressure ink for the nozzle 7, the pressure source 19 can be closed to pump the second sub ink cartridge 9 to a second pressure, and at this time, since the first air storage component 13 stores the second pressure, the first air storage component 13 is equivalent to a pressure source; at the moment when the connection valve port of the switch element 12 is switched to connect the second pressure system and the first sub ink cartridge 5, the second pressure in the first air storage assembly 13 can counteract the residual first pressure in the first sub ink cartridge 5, further, the pressure in the first sub ink cartridge 5 is quickened to recover to the pressure before ink pressing, and the possibility that residual ink of the nozzle 7 drops when ink pressing needs to be stopped after printing is further reduced; because the pressure source 19 is closed, the negative pressure in the first air storage component 13 is utilized to quickly offset the residual first pressure in the first auxiliary ink box 5, the pressure of the first auxiliary ink box 5 can still be quickly recovered, the energy is saved, the pressure recovery of the first auxiliary ink box 5 is accelerated, and the possibility of residual ink dropping of the spray head 7 is reduced; the technical problem that after printing in the existing ink pressing device is finished, the printing effect is influenced by the dropping of residual ink is solved; the technical effects that the pressure of the first auxiliary ink box 5 can be quickly recovered and the printing effect is prevented from being influenced by the dropping of residual ink are achieved; in other embodiments, the switch element may be configured as another switch element, such as an electronic control circuit that connects the first sub tank 5 and the first pressure system or the second pressure system.
In this embodiment, according to requirements, the pressure of the first pressure system may be set to be greater than 1bar, the pressure of the second pressure system may be smaller than 1bar, the second pressure system is preferentially selected as a negative pressure system, and the second pressure is lower than the atmospheric pressure by 3KPa to 5 KPa.
In addition, in this embodiment, the precise ink supply pump 3 is specifically selected as the ink supply pump 3, the specific ink supply pump 3 adopts a stepping motor as a power source, and the controller adopts PWM pulse width modulation to control the stepping motor to control the speed and the ink supply amount; the ink pressing device further comprises a control device, when the first pressure system is communicated with the first main ink box 1, the ink supply pump 3 is started to pump ink in the main ink box 1 to the first auxiliary ink box 5, and in order to balance the pressure in the first auxiliary ink box 5, the control device controls the ink output amount of the ink supply pump 3 to be equal to the ink pressing amount of the nozzle 7, and specifically can also control the ink supply speed of the ink supply pump 3 to be equal to the ink pressing speed of the nozzle 7; thus, the fluctuation of the negative pressure of the ink due to gravity is minimized. When the ink supply is stopped, the ink stored inside the first sub tank 5 is 1/4-1/3 of the volume of the first sub tank 5.
Preferably, the first pressure system is a positive pressure system and the second pressure system is a negative pressure system.
In the embodiment, the first pressure system provides positive pressure for the positive pressure compressed air source, the pressure of the ink at the normal pressure of the spray head 7 is considered, the first pressure system is set as the positive pressure system, the pressure of the ink is convenient to control, excessively complex energy is not needed, and other energy consumption of the whole system is further saved; meanwhile, an external compressed air source is used as a positive pressure source and can be shared with an air source used by an equipment cylinder, so that the equipment cost is reduced; specifically, the first pressure system comprises a positive pressure compressed air source, a pressure regulating filter 23, a precise pressure regulating valve 24 and an air filter 25 which are sequentially communicated; the other end of the gas filter 25 is communicated with the first sub ink box 5, and the positive pressure compressed gas source is filtered and then supplied to the first sub ink box 5; the precision pressure regulating valve 24 is to be stabilized at a pressure greater than 20KPa above atmospheric pressure; the positive pressure compressed air source is preferably a dried and deoxidized gas, and further reduces the occurrence of phenomena such as drying and oxidization of the ink in the first sub cartridge 5 due to contact with air. The second pressure system may be adapted to provide the second pressure using a pressure source 19.
Preferably, the second pressure system further comprises: and the first pressure gauge 14 is used for monitoring the air pressure in the first air storage component 13.
In this embodiment, set up first gas storage subassembly 13, avoid the negative pressure value that pressure source 19 provided too big, with the inside ink suction of first pair of ink horn 5 to the pressure source 19 in, damage pressure source 19, at this moment, first gas storage subassembly 13 plays the effect of protection pressure source 19, specifically can be provided with the liquid level monitoring switch in first gas storage subassembly 13, when the liquid level is sensed to the liquid level monitoring switch, send liquid level signal to remind the workman that ink has been stored in first gas storage subassembly 13, the workman of being convenient for handles as early as possible. In addition, the first air storage component 13 is provided with the first pressure gauge 14, which monitors the pressure in the first air storage component 13, i.e. the pressure inside the first sub ink cartridge 5, so as to conveniently adjust the negative pressure value supplied by the pressure source 19 to the first sub ink cartridge 5, and avoid the excessive negative pressure generated by the pressure source 19. Preferably, an alarm device is further arranged and connected with the first pressure gauge 14, and when the pressure value in the first pressure gauge 14 is greater than a preset pressure value, the alarm device sends out an alarm signal, so that a worker can find that the value of the first pressure gauge 14 is too large.
Preferably, the second pressure system further comprises: and the gas storage component 16, wherein the gas storage component 16 is communicated between the first gas storage component 13 and the pressure source 19.
In this embodiment, the gas storage element is configured as a gas storage tank, which plays a role of buffering; the pressure source 19 is communicated with the upper end part of the air storage element 16, the air storage element 16 is further provided with a buffer negative pressure source, and when the pressure source 19 is closed, the air storage element 16 is used as the negative pressure source to provide negative pressure capability for the first auxiliary ink box 5, so that the speed of recovering the pressure of the first auxiliary ink box 5 is further increased; in addition, the air storage element 16 can further prevent the ink in the first sub ink box 5 from being pumped to the pressure source 19 by the pressure source 19 to damage the pressure source 19, and the safety factor is further improved.
Preferably, the second pressure system further comprises: a second pressure gauge 17 for monitoring the pressure inside the gas storage element 16; the air valve 18, the air valve 18 communicates with the air storage member 16.
In this embodiment, the second pressure gauge 17 is arranged to monitor the pressure inside the air storage component 16, so as to prevent the over-large negative pressure inside the air storage component 16 from causing the ink inside the first sub ink cartridge 5 to be sucked into the air storage component 16; when the negative pressure value in the second pressure gauge 17 is too large, the air valve 18 is opened to communicate the air storage element 16 with the outside air, so as to increase the pressure in the air storage element 16 and the pressure in the first sub ink cartridge 5, thereby reducing the possibility that the ink in the first sub ink cartridge 5 is sucked into the air storage element 16.
Preferably, the second pressure system further comprises: and the ink discharging valve 15, wherein the ink discharging valve 15 is communicated with the bottom of the air storage element 16.
In this embodiment, when the air storage component 16 sucks the ink in the first ink cartridge into the air storage component 16, the ink discharge valve 15 is opened to discharge the ink in the air storage component 16, so as to prevent the ink from entering the pressure source 19 and damaging the pressure source 19. Specifically, a liquid level monitoring switch is arranged inside the gas storage element 16, when the liquid level monitoring switch monitors that the liquid level inside the gas storage element 16 reaches a preset value, an alarm is given out, the ink release valve 15 is opened, the ink in the gas storage element 16 is discharged, and the ink in the gas storage element 16 is prevented from being stored too much.
The utility model discloses the second embodiment provides an ink pressing device, as shown in FIG. 2, different from the first embodiment in that this ink pressing device still includes: a second sub ink tank 9 communicating with one end of the head 7 away from the first sub ink tank 5; a third pressure system which is communicated with the second sub ink box 9 and provides a third pressure for the second sub ink box 9; the pressure of the third pressure system is less than the pressure of the second pressure system.
Preferably, the third pressure system comprises a second air reservoir assembly 20, the second air reservoir assembly 20 being in communication with the second sub cartridge 9.
Specifically, in this embodiment, the second gas storage assembly 20 is configured as a safety bottle; the second air storage component 20 is communicated between the second secondary ink box 9 and the air storage element 16, namely, the pressure source 19 provides negative pressure for the air storage element 16 and provides negative pressure for the second air storage component 20 at the same time, so that negative pressure resources are saved; a pressure regulating valve 10 is arranged between the second sub ink cartridge 9 and the second air storage component 20 and is used for regulating the pressure of the second air storage component 20, and the second air storage component 20 is communicated with a third pressure gauge 21 and is used for monitoring the pressure inside the second air storage component 20 so as to monitor the pressure inside the second air storage component 20. Because the third negative pressure system shares the negative pressure source of the second negative pressure system and is provided with the pressure regulating valve 10, the negative pressure source of the second negative pressure system is conveniently and reasonably distributed to the first air storage component 13 and the second air storage component 20, namely, the pressure on two end parts of the spray head 7 is reasonably regulated, and further, the ink inside the spray head 7 is convenient to circulate; when the first pressure system is communicated with the first auxiliary ink box 5, the third pressure system is closed to provide third pressure for the second auxiliary ink box 9, when the first auxiliary ink box 5 is communicated with the second pressure system, the air pressure received at two ends of the spray head 7 is inconsistent, so that the ink flows from the first auxiliary ink box 5 to the spray head 7 and flows into the second auxiliary ink box 9, the ink forms a loop at the spray head 7, and the ink is prevented from being solidified and blocking the spray head 7 due to long-term rest of the ink at the spray head 7. The pressure difference between the third pressure system and the second pressure system was 0.2 KPa.
Preferably, the ink pressing device further includes: a main ink tank 1, the main ink tank 1 being for supplying ink to a first sub ink tank 5, and a second sub ink tank 9 being in communication with the main ink tank 1.
In the embodiment, an ink amount regulating valve 8 is arranged between the second sub ink box 9 and the nozzle 7, and the ink amount regulating valve 8 is used for regulating the ink amount from the nozzle 7 to the second sub ink box 9, so that the circulating amount of the ink of the nozzle 7 can be monitored; a second check valve 11 is further arranged between the second sub ink box 9 and the main ink box 1, so that ink in the second sub ink box 9 flows to the main ink box 1, and the phenomenon that the ink is sucked to the second sub ink box 9 from the main ink box 1 to cause suck-back due to overlarge pressure negative pressure value in the second sub ink box 9 is avoided. When the ink supply pump 3 pumps the ink in the main ink cartridge 1 to the first sub ink cartridge 5, a suction force is generated inside the main ink cartridge 1, the suction force pumps the ink in the second sub ink cartridge 9 to the main ink cartridge 1, and thus a cycle is formed; the negative pressure generated when the main ink cartridge 1 supplies ink is used as one of the powers for ink circulation, while the main ink cartridge 1 is prevented from contacting the outside air.
Preferably, the ink pressing device further includes: and the circulating pump 22 is communicated between the second auxiliary ink box 9 and the main ink box 1.
In this embodiment, a liquid level monitoring switch is installed in the second sub ink cartridge 9, and when the liquid level monitoring switch is turned off, that is, when the liquid level is monitored, the circulating pump 22 is started to pump the ink in the second sub ink cartridge 9 to the main ink cartridge 1, so as to prevent the ink in the second sub ink cartridge 9 from overflowing due to excessive ink; when the liquid level signal is on, the circulation pump 22 is stopped; the negative pressure generated by the circulation pump 22 and the main ink tank 1 acts as the motive force for the circulation of the ink.
Another aspect of the present invention is to provide a printing apparatus, which includes the ink pressing device according to any of the above embodiments, and the related structure of the ink pressing device please refer to the foregoing description, which is not repeated herein.
In the embodiment, since the printing apparatus employs the above-described inking device, the printing apparatus has all the advantages of the above continuous inking device; because the ink pressing device is communicated with the switch element 12 on the first auxiliary ink box 5, the first auxiliary ink box 5 is communicated with the first pressure system or the second pressure system through the switch element 12, and when the first auxiliary ink box 5 is communicated with the larger first pressure system, the first pressure system provides larger pressure for the first auxiliary ink box 5, so that the ink flows from the auxiliary ink box to the spray head 7 to realize ink pressing, and particularly, the pressure in the first auxiliary ink box 5 can be larger than the pressure of the spray head 7; when the ink pressing needs to be stopped, the switch element 12 is switched to provide a second pressure for the first auxiliary ink box 5, and the pressure of the second pressure system is smaller than that of the first pressure system; therefore, only the channel of the switch element 12 needs to be switched, that is, the pressure of the first sub ink box 5 is changed, the process is rapid, and the pressure of the first pressure system is smaller than that of the first pressure system, that is, the internal pressure of the first main ink box 1 can be rapidly recovered to the pressure before ink pressing, that is, the residual ink can be rapidly sucked, and the influence on the printing effect caused by the residual ink in the spray head 7 dropped by the pressure residue in the first main ink box 1 is reduced; the pressure source 19 provides a pressure source for the first secondary ink cartridge 5; starting the pressure source 19, wherein the pressure source 19 pumps the air pressure in the first auxiliary ink box 5 and the first air storage component 13 to a second pressure; when the first pressure system is communicated with the first sub ink cartridge 5, that is, the first pressure system provides pressure ink for the nozzle 7, the pressure source 19 can be closed to pump the second sub ink cartridge 9 to a second pressure, and at this time, since the first air storage component 13 stores the second pressure, the first air storage component 13 is equivalent to a pressure source; at the moment when the connection valve port of the switch element 12 is switched to connect the second pressure system and the first sub ink cartridge 5, the second pressure in the first air storage assembly 13 can counteract the residual first pressure in the first sub ink cartridge 5, further, the pressure in the first sub ink cartridge 5 is quickened to recover to the pressure before ink pressing, and the possibility that residual ink of the nozzle 7 drops when ink pressing needs to be stopped after printing is further reduced; because the pressure source 19 is closed, the negative pressure in the first air storage component 13 is utilized to quickly offset the residual first pressure in the first auxiliary ink box 5, the pressure of the first auxiliary ink box 5 can still be quickly recovered, the energy is saved, the pressure recovery of the first auxiliary ink box 5 is accelerated, and the possibility of residual ink dropping of the spray head 7 is reduced; the technical problem that after printing is finished, residual ink drops to influence the printing effect of the existing printing equipment is solved; the technical effects that the pressure of the first auxiliary ink box 5 can be quickly recovered and the printing effect is prevented from being influenced by the dropping of residual ink are achieved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. An ink press, comprising: a first sub cartridge and a head;
the first auxiliary ink box supplies ink for the spray head and is connected with a switch element;
the switch element is also connected with a first pressure system and a second pressure system, and the pressure of the first pressure system is greater than that of the second pressure system;
the switching element communicates the first sub tank with the first pressure system or the second pressure system;
when the first pressure system is communicated with the first auxiliary ink box, first pressure is provided for the first auxiliary ink box, so that the ink of the first auxiliary ink box flows to the spray head to be pressed;
switching the switch element to enable the second pressure system to be communicated with the first auxiliary ink box, and providing second pressure for the first auxiliary ink box to stop ink pressing;
the second pressure system includes: a pressure source and a first gas storage assembly; the pressure source provides a second pressure to the first secondary ink cartridge; the first air storage component is communicated between the first auxiliary ink box and the pressure source.
2. The inking apparatus according to claim 1, wherein the first pressure system is a positive pressure system and the second pressure system is a negative pressure system.
3. The inking apparatus according to claim 1, wherein said second pressure system further comprises: and the gas storage element is communicated between the first gas storage component and the pressure source.
4. The inking apparatus according to claim 3, wherein said second pressure system further comprises: the second pressure gauge is used for monitoring the air pressure in the air storage element;
an air valve in communication with the gas storage member.
5. The inking apparatus according to claim 3, wherein said second pressure system further comprises: and the ink discharge valve is communicated with the bottom of the air storage element.
6. The inking device according to claim 1, further comprising: the second auxiliary ink box is communicated with one end part of the spray head far away from the first auxiliary ink box;
a third pressure system communicating with the second sub-tank and providing a third pressure to the second sub-tank; the pressure of the third pressure system is less than the pressure of the second pressure system.
7. The inking device according to claim 6, wherein said third pressure system comprises: and the second gas storage component is communicated with the second auxiliary ink box.
8. The inking apparatus according to claim 6, further comprising: a main ink cartridge for supplying ink to the first sub ink cartridge; the second sub tank communicates with the main tank.
9. The inking apparatus according to claim 8, further comprising: and the circulating pump is communicated between the second auxiliary ink box and the main ink box.
10. A printing apparatus, characterized in that it comprises an inking device according to any one of claims 1 to 9.
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| CN202022478135.2U CN214606581U (en) | 2020-10-30 | 2020-10-30 | Ink pressing device and printing equipment |
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| CN202022478135.2U CN214606581U (en) | 2020-10-30 | 2020-10-30 | Ink pressing device and printing equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115230330A (en) * | 2022-08-11 | 2022-10-25 | 广州旭成电子科技有限公司 | Monochromatic ink supply recovery system and method |
| CN115815056A (en) * | 2023-02-13 | 2023-03-21 | 苏州希盟科技股份有限公司 | Glue spraying device and screen processing equipment |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115230330A (en) * | 2022-08-11 | 2022-10-25 | 广州旭成电子科技有限公司 | Monochromatic ink supply recovery system and method |
| CN115815056A (en) * | 2023-02-13 | 2023-03-21 | 苏州希盟科技股份有限公司 | Glue spraying device and screen processing equipment |
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