CN219154026U - Ink supply device and printing equipment - Google Patents
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- CN219154026U CN219154026U CN202223336633.9U CN202223336633U CN219154026U CN 219154026 U CN219154026 U CN 219154026U CN 202223336633 U CN202223336633 U CN 202223336633U CN 219154026 U CN219154026 U CN 219154026U
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Abstract
The utility model relates to the technical field of UV printing ink supply auxiliary components, and provides an ink supply device and printing equipment. The ink barrel is provided with a first output end and a first input end; the spray head is provided with a second output end, a second input end and an ink-jet end; the inlet of the primary ink box is communicated with the first output end of the ink barrel, and the outlet of the primary ink box is communicated with the second input end of the spray head; the inlet of the secondary ink box is communicated with the second output end of the spray head, and the outlet of the secondary ink box is communicated with the first input end of the ink barrel; the ink barrel, the primary ink box, the spray head and the secondary ink box are connected through pipelines to form a circulation passage, and negative pressure is carried out on the primary ink box and/or the secondary ink box. According to the ink supply device provided by the utility model, the process of spraying ink from the spraying end of the spray head is smoother.
Description
Technical Field
The utility model relates to the technical field of UV printing ink supply assemblies, in particular to an ink supply device and printing equipment with the same.
Background
The UV printer (Ultraviolet LED Inkjet Printer) is a high-tech platemaking-free full-color digital printer, is not limited by materials, and can be used for performing color photo-level printing on the surfaces of T-shirts, sliding doors, cabinet doors, sliding doors, glass, plates, various labels, crystals, acrylic and the like. Among them, UV ink is an important consumable in printing, and thus, how to better supply ink in UV printing is important to the quality of printing.
The ink supply process of the conventional UV printing apparatus is: the ink is pressed into the first-stage ink box by the ink pump from the ink barrel, then flows into the spray head, and finally is sprayed onto the medium by the spray head. The whole process is influenced by the ink supply pressure, and the difficulty in adjusting the ink jet pressure in real time occurs due to unsmooth ink flow.
Disclosure of Invention
The utility model provides an ink supply device, which aims to solve the problem of unsmooth flow caused by unstable ink supply pressure of the existing ink supply device.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
in a first aspect, the present application provides an ink supply device comprising:
an ink tank having a first output and a first input;
the spray head is provided with a second output end, a second input end and an ink-jet end;
the inlet of the primary ink box is communicated with the first output end of the ink barrel, and the outlet of the primary ink box is communicated with the second input end of the spray head;
the inlet of the secondary ink box is communicated with the second output end of the spray head, and the outlet of the secondary ink box is communicated with the first input end of the ink barrel;
the ink barrel, the primary ink box, the spray head and the secondary ink box are connected through pipelines to form a circulating passage, and negative pressure is carried out on the primary ink box and/or the secondary ink box.
The utility model has the beneficial effects that: the ink supply device provided by the utility model is provided with two ink boxes, namely a first ink box and a second ink box, so that an ink barrel, a first ink box, a spray head and a second ink box form a circulating passage, namely, ink flows out of a first output end of the ink barrel, flows into the spray head from a second input end after passing through the first ink box, is selectively sprayed to the surface of a printing medium from an ink jet end of the spray head, or flows out of the second output end, and flows back into the ink barrel from the first input end after passing through the second ink box. Meanwhile, the ink in the spray head can improve the spray range under the condition of carrying out negative pressure on the primary ink box and/or the secondary ink box, so that the process of spraying the ink from the spray end of the spray head is smoother.
In one embodiment, the negative pressure in the primary ink cartridge is lower than the negative pressure in the secondary ink cartridge.
In one embodiment, the ink supply device comprises a first pump body, and two opposite ends of the first pump body are respectively communicated with the ink barrel and the primary ink box so that ink flows to the primary ink box.
In one embodiment, the ink supply device further comprises a second pump body, and two opposite ends of the second pump body are respectively communicated with the ink barrel and the secondary ink box so as to enable ink to flow back to the ink barrel.
In one embodiment, the ink supply device further includes a degassing assembly for removing the gas in the circulation path, opposite ends of the degassing assembly being respectively connected to the ink tank and the primary ink tank.
In one embodiment, the degasification assembly comprises at least two degasification modules, each of which is connected in series or in parallel.
In one embodiment, the outer wall of any one of the ink tank, the primary ink cartridge and the secondary ink cartridge is provided with a heating device.
In one embodiment, a first check valve is arranged on a pipeline between the first output end of the ink barrel and the inlet of the primary ink box;
and/or a second one-way valve is arranged on a pipeline between the outlet of the secondary ink box and the first input end of the ink barrel.
In one embodiment, the ink supply device further includes a filter provided in the circulation passage.
In a second aspect, the present application also provides a printing apparatus comprising the ink supply device described above.
The utility model has the beneficial effects that: the printing equipment provided by the utility model has the advantage that the printing process of the printing equipment is smoother on the basis of the ink supply device.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an ink supply device according to an embodiment of the present utility model.
Wherein, each reference sign in the figure:
100. an ink supply device;
10. an ink barrel; 20. a spray head; 30. first-level ink box; 40. a secondary ink cartridge; 10a, a first output; 10b, a first input; 20a, a second output; 20b, a second input; 20c, an ink-jet end; 51. a first pump body; 52. a second pump body; 60. a degasification assembly; 61. a degassing module; 70. a heating device; 81. a first one-way valve; 82. a second one-way valve; 90. a filter;
200. printing medium.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The ink supply system of the conventional UV printing device is generally composed of an ink storage device, an ink cartridge and a spraying device, wherein the ink storage device is communicated with the ink cartridge through a transmission pipeline, and the ink cartridge is communicated with the spraying device through the transmission pipeline, so that the ink sequentially passes through the ink storage device, the ink cartridge and the spraying device, namely, a unidirectional transmission mode is adopted. Because the transmission power of the ink depends on the pressure supply to the ink storage device or the ink box, and the one-way transmission is difficult to apply excessive negative pressure, the situation that the ink flows unsmoothly and even blocks in the injection process of the injection device easily occurs.
In view of this, the present application provides an ink supply device 100, through setting up first-level ink box 30 and second-level ink box 40, and, connect through the pipeline between ink drum 10, first-level ink box 30, shower nozzle 20 and the second-level ink box 40 in order to form the circulation passageway, i.e. the circulating flow is carried out by ink drum 10 to second-level ink box 40 in proper order to the ink, then, compare the mode of unidirectional transport ink, the circulation passageway can bear the negative pressure more greatly, thereby improve the speed that the ink was sprayed from the ink jet head 20's ink jet end, make printing process more smooth and easy.
Referring to fig. 1, an ink supply apparatus 100 according to an embodiment of the present application includes an ink tank 10, a nozzle 20, a primary ink cartridge 30, and a secondary ink cartridge 40. Among them, the ink tank 10 is used to store ink, and ink is supplied to the primary ink cartridge 30, the secondary ink cartridge 40, and the head 20, and the primary ink cartridge 30 and the secondary ink cartridge 40 are temporary ink storage containers, and ink is caused to flow to the head 20 by applying negative pressure to each ink cartridge, and is ejected from the head 20. The head 20 is for ejecting ink to be ejected on the surface of the printing medium 200. Wherein the ink tank 10, the primary ink cartridge 30, the head 20, and the secondary ink cartridge 40 are connected by a pipe to form a circulation path.
Specifically, the ink tank 10 has a first output end 10a and a first input end 10b. As can be appreciated, ink flows from the first output 10a of the ink tank 10 and the first input 10b flows into the ink tank 10. However, since the ink adopts a circulating transport flow, after adjusting the inflow and outflow direction of the ink, the ink may flow out of the ink tank 10 from the first input end 10b, or may flow into the ink tank 10 from the first output end 10 a.
The nozzle 20 has a second output end 20a, a second input end 20b, and an ink ejection end 20c. It will be appreciated that ink flows into the ejection head 20 from the second input end 20b, flows out of the ejection head 20 from the second output end 20a, and is ejected from the ink ejection end 20c onto the surface of the print medium 200. In the same way, since the ink adopts the circulation transmission flow, after adjusting the inflow and outflow direction of the ink, the ink may flow out of the nozzle 20 from the second input end 20b or may flow into the nozzle 20 from the second output end 20 a.
The inlet of the primary ink cartridge 30 communicates with the first output 10a of the ink tank 10, and the outlet of the primary ink cartridge 30 communicates with the second input 20b of the nozzle 20. The inlet of the secondary ink cartridge 40 communicates with the second output 20a of the nozzle 20, and the outlet of the secondary ink cartridge 40 communicates with the first input 10b of the ink tank 10. It can be appreciated that the primary ink cartridge 30 and the secondary ink cartridge 40 are respectively connected to the second input end 20b and the second output end 20a of the nozzle 20, that is, by respectively performing negative pressure on the primary ink cartridge 30 and the secondary ink cartridge 40, a pressure difference is formed between the second output end 20a and the second input end 20b of the nozzle 20, so as to adjust the speed of ejecting ink from the ink-ejecting end 20c of the nozzle 20, that is, the problems of unsmooth ink ejection and hole blocking caused by the unadjustable ejection pressure of the nozzle 20 can be effectively solved, and meanwhile, the printing ejection amount of the ink is increased, so as to meet the rapid production requirement of a large amount of ink patterns, improve the printing efficiency, and in the case that the ejection speed of the ink-ejecting end 20c of the nozzle 20 is adjustable, the distance from the ink-ejecting end 20c to the surface of the printing medium 200 can be prolonged, so that the printing apparatus is adapted to a higher printing height, and the probability of scraping between the nozzle 20 and the printing medium 200 is reduced. For example, the maximum distance h from the ink-ejecting end 20c of the nozzle 20 to the surface of the print medium 200 may be 12mm, compared to conventional ink supply systems, for supplying ink using the ink supply device 100 of the present application, which minimizes the risk of scraping of the nozzle 20.
When the pressure difference between the second output end 20a and the second input end 20b of the nozzle 20 is adjusted, the primary ink cartridge 30 is selectively subjected to negative pressure; alternatively, the secondary ink cartridge 40 is subjected to negative pressure; alternatively, negative pressure is applied to both the primary ink cartridge 30 and the secondary ink cartridge 40. It will be appreciated that the adjustment of the ejection pressure at the ink ejection end 20c of the ejection head 20 can be satisfied as long as the pressure difference between the second output end 20a and the second input end 20b of the ejection head 20 is sufficient.
For example, when the circulating flow direction of the ink is from the primary ink tank 30, through the head 20, to the secondary ink tank 40, a low negative pressure may be provided at the primary ink tank 30, a high negative pressure may be provided at the secondary ink tank 40, or no negative pressure may be provided at the primary ink tank 30, and a negative pressure may be provided at the secondary ink tank 40, thus increasing the pressure at which the ink is ejected from the ink ejection end 20c of the head 20. Alternatively, no negative pressure or a negative pressure of the same pressure is provided at both the primary ink tank 30 and the secondary ink tank 40, but the level of the secondary ink tank 40 is higher than the primary ink tank 30, and the pressure at which ink is ejected from the ink ejection end 20c of the head 20 can be increased as well.
For example, when the circulating flow direction of the ink is from the secondary ink tank 40, through the head 20, to the primary ink tank 30, a high negative pressure may be provided at the primary ink tank 30, a low negative pressure may be provided at the secondary ink tank 40, or a negative pressure may be provided at the primary ink tank 30, and no negative pressure may be provided at the secondary ink tank 40, thus increasing the pressure at which the ink is ejected from the ink ejection end 20c of the head 20. Alternatively, no negative pressure or a negative pressure of the same pressure is provided at both the primary ink tank 30 and the secondary ink tank 40, but the level of the primary ink tank 30 is higher than that of the secondary ink tank 40, and the pressure at which ink is ejected from the ink ejection end 20c of the head 20 can be increased as well.
The ink supply device 100 provided by the utility model comprises two ink cartridges, specifically a first ink cartridge and a second ink cartridge, so that the ink tank 10, the primary ink cartridge 30, the spray head 20 and the secondary ink cartridge 40 form a circulation path, namely, ink flows out from a first output end 10a of the ink tank 10, flows into the spray head 20 from a second input end 20b after passing through the primary ink cartridge 30, is selectively sprayed onto the surface of the printing medium 200 from an ink spraying end 20c of the spray head 20, or flows out from the second output end 20a, and flows back into the ink tank 10 from the first input end 10b after passing through the secondary ink cartridge 40. Meanwhile, the ink in the head 20 can be ejected with a higher ejection range in the case of negative pressure to the primary ink cartridge 30 and/or the secondary ink cartridge 40, so that the process of ejecting the ink from the ejection end of the head 20 is smoother.
Referring to fig. 1, in one embodiment, the negative pressure in the primary ink cartridge 30 is lower than the negative pressure in the secondary ink cartridge 40. It will be appreciated that in the present embodiment, the circulating flow direction of the ink is from the primary ink tank 30, through the head 20, and to the secondary ink tank 40, and therefore, in order to achieve the above-described flow direction of the ink, the negative pressure in the primary ink tank 30 is lower than the negative pressure in the secondary ink tank 40. For example, the rated power of the means for pressurizing the primary ink cartridge 30 is smaller than the rated power of the means for pressurizing the secondary ink cartridge 40; alternatively, in the case where the rated power of the pressure supply device is the same, the dwell time for the primary ink tank 30 is smaller than the dwell time for the secondary ink tank 40. In this way, the inflow of ink from the second input end 20b of the head 20 and the outflow from the second output end 20a can be ensured, and the reverse flow of ink can be prevented.
Alternatively, in other embodiments, no negative pressure or a negative pressure of the same pressure is provided at both the primary ink tank 30 and the secondary ink tank 40, but the level of the primary ink tank 30 is lower than the secondary ink tank 40, and the pressure at which ink is ejected from the ink ejection end 20c of the ejection head 20 can be increased as well.
Referring to fig. 1, in one embodiment, the ink supply device 100 includes a first pump body 51, and opposite ends of the first pump body 51 are respectively connected to the ink tank 10 and the first-stage ink tank 30, so that ink flows to the first-stage ink tank 30. As can be appreciated, the first pump body 51 is configured to output ink from the ink tank 10 to the first output port 10a, and then to be transferred from the first output port 10a to the first-stage ink cartridge 30. The first pump body 51 may be, but is not limited to being, a power pump, a centrifugal pump, or the like. Of course, when the transfer direction of the ink is changed, the first pump body 51 is used to provide the power for the ink to flow back from the first-stage ink cartridge 30 into the ink tank 10.
Referring to fig. 1, in one embodiment, the ink supply device 100 further includes a second pump 52, and opposite ends of the second pump 52 are respectively connected to the ink tank 10 and the secondary ink cartridge 40, so as to return the ink to the ink tank 10. It will be appreciated that the second pump body 52 is configured to return ink from the secondary ink cartridge 40 to the first input 10b and then to be transferred from the first input 10b into the ink tank 10. The second pump body 52 may be, but is not limited to being, a power pump, a centrifugal pump, or the like. Of course, the second pump 52 is used to provide power for ink output from the ink into the secondary ink cartridge 40 when the direction of ink transport is changed.
In other embodiments, a first pump body 51 is provided at the first output end 10a of the ink tank 10, and a second pump body 52 is provided at the second output end 20a of the ink tank 10, the liquid ejection directions of the first pump body 51 and the second pump body 52 being opposite. It will be appreciated that depending on the direction of circulation of the ink, the first pump body 51 may be used to pump ink from the ink tank 10 from the first output port and the second pump body 52 may be used to pump external ink from the first input port into the ink tank 10. Of course, it is also possible to pump the external ink into the ink tank 10 from the first output port by the first pump body 51 and pump the ink in the ink tank 10 from the first input port by the second pump body 52.
Referring to fig. 1, in one embodiment, the ink supply device 100 further includes a degassing assembly 60 for removing gas in the circulation path, and opposite ends of the degassing assembly 60 are respectively connected to the ink tank 10 and the primary ink tank 30.
It will be appreciated that the deaeration assembly 60 is primarily configured to remove air from the ink flowing from the ink tank 10 to the primary ink cartridge 30, thereby reducing air bubbles caused by transfer of the ink, and further improving the purity of the ink ejected from the ejection end of the ejection head 20, and ultimately improving the clarity of printing. The deaeration assembly 60 may be understood herein as a suction or negative pressure device that adds negative pressure to the tubing of the ink path, thereby separating the gas from the ink.
Specifically, as shown in FIG. 1, in one embodiment, the degas assembly 60 includes at least two degas modules 61, each degas module 61 being connected in series or in parallel. Here, the degassing modules 61 may be connected in series or in parallel, and the specific connection mode is selected according to the actual use requirement.
For example, the number of the deaeration modules 61 is two, and the two deaeration modules 61 are connected in parallel, and one of the deaeration modules 61 is deaerated by suction or load negative pressure, so that the ink is deaerated by the two-stage deaeration.
Referring to fig. 1, in one embodiment, a heating device is provided on an outer wall of any one of the ink tank 10, the primary ink tank 30, and the secondary ink tank 40. It can be appreciated that the ink is a carbon-based mixed solution, and the fluidity of the ink can be increased by adding a heating device, so that the problem of blocking the ink ejection end 20c of the nozzle 20 is reduced. The heating device can be a water bath heating barrel, a metal medium heating sheet or a heating wire and the like. For example, the ink tank 10 is left standing in a water bath heating tank, and metal medium heating sheets or wires are provided on the outer walls of the primary ink tank 30 and the secondary ink tank 40.
Referring to fig. 1, in one embodiment, a first check valve 81 is provided on a line between a first output end 10a of the ink tank 10 and an inlet of the primary ink cartridge 30; and/or a second one-way valve 82 is provided on the line between the outlet of the secondary cartridge 40 and the first input 10b of the ink tank 10. It can be appreciated that the check valve is used to control the ink to flow according to a preset circulation direction, i.e. to ensure the directionality of the ink flow, so as to facilitate regulation and later maintenance.
Illustratively, as shown in fig. 1, a first check valve 81 is provided on a line between the first output end 10a of the ink tank 10 and the inlet of the primary ink tank 30 to ensure that the flow direction of the ink is from the ink tank 10 to the primary ink tank 30, and a second check valve 82 is provided on a line between the outlet of the secondary ink tank 40 and the first input end 10b of the ink tank 10 to ensure that the flow direction of the ink is from the secondary ink tank 40 to the ink tank 10, i.e., that the flow direction of the ink in the circulation path is from the ink tank 10, through the primary ink tank 30, the head 20, the secondary ink tank 40, and back to the ink tank 10.
Referring to fig. 1, in one embodiment, the ink supply device 100 further includes a filter 90 provided in the circulation path. It is to be understood that the filter 90 is used to filter impurities or large-particle ink particles or the like in the circulation path. Preferably, as shown, a filter 90 is provided at the first output 10a of the ink tank 10, so as to ensure the purity of the ink flowing out of the ink tank 10.
The present application also provides a printing apparatus including the above-described ink supply device 100.
It is understood that the printing apparatus may be a UV printing apparatus or the like, in which ink is supplied by the above-described ink supply device 100, thereby improving smoothness and efficiency in printing.
The printing equipment provided by the utility model has smoother printing process on the basis of the ink supply device 100.
Specifically, the ink flows out from the first output end 10a of the ink tank 10, passes through the first-stage ink cartridge 30, enters the nozzle 20 through the second input end 20b, flows out from the second output end 20a of the nozzle 20, flows through the second-stage ink cartridge 40, and returns to the ink tank 10. By applying negative pressure to the primary ink tank 30 and the secondary ink tank 40, negative pressure is generated in the head 20, and ink is ejected from the ink ejection end 20c of the head 20.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. An ink supply device, characterized in that the ink supply device comprises:
an ink tank having a first output and a first input;
the spray head is provided with a second output end, a second input end and an ink-jet end;
the inlet of the primary ink box is communicated with the first output end of the ink barrel, and the outlet of the primary ink box is communicated with the second input end of the spray head;
the inlet of the secondary ink box is communicated with the second output end of the spray head, and the outlet of the secondary ink box is communicated with the first input end of the ink barrel;
the ink barrel, the primary ink box, the spray head and the secondary ink box are connected through pipelines to form a circulating passage, and negative pressure is carried out on the primary ink box and/or the secondary ink box.
2. The ink supply according to claim 1, wherein: the negative pressure in the primary ink box is lower than the negative pressure in the secondary ink box.
3. The ink supply according to claim 1, wherein: the ink supply device comprises a first pump body, wherein two opposite ends of the first pump body are respectively communicated with the ink barrel and the primary ink box, so that ink flows to the primary ink box.
4. An ink supply according to claim 3, wherein: the ink supply device also comprises a second pump body, wherein the opposite ends of the second pump body are respectively communicated with the ink barrel and the secondary ink box, so that ink flows back to the ink barrel.
5. The ink supply apparatus according to any one of claims 1 to 4, wherein: the ink supply device further comprises a degassing component for removing the gas in the circulation passage, and two opposite ends of the degassing component are respectively communicated with the ink barrel and the primary ink box.
6. The ink supply of claim 5, wherein: the degasification assembly comprises at least two degasification modules, and each degasification module is connected in series or in parallel.
7. The ink supply apparatus according to any one of claims 1 to 4, wherein: the outer wall of any one of the ink barrel, the primary ink box and the secondary ink box is provided with a heating device.
8. The ink supply of claim 7, wherein: a first one-way valve is arranged on a pipeline between the first output end of the ink barrel and the inlet of the primary ink box;
and/or a second one-way valve is arranged on a pipeline between the outlet of the secondary ink box and the first input end of the ink barrel.
9. The ink supply apparatus according to any one of claims 1 to 4, wherein: the ink supply device further includes a filter provided in the circulation path.
10. A printing apparatus, characterized in that: an ink supply device comprising any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223336633.9U CN219154026U (en) | 2022-12-10 | 2022-12-10 | Ink supply device and printing equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223336633.9U CN219154026U (en) | 2022-12-10 | 2022-12-10 | Ink supply device and printing equipment |
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| CN219154026U true CN219154026U (en) | 2023-06-09 |
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| CN202223336633.9U Active CN219154026U (en) | 2022-12-10 | 2022-12-10 | Ink supply device and printing equipment |
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