Ink path system and ink-jet printer

Abstract

The utility model relates to an ink path system and an ink-jet printer, the ink path system comprises an ink supply pipeline and an ink-jet pipeline, the ink supply pipeline comprises an ink supply barrel, an ink supply pump, an ink supply box and a diverter which are sequentially connected through a pipeline; the ink jet pipeline comprises a negative pressure ink bag and a printing head which are sequentially connected through a pipeline, the negative pressure ink bag is connected with the flow divider through a pipeline, and the negative pressure ink bag is used for balancing the ink inlet pressure of the printing head. According to the printing head, stable flowing of printing ink of all the liquid discharging pipes is guaranteed through the flow divider, the pressure of the printing ink is adjusted through the negative-pressure ink bag so that the pressure of the ink inlet of the printing head can be constant, and therefore the phenomena of ink flying and ink interruption caused by pressure fluctuation are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of inkjet printing, in particular to an ink path system and an inkjet printer. Background Art

[0002] Inkjet printers provide extremely high production efficiency for the printing industry. Under normal working conditions, the printer can spray ink to the printing medium continuously and quickly, so this also requires ensuring the continuous supply of ink at the print head.

[0003] The current ink circuit system often encounters problems such as pressure fluctuations in ink supply and unbalanced ink flow during operation, which leads to unbalanced ink pressure at the print head, resulting in printing failures such as ink flying and ink breakage. Such failures are difficult to monitor and may result in a high scrap rate when discovered. Utility Model Content

[0004] Based on the above description, the utility model provides an ink circuit system and an inkjet printer, aiming to solve the problems of pressure fluctuation and unbalanced ink diversion in the existing ink circuit system.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] An ink path system, comprising:

[0007] The ink supply pipeline includes an ink supply barrel, an ink supply pump, an ink supply box and a flow divider which are sequentially connected through pipelines;

[0008] The inkjet pipeline comprises a negative pressure ink bag and a print head which are sequentially connected through a pipeline, wherein the negative pressure ink bag is connected to the diverter through the pipeline, and the negative pressure ink bag is used to balance the ink inlet pressure of the print head.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, a liquid level sensor is provided in the ink supply box.

[0011] Furthermore, the ink supply box is provided with a pressure relief valve.

[0012] Furthermore, a heating element is provided in the ink supply cartridge.

[0013] Furthermore, the flow divider includes a box body, a liquid inlet pipe and at least two liquid discharge pipes, the liquid inlet pipe is arranged on the first surface of the box body, and each of the liquid discharge pipes is arranged on the second surface of the box body.

[0014] Furthermore, the ink supply pipeline includes a first filter, and the first filter is connected to the ink supply box and the diverter through pipelines respectively.

[0015] Furthermore, the inkjet pipeline includes a second filter, and the second filter is connected to the diverter and the negative pressure ink bag through pipelines respectively.

[0016] In a second aspect, an inkjet printer comprises the ink path system described in the first aspect.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0018] (1) The present application ensures the stable flow of ink in each discharge pipe through a flow diverter, and adjusts the ink pressure through a negative pressure ink bag to achieve a constant pressure at the ink inlet of the print head, thereby reducing the phenomenon of ink flying and ink breaking caused by pressure fluctuations.

[0019] (2) The present application uses a heating element to prevent the ink from being too cold and affecting its flow, thereby affecting the printing quality.

[0020] (3) The present application mainly uses the first filter to filter out impurities and bubbles to prevent them from affecting the printing quality; and uses the second filter to mainly filter out bubbles to minimize the bubbles in the ink, thereby ensuring the printing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of an ink path system and an inkjet printer provided in an embodiment of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the diverter provided in the embodiment of the utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 10. Ink supply pipeline; 11. Ink supply barrel; 12. Ink supply pump; 13. Ink supply cartridge; 131. Liquid level sensor; 132. Pressure relief valve; 133. Heating element; 14. Diverter; 141. Cartridge body; 142. Liquid inlet pipe; 143. Liquid outlet pipe; 15. First filter; 20. Inkjet pipeline; 21. Negative pressure ink bag; 22. Print head; 23. Second filter. DETAILED DESCRIPTION

[0025] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0027] It will be appreciated that spatial relationship terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be appreciated that, in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "under it" or "under it" will be oriented as being "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0028] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0029] See attached Figures 1-2 As shown, the utility model provides a technical solution: an ink circuit system, including an ink supply pipeline 10 and an inkjet pipeline 20, the ink supply pipeline 10 includes an ink supply barrel 11, an ink supply pump 12, an ink supply cartridge 13 and a diverter 14 connected in sequence through a pipeline; the inkjet pipeline 20 includes a negative pressure ink bag 21 and a print head 22 connected in sequence through a pipeline, the negative pressure ink bag 21 is connected to the diverter 14 through a pipeline, and the negative pressure ink bag 21 is used to balance the ink inlet pressure of the print head 22.

[0030] According to this embodiment, during printing, the ink supply pump 12 delivers the ink from the ink supply barrel 11 to the diverter 14, and the ink is delivered to the corresponding negative pressure ink bag 21 through the diverter 14. When the ink is under negative pressure in the ink bag 21, the negative pressure ink bag 21 adjusts the pressure of the ink to achieve a constant pressure at the ink inlet of the print head 22.

[0031] See attached Figure 1 As shown, in some embodiments, a liquid level sensor 131 is provided in the ink supply cartridge 13 .

[0032] Exemplarily, the liquid level sensor 131 may be a float type liquid level sensor 131 , a pressure type liquid level sensor 131 , or a capacitive type liquid level sensor 131 , etc.

[0033] According to this embodiment, the liquid level sensor 131 is used to detect the remaining amount of ink in the ink supply cartridge 13 to control the opening and closing of the ink supply pump 12 to ensure that the ink supply cartridge 13 has sufficient ink.

[0034] See attached Figure 1 As shown, in some embodiments, a pressure relief valve 132 is provided on the ink supply cartridge 13.

[0035] According to this embodiment, when the pressure in the ink supply cartridge 13 is relatively high, the pressure relief valve 132 relieves the pressure of the ink supply cartridge 13 to prevent the ink supply cartridge 13 from over-expanding, thereby protecting the ink supply cartridge 13.

[0036] See attached Figure 1 As shown, in some embodiments, a heating element 133 is provided in the ink supply cartridge 13 .

[0037] Exemplarily, the heating element 133 may be an electric heating wire or an electric heating tube.

[0038] According to this embodiment, when the ambient temperature is low, the heating element 133 heats the ink so that the ink maintains a suitable temperature, thereby preventing the ink from being too cold and affecting the flow, thereby affecting the printing quality.

[0039] See attached Figures 1-2 As shown, in some embodiments, the diverter 14 includes a box body 141 , a liquid inlet pipe 142 and at least two liquid discharge pipes 143 , the liquid inlet pipe 142 is disposed on a first surface of the box body 141 , and each liquid discharge pipe 143 is disposed on a second surface of the box body 141 .

[0040] Exemplarily, the first surface may be the top of the box body 141 , and the second surface may be the bottom of the box body 141 ; or, the first surface may be the left side of the box body 141 , and the second surface may be the right side of the box body 141 .

[0041] According to this embodiment, the box body 141 ensures that the liquid output of each drainage tube 143 is relatively balanced, and there will not be a situation where one drainage tube 143 flows smoothly while another drainage tube 143 flows slowly, which is conducive to the normal use of the negative pressure ink bag 21.

[0042] See attached Figure 1 As shown, in some embodiments, the ink supply pipeline 10 includes a first filter 15, and the first filter 15 is connected to the ink supply box 13 and the diverter 14 through pipelines.

[0043] According to this embodiment, when the ink supply pump 12 delivers ink to the ink supply cartridge 13, the first filter 15 mainly plays the role of filtering impurities and bubbles to prevent the printing quality from being affected.

[0044] See attached Figure 1 As shown, in some embodiments, the inkjet pipeline 20 includes a second filter 23, and the second filter 23 is connected to the diverter 14 and the negative pressure ink bag 21 through pipelines.

[0045] According to this embodiment, when the diverter 14 delivers ink to the negative pressure ink bag 21, the second filter 23 mainly plays the role of filtering bubbles, reducing the bubbles in the ink to a minimum, thereby ensuring the printing quality.

[0046] The utility model further provides a technical solution: an inkjet printer, comprising the above-mentioned ink path system.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An ink path system, characterized in that: include: An ink supply pipeline (10) comprises an ink supply barrel (11), an ink supply pump (12), an ink supply box (13) and a flow divider (14) which are sequentially connected via a pipeline; An inkjet pipeline (20) comprises a negative pressure ink bag (21) and a print head (22) which are connected in sequence via a pipeline, wherein the negative pressure ink bag (21) is connected to the diverter (14) via the pipeline, and the negative pressure ink bag (21) is used to balance the ink inlet pressure of the print head (22).

2. An ink path system according to claim 1, characterized in that: A liquid level sensor (131) is provided in the ink supply box (13).

3. The ink path system according to claim 1, characterized in that: The ink supply box (13) is provided with a pressure relief valve (132).

4. The ink path system according to claim 1, characterized in that: A heating element (133) is provided in the ink supply box (13).

5. The ink path system according to claim 1, characterized in that: The flow divider (14) comprises a box body (141), a liquid inlet pipe (142) and at least two liquid discharge pipes (143); the liquid inlet pipe (142) is arranged on a first surface of the box body (141), and each of the liquid discharge pipes (143) is arranged on a second surface of the box body (141).

6. An ink path system according to claim 5, characterized in that: The ink supply pipeline (10) comprises a first filter (15), and the first filter (15) is connected to the ink supply box (13) and the diverter (14) respectively through pipelines.

7. An ink path system according to claim 6, characterized in that: The inkjet pipeline (20) comprises a second filter (23), and the second filter (23) is connected to the diverter (14) and the negative pressure ink bag (21) respectively through pipelines.

8. An inkjet printer, characterized in that: It comprises the ink path system according to any one of claims 1 to 7.

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