Ink backflow system in ink-jet printer

Abstract

The utility model relates to an ink return system in an ink-jet printer. The ink return system comprises an ink supply box, an ink distribution box, an ink supply pipeline and an ink return pipeline. The ink supply box is connected with the ink distribution box through an ink supply pipeline, and the ink supply pipeline is provided with an ink supply pump. The ink distribution box is connected with the ink supply box through an ink return pipeline, the ink return pipeline is provided with an electromagnetic valve capable of controlling the ink return pipeline to be connected and disconnected, and when the ink return pipeline is connected, ink in the ink distribution box can flow back into the ink supply cylinder. The ink distributing box is used for being connected with a nozzle in the printer. According to the utility model, the ink return pipeline is additionally arranged between the ink distribution box and the ink supply box, and the electromagnetic valve is arranged on the ink return pipeline, so that after the ink-jet printer is powered off and stops being used, the electromagnetic valve is in a conducting state, ink in the ink distribution box can flow back to the ink supply box, and the ink in the ink supply box is ensured not to overflow from a nozzle.

Description

TECHNICAL FIELD

[0001] The utility model relates to inkjet printing field especially relates to a ink backflow system in inkjet printer. BACKGROUND

[0002] The inkjet printer is to liquid ink through the nozzle become small particle and spray to the printing paper to realize the printing, the ink supply box is used to provide the ink to the ink distribution box, the ink distribution box is connected with a plurality of nozzles through the pipeline, the ink distribution box supplies the ink to a plurality of nozzles through the pipeline to realize the printing of figure and text.If the inkjet printer stops using after power failure, there are some working conditions (for example when carrying the inkjet printer), the ink in the ink distribution box is vibrated, and the ink in the ink distribution box is easy to leak from the nozzle, causing pollution. SUMMARY

[0003] (I) technical problem to be solved

[0004] The utility model provides a ink backflow system in inkjet printer, it aims at solving the problem that the ink in the ink distribution box is easy to leak from the nozzle in the prior art after the inkjet printer stops using after power failure.

[0005] (II) technical scheme

[0006] In order to solve the above problem, the utility model provides a ink backflow system in inkjet printer, the ink backflow system includes: ink supply box, ink distribution box, ink supply pipeline and ink return pipeline;

[0007] The ink supply box is connected with the ink distribution box through the ink supply pipeline, and a ink supply pump is arranged on the ink supply pipeline;

[0008] The ink distribution box is connected with the ink supply box through the ink return pipeline, and an electromagnetic valve capable of controlling the on-off of the ink return pipeline is arranged on the ink return pipeline, when the ink return pipeline is conducted, the ink in the ink distribution box can flow back to the ink supply cylinder;The ink distribution box is used to be connected with the nozzle in the printer.

[0009] Preferably, a one-way valve is arranged on the ink supply pipeline, and the ink supply pump can pump the ink in the ink supply box into the ink distribution box.

[0010] Preferably, the electromagnetic valve is a normally closed electromagnetic valve, and the normally closed electromagnetic valve is connected with the power supply in the printer.

[0011] Preferably, the gravitational potential energy of the ink in the ink distribution box is greater than the gravitational potential energy of the ink in the ink supply barrel;

[0012] When the ink return pipeline is conducted, the ink in the ink distribution box can move to the ink supply barrel under the action of gravity.

[0013] Preferably, the bottom of the ink distribution box is provided with an ink return opening for communicating with the ink return pipeline.

[0014] Preferably, the ink distribution box is connected with a plurality of nozzles through pipelines.

[0015] (Three) beneficial effects

[0016] The utility model discloses a ink return pipeline is additionally arranged between the ink distribution box and the ink supply box, and the solenoid valve is arranged on the ink return pipeline, so that after the inkjet printer is powered off and stops using, the solenoid valve is in the on state, and the ink in the ink distribution box can flow back to the ink supply box at this time, which ensures that the ink in the ink supply box does not leak from the nozzle. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the whole mechanism schematic diagram of the utility model ink return system.

[0018]

Explanation of reference signs

[0019] 1: ink supply box;2: ink distribution box;21: nozzle;3: ink supply pipeline;31: ink supply pump;32: check valve;4: ink return pipeline;41: solenoid valve. DETAILED DESCRIPTION

[0020] In order to better explain the utility model, so as to facilitate understanding, the utility model is described in detail below by specific implementation mode, combined with the drawings.

[0021] It should be noted that all directionality indications (such as up, down, left, right, front, back, etc.) in the utility model embodiment are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indications also change accordingly.

[0022] In addition, in the utility model, the description such as "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature. In the description of the utility model, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0023] In the utility model, unless another definite provision and limitation, the terms "connect", "fix" and the like should be understood broadly, for example, "fix" can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be the communication of two elements or the interaction of two elements, unless another definite limitation.For the ordinary skilled person in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0024] The utility model provides a kind of ink backflow system in ink-jet printer, ink backflow system includes: ink supply box 1, ink distribution box 2, ink supply pipeline 3 and ink return pipeline 4.Ink supply box 1 is connected with ink distribution box 2 by ink supply pipeline 3, and ink supply pump 31 is provided on ink supply pipeline 3.Ink distribution box 2 is connected with ink supply box 1 by ink return pipeline 4, and electromagnetic valve 41 capable of controlling the on-off of ink return pipeline 4 is provided on ink return pipeline 4, when ink return pipeline 4 is conducted, the ink in ink distribution box 2 can backflow to ink supply cylinder;Ink distribution box 2 is used to connect with the nozzle 21 in printer.

[0025] The application adds a ink return pipeline 4 between ink distribution box 2 and ink supply box 1, and sets electromagnetic valve 41 on ink return pipeline 4, so that after ink-jet printer is powered off and stops using, electromagnetic valve 41 is in conducting state, at this time, the ink in ink distribution box 2 can backflow to ink supply box 1, and the ink in ink supply box 1 cannot leak from nozzle 21.In addition, since electromagnetic valve 41 is provided on ink return pipeline 4, it can be guaranteed that when ink-jet printer is in working state, electromagnetic valve 41 is in off state, and the ink in ink distribution box 2 cannot backflow to ink supply box 1, thereby not affecting the normal printing work of nozzle 21.

[0026] Further, one-way valve 32 is provided on ink supply pipeline 3, and ink supply pump 31 can pump the ink in ink supply box 1 into ink distribution box 2.The one-way valve 32 provided on ink supply pipeline 3 ensures that the ink in ink distribution box 2 cannot flow from ink supply pipeline 3 to ink supply box 1, and also does not affect the ink supply of ink supply box 1 to ink distribution box 2.

[0027] In the preferred embodiment, electromagnetic valve 41 is normally closed electromagnetic valve, and the normally closed electromagnetic valve is connected with the power supply in ink-jet printer.When ink-jet printer is powered off, the normally closed electromagnetic valve moves to normal closed position due to power loss, at this time, the normally closed electromagnetic valve is in off state, and ink return pipeline 4 is in off state.When ink-jet printer is powered on, the normally closed electromagnetic valve moves to normal open position due to power, at this time, the normally closed electromagnetic valve is in conducting state, and ink return pipeline 4 is also in conducting state.

[0028] In the above embodiment, the gravity potential energy of the ink in the ink distribution box 2 is greater than that of the ink in the ink supply barrel. When the ink return pipeline 4 is open, the ink in the ink distribution box 2 can move to the ink supply barrel under the action of gravity.

[0029] Finally, the bottom of the ink distribution box 2 is provided with an ink return opening for communicating with the ink return pipeline 4. By arranging the ink return opening at the bottom of the ink distribution box 2, it can be ensured that the ink in the ink distribution box 2 can all return to the ink supply box 1.

[0030] It should be understood that the above description of the specific embodiments of the present application is only for the purpose of illustrating the technical route and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, but the present application is not limited to the above specific embodiments. Any changes or modifications made within the scope of the claims of the present application should be covered within the scope of protection of the present application.

Claims

1. An ink recirculation system in an inkjet printer, characterized by, The ink return system comprises an ink supply box (1), an ink distribution box (2), an ink supply pipeline (3) and an ink return pipeline (4); The ink supply box (1) is connected with the ink distribution box (2) through the ink supply pipeline (3), and a ink supply pump (31) is arranged on the ink supply pipeline (3); The ink distribution box (2) is connected with the ink supply box (1) through the ink return pipeline (4), and an electromagnetic valve (41) capable of controlling the on-off of the ink return pipeline (4) is arranged on the ink return pipeline (4), when the ink return pipeline (4) is turned on, the ink in the ink distribution box (2) can return to the ink supply cylinder; the ink distribution box (2) is used for being connected with a nozzle (21) in a printer.

2. The ink recirculation system in an inkjet printer according to claim 1, wherein A one-way valve (32) is arranged on the ink supply pipeline (3), and the ink supply pump (31) can suck the ink in the ink supply box (1) into the ink distribution box (2).

3. The ink recirculation system in an inkjet printer according to claim 2, wherein The electromagnetic valve (41) is a normally closed electromagnetic valve, and the normally closed electromagnetic valve is connected with a power supply in a printer.

4. The ink recirculation system in an inkjet printer according to any one of claims 1 to 3, wherein The gravity potential energy of the ink in the ink distribution box (2) is greater than that of the ink in the ink supply barrel; When the ink return pipeline (4) is turned on, the ink in the ink distribution box (2) can move to the ink supply barrel under the action of gravity.

5. The ink recirculation system in an inkjet printer of claim 4, wherein, The bottom of the ink distribution box (2) is provided with an ink return port for communicating with the ink return pipeline (4).

6. The ink recirculation system in an inkjet printer according to any one of claims 1 to 3, wherein The ink distribution box (2) is connected with a plurality of nozzles (21) through a pipeline.

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