Ink bottle with secondary circulation function of inorganic ink with constant pressure function

Abstract

The utility model discloses an inorganic ink secondary circulation ink bottle with constant pressure function, which is used for providing stable pressure and equal flow for ink supply of inkjet or coating device. It comprises: a cavity, which is internally provided with an ink storage space for storing inorganic pigment ink; a micro pump, which is installed on the top of the cavity to pressurize the ink storage space to provide stable source pressure; a circulation part, which is arranged on the side wall of the cavity and comprises a first bending head (high position), a second bending head (low position) and a circulation pipeline connecting the two, and the vertical interval is less than 2 / 3 of the height of the ink storage space, so as to promote internal circulation of the ink, prevent sedimentation and balance pressure distribution; and multiple manual ball valves, which are arranged on the bottom surface of the cavity along the same straight line at equal intervals and serve as ink outlets. The top pressure provides a unified pressure source, the side circulation realizes dynamic equalization of pressure and prevents sedimentation, and the bottom equal-interval ink outlets ensure consistent physical conditions, so that the multiple-outlet pressure is constant and the flow is uniform, thereby solving the industry problem of uneven ink supply of multiple stations.

Description

Technical Field

[0001] This utility model relates to the field of ink supply device technology, and in particular to an inorganic ink bottle with constant pressure function and two-stage circulating ink. Background Technology

[0002] In fields such as inkjet printing, 3D printing, and precision coating, ink supply systems are required to continuously and stably supply ink to the printhead or nozzle. For inks containing pigment particles (especially dense inorganic pigments), prolonged standing can cause pigment sedimentation, leading to uneven ink concentration, nozzle clogging, and affecting product quality. Therefore, some high-end ink supply systems incorporate circulation systems to maintain ink uniformity.

[0003] However, existing ink supply systems, especially those requiring simultaneous ink supply from the same ink bottle to multiple stations or printheads, generally face a technical challenge: ensuring completely consistent pressure and flow rate at each ink outlet. This pressure inconsistency can be caused by various factors, such as static pressure differences within the ink bottle, variations in pipeline resistance, or fluctuations in the pressure source. Inconsistent pressure leads to deviations in ink output and coating thickness at each station, severely impacting the quality and consistency of the final product.

[0004] Therefore, how to design a structure that can both prevent ink sedimentation and ensure constant pressure and equal output from multiple ink outlets is a technical problem that urgently needs to be solved in this field. Utility Model Content

[0005] The purpose of this invention is to overcome the above-mentioned defects of the prior art and provide an inorganic ink bottle with constant pressure function that has a clever structural design and can achieve constant and equal pressure at multiple ink outlets through the synergistic effect of top pressurization, side circulation and bottom uniform ink distribution.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An inorganic ink bottle with constant pressure function and two-stage circulation includes: a cavity with an ink storage space for storing ink; a micro pump disposed on the cavity for pressurizing the ink storage space; a circulation unit disposed on the side of the cavity and communicating with the ink storage space; and a plurality of manual ball valves disposed on the lower part of the cavity, the plurality of manual ball valves communicating with the ink storage space and being equidistant from each other.

[0008] As a preferred embodiment, the circulation section includes: a first bend head disposed on the cavity; a second bend head disposed on the cavity; and a circulation pipe, the two ends of which are respectively connected to the first bend head and the second bend head.

[0009] As a preferred embodiment, the maximum distance between the first bending head and the second bending head is two-thirds of the height of the ink storage space.

[0010] As a preferred embodiment, the first bending head is positioned above the second bending head.

[0011] As a preferred embodiment, the micropump is disposed on the top surface of the cavity.

[0012] As a preferred embodiment, the circulation section is disposed on the same side wall of the cavity.

[0013] As a preferred embodiment, the plurality of manual ball valves are arranged along the same straight line on the bottom surface of the cavity.

[0014] The beneficial effects of this utility model are as follows:

[0015] Constant and uniform pressure: A micro-pump at the top of the chamber pressurizes the gas in the ink storage space, providing a stable and uniform source pressure for the ink. Meanwhile, multiple manual ball valves at the bottom are positioned on the same horizontal plane and equidistantly distributed, ensuring consistent base static pressure at each ink outlet.

[0016] Dynamic pressure equalization and anti-sedimentation: The side circulation section allows the ink to flow continuously within the chamber. This flow not only effectively prevents the sedimentation of inorganic pigments, but more importantly, it plays a dynamic role in "homogenization" and "pressure equalization," breaking down any pressure gradients that may exist within the liquid and ensuring a uniform pressure distribution throughout the ink storage space. This, in turn, makes the pressure at each manual ball valve outlet nearly identical.

[0017] Structural optimization yields significant results: By limiting the distance between the first and second bends to within two-thirds of the ink storage space height and placing the first bend on top of the second bend, the circulation area is concentrated in the main ink storage area, resulting in high circulation efficiency and excellent pressure equalization. The overall structure is compact and rational, and its synergistic effect solves the industry-wide problem of equal pressure distribution across multiple outlets. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an inorganic ink bottle with constant pressure function in an embodiment of this utility model.

[0019] Figure 2 This is an exploded view of an inorganic ink bottle with constant pressure function in an embodiment of this utility model.

[0020] Figure 3 This is a cross-sectional view of an inorganic ink bottle with constant pressure function in an embodiment of this utility model. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description of the inorganic ink two-stage circulation bottle with constant pressure function, in conjunction with the accompanying drawings and embodiments, is provided. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit its scope.

[0022] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "center," "longitudinal," "lateral," "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art will be able to understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The present invention will now be described in detail with reference to the accompanying drawings.

[0025] like Figures 1 to 3 As shown, this utility model provides an inorganic ink two-stage circulation ink bottle with constant pressure function, which mainly includes a cavity (1), a micro pump (2), a circulation part (3) and multiple manual ball valves (4).

[0026] The cavity (1) is the main body of this device and is usually made of corrosion-resistant materials (such as PP, stainless steel, etc.). Inside it is an ink storage space (11) for storing inorganic ink. The cavity (1) can be equipped with an openable cover for easy ink addition and internal cleaning. This is a conventional technology and will not be described in detail.

[0027] A micropump (2) is disposed on the cavity (1). In this embodiment, the micropump (2) is preferably disposed on the top surface of the cavity (1). The outlet of the micropump (2) is connected to the gas space at the top of the ink storage space (11). Its function is to pressurize the gas in the ink storage space (11), thereby applying a continuous and stable pressure to the ink liquid below. The micropump (2) is installed using conventional technology, for example, it can be fixed to the top cover of the cavity (1) with bolts and an airtight seal is provided.

[0028] The circulation section (3) is located on the side of the cavity (1) to realize the internal secondary circulation of ink. In this embodiment, the circulation section (3) is preferably located on the same side wall of the cavity (1) to make the structure more compact. The circulation section (3) specifically includes a first bend head (31), a second bend head (32), and a circulation pipe (33) connecting the two. The first bend head (31) and the second bend head (32) both penetrate the side wall of the cavity (1) and communicate with the ink storage space (11). Their installation can be achieved by using a mature threaded connection and a sealing ring to ensure the reliability and sealing of the connection. In the core design of this solution, the first bend head (31) is located above the second bend head (32). Furthermore, the maximum vertical distance between the center of the first bend head (31) and the center of the second bend head (32) is limited to two-thirds of the total height of the ink storage space (11). This design ensures that the ink intake port (second bend 32) and the ink return port (first bend 31) of the circulation path are both located in the main ink storage area, guaranteeing effective circulation at different liquid levels, thereby achieving the best pressure equalization and anti-settling effect.

[0029] Multiple manual ball valves (4) are located at the bottom of the cavity (1) as the final ink outlet. In this embodiment, the multiple manual ball valves (4) are arranged along the same straight line on the bottom surface of the cavity (1). The outlets of all manual ball valves (4) are connected to the bottom of the ink storage space (11). The key is that the distance between any two adjacent manual ball valves (4) is equal. This symmetrical and evenly distributed design ensures that the initial physical conditions (such as static pressure and flow channel structure) of each valve at the ink outlet point are highly consistent, which is an important structural basis for achieving pressure equality.

[0030] Working principle: When the device is working, the micro pump (2) starts and pressurizes the air at the top of the ink storage space (11), for example, to maintain a constant positive pressure of 0.1 bar. At the same time, the circulation section (3) starts working, and the ink is drawn out from the lower second bend (32) and flows back to the ink storage space (11) through the circulation pipe (33) and the higher first bend (31), forming a continuous, top-down internal circulation flow field in the cavity (1).

[0031] Ultimately, under the combined effect of top air pressure, side circulating flow field, and bottom uniform distribution structure, the ink pressure in the ink storage space (11) is highly homogenized. At this time, opening any one or more manual ball valves (4) will result in ink flowing from each valve having almost identical pressure and flow rate, thus meeting the requirements for high-precision ink supply.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An inorganic ink bottle with constant pressure function and two-stage circulating ink cycle, characterized in that, include: The cavity (1) is provided with an ink storage space (11) for storing ink; A micro pump (2) is disposed on the cavity (1) for pressurizing the ink storage space (11); The circulation section (3) is located on the side of the cavity (1) and communicates with the ink storage space (11); And multiple manual ball valves (4) are located below the cavity (1), the multiple manual ball valves (4) are connected to the ink storage space (11), and the distance between the multiple manual ball valves (4) is equal.

2. The inorganic ink secondary circulation ink bottle having a constant pressure function according to claim 1, characterized by, The circulation section (3) includes: The first bending head (31) is disposed on the cavity (1); A second bend (32) is disposed on the cavity (1); and a circulation pipe (33) is provided at both ends of the circulation pipe (33) to the first bend (31) and the second bend (32) respectively.

3. The inorganic ink secondary circulation ink bottle having a constant pressure function according to claim 2, characterized by, The maximum distance between the first bending head (31) and the second bending head (32) is two-thirds of the height of the ink storage space (11).

4. The inorganic ink secondary circulation ink bottle having a constant pressure function according to claim 1, characterized by, The micro pump (2) is disposed on the top surface of the cavity (1).

5. The inorganic ink secondary circulation ink bottle having a constant pressure function according to claim 1, characterized by, The circulation section (3) is located on the same side wall of the cavity (1).

6. The inorganic ink secondary circulation ink bottle having a constant pressure function according to claim 1, characterized by, The plurality of manual ball valves (4) are arranged along the same straight line on the bottom surface of the cavity (1).

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