Ink bottle with two groups of inorganic ink for multi-jet adapter

Abstract

The utility model discloses an inorganic ink two groups circulation ink bottle of adapting to multiple spray head belongs to printing equipment technical field. To solve the problem of uneven pressure, ink easy to deposit and inconvenient maintenance of multiple spray head ink supply system in the prior art, the ink bottle includes a cavity (1), and the cavity (1) is separated into first space (11) and second space (12) through the partition (4) inside. The cavity (1) bottom corresponds each space and is provided with a list of water outlet (5), and each space is communicated with an independent circulation part (7). The utility model discloses through the design of partition and independent circulation, has guaranteed the equal of each spray head ink supply pressure under the same space, has effectively prevented inorganic ink deposit, has guaranteed the stability of printing quality. In addition, the device can also be provided with independent drainage part (8), convenient to empty ink completely, makes maintenance more convenient.

Description

Technical Field

[0001] This utility model relates to the field of printing equipment technology, and in particular to an inorganic ink two-group circulating ink bottle adapted to multiple printheads. Background Technology

[0002] In industrial inkjet printing, especially in applications using inorganic inks (such as ceramics and glass printing), multi-head parallel printing arrays are typically used to improve printing efficiency. Inorganic inks, due to their large pigment particles, are prone to sedimentation, thus requiring continuous circulation to maintain ink uniformity.

[0003] Existing multi-head ink supply systems typically use a large ink container, with different ink heads supplied through multiple lines. However, this structure has the following drawbacks:

[0004] Uneven pressure: When ink is split from a large container to multiple printheads, slight differences in the length, bend angle, and fluid resistance of each tube can lead to inconsistent ink pressure reaching each printhead. This pressure unevenness directly affects the amount of ink ejected from the printhead, resulting in defects such as color differences and banding in the printed image, severely impacting print quality.

[0005] Low circulation efficiency: In large single-chamber ink bottles, ink circulation can easily create dead zones, and ink in some areas cannot flow effectively, leading to pigment sedimentation and clogging of the printhead.

[0006] Inconvenient maintenance: When cleaning or replacing ink is required, the complex structure of the large ink supply system makes it difficult to completely drain the ink, which can easily lead to ink waste and cross-contamination between different inks.

[0007] Therefore, how to design an ink supply device that is simple in structure, can provide equal ink supply pressure to multiple printheads, and is easy to maintain is a technical problem that urgently needs to be solved in this field. Utility Model Content

[0008] Technical problem to be solved: The purpose of this utility model is to overcome the shortcomings of the existing technology and provide an inorganic ink two-group circulating ink bottle that is compatible with multiple printheads, aiming to solve the problems of uneven pressure of each printhead, easy ink sedimentation, and inconvenient maintenance in multi-printhead ink supply systems.

[0009] Technical solution: To achieve the above objectives, the present invention adopts the following technical solution:

[0010] An inorganic ink bottle with two-stage circulation for multiple printheads includes: a cavity with a cavity cover at the top and a pressurization port on the cavity cover; a partition plate disposed inside the cavity, dividing the cavity into a first space and a second space; a plurality of ink outlets disposed at the bottom of the cavity, wherein one row of ink outlets is located directly below the first space and the other row of ink outlets is located directly below the second space, and each ink outlet is provided with a connector for connecting an ink printhead; and two circulation sections, one circulation section connecting to the first space and the other circulation section connecting to the second space, each circulation section including two bent connectors disposed on the side of the cavity and circulation pipes at both ends connected to the two bent connectors respectively.

[0011] As a further optimization of this utility model: the partition divides the internal space of the cavity into a first space and a second space; the distance between the rows of ink outlets located directly below the first space is equal, and the distance between the rows of ink outlets located directly below the second space is also equal. This symmetrical and equal layout, from a physical structure perspective, ensures that the path and resistance of the ink flowing to each outlet in its respective space are basically the same, which is the basis for achieving pressure balance.

[0012] As a further optimization of this utility model: the cavity cover is installed on the cavity by a threaded connection; the threaded connection path is located on the left and right sides of the cavity and on the top of the partition. This connection method not only seals the outer periphery of the cavity, but also tightly fixes the cavity cover to the top of the partition, enhancing the strength and airtightness of the overall structure, and ensuring that the two independent spaces will not deform or leak under pressure.

[0013] As a further optimization of this utility model, it also includes two drainage sections: one drainage section is disposed on the side wall of the cavity connecting the first space, and the other drainage section is disposed on the side wall of the cavity connecting the second space. These two independent drainage sections allow the first space and the second space to be emptied independently and completely, facilitating cleaning and maintenance.

[0014] As a further optimization of this utility model, the two drainage sections are positioned opposite to the two circulation sections on the side wall of the cavity. This layout avoids overly concentrated pipe interfaces, facilitates operation, and also makes the flow field distribution inside the cavity more reasonable.

[0015] As a further optimization of this utility model: the drainage section includes a drainage hole disposed on the cavity and a drainage pipe disposed on the drainage hole. This is a specific structural implementation of the drainage section, which is simple and reliable.

[0016] As a further optimization of this utility model: the inner bottom of the cavity is recessed downwards near the drain hole, forming a drain channel leading to the drain hole. This drain channel utilizes gravity to guide the residual ink at the bottom of the cavity to flow naturally to the drain hole, achieving more thorough emptying and avoiding ink waste and residue.

[0017] Beneficial effects: Compared with the prior art, the present invention has the following beneficial effects:

[0018] Balanced pressure and stable printing: The chamber is divided into two independent spaces by a partition, each with its own circulation section and a row of ink outlets. This "zonal management" design ensures that the pressure is equal throughout the same space, thereby guaranteeing that all printheads connected to the same space receive completely consistent ink supply pressure, fundamentally solving the print quality problem caused by uneven pressure.

[0019] Sufficient circulation prevents sedimentation: The independent circulation section provides continuous ink circulation power to each space, effectively agitating the ink, preventing inorganic pigment particles from settling, ensuring long-term stability of ink properties, and reducing the risk of printhead clogging.

[0020] Sturdy structure and good sealing performance: The threaded connection design between the cavity cover and the top of the cavity and partition provides excellent structural stability and airtightness, ensuring safety and reliability under pressurized working conditions.

[0021] Thorough evacuation and convenient maintenance: The specially designed drainage section, especially the drainage channel with guiding function, ensures that the ink can be completely emptied when changing ink or cleaning the equipment. The operation is simple and reduces ink waste and the possibility of cross-contamination. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a specific embodiment of the present invention.

[0023] Figure 2 This is a schematic diagram of the overall structure of a specific embodiment of the present invention.

[0024] Figure 3 This is an exploded view of a specific embodiment of the present invention.

[0025] Figure 4 This is a cross-sectional view of a specific embodiment of the present invention.

[0026] Figure 5 This is a cross-sectional view of a specific embodiment of the present invention.

[0027] In the diagram: 1-Cavity, 2-Cavity cover, 3-Pressure port, 4-Baffle, 5-Outlet, 6-Connector, 7-Circulation section, 8-Drainage section, 9-Drainage channel, 11-First space, 12-Second space, 71-Bent joint, 72-Circulation pipe, 81-Drainage hole, 82-Drainage pipe. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description of the inorganic ink bottle with two sets of circulating ink cartridges adapted to multiple printheads is provided in conjunction with the accompanying drawings and embodiments. 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.

[0029] 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.

[0030] 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.

[0031] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Please see Figures 1 to 5 This utility model provides an inorganic ink bottle with two sets of circulating ink that is compatible with multiple printheads. Its core structure includes a cavity (1), a cavity cover (2), a partition (4), several ink outlets (5), and two circulation parts (7).

[0033] The cavity (1) is the main container for the ink and can be made of corrosion-resistant materials (such as stainless steel or specific engineering plastics). A cavity cover (2) is detachably installed on the top of the cavity (1) via a threaded connection. To enhance overall sealing and structural strength, threads are not only provided on the left and right outer walls of the cavity (1), but also in the middle of the cavity (1), above the top of the partition (4). Figure 3 (As shown). In this way, when the cavity cover (2) is tightened, it can simultaneously press the outer edge of the cavity (1) and the upper edge of the partition (4), ensuring that the entire device has excellent airtightness under pressure. A pressure port (3) is provided on the cavity cover (2) for connecting a pressure device such as an air pump to apply stable air pressure to the inside of the cavity (1) to provide output power for the ink.

[0034] Inside the cavity (1), a partition (4) divides the interior along its length. In this embodiment, the partition (4) is located in the center of the cavity (1), completely and equally dividing the interior space into two independent spaces: a first space (11) and a second space (12). These two spaces are physically disconnected.

[0035] At the bottom of the cavity (1), two rows of water outlets (5) are correspondingly provided. Figure 1 and Figure 3 As shown, one row of outlets (5) is neatly arranged directly below the first space (11), and another row is arranged directly below the second space (12). The distance between each outlet (5) in the same row is equal. Each outlet (5) is equipped with a connector (6) for connecting the ink tube to deliver ink to the external print head (not shown). Due to the symmetrical structure, the path length and resistance of the ink flowing from the first space (11) to any outlet (5) below it are almost identical, and the same applies to the second space (12), which provides a physical basis for equal pressure.

[0036] To maintain ink uniformity and help establish a stable pressure environment, two independent circulation sections (7) are provided on the side of the device. One circulation section (7) serves the first space (11), and the other serves the second space (12). Each circulation section (7) consists of two bent joints (71) and a circulation pipe (72) located on the side wall of the cavity (1). The two bent joints (71) are connected to the upper and lower parts of the corresponding spaces, respectively. During operation, an external circulation pump (not shown in the figure) draws ink out from one bent joint (71) through the circulation pipe (72) and pumps it back from the other bent joint (71), thereby forming independent and continuous ink circulation in the first space (11) and the second space (12), respectively.

[0037] For ease of maintenance, this embodiment also includes two drainage sections (8). Figure 2 As shown, one drainage section (8) is located on the side wall communicating with the first space (11), and the other is located on the side wall communicating with the second space (12). In this embodiment, the drainage section (8) is located on the opposite side wall to the circulation section (7) to facilitate pipeline layout. Each drainage section (8) consists of a drainage hole (81) opened on the wall of the cavity (1) and a drainage pipe (82) installed thereon. More preferably, as Figure 5 As shown, at the bottom of the cavity (1), near the drain hole (81), a downward-sloping section is designed to form a drain channel (9). When the ink needs to be drained, the valve of the drain pipe (82) is opened, and the ink in the cavity (1) will flow along the drain channel (9) to the drain hole (81) at the lowest point under the action of gravity, so that it can be drained very thoroughly.

[0038] During operation, inorganic ink is injected into the first space (11) and the second space (12) respectively, and the cavity cover (2) is closed and tightened. The two circulation pumps are started to circulate the ink in the two spaces. A set air pressure is applied to the cavity (1) through the pressurization port (3), and this air pressure acts evenly on the liquid surface in the two spaces. Under stable air pressure and continuous circulation, a homogeneous and isobaric environment is formed inside each space, so the printheads connected to each water outlet (5) at the bottom can obtain stable and equal ink supply pressure, thereby ensuring high-quality printing output.

[0039] 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. A two-stage circulating ink bottle for inorganic inks adapted to multiple printheads, characterized in that, include: A cavity (1) is provided with a cavity cover (2) on the top of the cavity (1), and a pressure port (3) is provided on the cavity cover (2); A partition (4) is disposed inside the cavity (1) and divides the interior of the cavity (1) into a first space (11) and a second space (12); A plurality of water outlets (5) are provided at the bottom of the cavity (1), wherein one row of water outlets (5) is located directly below the first space (11), and another row of water outlets (5) is located directly below the second space (12). Each water outlet (5) is provided with a connector (6) for connecting an ink nozzle. Two circulation sections (7), one circulation section (7) is connected to the first space (11), and the other circulation section (7) is connected to the second space (12). The circulation section (7) includes two bent joints (71) disposed on the side of the cavity (1) and circulation pipes (72) with both ends connected to the two bent joints (71) respectively.

2. The inorganic ink bottle with two sets of circulating ink units adapted to multiple printheads as described in claim 1, characterized in that, The partition (4) divides the internal space of the cavity (1) into the first space (11) and the second space (12); the distance between the row of water outlets (5) located directly below the first space (11) is equal, and the distance between the row of water outlets (5) located directly below the second space (12) is equal.

3. The inorganic ink bottle with two sets of circulating ink units adapted to multiple printheads as described in claim 1, characterized in that, The cavity cover (2) is provided on the cavity (1) by means of a threaded connection; the path of the threaded connection is provided on the left and right sides of the cavity (1) and on the top of the partition (4).

4. The inorganic ink bottle with two sets of circulating ink units adapted to multiple printheads as described in claim 1, characterized in that, It also includes two drainage sections (8), one of which is disposed on the side wall of the cavity (1) that connects to the first space (11), and the other of which is disposed on the side wall of the cavity (1) that connects to the second space (12).

5. The inorganic ink bottle with two sets of circulating ink units adapted to multiple printheads as described in claim 4, characterized in that, The two drainage sections (8) are positioned opposite to the two circulation sections (7) on the side wall of the cavity (1).

6. The inorganic ink bottle with two sets of circulating ink units adapted to multiple printheads according to claim 4, characterized in that, The drainage section (8) includes a drainage hole (81) disposed on the cavity (1) and a drainage pipe (82) disposed on the drainage hole (81).

7. The inorganic ink bottle with two sets of circulating ink units adapted to multiple printheads as described in claim 6, characterized in that, The inner bottom of the cavity (1) is recessed downward near the drain hole (81) to form a drain channel (9) leading to the drain hole (81).

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