A gas storage tank and an industrial digital machine containing the same
By setting up negative and positive pressure sealed chambers inside the gas storage tank and adopting a cross-distributed square structure, the problems of low pressure measurement sensitivity and low integration of the gas storage tank are solved, realizing rapid pressure response and efficient industrial digital machine operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN GRANDA PRECISION MASCH CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-06-05
AI Technical Summary
The low sensitivity and integration of the gas tank pressure measurement in existing industrial digital printers result in reduced sensitivity of gas and ink pressure measurement and low space utilization.
Design a gas storage tank with internal negative and positive pressure sealed chambers. The gas pressure is monitored and adjusted in real time by a pressure measuring device. A square structure is adopted to improve integration, and the sealed chambers are distributed crosswise within the gas tank body to enhance the gas pressure response sensitivity.
It improves the pressure measurement sensitivity of the gas tank and the integration of the industrial digital printer, shortens the gas pipe length, reduces the slow gas pressure response, ensures rapid response to gas pressure changes, and improves printing quality and working speed.
Smart Images

Figure CN224327003U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of industrial digital machine technology, and in particular to a gas storage tank and an industrial digital machine containing the same. Background Technology
[0002] Industrial digital printers, also known as industrial-grade digital printers or industrial inkjet printers, are high-end devices that integrate digital control technology, precision mechanics, and advanced printing technology. They are mainly used for high-precision digital printing on various industrial materials.
[0003] The air tank is primarily used to store compressed air, stabilize the pressure in the air circuit, and provide continuous power support for the pneumatic system. In industrial digital printers, firstly, the air tank provides power to pneumatic components in the ink circuit system through the air circuit system, such as driving the ink supply pump or controlling ink circuit valves; secondly, the air tank is connected to the ink circuit system through a pressure regulator to regulate the pressure in the ink circuit, ensuring a stable ink supply and ejection, and improving print quality.
[0004] Most air tanks used in existing industrial digital printers are single, cylindrical containers that serve as the air storage chamber. These types of air tanks often need to be located far from the ink cartridges, resulting in low integration, inefficient space utilization, and significant limitations in highly integrated air circuit applications. Furthermore, they can easily lead to reduced pressure measurement sensitivity in the air and ink circuits.
[0005] Therefore, there is an urgent need to design a gas storage tank that can improve pressure measurement sensitivity and enhance the integration of industrial digital devices. Utility Model Content
[0006] In view of this, the present invention provides a gas storage tank and an industrial digital machine containing the same, to solve the problems of low pressure measurement sensitivity and low integration of gas storage tanks in existing industrial digital machines.
[0007] To solve the above-mentioned technical problems, one technical solution adopted by this utility model is to provide an industrial digital machine for a gas storage tank. The gas storage tank includes a gas tank body. The gas tank body has at least one first sealing cavity and at least one second sealing cavity inside. The first sealing cavity and the second sealing cavity are adjacent. The air pressure in the first sealing cavity is less than the air pressure of the outside air, and the air pressure in the second sealing cavity is greater than the air pressure of the outside air.
[0008] As one embodiment of the present invention, there are two first sealing cavities, located on the left side of the gas tank body, and two second sealing cavities, located on the right side of the gas tank body.
[0009] In one embodiment of this utility model, there are two first sealing cavities and two second sealing cavities, with the two first sealing cavities and the two second sealing cavities interspersed inside the gas tank body.
[0010] As an embodiment of the present invention, the gas storage tank further includes a first pressure measuring device and a second pressure measuring device. The first pressure measuring device is connected to the side wall of the first sealing cavity and is used to detect the negative pressure value of the first sealing cavity. The second pressure measuring device is connected to the side wall of the second sealing cavity and is used to detect the positive pressure value of the second sealing cavity.
[0011] As an embodiment of this utility model, the gas storage tank further includes a first pressure inlet device and a first pressure relief device. Both the first pressure inlet device and the first pressure relief device are connected to the side wall of the first sealing cavity. When the negative pressure value in the first sealing cavity is greater than the preset negative pressure value, gas is discharged through the first pressure inlet device; when the negative pressure value in the first sealing cavity is less than the preset negative pressure value, gas is introduced through the first pressure relief device.
[0012] As an embodiment of the present invention, the gas storage tank further includes a second pressure inlet device and a second pressure relief device. Both the second pressure inlet device and the second pressure relief device are connected to the side wall of the second sealing cavity. When the positive pressure value in the second sealing cavity is less than the preset positive pressure value, gas is introduced through the first pressure inlet device; when the positive pressure value in the second sealing cavity is greater than the preset positive pressure value, gas is discharged through the second pressure relief device.
[0013] As an embodiment of this utility model, both the bottom wall of the first sealing cavity and the bottom wall of the second sealing cavity are provided with ink discharge holes, which are used to discharge ink.
[0014] As one embodiment of this utility model, the gas tank body has a square structure.
[0015] In one embodiment of this utility model, both the first sealing cavity and the second sealing cavity are cuboid chambers.
[0016] To solve the above-mentioned technical problems, this utility model also provides an industrial digital machine, which includes an ink cartridge, a negative pressure buffer box, a positive pressure buffer box, and the aforementioned air tank. The negative pressure buffer box is connected to the ink cartridge and the first sealing cavity, respectively, and the positive pressure buffer box is connected to the ink cartridge and the second sealing cavity, respectively.
[0017] Compared with the prior art, the gas storage tank and the industrial digital machine containing it provided by this utility model embodiment have the following advantages:
[0018] The gas storage tank provided by this utility model stores both negative and positive pressure gas through a first and a second sealed cavity inside the tank body. This provides a stable negative and positive pressure gas source for industrial digital printers, enabling the gas storage tank to be integrated into the industrial digital printer. This shortens the length of the gas pipe between the gas storage tank and the ink cartridge, reducing the slow gas pressure response caused by the long gas pipe. As a result, the gas pressure change response is faster, and the detection of positive and negative pressure values is more sensitive. Therefore, the gas storage tank of this utility model improves the pressure measurement sensitivity and the integration of the industrial digital printer, solving the problem of low pressure measurement sensitivity and integration of gas storage tanks in existing industrial digital printers. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] in:
[0021] Figure 1 This diagram illustrates the application scenario structure of the gas storage tank provided in Embodiment 1 of this utility model.
[0022] Figure 2 A three-dimensional structural schematic diagram of the gas storage tank provided in Embodiment 1 of this utility model is shown;
[0023] Figure 3 This shows a schematic diagram of the gas storage tank provided in Embodiment 1 of the present invention from another angle;
[0024] Figure 4 It shows Figure 3 A cross-sectional view of the gas storage tank with AA as the reference plane.
[0025] Figure 5 A three-dimensional structural schematic diagram of the industrial digital machine provided in Embodiment 2 of this utility model is shown.
[0026] Explanation of reference numerals in the attached diagram:
[0027] 1. Gas storage tank; 2. Industrial digital machine;
[0028] 11. Gas tank body; 12. First pressure measuring device; 13. Second pressure measuring device; 14. First pressure inlet device;
[0029] 15. First pressure relief device; 16. Second pressure inlet device; 17. Second pressure relief device; 21. Ink cartridge; 22. Negative pressure buffer box; 23. Positive pressure buffer box;
[0030] 111. First sealing cavity; 112. Second sealing cavity; 211. First connector; 212. Second connector;
[0031] 1111, Ink discharge hole. Detailed Implementation
[0032] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.
[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
[0034] It is understood that the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that terms such as “comprising,” “including,” or “having” specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.
[0035] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element present. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only. In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of this invention and its embodiments and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this invention according to the specific circumstances.
[0036] Furthermore, the terms "set up," "equipped with," "connected," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.
[0037] Example 1
[0038] Please see Figure 1 As shown, the first embodiment of this utility model discloses a gas storage tank 1, which can be used, but is not limited to, in an industrial digital machine 2.
[0039] Please combine Figure 2 , Figure 3 and Figure 4 As shown, the gas storage tank 1 includes a gas tank body 11. The gas tank body 11 has at least one first sealing cavity 111 and at least one second sealing cavity 112 inside. The first sealing cavity 111 and the second sealing cavity 112 are adjacent to each other. The air pressure in the first sealing cavity 111 is less than the air pressure of the outside air, and the air pressure in the second sealing cavity 112 is greater than the air pressure of the outside air.
[0040] Specifically, the first sealed cavity 111 and the second sealed cavity 112 inside the gas tank body 11 simultaneously store negative pressure gas and positive pressure gas, providing a stable negative and positive pressure gas source for the industrial digital machine 2. This allows the gas tank 1 to be integrated into the industrial digital machine 2, shortening the length of the gas pipe between the gas tank 1 and the ink cartridge 21, reducing the slow gas pressure response caused by the long gas pipe, and thus making the response to gas pressure changes faster and the detection of positive and negative pressure values more sensitive. Therefore, the gas tank 1 of this utility model improves the pressure measurement sensitivity and the integration of the industrial digital machine 2, solving the problem of low pressure measurement sensitivity and integration of the gas tank 1 of the industrial digital machine 2 in the prior art.
[0041] Furthermore, the gas tank body 11 has a square structure.
[0042] Specifically, the gas tank body 11 has a cuboid structure, which facilitates the integration of the gas tank 1 with the industrial digital machine 2, while also providing stable support and fixation.
[0043] More specifically, the gas tank body 11 and the first sealing cavity 111 and the second sealing cavity 112 that are separated inside it are all integral structures.
[0044] Furthermore, both the first sealing cavity 111 and the second sealing cavity 112 are cuboid chambers.
[0045] Specifically, the interior of the gas tank body 11 with a cuboid structure is divided into a first sealing cavity 111 and a second sealing cavity 112. Both the first sealing cavity 111 and the second sealing cavity 112 are cuboid chambers, that is, the volume of the first sealing cavity 111 is the same as the volume of the second sealing cavity 112, which is conducive to the uniform distribution and stability of gas pressure.
[0046] Furthermore, there are two first sealing cavities 111 and two second sealing cavities 112.
[0047] Specifically, a first sealing cavity 111 and a second sealing cavity 112 constitute a first air path, and another first sealing cavity 111 and another second sealing cavity 112 constitute a second air path. The first air path and the second air path control two ink path systems respectively, which can improve the speed of controlling the ink path system, thereby improving the working speed and printing quality of the industrial digital printer 2.
[0048] In one embodiment, two first sealing cavities 111 are located on the left side of the gas tank body 11, and two second sealing cavities 112 are located on the right side of the gas tank body 11. This embodiment is used as an example for specific description in this utility model, but it should not be regarded as a limitation of this utility model.
[0049] Specifically, please refer to Figure 4 As shown, the two first sealing cavities 111 and the two second sealing cavities 112 together form a grid. It can be understood that the two cavities on the left are the first sealing cavities 111, and the two cavities on the right are the second sealing cavities 112.
[0050] It is understandable that the grid layout formed by the first sealing cavity 111 and the second sealing cavity 112 not only improves the utilization of space, but also helps to achieve pressure balance and stability inside the gas storage tank 1, and at the same time makes it easy for the gas storage tank 1 to be connected to external components.
[0051] In another embodiment, the two first sealing cavities 111 and the two second sealing cavities 112 are distributed intersectingly inside the gas tank body 11.
[0052] Specifically, the two first sealing cavities 111 and the two second sealing cavities 112 together form a grid. It can be understood that the two first sealing cavities 111 are intersecting and the two second sealing cavities 112 are intersecting.
[0053] Furthermore, the gas storage tank 1 also includes a first pressure measuring device 12 and a second pressure measuring device 13. The first pressure measuring device 12 is connected to the side wall of the first sealing cavity 111 and is used to detect the negative pressure value of the first sealing cavity 111. The second pressure measuring device 13 is connected to the side wall of the second sealing cavity 112 and is used to detect the positive pressure value of the second sealing cavity 112.
[0054] Specifically, the first pressure measuring device 12 detects the negative pressure value in the first sealing cavity 111, and the second pressure measuring device 13 detects the positive pressure value in the second sealing cavity 112, thereby realizing real-time monitoring of the pressure values in the first sealing cavity 111 and the second sealing cavity 112, ensuring that the pressure values in the first sealing cavity 111 and the second sealing cavity 112 are within the preset range, thus providing a stable air source for the industrial digital machine 2.
[0055] Furthermore, the gas storage tank 1 also includes a first pressure inlet device 14 and a first pressure relief device 15. Both the first pressure inlet device 14 and the first pressure relief device 15 are connected to the side wall of the first sealing cavity 111. When the negative pressure value in the first sealing cavity 111 is greater than the preset negative pressure value, gas is discharged through the first pressure inlet device 14; when the negative pressure value in the first sealing cavity 111 is less than the preset negative pressure value, gas is introduced through the first pressure relief device 15.
[0056] Specifically, a first pressure-infeeding device 14 and a first pressure-relief device 15 are connected to the side wall of the first sealing cavity 111. When the negative pressure value in the first sealing cavity 111 is greater than the preset negative pressure value, gas can be discharged through the first pressure-infeeding device 14 to reduce the negative pressure value in the first sealing cavity 111. When the negative pressure value in the first sealing cavity 111 is less than the preset negative pressure value, gas can be introduced through the first pressure-relief device 15 to increase the negative pressure value in the first sealing cavity 111.
[0057] More specifically, when the negative pressure value in the first sealing cavity 111 exceeds the preset range, the first pressure inlet device 14 and the first pressure relief device 15 can automatically adjust the internal air pressure to achieve real-time control and adjustment of the pressure value in the first sealing cavity 111 and maintain the air pressure in the first sealing cavity 111 stable.
[0058] Furthermore, the gas storage tank 1 also includes a second pressure inlet device 16 and a second pressure relief device 17. Both the second pressure inlet device 16 and the second pressure relief device 17 are connected to the side wall of the second sealing cavity 112. When the positive pressure value in the second sealing cavity 112 is less than the preset positive pressure value, gas is introduced through the first pressure inlet device 14; when the positive pressure value in the second sealing cavity 112 is greater than the preset positive pressure value, gas is discharged through the second pressure relief device 17.
[0059] Specifically, a second pressure-infeeding device 16 and a second pressure-relief device 17 are connected to the side wall of the second sealing cavity 112. When the positive pressure value in the second sealing cavity 112 is less than the preset positive pressure value, gas can be introduced through the second pressure-infeeding device 16 to increase the positive pressure value in the second sealing cavity 112. When the positive pressure value in the second sealing cavity 112 is greater than the preset positive pressure value, gas can be discharged through the second pressure-relief device 17 to reduce the positive pressure value in the second sealing cavity 112.
[0060] More specifically, when the negative pressure value in the second sealing cavity 112 exceeds the preset range, the second pressure inlet device 16 and the second pressure relief device 17 can automatically adjust the internal air pressure to achieve real-time control and adjustment of the pressure value in the second sealing cavity 112 and maintain the air pressure in the second sealing cavity 112 stable.
[0061] More specifically, in this embodiment of the invention, the gas introduced is compressed air.
[0062] Furthermore, both the bottom wall of the first sealing cavity 111 and the bottom wall of the second sealing cavity 112 are provided with ink discharge holes 1111, which are used to discharge ink.
[0063] Specifically, the ink discharge hole 1111 is used to discharge the ink that enters the first sealed cavity 111 or the second sealed cavity 112 along the air pipe. The ink discharge hole 1111 is located on the bottom wall of the first sealed cavity 111 and the second sealed cavity 112. By opening the ink discharge hole 1111, the ink can be completely discharged under the action of gravity.
[0064] Example 2
[0065] The second embodiment of this utility model discloses an industrial digital machine 2. Please refer to [link / reference]. Figure 5 As shown, the industrial digital machine 2 includes an ink cartridge 21, a negative pressure buffer box 22, a positive pressure buffer box 23, and an air storage tank 1 as described in Embodiment 1. The negative pressure buffer box 22 is connected to the ink cartridge 21 and the first sealing cavity 111, respectively, and the positive pressure buffer box 23 is connected to the ink cartridge 21 and the second sealing cavity 112, respectively.
[0066] Specifically, the top of the ink cartridge 21 is provided with a first connector 211 and a second connector 212. The negative pressure buffer box 22 is connected to the air tank 1 and the first connector 211 through an air pipe, which can prevent the ink in the ink cartridge 21 from flowing back into the first sealed cavity 111 of the air tank 1. The positive pressure buffer box 23 is connected to the air tank 1 and the second connector 212 through an air pipe, which can prevent the ink in the ink cartridge 21 from flowing back into the second sealed cavity 112 of the air tank 1.
[0067] Specifically, the industrial digital machine 2 also includes a first solenoid valve (not shown in the figure). The first solenoid valve is connected to the first pressure relief device 15 of the air storage tank 1 through an air pipe. By controlling the opening and closing of the first solenoid valve, the air pressure in the first sealed cavity 111 of the air storage tank 1 can be connected to the atmospheric pressure.
[0068] Specifically, the industrial digital machine 2 also includes a second solenoid valve (not shown in the figure). The second solenoid valve is connected to the second pressure relief device 17 of the air storage tank 1 through an air pipe. By controlling the opening and closing of the second solenoid valve, the air pressure in the second sealed cavity 112 of the air storage tank 1 can be connected to the atmospheric pressure.
[0069] The industrial digital machine 2 provided in the second embodiment of this utility model has the same function as the gas storage tank 1 provided in the first embodiment, and will not be described again here.
[0070] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0071] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A gas storage tank, characterized in that: The gas storage tank includes a tank body, and the interior of the tank body is provided with at least one first sealing cavity and at least one second sealing cavity. The first sealing cavity and the second sealing cavity are adjacent to each other. The air pressure in the first sealing cavity is less than the air pressure of the outside air, and the air pressure in the second sealing cavity is greater than the air pressure of the outside air.
2. The gas storage tank according to claim 1, characterized in that: There are two first sealing cavities, located on the left side of the gas tank body, and two second sealing cavities, located on the right side of the gas tank body.
3. The gas storage tank according to claim 1, characterized in that: There are two first sealing cavities and two second sealing cavities, which are distributed alternately inside the gas tank body.
4. The gas storage tank according to claim 1, characterized in that: The gas storage tank also includes a first pressure measuring device and a second pressure measuring device. The first pressure measuring device is connected to the side wall of the first sealing cavity and is used to detect the negative pressure value of the first sealing cavity. The second pressure measuring device is connected to the side wall of the second sealing cavity and is used to detect the positive pressure value of the second sealing cavity.
5. The gas storage tank according to claim 1, characterized in that: The gas storage tank further includes a first pressure inlet device and a first pressure relief device. Both the first pressure inlet device and the first pressure relief device are connected to the side wall of the first sealing cavity. When the negative pressure value in the first sealing cavity is greater than the preset negative pressure value, gas is discharged through the first pressure inlet device; when the negative pressure value in the first sealing cavity is less than the preset negative pressure value, gas is introduced through the first pressure relief device.
6. The gas storage tank according to claim 5, characterized in that: The gas storage tank also includes a second pressure inlet device and a second pressure relief device. Both the second pressure inlet device and the second pressure relief device are connected to the side wall of the second sealing cavity. When the positive pressure value in the second sealing cavity is less than the preset positive pressure value, gas is introduced through the first pressure inlet device; when the positive pressure value in the second sealing cavity is greater than the preset positive pressure value, gas is discharged through the second pressure relief device.
7. The gas storage tank according to claim 1, characterized in that: Both the bottom wall of the first sealing cavity and the bottom wall of the second sealing cavity are provided with ink discharge holes, which are used to discharge ink.
8. The gas storage tank according to claim 1, characterized in that: The gas tank body has a square structure.
9. The gas storage tank according to claim 1, characterized in that: Both the first sealing cavity and the second sealing cavity are cuboid chambers.
10. An industrial digital machine, characterized in that: The industrial digital machine includes an ink cartridge, a negative pressure buffer box, a positive pressure buffer box, and an air storage tank as described in any one of claims 1-9. The negative pressure buffer box is connected to the ink cartridge and the first sealing cavity, respectively, and the positive pressure buffer box is connected to the ink cartridge and the second sealing cavity, respectively.