An ink tank with reduced evaporation

Abstract

The utility model belongs to ink storage equipment technical field, especially to a kind of ink storage tank that can reduce volatilization, including tank body, and the sealing cover plate of bolt fixed connection at the top of tank body, the connecting place between tank body and sealing cover plate is provided with sealing ring, the inboard of tank body is adapted to float plate, the float plate includes hollow plate;Foam layer, the foam layer fills in the hollow cavity of hollow plate inside opening;Flexible sealing skirt, the flexible sealing skirt is set on the arc surface outside hollow plate, and the upper and lower sides of flexible sealing skirt are both projected and provided with convex edge. The utility model is set by setting float plate in the inboard of tank body, ink is stored below float plate, double-sealing protection is formed by float plate, sealing cover plate, prevent ink volatilization, and sealing cover plate generally does not need to open, greatly prevent the possibility of ink volatilization, solve the problem that ink is easily volatilized due to the fact that the sealing effect of ink storage tank is not good enough at present stage.

Description

Technical Field

[0001] This utility model relates to the field of ink storage equipment technology, specifically to an ink storage tank that can reduce evaporation. Background Technology

[0002] Storage is crucial in the production, transportation, and use of inks.

[0003] Traditional ink storage tanks mostly employ a single sealing structure, such as relying solely on a top cover for sealing. However, this sealing method has significant drawbacks: Firstly, when the ink level in the tank drops, a space is created above the liquid surface, where the ink easily evaporates. This places a heavy burden on the cover's sealing performance, allowing ink to easily evaporate through the connection between the cover and the tank body. This not only wastes ink but may also pollute the environment, and the evaporating gases pose a potential health threat to operators. Secondly, the sealing connections of traditional tanks are often poor, leading to leaks that further exacerbate ink loss and environmental problems. Furthermore, traditional tanks often require frequent opening of the top cover when extracting ink, which directly disrupts the sealed environment, causing significant ink evaporation. Opening the cover also increases the risk of impurities entering the tank and contaminating the ink. Therefore, there is an urgent need for an ink storage tank that can effectively reduce ink evaporation, improve sealing performance, and is easy to use. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an ink storage tank that reduces evaporation. By installing a float plate inside the tank, the ink is stored below the float plate, forming a double seal between the float plate and the sealing cover to prevent ink evaporation. Furthermore, the sealing cover generally does not need to be opened, greatly reducing the possibility of ink evaporation and solving the problem of insufficient sealing effect of current ink storage tanks, which leads to easy ink evaporation.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0008] An ink storage tank with reduced evaporation includes a tank body and a sealing cover plate fixed to the top of the tank body by bolts. A sealing ring is provided at the connection between the tank body and the sealing cover plate. A float plate is adapted to the inner side of the tank body. The float plate includes a hollow plate; a foam layer, the foam layer filling a hollow cavity opened inside the hollow plate; and a flexible sealing skirt, the flexible sealing skirt being fitted onto the arc surface outside the hollow plate, and both the upper and lower sides of the flexible sealing skirt having protruding edges. The flexible sealing skirt and protruding edges are in contact with the inner wall of the tank body. The ink is stored below the float plate. Multi-level anti-evaporation protection of the ink is achieved through the float plate and the sealing cover plate.

[0009] Furthermore, multiple limiting rods are fixedly connected to the inner bottom of the tank along the height direction of the tank, and the array of multiple limiting rods is distributed on the inner bottom of the tank. The hollow plate and the foam layer are provided with insertion holes that are adapted to the limiting rods at the corresponding limiting rod positions.

[0010] Furthermore, a lower sealing sleeve is fixedly connected to the lower surface of the hollow plate outside the insertion hole, and a limiting sleeve is fixedly connected to the upper surface of the hollow plate outside the insertion hole, with an upper sealing sleeve fixedly connected to the top of the limiting sleeve, and the limiting rod is adapted to the internal contour of the limiting sleeve.

[0011] Furthermore, an ink tube connector is fixedly connected to the center of the hollow plate, and the lower end of the ink tube connector is connected to an ink suction head. An array of support rods is fixedly connected to the lower surface of the hollow plate outside the ink suction head. The lower end of the support rods extends to the bottom of the ink suction head. When the ink in the tank is emptied, the support rods contact the bottom of the inner side of the tank, forming a floating plate support function.

[0012] Furthermore, a pipe joint is fixedly connected to the center of the sealing cover, and a flexible hose is connected between the pipe joint and the ink pipe joint. A liquid pump is installed on the outer wall of the tank, and a rigid pipe is connected between the liquid pump and the pipe joint.

[0013] Furthermore, an external pipe joint is connected to one side of the liquid pump, and a valve is installed on the external pipe joint.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides an ink storage tank that can reduce evaporation, and has the following beneficial effects:

[0016] 1. This utility model, through the real-time contact between the float plate and the ink liquid surface and the double sealing structure formed by the float plate and the sealing cover, fundamentally reduces the contact opportunity between ink and air, effectively preventing ink evaporation, reducing ink loss and environmental pollutant emissions. Furthermore, daily ink extraction does not require opening the sealing cover; it can be controlled by the liquid pump, reducing operation steps and lowering the risk of ink evaporation due to improper operation, further preventing ink evaporation. Moreover, the cover is only opened during maintenance, making it convenient to use and with low maintenance costs. Therefore, this ink storage tank has extremely high anti-evaporation characteristics and good performance.

[0017] 2. In this utility model, the raised edge design on the flexible sealing skirt increases the sealing contact surface, preventing leakage at the connection. At the same time, the cooperation between the sealing cover and the sealing ring further improves the top sealing effect, and the overall sealing performance is greatly improved. The guide structure of the float plate ensures its smooth lifting, and the support rod provides effective support and protection for the float plate, extending the service life of the equipment and ensuring long-term stable operation of the equipment. Attached Figure Description

[0018] Figure 1 This is a cross-sectional perspective view of the present invention;

[0019] Figure 2 This is a three-dimensional cross-sectional view of the float plate in this utility model;

[0020] Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle;

[0021] Figure 4 This is a schematic diagram of the external structure of this utility model.

[0022] In the diagram: 1. Tank body; 2. Limiting rod; 3. Float; 301. Hollow plate; 302. Ink tube connector; 303. Ink suction head; 304. Support rod; 305. Foam layer; 306. Flexible sealing skirt; 307. Raised edge; 308. Lower sealing sleeve; 309. Insertion hole; 3010. Limiting sleeve; 3011. Upper sealing sleeve; 4. Hose; 5. Sealing ring; 6. Sealing cover plate; 7. Pipe connector; 8. Rigid pipe; 9. Liquid pump; 10. External pipe connector. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example

[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown in the figure, an embodiment of this utility model proposes an ink storage tank that can reduce volatilization, including a tank body 1 and a sealing cover plate 6 fixed to the top of the tank body 1 by bolts. A sealing ring 5 is provided at the connection between the tank body 1 and the sealing cover plate 6. A float plate 3 is adapted to the inner side of the tank body 1. The float plate 3 includes a hollow plate 301 and a foam layer 305. The foam layer 305 fills the hollow cavity opened inside the hollow plate 301. A flexible sealing skirt 306 is fitted on the arc surface outside the hollow plate 301, and the upper and lower sides of the flexible sealing skirt 306 are provided with protruding edges 307. The flexible sealing skirt 306 and the protruding edges 307 are in contact with the inner wall of the tank body 1. The ink is stored below the float plate 3. The float plate 3 and the sealing cover plate 6 realize multi-level anti-volatilization protection of the ink.

[0026] It should be noted that tank 1 is the main part of the ink storage tank. The float plate 3 can greatly reduce the evaporation of ink. The hollow plate 301 provides basic structural support for the float plate 3. The foam layer 305 inside utilizes the low density characteristics to make the overall density of the float plate 3 less than that of the ink, ensuring that the float plate 3 can float on the surface of the ink liquid. When ink is injected or extracted from the tank 1, causing the liquid level to rise or fall, the float plate 3 will move synchronously with the liquid level, always in close contact with the top surface of the ink, blocking the direct contact between the ink and the air, forming the first line of defense. At the same time, the flexible sealing skirt 306, which is fitted on the outer arc surface of the hollow plate 301, is made of elastic material and can fit tightly against the inner wall of the tank 1. The raised edges 307 on the upper and lower sides further increase the sealing contact area, reduce the gap between the float plate 3 and the tank wall 1, and prevent ink from evaporating from the gap. The sealing cover plate 6 at the top of the tank 1 cooperates with the sealing ring 5 to form the second line of defense. The two lines of defense together constitute a multi-level seal, which greatly reduces the probability of ink evaporation.

[0027] like Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, a plurality of limiting rods 2 are fixedly connected to the inner bottom of the tank body 1 along the height direction of the tank body 1. The plurality of limiting rods 2 are arrayed on the inner bottom of the tank body 1. The hollow plate 301 and the foam layer 305 are provided with insertion holes 309 that are adapted to the limiting rods 2 at the corresponding positions of the limiting rods 2.

[0028] It should be noted that multiple arrayed limiting rods 2 are vertically fixed to the bottom of the inner side of the tank body 1. The hollow plate 301 and foam layer 305 of the float plate 3 are respectively provided with matching insertion holes 309. The float plate 3 is fitted onto the limiting rods 2 through the insertion holes 309. When the liquid level rises and falls, causing the float plate 3 to move, the limiting rods 2 will restrict the horizontal displacement of the float plate 3, ensuring that the float plate 3 always rises and falls smoothly along the axial direction of the tank body 1. This prevents the flexible sealing skirt 306 from not fitting tightly with the tank wall 1 due to the displacement of the float plate 3, thereby avoiding sealing failure and ink evaporation.

[0029] like Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, a lower sealing sleeve 308 is fixedly connected to the lower surface of the hollow plate 301 outside the insertion hole 309, a limiting sleeve 3010 is fixedly connected to the upper surface of the hollow plate 301 outside the insertion hole 309, and an upper sealing sleeve 3011 is fixedly connected to the top of the limiting sleeve 3010. The limiting rod 2 is adapted to the internal contour of the limiting sleeve 3010.

[0030] It should be noted that the lower sealing sleeve 308 on the lower surface of the hollow plate 301 is fitted onto the outside of the limiting rod 2, sealing the gap below the insertion hole 309 and preventing ink from seeping upward from the insertion hole 309; the limiting sleeve 3010 on the upper surface is adapted to the limiting rod 2, further restricting the radial sway of the float 3 and improving the stability during lifting and lowering; the upper sealing sleeve 3011 on the top of the limiting sleeve 3010 is fitted onto the outside of the limiting rod 2, which can seal the gap above the insertion hole 309 and prevent leakage when the float 3 is lifted and lowered.

[0031] like Figure 2 As shown, in some embodiments, an ink tube connector 302 is fixedly connected to the center of the hollow plate 301, and the lower end of the ink tube connector 302 is connected to an ink suction head 303. An array of support rods 304 are fixedly connected to the lower surface of the hollow plate 301 outside the ink suction head 303. The lower end of the support rods 304 extends to the bottom of the ink suction head 303. When the ink in the tank 1 is emptied, the support rods 304 contact the inner bottom of the tank 1, forming the supporting function of the float plate 3.

[0032] It should be noted that the ink tube connector 302 in the center of the hollow plate 301 is connected to the ink suction head 303 at the lower end, forming the core channel for ink extraction. The ink suction head 303 extends to the bottom of the float plate 3 and can rise and fall synchronously with the float plate 3, ensuring that the suction head can always contact the ink during the liquid level drop, thus avoiding the intake of air during extraction. The lower ends of the arrayed support rods 304 extend to the bottom of the ink suction head 303. When the ink in the tank 1 is emptied, the support rods 304 will first contact the bottom of the inner side of the tank 1 to provide support for the float plate 3, thus preventing the ink suction head 303 from colliding with the tank 1 and being damaged.

[0033] like Figure 1 and Figure 2 As shown, in some embodiments, a pipe joint 7 is fixedly connected to the center of the sealing cover 6, a flexible hose 4 is connected between the pipe joint 7 and the ink pipe joint 302, and a liquid pump 9 is installed on the outer wall of the tank 1, a rigid pipe 8 is connected between the liquid pump 9 and the pipe joint 7.

[0034] It should be noted that the pipe joint 7 at the center of the sealing cover plate 6 is connected at one end to the ink pipe joint 302 of the float plate 3 via a flexible hose 4, and at the other end to the liquid pump 9 on the outer wall of the tank via a rigid pipe 8, forming a complete ink extraction channel. When ink needs to be extracted, the liquid pump 9 is started, and the liquid pump 9 generates negative pressure, which extracts the ink in the tank 1 through the rigid pipe 8, pipe joint 7, flexible hose 4, ink pipe joint 302 and ink suction head 303. The flexible characteristics of the flexible hose 4 can be adapted to the lifting and lowering movement of the float plate 3.

[0035] like Figure 1 As shown, in some embodiments, an external pipe joint 10 is connected to one side of the pump 9, and a valve is installed on the external pipe joint 10.

[0036] It should be noted that the outer pipe connector 10 is connected to one side of the liquid pump 9 and can be connected to external ink-using equipment (such as the ink supply pipe of a printing press) to achieve direct ink delivery. The valve is installed on the outer pipe connector 10. When ink needs to be extracted, the valve is opened, and the ink extracted by the liquid pump 9 can be delivered to the external equipment through the outer pipe connector 10. When extraction stops or delivery is not required, the valve is closed, which can block the ink flow, prevent ink leakage, and prevent external air from entering the extraction channel through the outer pipe connector 10.

[0037] like Figure 4 As shown, in some embodiments, the sealing cover 6 is connected to a pneumatic pipe that extends into the interior of the tank 1 and is equipped with a pneumatic valve. When ink needs to be extracted, the pneumatic valve on the pneumatic pipe is opened or closed to input or output gas, so that the float 3 can rise and fall normally, thus avoiding the float 3 from failing to rise and fall normally due to the air pressure inside the tank 1.

[0038] The working principle and usage steps of this utility model are as follows: Ink injection operation: Connect the pipeline of the external ink supply equipment to the external pipe connector 10, turn on the liquid pump 9 on the outer wall of the tank 1, and use the power of the liquid pump 9 to inject the external ink sequentially through the external pipe connector 10, the rigid pipe 8, the pipe connector 7 on the sealing cover plate 6, the hose 4, and the ink pipe connector 302 of the float plate 3, and finally inject it into the tank 1 from the ink suction head 303. During the injection process, the ink level rises, and the float plate 3 rises synchronously along the limiting rod 2 due to the low density characteristics of the foam layer 305. The flexible sealing skirt 306 and the convex edge 307 are always in contact with the inner wall of the tank. The lower sealing sleeve 308, the limiting sleeve 3010 and the upper sealing sleeve 3011 ensure that the insertion hole 309 is sealed to prevent ink leakage. After injecting to the preset amount, close the valve of the liquid pump 9 and the external pipe connector 10, disconnect the external supply pipeline, and complete the ink injection. Ink Discharge Operation: Connect the pipeline of the external ink-using equipment to the external pipe connector 10, turn on the liquid pump 9 and open the valve of the external pipe connector 10. The liquid pump 9 generates negative pressure, and the ink in the tank 1 is sequentially transported to the external equipment through the ink suction head 303, ink pipe connector 302, hose 4, pipe connector 7, rigid pipe 8, and external pipe connector 10. During the discharge process, the ink level drops, and the float 3 descends synchronously along the limit rod 2, always in close contact with the top surface of the ink, continuously blocking the ink from contacting the air, ensuring a sealing and anti-evaporation effect. Control the discharge volume according to the needs. After reaching the target, close the valve of the liquid pump 9 and the external pipe connector 10, disconnect the external use pipeline, and complete the ink discharge. During this process, open the air pressure valve on the air pressure pipeline to adjust the pressure inside the tank 1 to avoid the pressure being too low and causing the float 3 to be unable to move down. When the ink in the tank 1 is completely discharged, the support rod 304 below the float 3 first contacts the bottom of the inner side of the tank 1 to support the float 3 and prevent the ink suction head 303 from colliding and being damaged by the bottom of the tank 1.

[0039] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An ink storage tank with reduced evaporation, comprising a tank body (1) and a sealing cover plate (6) bolted to the top of the tank body (1), wherein a sealing ring (5) is provided at the connection between the tank body (1) and the sealing cover plate (6), characterized in that: The inner side of the tank (1) is fitted with a float plate (3), the float plate (3) including Hollow board (301); A foam layer (305) is filled in a hollow cavity inside a hollow board (301); A flexible sealing skirt (306) is fitted onto the arc surface outside the hollow plate (301), and protruding edges (307) are provided on both the upper and lower sides of the flexible sealing skirt (306). The flexible sealing skirt (306) and protruding edges (307) are in contact with the inner wall of the tank (1). The ink is stored below the float plate (3). Multi-level anti-evaporation protection of the ink is achieved through the float plate (3) and the sealing cover plate (6).

2. The ink storage tank with reduced evaporation according to claim 1, characterized in that: Multiple limiting rods (2) are fixedly connected to the bottom inner side of the tank (1) along the height direction of the tank (1). The multiple limiting rods (2) are arrayed on the bottom inner side of the tank (1). The hollow plate (301) and the foam layer (305) are provided with insertion holes (309) that are adapted to the limiting rods (2) at the corresponding positions of the limiting rods (2).

3. The ink storage tank with reduced evaporation according to claim 2, characterized in that: The lower surface of the hollow plate (301) is fixedly connected to the outer side of the insertion hole (309) with a lower sealing sleeve (308), and the upper surface of the hollow plate (301) is fixedly connected to the outer side of the insertion hole (309) with a limiting sleeve (3010), and the top of the limiting sleeve (3010) is fixedly connected to an upper sealing sleeve (3011). The limiting rod (2) is adapted to the internal contour of the limiting sleeve (3010).

4. The ink storage tank with reduced evaporation according to claim 1, characterized in that: An ink tube connector (302) is fixedly connected to the center of the hollow plate (301), and the lower end of the ink tube connector (302) is connected to an ink suction head (303). An array of support rods (304) is fixedly connected to the lower surface of the hollow plate (301) outside the ink suction head (303). The lower end of the support rods (304) extends to the bottom of the ink suction head (303). When the ink in the tank (1) is emptied, the support rods (304) contact the bottom of the inner side of the tank (1) to form the support function of the float (3).

5. The ink storage tank with reduced evaporation according to claim 4, characterized in that: A pipe joint (7) is fixedly connected to the center of the sealing cover (6). A flexible hose (4) is connected between the pipe joint (7) and the ink pipe joint (302). A liquid pump (9) is installed on the outer wall of the tank (1). A rigid pipe (8) is connected between the liquid pump (9) and the pipe joint (7).

6. The ink storage tank with reduced evaporation according to claim 5, characterized in that: The pump (9) is connected to an external pipe joint (10) on one side, and a valve is installed on the external pipe joint (10).

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