An ink filling vacuum pressure maintaining compensation device
By designing a vacuum and waterproof component for ink filling vacuum pressure compensation, the problem of solenoid valve blockage during ink filling was solved, achieving stable operation of the solenoid valve and precise control of the filling operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHANGJIAGANG DAWN CHEM
- Filing Date
- 2025-11-19
- Publication Date
- 2026-07-21
AI Technical Summary
During the ink filling process, the stickiness and functional particulate additives cause residual blockage in the solenoid valve throttling orifice, affecting normal operation. Existing equipment is difficult to clean effectively, resulting in unstable filling operations.
A vacuum pressure compensation device for ink filling was designed, comprising a vacuuming component, a suction component, and a waterproof component. The device cleans impurities in the solenoid valve in a timely manner by vacuuming to prevent blockage, and uses a check valve and an electric hydraulic cylinder to control the water flow to achieve precise rinsing.
It significantly reduces the amount of impurities remaining inside the solenoid valve's throttling orifice, prevents ink from solidifying and clogging, ensures smooth operation of the solenoid valve, and guarantees the stability and accuracy of the filling operation.
Smart Images

Figure CN224529081U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vacuum can technology, specifically to an ink filling vacuum pressure compensation device. Background Technology
[0002] The ink filling vacuum pressure compensation device is a special equipment used in the ink filling process. By constructing a vacuum environment and controlling pressure, it compensates in real time for filling volume deviations caused by changes in ink fluidity and pressure fluctuations inside the container during the filling process. At the same time, it reduces ink foaming and stratification problems, ensures the metering accuracy and consistency of each batch of filled products, and improves the stability of filling operations and product quality. The ink itself is viscous, and some inks contain functional particulate additives. When flowing through the solenoid valve for a long time, it is very easy to leave residues and accumulate in the throttling orifice. After these residual inks solidify, they will block the channel, causing the valve core to be unable to move smoothly, resulting in the solenoid valve being stuck or even unable to operate normally. Therefore, an ink filling vacuum pressure compensation device is proposed to address the above problems. Utility Model Content
[0003] The purpose of this invention is to provide an ink filling vacuum pressure compensation device to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: A vacuum pressure compensation device for ink filling includes a vacuum tank. A vacuum pumping component is fixedly connected to the front end of the vacuum tank. A waterproof component is fixedly connected to the upper end of the vacuum pumping component. A suction component is fixedly connected to the lower end of the vacuum pumping component. The vacuum pumping component includes an external pipe. A solenoid valve is fixedly connected to the rear end of the external pipe. A rear-mounted pipe is fixedly connected to the rear end of the solenoid valve. A first check valve is fixedly connected to the inner side of the external pipe. A second check valve is fixedly connected to the inner side of the rear-mounted pipe. The suction component includes a water pipe. A branch pipe is fixedly connected to the front end of the water pipe. A first internal ring seat is fixedly connected to the inner side of the water pipe. A first sealing block is attached to the inner side of the water pipe. A first rubber sealing ring is fixedly connected to the top of the first sealing block. A second rubber sealing ring is fixedly connected to the side of the first rubber sealing ring. A driving mechanism is fixedly connected to the lower end of the water pipe.
[0005] As a further optimization of this utility model, the upper end of the external pipe is provided with a first port, the external pipe is fixedly connected to the water supply pipe near the first port, and the first check valve is located at the front end of the first port.
[0006] As a further optimization of this utility model, the following features are provided: a second port is provided at the lower end of the rear-mounted pipe; the rear-mounted pipe is fixedly connected to the water pipe near the second port; and the second check valve is located at the rear end of the second port.
[0007] As a further optimization of this utility model, the following features are provided: a first electric hydraulic cylinder is fixedly connected to the bottom end of the water pipe; the piston rod of the first electric hydraulic cylinder moves inside the water pipe; the end of the piston rod of the first electric hydraulic cylinder is fixedly connected to the first sealing block; and a water pump is fixedly connected to the front end of the branch pipe.
[0008] As a further optimization of this utility model, the inner side of the water pipe is connected to the inner side of the branch pipe, the inner side of the first built-in ring seat is a hollow structure, the top end of the first rubber sealing ring can fit with the bottom end of the first built-in ring seat, and the outer side of the second rubber sealing ring fits with the inner side of the water pipe.
[0009] As a further optimization of this utility model, the waterproof component includes a water supply pipe, a water source pipe fixedly connected to the front end of the water supply pipe, a fixed connection between the upper end of the water supply pipe and the cylinder body of the second electric hydraulic cylinder, a fixed connection between the piston rod end of the second electric hydraulic cylinder and a second sealing block, two third rubber sealing rings fixedly connected to the outer side of the second sealing block, and a second built-in ring seat fixedly connected to the inner side of the water supply pipe.
[0010] As a further optimization of this utility model, the second built-in ring seat is located at the lower end of the water source connector, the outer side of the third rubber sealing ring is in contact with the inner side of the water supply pipe, and the two third rubber sealing rings are distributed at the upper and lower ends of the second sealing block. The water source connector can be sealed by the second sealing block and the third rubber sealing rings.
[0011] Compared with the prior art, the beneficial effects of this utility model are: In this invention, the vacuum filling and pressure-holding compensation device, through the vacuuming component, suction component, and waterproof component, can significantly reduce the residue of impurities inside the solenoid valve throttling orifice by promptly cleaning after vacuuming. This effectively prevents ink from solidifying and clogging the channel, and prevents the solenoid valve from experiencing switching jams or even malfunctioning. It ensures smooth operation of the solenoid valve and thus ensures the stable functioning of the vacuum pressure-holding compensation device. At the same time, this cleaning method does not require disassembly and cleaning, preventing the inconvenience caused by frequent disassembly and debugging. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the vacuum assembly structure of this utility model; Figure 3 This is a cross-sectional structural diagram of the vacuum assembly of this utility model; Figure 4 This is an exploded structural diagram of the vacuum pumping assembly of this utility model; Figure 5 This is a schematic diagram of the suction component structure of this utility model; Figure 6 This is a schematic diagram of the structure of the first sealing block of this utility model; Figure 7 This is a schematic diagram of the waterproof component structure of this utility model.
[0013] In the picture: 1. Vacuum container; 2. Vacuum assembly; 21. External connecting pipe; 22. Solenoid valve; 23. Rear-mounted pipe; 24. First check valve; 25. Second check valve; 3. Suction assembly; 31. Water pipe; 32. Branch pipe; 33. First internal ring seat; 34. First sealing block; 35. First rubber sealing ring; 36. Second rubber sealing ring; 37. First electric hydraulic cylinder; 38. Water pump; 4. Waterproof components; 41. Water supply pipe; 42. Water source connection pipe; 43. Second electric hydraulic cylinder; 44. Second sealing block; 45. Second internal ring seat; 46. Third rubber sealing ring. Detailed Implementation
[0014] 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.
[0015] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0016] Please see Figures 1-7 This utility model provides a technical solution: A vacuum pressure compensation device for ink filling includes a vacuum tank 1. A vacuum pumping component 2 is fixedly connected to the front end of the vacuum tank 1. A waterproof component 4 is fixedly connected to the upper end of the vacuum pumping component 2. A suction component 3 is fixedly connected to the lower end of the vacuum pumping component 2. The vacuum pumping component 2 includes an outer pipe 21. A solenoid valve 22 is fixedly connected to the rear end of the outer pipe 21. A rear pipe 23 is fixedly connected to the rear end of the solenoid valve 22. A first check valve 24 is fixedly connected to the inner side of the outer pipe 21. A second check valve 25 is fixedly connected to the inner side of the rear pipe 23. The suction component 3 includes a water pipe 31. A branch pipe 32 is fixedly connected to the front end of the water pipe 31. A first internal ring seat 33 is fixedly connected to the inner side of the water pipe 31. A first sealing block 34 is attached to the inner side of the water pipe 31. A first rubber sealing ring 35 is fixedly connected to the top of the first sealing block 34. A second rubber sealing ring 36 is fixedly connected to the side of the first rubber sealing ring 35. A driving mechanism is fixedly connected to the lower end of the water pipe 31.
[0017] As a further implementation of this solution, the upper end of the external pipe 21 is provided with a first port. The external pipe 21 is fixedly connected to the water supply pipe 41 near the first port. The first check valve 24 is located at the front end of the first port. Through the above settings, the on / off state of the first port can be precisely controlled to avoid backflow of water or overflow of impurities during cleaning, ensuring the sealing and stability of the cleaning process, and further improving the impurity cleaning effect. As a further implementation of this solution, a second port is provided at the lower end of the post-pipe 23. The post-pipe 23 is fixedly connected to the water pipe 31 near the second port. The second check valve 25 is located at the rear end of the second port. Through the above settings, the mutual interference between the vacuuming and cleaning processes can be effectively blocked, preventing ink residue or impurities from entering the vacuum channel, ensuring the independent and efficient operation of each process of the device, and reducing the risk of failure. As a further implementation of this solution, a first electric hydraulic cylinder 37 is fixedly connected to the bottom end of the water pipe 31. The piston rod of the first electric hydraulic cylinder 37 moves inside the water pipe 31. The end of the piston rod of the first electric hydraulic cylinder 37 is fixedly connected to the first sealing block 34. A water pump 38 is fixedly connected to the front end of the branch pipe 32. With the above settings, the water source entry and suction rhythm can be flexibly controlled to achieve precise reverse flushing of the solenoid valve 22, enhance the thoroughness of impurity cleaning, and avoid residual blockage of the throttling orifice. As a further implementation of this solution, the inner side of the water pipe 31 is connected to the inner side of the branch pipe 32, the inner side of the first built-in ring seat 33 is a hollow structure, the top of the first rubber sealing ring 35 can fit with the bottom of the first built-in ring seat 33, and the outer side of the second rubber sealing ring 36 fits with the inner side of the water pipe 31. Through the above settings, the pressure balance and channel sealing during cleaning can be guaranteed, avoiding water leakage or pressure imbalance from affecting the flushing effect, and ensuring the stable and reliable operation of the device. As a further implementation of this solution, the waterproof component 4 includes a water supply pipe 41, with a water source pipe 42 fixedly connected to the front end of the water supply pipe 41. The upper end of the water supply pipe 41 is fixedly connected to the cylinder body of the second electric hydraulic cylinder 43. A second sealing block 44 is fixedly connected to the end of the piston rod of the second electric hydraulic cylinder 43. Two third rubber sealing rings 46 are fixedly connected to the outside of the second sealing block 44. A second built-in ring seat 45 is fixedly connected to the inside of the water supply pipe 41. Through the above settings and the drive and sealing design, the water source can be quickly switched on and off and blocked, ensuring the efficient start and stop of the cleaning process and improving the operational flexibility of the device. As a further implementation of this solution, the second built-in ring seat 45 is located at the lower end of the water source connector 42, the outer side of the third rubber sealing ring 46 is in contact with the inner side of the water supply pipe 41, and the two third rubber sealing rings 46 are distributed at the upper and lower ends of the second sealing block 44. The water source connector 42 can be sealed by the second sealing block 44 and the third rubber sealing rings 46. With the above settings, the double sealing structure can prevent water leakage during cleaning, ensure that the water source is concentrated on the flushing channel, enhance the cleaning effect of impurities, and at the same time protect the internal components of the device from water corrosion.
[0018] Workflow: During vacuuming, the second sealing block 44 seals the second internal ring seat 45 with a rubber pad, and the second sealing block 44 seals the water source inside the water source connector 42 with two third rubber sealing rings 46. The water source connector 42 is directly connected to the water source pipeline. At the same time, the top of the first rubber sealing ring 35 is tightly attached to the bottom of the first internal ring seat 33, sealing the through hole inside the first internal ring seat 33. The front end of the outer connector 21 is connected to the vacuum pump. The solenoid valve 22 is opened and the vacuum pump is started. At this time, a negative pressure state is generated inside the outer connector 21 and the rear pipe 23. Vacuuming is carried out inside the vacuum tank 1 through the rear pipe 23. During this period, the second check valve 25 and the first check valve 24 are opened under pressure. After the vacuuming is completed inside the vacuum tank 1, the second check valve 25 is closed under the negative pressure state inside the vacuum tank 1. The solenoid valve 22 is then closed, completing the vacuuming work. When cleaning the impurities remaining inside the solenoid valve 22, the second electric hydraulic cylinder 43 is activated to move the second sealing block 44 upward. Because the third rubber sealing ring 46 seals the second sealing block 44 and the water supply pipe 41, and the solenoid valve 22 is in a closed state, a negative pressure is generated inside the outer pipe 21. The first check valve 24 is closed under pressure until the second sealing block 44 is located at the upper end of the water source pipe 42. At this time, water flows into the water source pipe 42 and the water supply pipe 41, entering the outer pipe 21 through the second internal ring seat 45. The first check valve 24 remains closed due to the tension of the internal spring. Therefore, the outer pipe 21 is under constant pressure. In the first state, the solenoid valve 22 is opened to balance the internal pressure of the rear pipe 23 and the water pipe 31. At this time, the first electric hydraulic cylinder 37 is started to drive the first sealing block 34 to move, and the water source enters the inside of the branch pipe 32. The water pump 38 is started to pump and siphon the inside of the branch pipe 32. At this time, the solenoid valve 22 is flushed in reverse by the water source. During this process, the first check valve 24 is closed by the spring contact, and the second check valve 25 is closed by the negative pressure of the vacuum tank 1. After each vacuuming is completed, timely cleaning significantly reduces the residue of impurities inside the throttling orifice of the solenoid valve 22, prevents ink from solidifying and clogging the channel, and ensures the normal operation of the solenoid valve 22.
[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An ink filling vacuum pressure compensation device, comprising a vacuum tank (1), characterized in that: The vacuum tank (1) is fixedly connected to a vacuum pumping assembly (2) at its front end, a waterproof assembly (4) is fixedly connected to the upper end of the vacuum pumping assembly (2), and a suction assembly (3) is fixedly connected to the lower end of the vacuum pumping assembly (2). The vacuum assembly (2) includes an external pipe (21), a solenoid valve (22) is fixedly connected to the rear end of the external pipe (21), a rear pipe (23) is fixedly connected to the rear end of the solenoid valve (22), a first check valve (24) is fixedly connected to the inner side of the external pipe (21), and a second check valve (25) is fixedly connected to the inner side of the rear pipe (23). The suction assembly (3) includes a water pipe (31), a branch pipe (32) is fixedly connected to the front end of the water pipe (31), a first built-in ring seat (33) is fixedly connected to the inner side of the water pipe (31), a first sealing block (34) is attached to the inner side of the water pipe (31), a first rubber sealing ring (35) is fixedly connected to the top of the first sealing block (34), a second rubber sealing ring (36) is fixedly connected to the side of the first rubber sealing ring (35), and a driving mechanism is fixedly connected to the lower end of the water pipe (31).
2. The ink filling vacuum pressure compensation device according to claim 1, characterized in that: The upper end of the external pipe (21) is provided with a first port, and the external pipe (21) is fixedly connected to the water supply pipe (41) near the first port. The first check valve (24) is located at the front end of the first port.
3. The ink filling vacuum pressure compensation device according to claim 1, characterized in that: The lower end of the rear tube (23) is provided with a second port. The rear tube (23) is fixedly connected to the water pipe (31) near the second port. The second check valve (25) is located at the rear end of the second port.
4. The ink filling vacuum pressure compensation device according to claim 1, characterized in that: The bottom end of the water pipe (31) is fixedly connected to a first electric hydraulic cylinder (37), the piston rod of the first electric hydraulic cylinder (37) moves inside the water pipe (31), the end of the piston rod of the first electric hydraulic cylinder (37) is fixedly connected to a first sealing block (34), and the front end of the branch pipe (32) is fixedly connected to a water pump (38).
5. The ink filling vacuum pressure compensation device according to claim 1, characterized in that: The inner side of the water pipe (31) is connected to the inner side of the branch pipe (32). The inner side of the first built-in ring seat (33) is a hollow structure. The top of the first rubber sealing ring (35) can fit with the bottom of the first built-in ring seat (33). The outer side of the second rubber sealing ring (36) fits with the inner side of the water pipe (31).
6. The ink filling vacuum pressure compensation device according to claim 1, characterized in that: The waterproof component (4) includes a water supply pipe (41), with a water source pipe (42) fixedly connected to the front end of the water supply pipe (41). The upper end of the water supply pipe (41) is fixedly connected to the cylinder body of the second electric hydraulic cylinder (43). A second sealing block (44) is fixedly connected to the end of the piston rod of the second electric hydraulic cylinder (43). Two third rubber sealing rings (46) are fixedly connected to the outside of the second sealing block (44). A second built-in ring seat (45) is fixedly connected to the inside of the water supply pipe (41).
7. The ink filling vacuum pressure compensation device according to claim 6, characterized in that: The second built-in ring seat (45) is located at the lower end of the water source connector (42). The outer side of the third rubber sealing ring (46) is in contact with the inner side of the water supply pipe (41). The two third rubber sealing rings (46) are distributed at the upper and lower ends of the second sealing block (44). The water source connector (42) can be sealed by the second sealing block (44) and the third rubber sealing ring (46).