An ink filling mechanism
By combining the design of the filling tube, the fixed piston, and the one-way valve, the problems of air mixing and low filling accuracy in the existing technology are solved, achieving high-precision and low-cost ink filling effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEFEI MEIXIN NANO TECH CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-24
AI Technical Summary
Existing ink filling technologies are prone to air ingress, resulting in low filling accuracy and high equipment costs, failing to meet the demands of demanding filling scenarios.
The design employs a combination of a filling tube, a fixed piston, a one-way valve, and a planar transfer mechanism. By using the fixed piston in conjunction with the lifting and lowering of the filling tube and the one-way valve control of the liquid inlet tube, precise control of the filling volume and reduction of air contamination can be achieved.
This reduces air contamination during the filling process, improves filling accuracy, and enhances ink filling quality and equipment economy.
Smart Images

Figure CN224546383U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ink processing technology, and in particular to an ink filling mechanism. Background Technology
[0002] Ink is a liquid containing pigments or dyes. It is used for writing or drawing. The earliest inks used dyes made from metals, walnut shells or seeds, or the ink from aquatic animals such as fish or octopuses. Ink appeared with the improvement of writing tools, such as the use of fountain pens, based on the chemical properties of its raw materials.
[0003] Current ink filling technologies often encounter problems during the filling process, such as air ingress, poor liquid flow, and low filling accuracy. Using high-precision equipment is costly. These issues directly affect the filling quality of the ink, especially in demanding filling scenarios, failing to meet market requirements. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as the tendency for excessive air to be incorporated during filling, generally low filling accuracy, and high equipment cost, and to propose an ink filling mechanism.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An ink filling mechanism includes a filling tube, a first cylinder for driving the filling tube to rise and fall, and a fixing plate for mounting the first cylinder. The fixing plate is connected to a planar transfer mechanism for driving the cylinder to move.
[0007] A fixed piston is slidably connected inside the filling tube. The fixed piston is fixedly installed below the fixed plate by a fixed rod. A sealing cylinder that matches the inner wall of the filling tube is provided at the upper end of the fixed piston.
[0008] The lower end of the filling tube is provided with a liquid outlet and a first one-way valve. The lower part of the side wall of the filling tube is connected to an inlet pipe above the liquid outlet. The inlet pipe is provided with a second one-way valve. The other end of the inlet pipe is connected to a liquid supply device.
[0009] Preferably, the planar transfer mechanism includes a mounting plate, a rodless cylinder horizontally arranged on the mounting plate, a sliding plate connected to the sliding end of the rodless cylinder, and a second cylinder vertically arranged on the sliding plate, wherein the telescopic end of the second cylinder is fixedly connected to the fixed plate.
[0010] More preferably, the mounting plate is also provided with a guide rod parallel to the rodless cylinder, and multiple sliding sleeves are slidably arranged on the guide rod, all of which are fixedly connected to the slide plate.
[0011] More preferably, the front side of the slide plate is vertically fixed with multiple slide rails, each slide rail having a slider slidably mounted on it, and the sliders are all fixedly mounted on the rear side of the fixed plate.
[0012] Preferably, a stabilizing rod extends from the telescopic end of the first cylinder, and the stabilizing rod is provided with multiple fixing collars and fitted onto the outside of the filling tube.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. In this utility model, by using the design of a fixed piston in conjunction with the movement of the filling tube, the filling tube can be easily inserted into the container for filling, reducing the height difference between the filling tube and the liquid surface, reducing the air mixed into the ink during filling, and ensuring good ink filling quality.
[0015] 2. In this utility model, the position design of the liquid inlet pipe, combined with two one-way valves, ensures continuous liquid inlet. At the same time, the filling volume can be controlled by controlling the return position of the filling pipe with the first cylinder, which facilitates precise control of ink filling and improves the filling effect.
[0016] This utility model features a novel design and simple structure, effectively ensuring precise control of the filling volume. At the same time, by filling as close to the liquid surface as possible during filling, it reduces ink splashing and air mixing, thereby improving the filling quality. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the appearance structure of this utility model.
[0018] Figure 2 This is a side view of the present invention.
[0019] Figure 3 This is a cross-sectional schematic diagram of the filling tube of this utility model.
[0020] Figure 4 This is a schematic diagram of the planar transfer mechanism of this utility model.
[0021] Figure 5 This is a cross-sectional schematic diagram of the planar transfer mechanism of this utility model.
[0022] In the diagram: 1. Filling tube, 11. Outlet, 12. First check valve, 13. First cylinder, 13. Stabilizing rod, 131. Fixed piston, 2. Sealing cylinder, 21. Fixed rod, 22. Inlet tube, 3. Second check valve, 31. Planar transfer mechanism, 4. Mounting plate, 41. Rodless cylinder, 42. Sliding end, 421. Guide rod, 43. Sliding sleeve, 431. Slide plate, 44. Second cylinder, 45. Slide rail, 46. Slider, 461. Fixed plate, 5. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] Reference Figure 1-5 An ink filling mechanism includes a filling tube 1, a first cylinder 13 for driving the filling tube 1 to rise and fall, and a fixing plate 5 for mounting the first cylinder 13. The fixing plate 5 is connected to a planar transfer mechanism 4 for driving its movement. The planar transfer mechanism 4 drives the fixing plate 5 and the filling tube 1 to move in the XY plane, so as to move the filling tube 1 to a designated position for filling, which facilitates the movement of the filling tube 1 into the container for filling, thereby reducing the amount of air mixed in with the ink during filling.
[0025] A fixed piston 2 is slidably connected inside the filling tube 1. The fixed piston 2 is fixedly installed below the fixed plate 5 by a fixed rod 22. The upper end of the fixed piston 2 is provided with a sealing cylinder 21 that matches the inner wall of the filling tube 1. The filling tube 1 is driven to rise and fall by the first cylinder 13, which works with the fixed piston 2 to squeeze the ink contained in the filling tube 1 so as to send the ink out of the filling tube 1.
[0026] The filling tube 1 has an outlet 11 at its lower end and a first one-way valve 12. An inlet pipe 3 is connected to the lower part of the side wall of the filling tube 1 above the outlet 11. A second one-way valve 31 is installed in the inlet pipe 3, and the other end of the inlet pipe 3 is connected to a liquid supply device. Ink is dispensed from the filling tube 1 through the outlet 11. After filling, the planar conveying mechanism 4 drives the fixing plate 5 to detach from the filling tube 1 from the container. Then, the first cylinder 13 is activated to drive the filling tube 1 downwards. At this time, the fixed piston 2 moves upwards relative to the filling tube 1, creating a negative pressure state in the filling tube 1. Due to the design of the first one-way valve 12, no air is drawn in at the outlet 11. Under the negative pressure, ink is drawn into the filling tube 1 through the inlet pipe 3 until the ink storage in the filling tube 1 reaches the designed amount, at which point the next filling can begin. It should be noted that when the first cylinder 13 retracts to cooperate with the fixed piston 2 to push out the ink, due to the action of the second one-way valve 31, the ink will not flow back from the inlet pipe 3, but will only be sent out from the outlet 11 for filling.
[0027] Based on the above technical solution, during ink filling, the planar transfer mechanism 4 drives the fixed plate 5 to move to the designated position and move it downward, so that the outlet 11 extends into the bottom position of the container. Then, the first cylinder 13 is activated to drive the filling tube 1 to move upward. At the same time as it moves upward, the fixed piston 2, which is fixed in position, injects the ink stored in the filling tube 1 into the container through the outlet 11 to complete the filling. During filling, the outlet 11 is always in a relatively suitable position with the ink surface in the container, which effectively reduces the amount of air mixed into the ink during filling and ensures good filling accuracy and production quality.
[0028] In this technical solution, such as Figure 1-5 As shown, the planar transfer mechanism 4 includes a mounting plate 41, a rodless cylinder 42 horizontally mounted on the mounting plate 41, a sliding plate 44 connected to the sliding end 421 of the rodless cylinder 42, and a second cylinder 45 vertically mounted on the sliding plate 44. The telescopic end of the second cylinder 45 is fixedly connected to the fixed plate 5. The rodless cylinder 42 drives the sliding plate 44 to slide horizontally, and the telescopic movement of the second cylinder 45 drives the fixed plate 5 to move vertically. This causes the fixed plate 5 and the filling tube 1 mounted on its front side to move on the plane. While moving the filling tube 1, it is also convenient to insert the filling tube 1 into the container for filling, ensuring a good defoaming filling effect.
[0029] In this technical solution, such as Figure 1-5 As shown, the mounting plate 41 is also provided with a guide rod 43 parallel to the rodless cylinder 42. Multiple sliding sleeves 431 are slidably disposed on the guide rod 43, and all sliding sleeves 431 are fixedly connected to the slide plate 44. Through the cooperation of the guide rod 43 and the sliding sleeves 431, the good stability of the slide plate 44 during horizontal sliding is ensured, and the precise position control of the filling tube 1 is guaranteed.
[0030] In this technical solution, such as Figure 1-5 As shown, multiple slide rails 46 are vertically fixed on the front side of the slide plate 44, and sliders 461 are slidably mounted on each slide rail 46. The sliders 461 are all fixedly mounted on the rear side of the fixed plate 5. Through the cooperation of the slide rails 46 and the sliders 461, the filling tube 1 can be stably inserted into the container, avoiding collisions and friction with the container that may affect the packaging quality of the ink.
[0031] In this technical solution, such as Figure 1-4 As shown, a stabilizing rod 131 extends from the telescopic end of the first cylinder 13. The stabilizing rod 131 is equipped with multiple fixing rings and is fitted onto the outside of the filling tube 1. This further improves the stability of the sliding of the filling tube 1 during ink filling, ensuring good ink extrusion performance.
[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An ink filling mechanism, characterized in that, It includes a filling tube (1), a first cylinder (13) for driving the filling tube (1) to rise and fall, and a fixing plate (5) for mounting the first cylinder (13). The fixing plate (5) is connected to a planar transfer mechanism (4) for driving it to move. A fixed piston (2) is slidably connected inside the filling tube (1). The fixed piston (2) is fixedly installed below the fixed plate (5) by a fixed rod (22). The upper end of the fixed piston (2) is provided with a sealing cylinder (21) that matches the inner wall of the filling tube (1). The filling tube (1) has an outlet (11) at its lower end and a first check valve (12). The lower part of the side wall of the filling tube (1) is connected to an inlet tube (3) above the outlet (11). The inlet tube (3) is equipped with a second check valve (31). The other end of the inlet tube (3) is connected to a liquid supply device.
2. The ink filling mechanism according to claim 1, characterized in that, The planar transfer mechanism (4) includes a mounting plate (41), a rodless cylinder (42) horizontally arranged on the mounting plate (41), a sliding plate (44) connected to the sliding end (421) of the rodless cylinder (42), and a second cylinder (45) vertically arranged on the sliding plate (44), wherein the telescopic end of the second cylinder (45) is fixedly connected to the fixing plate (5).
3. The ink filling mechanism according to claim 2, characterized in that, The mounting plate (41) is also provided with a guide rod (43) parallel to the rodless cylinder (42). Multiple sliding sleeves (431) are slidably arranged on the guide rod (43), and the sliding sleeves (431) are all fixedly connected to the slide plate (44).
4. The ink filling mechanism according to claim 2, characterized in that, The front side of the slide plate (44) is vertically fixed with multiple slide rails (46), and each slide rail (46) is slidably mounted with a slider (461). The sliders (461) are all fixedly mounted on the rear side of the fixed plate (5).
5. The ink filling mechanism according to claim 1, characterized in that, A stabilizing rod (131) extends from the telescopic end of the first cylinder (13), and the stabilizing rod (131) is provided with multiple fixing collars and is fitted on the outside of the filling tube (1).