Negative pressure filling machine for oral liquid bottle

By designing the conveyor frame and filling rod structure of the negative pressure filling machine, the problem of low filling efficiency for bottles of different sizes was solved, and a high-efficiency and stable filling process was achieved.

CN224185838UActive Publication Date: 2026-05-01NANJING DAILY NUTRITION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING DAILY NUTRITION TECH CO LTD
Filing Date
2025-04-28
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing filling machines cannot adjust the distance of the filling mechanism according to different bottle sizes, resulting in low filling efficiency.

Method used

A negative pressure filling machine for oral liquid bottles was designed. Through the combination structure of conveyor frame, side plate, cylinder and filling rod, the machine can limit the bottles of different diameters and adjust the distance of the filling rod. Combined with the use of cylinder and pressing block, it can achieve efficient filling.

Benefits of technology

It improves filling efficiency, can adapt to the filling needs of bottles of different sizes, prevents bottles from tilting, and prevents liquid leakage through a sealing ring.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224185838U_ABST
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Abstract

The utility model discloses a negative pressure filling machine for oral liquid bottles, which relates to the technical field of oral liquid filling, and comprises a conveying frame, a filling barrel is arranged at the rear end of the conveying frame, a mounting plate is arranged above the conveying frame, a buffer box is arranged between two groups of fixing rods, a connecting plate is arranged below the mounting plate, and the connecting plate is connected with the filling barrel. A plurality of groups of filling rods are arranged in the mounting groove, a plurality of groups of springs are arranged on the inner walls of the front end and the rear end of each filling rod, protective plates are arranged at the front end and the rear end of each filling rod, and pressing blocks are arranged between the protective plates and the filling rods. According to the negative pressure filling machine for the oral liquid bottles, the oral liquid bottles are conveyed through the arranged conveying frame, inclination of the oral liquid bottles is prevented through the arranged two sets of side plates, the arranged third air cylinder pushes the pressing plate to press oral liquid in the filling barrel into the temporary storage box, and filling is conducted through the arranged multiple sets of filling rods.
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Description

A negative pressure filling machine for oral liquid bottles Technical Field

[0001] This utility model relates to the field of oral liquid filling technology, and in particular to a negative pressure filling machine for oral liquid bottles. Background Technology

[0002] With the increasing demand for health products, the market size of oral liquid products continues to expand. Whether it is various health oral liquids in the pharmaceutical field or functional beverages in the food and beverage industry, their output is constantly increasing, which puts forward higher requirements for the filling efficiency and quality of oral liquid bottles.

[0003] Existing filling machines have limitations in efficiency due to the varying distances between bottles of different sizes. This makes it impossible for staff to adjust the distance between filling mechanisms, forcing them to fill bottles one by one, which negatively impacts user experience. To address these shortcomings, we propose a negative pressure filling machine for oral liquid bottles. Summary of the Invention

[0004] The main objective of this invention is to provide a negative pressure filling machine for oral liquid bottles, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A negative pressure filling machine for oral liquid bottles includes a conveyor frame, an mounting plate above the conveyor frame, a second cylinder on the upper outer surface of the mounting plate, two sets of fixing rods symmetrically arranged between the mounting plate and the conveyor frame, a buffer box between the two sets of fixing rods, a connecting plate below the mounting plate, an installation groove below the connecting plate, sliding grooves symmetrically arranged on both inner walls of the installation groove, multiple sets of filling rods inside the installation groove, multiple sets of springs on the inner walls of the front and rear ends of each filling rod, protective plates at the front and rear ends of each filling rod, a pressing block between the protective plate and the filling rod, and a protrusion groove on one side of the protective plate.

[0007] Preferably, multiple sets of fixing blocks are symmetrically arranged on both sides of the conveyor frame. A slider is provided on the outer side of each set of fixing blocks. A column is provided on one side of each set of sliders. A pin is provided between the column and the slider. A first cylinder is provided on one side of each set of columns. Two sets of side plates are symmetrically arranged on the top of the conveyor frame. A filling barrel is provided at the rear end of the conveyor frame. A fixed bracket is provided at the rear end of the filling barrel. A motor is provided on the upper outer surface of the fixed bracket. A sliding base is provided on the inner side of the fixed bracket. A transmission rod is provided at the rotor end of the motor. The transmission rod passes through the inner wall of the sliding base. A cover plate is provided below the front end of the sliding base. A third cylinder is provided on the upper outer surface of the cover plate. A pressure plate is provided below the cover plate. The upper outer surface of the pressure plate is connected to the telescopic end of the third cylinder. A sealing ring is provided on the lower outer side of the pressure plate.

[0008] Preferably, the mounting plate is fixedly mounted above the conveyor frame by a set fixing rod, the second cylinder is detachably mounted on the upper outer surface of the mounting plate, and the buffer box is horizontally welded between the two sets of fixing rods.

[0009] Preferably, the connecting plate is detachably installed below the mounting plate, the mounting groove is horizontally welded to the bottom of the connecting plate, the protective plate is detachably connected to the filling rod, the filling rod is detachably installed inside the mounting groove, and the pressing block is detachably installed between the protective plate and the filling rod.

[0010] Preferably, multiple sets of the fixing blocks are welded and fixed on both sides of the conveyor frame, the slider is detachably installed on the outside of the fixing blocks, the column is detachably connected to the slider through a set pin, and the side plate is detachably installed on the telescopic end of the first cylinder.

[0011] Preferably, the motor is detachably mounted on the upper outer surface of the fixed bracket, the transmission rod is detachably mounted on the rotor end of the motor, the sliding base is threadedly connected to the transmission rod, the cover plate is detachably mounted below the front end of the sliding base, the pressure plate is detachably mounted on the telescopic end of the third cylinder, and the sealing ring is detachably mounted on the outside of the pressure plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. In this utility model, the oral liquid bottle is transported by a conveyor frame, and the side plates prevent it from tilting. At the same time, the pins allow the staff to adjust the height of the two sets of side plates according to the height of the bottle. The first cylinder can adjust the distance between the two sets of side plates, thereby limiting the position of bottles of the same diameter.

[0014] 2. In this utility model, the third cylinder pushes the pressure plate to transport the oral liquid inside the filling barrel to the inside of the buffer box, and the oral liquid is filled into the oral liquid bottle by multiple sets of filling rods. Pressing the pressing block separates it from the mounting groove, thereby controlling the sliding of the filling rods inside the mounting groove and adjusting the distance between the multiple sets of filling rods to improve filling efficiency. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 is a schematic diagram of the connection structure between the connecting plate and the mounting plate of this utility model;

[0017] Figure 3 is a schematic diagram of the filling rod structure of this utility model;

[0018] Figure 4 is a schematic diagram of the filling barrel structure of this utility model;

[0019] Figure 5 is a schematic diagram of the connection structure between the pressure plate and the cover plate of this utility model.

[0020] In the diagram: 1. Conveyor frame; 2. Fixing block; 3. Sliding block; 4. Column; 5. Side plate; 6. First cylinder; 7. Pin; 8. Mounting plate; 9. Fixing rod; 10. Buffer box; 11. Second cylinder; 12. Connecting plate; 13. Mounting groove; 14. Slide groove; 15. Filling rod; 16. Spring; 17. Pressing block; 18. Protective plate; 19. Protrusion; 20. Filling barrel; 21. Cover plate; 22. Fixing bracket; 23. Motor; 24. Sliding base; 25. Pressure plate; 26. Sealing ring; 27. Transmission rod; 28. Third cylinder. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Example 1, as shown in Figures 1-5, describes a negative pressure filling machine for oral liquid bottles, including a conveyor frame 1. Workers use existing conveying equipment to transport oral liquid bottles at equal intervals to the top of the conveyor frame 1. A thick hose connects the filling barrel 20 to the buffer tank 10, and thin hoses connect multiple filling rods 15 to the buffer tank 10. When the oral liquid bottle moves below the filling rod 15, the conveyor frame 1 stops conveying, and a third cylinder 28 is activated. This cylinder pushes the pressure plate 25 downwards, forcing the oral liquid inside the filling barrel 20 into the buffer tank 10. At this time, a second cylinder 11 is activated, pushing the connecting plate 12 downwards, positioning the filling head below the filling rod 15 above the corresponding oral liquid bottle opening. During continuous pressing by the pressure plate 25, the oral liquid inside the buffer tank 10 is diverted into the multiple filling rods 15, completing the filling process.

[0023] Example 2, as shown in Figures 1-5, describes a negative pressure filling machine for oral liquid bottles. Due to the different specifications of the oral liquid bottles, the distance between the bottles varies. In this case, the operator needs to adjust the filling rod 15 by manually pressing two sets of pressing blocks 17. During the pressing process, the spring 16 is squeezed. When the appropriate position is reached, the pressing blocks 17 separate from the inner wall of the mounting groove 13. At this time, the operator can manually control the filling rod 15 to slide inside the mounting groove 13. After adjusting to the appropriate position, the two sets of pressing blocks 17 are released. Under the action of the spring 16, the pressing blocks 17 are pushed to contact the inner wall of the mounting groove 13, thereby limiting their movement.

[0024] It should be noted that this utility model is a negative pressure filling machine for oral liquid bottles. During use, when the conveyor frame 1 transports the oral liquid bottles, the operator can adjust the height of the two sets of side plates 5 according to the bottle height using the provided pins 7, ensuring they are in the appropriate position. Simultaneously, multiple sets of first cylinders 6 push the two sets of side plates 5 to move relative to each other, limiting the movement of oral liquid bottles of different diameters and preventing tilting during transport. The operator connects the filling barrel 20 to the buffer tank 10 using a hose, and connects multiple sets of filling rods 15 to the buffer tank 10. When the third cylinder 28 pushes the pressure plate 25 to transport the oral liquid inside the filling barrel 20 into the buffer tank 10, the provided sealing ring 26 effectively seals the pressure plate 25, preventing leakage of the oral liquid. The operator can observe the amount of oral liquid stored by observing the level gauge on the outside of the filling barrel 20. When adding liquid, the motor 23 is started, controlling the transmission rod 27. Rotating the pump causes the sliding base 24 and cover plate 21 to move upwards until the pressure plate 25 separates from the inside of the filling barrel 20. At this point, oral liquid can be added into the filling barrel 20. When assembling the filling rod 15, the operator places multiple sets of springs 16 evenly in the inner wall of the filling rod 15. Then, one side of the pressing block 17 abuts against the spring 16, and the pressing block 17 passes through the inner wall of the groove 19 and the protective plate 18. It is then connected to the filling rod 15 using fixing screws. When the operator needs to adjust the distance between the filling rods 15, the pressing block 17 is pressed to squeeze the spring 16. At this point, the pressing block 17 separates from the inner wall of the mounting groove 13. The operator can then manually move the filling rod 15 until it reaches the appropriate position. After that, the pressing block 17 is released. Under the action of the spring 16, the pressing block 17 is pushed to contact the mounting groove 13. At this point, the friction between the two is large, which can limit the filling rod 15 and improve the filling efficiency.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A negative pressure filling machine for oral liquid bottles, comprising a conveyor frame (1), characterized in that: An mounting plate (8) is provided above the conveyor frame (1). A second cylinder (11) is provided on the upper outer surface of the mounting plate (8). Two sets of fixing rods (9) are symmetrically arranged between the mounting plate (8) and the conveyor frame (1). A buffer box (10) is provided between the two sets of fixing rods (9). A connecting plate (12) is provided below the mounting plate (8). An installation groove (13) is provided below the connecting plate (12). Sliding grooves (14) are symmetrically arranged on the inner walls of both sides of the installation groove (13). Multiple sets of filling rods (15) are provided inside the installation groove (13). Multiple sets of springs (16) are provided on the inner walls of the front and rear ends of the filling rods (15). Protective plates (18) are provided on the front and rear ends of the filling rods (15). A pressing block (17) is provided between the protective plate (18) and the filling rods (15). A protrusion (19) is provided on one side of the protective plate (18).

2. The negative pressure filling machine for oral liquid bottles according to claim 1, characterized in that: The conveyor frame (1) has multiple sets of fixing blocks (2) symmetrically arranged on both sides. Each set of fixing blocks (2) has a slider (3) on its outer side. Each set of sliders (3) has a column (4) on one side. A pin (7) is provided between the column (4) and the slider (3). Each set of columns (4) has a first cylinder (6) on one side. The conveyor frame (1) has two sets of side plates (5) symmetrically arranged on its upper side. The conveyor frame (1) has a filling barrel (20) at its rear end. The filling barrel (20) has a fixing bracket (22) at its rear end. The upper outer surface of the fixing bracket (22) is provided with... A motor (23) is provided. A sliding base (24) is provided on the inner side of the fixed bracket (22). A transmission rod (27) is provided at the rotor end of the motor (23). The transmission rod (27) passes through the inner wall of the sliding base (24). A cover plate (21) is provided below the front end of the sliding base (24). A third cylinder (28) is provided on the upper outer surface of the cover plate (21). A pressure plate (25) is provided below the cover plate (21). The upper outer surface of the pressure plate (25) is connected to the telescopic end of the third cylinder (28). A sealing ring (26) is provided on the lower outer side of the pressure plate (25).

3. The negative pressure filling machine for oral liquid bottles according to claim 1, characterized in that: The mounting plate (8) is fixedly mounted above the conveyor frame (1) by the fixed rods (9). The second cylinder (11) is detachably mounted on the upper outer surface of the mounting plate (8). The buffer box (10) is horizontally welded between the two sets of fixed rods (9).

4. The negative pressure filling machine for oral liquid bottles according to claim 1, characterized in that: The connecting plate (12) is detachably installed below the mounting plate (8), the mounting groove (13) is horizontally welded below the connecting plate (12), the protective plate (18) is detachably connected to the filling rod (15), the filling rod (15) is detachably installed inside the mounting groove (13), and the pressing block (17) is detachably installed between the protective plate (18) and the filling rod (15).

5. A negative pressure filling machine for oral liquid bottles according to claim 2, characterized in that: Multiple sets of the fixing blocks (2) are welded and fixed on both sides of the conveyor frame (1). The slider (3) is detachably installed on the outside of the fixing block (2). The column (4) is detachably connected to the slider (3) through the provided pin (7). The side plate (5) is detachably installed on the telescopic end of the first cylinder (6).

6. The negative pressure filling machine for oral liquid bottles according to claim 2, characterized in that: The motor (23) is detachably mounted on the upper outer surface of the fixed bracket (22), the transmission rod (27) is detachably mounted on the rotor end of the motor (23), the sliding base (24) is threadedly connected to the transmission rod (27), the cover plate (21) is detachably mounted below the front end of the sliding base (24), the pressure plate (25) is detachably mounted on the telescopic end of the third cylinder (28), and the sealing ring (26) is detachably mounted on the outside of the pressure plate (25).