A vacuum filling machine for double-pointed ampoules

Abstract

This invention discloses a vacuum filling machine for double-pointed ampoules. Its structure includes a liquid storage tank and a fixing rod. The top of the liquid storage tank is sealed with a plug, and the plug has four air inlet pipes. Each of the four air inlet pipes is equipped with a vacuum valve, a vent valve, a pressurizing valve, and a replenishment pump. One end of the fixing rod is rotatably connected to the inside of the liquid storage tank and extends to the outside of the tank. The other end of the fixing rod has an elastic clamping groove located inside the liquid storage tank. Two positioning plates are located at the bottom of the elastic clamping groove, and a clearance groove for the double-pointed ampoule to rotate is formed between the two positioning plates. The liquid storage tank is equipped with a driving component that slowly rotates the fixing rod. This invention achieves automatic filling of double-pointed ampoules and ensures that the amount of liquid flowing back into the double-pointed ampoule remains consistent.

Description

Technical Field

[0001] This invention relates to the field of pharmaceutical bottle filling equipment production technology, and more specifically, to a vacuum filling machine for double-pointed ampoules. Background Technology

[0002] Double-pointed ampoules are bottles with a relatively thick body and pointed tips at both ends. When filling these bottles with medication, the narrow opening at the tips makes it easy for the medication to clog the tips and flow down the body. Currently, filling double-pointed ampoules is physically demanding for employees, requiring them to shake the ampoules back and forth to dislodge the medication from the tips, significantly impacting filling efficiency. Furthermore, the difficulty in dispensing the medication to the body makes it difficult to control the amount of liquid filled, often requiring multiple adjustments and wasting time. Even with these adjustments, the final amount of liquid filled in different double-pointed ampoules can vary.

[0003] In summary, the purpose of this invention is to develop an automatic filling device for double-pointed ampoules, which can ensure that the liquid volume filled into each double-pointed ampoule remains consistent. Summary of the Invention

[0004] To overcome the above-mentioned defects of the prior art, embodiments of the present invention provide a vacuum filling machine for double-pointed ampoules.

[0005] To achieve the above objectives, the innovative aspects of this invention are as follows: its structure includes a liquid storage tank and a fixing rod. The top of the liquid storage tank is sealed with a sealing plug, and the sealing plug is provided with four air inlet pipes. The four air inlet pipes are respectively provided with a vacuum valve, a venting valve, a pressurizing valve, and a replenishment pump. One end of the fixing rod is rotatably connected to the inside of the liquid storage tank and extends to the outside of the liquid storage tank. The other end of the fixing rod is provided with an elastic clamping groove located inside the liquid storage tank. The bottom of the elastic clamping groove is provided with two positioning plates, and a clearance groove for the rotation of the double-pointed ampoule is formed between the two positioning plates. The liquid storage tank is provided with a driving component that drives the fixing rod to rotate slowly.

[0006] Furthermore, the aforementioned driving component includes a rotary motor and a reducer fixed to the outside of the liquid storage tank. The rotary motor and the reducer are connected. A connecting gear is provided at the end of the fixed rod. A drive gear is provided at the output end of the reducer. A belt connects the drive gear and the connecting gear.

[0007] Furthermore, the aforementioned elastic clamping groove includes two clamping plates and a buffer spring. The end of the fixing rod is provided with a rotatable shaft. The center position of the two clamping plates is rotatably connected to the shaft. The openings between the two clamping plates are respectively designated as a clamping opening and an opening. Both the upper and lower ends of the buffer spring are provided with connecting rods. The two connecting rods are respectively connected to the upper and lower surfaces of the opening. Each clamping plate is provided with an arc-shaped groove. The two arc-shaped grooves are located opposite each other inside the clamping opening. The initial diameter between the two arc-shaped grooves is smaller than the diameter of the double-pointed ampoule body.

[0008] Furthermore, a rubber pad is provided inside the aforementioned arc-shaped groove.

[0009] Furthermore, the bottom of the aforementioned elastic clamping groove is provided with two parallel side plates, and the positioning plate is arc-shaped on the top of the side plates. The arc surface of the positioning plate protrudes upward, and an avoidance groove is formed between the two side plates.

[0010] Furthermore, the interior of the aforementioned side plate is hollow, and an upward-extending liquid outlet is provided on the side plate.

[0011] The technical effects and advantages of this invention are as follows: During each filling process of the double-pointed ampoule, the replenishment pump continuously adds liquid to the inside of the storage tank, ensuring that the water level inside the storage tank remains at the same level. Simultaneously, the clamping position of the double-pointed ampoule on the elastic clamping groove is consistent each time, ensuring that the height to which the ampoule opening is immersed in the liquid is consistent. Since the ampoule opening is consistently immersed and the water level inside the storage tank remains consistent, this guarantees a consistent water pressure at the ampoule opening. Furthermore, the negative pressure value used for each filling process is also consistent, ensuring that the amount of liquid flowing back into the ampoule remains consistent. Attached Figure Description

[0012] Figure 1 This is a front view of the present invention.

[0013] Figure 2 This is a top structural diagram of the elastic clamping groove of the present invention.

[0014] Figure 3 This is a cross-sectional view of the side plate of the present invention. Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] like Figures 1 to 3In one specific embodiment of the present invention, the structure includes a liquid storage tank 1 and a fixing rod 2. The top of the liquid storage tank 1 is sealed with a sealing plug 11, and the sealing plug 11 is provided with four air inlet pipes 12. The four air inlet pipes 12 are respectively provided with a vacuum valve 13, a venting valve 14, a pressurizing valve 15, and a replenishing pump 16. One end of the fixing rod 2 is rotatably connected to the inside of the liquid storage tank 1 and extends to the outside of the liquid storage tank 1. The other end of the fixing rod 2 is provided with an elastic clamping groove 3 and is located inside the liquid storage tank 1. The bottom of the elastic clamping groove 3 is provided with two positioning plates 17. A clearance groove 18 for rotating the double-pointed ampoule 7 is formed between the two positioning plates 17. The liquid storage tank 1 is provided with a driving member 4 that drives the fixing rod 2 to rotate slowly.

[0017] In this invention, the working principle of filling the double-pointed ampoule 7 is as follows: First, the double-pointed ampoule 7 is clamped in the elastic clamping groove 3, with the opening of the double-pointed ampoule 7 facing downwards. The positioning plate 17 abuts against the connection between the body and the tip of the double-pointed ampoule 7, thus positioning the double-pointed ampoule 7 in the elastic clamping groove 3. Then, the sealing plug 11 seals the top of the liquid storage tank 1, and the vacuum valve 13 is opened. Under negative pressure, the liquid inside the liquid storage tank 1 flows back into the interior of the double-pointed ampoule 7. Then, the driving mechanism is opened. 4. The tip of the double-pointed ampoule 7 passes through the clearance groove 18 and flips over, with the opening of the double-pointed ampoule 7 facing upwards. The venting valve 14 is opened to restore the pressure inside the liquid storage tank 1 to its original state. Finally, the pressurizing valve 15 is opened. Under positive pressure, the liquid at the tip of the double-pointed ampoule 7 is forced into the body of the double-pointed ampoule 7. The entire process completes the automatic filling of the double-pointed ampoule 7. During the filling process of the double-pointed ampoule 7, the liquid is continuously added to the liquid storage tank 1 through the replenishment pump 16 to ensure that the liquid inside the liquid storage tank 1 is sufficient.

[0018] In this invention, during each filling process of the double-pointed ampoule 7, the replenishment pump 16 continuously adds liquid to the inside of the liquid storage tank 1 to ensure that the water level inside the liquid storage tank 1 is always kept at the same level. At the same time, the clamping position of the double-pointed ampoule 7 on the elastic clamping groove 3 is consistent each time, so that the height of the mouth of the double-pointed ampoule 7 immersed in the liquid is consistent. Since the height of the mouth of the double-pointed ampoule 7 immersed in the liquid is consistent and the water level inside the liquid storage tank 1 is consistent, the water pressure at the mouth of the double-pointed ampoule 7 is consistent. Furthermore, the negative pressure value used for filling the double-pointed ampoule 7 is also consistent each time, ensuring that the amount of liquid flowing back into the double-pointed ampoule 7 is also consistent.

[0019] In this invention, as a preferred embodiment, the aforementioned driving component 4 includes a rotary motor 41 and a reducer 42 fixed to the outside of the liquid storage tank 1. The rotary motor 41 and the reducer 42 are connected. The end of the fixed rod 2 is provided with a connecting gear 5. The output end of the reducer 42 is provided with a driving gear 51. A belt 52 is connected between the driving gear 51 and the connecting gear 5.

[0020] In this invention, the rotation of the fixed rod 2 is powered by a rotary motor 41. The output speed of the rotary motor 41 is slowed down by the action of the reducer 42, thereby slowing down the speed of the drive gear 51. Then, through the transmission of the belt 52, the connecting gear 5 is driven to rotate slowly, and finally the fixed rod 2 is driven to rotate.

[0021] In this invention, as a preferred embodiment, the elastic clamping groove 3 includes two clamping plates 31 and a buffer spring 32. The end of the fixing rod 2 is provided with a rotatable shaft 53. The center position of the two clamping plates 31 is rotatably connected to the shaft 53. The openings between the two clamping plates 31 are respectively provided as a clamping opening 54 and an opening 55. Both the upper and lower ends of the buffer spring 32 are provided with connecting rods 56. The two connecting rods 56 are respectively connected to the upper and lower sides of the opening 55. Each clamping plate 31 is provided with an arc-shaped groove 57. The two arc-shaped grooves 57 are located opposite each other inside the clamping opening 54. The initial diameter between the two arc-shaped grooves 57 is smaller than the diameter of the body of the double-pointed ampoule 7.

[0022] In this invention, the tip of the double-pointed ampoule 7 is first aligned with the two arc-shaped grooves 57. As the double-pointed ampoule 7 is inserted downwards, the body of the double-pointed ampoule 7 gradually fits between the two arc-shaped grooves 57. Since the diameter between the two arc-shaped grooves 57 is smaller than the diameter of the body of the double-pointed ampoule 7, the body of the double-pointed ampoule 7 will open the two arc-shaped grooves 57, and the buffer spring 32 inside the opening 55 will be compressed. Under the elastic action of the buffer spring 32, the body of the double-pointed ampoule 7 is clamped between the two arc-shaped grooves 57.

[0023] In this invention, as a preferred embodiment, the interior of the aforementioned arc-shaped groove 57 is provided with a rubber pad.

[0024] In this invention, the rubber pad increases the friction between the body of the double-pointed ampoule 7 and the arc-shaped groove 57, thereby ensuring that the two arc-shaped grooves 57 can clamp the double-pointed ampoule 7.

[0025] In this invention, as a preferred embodiment, the bottom of the elastic clamping groove 3 is provided with two parallel side plates 6, the positioning plate 17 is arc-shaped on the top of the side plate 6, the arc surface of the positioning plate 17 protrudes upward, and an avoidance groove 18 is formed between the two side plates 6.

[0026] In this invention, when the double-pointed ampoule 7 is clamped inside the elastic clamping groove 3, the connection between the body and the tip of the double-pointed ampoule 7 abuts against the arc-shaped protrusion of the positioning plate 17. The arc-shaped protrusion of the positioning plate 17 is upward, which can avoid the position of the double-pointed ampoule 7 when the double-pointed ampoule 7 rotates, thereby preventing the positioning plate 17 from jamming the rotating double-pointed ampoule 7.

[0027] In this invention, as a preferred embodiment, the interior of the side plate 6 is hollow, and an upward-extending liquid outlet 61 is provided on the side plate 6.

[0028] In this invention, the inside of the side plate 6 is hollow, and the liquid will also fill the inside of the side plate 6. When the liquid flows back into the opening of the double-pointed ampoule 7, the liquid inside the side plate 6 will also flow into the inside of the double-pointed ampoule 7, ensuring that there is sufficient liquid backflow around the opening of the double-pointed ampoule 7. The direction of the outlet 61 can facilitate the flow of liquid from the inside of the side plate 6 into the inside of the double-pointed ampoule 7.

[0029] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0030] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0031] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vacuum filling machine for double-pointed ampoules, characterized in that: Its structure includes a liquid storage tank (1) and a fixing rod (2). The top of the liquid storage tank (1) is sealed with a sealing plug (11). The sealing plug (11) is provided with four air inlet pipes (12). The four air inlet pipes (12) are respectively provided with a vacuum valve (13), a venting valve (14), a pressurizing valve (15), and a replenishing pump (16). One end of the fixing rod (2) is rotatably connected to the inside of the liquid storage tank (1) and extends to the outside of the liquid storage tank (1). The other end of the fixing rod (2) is provided with an elastic clamping groove (3) for clamping a double-pointed ampoule (7) and is located inside the liquid storage tank (1). The bottom of the elastic clamping groove (3) is provided with two positioning plates (17). A clearance groove (18) for the double-pointed ampoule (7) to rotate is formed between the two positioning plates (17). The liquid storage tank (1) is provided with a driving component (4) that drives the fixing rod (2) to rotate slowly.

2. The vacuum filling machine for double-pointed ampoules according to claim 1, characterized in that: The driving component (4) includes a rotary motor (41) and a reducer (42) fixed to the outside of the liquid storage tank (1). The rotary motor (41) and the reducer (42) are connected. The end of the fixed rod (2) is provided with a connecting gear (5). The output end of the reducer (42) is provided with a driving gear (51). A belt (52) is connected between the driving gear (51) and the connecting gear (5).

3. The vacuum filling machine for double-pointed ampoules according to claim 1, characterized in that: The elastic clamping groove (3) includes two clamping plates (31) and a buffer spring (32). The end of the fixed rod (2) is provided with a rotatable shaft (53). The center position of the two clamping plates (31) is rotatably connected to the shaft (53). The openings between the two clamping plates (31) are respectively set as a clamping opening (54) and an opening (55). The upper and lower ends of the buffer spring (32) are provided with connecting rods (56). The two connecting rods (56) are respectively connected to the upper and lower sides of the opening (55). The clamping plates (31) are provided with arc-shaped grooves (57). The two arc-shaped grooves (57) are located opposite each other inside the clamping opening (54). The initial diameter between the two arc-shaped grooves (57) is smaller than the diameter of the body of the double-pointed ampoule (7).

4. The vacuum filling machine for double-pointed ampoules according to claim 3, characterized in that: The inside of the arc-shaped groove (57) is provided with a rubber pad.

5. The vacuum filling machine for double-pointed ampoules according to claim 1, characterized in that: The bottom of the elastic clamping groove (3) is provided with two parallel side plates (6), and the positioning plate (17) is arc-shaped on the top of the side plate (6). The arc surface of the positioning plate (17) protrudes upward, and the clearance groove (18) is formed between the two side plates (6).

6. The vacuum filling machine for double-pointed ampoules according to claim 5, characterized in that: The interior of the side plate (6) is hollow, and an outlet (61) extending upward is provided on the side plate (6).

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