Ampoule bottle bottom forming device

Abstract

The invention provides an ampoule bottle bottom forming device which comprises a bottom forming assembly, the bottom forming assembly comprises a rack structure, a heating structure and a conveying structure, the conveying structure is connected with the rack structure, an ampoule bottle to be processed is arranged on the conveying structure, and the heating structure corresponds to the conveying structure and faces a bottom forming area of the ampoule bottle to be processed; the spraying assembly is arranged on the side, away from the feeding end of the conveying structure, of the heating structure, and the spraying assembly corresponds to a bottle opening of the ampoule bottle to be machined; an acid solution is contained in the liquid supply assembly, and the liquid supply assembly is connected with the spraying assembly. According to the technical scheme, the problem that in the prior art, in the ampoule bottle bottom forming process, alkaline matter is separated out, and consequently the water resistance of an ampoule bottle is poor is effectively solved.

Description

Technical Field

[0001] This application relates to the technical field of ampoule bottle processing, and more particularly to an ampoule bottle bottom forming device. Background Technology

[0002] Ampoules are widely used in the medical industry due to their advantages such as good sealing and high chemical inertness.

[0003] Currently, in China, the bottom-sealing process for horizontal ampoule machines involves melting and breaking the semi-finished ampoule assembly using a high-temperature flame generated by burning gas and oxygen, achieving a one-time bottom sealing. After the ampoules are manufactured, they undergo annealing and pass quality inspections, followed by automatic and manual checks. Qualified products are then packaged and stored.

[0004] When sealing the bottom of a semi-finished ampoule through flame melting, alkaline metal oxides will precipitate on the inner wall of the ampoule. The precipitation of alkali will reduce the water resistance of the inner surface of the ampoule. The higher the temperature of the melting flame, the more alkali will precipitate, and the lower the water resistance of the inner surface of the ampoule will be, as shown in CN220684971U. Summary of the Invention

[0005] One of the technical problems this application aims to solve is the problem of poor water resistance of ampoules caused by the precipitation of alkaline substances during the ampoule bottom forming process.

[0006] To solve the above-mentioned technical problems, this application provides an ampoule bottom forming device.

[0007] An ampoule bottom forming device according to this application includes: a bottom forming assembly, which includes a frame structure, a heating structure, and a conveying structure. The conveying structure is connected to the frame structure, and the ampoule to be processed is placed on the conveying structure. The heating structure is correspondingly arranged to the conveying structure and faces the bottom forming area of ​​the ampoule to be processed; a spraying assembly, which is arranged on the side of the heating structure away from the feeding end of the conveying structure, and is correspondingly arranged to the mouth of the ampoule to be processed; and a liquid supply assembly, which contains an acidic solution and is connected to the spraying assembly.

[0008] In some embodiments, the spray assembly includes a nozzle structure and a horizontal drive structure, the horizontal drive structure being connected to the frame structure, and the nozzle structure being connected to the output end of the horizontal drive structure.

[0009] In some embodiments, the liquid supply assembly further includes a liquid storage tank structure and an air source structure. The liquid storage tank structure includes a liquid storage tank and a liquid outlet hose. The first end of the liquid outlet hose is connected to the liquid outlet of the liquid storage tank, and the second end of the liquid outlet hose is connected to the nozzle structure. The air source structure is connected to the air inlet of the liquid storage tank.

[0010] In some embodiments, the gas source structure includes a gas source and a gas outlet pipeline. The first end of the gas outlet pipeline is connected to the gas source, and the second end of the gas outlet pipeline has a first branch and a second branch. The first branch is connected to a liquid storage tank, and the horizontal drive structure is a cylinder. The second branch is connected to the cylinder.

[0011] In some embodiments, the spray assembly further includes a sensing structure and a control structure, the sensing structure being configured correspondingly to the horizontal drive structure, the sensing structure including a first signal line connected to the control structure.

[0012] In some embodiments, the control structure includes multiple power lines, a first valve is provided on the liquid outlet hose, a second valve is provided on the second branch, and the multiple power lines are respectively connected to the first valve and the second valve.

[0013] In some embodiments, the conveying structure includes a plurality of conveying rollers rotatably connected to the frame structure, and the heating structure includes a plurality of heating structures disposed between adjacent conveying rollers, wherein the height of the heating structures in the vertical direction is lower than the height of the conveying rollers in the vertical direction.

[0014] In some embodiments, the bottom forming assembly further includes a pressure roller structure and a mounting base structure, the pressure roller structure being connected to the mounting base structure and located on the side of the conveying structure away from the heating structure.

[0015] In some embodiments, there is a predetermined angle between the axis of the pressure roller structure and the axis of the conveying roller.

[0016] In some embodiments, both the mounting base structure and the pressure roller structure include two sets, with the two sets of mounting base structures and the two sets of pressure roller structures symmetrically arranged on both sides of the conveying structure.

[0017] Through the above technical solution, the ampoule bottom forming device provided in this application has a conveying structure that transports the ampoule to be processed to a heating structure. The heating structure heats the ampoule, melting the glass and forming the bottom of the ampoule. During the heating and melting process, alkaline metal compounds precipitate on the inner surface of the ampoule under high temperature. An acidic liquid is sprayed into the ampoule by a spraying component to neutralize the alkaline substances, preventing excessive alkaline substances from causing poor water resistance. The technical solution of this application effectively solves the problem of poor water resistance of ampoules caused by the precipitation of alkaline substances during the ampoule bottom forming process in the prior art. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a top view of the ampoule bottom forming apparatus disclosed in Embodiment 1 of this application;

[0020] Figure 2 It shows Figure 1 A schematic diagram of the main structure of the ampoule bottle bottom forming device;

[0021] Figure 3 It shows Figure 1 A schematic diagram of the left-hand structure of the ampoule bottom forming device;

[0022] Figure 4 It shows Figure 1 A top view of the spray assembly of the ampoule bottom forming device;

[0023] Figure 5 It shows Figure 1 A schematic diagram of the spray assembly of the ampoule bottom forming device from the left side;

[0024] Figure 6 It shows Figure 1 A schematic diagram of the liquid supply component of the ampoule bottom forming device.

[0025] Explanation of reference numerals in the attached figures:

[0026] 10. Bottom forming assembly; 11. Frame structure; 12. Heating structure; 13. Conveying structure; 131. Conveying roller; 14. Pressure roller structure; 15. Mounting base structure; 20. Spray assembly; 21. Nozzle structure; 22. Horizontal drive structure; 23. Sensing structure; 231. First signal line; 24. Control structure; 241. Power line; 30. Liquid supply assembly; 31. Liquid storage tank structure; 311. Liquid storage tank; 312. Liquid outlet hose; 32. Air source structure; 321. Air source; 322. Air outlet pipeline; 3221. First branch; 3222. Second branch. Detailed Implementation

[0027] The embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application. This application can be implemented in many different forms and is not limited to the specific embodiments of the application herein, but includes all technical solutions falling within the scope of the claims.

[0028] These embodiments are provided to make the application thorough and complete, and to fully express the scope of the application to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​illustrated in these embodiments should be interpreted as merely exemplary and not as limiting.

[0029] It should be noted that, in the description of this application, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0030] Furthermore, the terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well.

[0031] It should also be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0032] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0033] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0034] like Figures 1 to 6 As shown, the ampoule bottom forming apparatus disclosed in Embodiment 1 of this application includes: a bottom forming component 10, a spraying component 20, and a liquid supply component 30. The bottom forming component 10 includes a frame structure 11, a heating structure 12, and a conveying structure 13. The conveying structure 13 is connected to the frame structure 11. The ampoule to be processed is placed on the conveying structure 13. The heating structure 12 is correspondingly arranged with the conveying structure 13 and is arranged facing the bottom forming area of ​​the ampoule to be processed. The spraying component 20 is arranged on the side of the heating structure 12 away from the feeding end of the conveying structure 13. The spraying component 20 is correspondingly arranged with the mouth of the ampoule to be processed. The liquid supply component 30 contains an acidic solution and is connected to the spraying component 20.

[0035] Using the technical solution of Embodiment 1, the conveying structure 13 conveys the ampoule to be processed to the heating structure 12. The heating structure 12 heats the ampoule, melting the glass and forming the bottom of the ampoule. During the melting process, alkaline metal compounds precipitate on the inner surface of the ampoule under high temperature. The spraying component 20 sprays an acidic liquid into the ampoule to neutralize the alkaline substances, preventing excessive alkaline substances from causing poor water resistance. The technical solution of Embodiment 1 effectively solves the problem of poor water resistance of ampoules caused by the precipitation of alkaline substances during the ampoule bottom forming process in the prior art.

[0036] like Figures 1 to 5 As shown, in the technical solution of Embodiment 1, the spray assembly 20 includes a nozzle structure 21 and a horizontal drive structure 22. The horizontal drive structure 22 is connected to the frame structure 11, and the nozzle structure 21 is connected to the output end of the horizontal drive structure 22. The horizontal drive structure 22 drives the nozzle structure 21 to move closer to or further away from the ampoule. The ampoule, with its bottom fired, moves to the nozzle structure 21 under the action of the conveying structure 13. The horizontal drive structure 22 drives the nozzle structure 21 to extend from the ampoule opening into the ampoule's interior to ensure that the acidic solution is sprayed onto the inner wall of the ampoule and neutralizes the alkaline substances inside, thereby improving the ampoule's water resistance. After spraying, the horizontal drive structure 22 drives the nozzle structure 21 to exit the ampoule, and the ampoule is conveyed to the subsequent process under the action of the conveying structure 13. The horizontal drive structure 22 allows the nozzle structure to extend into the ampoule during the spraying process, ensuring that the acidic solution is sprayed into the ampoule during the spraying process and avoiding waste.

[0037] like Figure 6As shown, in the technical solution of Embodiment 1, the liquid supply assembly 30 further includes a liquid storage tank structure 31 and a gas source structure 32. The liquid storage tank structure 31 includes a liquid storage tank 311 and a liquid outlet hose 312. The first end of the liquid outlet hose 312 is connected to the liquid outlet of the liquid storage tank 311, and the second end of the liquid outlet hose 312 is connected to the nozzle structure 21. The gas source structure 32 is connected to the air inlet of the liquid storage tank 311. The vertical height of the air inlet of the liquid storage tank 311 is higher than the vertical height of the liquid outlet of the liquid storage tank 311. The gas source structure 32 introduces gas into the liquid storage tank 311. Under the action of air pressure, the acidic liquid in the liquid storage tank 311 flows out from the liquid outlet hose 312 and enters the nozzle structure 21. The air source structure 32 ensures that the liquid in the liquid storage tank 311 can flow out normally. The liquid storage tank 311, the liquid outlet hose 312, and the air source structure 32 are all sealed to prevent impurities from entering the liquid storage tank 311 and affecting the spraying effect.

[0038] like Figure 6 As shown, in the technical solution of Embodiment 1, the gas source structure 32 includes a gas source 321 and a gas outlet pipe 322. The first end of the gas outlet pipe 322 is connected to the gas source 321, and the second end of the gas outlet pipe 322 has a first branch 3221 and a second branch 3222. The first branch 3221 is connected to the liquid storage tank 311, and the horizontal drive structure 22 is a cylinder. The second branch 3222 is connected to the cylinder. The gas source structure 32 supplies gas to the liquid storage tank 311 to ensure the normal outflow of acidic liquid, and simultaneously supplies gas to the cylinder, allowing the nozzle structure 21 to extend into or retract from the ampoule. The gas outlet pipe 322 allows the gas source 321 to supply gas to both the liquid storage tank 311 and the cylinder simultaneously, simplifying the structure of the entire device and reducing costs.

[0039] like Figure 6 As shown, in the technical solution of Embodiment 1, the spray assembly 20 further includes a sensing structure 23 and a control structure 24. The sensing structure 23 is correspondingly arranged with the horizontal drive structure 22. The sensing structure 23 includes a first signal line 231, which is connected to the control structure 24. The sensing structure 23 uses a red infrared sensor. After the sensing structure 23 senses that the ampoule has been transported to a suitable position by the conveying structure 13, it transmits the signal to the control structure 24 through the first signal line 231. The control structure 24 controls the spray assembly 20 to spray the ampoule with an acidic solution.

[0040] It should be noted that the nozzle structure 21 is connected to the output end of the cylinder and moves with the extension and retraction of the cylinder. To facilitate demonstrating the connection positions of the first signal line 231, power line 241, liquid outlet hose 312, and air outlet pipe 322, etc., Figure 6 The nozzle structure 21 is not connected together.

[0041] like Figure 6As shown, in the technical solution of Embodiment 1, the control structure 24 includes multiple power lines 241. A first valve is provided on the liquid outlet hose 312, and a second valve is provided on the second branch 3222. The multiple power lines 241 are respectively connected to the first valve and the second valve. Both the first valve and the second valve are solenoid valves. After receiving a signal from the first signal line 231, the control structure 24 opens the first valve and the second valve through the power lines 241. The acidic liquid enters the nozzle structure, the second valve opens, and gas enters the cylinder. The nozzle structure moves towards the ampoule and sprays the acidic solution onto the inner surface of the ampoule. By simultaneously controlling the first valve and the second valve, the nozzle structure 21 extends into the ampoule while spraying, ensuring uniform spraying throughout the ampoule and high spraying efficiency.

[0042] like Figures 1 to 3 As shown, in the technical solution of Embodiment 1, the conveying structure 13 includes multiple conveying rollers 131, which are rotatably connected to the frame structure 11. Multiple heating structures 12 are also included, positioned between adjacent conveying rollers 131. The vertical height of the heating structures 12 is lower than that of the conveying rollers 131. A glass tube is positioned between two adjacent conveying rollers 131. The heating structures 12 heat the glass tube, causing it to melt and form the bottom surface of the ampoule. Positioning the heating structures 12 at the bottom of the conveying rollers 131 saves space and allows workers to easily observe the status of the ampoules above them without obstructing their view. The flame temperatures emitted by each heating structure 12 are different. During the bottom forming process, a lower-temperature flame is first used for preheating. The area heated by the flame softens and becomes thinner but not completely separated. Then, a high-temperature flame is used to melt the glass bottle, forming the bottom surface, i.e., secondary forming. Because the forming is carried out in two steps, the flame temperature can be appropriately reduced to decrease the precipitation of alkaline substances. At the same time, acidic substances are sprayed in conjunction with the nozzle structure 21 to neutralize the alkaline substances, further improving the water resistance of the ampoule. In this embodiment, ammonium sulfate solution is used; other acidic substances can also be used in other embodiments. Table 1 shows the water resistance of ampoules of different specifications after one-time forming and two-time forming. Table 2 shows the water resistance of ampoules after spraying different concentrations of ammonium sulfate solution inside the ampoule.

[0043] Table 1

[0044]

[0045] Table 2

[0046]

[0047] Table 1 shows that the volume of hydrochloric acid titrant (0.01 mol / L) consumed per 100 ml of extract in the two-stage molded ampoule is less than that in the one-stage molded ampoule. Therefore, the two-stage molded ampoule has better water resistance. Table 2 shows that, among the 1 ml and 2 ml ampoules, the ampoule sprayed with a 2% (w / w) ammonium sulfate solution has better water resistance. In this application, the volume of solution sprayed into each ampoule is 0.2 ml. When the volume of solution sprayed is small, the coating inside the ampoule is uneven, resulting in poor water resistance; when the volume of solution sprayed is large, watermarks will form inside the ampoule, affecting the appearance quality. As shown in Tables 1 and 2, during the processing, the bottom is first formed by a two-stage molding process, and then an acidic ammonium sulfate solution is sprayed on, which can significantly improve the water resistance of the ampoule bottle.

[0048] like Figures 1 to 3 As shown, in the technical solution of Embodiment 1, the bottom forming assembly 10 further includes a pressure roller structure 14 and a mounting base structure 15. The pressure roller structure 14 is connected to the mounting base structure 15 and is located on the side of the conveying structure 13 away from the heating structure 12. The pressure roller structure 14 applies force to the ampoule to be processed, facilitating the separation of the ampoule from the glass tube and ensuring the flatness of the bottom surface of the ampoule.

[0049] like Figures 1 to 3 As shown, in the technical solution of Embodiment 1, the axis of the pressure roller structure 14 has a predetermined angle with the axis of the conveying roller 131. The rotation of the pressure roller structure 14 applies a force to the ampoule in the direction of its rotation. Since the axes of the pressure roller structure 14 and the conveying roller 131 are not parallel, and the ampoule is located between adjacent conveying rollers 131, the force applied by the pressure roller structure 14 to the ampoule causes the ampoule to move horizontally in a direction parallel to the axis of the conveying roller 131, thereby separating the ampoule from the glass tube.

[0050] like Figures 1 to 3 As shown, in the technical solution of Embodiment 1, both the mounting base structure 15 and the pressure roller structure 14 include two sets, which are symmetrically arranged on both sides of the conveying structure 13. The heating structure 12 heats the middle section of the double bottle, causing it to separate into two ampoules, thus improving processing efficiency. The arrangement of the two sets of pressure roller structures 14 causes the two ampoules to move in a direction away from each other, accelerating the separation of the ampoules and ensuring the quality of the bottom surface.

[0051] The difference between the technical solution of Embodiment 2 and Embodiment 1 is that the mounting base structure 15 includes a mounting base and a connecting part. The connecting part passes through the mounting base, and a threaded hole is opened on the side wall of the mounting base. The bolt mates with the threaded hole and abuts against the connecting part. The connecting part is cylindrical. The pressure roller structure 14 includes a connecting shaft and a pressure roller. The connecting shaft is connected to the connecting part, and the pressure roller is rotatably connected to the connecting shaft. By adjusting the position of the connecting part, the height of the pressure roller and the angle between the axis of the pressure roller and the axis of the conveying roller 131 can be changed, thereby adapting to the separation of ampoules of different diameters and changing the separation rate.

[0052] In summary, changing the one-time bottom sealing to a two-time bottom sealing, while ensuring the quality of the bottom sealing, reduces the flame temperature during sealing and improves the water resistance of the ampoule's inner surface. After the bottom sealing process, a vulcanization device is added to inject a certain proportion of sulfuric acid-containing liquid into the ampoule. The sulfuric acid-containing liquid reacts with the alkali metals on the inner wall surface of the ampoule, reducing the content of alkali metal oxides on the inner wall surface, thereby improving the ampoule's water resistance. Adding a semi-integrated ampoule cutting device increases the number from one to two, and the supporting steel wheels on each side of both devices are changed to double wheels. Adding two supporting steel wheels stabilizes and balances the semi-finished product, preventing deformation of the integrated semi-finished product. The cutting flame nozzle (heating structure 12) in the first cutting device is changed to a preheating flame nozzle (heating structure 12). During production, the flame temperature of the preheating flame nozzle is reduced, so only the elongation and thinning of the semi-integrated ampoule portion is achieved at the first cutting device, without completing the bottom sealing in one step. In the second device, cutting and bottom sealing are achieved at the cutting flame nozzle. Since the first device has already completed part of the bottom sealing, the flame temperature of the cutting flame nozzle in the second device can be reduced. Because the flame temperature of the nozzles in both devices is low, the alkaline precipitation on the inner surface of the produced ampoules is reduced, thereby improving the water resistance of the inner surface of the ampoules. Adding equipment for injecting sulfuric acid-containing liquid into the ampoules further improves the water resistance of the inner surface. When the red infrared sensor (sensing structure 23) detects that the ampoule has been transferred to its position, it transmits a signal to the control cabinet (control structure 24) via the sensor signal line (first signal line 231). The control cabinet controls the movement and timing of the two-axis cylinder (horizontal drive structure 22) to control the injection of acidic liquid and the injection time. The injection time can control the amount of acidic liquid injected. Simultaneously, the inductive proximity switch sensor transmits signals to the control system via the sensor signal line. The control system controls the flow rate of the injected acidic liquid via the solenoid valve control line (power line 241). The liquid hose connects to the solenoid valve and the atomizing automatic nozzle to supply the acidic liquid. The amount of injected acidic liquid is adjusted on the control cabinet display according to the product. The liquid storage tank is pressurized by external high-pressure air through the high-pressure air inlet, and the injection quantity is observed on the pressure gauge. Afterward, the ampoule half-piece is transferred to the next pair of supporting steel wheels. The structure and working principle are the same as the previous process. Under the high temperature heating of the cutting flame nozzle, the sulfuric acid-containing substances in the acidic liquid react with the alkali metal oxides on the inner surface of the ampoule, reducing the alkali metal oxide content on the inner surface of the ampoule and achieving the purpose of improving the water resistance of the inner surface of the ampoule.

[0053] The embodiments of this application have now been described in detail. To avoid obscuring the concept of this application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions of this application based on the above description.

[0054] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any manner.

Claims

1. An ampoule bottom forming device, characterized in that: include: A bottom forming assembly (10), the bottom forming assembly (10) comprising a frame structure (11), a heating structure (12) and a conveying structure (13), the conveying structure (13) being connected to the frame structure (11), the ampoule to be processed being arranged on the conveying structure (13), the heating structure (12) being arranged corresponding to the conveying structure (13) and being arranged towards a bottom forming area of ​​the ampoule to be processed; A spray assembly (20), the spray assembly (20) being arranged on a side of the heating structure (12) away from a feeding end of the conveying structure (13), the spray assembly (20) being arranged corresponding to the bottle mouth of the ampoule bottle to be processed; A liquid supply component (30), wherein the liquid supply component (30) contains an acidic solution, and the liquid supply component (30) is connected to the spray component (20).

2. The ampoule bottom forming device according to claim 1, characterized in that: The spray assembly (20) comprises a spray head structure (21) and a horizontal drive structure (22); the horizontal drive structure (22) is connected to the frame structure (11); and the spray head structure (21) is connected to an output end of the horizontal drive structure (22).

3. The ampoule bottom forming device according to claim 2, characterized in that: The liquid supply assembly (30) further comprises a liquid storage tank structure (31) and an air source structure (32); the liquid storage tank structure (31) comprises a liquid storage tank (311) and a liquid outlet hose (312); a first end of the liquid outlet hose (312) is connected to a liquid outlet of the liquid storage tank (311); a second end of the liquid outlet hose (312) is connected to the nozzle structure (21); and the air source structure (32) is connected to an air inlet of the liquid storage tank (311).

4. The ampoule bottom forming device according to claim 3, characterized in that: The gas source structure (32) comprises a gas source (321) and an air outlet pipeline (322), wherein a first end of the air outlet pipeline (322) is connected to the gas source (321), and a second end of the air outlet pipeline (322) comprises a first branch (3221) and a second branch (3222), wherein the first branch (3221) is connected to the liquid storage tank (311), and the horizontal driving structure (22) is a gas cylinder, and the second branch (3222) is connected to the gas cylinder.

5. The ampoule bottom forming device according to claim 4, characterized in that: The spray assembly (20) further comprises a sensing structure (23) and a control structure (24); the sensing structure (23) is arranged corresponding to the horizontal driving structure (22); the sensing structure (23) comprises a first signal line (231); and the first signal line (231) is connected to the control structure (24).

6. The ampoule bottom forming device according to claim 5, characterized in that: The control structure (24) comprises a plurality of power lines (241), a first valve is arranged on the liquid outlet hose (312), a second valve is arranged on the second branch (3222), and the plurality of power lines (241) are respectively connected to the first valve and the second valve.

7. The ampoule bottom forming device according to any one of claims 1 to 6, characterized in that: The conveying structure (13) comprises a plurality of conveying rollers (131), wherein the plurality of conveying rollers (131) are rotatably connected to the frame structure (11); the heating structure (12) comprises a plurality of heating structures (12) which are arranged between adjacent conveying rollers (131); and the height of the heating structure (12) in the vertical direction is lower than the height of the conveying rollers (131) in the vertical direction.

8. The ampoule bottom forming device according to claim 7, characterized in that: The bottom forming assembly (10) further comprises a pressure wheel structure (14) and a mounting seat structure (15), wherein the pressure wheel structure (14) is connected to the mounting seat structure (15), and the pressure wheel structure (14) is located on a side of the conveying structure (13) away from the heating structure (12).

9. The ampoule bottom forming device according to claim 8, characterized in that: There is a predetermined angle between the axis of the pressing wheel structure (14) and the axis of the conveying roller (131).

10. The ampoule bottom forming device according to claim 8, characterized in that: The mounting seat structure (15) and the pressing wheel structure (14) each include two sets, and the two sets of the mounting seat structure (15) and the two sets of the pressing wheel structure (14) are symmetrically arranged on both sides of the conveying structure (13).

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