Glass tube neck pressing device for ampoule bottle preparation
The glass tube necking device, which uses multiple components working together, achieves uniform heating and stable positioning of ampoules, solving the problems of uneven heating and displacement in traditional devices, improving production quality and stability, and reducing operational difficulty.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIYUAN QIANQIAN GLASS PROD CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-04-17
AI Technical Summary
Traditional ampoule manufacturing equipment suffers from uneven heating on both sides, resulting in uneven heating of the ampoule body, which affects the necking accuracy and product quality, increases the defect rate, and the ampoule may shift or shake during the heating process, affecting the processing stability.
The glass tube necking device, which employs a multi-component collaborative operation, uses a motor-driven bevel gear system to rotate and heat the ampoule. Combined with clamping claws and suction cups for fixation, it achieves uniform heating and stable positioning, ensuring the uniformity and stability of the glass tube's heating during processing.
It has improved the production quality of ampoules, reduced the defect rate, enhanced processing stability and precision, reduced operational difficulty and labor intensity, and adapted to diversified production needs.
Smart Images

Figure CN224132913U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ampoule preparation technology, and in particular to a glass tube necking device for ampoule preparation. Background Technology
[0002] Ampoules are small glass or plastic containers used to hold liquid medicines such as medications, vaccines, and blood products. They are generally made of glass, which has good chemical stability and can effectively prevent the medicine from reacting with the external environment, ensuring the quality of the medicine. Ampoules are usually tubular with a slender neck and a flat bottom. The narrow neck makes them easy to seal and break. They have excellent sealing performance and often use a fusion sealing process, which can effectively isolate air, moisture, and microorganisms, extend the shelf life of the medicine, and ensure the safety and effectiveness of the medicine during storage and transportation. In medical settings, medical staff can easily draw out the liquid medicine for injection by simply breaking off the neck of the ampoule.
[0003] Traditional heating devices heat only the sides of the ampoule, which can easily lead to uneven heating. The slow heat transfer in the center and the large temperature difference between the center and sides can cause inconsistent glass softening. During necking, uneven heating can result in inconsistent neck diameters and wall thicknesses, severely impacting product quality and consistency, increasing the reject rate. Furthermore, the hot airflow and thermal stress generated by dual-sided heating can interfere with ampoule fixation. During heating, the expansion forces from the sides can cause slight displacement or wobbling within the fixing device. This not only affects the heating effect but can also lead to ampoule misalignment during subsequent processing, affecting necking accuracy and even damaging the ampoule. Utility Model Content
[0004] The purpose of this invention is to provide a glass tube necking device for ampoule manufacturing. This device solves the problems of traditional devices that only heat the ampoule from both sides, leading to uneven heating, slow heat transfer in the center, and a large temperature difference between the center and sides. This can result in inconsistent glass softening. During necking, uneven heating causes variations in neck diameter and wall thickness, severely impacting product quality and consistency, increasing the defect rate. Furthermore, the hot airflow and thermal stress generated by bilateral heating can interfere with ampoule fixation. During heating, the expansion force from both sides can cause slight displacement or shaking within the fixing device. This not only affects the heating effect but may also lead to ampoule positional shifts during subsequent processing, affecting necking accuracy and even damaging the ampoule.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a glass tube necking device for ampoule preparation, comprising a processing table and a preparation mechanism disposed on the outer side of the end of the processing table. The preparation mechanism includes a necking device body installed on one side of the processing table, a heating box disposed on one side of the necking device body, and a processing mechanism for uniformly heating the ampoule disposed on the inner side of the heating box.
[0006] In a preferred embodiment, the processing mechanism includes a slide rail fixedly connected to the upper surface of the processing table. A slider is slidably connected to one side of the slide rail, a fixed frame is fixedly connected to one side of the slider, and a connecting frame is fixedly connected to one side of the fixed frame. A first bevel gear is rotatably connected to the inner side of one end of the connecting frame, and a third bevel gear is rotatably connected to the inner side of the other end of the connecting frame. A first rotating shaft is fixedly connected to the upper surface of the first bevel gear, and a rotating sleeve is fixedly connected to one side of the third bevel gear. The outer side of the first rotating shaft is rotatably connected to the inner side of the rotating sleeve and the third bevel gear. A second bevel gear is rotatably connected to one side of the connecting frame, and the second bevel gear meshes with the first bevel gear and the third bevel gear. A rotating mechanism is provided on one side of the rotating sleeve.
[0007] In a preferred embodiment, the rotating mechanism includes a gear ring fixedly connected to the outer top of the fixed frame. A rotating plate is rotatably connected to one side of the rotating sleeve. Multiple first gears are rotatably connected to the outer end of the rotating plate. The outer sides of the first gears mesh with the inner side of the gear ring. A second gear is fixedly connected to the outer end of the first rotating shaft. The outer sides of the second gear mesh with multiple first gears. A mounting base is fixedly connected to one side of the first gear. Multiple heaters are annularly mounted on the outer top of the mounting base. A fixing mechanism is provided on one side of the first gear, and an ampoule is inserted into the inner side of the fixing mechanism.
[0008] In a preferred embodiment, the nozzle of the heater is aligned with the end of the ampoule inside the fixing mechanism.
[0009] In a preferred embodiment, the fixing mechanism includes a limiting seat, which is fixedly connected to the upper surface of the first gear.
[0010] In a preferred embodiment, the top outer side of the limiting seat is fixedly connected with a plurality of clamping claws in an arc shape.
[0011] In a preferred embodiment, a suction cup is fixedly connected to the inner side of the bottom end of the limiting seat.
[0012] In a preferred embodiment, a protrusion is provided on one side of the clamping claw, and one side of the clamping claw contacts the outer side of the ampoule.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0014] 1. In use, this utility model utilizes a motor to drive the second bevel gear to rotate, which in turn coordinates a series of components, including the first bevel gear, the third bevel gear, the first rotating shaft, the rotating sleeve, the rotating plate, and the first gear, to work together. This allows the ampoule to simultaneously perform circular motion and rotation within the limiting seat. This efficient power transmission and multi-component coordination mechanism significantly improves the rotational efficiency during ampoule processing, laying a solid foundation for subsequent processing operations. The mounting seat drives the first gear to perform circular motion and rotation, while the heater on one side of the mounting seat also performs circular motion. The ampoule is heated evenly from multiple angles on its outer periphery inside the limiting seat. This ensures uniform heating during processing, preventing quality issues caused by localized overheating or undercooling of the glass tube. This significantly improves the production quality of the ampoule and reduces the defect rate. Users simply place the ampoule inside the limiting seat and start the motor on one side of the connecting frame. The entire device automatically completes the complex rotation and heating actions. The operation process is simple and easy to understand, reducing the technical threshold and labor intensity for operators. This facilitates rapid operation and efficient management in large-scale production.
[0015] 2. In use, this utility model uses multiple clamping claws to hold the outside of the ampoule, providing uniform lateral support and effectively preventing the ampoule from shaking inside the limiting seat due to rotation or external interference. This ensures that the ampoule maintains a stable position throughout the processing, greatly improving overall stability and providing a solid guarantee for the smooth progress of subsequent processing operations. The suction cup's adsorption effect on the lower surface of the flat-bottomed ampoule, combined with the clamping claws, forms a coordinated fixing mode, which not only further enhances the firmness of the ampoule fixation but also accommodates flat-bottomed ampoules of different shapes and weights, adapting to diverse production needs and preventing the ampoule from shifting or falling off during heating, rotation, etc., ensuring the continuity and safety of the production process. Attached Figure Description
[0016] Figure 1 A schematic diagram of the main structure of a glass tube necking device for ampoule preparation provided by this utility model;
[0017] Figure 2 A schematic diagram of the slider and fixing frame in a glass tube necking device for ampoule preparation provided by this utility model;
[0018] Figure 3 A schematic diagram of the third bevel gear and rotating sleeve in a glass tube necking device for ampoule preparation provided by this utility model;
[0019] Figure 4 A schematic diagram of the mounting base and heater in a glass tube necking device for ampoule preparation provided by this utility model;
[0020] Figure 5 This utility model provides a schematic diagram of the limiting seat and clamping claw in a glass tube necking device for ampoule preparation.
[0021] Legend:
[0022] 1. Processing table;
[0023] 2. Preparation mechanism; 21. Neck pressing device body; 22. Slide rail; 23. Slider; 24. Fixing frame; 25. Connecting frame; 26. First bevel gear; 27. First rotating shaft; 28. Second bevel gear; 29. Third bevel gear; 210. Rotating sleeve; 211. Gear ring; 212. Rotating plate; 213. First gear; 214. Second gear; 215. Mounting base; 216. Heater; 217. Limiting seat; 218. Clamping claw; 219. Suction cup; 220. Heating box. Detailed Implementation
[0024] 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.
[0025] Please see Figure 1 - Figure 5This utility model provides a technical solution: a glass tube necking device for ampoule preparation, including a processing table 1 and a preparation mechanism 2 disposed on the outer side of the end of the processing table 1. The preparation mechanism 2 includes a necking device body 21 installed on one side of the processing table 1. A heating box 220 is disposed on one side of the necking device body 21. A processing mechanism for uniformly heating ampoules is disposed on the inner side of the heating box 220. The processing mechanism includes a slide rail 22, which is fixedly connected to the upper surface of the processing table 1. A slider 23 is slidably connected to one side of the slide rail 22. A fixing frame 24 is fixedly connected to one side of the slider 23. A connecting frame 25 is fixedly connected to one side of the fixing frame 24. A first bevel gear 26 is rotatably connected to the inner side of one end of the connecting frame 25. A third bevel gear 29 is rotatably connected to the inner side of the other end of the connecting frame 25. A first rotating shaft 27 is fixedly connected to the upper surface of the first bevel gear 26. A rotating sleeve 210 is fixedly connected to one side of the third bevel gear 29. The outer side of the first rotating shaft 27 is connected to the rotating sleeve 210 and the third bevel gear 29. The inner side of the 9 is rotatably connected, and a second bevel gear 28 is rotatably connected to one side of the connecting frame 25. The second bevel gear 28 meshes with the first bevel gear 26 and the third bevel gear 29. A rotating mechanism is provided on one side of the rotating sleeve 210. The rotating mechanism includes a gear ring 211, which is fixedly connected to the outer top of the fixed frame 24. A rotating plate 212 is rotatably connected to one side of the rotating sleeve 210. Multiple first gears 213 are rotatably connected to the outer end of the rotating plate 212. The outer side of the first gears 213 is connected to the gear teeth. The inner side of the ring 211 is meshed with the second gear 214 fixedly connected to the outer side of the end of the first rotating shaft 27. The outer side of the second gear 214 meshes with multiple first gears 213. A mounting base 215 is fixedly connected to one side of the first gear 213. Multiple heaters 216 are annularly mounted on the outer side of the top of the mounting base 215. A fixing mechanism is provided on one side of the first gear 213. An ampoule is inserted inside the fixing mechanism. The nozzle of the heater 216 is aligned with the end of the ampoule inside the fixing mechanism.
[0026] When using this device, the user can place the ampoule to be processed inside the first rotating shaft 27. Then, the user can place the ampoule inside the limiting seat 217. At this point, the motor on one side of the connecting frame 25 drives the second bevel gear 28 to rotate. Simultaneously, the rotation of the second bevel gear 28 drives the first bevel gear 26 and the third bevel gear 29 to rotate relative to each other, which in turn drives the first rotating shaft 27 and the rotating sleeve 210 to rotate relative to each other. From a mechanical principle perspective, the opposite rotation of the rotating plate 212 and the rotating sleeve 210 can partially cancel each other out due to their relative motion. Inertia and friction reduce the additional load on the transmission system. Simultaneously, the first rotating shaft 27 drives the mounting base 215 to rotate, efficiently driving the first gear 213 to rotate in a circular motion while simultaneously rotating itself. This causes the ampoule inside the limiting seat 217 to rotate in a circular motion while also rotating itself. At the same time, the heater 216 on one side of the mounting base 215 also rotates in a circular motion, providing uniform and efficient heating to the outer periphery of the ampoule inside the limiting seat 217. After heating, the device can be slid into the necking device body 21 via the slide rail 22 for downward necking operation. The motor drives the second bevel gear 28 to rotate, which in turn coordinates a series of components, including the first bevel gear 26, the third bevel gear 29, the first rotating shaft 27, the rotating sleeve 210, the rotating plate 212, and the first gear 213, to work together. This allows the ampoule to simultaneously perform circular motion and rotation within the limiting seat 217. This efficient power transmission and multi-component coordination mechanism greatly improves the rotational efficiency during ampoule processing, laying a good foundation for subsequent processing operations. The mounting seat 215 drives the first gear 213 to perform circular motion and rotation, while the heater 216 on one side of the mounting seat 215 also... The ampoule undergoes circular motion, uniformly heating the outer periphery of the ampoule inside the limiting seat 217 from multiple angles. This ensures uniform heating of the ampoule during processing, avoiding quality problems caused by localized overheating or undercooling, greatly improving the production quality of the ampoule and reducing the defect rate. Users only need to place the ampoule inside the limiting seat 217 and start the motor on one side of the connecting frame 25. The entire device can automatically complete the complex rotation and heating actions. The operation process is simple and easy to understand, reducing the technical threshold and labor intensity of operators, and is conducive to rapid operation and efficient management in large-scale production.
[0027] like Figure 1 - Figure 5 As shown, the fixing mechanism includes a limiting seat 217, which is fixedly connected to the upper surface of the first gear 213. Multiple clamping claws 218 are fixedly connected to the outer side of the top of the limiting seat 217 in a ring shape. The clamping claws 218 have an arc-shaped structure. A suction cup 219 is fixedly connected to the inner side of the bottom end of the limiting seat 217. A protrusion is provided on one side of the clamping claw 218, and one side of the clamping claw 218 is in contact with the outer side of the ampoule.
[0028] When the ampoule is inserted into the limiting seat 217, multiple gripping claws 218 clamp the outer side of the ampoule, increasing its stability within the limiting seat 217. Simultaneously, the suction cup 219 adheres to the flat-bottomed lower surface of the ampoule, further enhancing its secure fixation. The gripping claws 218 provide uniform lateral support, effectively preventing the ampoule from shaking due to rotation or external interference within the limiting seat 217, ensuring the ampoule remains securely in place during processing. The ampoule maintains a stable position throughout, greatly improving overall stability and providing a solid guarantee for the smooth progress of subsequent processing operations. The suction cup 219 adsorbs the lower surface of the flat-bottomed ampoule, forming a coordinated fixing mode with the clamping claw 218. This not only further enhances the firmness of the ampoule fixation, but also can handle flat-bottomed ampoules of different shapes and weights, adapting to diverse production needs and preventing the ampoule from shifting or falling off during heating, rotation, etc., ensuring the continuity and safety of the production process.
[0029] Working Principle: When using this device, the user can place the ampoule to be processed inside the first rotating shaft 27. At this time, the user can place the ampoule inside the limiting seat 217. The motor on one side of the connecting frame 25 is then activated, driving the second bevel gear 28 to rotate. Simultaneously, the rotation of the second bevel gear 28 drives the first bevel gear 26 and the third bevel gear 29 to rotate relative to each other, which in turn drives the first rotating shaft 27 and the rotating sleeve 210 to rotate relative to each other. From a mechanical perspective, the counter-rotation of the rotating plate 212 and the rotating sleeve 210 utilizes their relative motion to offset some of the inertial force and friction, reducing the additional load on the transmission system. Simultaneously, the first rotating shaft 27 drives the mounting base 215 to rotate, efficiently driving the first gear 213 to perform both circular and self-rotation. This allows the ampoule inside the limiting seat 217 to perform both circular and self-rotation. Meanwhile, the mounting base 215... The heater 216 on the side is also in a circular motion, which can uniformly and efficiently heat the outer periphery of the ampoule inside the limiting seat 217. After heating, the device can be slid into the body 21 of the necking device via the slide rail 22 for downward necking operation. The motor drives the second bevel gear 28 to rotate, which can work together with a series of components such as the first bevel gear 26, the third bevel gear 29, the first rotating shaft 27, the rotating sleeve 210, the rotating plate 212, and the first gear 213, so that the ampoule can simultaneously perform circular motion and rotation inside the limiting seat 217. This efficient power transmission and multi-component cooperation mechanism greatly improves the rotation efficiency in the ampoule processing process and lays a good foundation for subsequent processing operations. The mounting seat 215 drives the first gear 213 to perform circular motion and rotation. At the same time, the heater 216 on one side of the mounting seat 215 also performs circular motion, uniformly heating the outer periphery of the ampoule inside the limiting seat 217 from multiple angles.This ensures uniform heating of the ampoules during processing, avoiding quality problems caused by localized overheating or undercooling of the glass tubes. This significantly improves the production quality of the ampoules and reduces the defect rate. Users only need to place the ampoule inside the limiting seat 217 and start the motor on one side of the connecting frame 25. The entire device can automatically complete the complex rotation and heating actions. The operation process is simple and easy to understand, reducing the technical threshold and labor intensity for operators. It is conducive to rapid operation and efficient management in large-scale production. When the ampoule is inserted into the limiting seat 217, multiple gripping claws 218 will clamp the outside of the ampoule, increasing the stability of the ampoule inside the limiting seat 217. At the same time, the suction cup 219 can adsorb the lower surface of the flat-bottomed ampoule, further increasing the grip on the ampoule. The ampoule is securely fixed by multiple gripping claws 218 that clamp the outer side of the ampoule, providing uniform lateral support. This effectively prevents the ampoule from shaking inside the limiting seat 217 due to rotation or external interference, ensuring that the ampoule maintains a stable position throughout the processing. This significantly improves overall stability and provides a solid guarantee for the smooth progress of subsequent processing operations. The suction cup 219's adsorption on the lower surface of the flat-bottomed ampoule, combined with the gripping claws 218, forms a coordinated fixing mode. This not only further enhances the firmness of the ampoule fixation but also accommodates flat-bottomed ampoules of different shapes and weights, adapting to diverse production needs. It prevents the ampoule from shifting or falling off during heating, rotation, etc., ensuring the continuity and safety of the production process.
[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or equivalent variations to the above-disclosed technical content and apply them to other fields. However, any simple modifications, equivalent variations and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. An ampoule preparation glass tube neck-pressing device comprising a processing table (1), characterized in that: It also includes a preparation mechanism (2) located on the outer side of the end of the processing table (1). The preparation mechanism (2) includes a necking device body (21) installed on one side of the processing table (1). A heating box (220) is provided on one side of the necking device body (21). A processing mechanism for uniformly heating the ampoule is provided on the inner side of the heating box (220).
2. The device according to claim 1, wherein: The processing mechanism includes a slide rail (22), which is fixedly connected to the upper surface of the processing table (1). A slider (23) is slidably connected to one side of the slide rail (22). A fixed frame (24) is fixedly connected to one side of the slider (23). A connecting frame (25) is fixedly connected to one side of the fixed frame (24). A first bevel gear (26) is rotatably connected to the inner side of one end of the connecting frame (25). A third bevel gear (29) is rotatably connected to the inner side of the other end of the connecting frame (25). 6) The upper surface is fixedly connected to a first rotating shaft (27), and a rotating sleeve (210) is fixedly connected to one side of the third bevel gear (29). The outer side of the first rotating shaft (27) is rotatably connected to the rotating sleeve (210) and the inner side of the third bevel gear (29). A second bevel gear (28) is rotatably connected to one side of the connecting frame (25). The second bevel gear (28) meshes with the first bevel gear (26) and the third bevel gear (29). A rotating mechanism is provided on one side of the rotating sleeve (210).
3. The device according to claim 2, wherein: the necking device is a glass tube necking device. The rotating mechanism includes a gear ring (211), which is fixedly connected to the outer top of the fixed frame (24). A rotating plate (212) is rotatably connected to one side of the rotating sleeve (210). Multiple first gears (213) are rotatably connected to the outer end of the rotating plate (212). The outer side of the first gears (213) meshes with the inner side of the gear ring (211). A second gear (214) is fixedly connected to the outer end of the first rotating shaft (27). The outer side of the second gear (214) meshes with multiple first gears (213). A mounting base (215) is fixedly connected to one side of the first gear (213). Multiple heaters (216) are annularly mounted on the outer top of the mounting base (215). A fixing mechanism is provided on one side of the first gear (213). An ampoule is inserted into the inner side of the fixing mechanism.
4. The device according to claim 3, wherein: The nozzle of the heater (216) is aligned with the end of the ampoule inside the fixing mechanism.
5. The device according to claim 3, wherein: the necking device is a glass tube necking device. The fixing mechanism includes a limiting seat (217), which is fixedly connected to the upper surface of the first gear (213).
6. The device according to claim 5, wherein: The top outer side of the limiting seat (217) is fixedly connected with a plurality of clamping claws (218), which are arc-shaped structures.
7. The device according to claim 6, wherein: A suction cup (219) is fixedly connected to the inner side of the bottom end of the limiting seat (217).
8. The device according to claim 6, wherein: The clamping claw (218) has a protrusion on one side, and one side of the clamping claw (218) is in contact with the outside of the ampoule.