Quick-release crucible and nozzle device

By incorporating structural designs such as limiting plates, locking nuts, and retaining rings, the problem of disassembling the high-temperature nozzle and connecting pipe is solved, enabling convenient disassembly of the nozzle and crucible and simplifying the equipment maintenance process.

CN224132903UActive Publication Date: 2026-04-17SHANGHAI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI UNIV
Filing Date
2025-04-29
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

In existing technologies, the connection between the high-temperature nozzle and the connecting pipe is difficult to disassemble, making replacement difficult.

Method used

The design incorporates a limiting plate, locking nut, retaining ring, threaded plug, and spring. The nozzle and crucible can be easily disassembled through threaded connection and slotted mounting. The nozzle can be disassembled after the locking force is reduced by the cooperation of the threaded plug and spring, and the connecting pipe can be disassembled after cooling.

Benefits of technology

It enables convenient disassembly of the high-temperature nozzle and connecting pipe, simplifies the replacement process, and improves equipment maintenance efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of 3D (three-dimensional) glass printer accessories, and discloses a quick-release crucible and nozzle device, a glass smelting furnace is fixedly mounted at the top of a glass annealing furnace, a glass crucible is arranged in the glass smelting furnace, a communicating pipe is arranged at the bottom of the glass crucible in a penetrating manner, and a nozzle is arranged in the communicating pipe. A limiting plate is fixedly mounted at the top of the communicating pipe, a locking nut is in threaded connection with the outer side of the communicating pipe, a high-temperature nozzle is detachably mounted at the bottom of the communicating pipe, and a fixing ring is fixedly mounted on the outer side of the high-temperature nozzle. The threaded plug is driven by a tool to retreat in the threaded groove, the pushing force of the spring is reduced, then the locking force between the insertion block and the annular clamping groove is reduced, and then the whole high-temperature nozzle can be disassembled by holding the fixing ring and pulling the fixing ring downwards. And after the communicating pipe is cooled, the locking nut is detached from the communicating pipe, and then the communicating pipe is pushed out of the glass crucible, so that the glass crucible is conveniently detached in the process.
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Description

Technical Field

[0001] This utility model relates to the technical field of 3D glass printer accessories, specifically a quick-release crucible and nozzle device. Background Technology

[0002] With the development of 3D printing technology, the printing materials used are also becoming increasingly diverse. As printing technology advances and research into printing materials progresses, the number and types of printing materials are gradually increasing. For example, materials like glass have strong application and commercial value.

[0003] Glass is primarily composed of silicon dioxide, while the Earth's crust is mainly composed of silicate minerals, which are the primary raw materials for glass production. If glass can be used as a 3D printing material, its main advantages include: inexpensive raw material, easy recycling, environmental friendliness, and biodegradability; hardness, resistance to high temperatures and chemical corrosion; and a unique texture compared to other materials. Furthermore, glass products are transparent, allowing for processing with various transparent or opaque glass materials, reducing processing difficulty and lowering manufacturing requirements.

[0004] Glass printing requires melting glass in a crucible, then passing it through a pipe into a high-temperature nozzle, where the liquid glass is finally sprayed into shape. Conventionally, the crucible, connecting pipe, and high-temperature nozzle are directly connected by threads. In particular, the high-temperature nozzle needs to be replaced. However, when the high-temperature liquid glass flows through the high-temperature nozzle, it causes the high-temperature nozzle and connecting pipe to expand, making the high-temperature nozzle difficult to disassemble. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a quick-release crucible and nozzle device, which has the advantage of easy disassembly of the nozzle and crucible, thus solving the aforementioned problems.

[0007] (II) Technical Solution

[0008] To achieve the goal of convenient disassembly of the nozzle and crucible, this utility model provides the following technical solution: a quick-disassembly crucible and nozzle device, including a glass annealing furnace, a glass melting furnace fixedly installed on the top of the glass annealing furnace, a glass crucible disposed inside the glass melting furnace, a connecting pipe inserted through the bottom of the glass crucible, a limiting plate fixedly installed on the top of the connecting pipe, a locking nut threadedly connected to the outside of the connecting pipe, a high-temperature nozzle detachably installed on the bottom of the connecting pipe, a fixing ring fixedly installed on the outside of the high-temperature nozzle, an annular groove formed between the fixing ring and the high-temperature nozzle, and a heating wire embedded inside the high-temperature nozzle.

[0009] Preferably, the outer wall of the fixing ring is provided with a threaded groove, the inside of the threaded groove is threaded with a threaded plug, a protrusion is fixedly installed on the side of the threaded plug, a spring is fixedly installed on the outside of the protrusion, a circular plate is provided on the other side of the spring, an insert is fixedly installed on the side of the circular plate, and an annular groove corresponding to the insert is provided on the lower outer side of the connecting pipe.

[0010] Preferably, the inner bottom wall of the glass crucible has a groove corresponding to the limiting plate, and the limiting plate is embedded in the groove.

[0011] Preferably, the glass crucible is detachably installed with the glass annealing furnace via a connecting pipe, a limiting plate, and a locking nut.

[0012] Preferably, the bottom inner wall of the connecting pipe is provided with a reserved groove corresponding to the high-temperature nozzle, and the bottom of the connecting pipe is inserted into the interior of the annular groove.

[0013] Preferably, the high-temperature nozzle is detachably attached to the connecting pipe via a fixing ring, a plug, and an annular groove.

[0014] Preferably, the end of the insert block that is inserted into the annular slot is hemispherical, and the annular slot has a curved surface.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present invention provides a quick-release crucible and nozzle device, which has the following advantages:

[0017] This quick-release crucible and nozzle device allows the threaded plug to retract in the threaded groove using a tool, reducing the spring's pushing force and consequently the locking force between the insert block and the annular groove. Then, by holding the retaining ring and pulling down, the entire high-temperature nozzle can be disassembled. After the connecting tube cools down, the locking nut can be removed from the connecting tube, and the connecting tube can be pushed out of the glass crucible. This process enables convenient disassembly of the glass crucible. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of this utility model from below;

[0020] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 4 This is an exploded structural diagram of the glass crucible, connecting tube, and high-temperature nozzle of this utility model;

[0022] Figure 5This is a cross-sectional exploded view of the connecting pipe and high-temperature nozzle of this utility model;

[0023] Figure 6 This is an exploded structural diagram of the threaded plug, spring, and insert block of this utility model.

[0024] In the diagram: 1. Glass annealing furnace; 2. Glass melting furnace; 3. Glass crucible; 4. Connecting pipe; 5. Limiting plate; 6. Locking nut; 7. High-temperature nozzle; 8. Fixing ring; 9. Annular groove; 10. Threaded groove; 11. Heating wire; 12. Threaded plug; 13. Protrusion; 14. Spring; 15. Circular plate; 16. Insert block; 17. Annular slot. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-3 A quick-release crucible and nozzle device includes a glass annealing furnace 1, a glass melting furnace 2 fixedly mounted on the top of the glass annealing furnace 1, a glass crucible 3 disposed inside the glass melting furnace 2, a connecting pipe 4 inserted through the bottom of the glass crucible 3, a limiting plate 5 fixedly mounted on the top of the connecting pipe 4, and a groove corresponding to the limiting plate 5 formed on the inner bottom wall of the glass crucible 3, with the limiting plate 5 embedded in the groove. A locking nut 6 is threadedly connected to the outer side of the connecting pipe 4. The glass crucible 3 is detachably installed and removed from the glass annealing furnace 1 via the connecting pipe 4, the limiting plate 5, and the locking nut 6.

[0027] Please see Figure 1-3 A high-temperature nozzle 7 is detachably installed at the bottom of the connecting pipe 4. A reserved groove corresponding to the high-temperature nozzle 7 is opened on the inner wall of the bottom of the connecting pipe 4. A fixing ring 8 is fixedly installed on the outer side of the high-temperature nozzle 7. An annular groove 9 is opened between the fixing ring 8 and the high-temperature nozzle 7. The bottom of the connecting pipe 4 is inserted into the interior of the annular groove 9. A heating wire 11 is embedded inside the high-temperature nozzle 7 to ensure that the glass flowing into the high-temperature nozzle 7 will not solidify.

[0028] Please see Figure 4-6The outer wall of the fixing ring 8 is provided with a threaded groove 10. The threaded groove 10 is internally threaded with a threaded plug 12. A protrusion 13 is fixedly installed on the side of the threaded plug 12. A spring 14 is fixedly installed on the outside of the protrusion 13. A circular plate 15 is provided on the other side of the spring 14. An insert block 16 is fixedly installed on the side of the circular plate 15. An annular groove 17 corresponding to the insert block 16 is provided on the lower outer side of the connecting pipe 4. One end of the insert block 16 inserted into the annular groove 17 is hemispherical. The annular groove 17 is curved. The high-temperature nozzle 7 is detachably clamped to the connecting pipe 4 through the fixing ring 8, the insert block 16 and the annular groove 17.

[0029] Working principle: When in use, the threaded plug 12 is driven to retract in the threaded groove 10 by the tool, the pushing force of the spring 14 decreases, and then the locking force between the insert block 16 and the annular groove 17 decreases. Then, by holding the fixing ring 8 and pulling down, the entire high temperature nozzle 7 can be disassembled.

[0030] After the connecting tube 4 has cooled down, the locking nut 6 is removed from the connecting tube 4, and then the connecting tube 4 is pushed out of the glass crucible 3. This process enables convenient disassembly of the glass crucible 3.

[0031] Conversely, by inserting the connecting tube 4 into the glass crucible 3 and tightening the locking nut 6, the glass crucible 3 can be fixedly installed; the drive threaded plug 12 moves forward in the threaded groove 10, the pushing force of the spring 14 increases, and the force of the insert block 16 entering the annular groove 17 increases, thereby ensuring the fixed installation between the high-temperature nozzle 7 and the connecting tube 4.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-release crucible and nozzle device, comprising a glass annealing furnace (1), wherein a glass melting furnace (2) is fixedly installed on the top of the glass annealing furnace (1), and a glass crucible (3) is disposed inside the glass melting furnace (2), characterized in that: A connecting pipe (4) is inserted through the bottom of the glass crucible (3). A limiting plate (5) is fixedly installed on the top of the connecting pipe (4). A locking nut (6) is threaded on the outside of the connecting pipe (4). A high-temperature nozzle (7) is detachably installed at the bottom of the connecting pipe (4). A fixing ring (8) is fixedly installed on the outside of the high-temperature nozzle (7). An annular groove (9) is opened between the fixing ring (8) and the high-temperature nozzle (7). A heating wire (11) is embedded inside the high-temperature nozzle (7).

2. A quick-release crucible and nozzle assembly according to claim 1, wherein: The outer wall of the fixing ring (8) is provided with a threaded groove (10), and a threaded plug (12) is threadedly connected inside the threaded groove (10). A protrusion (13) is fixedly installed on the side of the threaded plug (12), and a spring (14) is fixedly installed on the outside of the protrusion (13). A circular plate (15) is provided on the other side of the spring (14), and a plug (16) is fixedly installed on the side of the circular plate (15). An annular groove (17) corresponding to the plug (16) is provided on the lower outer side of the connecting pipe (4).

3. A quick-release crucible and nozzle assembly according to claim 1, wherein: The inner bottom wall of the glass crucible (3) is provided with a plate groove corresponding to the limiting plate (5), and the limiting plate (5) is embedded in the plate groove.

4. A quick-release crucible and nozzle assembly according to claim 1, wherein: The glass crucible (3) is detachably installed with the glass annealing furnace (1) via a connecting pipe (4), a limiting plate (5), and a locking nut (6).

5. A quick-release crucible and nozzle assembly according to claim 1, wherein: The bottom inner wall of the connecting pipe (4) is provided with a reserved groove corresponding to the high temperature nozzle (7), and the bottom of the connecting pipe (4) is inserted into the interior of the annular groove (9).

6. A quick-release crucible and nozzle assembly according to claim 2, wherein: The high-temperature nozzle (7) is detachably attached to the connecting pipe (4) via a fixing ring (8), a plug (16), and an annular groove (17).

7. A quick-release crucible and nozzle assembly according to claim 2, wherein: The end of the insert (16) inserted into the annular slot (17) is hemispherical, and the annular slot (17) has a curved shape.