Chocolate injection molding nozzle with drip-proof function
By introducing a sealing assembly of springs and top blocks into the chocolate injection nozzle and designing injection heads of various sizes, the problem of sealing gaps caused by graphite ring wear is solved, achieving the functions of durable sealing and rapid adjustment of injection size.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RISHIDANLIAN (FUJIAN) HEALTH IND CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-12
AI Technical Summary
Existing chocolate injection nozzles suffer from graphite ring wear during prolonged use, leading to gaps at the sealing position, which affects the sealing effect and makes it inconvenient to quickly replace nozzles of different sizes as needed.
A sealing assembly with springs and top blocks is used, with a graphite ring one for sealing, and multiple injection heads of different sizes are set at the bottom of the rotating disk, which are sealed by a graphite ring two. The rotating disk can quickly adjust the injection size.
It achieves a sealing effect even after the graphite ring wears out, and allows for quick changes in filling size, improving work efficiency, preventing chocolate dripping, and saving manual adjustment time.
Smart Images

Figure CN224219350U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chocolate processing technology, specifically to a chocolate injection nozzle with anti-drip function. Background Technology
[0002] Chocolate is a popular food that holds an important place in different cultures. It is often associated with love, holidays, and celebrations, such as Valentine's Day chocolate gifts and Christmas chocolates. In the chocolate processing process, an injection molding machine is used to inject the chocolate into a mold for easy sale. The selection of the injection nozzle of the injection molding machine plays an important role in the processing.
[0003] A search revealed that the announcement number is CN207359522U, titled "A Hot Nozzle Structure for Injection Molds That Can Effectively Prevent Plastic Leakage," which includes a hot nozzle body. Research and analysis showed that the use of graphite rings to enhance the sealing performance of the connection surface between the two components, while the corrosion resistance of the graphite rings can also ensure that the overall sealing strength does not easily change, thus allowing the hot nozzle to be used for a long time. However, it still has the following drawbacks to some extent.
[0004] For example, if the graphite ring is directly installed, it will wear down over a long period of use, causing the graphite ring to shrink in size and creating gaps at the sealing position, which will affect the sealing effect. At the same time, it is inconvenient to quickly change the output volume according to the needs, and different sizes of mold nozzles need to be replaced manually, which is a rather cumbersome operation. In order to solve the above technical problems, we have designed a chocolate injection nozzle with anti-drip function. Utility Model Content
[0005] The purpose of this invention is to provide a chocolate injection nozzle with anti-drip function, which has the advantages of long-lasting sealing and convenient nozzle replacement. It solves the problems that wear occurs during long-term use, resulting in a reduction in the volume of the graphite ring, causing gaps at the sealing position and affecting the sealing effect. At the same time, it is inconvenient to quickly change the discharge volume according to needs, and different sizes of nozzles need to be manually replaced.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a chocolate injection nozzle with anti-drip function, comprising an injection nozzle body, a connector connected to the top of the injection nozzle body, a connecting bolt fitted onto the bottom of the connector surface, a sealing nozzle threaded onto the bottom of the injection nozzle body, a material hole penetrating the center of the bottom of the sealing nozzle, a sealing component provided on the outer ring of the bottom of the injection nozzle body, the sealing component including a mounting groove, a spring fixedly connected to the bottom of the mounting groove, a top block fixedly connected to the bottom of the spring, an annular groove surrounding the bottom of the injection nozzle body, a graphite ring I provided inside the annular groove, a damping shaft fixedly installed on the rear side of the bottom of the sealing nozzle, a rotating disk fitted onto the movable end of the damping shaft, an injection head connected to the outer ring of the bottom of the rotating disk, and a graphite ring II provided between the top of the rotating disk and the bottom of the sealing nozzle.
[0007] Preferably, the bottom of the inner cavity of the injection nozzle body has a funnel-shaped structure, and an annular limiting groove is provided at the bottom of the inner cavity of the sealing nozzle and at a point on the graphite ring.
[0008] Preferably, the number of mounting slots is eight, and they are evenly distributed at the bottom of the injection nozzle body, and the bottom of the top block is in contact with the surface of the graphite ring.
[0009] Preferably, the outer ring of the rotating disk is provided with anti-slip grooves, and the number of injection mold heads is four, all of which correspond to the position of the material hole.
[0010] Preferably, the inner diameter of the injection head is arranged in a counterclockwise rotation from large to small, and the graphite ring is arranged on the outer ring of the material hole.
[0011] Preferably, the bottom of the surface of the injection nozzle body is provided as a raised structure, and a sealing ring is fitted on the surface of the injection nozzle body below the raised structure, with the top of the sealing nozzle in close contact with the top of the sealing ring.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model effectively seals the injection nozzle body and the sealing nozzle through a graphite ring. At the same time, its own corrosion resistance can also ensure that the overall sealing strength does not change easily. After the graphite ring wears out, the spring applies elastic force to the top block, so that the top block always presses against the graphite ring, thereby ensuring that it always fills the sealing position and achieves an effective sealing effect, effectively preventing chocolate from dripping during the injection molding process.
[0014] 2. This utility model sets four injection heads of different sizes at the bottom of the rotating disk and uses two graphite rings to seal the connection. When it is necessary to adjust the injection size, simply rotate the rotating disk to rotate the injection head of the required size to the bottom of the material hole for quick use. This saves the time of manually disassembling the entire injection nozzle, greatly saves the time of adjusting the injection size, and improves work efficiency. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a three-dimensional structural diagram of the present invention viewed from below;
[0017] Figure 3 This is an exploded perspective view of a partial structure of the present invention. Figure 1 ;
[0018] Figure 4 This is a three-dimensional sectional view of a portion of the structure of this utility model, viewed from below.
[0019] Figure 5 This is an exploded perspective view of a partial structure of the present invention. Figure 2 ;
[0020] Figure 6 This utility model Figure 3 Enlarged diagram of A in the middle;
[0021] Figure 7 This is a three-dimensional view of the injection nozzle body of this utility model from below;
[0022] Figure 8 This is a partial cross-sectional view of the present invention.
[0023] In the diagram: 1. Injection nozzle body; 2. Connecting bolt; 3. Connector; 4. Sealing nozzle; 5. Rotating disk; 6. Injection head; 7. Material hole; 8. Sealing assembly; 81. Spring; 82. Graphite ring one; 83. Top block; 84. Mounting groove; 85. Annular groove; 9. Graphite ring two; 10. Damping shaft; 11. Sealing ring. Detailed Implementation
[0024] Please see Figures 1-7A chocolate injection nozzle with anti-drip function includes an injection nozzle body 1. A connector 3 is connected to the top of the injection nozzle body 1. A connecting bolt 2 is fitted onto the bottom of the surface of the connector 3. A sealing nozzle 4 is threaded onto the bottom of the surface of the injection nozzle body 1. A material hole 7 is formed through the center of the bottom of the sealing nozzle 4. A sealing assembly 8 is provided on the outer ring of the bottom of the injection nozzle body 1. The sealing assembly 8 includes a mounting groove 84. A spring 81 is fixedly connected to the bottom of the mounting groove 84. A top block is fixedly connected to the bottom of the spring 81. 83. An annular groove 85 is provided around the bottom of the injection nozzle body 1. A graphite ring 82 is provided inside the annular groove 85. A damping shaft 10 is fixedly installed on the rear side of the bottom of the sealing nozzle 4. By setting the damping shaft 10, the rotating disk 5 will not easily rotate during operation, thus improving the material discharge stability. The rotating disk 5 is sleeved on the movable end of the damping shaft 10. The injection head 6 is connected to the bottom outer ring of the rotating disk 5. A graphite ring 9 is provided between the top of the rotating disk 5 and the bottom of the sealing nozzle 4.
[0025] Please see Figure 3 The bottom of the inner cavity of the injection nozzle body 1 is a funnel-shaped structure. The funnel-shaped structure allows chocolate to be discharged smoothly from the material hole 7, avoiding chocolate residue. The bottom of the inner cavity of the sealing nozzle 4 and located at the graphite ring 82 is provided with an annular limiting groove. By setting the annular limiting groove, the graphite ring 82 can be limited to prevent it from shaking during the sealing process, which would cause gaps at the sealing point and affect the sealing effect.
[0026] Please see Figure 7 There are eight mounting slots 84. The eight mounting slots 84 can evenly install multiple springs 81, so that they can drive the top block 83 to press against the graphite ring 82, so that the graphite ring 82 can be evenly stressed and achieve a high-efficiency sealing effect. They are evenly distributed at the bottom of the injection nozzle body 1, and the bottom of the top block 83 is in contact with the surface of the graphite ring 82.
[0027] Please see Figure 2 , Figure 3 and Figure 4 The outer surface of the rotating disk 5 is provided with anti-slip grooves. By setting the anti-slip grooves, it is convenient for workers to rotate the rotating disk 5 stably. There are four injection mold heads 6, and each of them corresponds to the position of the material hole 7.
[0028] Please see Figure 2 and Figure 4 The inner diameter of the injection head 6 is arranged in a counterclockwise rotation from large to small, and the graphite ring 9 is arranged on the outer ring of the material hole 7.
[0029] Please see Figures 1-6The bottom of the surface of the injection nozzle body 1 is set as a raised structure, and a sealing ring 11 is fitted on the surface of the injection nozzle body 1 and below the raised structure. The top of the sealing nozzle 4 is in close contact with the top of the sealing ring 11.
[0030] In use, the device is connected to the discharge nozzle of the injection molding machine via connector 3. Then, graphite ring 82 is placed inside the annular groove 85. A sealing ring 11 is fitted onto the bottom of the injection nozzle body 1. The sealing nozzle 4 is then threaded onto the bottom of the injection nozzle body 1, so that the top of the sealing nozzle 4 presses against the sealing ring 11 for sealing. At the same time, graphite ring 82 effectively seals the injection nozzle body 1 and the sealing nozzle 4. Its corrosion resistance also ensures that the overall sealing strength does not easily change. After graphite ring 82 wears, spring 81 applies elastic force to top block 83, so that top block 83 always presses against graphite ring 82, thus ensuring that it always fills the sealing position for further sealing. By setting four injection heads 6 of different sizes at the bottom of the rotating disk 5, the connection is sealed by graphite ring 9. When it is necessary to adjust the injection size, simply rotate the rotating disk 5 so that the injection head 6 of the required size is rotated below the material hole 7 for quick use.
[0031] In summary, this anti-drip chocolate injection nozzle, through the cooperation of the injection nozzle body 1, connector 3, sealing nozzle 4, rotating disk 5, injection head 6, material hole 7, sealing component 8, graphite ring 9, damping shaft 10, and sealing ring 11, solves the problem that wear and tear during long-term use leads to a reduction in the volume of the graphite ring, causing gaps at the sealing position and affecting the sealing effect. It also addresses the inconvenience of quickly changing the discharge volume according to needs, requiring manual replacement of nozzles of different sizes.
Claims
1. A chocolate injection nozzle with anti-drip function, comprising an injection nozzle body (1), characterized in that: The top of the injection nozzle body (1) is connected to a connector (3), and a connecting bolt (2) is fitted onto the bottom of the surface of the connector (3). A sealing nozzle (4) is threaded onto the bottom of the surface of the injection nozzle body (1). A material hole (7) is opened through the center of the bottom of the sealing nozzle (4). A sealing assembly (8) is provided on the outer ring of the bottom of the injection nozzle body (1). The sealing assembly (8) includes a mounting groove (84). A spring (81) is fixedly connected to the bottom of the mounting groove (84). A top block (83) is fixedly connected to the bottom of the injection nozzle body (1). An annular groove (85) is opened around the bottom of the injection nozzle body (1). A graphite ring (82) is provided inside the annular groove (85). A damping shaft (10) is fixedly installed on the rear side of the bottom of the sealing nozzle (4). A rotating disk (5) is sleeved on the movable end of the damping shaft (10). An injection head (6) is connected to the bottom of the rotating disk (5). A graphite ring (9) is provided between the top of the rotating disk (5) and the bottom of the sealing nozzle (4).
2. The chocolate molding nozzle with anti-drip function according to claim 1, characterized in that: The bottom of the inner cavity of the injection nozzle body (1) is a funnel-shaped structure, and an annular limiting groove is provided at the bottom of the inner cavity of the sealing nozzle (4) and at the graphite ring (82).
3. A chocolate molding nozzle with anti-drip function according to claim 1, characterized in that: The number of mounting slots (84) is eight, and they are evenly distributed at the bottom of the injection nozzle body (1). The bottom of the top block (83) is in contact with the surface of the graphite ring (82).
4. A chocolate molding nozzle with anti-drip function according to claim 2, characterized in that: The outer ring of the rotating disk (5) is provided with anti-slip grooves, and there are four injection heads (6), each corresponding to the position of the material hole (7).
5. A chocolate molding nozzle with anti-drip function according to claim 1, characterized in that: The inner diameter of the injection head (6) is arranged in a counterclockwise rotation from large to small, and the graphite ring (9) is arranged on the outer ring of the material hole (7).
6. A chocolate molding nozzle with anti-drip function according to claim 1, characterized in that: The bottom of the surface of the injection nozzle body (1) is provided with a raised structure, and a sealing ring (11) is fitted on the surface of the injection nozzle body (1) and below the raised structure. The top of the sealing nozzle (4) is in close contact with the top of the sealing ring (11).