Hot nozzle of hot runner

Abstract

The utility model relates to the technical field of hot runners, and discloses a hot runner hot nozzle, which comprises a hot nozzle part comprising a body, a main runner, a branch runner, a nozzle head, a heating assembly, a controller and a reinforcing piece, wherein the main runner is arranged at the top in the body, the tops of the multiple sub-runners are all communicated with the bottom of the main runner, the bottom of each sub-runner is communicated with a nozzle head, the top of each nozzle head is connected with the body through a reinforcing piece, the bottom of each nozzle head extends out of the body, the heating assembly is arranged in the body, and the controller is arranged in the body. The controller is electrically connected with the heating assembly; and the protective cap is arranged at the lower part of the hot nozzle part and is used for protecting the nozzle head. According to the utility model, multi-path distribution of fluid is realized; the use of the reinforcing member enhances the stability of the structure, and the protective cap effectively protects the nozzle head, so that the service life is prolonged. Not only is the flowing path of fluid optimized, but also the overall stability and reliability are improved, so that the hot runner is more efficient and durable.

Description

Technical Field

[0001] The utility model relates to the technical field of hot runners, in particular to a hot runner nozzle. Background Art

[0002] Hot runner systems are heating components used in injection molds to inject molten plastic pellets into the mold cavity. Hot runner molds utilize a novel design that heats the sprue and runners of traditional or three-plate molds, eliminating the need to remove the runners and sprue during each molding cycle. Hot runners use heating to maintain the plastic in the runners and sprue at a molten state. Heating rods and coils are positioned near or in the center of the runners, maintaining a high temperature throughout the entire runner path from the injection molding machine nozzle outlet to the sprue, keeping the plastic molten. After a shutdown, the runners generally do not need to be opened to remove the solidified material; upon restart, the runners only need to be heated to the desired temperature. Therefore, hot runner processes are sometimes referred to as hot manifold systems or runnerless molding. The hot runner nozzle is a crucial component of a hot runner system, its primary function being to inject molten plastic pellets into the mold cavity. The hot runner system ensures that the plastic in the runner and gate remains in a molten state by heating, so that the runner and gate do not need to be removed during the injection molding process.

[0003] However, existing hot runner systems still have some problems that need to be solved. For example, in high-temperature and high-pressure working environments, the nozzle of the hot runner is prone to deformation or damage, which not only affects the normal flow of the fluid but may also cause production interruptions.

[0004] Therefore, there is an urgent need for a hot runner nozzle to solve the problem of poor stability of the nozzle head in the prior art. Utility Model Content

[0005] In view of this, the present invention proposes a hot runner nozzle, which aims to solve the problem of poor stability of the nozzle head in the prior art.

[0006] The utility model provides a hot runner nozzle, comprising:

[0007] The hot nozzle part includes the main body, main channel, branch channel, nozzle, heating component, controller and reinforcement;

[0008] The main flow channel is arranged at the top of the main body, and a plurality of branch flow channels are provided. The tops of the plurality of branch flow channels are connected to the bottom of the main flow channel, and the bottom of each branch flow channel is connected to a nozzle. The top of the nozzle is connected to the main body through a reinforcement, and the bottom of the nozzle extends out of the main body. The heating component is arranged in the main body, and the controller is arranged in the main body, and the controller is electrically connected to the heating component.

[0009] A protective cap is arranged at the lower part of the hot nozzle, and is used to protect the nozzle head.

[0010] Furthermore, the nozzle includes:

[0011] The nozzle is configured as a hollow structure and is used to output fluid;

[0012] An internal thread is provided at an upper portion of the nozzle core, and the internal thread is used for threaded connection with a lower portion of an outer side of the diverter channel;

[0013] An external thread is provided on the outer side of the nozzle core, and the external thread is used for threaded connection with the body.

[0014] Furthermore, the reinforcement is a magnetic ring, which is arranged on the top of the nozzle core, and an annular groove is provided at the connection between the main body and the reinforcement, and the annular groove is ferromagnetic.

[0015] Furthermore, the heating components are arranged around the main channel, the branch channel and the nozzle.

[0016] Furthermore, the hot runner nozzle further comprises:

[0017] A temperature sensor is provided on one side of the nozzle, and is used to monitor the temperature of the nozzle. The temperature sensor is electrically connected to the controller.

[0018] Furthermore, the hot runner nozzle further comprises:

[0019] The heat-insulating sleeve is sleeved on the outer side wall of the main body.

[0020] Furthermore, the main body hot runner nozzle also includes:

[0021] The heat insulation pad is embedded in the body and is also located on a side close to the thermal insulation sleeve.

[0022] Furthermore, the protective cap is in a concave shape, so that the bottoms of the nozzles are all located inside the protective cap to protect the nozzles.

[0023] Compared with existing technologies, the present invention offers the following advantages: by providing multiple branch channels at the bottom of the main channel, each connected to the nozzle at the bottom, multi-path fluid distribution is achieved; the integrated design of the heating assembly and controller ensures temperature control during fluid delivery, improving processing efficiency and product quality; the use of reinforcements enhances structural stability, while the protective cap effectively protects the nozzle, extending its service life. This invention not only optimizes the fluid flow path but also improves the overall stability and reliability of the system, making the hot runner system more efficient and durable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0025] Figure 1 A cross-sectional view of a hot runner nozzle provided in an embodiment of the present utility model;

[0026] Figure 2 A cross-sectional view of a nozzle provided in an embodiment of the present utility model;

[0027] Figure 3 A cross-sectional view of a protective cap provided in an embodiment of the present invention.

[0028] In the figure: 100, hot nozzle; 110, main body; 120, main channel; 130, branch channel; 140, nozzle head; 141, nozzle core; 142, internal thread; 143, external thread; 150, heating component; 160, controller; 170, reinforcement; 200, protective cap; 300, temperature sensor; 400, insulation cover; 500, insulation pad. DETAILED DESCRIPTION

[0029] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0030] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0031] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0032] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0033] See Figure 1-3 As shown, this embodiment provides a hot runner nozzle, including a hot nozzle part 100, including a main channel 120, a branch channel 130, a nozzle head 140, a heating component 150, a controller 160 and a reinforcement 170; wherein, the main channel 120 is arranged at the top of the main channel 110, and a plurality of branch channels 130 are provided. The tops of the plurality of branch channels 130 are connected to the bottom of the main channel 120, and the bottom of each branch channel 130 is connected to the nozzle head 140. The top of the nozzle head 140 is connected to the main body 110 through the reinforcement 170, and the bottom of the nozzle head 140 extends out of the main body 110. The heating component 150 is arranged in the main body 110, and the controller 160 is arranged in the main body 110. The controller 160 is electrically connected to the heating component 150; a protective cap 200 is arranged at the lower part of the hot nozzle part 100, and the protective cap 200 is used to protect the nozzle head 140.

[0034] As can be understood, the present invention achieves multi-path fluid distribution by providing a plurality of branch channels 130 at the bottom of the main channel 120, each of which is connected to the nozzle 140 at the bottom. The integrated design of the heating assembly 150 and the controller 160 ensures temperature control during fluid delivery, improving processing efficiency and product quality. The use of the reinforcement 170 enhances structural stability, while the protective cap 200 effectively protects the nozzle 140 and extends its service life. This utility model not only optimizes the fluid flow path but also improves the overall stability and reliability of the system, making the hot runner system more efficient and durable.

[0035] Specifically, the controller 160 may be a chip.

[0036] In some embodiments of the present application, the nozzle 140 includes a nozzle core 141, which is configured as a hollow structure and is used to output fluid; an internal thread 142, which is provided at the upper portion of the nozzle core 141 and is used to be screwed to the lower portion of the outer side of the diversion channel 130; and an external thread 143, which is provided at the outer side of the nozzle core 141 and is used to be screwed to the body 110.

[0037] As you can understand, nozzle 140 features a hollow structure to facilitate fluid delivery. Internal threads 142 are threadedly connected to manifold 130, while external threads 143 are threadedly connected to body 110. This design simplifies installation, improves the seal and stability of the connection, reduces the possibility of leakage, and facilitates subsequent maintenance and replacement. This structural design makes nozzle 140 installation and removal faster and more convenient, significantly improving production efficiency and reducing maintenance costs.

[0038] In some embodiments of the present application, the reinforcement 170 is a magnetic ring disposed on the top of the nozzle 141 , and an annular groove is provided at the connection between the body 110 and the reinforcement 170 , and the annular groove is ferromagnetic.

[0039] As can be understood, the use of a magnetic ring as reinforcement 170 and its magnetic fixation not only improves installation convenience but also enhances structural stability. The ferromagnetic design of the annular groove allows the magnetic ring to be firmly attached to the body 110, maintaining stability even in high temperature and vibration environments, thereby ensuring the reliability and long-term stable operation of the hot runner system. This design effectively solves the loosening problem existing in traditional reinforcement methods and improves the safety and stability of the entire system.

[0040] In some embodiments of the present application, the heating assembly 150 is disposed around the main channel 120 , the branch channel 130 and the nozzle 140 .

[0041] As can be appreciated, the heating assembly 150 is positioned around the main channel 120, branch channel 130, and nozzle 140, ensuring uniform heating throughout the entire fluid delivery path and preventing material degradation or product defects caused by uneven temperatures. This comprehensive heating approach improves thermal efficiency, shortens heating time, and enhances production efficiency. Furthermore, it helps maintain consistent fluid temperature, thereby improving the quality of the final product.

[0042] In some embodiments of the present application, the hot runner nozzle further includes a temperature sensor 300 disposed on one side of the nozzle head 140 . The temperature sensor 300 is used to monitor the temperature of the nozzle head 140 , and the temperature sensor 300 is electrically connected to the controller 160 .

[0043] As can be appreciated, the addition of temperature sensor 300 provides real-time temperature monitoring for the hot runner system. Electrically connected to controller 160, it enables precise temperature regulation, ensuring fluid flow at the optimal temperature, thereby improving product quality and consistency. This also helps promptly detect abnormalities and prevent damage to the equipment caused by overheating or undercooling. This intelligent temperature control system significantly enhances the safety and controllability of the production process.

[0044] In some embodiments of the present application, the hot runner nozzle further includes a heat-insulating sleeve 400 , which is sleeved on the outer wall of the body 110 .

[0045] As can be appreciated, the installation of insulation sleeve 400 effectively reduces heat loss, maintains a stable temperature in the hot runner system, and reduces energy consumption. This not only improves energy efficiency but also helps maintain a constant operating temperature, which is crucial for improving product quality and production efficiency. The use of insulation sleeve 400 also reduces heat radiation in the working environment, improving operating conditions and enhancing work comfort.

[0046] In some embodiments of the present application, the hot runner nozzle of the main body 110 further includes a thermal insulation pad 500 , which is embedded inside the main body 110 . The thermal insulation pad 500 is also located on a side close to the thermal insulation sleeve 400 .

[0047] As you can understand, the embedded thermal insulation pad 500 further optimizes the thermal insulation performance of the hot runner system. Located inside the main body 110, near the insulation sleeve 400, it effectively isolates the high-temperature area from the external environment, reducing heat loss. This design not only improves energy efficiency but also protects operators from high-temperature hazards, increasing the safety of the working environment. The use of the thermal insulation pad 500 also helps extend the service life of the equipment and reduce the number of repairs.

[0048] In some embodiments of the present application, the protective cap 200 is concave-shaped, so that the bottoms of the nozzles 140 are all located inside the protective cap 200 to protect the nozzles 140 .

[0049] As can be appreciated, the concave-shaped design of the protective cap 200 cleverly encloses the bottoms of the nozzles 140, forming a protective, enclosed space. This structure effectively prevents foreign matter from entering the nozzles 140, preventing contamination and clogging, thereby extending the service life of the nozzles 140 and ensuring smooth fluid transfer. Furthermore, this design simplifies cleaning, making maintenance easier and faster.

[0050] The working principle of this utility model is as follows: the main channel 120 conveys the molten plastic to the branch channel 130, which further divides the fluid into individual nozzles 140, ensuring uniform distribution of the fluid. The heating assembly 150 is arranged around the main channel 120, the branch channel 130, and the nozzle 140, providing continuous and uniform heat to maintain the fluidity of the plastic melt. The controller 160 adjusts the heating power based on the data feedback from the temperature sensor 300 to achieve precise control of the temperature of the entire system. The reinforcement 170 is used to enhance the structural stability of the hot runner, especially in high temperature and vibration environments. The protective cap 200 protects the nozzle 140 from external contamination and physical damage, extending its service life. All components are tightly integrated to form a highly efficient and coordinated hot runner system, improving production efficiency and product quality.

[0051] Those skilled in the art will understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A hot runner nozzle, characterized in that: include: The hot nozzle part includes the main body, main channel, branch channel, nozzle, heating component, controller and reinforcement; The main flow channel is arranged at the top of the main body, and a plurality of branch flow channels are provided. The tops of the plurality of branch flow channels are connected to the bottom of the main flow channel, and the bottom of each branch flow channel is connected to a nozzle. The top of the nozzle is connected to the main body through a reinforcement, and the bottom of the nozzle extends out of the main body. The heating component is arranged in the main body, and the controller is arranged in the main body, and the controller is electrically connected to the heating component. A protective cap is arranged at the lower part of the hot nozzle, and is used to protect the nozzle head.

2. The hot runner nozzle according to claim 1, characterized in that: The nozzle includes: The nozzle is configured as a hollow structure and is used to output fluid; An internal thread is provided at an upper portion of the nozzle core, and the internal thread is used for threaded connection with a lower portion of an outer side of the diverter channel; An external thread is provided on the outer side of the nozzle core, and the external thread is used for threaded connection with the body.

3. The hot runner nozzle according to claim 2, characterized in that: The reinforcing member is a magnetic ring, which is arranged on the top of the nozzle core. An annular groove is provided at the connection between the main body and the reinforcing member, and the annular groove is ferromagnetic.

4. The hot runner nozzle according to claim 1, characterized in that: The heating components are arranged around the main channel, the branch channel and the nozzle.

5. The hot runner nozzle according to claim 1, characterized in that: The hot runner nozzle also includes: A temperature sensor is provided on one side of the nozzle, and is used to monitor the temperature of the nozzle. The temperature sensor is electrically connected to the controller.

6. The hot runner nozzle according to claim 1, characterized in that: The hot runner nozzle also includes: The heat-insulating sleeve is sleeved on the outer side wall of the main body.

7. The hot runner nozzle according to claim 6, characterized in that: The hot runner nozzle also includes: The heat insulation pad is embedded in the body and is also located on a side close to the thermal insulation sleeve.

8. The hot runner nozzle according to claim 1, characterized in that: The protective cap is in a concave shape so that the bottoms of the nozzles are all located inside the protective cap to protect the nozzles.

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