Hot runner heating structure

Abstract

The utility model discloses a hot runner heating structure which comprises a protection pipe sleeve, the top of the protection pipe sleeve is connected with a fixing ring in a clamped mode, a sealing ring is installed on the top of the fixing ring, a connector is fixedly connected to the top of the sealing ring, a plastic connecting opening is formed in the top of the connector, a branch pipe is installed in the protection pipe sleeve, and a plastic connecting opening is formed in the top of the branch pipe. A limiting groove is formed in the branch pipe, a heat conduction copper pipe is fixedly connected into the limiting groove, a limiting ring is fixedly connected to the top of the branch pipe, a connecting opening is formed in the limiting ring, a base plate is installed at the bottom of the protection pipe sleeve, and a conical opening is fixedly connected to the bottom of the base plate. In the actual use process, the heat conduction copper pipe can effectively conduct heat to a plastic melt flowing through the heat conduction copper pipe, it is ensured that the melt can be evenly heated through the vertical configuration of the plastic connecting opening and the connecting opening, and the equipment is easier to install, adjust and maintain through the addition of the sleeve buckles and the annular array design of the inserting openings.

Description

Technical Field

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

[0002] A hot runner is a heating component system used in injection molds. Its main function is to inject melted plastic particles into the mold cavity. The hot runner heating structure refers to the heating elements and control system in the hot runner system, which are used to maintain the molten state and temperature control of the plastic in the runner. These structures usually include heating elements (such as heating wires or heating tubes) and hot plates. By precisely controlling the temperature of the heating structure, the plastic can flow smoothly during the injection molding process and achieve the desired molding effect.

[0003] After searching, the Chinese patent with the announcement number CN207327493U discloses a heating structure of a hot runner system. The patent records that the cross-section through the die hole is circular, and the outer circumferential wall of the heating tube is provided with a wiring groove along its axial direction. The outer circumferential wall of the heating tube is provided with heating grooves on both sides of the wiring groove. One end of the heating groove is connected to the wiring groove. A heating wire is embedded in the heating groove. One end of the heating wire passes through the wiring groove on the heating tube located above it and extends to the outside of the mold. When multiple heating tubes are sleeved on the hot nozzle, the wiring groove is provided to prevent the heating wire from touching the die hole. Compared with machining the mold, machining the wiring groove is simpler and has a lower cost.

[0004] The equipment in this solution lacks an effective socket design, resulting in unstable connection between the hot runner system and other equipment, loosening or disconnection, affecting the continuity and stability of production. Equipment with poor flexibility is usually difficult to adapt to workpieces of different types and specifications. In order to solve this technical problem, the utility model proposes a hot runner heating structure. Summary of the Invention

[0005] (1) Technical problems solved

[0006] The equipment in this solution lacks an effective socket design, resulting in unstable connection between the hot runner system and other equipment, loosening or disconnection, affecting the continuity and stability of production. Equipment with poor flexibility is usually difficult to adapt to workpieces of different types and specifications. In order to solve this technical problem, the utility model proposes a hot runner heating structure.

[0007] (2) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a hot runner heating structure, including a protective tube sleeve, the top of the protective tube sleeve is snap-connected with a fixing ring, the top of the fixing ring is installed with a sealing ring, the top of the sealing ring is fixedly connected with a joint, the top of the joint is provided with a plastic connecting port, a branch pipe is installed inside the protective tube sleeve, a limiting groove is provided inside the branch pipe, a heat-conducting copper pipe is fixedly connected to the inside of the limiting groove, the top of the branch pipe is fixedly connected to the limiting ring, the inside of the limiting ring is provided with a connecting port, the bottom of the protective tube sleeve is installed with a chassis, the bottom of the chassis is fixedly connected with a tapered port, and the bottom of the tapered port is fixedly connected with a nozzle.

[0009] Preferably, a buckle is fixedly connected to the bottom of the chassis, and a socket is provided on the top of the chassis.

[0010] Preferably, the sockets are arranged in a ring array, and are in the shape of circular through holes.

[0011] Preferably, the plastic connection port and the connecting port are arranged vertically relative to each other.

[0012] Preferably, the branch pipe is made of copper.

[0013] Preferably, the buckle is mounted inside the nozzle.

[0014] (3) Beneficial effects

[0015] The utility model provides a hot runner heating structure with the following beneficial effects:

[0016] (1) The bottom of the plate is equipped with a buckle and a ring array of sockets, which enhances the stability of the equipment and the convenience of operation. The addition of the buckle and the ring array design of the socket make the equipment easier to install, adjust and maintain, while improving the heat conduction efficiency and the flow effect of the melt. These structural improvements make the equipment more stable.

[0017] (2) The precise heating control of the plastic melt is achieved through the heat-conducting copper tube and the limit groove in the branch pipe. The heat-conducting copper tube can effectively transfer heat to the plastic melt flowing through it, and the vertical configuration of the plastic port and the connection port ensures that the melt can be heated evenly. This precise heating control not only improves the quality and consistency of the molded parts, but also can be flexibly adjusted according to the specific plastic type and molding requirements to meet different production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the branch pipe structure of the present utility model;

[0020] Figure 3 This is a schematic diagram of the chassis structure of the present utility model;

[0021] Figure 4 It is a side structural diagram of the utility model.

[0022] In the figure: 1. Protective tube sleeve; 2. Fixing ring; 3. Sealing ring; 4. Connector; 5. Plastic joint; 6. Chassis; 7. Conical mouth; 8. Nozzle; 9. Limiting ring; 10. Connecting port; 11. Thermal copper tube; 12. Branch pipe; 13. Socket; 14. Buckle. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] See also Figure 1-4 , the utility model provides a technical solution:

[0025] Embodiment 1: A hot runner heating structure includes a protective tube sleeve 1, the top of the protective tube sleeve 1 is snap-connected with a fixing ring 2, the top of the fixing ring 2 is installed with a sealing ring 3, the top of the sealing ring 3 is fixedly connected with a joint 4, and the top of the joint 4 is provided with a plastic connection port 5. The combination of the protective tube sleeve 1, the fixing ring 2, the sealing ring 3 and the joint 4 constitutes a stable and sealed heating frame. The protective tube sleeve 1 is snap-connected with the fixing ring 2, the top of the fixing ring 2 is installed with a sealing ring 3, and the sealing ring 3 is fixedly connected to the joint 4, ensuring that the heat inside the heating system will not be lost, while effectively preventing To prevent the influence of the external environment on the heating area, and to ensure that the plastic melt flows and is heated in a stable thermal environment, a branch pipe 12 is installed inside the protective tube sleeve 1, and a limiting groove is provided inside the branch pipe 12. A heat-conducting copper pipe 11 is fixedly connected to the inside of the limiting groove. The top of the branch pipe 12 is fixedly connected to the limiting ring 9, and a connecting port 10 is provided inside the limiting ring 9. The heat-conducting copper pipe 11 installed inside the branch pipe 12 is the core component of the heating. The heat-conducting copper pipe 11 is fixedly connected through the internal limiting groove, which can effectively conduct heat to the plastic melt flowing through. The plastic port 5 is connected to the connecting port 5. The port 10 is relatively vertically configured. This design ensures smooth entry of the plastic melt and uniform heating throughout the entire flow process. This precise heat control not only improves the quality and consistency of the molded parts, but also can be flexibly adjusted according to different plastic types and production requirements. A chassis 6 is installed at the bottom of the protective tube sleeve 1. A tapered port 7 is fixedly connected to the bottom of the chassis 6. The function of the tapered port 7 is to fixedly connect the chassis 6 and the nozzle 8. It is located at the bottom of the chassis 6 and ensures a stable mechanical connection so that the nozzle 8 can accurately dock with the nozzle 8 of the injection molding machine and maintain a stable position and angle. This design ensures that the melt can be accurately injected into the mold, thereby ensuring the dimensional accuracy and appearance quality of the molded parts. The bottom of the tapered port 7 is fixedly connected with the nozzle 8. The nozzle 8 is a key component in the hot runner system responsible for injecting the heated plastic melt into the mold. It is installed at the top of the tapered port 7. Through precise design and processing, the stability and uniformity of the melt flow are ensured. The design of the nozzle 8 not only affects the flow and injection speed of the melt, but is also directly related to the surface quality and structural integrity of the molded parts.

[0026] Example 2: The difference between this example and Example 1 is that, the bottom of the chassis 6 is fixedly connected with a buckle 14, and the limiting groove is a key component for fixing the heat-conducting copper tube 11 inside the branch tube 12. Its design enables the heat-conducting copper tube 11 to be accurately installed inside the branch tube 12, ensuring the efficiency and stability of heat conduction. The existence of the limiting groove effectively prevents the heat-conducting copper tube 11 from moving or dislocating during operation, thereby ensuring that heat can be conducted to the plastic melt according to the design requirements. A socket 13 is opened on the top of the chassis 6, and the socket 13 is in a ring array, and the shape of the socket 13 is a circular through hole, which is connected to the plastic port 5 The branch pipe 12 is arranged vertically relative to the connecting port 10. It is made of copper. Copper is an excellent thermal conductive material that can quickly and evenly transfer the heat transmitted by the heater to the plastic melt, ensuring that the melt maintains a stable temperature and uniform heating state during the flow process. The branch pipe 12 is an important component of the hot runner system. Its main function is to connect the pipeline between the main channel and the nozzle 8. It ensures that the melt flows smoothly from the main channel to the nozzle 8, while maintaining heat conduction and stability during the flow process, thereby ensuring uniform heating and flow of the plastic melt during the injection molding process. The buckle 14 is installed inside the nozzle 8.

[0027] During operation, a stable and sealed heating frame is constructed by the combination of the protective tube sleeve 1, the fixing ring 2, the sealing ring 3 and the joint 4. Among them, the heat-conducting copper tube 11 installed in the branch pipe 12 is the core component of the heating, which can effectively transfer heat to the plastic melt flowing through. The vertical configuration of the plastic port 5 and the connecting port 10 ensures smooth entry and uniform heating of the melt. The design of the chassis 6, the tapered port 7 and the nozzle 8 ensures the stable connection between the equipment and the injection molding machine and the precise injection of the melt. The buckle 14 added to the bottom of the chassis 6 and the annular array of sockets 13 improve the stability and ease of operation of the equipment, and improve the efficiency of heat conduction and melt flow. These components together ensure that the equipment can operate efficiently and stably during the injection molding process, thereby improving production efficiency and the quality level of molded parts.

[0028] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

Claims

1. A hot runner heating structure, characterized in that: The invention comprises a protective tube sleeve (1), wherein the top of the protective tube sleeve (1) is snap-connected with a fixing ring (2), the top of the fixing ring (2) is installed with a sealing ring (3), the top of the sealing ring (3) is fixedly connected with a joint (4), the top of the joint (4) is provided with a plastic connection port (5), a branch pipe (12) is installed inside the protective tube sleeve (1), a limiting groove is provided inside the branch pipe (12), a heat-conducting copper pipe (11) is fixedly connected inside the limiting groove, the top of the branch pipe (12) is fixedly connected with a limiting ring (9), the inside of the limiting ring (9) is provided with a connection port (10), a chassis (6) is installed at the bottom of the protective tube sleeve (1), the bottom of the chassis (6) is fixedly connected with a conical port (7), and the bottom of the conical port (7) is fixedly connected with a nozzle (8).

2. The hot runner heating structure according to claim 1, characterized in that: The bottom of the chassis (6) is fixedly connected with a buckle (14), and the top of the chassis (6) is provided with a socket (13).

3. The hot runner heating structure according to claim 2, characterized in that: The sockets (13) are arranged in a ring array, and the sockets (13) are in the shape of circular through holes.

4. The hot runner heating structure according to claim 1, characterized in that: The plastic connection port (5) and the connection port (10) are arranged relatively vertically.

5. The hot runner heating structure according to claim 1, characterized in that: The branch pipe (12) is made of copper.

6. The hot runner heating structure according to claim 2, characterized in that: The buckle (14) is installed inside the nozzle (8).

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