Heating device of hot runner

Abstract

The utility model provides a heating device of a hot runner. The heating device comprises a pipeline, a heating ring and an infrared temperature detector, the heating ring is arranged on the outer wall of the pipeline, a heating ring lead is arranged at the head end of the pipeline, and the heating ring is connected with the heating ring lead through a fixing assembly; the infrared temperature detectors are symmetrically arranged on the two sides of the pipeline according to a preset distance; a nozzle head is arranged at the tail end of the pipeline, and the nozzle head is embedded into the tail end of the pipeline; the problems of noise, errors, short service life and the like of a hot runner heating temperature detector in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot runner heating temperature detection, in particular to a heating device for a hot runner. Background Art

[0002] A hot runner is a heating component system used in an injection mold to inject molten plastic particles into the cavity of the mold; a hot runner mold is a brand-new structure that heats the sprue and runner of a traditional mold or a three-plate mold, and does not require the sprue and runner to be removed during each molding.

[0003] Common hot runner heating temperature detection uses thermocouples or thermistors, which are installed in the hot runner.

[0004] Combined with the above, the hot runner heating temperature detectors in the prior art have problems such as noise, error, and short service life. Summary of the Utility Model

[0005] In view of the above problems, the present utility model is proposed to provide a heating device for a hot runner that overcomes or at least partially solves the above problems.

[0006] To solve the above problems, the present utility model discloses a heating device for a hot runner, including a pipe, a heating coil, and an infrared temperature detector; the heating coil is arranged on the outer wall of the pipe, and a heating coil lead is provided at the head end of the pipe, and the heating coil is connected to the heating coil lead through a fixing component; the infrared temperature detectors are symmetrically arranged on both sides of the pipe at a preset distance; a nozzle head is provided at the tail end of the pipe, and the nozzle head is embedded in the inner part of the tail end of the pipe.

[0007] Preferably, the heating coil is arranged in a spiral shape.

[0008] Preferably, an outer sheath is provided at one end of the heating coil away from the pipe; the infrared temperature detectors are symmetrically arranged on both sides of the outer sheath at a preset distance.

[0009] Preferably, the infrared temperature detectors are detachably installed on both sides of the outer sheath through clamps.

[0010] Preferably, the pipe includes a connecting plate; the connecting plate is connected to the head end of the pipe and is connected to the heating coil lead through the fixing component.

[0011] Preferably, at least one set of connection holes are symmetrically provided at both ends of the connecting plate.

[0012] Preferably, a connecting component is provided at one end of the nozzle head away from the tail end of the pipe.

[0013] The utility model has the following advantages: the spiral heating coil can uniformly heat the pipeline, ensuring the uniform temperature of the materials in the hot runner, improving the quality and efficiency of injection molding; the real-time monitoring of the infrared temperature detector can accurately control the heating temperature, avoiding overheating or uneven temperature; at the same time, the infrared temperature detector has no noise and a long service life, etc.; the embedded connection between the nozzle head and the tail end of the pipeline, and the setting of the connection components on the nozzle head ensure the stability and sealing performance of the nozzle during use, avoiding material leakage and improving the stability of the production process and the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0015] Figure 1 is a schematic diagram of the main structure of a heating device for a hot runner provided by an embodiment of the present utility model.

[0016] Figure 2 is a schematic diagram of the infrared temperature detector structure of a heating device for a hot runner provided by an embodiment of the present utility model.

[0017] In the figure: 100, pipeline; 101, fixing component; 102, connecting plate; 121, connecting hole; 200, heating coil; 201, outer sheath; 300, infrared temperature detector; 400, heating coil lead; 500, nozzle head; 501, connecting component. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model; generally, the components of the embodiments of the present utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] The following will describe in detail some embodiments of the present application with reference to the drawings. Without conflict, the various embodiments and the various features in the embodiments can be combined with each other.

[0020] Please refer to Figure 1 and Figure 2As shown in the figure, an embodiment of the present utility model provides a heating device for a hot runner, which includes a pipe 100, a heating coil 200, and an infrared temperature detector 300; the heating coil 200 is arranged on the outer wall of the pipe 100, and a heating coil lead 400 is provided at the head end of the pipe 100, and the heating coil 200 is connected to the heating coil lead 400 through a fixing component 101; the infrared temperature detector 300 is symmetrically arranged on both sides of the pipe 100 at a preset distance; a nozzle head 500 is provided at the tail end of the pipe 100, and the nozzle head 500 is embedded in the inner part of the tail end of the pipe 100.

[0021] It should be noted that the above infrared temperature detector 300 can measure the temperature without contacting the heating element, avoiding potential damage to the heating element; it can provide real-time temperature data, which helps to monitor the temperature change during the heating process and ensure heating uniformity and accuracy; precise temperature control helps to improve the quality of the final product and reduce defects caused by improper temperature control; by optimizing the heating process, the infrared temperature detector 300 helps to improve energy utilization efficiency and reduce production costs.

[0022] Furthermore, a temperature alarm can be set to promptly detect and handle abnormal situations such as overheating, improving production safety; it can automatically record temperature data, facilitating data analysis of the production process and process optimization, etc.

[0023] As a preferred implementation manner, the heating coil 200 is arranged in a spiral shape; an outer sheath 201 is provided at one end of the heating coil 200 away from the pipe 100; the infrared temperature detector 300 is symmetrically arranged on both sides of the outer sheath 201 at a preset distance; the infrared temperature detector 300 is detachably installed on both sides of the outer sheath 201 through a fixture; specifically, the spiral heating coil 200 can ensure more uniform temperature on the surface of the pipe, thereby improving heating efficiency and the fluidity of the material in the hot runner, which is beneficial to improving the quality and production efficiency of injection molded products; the setting of the outer sheath 201 at one end of the heating coil 200 away from the pipe can not only protect the heating element from the influence of the external environment, extend the service life, but also play a heat insulation role, reduce heat dissipation, and improve energy utilization efficiency; the infrared temperature detector 300 is symmetrically arranged on both sides of the outer sheath 201, which can monitor the temperature of the heating area in real time and ensure precise control of the heating process; through the symmetrical setting at a preset distance, more comprehensive and accurate temperature data can be obtained, which helps to optimize the temperature control strategy.

[0024] Furthermore, the infrared temperature detector 300 is detachably installed through a fixture, which is convenient for the installation, adjustment, and maintenance of the equipment, reduces the downtime, and improves the production efficiency; this setting enables the rapid replacement or calibration of the temperature detector under different working conditions to ensure the stable operation of the system.

[0025] As a preferred embodiment, the pipeline 100 includes a connecting plate 102; the connecting plate 102 is connected to the head end of the pipeline 100 and is connected to the heating coil lead 400 through the fixing component 101; at least one set of connecting holes 121 are symmetrically arranged at both ends of the connecting plate 102; specifically, the connection setting of the connecting plate 102 and the head end of the pipeline 100, through the firm combination of the fixing component 101 and the heating coil lead 400, ensures the stable connection between the heating component and the pipeline 100, improving the structural strength and stability of the entire system; through the connecting holes 121 on the connecting plate 102, standard fixing parts (such as bolts, nuts, etc.) can be used to achieve the quick installation and disassembly of the heating device and external equipment or framework, simplifying the installation and maintenance process of the equipment; at least one set of symmetrically arranged connecting holes 121 enables the heating device to flexibly adapt to different installation positions and layout requirements.

[0026] Furthermore, the use of the above-mentioned connecting plate 102 makes the installation and disassembly of the heating device more convenient, reducing the time required for equipment adjustment and maintenance, thus improving production efficiency; the quick connection achieved through the connecting plate 102 and the fixing component 101 can reduce the wear and damage caused by equipment disassembly and installation, reducing the maintenance cost.

[0027] As a preferred embodiment, a connecting component 501 is provided at one end of the nozzle head 500 away from the tail end of the pipeline 100; specifically, the connecting component 501 ensures that the nozzle head 500 can be accurately positioned, realizing a quick and stable connection with the mold or other equipment, improving production efficiency; the use of the connecting component 501 can enhance the sealing performance between the nozzle head 500 and the mold, preventing the leakage of molten material, ensuring the quality and safety of injection molding; through the connecting component 501, the replacement and maintenance of the nozzle head 500 become more convenient, without the need to disassemble the entire heating system, reducing the maintenance cost and downtime.

[0028] Furthermore, the setting of the above-mentioned connecting component 501 enables the nozzle head to adapt to molds of different sizes and shapes, improving the flexibility and adaptability of the system; the connecting component 501 helps to maintain the thermal contact between the nozzle head 500 and the mold, optimizing the temperature control, ensuring the uniform heating and flow of the molten material, and improving the quality of injection molded parts; through the tight connection of the connecting component 501, the heat loss between the hot runner heating device and the mold can be reduced, improving the energy utilization efficiency.

[0029] Working principle: The heating coil 200 is tightly wrapped around the outer wall of the pipeline 100 in a spiral shape to form a uniform heating surface. This setting can ensure that the material inside the pipeline 100 is uniformly heated when flowing through, avoiding local overheating or cold spots, and ensuring the fluidity and processing quality of the material. The infrared temperature detector 300 is symmetrically installed on both sides of the outer sheath 201 of the heating coil 200 at a preset distance and can be quickly installed and disassembled through a fixture. The detector can real-time monitor the temperatures of the heating coil 200 and the surface of the pipeline 100, ensure precise temperature control during the heating process, timely feedback temperature data for dynamic adjustment, and avoid the influence of temperature fluctuations on the material properties. The nozzle head 500 is embedded inside the tail end of the pipeline 100 and tightly cooperates with the connecting component 501, ensuring the precise alignment and stable connection between the nozzle head 500 and the mold or other processing equipment. This setting not only improves the accuracy and stability of the injection molding process but also enhances the system's sealing performance, prevents material leakage, and ensures the quality of the injection molded parts. The connection between the connecting plate 102 and the head end of the pipeline 100 is firmly combined with the heating coil lead 400 through the fixing component 101. At the same time, connection holes 121 are provided at both ends of the connecting plate 102, facilitating the connection and fixation of the heating device to external equipment, simplifying the installation and maintenance process, and improving production efficiency. Through the spiral setting of the heating coil 200, the real-time monitoring of the infrared temperature detector 300, the precise alignment of the nozzle head 500 and the connecting component 501, and the optimized setting of the connecting plate 102, the present utility model jointly realizes the efficient, stable, and precise control during the hot runner heating process; enhances the flexibility, maintenance convenience, and production efficiency of the equipment, etc.

[0030] Finally, it should also be noted that in this article, relational terms such as first and second are only 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. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or terminal device comprising a series of elements not only includes those elements but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or terminal device. Without more limitations, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or terminal device comprising the said element.

[0031] The above has introduced in detail a heating device for a hot runner provided by the present utility model. Specific examples are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. A heating device for a hot runner, characterized in that: Includes pipes, heating coils and infrared temperature detectors; The heating coil is arranged on the outer wall of the pipeline, and a heating coil lead is arranged at the head end of the pipeline, and the heating coil is connected to the heating coil lead through a fixing component; The infrared temperature detectors are symmetrically arranged on both sides of the pipeline at a preset distance; The tail end of the pipe is provided with a nozzle head, and the nozzle head is embedded in the inside of the tail end of the pipe.

2. The hot runner heating device according to claim 1, characterized in that: The heating coil is arranged in a spiral shape.

3. The hot runner heating device according to claim 2, characterized in that: An outer sheath is provided at one end of the heating coil away from the pipeline; The infrared temperature detectors are symmetrically arranged on both sides of the outer sheath according to a preset distance.

4. The hot runner heating device according to claim 3, characterized in that: The infrared temperature detector is detachably mounted on both sides of the outer sheath through a clamp.

5. The hot runner heating device according to claim 1, characterized in that: The pipeline includes a connecting plate; The connecting plate is connected to the pipe head end and is connected to the heating coil lead through the fixing assembly.

6. The hot runner heating device according to claim 5, characterized in that: At least one group of connection holes is symmetrically arranged on both ends of the connection plate.

7. The hot runner heating device according to claim 1, characterized in that: The nozzle head is provided with a connecting assembly at one end away from the pipe tail end.

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