An injection mold system

Abstract

The utility model discloses an injection mold system, including mould body, the characterized is still including electromagnetic heating module and controllable air cooling module, and electromagnetic heating module is used for heating mould body, and controllable air cooling module is used for air cooling to mould body. Advantage is simple structure, and the mould passes through electromagnetic heating, and the heating speed is fast, and the thermal efficiency is high, and the temperature upper limit is higher, and temperature is uniform and stable, can fundamentally overcome the traditional oil temperature machine slow heating, water temperature machine boiling point low defect, controllable air cooling module can realize the regulation of air volume and air velocity, has realized the cooling of mould as needed, can effectively avoid the product internal stress, cracking, warping and performance degradation etc. problem because of the rapid cooling.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine technology, and in particular to an injection mold system. Background Technology

[0002] In conventional injection molding production, mold temperature control typically relies on mold temperature controllers using water or oil as the medium. However, for certain special polymer materials (such as ultra-high molecular weight polyethylene), conventional injection molding presents two major technical challenges: First, the heating requirements. These special polymer materials demand high mold temperatures (typically above 120°C), requiring uniformity and stability. Water-heated mold temperature controllers used in conventional injection molding machines cannot meet these requirements due to their boiling point limitations, while oil-heated controllers suffer from slow heating rates, insufficient temperature control accuracy, and the risk of leakage and contamination. Second, the cooling requirements. These special polymer materials are extremely sensitive to cooling rates. Conventional rapid cooling methods, such as water cooling, can easily lead to cracking, warping, or performance degradation due to excessive internal stress. Slow and uniform natural cooling is essential. Currently, existing technology lacks a mold temperature control solution that can simultaneously meet these specific heating and cooling requirements, preventing the stable and efficient production of many high-performance special polymer materials on conventional injection molding machines. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide an injection mold system that can simultaneously meet specific heating and cooling requirements and can be used for molding high-performance special polymer materials.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: An injection mold system includes a mold body, an electromagnetic heating module, and a controllable air cooling module. The electromagnetic heating module is used to heat the mold body, and the controllable air cooling module is used to cool the mold body.

[0005] The electromagnetic heating module includes an electromagnetic heating coil wound around the outside of the mold body, and the electromagnetic heating coil is powered and controlled by an electromagnetic heater.

[0006] The controllable air-cooling module includes at least one pair of industrial fans disposed on both sides of the mold body.

[0007] The mold body is provided with an injection molding machine frame, and the industrial fan is installed on the injection molding machine frame, with the industrial fan blowing air towards the mold body.

[0008] The industrial fan is movably mounted on the outer frame of the injection molding machine.

[0009] It also includes a fixed template and a moving template. The mold body includes a mold frame, which includes a fixed mold frame and a moving mold frame. The fixed mold frame is installed on the fixed template, and the moving mold frame is installed on the moving template. Heat insulation plates are respectively provided between the connection surfaces of the fixed mold frame and the fixed template, and between the connection surfaces of the moving mold frame and the moving template.

[0010] It also includes a control system, which controls the electromagnetic heating module to work during the injection stage to heat and keep the mold body warm, and switches to control the controllable air cooling module to work after the pressure holding is completed, for cooling the mold body.

[0011] The mold body is provided with multiple temperature sensing points evenly distributed on it, and each temperature sensing point is equipped with a temperature sensor for sensing temperature.

[0012] Compared with existing technologies, the advantages of this utility model are as follows: The structure is simple; the mold is heated electromagnetically, resulting in rapid heating, high thermal efficiency, a high upper temperature limit, and uniform and stable temperature. This fundamentally overcomes the shortcomings of traditional oil-heating machines (slow heating) and water-heating machines (low boiling point). Furthermore, the use of electromagnetic heating eliminates the need for corresponding flow channels, simplifying mold design and effectively reducing design costs. The controllable air-cooling module allows for adjustment of airflow and speed, enabling on-demand cooling of the mold and effectively preventing problems such as internal stress, cracking, warping, and performance degradation caused by rapid cooling. Through the cooperation of the electromagnetic heating module and the controllable air-cooling module, instantaneous and powerful heating is integrated with gentle and controllable cooling, forming an intelligent system capable of actively and precisely controlling the mold temperature field. This system can meet the stringent contradictory requirements of special polymer materials for high-temperature heating and slow cooling. Attached Figure Description

[0013] Figure 1 This is a first three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention; Figure 3 This is a three-dimensional structural diagram of the mold body and the fixed template in this utility model, showing the fit and installation of the fixed template. Detailed Implementation

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0015] As shown in the figure, an injection mold system includes a mold body 1, an electromagnetic heating module 2, and a controllable air cooling module 3. The electromagnetic heating module 2 is used to heat the mold body 1, and the controllable air cooling module 3 is used to cool the mold body 1.

[0016] In this specific embodiment, the electromagnetic heating module 2 includes an electromagnetic heating coil wound around the outside of the mold body 1. The electromagnetic heating coil is powered and controlled by an electromagnetic heater (not shown in the figure). The electromagnetic heating coil wound around the outside of the mold body 1 enables direct, efficient, and uniform heating of the mold. This externally wound design results in low heat loss and a fast heating response. Precise temperature control can be achieved through the control of the electromagnetic heater.

[0017] In this specific embodiment, the controllable air-cooling module 3 includes at least one pair of industrial fans disposed on both sides of the mold body 1. The controllable air-cooling module 3 uses industrial fans, which are low-cost and easy to control. By arranging industrial fans on both sides of the mold, it is ensured that the cooling airflow can cover the core area, thereby achieving uniform and controllable cooling.

[0018] In this specific embodiment, an injection molding machine outer frame 5 is provided on the outside of the mold body 1. An industrial fan is installed on the injection molding machine outer frame 5, and the industrial fan blows air towards the mold body 1. By making reasonable use of the existing injection molding machine outer frame 5 as the mounting base for the industrial fan, the structure is compact, does not interfere with other moving parts of the injection molding machine, and ensures the stability and safety of production.

[0019] In this specific embodiment, the industrial fan is movably mounted on the outer frame 5 of the injection molding machine, allowing the fan to move synchronously with the mold. This ensures that the cooling airflow is always precisely aligned with the mold during the mold opening and closing process, avoiding cooling blind spots or efficiency reduction caused by mold movement, thereby guaranteeing the uniformity and consistency of the entire cooling process.

[0020] In this specific embodiment, a fixed template 6 and a movable template 7 are also included. The mold body 1 includes a mold frame (not shown in the figure), which includes a fixed mold frame and a movable mold frame. The fixed mold frame is installed on the fixed template 6, and the movable mold frame is installed on the movable template 7. Heat insulation plates 8 are respectively provided between the connection surfaces of the fixed mold frame and the fixed template 6, and between the connection surfaces of the movable mold frame and the movable template 7. The heat insulation plates 8 block the heat conduction path to the fixed template 6 and the movable template 7, thereby reducing heat loss and saving energy, and preventing deformation or damage to the template due to overheating, thus ensuring the service life of the template.

[0021] In this specific embodiment, a control system (not shown in the figure) is also included. During the injection stage, the control system controls the electromagnetic heating module 2 to heat and maintain the temperature of the mold body 1. After the pressure holding period, it switches to control the controllable air-cooling module 3 to cool the mold body 1. The control system can be a programmable logic controller (PLC) to achieve automated and seamless switching between the heating and cooling processes. By precisely controlling the production cycle at each stage, the repeatability and stability of the process are ensured, fundamentally avoiding human error and guaranteeing the uniformity of product quality.

[0022] In this specific embodiment, multiple temperature sensing points are evenly distributed on the mold body 1, and each temperature sensing point is equipped with a temperature sensor (not shown in the figure) for sensing temperature. By using multiple evenly distributed temperature sensing points in combination with the temperature sensor, real-time temperature data covering the key areas of the mold is provided to the control system. This allows the system to accurately sense the actual temperature changes of the mold body 1 during electromagnetic heating and air cooling processes. Based on this data, the system can intelligently and accurately control the start, stop, duration, and intensity of the heating and cooling modules.

[0023] The temperature control process for the entire injection molding process can be programmed as follows: after the mold is closed, the electromagnetic heating module 2 is activated to heat the mold to the set temperature and maintain the temperature; after the injection pressure is completed, the electromagnetic heating stops, the industrial fan starts, and the product is cooled according to the preset time and wind speed; after the cooling is completed, the fan stops, the mold is opened, and the product is ejected.

Claims

1. An injection mold system, comprising a mold body, characterized in that... It also includes an electromagnetic heating module and a controllable air cooling module. The electromagnetic heating module is used to heat the mold body, and the controllable air cooling module is used to cool the mold body.

2. The injection mold system as described in claim 1, characterized in that... The electromagnetic heating module includes an electromagnetic heating coil wound around the outside of the mold body, and the electromagnetic heating coil is powered and controlled by an electromagnetic heater.

3. The injection mold system as described in claim 1, characterized in that... The controllable air-cooling module includes at least one pair of industrial fans disposed on both sides of the mold body.

4. The injection mold system as described in claim 3, characterized in that... The mold body is provided with an injection molding machine frame, and the industrial fan is installed on the injection molding machine frame, with the industrial fan blowing air towards the mold body.

5. The injection mold system as described in claim 4, characterized in that... The industrial fan is movably mounted on the outer frame of the injection molding machine.

6. The injection mold system as described in claim 1, characterized in that... It also includes a fixed template and a moving template. The mold body includes a mold frame, which includes a fixed mold frame and a moving mold frame. The fixed mold frame is installed on the fixed template, and the moving mold frame is installed on the moving template. Heat insulation plates are respectively provided between the connection surfaces of the fixed mold frame and the fixed template, and between the connection surfaces of the moving mold frame and the moving template.

7. The injection mold system as described in claim 1, characterized in that... It also includes a control system, which controls the electromagnetic heating module to work during the injection stage to heat and keep the mold body warm, and switches to control the controllable air cooling module to work after the pressure holding is completed, for cooling the mold body.

8. The injection mold system as described in claim 1, characterized in that... The mold body is provided with multiple temperature sensing points evenly distributed on it, and each temperature sensing point is equipped with a temperature sensor for sensing temperature.

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