Injection molding machine demolding mechanism capable of assisting heat dissipation

Abstract

The utility model discloses an injection molding machine demoulding mechanism capable of assisting heat dissipation, which relates to the technical field of injection molding machine demoulding mechanisms and comprises a mounting plate and a protective cover, and a fixed mould is mounted above the mounting plate. According to the injection molding machine demolding mechanism capable of assisting in heat dissipation, before demolding, cooling liquid enters a cooling cavity from a liquid inlet pipe to conduct primary cooling on a plastic workpiece, a heat dissipation net plate absorbs heat of a fixed mold, meanwhile, a miniature air compression pump is started to suck surrounding air, airflow is conveyed into a flow dividing pipe through a guide pipe, and then the plastic workpiece is subjected to secondary cooling; and finally, the air flow is sprayed out through a plurality of nozzles, so that the air flow makes contact with a heat dissipation net plate, the air flow carries heat on the heat dissipation net plate to rise upwards, the air flow carries the heat to be discharged upwards from a gap between the flow guide plate and the movable mold along the inner wall of the flow guide plate, and through arrangement of the heat dissipation net plate and a heat dissipation mechanism, the cooling time of the plastic workpiece is shortened; and the cooling efficiency of the demolding mechanism of the injection molding machine is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of demolding mechanisms for injection molding machines, specifically a demolding mechanism for injection molding machines that can assist in heat dissipation. Background Technology

[0002] An injection molding machine is a device that heats and melts thermoplastic or thermosetting plastics, injects the molten plastic into a mold, and then cools and solidifies it to form the desired plastic product. It mainly consists of an injection system, a clamping system, a hydraulic system, and a control system. When injection molding plastic workpieces are molded and demolded, a demolding mechanism is required.

[0003] However, existing injection molding machine demolding mechanisms use coolant to cool the plastic workpiece inside the mold before demolding. After the plastic workpiece has completely cooled and solidified, it is then demolded. However, using only coolant results in a long cooling and molding time. Therefore, the demolding mechanism of the current injection molding machine needs to be improved. Utility Model Content

[0004] The purpose of this invention is to provide a demolding mechanism for injection molding machines that can assist in heat dissipation, in order to solve the problem mentioned in the background art that the demolding mechanisms of injection molding machines on the market currently only use coolant for cooling, resulting in a long cooling and molding time.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a demolding mechanism for an injection molding machine that can assist in heat dissipation, comprising a mounting plate and a protective cover, wherein a fixed mold is mounted above the mounting plate, a movable mold is provided above the fixed mold, the protective cover is fixed on the upper surface of the mounting plate near the outer side of the fixed mold, a guide plate is fixed above the protective cover, and a heat dissipation mechanism is mounted on the inner side of the protective cover.

[0006] Preferably, the heat dissipation mechanism includes a nozzle, a conduit, a miniature air compressor pump, and a diverter pipe. The diverter pipe is installed on the inner wall of the protective cover, and the conduit pipe is connected to the middle of the diverter pipe.

[0007] Preferably, a miniature air compressor is connected to the end of the conduit away from the diverter, the miniature air compressor is located outside the protective cover, and nozzles with equal intervals are connected to the inner side of the diverter.

[0008] Preferably, a heat dissipation mesh plate is fitted on the outer side of the fixed mold, an ejector assembly is installed in the middle of the fixed mold, an injection port is connected above the moving mold, and a cooling cavity is opened in the interior of the fixed mold near the ejector assembly.

[0009] Preferably, the fixed mold is connected to an inlet pipe and an outlet pipe on the side near the cooling cavity, and one end of the inlet pipe and the outlet pipe are both connected to the cooling cavity. A filter mechanism is installed on the inner side of the inlet pipe.

[0010] Preferably, the filtration mechanism includes bolts, a filter cylinder, a sealing plate, and a filter screen. The filter cylinder is connected to the inner side of the liquid inlet pipe, and a filter screen is provided inside the filter cylinder.

[0011] Preferably, a sealing plate is fixedly connected to one end of the filter screen, and the sealing plate is located outside the filter cylinder, and bolts are provided at both ends of the filter cylinder.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. Equipped with a heat dissipation mechanism and heat dissipation mesh, the plastic workpiece is initially cooled by coolant entering the cooling chamber through the inlet pipe before demolding. The heat dissipation mesh absorbs the heat from the stationary mold. Simultaneously, a micro air compressor pump is activated to draw in ambient air, which is then transported through a conduit into a distribution pipe and finally sprayed out through several nozzles. This allows the airflow to contact the heat dissipation mesh, carrying the heat from the mesh upwards. Because the inner wall of the guide plate is inclined, the heat carried by the airflow is discharged upwards along the inner wall of the guide plate from the gap between the guide plate and the moving mold, preventing heat from directly spreading outwards and burning the workers, and slowing down the rate of heat rise. Through the heat dissipation mesh and mechanism, the remaining heat can be discharged again under the cooling of the coolant, reducing the cooling time of the plastic workpiece and improving the cooling efficiency of the injection molding machine's demolding mechanism.

[0014] 2. Equipped with a filtration mechanism, when the coolant enters the cooling chamber through the inlet pipe, the filter screen intercepts impurities in the coolant, allowing the filtered coolant to re-enter the cooling chamber. When the filter screen needs to be cleaned, the bolts at both ends of the sealing plate are removed, and then the sealing plate is pulled upwards, causing the sealing plate to pull the filter screen away from the filter cylinder, facilitating the cleaning of the filter screen and improving the practicality of the demolding mechanism of the injection molding machine. 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 protective cover of this utility model;

[0017] Figure 3 This is a three-dimensional sectional view of the present invention.

[0018] Figure 4 This is a three-dimensional exploded view of the present invention;

[0019] Figure 5 This is a three-dimensional sectional view of the mold of this utility model;

[0020] Figure 6 This is a three-dimensional structural diagram of the heat dissipation mechanism of this utility model;

[0021] Figure 7 This is a three-dimensional sectional view of the filtration mechanism of this utility model;

[0022] Figure 8 This is a three-dimensional structural diagram of the heat dissipation mesh plate of this utility model.

[0023] In the diagram: 1. Mounting plate; 2. Protective cover; 3. Guide plate; 4. Injection port; 5. Moving mold; 6. Fixed mold; 7. Heat dissipation mechanism; 701. Nozzle; 702. Conduit; 703. Miniature air compressor pump; 704. Diverter pipe; 8. Cooling chamber; 9. Filtering mechanism; 901. Bolt; 902. Filter cylinder; 903. Sealing plate; 904. Filter screen; 10. Liquid inlet pipe; 11. Liquid outlet pipe; 12. Heat dissipation mesh plate; 13. Ejector assembly. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-5 This utility model provides a technical solution: a demolding mechanism for an injection molding machine that can assist in heat dissipation, including a mounting plate 1 and a protective cover 2. A fixed mold 6 is mounted on the top of the mounting plate 1, and a movable mold 5 is provided above the fixed mold 6. The protective cover 2 is fixed to the upper surface of the mounting plate 1 near the outer side of the fixed mold 6. An ejector assembly 13 is mounted in the middle of the fixed mold 6. An injection port 4 is connected above the movable mold 5. A cooling cavity 8 is opened inside the fixed mold 6 near the ejector assembly 13.

[0026] Please see Figures 1-4 , Figure 6 and Figure 8A guide plate 3 is fixed above the protective cover 2. A heat dissipation mechanism 7 is installed inside the protective cover 2. The heat dissipation mechanism 7 includes a nozzle 701, a conduit 702, a micro air compressor pump 703, and a diversion pipe 704. A diversion pipe 704 is installed on the inner wall of the protective cover 2. The conduit 702 is connected to the middle of the diversion pipe 704. The micro air compressor pump 703 is connected to the end of the conduit 702 away from the diversion pipe 704. The micro air compressor pump 703 is located outside the protective cover 2. The nozzles 701 are evenly distributed inside the diversion pipe 704. A heat dissipation mesh plate 12 is sleeved on the outer side of the fixed mold 6. The heat dissipation mesh plate 12 is made of copper. The inner wall of the guide plate 3 is inclined. The diversion pipe 704 is U-shaped.

[0027] In practical implementation, when the injection molding machine injection molds and demolds the plastic workpiece, a demolding mechanism is required. Existing injection molding machine demolding mechanisms use coolant to cool the plastic workpiece inside the mold before demolding. After the plastic workpiece has completely cooled and solidified, it is then demolded. However, using only coolant results in a long cooling time. To address this, before demolding, coolant can be introduced into the cooling chamber 8 through the inlet pipe 10 to perform initial cooling of the plastic workpiece. The heat dissipation plate 12 absorbs the heat from the mold 6, and simultaneously, the micro air compressor pump 703 draws in ambient air and directs the airflow through the conduit 702. The airflow is fed into the distribution pipe 704 and finally sprayed out through several nozzles 701, so that the airflow comes into contact with the heat dissipation mesh plate 12. The airflow carries the heat on the heat dissipation mesh plate 12 and rises upward. Since the inner wall of the guide plate 3 is set as an inclined surface, the airflow carrying heat will be discharged upward along the inner wall of the guide plate 3 from the gap between the guide plate 3 and the moving mold 5, preventing the heat from directly spreading outward and burning the staff, and slowing down the rate of heat rise. Through the setting of the heat dissipation mesh plate 12 and the heat dissipation mechanism 7, the remaining heat can be discharged again under the cooling of the coolant, reducing the cooling time of the plastic workpiece and improving the cooling efficiency of the demolding mechanism of the injection molding machine.

[0028] Please see Figures 2-5 and Figure 7 The fixed mold 6 is connected to an inlet pipe 10 and an outlet pipe 11 on the side near the cooling chamber 8, and one end of the inlet pipe 10 and the outlet pipe 11 are both connected to the cooling chamber 8. A filter mechanism 9 is installed inside the inlet pipe 10. The filter mechanism 9 includes bolts 901, a filter cylinder 902, a sealing plate 903, and a filter screen 904. The filter cylinder 902 is connected to the inside of the inlet pipe 10. The filter screen 904 is provided inside the filter cylinder 902. One end of the filter screen 904 is fixedly connected to the sealing plate 903, and the sealing plate 903 is located outside the filter cylinder 902. Bolts 901 are provided at both ends of the filter cylinder 902. The sealing plate 903 is designed with an arc-shaped structure.

[0029] In practical implementation, since some impurities exist in the coolant when the demolding mechanism of the injection molding machine is cooled by the coolant, these impurities will accumulate in the cooling chamber 8 of the mold over a long period of time, affecting the cooling operation. When the coolant enters the cooling chamber 8 through the inlet pipe 10, the filter screen 904 can intercept the impurities in the coolant, so that the filtered coolant can then enter the cooling chamber 8. When it is necessary to clean the filter screen 904, the bolts 901 at both ends of the sealing plate 903 can be removed, and then the sealing plate 903 can be pulled upwards, so that the sealing plate 903 can drive the filter screen 904 away from the filter cylinder 902, making it convenient to clean the filter screen 904 and improving the practicality of the demolding mechanism of the injection molding machine.

[0030] Working principle: When using the injection molding machine demolding mechanism that can assist in heat dissipation, the raw material is first conveyed into the molding cavity of the moving mold 5 and the fixed mold 6 through the injection port 4. Then, the coolant is conveyed into the cooling cavity 8 through the liquid inlet pipe 10. At the same time, the coolant is filtered by the filter mechanism 9. Then, the coolant is discharged from the liquid outlet pipe 11. During the cooling process, the heat dissipation mechanism 7 and the heat dissipation mesh plate 12 are used to conduct and dissipate the heat of the fixed mold 6, which improves the cooling efficiency and practicality of the injection molding machine demolding mechanism. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An injection molding machine stripper mechanism that can assist in heat dissipation, comprising a mounting plate (1) and a protective cover (2), characterized in that: The upper side of the mounting plate (1) is provided with a fixed mold (6), the upper side of the fixed mold (6) is provided with a movable mold (5), the protective cover (2) is fixed on the upper surface of the mounting plate (1) near the outer side of the fixed mold (6), the upper side of the protective cover (2) is fixed with a deflector (3), and the inner side of the protective cover (2) is provided with a heat dissipation mechanism (7).

2. The demolding mechanism of an injection molding machine capable of assisting heat dissipation according to claim 1, characterized in that: The heat dissipation mechanism (7) comprises a nozzle (701), a pipe (702), a micro air compressor pump (703) and a shunt pipe (704), the inner wall of the protective cover (2) is provided with the shunt pipe (704), and the middle part of the shunt pipe (704) is connected with the pipe (702).

3. The injection molding machine stripper mechanism of claim 2, wherein: One end of the pipe (702) away from the shunt pipe (704) is connected with the micro air compressor pump (703), the micro air compressor pump (703) is located outside the protective cover (2), and the inner side of the shunt pipe (704) is connected with the nozzle (701) distributed at equal intervals.

4. The injection molding machine stripper mechanism of claim 1, wherein: The outer side of the fixed mold (6) is sleeved with a heat dissipation mesh plate (12), the middle part of the fixed mold (6) is provided with a material pushing assembly (13), the upper side of the movable mold (5) is connected with an injection port (4), and the inner side of the fixed mold (6) near the material pushing assembly (13) is provided with a cooling cavity (8).

5. The injection molding machine stripper mechanism of claim 4, wherein: The side of the fixed mold (6) near the cooling cavity (8) is connected with an inlet pipe (10) and an outlet pipe (11), one end of the inlet pipe (10) and the outlet pipe (11) is connected with the cooling cavity (8), and the inner side of the inlet pipe (10) is provided with a filtering mechanism (9).

6. The injection molding machine stripper mechanism of claim 5, wherein: The filtering mechanism (9) comprises a bolt (901), a filter cylinder (902), a sealing plate (903) and a filter screen (904), the inner side of the inlet pipe (10) is connected with the filter cylinder (902), and the inside of the filter cylinder (902) is provided with the filter screen (904).

7. The injection molding machine stripper mechanism of claim 6, wherein: One end of the filter screen (904) is fixedly connected with the sealing plate (903), and the sealing plate (903) is located outside the filter cylinder (902), and the both ends of the filter cylinder (902) are provided with the bolt (901).

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