A mould frame with a rapid cooling structure

Abstract

The utility model relates to injection mold technical field, especially a kind of mould frame with quick cooling structure, including upper die holder, lower die holder, guide column sleeve, upper die holder, lower die holder and cooling system;The cooling system includes cooling pipeline and cooling component;The cooling component includes water storage cavity, main water inlet passage, main water return passage, automatic water inlet valve, first check valve is provided on the main water inlet passage, second check valve is provided on the main water return passage.The mould frame with quick cooling structure of the utility model not only significantly reduces energy consumption, and improves system reliability by integrating water storage cavity and automatic water inlet valve, when external water source is short-time interrupted or auxiliary water pump fails, temporary cooling can be carried out using stored cooling water, buffer time is provided for handling failure, so that the continuity of production and equipment safety are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to a mold frame with a rapid cooling structure. Background Technology

[0002] In the injection molding process of plastic products, mold temperature control is crucial, directly affecting molding efficiency, dimensional stability, and internal quality. To improve production efficiency, rapid cooling of the mold is usually necessary after injection molding. Current technologies often employ water cooling, which involves creating cooling water channels inside the mold frame and using an external water pump to circulate cooling water and remove heat. However, existing water-cooled mold frames have the following shortcomings: 1. The supply of cooling water depends entirely on external power equipment (such as water pumps). Once the water pump fails, the cooling system will immediately fail, affecting the continuity of production; 2. The energy consumption of external water pumps is high when they are working continuously; 3. The traditional cooling water channel design is simple, and there is room for further improvement in cooling efficiency. Utility Model Content

[0003] This invention solves the problems in related technologies and proposes a mold frame with a rapid cooling structure, which not only significantly reduces energy consumption, but also improves system reliability by integrating a water storage chamber and an automatic water inlet valve. In the event of a short-term interruption of the external water source or failure of the auxiliary water pump, the stored cooling water can be used for temporary cooling, providing a buffer time for handling the fault, thereby ensuring the continuity of production and the safety of the equipment.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: a mold frame with a rapid cooling structure, including an upper mold frame, a lower mold frame disposed relative to the upper mold frame, guide post sleeves disposed at the four corners between the upper mold frame and the lower mold frame; an upper mold base connected to the upper mold frame, a lower mold base connected to the lower mold frame, and cooling systems respectively disposed inside the upper mold base and the lower mold base; The cooling system includes cooling pipes respectively disposed in the upper mold base and the lower mold base, and a cooling component disposed in the lower mold base; The cooling component includes a water storage cavity disposed in the lower mold base, a main water inlet channel connected to the water storage cavity, a main water return channel connected to the water storage cavity, and an automatic water inlet valve disposed at the connection between the main water inlet channel and the water storage cavity, wherein the automatic water inlet valve is connected to an external water source. A first check valve is provided on the main water inlet channel, and the inlet end of the main water inlet channel is connected to the bottom of the water storage chamber through the first check valve. A second check valve is installed on the main return water channel, and the outlet end of the main return water channel is connected to the upper part of the water storage chamber through the second check valve.

[0005] By adopting the above technical solution, the upper die holder is connected to the upper die frame, supporting and guiding the upper die during the stamping process; the lower die holder is connected to the lower die frame, supporting and guiding the lower die during the stamping process; the cooling system is responsible for providing the necessary cooling effect during the stamping process to prevent the die from being damaged by high temperature. Specifically, the cooling system includes cooling pipes and a water storage chamber for circulating and storing cooling water. The main inlet channel and main return channel in the water storage chamber control the flow direction of the cooling water through a first one-way valve and a second one-way valve, respectively, ensuring that the cooling water can circulate naturally between the water storage chamber and the main return channel, driven by the thermal expansion and contraction of the cooling water during the opening and closing of the upper and lower die frames and by gravity. The automatic water inlet valve is connected to an external water source, automatically replenishing water when the system is short of water, avoiding the energy consumption caused by continuous use of an external water pump.

[0006] As a preferred embodiment, the water storage cavity is arranged along the height direction of the mold core of the lower mold base, and a through vent hole is provided at the top of the water storage cavity.

[0007] By adopting the above technical solution, the water storage cavity is used to store cooling water. Its location is along the height of the mold core in the lower mold base, allowing for convenient loading and unloading of cooling water and maintaining stable mold temperature. The vent is located at the top of the water storage cavity, running through the entire cavity. Its main function is to ensure pressure balance inside and outside the water storage cavity, preventing water seal failure or abnormal water pressure due to pressure differences.

[0008] As a preferred embodiment, the automatic water inlet valve is configured as a mechanical float valve, which controls the opening and closing of the valve by the rise and fall of the float.

[0009] By adopting the above technical solution, the opening and closing of the automatic water inlet valve is controlled by the rise and fall of the float, thereby realizing the function of automatically adjusting the water inlet volume. This effectively avoids the inconvenience of manual operation and possible misoperation, and is suitable for various application scenarios that require stable water level control.

[0010] As a preferred embodiment, the automatic water inlet valve is a solenoid valve, and a water level sensor is provided in the water storage chamber. The water level sensor is electrically connected to the solenoid valve and controls the opening and closing of the automatic water inlet valve.

[0011] By employing the above technical solution, the solenoid valve is responsible for controlling the flow of water into the storage chamber as needed. The water level sensor is used to detect the water level in the storage chamber and convert the detection result into an electrical signal. Once the water level is lower than the set value, the water level sensor will send a signal to the solenoid valve, causing the solenoid valve to open, thereby allowing water to flow into the storage chamber. When the water level reaches the set height, the water level sensor will stop sending signals to the solenoid valve, and the solenoid valve will close.

[0012] As a preferred embodiment, the cooling pipe is a multi-layered, staggered spiral channel, and a cooling medium circulates within the cooling pipe.

[0013] By adopting the above technical solution, each layer of spiral channels is structurally independent yet interwoven, significantly increasing the contact area between the cooling surface and the cooling medium, thereby enhancing the heat exchange effect. The cooling pipes circulate a cooling medium that effectively absorbs the heat generated by the high-temperature equipment and efficiently carries it away through the spiral channels within the pipes, ultimately transferring it to the external cooling system or cooling water, achieving rapid cooling of the equipment.

[0014] As a preferred embodiment, a radiator for cooling the return cooling water is also provided at the outlet of the main return water channel, and a filter screen is provided at the inlet end of the main inlet water channel.

[0015] By adopting the above technical solution, the radiator installed at the outlet of the main return water channel is mainly used to cool the returning cooling water, enabling it to be reused more effectively. Meanwhile, the filter screen installed at the inlet of the main inlet water channel is used to filter the cooling water entering the system, removing impurities and suspended solids to ensure the purity of the water within the system.

[0016] As a preferred embodiment, an auxiliary water pump is also connected in parallel to the main water inlet channel, and the auxiliary water pump is configured as a micro booster pump.

[0017] By adopting the above technical solution, the main function of the main water inlet channel is to provide a stable water source for the system. The auxiliary water pump, as a miniature booster pump, is mainly used to provide additional pressure when rapid circulation of the system water is required, thus meeting system demands. The advantage of this design is that it significantly reduces reliance on external large water pumps; the auxiliary water pump is only activated when the system requires rapid circulation, significantly reducing unnecessary energy consumption.

[0018] As a preferred embodiment, the opening direction of the first check valve is from the water storage chamber to the main water inlet channel, and the opening direction of the second check valve is from the main return water channel to the water storage chamber.

[0019] By adopting the above technical solution, the function of the first one-way valve is to deliver water from the water storage chamber to the main water inlet channel, ensuring that the water flow can only flow in one direction and preventing backflow into the water storage chamber. The function of the second one-way valve is to deliver water from the main return water channel to the water storage chamber, similarly ensuring that the water flow can only flow in one direction into the water storage chamber and preventing water from flowing back from the water storage chamber to the main return water channel.

[0020] Compared with the prior art, the beneficial effects of this utility model are: This utility model; 1. Energy saving and consumption reduction: By utilizing the thermal expansion / cooling contraction of cooling water during the opening and closing of the upper and lower mold frames and the effect of gravity, the cooling water is driven to circulate naturally within the system. The residual pressure of the return water is used to replenish the water storage chamber, which greatly reduces the dependence on external water pumps. The auxiliary water pump is only started when rapid circulation is required, which significantly reduces energy consumption.

[0021] 2. High reliability: The integrated water storage chamber and automatic water inlet valve ensure that even if the external water source is interrupted for a short time or the auxiliary water pump fails, the cooling water stored in the water storage chamber can still maintain a cooling cycle for a certain period of time, providing a buffer time for handling the fault and ensuring the continuity of production and equipment safety.

[0022] 3. High cooling efficiency: The multi-layered staggered spiral cooling pipe design increases the heat exchange area, allowing for more thorough contact between the cooling medium and the mold core in the lower mold base, resulting in a more uniform temperature distribution. This achieves a rapid and uniform cooling effect, shortening the injection molding cycle.

[0023] 4. Compact structure: The water storage chamber, automatic water inlet valve, water level sensor, first check valve and second check valve are integrated inside the lower mold frame. The overall structure is compact, does not occupy extra space, and is easy to install and maintain. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a mold frame with a rapid cooling structure according to this utility model; Figure 2 This utility model relates to a structure with rapid cooling. Figure 1 A structural schematic diagram of the front view; Figure 3 This is a partial half-sectional view of the lower mold base in a mold frame with a rapid cooling structure according to this utility model; (intended to show the positional relationship between the cooling component and the lower mold base.) Figure 4 This utility model relates to a mold frame with a rapid cooling structure. Figure 2 A structural schematic diagram of the enlarged view at point A; Figure 5 This utility model relates to a mold frame with a rapid cooling structure. Figure 2 A structural schematic diagram of the front view.

[0025] In the picture: 11-Upper mold frame, 12-Lower mold frame, 2-Guide column sleeve, 31-Upper mold base, 32-Lower mold base, 40-Water storage cavity, 401-Water level sensor, 4011-Automatic water inlet valve, 41-Cooling pipe, 421-Main water inlet channel, 4211-First check valve, 422-Main return water channel, 4221-Second check valve, 5-Auxiliary water pump. Detailed Implementation

[0026] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0029] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0030] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0031] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0032] Please refer to details. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A mold frame with a rapid cooling structure includes an upper mold frame 11, a lower mold frame 12 disposed relative to the upper mold frame 11, guide post sleeves 2 disposed at the four corners between the upper mold frame 11 and the lower mold frame 12, and also includes an upper mold base 31 connected to the upper mold frame 11, a lower mold base 32 connected to the lower mold frame 12, and cooling systems disposed inside the upper mold base 31 and the lower mold base 32 respectively. Please refer to details. Figure 3 , Figure 4 and Figure 5 The cooling system includes cooling pipes 41 respectively disposed in the upper mold base 31 and the lower mold base 32, and cooling components disposed in the lower mold base 32. The cooling pipes 41 are multi-layered staggered spiral channels, and cooling medium circulates within the cooling pipes 41. Each layer of spiral channel is structurally independent and staggered, which can significantly increase the contact area between the cooling surface and the cooling medium, thereby enhancing the heat exchange effect. The cooling medium circulating within the cooling pipes 41 can effectively absorb the heat generated by the high-temperature equipment and efficiently carry away the heat through the spiral channels within the pipes, ultimately transferring it to the external cooling system or cooling water to achieve rapid cooling of the equipment.

[0033] Please refer to details. Figure 4 and Figure 5The cooling components include a water storage cavity 40 disposed in the lower mold base 32, a main water inlet channel 421 connected to the water storage cavity 40, a main water return channel 422 connected to the water storage cavity 40, and an automatic water inlet valve 4011 disposed at the connection between the main water inlet channel 421 and the water storage cavity 40. The automatic water inlet valve 4011 is connected to an external water source. Please refer to details. Figure 3 and Figure 5 A first check valve 4211 is provided on the main water inlet channel 421, and the inlet end of the main water inlet channel 421 is connected to the bottom of the water storage chamber 40 through the first check valve 4211. Please refer to details. Figure 3 and Figure 5 A second check valve 4221 is installed on the main return water channel 422, and the outlet end of the main return water channel 422 is connected to the upper part of the water storage chamber 40 through the second check valve 4221. The upper mold base 31 is connected to the upper mold frame 11, supporting and guiding the upper mold during the stamping process; the lower mold base 32 is connected to the lower mold frame 12, supporting and guiding the lower mold during the stamping process; the cooling system is responsible for providing the necessary cooling effect during the stamping process to avoid damage to the mold due to high temperature. Specifically, the cooling system includes a cooling pipe 41 and a water storage chamber 40 for circulating and storing cooling water. The main inlet water channel 421 and the main return water channel 422 in the water storage chamber 40 control the flow direction of the cooling water through the first check valve 4211 and the second check valve 4221 respectively, ensuring that the cooling water can circulate naturally between the water storage chamber 40 and the main return water channel 422, and the circulation is driven by the thermal expansion and contraction of the cooling water during the opening and closing of the upper mold frame 11 and the lower mold frame 12 as well as gravity. The automatic water inlet valve 4011 is connected to an external water source and automatically replenishes water when the system is short of water, avoiding the energy consumption caused by continuous use of an external water pump. This design not only significantly reduces energy consumption, but also improves system reliability by integrating the water storage chamber 40 and the automatic water inlet valve 4011. In the event of a short-term interruption of the external water source or failure of the auxiliary water pump 5, the stored cooling water can be used for temporary cooling, providing a buffer time for handling the fault, thereby ensuring the continuity of production and equipment safety.

[0034] Please refer to details. Figure 3The water storage cavity 40 is positioned along the height of the mold core of the lower mold base 32. A through-hole is located at the top of the water storage cavity 40. The water storage cavity 40 stores cooling water and is conveniently located along the height of the mold core, allowing for easy loading and unloading of cooling water and maintaining stable mold temperature. The vent is located at the top of the water storage cavity 40, extending throughout the entire cavity. Its main function is to ensure pressure balance inside and outside the water storage cavity 40, preventing water seal failure or abnormal water pressure due to pressure differences. In terms of working principle, when cooling water enters the water storage cavity 40, the vent at the top allows for pressure balance, ensuring that the cooling water is evenly distributed on the surface of the mold core. This effectively removes the heat generated by the mold heating, maintaining the mold's operating temperature within a reasonable range, thus improving mold lifespan and production efficiency.

[0035] Please refer to details. Figure 3 and Figure 4 The automatic water inlet valve 4011 is a mechanical float valve, which controls the opening and closing of the valve by the rise and fall of the float. The working principle of the mechanical float valve is as follows: when the water level rises, the float rises, driving the automatic water inlet valve 4011 to open via a lever or spring mechanism, allowing water to flow in; when the water level falls, the float falls, driving the automatic water inlet valve 4011 to close via the opposite lever or spring mechanism, stopping the water flow. The overall working principle is that the rise and fall of the float controls the opening and closing of the automatic water inlet valve 4011, achieving automatic adjustment of the water inlet volume. This effectively avoids the inconvenience of manual operation and potential misoperation, making it suitable for various application scenarios requiring stable water level control.

[0036] Please refer to details. Figure 3 and Figure 4 The automatic water inlet valve 4011 is a solenoid valve. A water level sensor 401 is installed inside the water storage chamber 40. The water level sensor 401 is electrically connected to the solenoid valve and controls the opening and closing of the automatic water inlet valve 4011. The solenoid valve controls the flow of water into the water storage chamber 40 as needed. The water level sensor 401 detects the water level in the water storage chamber 40 and converts the detection result into an electrical signal. Once the water level is lower than the set value, the water level sensor 401 sends a signal to the solenoid valve, causing it to open and allowing water to flow into the water storage chamber 40. When the water level reaches the set height, the water level sensor 401 stops sending signals to the solenoid valve, and the solenoid valve closes. In this way, the system can automatically regulate the water level, ensuring that the water volume in the water storage chamber 40 is always maintained within a reasonable range, avoiding overfilling or underfilling.

[0037] Please refer to details. Figure 3 and Figure 5The main return water channel 422 is equipped with a radiator at its outlet to cool the returning cooling water, while the main inlet water channel 421 has a filter screen at its inlet. The radiator at the outlet of the main return water channel 422 primarily cools the returning cooling water, allowing for more efficient reuse. The filter screen at the inlet of the main inlet water channel 421 filters the cooling water entering the system, removing impurities and suspended solids to ensure the purity of the water within the system. The working principle is as follows: After the cooling process is complete, the cooling water, having undergone heat exchange, flows out of the main return water channel 422 and is first cooled by the radiator, reducing system energy consumption. Subsequently, the cooled water re-enters the main inlet water channel 421, passing through the filter screen to ensure impurities are removed before re-entering the cooling cycle, thus ensuring efficient system operation and clean water quality.

[0038] Please refer to details. Figure 5 An auxiliary water pump 5 is connected in parallel to the main water inlet channel 421. The auxiliary water pump 5 is configured as a miniature booster pump. The main function of the main water inlet channel 421 is to provide a stable water source for the system. As a miniature booster pump, the auxiliary water pump 5 is mainly used to provide additional pressure when rapid circulation of the system water is required to meet system needs. The advantage of this design is that it significantly reduces dependence on external large water pumps. The auxiliary water pump 5 is only activated when the system requires rapid circulation, significantly reducing unnecessary energy consumption.

[0039] Please refer to details. Figure 3 and Figure 5 The first one-way valve 4211 opens from the water storage chamber 40 to the main inlet channel 421, and the second one-way valve 4221 opens from the main return channel 422 to the water storage chamber 40. The function of the first one-way valve 4211 is to deliver water from the water storage chamber 40 to the main inlet channel 421, ensuring that the water flow is unidirectional and preventing backflow into the water storage chamber 40. The function of the second one-way valve 4221 is to deliver water from the main return channel 422 to the water storage chamber 40, similarly ensuring that the water flow is unidirectional and preventing backflow from the water storage chamber 40 to the main return channel 422. The working principle is that when the water pressure in the water storage chamber 40 is greater than the water pressure in the main water inlet channel 421, the first one-way valve 4211 opens, allowing water to flow from the water storage chamber 40 into the main water inlet channel 421; conversely, when the water pressure in the main return channel 422 is greater than the water pressure in the water storage chamber 40, the second one-way valve 4221 opens, allowing water to flow from the main return channel 422 into the water storage chamber 40, thereby ensuring unidirectional water flow and effectively avoiding mutual interference and backflow in the water system.

[0040] In this embodiment, during use, the upper die holder 31 is connected to the upper die frame 11, supporting and guiding the upper die during the stamping process; the lower die holder 32 is connected to the lower die frame 12, supporting and guiding the lower die during the stamping process. Cooling medium circulates within the cooling pipe 41. This medium effectively absorbs the heat generated by the high-temperature equipment and efficiently carries the heat away through the spiral channel within the pipe, ultimately transferring it to an external cooling system or cooling water to achieve rapid cooling of the equipment. After the cooling process is complete, the cooled water, after heat exchange, flows out through the main return water channel 422, first being recycled and cooled by the radiator to reduce system energy consumption. Subsequently, the cooled water re-enters the main inlet water channel 421, where a filter screen ensures that impurities in the water are filtered out before it re-enters the cooling cycle, thus ensuring efficient system operation and clean water quality.

[0041] The above are preferred embodiments of this utility model. Those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on this utility model shall fall within the protection scope of this utility model.

Claims

1. A mold frame with a rapid cooling structure, comprising an upper mold frame (11), a lower mold frame (12) disposed relative to the upper mold frame (11), and guide post sleeves (2) disposed at the four corners between the upper mold frame (11) and the lower mold frame (12), characterized in that: It also includes an upper mold base (31) connected to the upper mold frame (11), a lower mold base (32) connected to the lower mold frame (12), and cooling systems respectively disposed inside the upper mold base (31) and the lower mold base (32); The cooling system includes cooling pipes (41) respectively disposed in the upper mold base (31) and the lower mold base (32) and cooling components disposed in the lower mold base (32); The cooling component includes a water storage cavity (40) disposed in the lower mold base (32), a main water inlet channel (421) connected to the water storage cavity (40), a main water return channel (422) connected to the water storage cavity (40), and an automatic water inlet valve (4011) disposed at the connection between the main water inlet channel (421) and the water storage cavity (40). The automatic water inlet valve (4011) is connected to an external water source. A first check valve (4211) is provided on the main water inlet channel (421), and the inlet end of the main water inlet channel (421) is connected to the bottom of the water storage chamber (40) through the first check valve (4211); A second check valve (4221) is provided on the main return water channel (422), and the outlet end of the main return water channel (422) is connected to the upper part of the water storage chamber (40) through the second check valve (4221).

2. The mold frame with a rapid cooling structure according to claim 1, characterized in that: The water storage cavity (40) is arranged at the height of the mold core of the lower mold base (32), and a through vent hole is provided at the top of the water storage cavity (40).

3. A mold frame with a rapid cooling structure according to claim 2, characterized in that: The automatic water inlet valve (4011) is a mechanical float valve, which controls the opening and closing of the valve by the rise and fall of the float.

4. A mold frame with a rapid cooling structure according to claim 3, characterized in that: The automatic water inlet valve (4011) is a solenoid valve. A water level sensor (401) is provided in the water storage chamber (40). The water level sensor (401) is electrically connected to the solenoid valve and controls the opening and closing of the automatic water inlet valve (4011).

5. A mold frame with a rapid cooling structure according to claim 4, characterized in that: The cooling pipe (41) is a multi-layered staggered spiral channel, and a cooling medium circulates inside the cooling pipe (41).

6. A mold frame with a rapid cooling structure according to claim 5, characterized in that: The outlet of the main return water channel (422) is also provided with a radiator for cooling the return cooling water, and the inlet end of the main inlet water channel (421) is provided with a filter screen.

7. A mold frame with a rapid cooling structure according to claim 6, characterized in that: An auxiliary water pump (5) is also connected in parallel on the main water inlet channel (421), and the auxiliary water pump (5) is configured as a micro booster pump.

8. A mold frame with a rapid cooling structure according to claim 7, characterized in that: The opening direction of the first one-way valve (4211) is from the water storage chamber (40) to the main water inlet channel (421), and the opening direction of the second one-way valve (4221) is from the main return water channel (422) to the water storage chamber (40).

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