Mold cooling system and production line body

Abstract

The utility model relates to the technical field of mold cooling, and discloses a mold cooling system and a production line body, the mold cooling system comprises a liquid inlet pipeline, a liquid outlet pipeline, a judgment module, a first flow meter assembly and a second flow meter assembly, and the input end of the liquid inlet pipeline is used for communicating with a cooling liquid pool; the input end of the first flow meter assembly communicates with the output end of the liquid inlet pipeline, and the output end of the first flow meter assembly is used for communicating with the input end of a cooling channel in the mold. The input end of the second flow meter assembly is used for being communicated with the output end of a cooling channel in the mold. The input end of the liquid outlet pipeline is communicated with the output end of the second flow meter assembly, and the output end of the liquid outlet pipeline is used for being communicated with a cooling liquid pool; the judgment module is in communication connection with the first flow meter assembly and the second flow meter assembly, and the judgment module can determine the flow difference between the first flow meter assembly and the second flow meter assembly and judge whether the flow difference exceeds a set value or not; cooling water leakage of the mold can be detected, and the production safety accident rate is reduced.

Description

Technical Field

[0001] This application relates to the field of mold cooling technology, specifically to mold cooling systems and production lines. Background Technology

[0002] In molding processes such as injection molding and die casting, molds are usually cooled by circulating cooling water. An efficient cooling system can accelerate the heat dissipation of the mold, allowing the product to cool and solidify quickly. This enables faster demolding and subsequent molding operations, effectively shortening the production cycle and improving production efficiency.

[0003] In related technologies, the molds used in die casting processes have very high requirements for temperature control, resulting in the arrangement of a large number of cooling water circuits within the molds. As the molds age, cracks may appear, leading to leaks in the cooling water circuits and creating safety hazards. For example, in the die casting mold for the integrated rear floor of a vehicle, the volume of molten aluminum is large. If a cooling water leak occurs in the mold, and injection is performed, the contact between the molten aluminum and the cooling water can cause the molten aluminum to explode, resulting in a safety accident. Utility Model Content

[0004] This application provides a mold cooling system and production line that can detect cooling water leakage in the mold and reduce the incidence of production safety accidents.

[0005] On the one hand, this application provides a mold cooling system, including an inlet pipe, an outlet pipe, a determination module, at least one first flow meter assembly and at least one second flow meter assembly, the specific scheme of which is as follows.

[0006] The inlet pipe has an input end that connects to the coolant pool; the input end of the first flow meter assembly connects to the output end of the inlet pipe, and the output end of the first flow meter assembly connects to the input end of the cooling channel inside the mold; the input end of the second flow meter assembly connects to the output end of the cooling channel inside the mold; the outlet pipe has an input end that connects to the output end of the second flow meter assembly, and the output end of the outlet pipe connects to the coolant pool.

[0007] The determination module is connected to both the first flow meter component and the second flow meter component via communication. The determination module can determine whether the flow difference exceeds a set value based on the flow difference between the first flow meter component and the second flow meter component.

[0008] Beneficial effects: The first and second flow meter components measure the inlet and outlet flow rates of the mold cooling channel respectively and feed the data back to the judgment module. The judgment module determines whether the flow difference exceeds the set value to identify whether there is coolant leakage in the mold cooling channel, thereby reducing the incidence of production safety accidents.

[0009] In one optional embodiment, there are multiple first flow meter components, the input ends of the multiple first flow meter components are all connected to the output end of the liquid inlet pipeline, and the output ends of the multiple first flow meter components are respectively used to connect one-to-one with the input ends of multiple cooling channels on the mold.

[0010] There are multiple second flow meter components. The input ends of the multiple second flow meter components are respectively connected to the output ends of multiple cooling channels on the mold, and the output ends of the multiple second flow meter components are all connected to the input end of the liquid outlet pipeline.

[0011] The determination module can determine whether the flow difference exceeds a set value based on the flow difference between the first flow meter component and the second flow meter component connected to each cooling channel.

[0012] In one optional embodiment, the liquid inlet pipeline includes an input pipe and at least one distribution component. The distribution component is provided with a flow-dividing cavity. The input end of the input pipe is used to communicate with the coolant pool, and the output end of the input pipe is connected to the flow-dividing cavity in the distribution component. The flow-dividing cavity in the distribution component is connected to the input end of the first flow meter assembly.

[0013] The liquid outlet pipeline includes an output pipe and a return component. The return component is provided with a return cavity. The output end of the second flow meter assembly is connected to the return cavity in the return component. The return cavity in the return component is connected to the input end of the output pipe. The output end of the output pipe is used to connect to the coolant pool.

[0014] In one optional embodiment, there are two distribution components and two return components. One distribution component and one return component are both used to communicate with the cooling channel in the moving mold of the mold; the other distribution component and the other return component are both used to communicate with the cooling channel in the fixed mold of the mold.

[0015] In one alternative implementation, the first flow meter assembly includes a first flow sensor and a first valve connected in series;

[0016] The second flow meter assembly includes a second flow sensor and a second valve connected in series.

[0017] In one optional embodiment, an inlet valve is provided on the inlet pipeline, and an air inlet valve is provided on the inlet pipeline between the inlet valve and the output end of the inlet pipeline for connecting to an air source. The air inlet valve is connected to the judgment module signal.

[0018] In one optional embodiment, the system further includes a coolant pool and a first circulation pump. The inlet pipe and the outlet pipe are both connected to the coolant pool. The first circulation pump is disposed on the inlet pipe or the outlet pipe and is communicatively connected to the determination module.

[0019] In one optional embodiment, the system further includes a cooling tower, a heat exchanger, and a temperature sensor. The heat exchanger is provided with a first heat exchange channel and a second heat exchange channel. The coolant pool is circulatedly connected to the first heat exchange channel through a first circulation pipeline, and the cooling tower is circulatedly connected to the second heat exchange channel through a second circulation pipeline.

[0020] The first circulation pipeline is equipped with a second circulation pump, the second circulation pipeline is equipped with a third circulation pump, the temperature sensor is installed on the liquid inlet pipeline, and the second circulation pump, the third circulation pump and the temperature sensor are all communicatively connected to the determination module.

[0021] In one alternative embodiment, both the top of the dispensing component and the top of the return component are provided with vent valves.

[0022] On the other hand, this application also provides a production line body, including: a mold and a mold cooling system according to any embodiment of the first aspect; at least one cooling channel is provided inside the mold; the output end of the first flow meter assembly is connected to the input end of the cooling channel inside the mold, and the input end of the second flow meter assembly is connected to the output end of the cooling channel inside the mold.

[0023] Beneficial effects: Since the production line includes a mold cooling system, it has the same effect as the mold cooling system, so it will not be elaborated here. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this application, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of a mold cooling system according to an embodiment of this application;

[0026] Figure 2 This is a schematic diagram illustrating the connection principle of the cooling tower, heat exchanger, and coolant pool in another mold cooling system according to an embodiment of this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Liquid inlet pipeline; 2. First flow meter assembly; 3. Second flow meter assembly; 4. Liquid outlet pipeline; 5. Mold; 6. Air source; 7. Coolant pool; 8. Cooling tower; 9. Heat exchanger;

[0029] 11. Input pipe; 12. Distribution unit; 13. Liquid inlet valve; 14. Air inlet valve; 15. First circulation pump; 16. Temperature sensor;

[0030] 21. First flow sensor; 22. First valve;

[0031] 31. Second flow sensor; 32. Second valve;

[0032] 41. Output tube; 42. Reflux component;

[0033] 51. Cooling channel; 52. Moving mold; 53. Fixed mold;

[0034] 71. First circulation pipeline; 711. Second circulation pump;

[0035] 81. Second circulation pipeline; 811. Third circulation pump. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] In related technologies, molds in molding processes such as injection molding and die casting are usually cooled by circulating cooling water. An efficient cooling system can accelerate the heat dissipation of the mold, allowing the product to cool and solidify quickly, thus enabling faster demolding and the next molding operation, effectively shortening the production cycle and improving production efficiency.

[0038] The molds used in die casting require very high temperature control, resulting in a large number of cooling water circuits inside the molds. As the molds age, cracks may appear, leading to leaks in the cooling water circuits and creating safety hazards. For example, in the die casting mold for the integrated rear floor of a car body, the amount of molten aluminum poured is large. If a cooling water leak occurs in the mold and injection is performed, the molten aluminum coming into contact with the cooling water can cause an explosion, resulting in a safety accident.

[0039] To address the aforementioned issues, this application provides a mold cooling system and production line that can detect cooling water leakage from the mold and reduce the incidence of production safety accidents.

[0040] The following is combined with Figures 1 to 2 This describes an embodiment of the present application.

[0041] According to embodiments of this application, in one aspect, a mold cooling system is provided, such as... Figure 1 As shown, it includes an inlet pipe 1, an outlet pipe 4, a determination module, at least one first flow meter component 2 and at least one second flow meter component 3, and the specific scheme is as follows.

[0042] The input end of the liquid inlet pipe 1 is used to connect with the coolant pool 7. Specifically, the input end of the liquid inlet pipe 1 is connected to the bottom opening of the coolant pool 7, or the input end of the liquid inlet pipe 1 is inserted into the coolant pool 7.

[0043] like Figure 1 As shown, the input end of the first flow meter assembly 2 is connected to the output end of the liquid inlet pipe 1 through a connecting pipe or directly through a threaded connection. The output end of the first flow meter assembly 2 is used to connect to the input end of the cooling channel 51 in the mold 5 through a connecting pipe or directly through a threaded connection.

[0044] like Figure 1 As shown, the input end of the second flow meter assembly 3 is used to connect with the output end of the cooling channel 51 in the mold 5 via a connecting pipe or directly via a thread.

[0045] like Figure 1 As shown, the input end of the liquid outlet pipe 4 is connected to the output end of the second flow meter assembly 3 through a connecting pipe or directly through a threaded connection. The output end of the liquid outlet pipe 4 is used to connect to the coolant pool 7. Specifically, the output end of the liquid outlet pipe 4 is connected to any part of the coolant pool 7.

[0046] The determination module can be any one of a microcontroller, a computer host, or a control circuit board. The determination module is connected to both the first flow meter component 2 and the second flow meter component 3 via communication. Specifically, the communication connection can be any one of wireless communication, local area network communication, or electrical signal. The electrical signal is connected via a wire. The determination module can determine whether the flow difference between the first flow meter component 2 and the second flow meter component 3 exceeds the set value.

[0047] In specific usage, such as Figure 1 As shown, the first flow meter assembly 2 and the second flow meter assembly 3 measure the liquid inlet and outlet flow of the cooling channel 51 of the mold 5 respectively, and feed the data back to the judgment module in real time. The judgment module calculates the flow difference by comparing the liquid inlet and outlet flow. If the flow difference is not greater than the set value, there is no leakage on the surface. If the flow difference is greater than the set value, there is leakage on the surface, and an alarm signal can be issued for subsequent remedial processing.

[0048] In this embodiment, such as Figure 1 As shown, the inflow and outflow of liquid in the cooling channel 51 of the mold 5 are measured by the first flow meter assembly 2 and the second flow meter assembly 3 respectively, and the results are fed back to the judgment module. The judgment module determines whether the flow difference exceeds the set value to identify whether there is coolant leakage in the cooling channel 51 of the mold 5, thereby reducing the incidence of production safety accidents.

[0049] In one embodiment, such as Figure 1 As shown, there are multiple first flow meter components 2. The input ends of multiple first flow meter components 2 are connected to the output ends of the liquid inlet pipe 1 through connecting pipes or directly through threads. The output ends of multiple first flow meter components 2 are respectively used to connect to the input ends of multiple cooling channels 51 on the mold 5 one by one, specifically, through connecting pipes or directly through threads.

[0050] like Figure 1 As shown, there are multiple second flow meter components 3. The input ends of the multiple second flow meter components 3 are respectively used to connect one-to-one with the output ends of multiple cooling channels 51 on the mold 5. Specifically, they are connected through connecting pipes or directly through threads. The output ends of the multiple second flow meter components 3 are all connected to the input ends of the liquid outlet pipe 4 through connecting pipes or directly through threads.

[0051] The determination module can determine whether the flow difference exceeds the set value based on the flow difference between the first flow meter component 2 and the second flow meter component 3 connected to each cooling channel 51.

[0052] In specific usage, such as Figure 1 As shown, each cooling channel 51 in the mold 5 is equipped with a first flow meter assembly 2 at its input end and a second flow meter assembly 3 at its output end. The judgment module calculates the flow difference of each cooling channel 51 in the mold 5 and determines whether it exceeds the set value, thereby determining which cooling channel 51 is leaking, which facilitates subsequent remedial maintenance.

[0053] In one embodiment, such as Figure 1 As shown, the liquid inlet pipeline 1 includes an input pipe 11 and at least one distribution component 12. Specifically, the input pipe 11 is a steel pipe, etc.; the distribution component 12 is a distribution plate, and a flow distribution cavity is provided inside the distribution component 12. The shape of the flow distribution cavity is any one of cuboid, cylindrical, etc.; the input end of the input pipe 11 is used to communicate with the coolant pool 7, the output end of the input pipe 11 is connected to the flow distribution cavity in the distribution component 12, and the flow distribution cavity in the distribution component 12 is connected to the input end of the first flow meter assembly 2.

[0054] The liquid outlet pipeline 4 includes an output pipe 41 and a return component 42. Specifically, the output pipe 41 is a steel pipe, etc., and the return component 42 is a return plate. A return cavity is provided inside the return component 42. The output end of the second flow meter assembly 3 is connected to the return cavity inside the return component 42. The return cavity inside the return component 42 is connected to the input end of the output pipe 41. The output end of the output pipe 41 is used to connect to the coolant pool 7.

[0055] In specific usage, such as Figure 1 As shown, the inlet pipe 1 injects cooling liquid into the distribution chamber within the distribution component 12. The cooling liquid is specifically water or other liquid. The distribution chamber distributes the cooling liquid flowing to each cooling channel 51, ensuring the uniformity of the cooling liquid flow in each cooling channel 51.

[0056] The coolant from each cooling channel 51 flows into the return chamber and then into the output pipe 41 to return to the coolant pool 7. This can improve the uniformity of resistance at the output end of each cooling channel 51 and further improve the uniformity of coolant flow in each cooling channel 51.

[0057] In this embodiment, such as Figure 1 As shown, the liquid inlet pipe 1 includes an input pipe 11 and at least one distribution component 12. The distribution component 12 is provided with a flow distribution chamber to distribute the cooling liquid flowing to each cooling channel 51. This can ensure the uniformity of the flow rate of the cooling liquid in each cooling channel 51, improve the overall temperature uniformity of the mold 5, and thus improve production efficiency and product quality.

[0058] The system also employs an outlet pipe 4, which includes an outlet pipe 41 and a return component 42. The return component 42 is equipped with a return chamber to collect the cooling liquid in each cooling channel 51 into the return chamber. This can improve the uniformity of resistance at the outlet end of each cooling channel 51, further improve the uniformity of coolant flow in each cooling channel 51, and improve the overall temperature uniformity of the mold 5, thereby improving production efficiency and product quality.

[0059] In one embodiment, such as Figure 1 As shown, there are two distribution components 12 and two return components 42. One distribution component 12 and one return component 42 are used to communicate with the cooling channel 51 in the moving mold 52 of the mold 5; the other distribution component 12 and the other return component 42 are used to communicate with the cooling channel 51 in the fixed mold 53 of the mold 5.

[0060] In this embodiment, by setting two sets of distribution components 12 and return components 42, cooling liquid is distributed to the moving mold 52 and the fixed mold 53 in the mold 5 respectively, which can realize the individual control of the temperature of the moving mold 52 and the temperature of the fixed mold 53, and achieve precise control of the temperature of the mold 5.

[0061] In one embodiment, such as Figure 1 As shown, the first flow meter assembly 2 includes a first flow sensor 21 and a first valve 22 connected in series. Specifically, the input end of the first flow sensor 21 is connected to the liquid inlet pipe 1 through the first valve 22, and the output end of the first flow sensor 21 is connected to the input end of the cooling channel 51 of the mold 5; or, the output end of the first flow sensor 21 is connected to the input end of the cooling channel 51 of the mold 5 through the first valve 22, and the input end of the first flow sensor 21 is connected to the liquid inlet pipe 1.

[0062] The second flow meter assembly 3 includes a second flow sensor 31 and a second valve 32 connected in series. The second flow sensor 31 is connected to the liquid outlet pipe 4 through the second valve 32. Specifically, the input end of the second flow sensor 31 is connected to the input end of the cooling channel 51 of the mold 5 through the second valve 32, and the output end of the second flow sensor 31 is connected to the liquid outlet pipe 4. Alternatively, the output end of the second flow sensor 31 is connected to the liquid inlet pipe 1 through the second valve 32, and the input end of the first flow sensor 21 is connected to the output end of the cooling channel 51 of the mold 5.

[0063] Specifically, the first valve 22 and the second valve 32 can be solenoid valves or other types of automatic control valves.

[0064] In this embodiment, by setting a first valve 22 and a second valve 32 at both ends of the cooling channel 51 of the mold 5, if a cooling channel 51 in the mold 5 leaks liquid, the first valve 22 and the second valve at both ends of the cooling channel 51 can be closed to reduce the leakage and improve the safety of product production.

[0065] In one embodiment, such as Figure 1 As shown, an inlet valve 13 is provided on the inlet pipeline 1, and an air inlet valve 14 is provided on the inlet pipeline 1 between the inlet valve 13 and the output end of the inlet pipeline 1 for connecting to the air source 6. The air inlet valve 14 is connected to the judgment module signal.

[0066] Specifically, both the liquid inlet valve 13 and the air inlet valve 14 can be backflow preventers or solenoid valves, preferably backflow preventers, but can also be other types of automatic control valves.

[0067] It should be noted that the intake valve 14 can be installed on the distribution component 12 and communicate with the distribution chamber; or it can be installed on the input pipe 11.

[0068] In specific use, the air inlet valve 14 is connected to the high-pressure air source 6. If a cooling channel 51 in the mold 5 leaks, the determination module controls the liquid inlet valve 13 and the first valve 22 and the second valve 32 of the other cooling channel 51 circuit to close. Then, the air inlet valve 14 is opened to blow high-pressure gas into the leaking cooling channel 51 and blow out the cooling liquid in the leaking cooling channel 51. The cooling liquid and high-pressure gas can be discharged through the liquid outlet pipe 4 and enter the cooling liquid pool 7. The high-pressure gas is discharged from the exhaust port at the top of the cooling liquid pool 7.

[0069] After the coolant in the cooling channel 51 is drained, close the air intake valve 14 and the first valve 22 and the second valve 32 on both sides of the leaking cooling channel 51, and then open the liquid inlet valve 13 and the first valve 22 and the second valve 32 on both sides of the other cooling channel 51.

[0070] In this embodiment, by setting the liquid inlet valve 13 and the air inlet valve 14, the cooling liquid in the leaking cooling channel 51 can be discharged, preventing the cooling liquid in the leaking cooling channel 51 from being heated and vaporized due to the closure of the first valve 22 and the second valve 32 at both ends of the leaking cooling channel 51, which would aggravate the leakage during the continuous production process without stopping the line, thereby improving the safety of production.

[0071] In one embodiment, such as Figure 1 As shown, the mold cooling system also includes a coolant pool 7 and a first circulation pump 15. The inlet pipe 1 and the outlet pipe 4 are both connected to the coolant pool 7. The first circulation pump 15 is installed on the inlet pipe 1 or the outlet pipe 4. The first circulation pump 15 is communicatively connected to the determination module.

[0072] Specifically, the first circulation pump 15 is a centrifugal liquid pump, but it can also be other types of liquid-driven pumps.

[0073] In this embodiment, by setting a first circulation pump 15, the circulation speed of the cooling liquid in the mold cooling system is controlled, thereby improving the accuracy of temperature control of the mold 5.

[0074] In one embodiment, such as Figure 2 As shown, the mold cooling system also includes a cooling tower 8, a heat exchanger 9, a temperature sensor 16, a first circulation pipe 71, and a second circulation pipe 81. The heat exchanger 9 is provided with a first heat exchange channel and a second heat exchange channel, which can exchange heat. The coolant pool 7 is circulated and connected to the first heat exchange channel through the first circulation pipe 71, and the cooling tower 8 is circulated and connected to the second heat exchange channel through the second circulation pipe 81.

[0075] The first circulation pipeline 71 is equipped with a second circulation pump 711, the second circulation pipeline 81 is equipped with a third circulation pump 811, and the temperature sensor 16 is installed on the liquid inlet pipeline 1. The second circulation pump 711, the third circulation pump 811 and the temperature sensor 16 are all connected to the determination module.

[0076] In specific usage, such as Figure 2 As shown, when the determination module detects that the value detected by the temperature sensor 16 is greater than the set value, the determination module controls the second circulation pump 711 and the third circulation pump 811 to start, so that the low temperature cooling medium in the cooling tower 8 circulates in the second heat exchange channel in the heat exchanger 9 through the second circulation pipe 81, and the cooling liquid in the cooling liquid pool 7 circulates in the first heat exchange channel in the heat exchanger 9 through the first circulation pipe 71, thereby achieving the cooling liquid cooling.

[0077] In this embodiment, by setting up a cooling tower 8 and a heat exchanger 9 to exchange heat with the cooling liquid in the cooling liquid pool 7, the temperature stability of the cooling liquid in the cooling liquid pool 7 can be ensured.

[0078] In one embodiment, both the top of the dispensing component 12 and the top of the return component 42 are provided with exhaust valves; specifically, the exhaust valves are manual valves or automatic control valves, such as solenoid valves.

[0079] In actual use, when gas is introduced into the cooling channel 51 to drain the coolant, a certain amount of gas will accumulate at the top of the distribution chamber of the distribution component 12 and the top of the return chamber of the return component 42. This will affect the uniform distribution of coolant by the distribution component 12 and the return component 42. The exhaust valve can discharge the accumulated gas and reduce the probability of uneven distribution of coolant.

[0080] According to embodiments of this application, in another aspect, a production line body is provided, such as... Figure 2 As shown, the system includes a mold 5 and a mold cooling system in any embodiment of the first aspect. The mold 5 is provided with at least one cooling channel 51. The output end of the first flow meter assembly 2 is connected to the input end of the cooling channel 51 in the mold 5, and the input end of the second flow meter assembly 3 is connected to the output end of the cooling channel 51 in the mold 5.

[0081] Specifically, mold 5 can be a die-casting mold, such as a mold for producing automotive parts, such as an aluminum hydraulic injection mold for producing one-piece molded automotive rear floor; it can also be an injection mold, such as a mold for producing automotive decorative plastic parts.

[0082] In this embodiment, since the production line includes a mold cooling system, which has the same effect as the mold cooling system, it will not be described in detail here.

[0083] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and all such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A mold cooling system, characterized in that, include: Liquid inlet pipe (1), the input end of which is used to connect with the coolant pool (7); At least one first flow meter assembly (2), the input end of the first flow meter assembly (2) is connected to the output end of the liquid inlet pipe (1), and the output end of the first flow meter assembly (2) is used to connect to the input end of the cooling channel (51) in the mold (5); At least one second flow meter assembly (3), the input end of the second flow meter assembly (3) being used to communicate with the output end of the cooling channel (51) inside the mold (5); The liquid outlet pipe (4) has its input end connected to the output end of the second flow meter assembly (3), and its output end is used to connect to the cooling liquid pool (7). The determination module is connected to both the first flow meter component (2) and the second flow meter component (3) via communication. The determination module can determine whether the flow difference exceeds the set value based on the flow difference between the first flow meter component (2) and the second flow meter component (3). The first flow meter assembly (2) includes a first flow sensor (21) and a first valve (22) connected in series. The second flow meter assembly (3) includes a second flow sensor (31) and a second valve (32) connected in series; The liquid inlet pipeline (1) is provided with a liquid inlet valve (13), and an air inlet valve (14) is provided on the liquid inlet pipeline (1) between the liquid inlet valve (13) and the output end of the liquid inlet pipeline (1) for connecting with the air source (6). The air inlet valve (14) is connected to the judgment module signal.

2. The mold cooling system according to claim 1, characterized in that, There are multiple first flow meter components (2), and the input ends of multiple first flow meter components (2) are all connected to the output end of the liquid inlet pipe (1). The output ends of multiple first flow meter components (2) are respectively used to connect one-to-one with the input ends of multiple cooling channels (51) on the mold (5). There are multiple second flow meter components (3), and the input ends of the multiple second flow meter components (3) are respectively used to connect one-to-one with the output ends of multiple cooling channels (51) on the mold (5), and the output ends of the multiple second flow meter components (3) are all connected to the input end of the liquid outlet pipe (4); The determination module can determine whether the flow difference exceeds the set value based on the flow difference between the first flow meter component (2) and the second flow meter component (3) connected to each cooling channel (51).

3. The mold cooling system according to claim 2, characterized in that, The liquid inlet pipe (1) includes an input pipe (11) and at least one distribution component (12). The distribution component (12) is provided with a flow divider. The input end of the input pipe (11) is used to communicate with the coolant pool (7). The output end of the input pipe (11) is connected to the flow divider in the distribution component (12). The flow divider in the distribution component (12) is connected to the input end of the first flow meter assembly (2). The outlet pipe (4) includes an outlet pipe (41) and a return component (42). The return component (42) is provided with a return cavity. The output end of the second flow meter assembly (3) is connected to the return cavity in the return component (42). The return cavity in the return component (42) is connected to the input end of the outlet pipe (41). The output end of the outlet pipe (41) is used to connect to the coolant pool (7).

4. The mold cooling system according to claim 3, characterized in that, There are two distribution components (12) and two return components (42). One distribution component (12) and one return component (42) are both used to communicate with the cooling channel (51) in the moving mold (52) of the mold (5); the other distribution component (12) and the other return component (42) are both used to communicate with the cooling channel (51) in the fixed mold (53) of the mold (5).

5. The mold cooling system according to any one of claims 1 to 4, characterized in that, It also includes a coolant pool (7) and a first circulation pump (15). The inlet pipe (1) and the outlet pipe (4) are both connected to the coolant pool (7). The first circulation pump (15) is installed on the inlet pipe (1) or the outlet pipe (4). The first circulation pump (15) is communicatively connected to the determination module.

6. The mold cooling system according to claim 5, characterized in that, It also includes a cooling tower (8), a heat exchanger (9) and a temperature sensor (16). The heat exchanger (9) is provided with a first heat exchange channel and a second heat exchange channel. The coolant pool (7) is circulated and connected to the first heat exchange channel through a first circulation pipe (71). The cooling tower (8) is circulated and connected to the second heat exchange channel through a second circulation pipe (81). The first circulation pipeline (71) is equipped with a second circulation pump (711), the second circulation pipeline (81) is equipped with a third circulation pump (811), the temperature sensor (16) is installed on the liquid inlet pipeline (1), and the second circulation pump (711), the third circulation pump (811) and the temperature sensor (16) are all connected to the determination module.

7. The mold cooling system according to claim 3 or 4, characterized in that, Both the top of the distribution component (12) and the top of the return component (42) are provided with vent valves.

8. A production line body, characterized in that, include: The mold (5) has at least one cooling channel (51) inside it; The mold cooling system according to any one of claims 1 to 7, wherein the output end of the first flow meter assembly (2) is connected to the input end of the cooling channel (51) in the mold (5), and the input end of the second flow meter assembly (3) is connected to the output end of the cooling channel (51) in the mold (5).

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