Mold with a dot-jet cooling system

Abstract

A mold with a point spray cooling system includes a module provided with a first cooling groove and a second cooling groove; it is characterized in that it also includes a first point cooling assembly and a second point cooling assembly arranged on the module; the first point cooling assembly includes a first refrigerant transmission channel, a first refrigerant nozzle and a first plug block covering the notch of the first cooling groove, the first plug block is provided with a first block channel connected to the first cooling groove, one end of the first refrigerant nozzle passes through the first block channel and extends into the first cooling groove, and the other end is connected to the first refrigerant transmission channel; the second point cooling assembly includes a second refrigerant transmission channel, a second refrigerant nozzle Tube and a second plug block covering the slot of the second cooling groove, the second plug block is provided with a second block channel connected to the second cooling groove, one end of the second refrigerant nozzle passes through the second block channel and extends into the second cooling groove, and the other end is connected to the second refrigerant transmission channel; the first block channel is connected to the second block channel, the first refrigerant transmission channel can be used to supply refrigerant to the first refrigerant nozzle, or to recover the waste refrigerant flowing into the first refrigerant nozzle; the second refrigerant transmission channel can be used to supply refrigerant to the second refrigerant nozzle, or to recover the waste refrigerant flowing into the second refrigerant nozzle.

Description

Technical Field

[0001] The present invention relates to a mold for producing molded parts. Molds come in many varieties, generally including injection molding, blow molding, extrusion, die casting, or casting molds. Hot-processing molds such as injection molding and casting require cooling after forming the part, so they are often equipped with a cooling system. The present invention provides a mold with a spot-spray cooling system that can locally cool the part. Background Art

[0002] Parts made using hot processing molds such as injection molding and casting are affected by factors such as processing technology and structure. There are often multiple hot nodes of different sizes and positions on them. Some hot nodes require long-term cooling in the early stage of part solidification, some hot nodes require intermittent multiple-cycle cooling in the later stage of part solidification, and some hot nodes require continuous cooling throughout the solidification period of the part. The cooling time, cooling duration, cooling temperature and cooling times of hot nodes of different positions and sizes need to be specifically set according to the characteristics of the hot nodes. This requires the cooling system to have the ability to flexibly set cooling schemes. Chinese utility model patent 202023007601.5 discloses a cooling device for injection molds, including a mold assembly and a cooling assembly. Among them, the cooling component includes a water tank, and a plurality of water inlet pipes and water outlet pipes are provided at one end of the water tank; the mold assembly includes an upper mold and a lower mold, and the upper mold and the lower mold are both provided with cooling channels, and the cooling channels are provided with a plurality of independent circulation channels, and each of the circulation channels is provided with a water inlet and a water outlet, and the water inlet is connected to the water inlet pipe, and the water outlet is connected to the water outlet pipe. In this way, multiple positions or one position can be selectively cooled through multiple circulation channels. However, the circulation channels are isolated from each other. No matter what cooling scheme is adopted, the refrigerant entering any of the circulation channels is discharged and recycled after a cycle of cooling treatment, and cannot enter other circulation channels for secondary cooling of other heat nodes, resulting in a waste of resources, which is not in line with the current energy-saving and environmental protection concept advocated. Summary of the Invention

[0003] In response to the deficiencies of the prior art, the present invention proposes a mold with a point-spray cooling system, which can not only be used to flexibly configure cooling solutions, but also can be used to configure cooling solutions that reuse refrigerants, thereby saving energy and reducing energy consumption. Specifically, the mold with a point-spray cooling system proposed in the present invention includes a module provided with a first cooling groove and a second cooling groove; it is characterized in that it also includes a first point cooling assembly and a second point cooling assembly provided on the module; the first point cooling assembly includes a first refrigerant transmission channel, a first refrigerant nozzle, and a first plug block that covers the notch of the first cooling groove, the first plug block is provided with a first block channel connected to the first cooling groove, one end of the first refrigerant nozzle passes through the first block channel and extends into the first cooling groove, and the other end is connected to the first refrigerant transmission channel; the second point cooling assembly includes a second refrigerant transmission channel, A second refrigerant nozzle and a second plug block covering the slot of the second cooling groove, the second plug block is provided with a second block channel connected to the second cooling groove, one end of the second refrigerant nozzle passes through the second block channel and extends into the second cooling groove, and the other end is connected to the second refrigerant transmission channel; the first block channel is connected to the second block channel, the first refrigerant transmission channel can be used to supply refrigerant to the first refrigerant nozzle, or to recover the waste refrigerant flowing into the first refrigerant nozzle; the second refrigerant transmission channel can be used to supply refrigerant to the second refrigerant nozzle, or to recover the waste refrigerant flowing into the second refrigerant nozzle.

[0004] The first refrigerant nozzle is used to spray refrigerant into the first cooling tank for local cooling. Similarly, the second refrigerant nozzle is used to spray refrigerant into the second cooling tank for local cooling.

[0005] The first refrigerant transmission channel and the second refrigerant transmission channel have the dual purpose of supplying refrigerant and recovering waste refrigerant.

[0006] The first block channel and the second block channel are connected, and they can be connected directly or through a transition pipe, such as the intermediate connecting pipe discussed below. In this way, refrigerant can flow between the first block channel and the second block channel, providing a technical basis for the first and second refrigerant transmission channels to have the dual purpose of supplying refrigerant and recovering waste refrigerant. The point spray cooling system can be applied to various cooling schemes, such as a cooling scheme in which the first refrigerant transmission channel is configured to supply refrigerant to the first refrigerant nozzle, and the second refrigerant transmission channel is configured to recover waste refrigerant. In this way, the refrigerant sprayed from the first refrigerant nozzle flows into the first cooling tank for cooling, then flows into the first block channel and the second block channel in sequence, then flows into the second cooling tank for secondary cooling, and finally flows into the second refrigerant transmission channel through the second refrigerant nozzle. Alternatively, the second refrigerant transmission channel is configured to supply refrigerant to the second refrigerant nozzle, and the first refrigerant transmission channel is configured to recover waste refrigerant.

[0007] According to the above technical solution, compared with the prior art, the beneficial technical effect of the present invention is that: since the first point cooling assembly and the second point cooling assembly adopt the above-mentioned flow channel structure, the time, duration and frequency of spraying refrigerant by the first refrigerant nozzle and the second refrigerant nozzle can be set separately to form a variety of cooling schemes. In addition, the first refrigerant transmission channel and the second refrigerant transmission channel have the dual purpose of supplying refrigerant and recycling waste refrigerant. When a cooling scheme is configured in which one of the two refrigerant transmission channels supplies refrigerant and the other recycles waste refrigerant, the utilization rate of the refrigerant can be improved, that is, both the first cooling tank and the second cooling tank can be cooled, thereby saving energy and reducing energy consumption. It can be seen that the point-spraying cooling system proposed by the present invention can not only flexibly configure cooling schemes, but also be used to configure cooling schemes for reusing refrigerants.

[0008] A further technical solution may also be that the first spot cooling assembly also includes a first main pipeline connected to the first refrigerant transmission channel, a first supply main branch for supplying refrigerant, a first recovery main branch for recovering waste refrigerant, and a first reversing valve, the first reversing valve being arranged between the first main pipeline, the first supply main branch, and the first recovery main branch, the first reversing valve being used to selectively connect the first main pipeline and the first supply main branch, or the first main pipeline and the first recovery main branch, or selectively close the first main pipeline; the second spot cooling assembly also includes a second main pipeline connected to the second refrigerant transmission channel, a second supply main branch for supplying refrigerant, a second recovery main branch for recovering waste refrigerant, and a second reversing valve, the second reversing valve being arranged between the second main pipeline, the second supply main branch, and the second recovery main branch, the second reversing valve being used to selectively connect the second main pipeline and the second supply main branch, or the second main pipeline and the second recovery main branch, or selectively close the second main pipeline. In this way, the use of the first refrigerant transmission channel and the second refrigerant transmission channel can be conveniently switched through the first reversing valve and the second reversing valve.

[0009] A further technical solution may also include a first hollow transmission profile tube, wherein the first refrigerant transmission channel is formed by the hollow tube cavity of the first transmission profile tube, and the first transmission profile tube is spaced apart from the module and the first plug block; and a second hollow transmission profile tube is also included, wherein the second refrigerant transmission channel is formed by the hollow tube cavity of the second transmission profile tube, and the second transmission profile tube is spaced apart from the first transmission profile tube, the module, and the second plug block. In this way, the heat transfer between the module, the first plug block and the refrigerant flowing in the first refrigerant transmission channel and the second refrigerant transmission channel can be reduced, and the heat transfer between the refrigerants in the first refrigerant transmission channel and the second refrigerant transmission channel can also be reduced.

[0010] A further technical solution may also be that at least two first cooling grooves are provided on the module, at least two first refrigerant nozzles are connected to the first refrigerant transmission channel, and one first refrigerant nozzle is used to spray refrigerant to one first cooling groove; at least two second cooling grooves are provided on the module, at least two second refrigerant nozzles are connected to the second refrigerant transmission channel, and one second refrigerant nozzle is used to spray refrigerant to one second cooling groove.

[0011] A further technical solution may include an intermediate connecting pipe, one end of which is connected to the first block passage and the other end is connected to the second block passage, and the intermediate connecting pipe is spaced apart from the module. This can reduce heat transfer between the refrigerant in the intermediate connecting pipe and the module.

[0012] A further technical solution may be that the module is used to form a hub cavity, and the hub cavity includes a spoke cavity for manufacturing hub spokes; the first refrigerant nozzle and the second refrigerant nozzle are arranged corresponding to the inner and outer ends of the spoke cavity respectively.

[0013] A further technical solution may also include a secondary pipe, which is connected to the first block channel and the second block channel; the secondary pipe can be selected to supply refrigerant to the first block channel and the second block channel, or to recover the waste refrigerant flowing out of the first block channel and the second block channel. According to the above technical solution, the secondary pipe can be configured to supply refrigerant to the first block channel and the second block channel, the first refrigerant transmission channel recovers the waste refrigerant flowing into the first refrigerant nozzle, and the second refrigerant transmission channel recovers the waste refrigerant flowing into the second refrigerant nozzle. In this way, the refrigerant supplied by the secondary pipe is diverted to the first block channel and the second block channel, and then flows into the first cooling tank and the second cooling tank respectively for cooling, and finally flows through the first refrigerant nozzle and the second refrigerant nozzle and flows into the first refrigerant transmission channel and the second refrigerant transmission channel respectively for recovery. Compared with the cooling scheme in which the first refrigerant transmission channel and the second refrigerant transmission channel supply refrigerant at the same time, the refrigerant flow rate sprayed from the first refrigerant nozzle and the second refrigerant nozzle is reduced, thereby reducing the cooling intensity. Alternatively, the second refrigerant transmission channel is configured to supply refrigerant to the second refrigerant nozzle, and the auxiliary pipeline and the first refrigerant transmission channel are simultaneously used for a cooling scheme for recycling waste refrigerant. This is beneficial for increasing the waste refrigerant recycling speed and improving the cooling efficiency. Of course, other cooling schemes can also be configured, which are not listed one by one. It can be seen that the auxiliary pipeline has a dual purpose, and the addition of the auxiliary pipeline provides more possibilities for further flexible configuration of cooling schemes.

[0014] A further technical solution may also include a supply sub-branch for supplying refrigerant, a recovery sub-branch for recovering waste refrigerant, and a sub-reversing valve, the sub-reversing valve being disposed between the sub-pipe, the supply sub-branch, and the recovery sub-branch. The sub-reversing valve is configured to selectively connect the sub-pipe with the supply sub-branch, or with the recovery sub-branch, or to selectively close the sub-pipe. Thus, the use of the sub-pipe can be conveniently switched via the sub-reversing valve.

[0015] Since the present invention has the above characteristics and advantages, it can be applied to a mold with a point spray cooling system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic cross-sectional view of a mold with a point-spray cooling system using the technical solution of the present invention;

[0017] Figure 2 It is a schematic diagram of the planar structure of the module;

[0018] Figure 3 yes Figure 1 The enlarged view of part A in the middle shows that the spray cooling system adopts the second cooling solution. Implementation Method

[0019] The following, in conjunction with the accompanying drawings, further describes the structure of a mold with a spot spray cooling system employing the technical solution of the present invention. Unless explicitly stated as equivalent or alternative embodiments, the various detailed implementations disclosed below may be applied selectively or combined in a single embodiment, even if they are not directly related or synergistic in functionality.

[0020] like Figures 1 to 3 As shown, the present invention proposes a mold with a spot spray cooling system. The spot spray cooling system is suitable for hot processing molds using molding processes such as injection molding and casting. The following is an example of a wheel hub casting mold. The mold includes a module 5 for forming a wheel hub cavity, and the wheel hub cavity includes a spoke cavity for manufacturing the wheel hub spokes. A first cooling groove 51, a second cooling groove 52, and a third cooling groove 53 are provided on the wall of the module 5 forming the spoke cavity. The mold also includes a first spot cooling assembly 100 and a second spot cooling assembly 200 provided on the module 5.

[0021] The first spot cooling assembly 100 includes a first refrigerant transmission channel 10, a first refrigerant nozzle 11, and a first plug block 12 that covers the notch of the first cooling groove 51. The first plug block 12 is provided with a first block channel 120 connected to the first cooling groove 51. One end of the first refrigerant nozzle 11 passes through the first block channel 120 and extends into the first cooling groove 51, and the other end is connected to the first refrigerant transmission channel 10. The first spot cooling assembly 100 also includes a hollow first transmission profile tube 1. The first refrigerant transmission channel 10 is formed by the hollow tube cavity of the first transmission profile tube 1. The first transmission profile tube 1 is spaced apart from the module 5 and the first plug block 12. In this way, the heat transfer between the refrigerant in the first transmission profile tube 1 and the module 5 and the first plug block 12 can be reduced. The first spot cooling assembly 100 also includes a first main pipeline 13 connected to the first refrigerant transmission channel 10, a first supply main branch 14 for supplying refrigerant, a first recovery main branch 15 for recovering waste refrigerant, and a first reversing valve 16. The first reversing valve 16 is arranged between the first main pipeline 13, the first supply main branch 14, and the first recovery main branch 15. The first reversing valve 16 is used to selectively connect the first main pipeline 13 and the first supply main branch 14, or the first main pipeline 13 and the first recovery main branch 15, or selectively close the first main pipeline 13.

[0022] The second point cooling assembly 200 includes a second refrigerant transmission channel 20, a second refrigerant nozzle 21 and a second plug block 22 that covers the slot of the second cooling groove 52. The second plug block 22 is provided with a second block channel 220 connected to the second cooling groove 52. One end of the second refrigerant nozzle 21 passes through the second block channel 220 and extends into the second cooling groove 52, and the other end is connected to the second refrigerant transmission channel 20. The second spot cooling assembly 200 also includes a second main pipe 23 connecting the second refrigerant transmission channel 20, a second main supply pipe 24 for supplying refrigerant, a second main recovery pipe 25 for recovering waste refrigerant, and a second reversing valve 26. The second reversing valve 26 is disposed between the second main pipe 23, the second main supply pipe 24, and the second main recovery pipe 25. The second reversing valve 26 is configured to selectively connect the second main pipe 23 with the second main supply pipe 24, or the second main pipe 23 with the second main recovery pipe 25, or selectively close the second main pipe 23. The second spot cooling assembly 200 also includes a hollow second transmission profile pipe 2. The second refrigerant transmission channel 20 is formed by the hollow tube cavity of the second transmission profile pipe 2. The second transmission profile pipe 2 is spaced apart from the first transmission profile pipe 1, the module 5, and the second plug block 22. This reduces heat transfer between the refrigerant in the second transmission profile pipe 2 and the first transmission profile pipe 1, the module 5, and the second plug block 22.

[0023] The first block channel 120 is connected to the second block channel 220. They can be directly connected, but in the present embodiment, they are connected through an intermediate connecting pipe 6. One end of the intermediate connecting pipe 6 is connected to the first block channel 120, and the other end is connected to the second block channel 220. The intermediate connecting pipe 6 is spaced apart from the module 5. In this way, the heat transfer between the refrigerant in the intermediate connecting pipe 6 and the module 5 can be reduced. The first refrigerant transmission channel 10 can be used to supply refrigerant to the first refrigerant nozzle 11, or to recover the waste refrigerant flowing into the first refrigerant nozzle 11; the second refrigerant transmission channel 20 can be used to supply refrigerant to the second refrigerant nozzle 21, or to recover the waste refrigerant flowing into the second refrigerant nozzle 21.

[0024] Furthermore, a third point cooling assembly 300 is provided on the intermediate connecting pipe 6. The structure and purpose of the third point cooling assembly 300 are similar to those of the first point cooling assembly 100 and are not described in detail here. The intermediate connecting pipe 6 communicates with a third blocking channel 320 of the third point cooling assembly 300. In other embodiments, the third point cooling assembly 300 may be omitted.

[0025] Furthermore, the system includes a secondary pipe 4 that communicates with the first and second block passages 120 and 220. In this embodiment, the secondary pipe 4 communicates with the first and second block passages 120 and 220 via the intermediate connecting pipe 6. The secondary pipe 4 can be used to supply refrigerant to the first and second block passages 120 and 220, or to recover waste refrigerant flowing out of the first and second block passages 120 and 220. Furthermore, the system includes a secondary supply branch pipe 44 for supplying refrigerant, a secondary recovery branch pipe 45 for recovering waste refrigerant, and a secondary reversing valve 46. The secondary reversing valve 46 is disposed between the secondary pipe 4, the secondary supply branch pipe 44, and the recovery branch pipe 45. The secondary reversing valve 46 is used to selectively connect the secondary pipe 4 with the secondary supply branch pipe 44, or with the recovery branch pipe 45, or to selectively close the secondary pipe 4.

[0026] Since the first point cooling assembly 100, the second point cooling assembly 200 and the third point cooling assembly 300 adopt the above-mentioned flow channel structure, the time, duration and frequency of spraying refrigerant by the first refrigerant nozzle 11, the second refrigerant nozzle 21 and the third refrigerant nozzle 31 can be set separately, and the first block channel 120, the second block channel 220 and the third block channel 320 are connected, providing a technical basis for the first refrigerant transmission channel 10, the second refrigerant transmission channel 20 and the third refrigerant transmission channel 30 to have the dual purpose of supplying refrigerant and recycling waste refrigerant. In addition, the auxiliary pipe 4 has a dual purpose, and the addition of the auxiliary pipe 4 provides more possibilities for further flexible configuration of cooling solutions. The point spray cooling system is applicable to a variety of cooling solutions. For example, a first cooling scheme is configured as follows: the secondary reversing valve 46 connects the secondary pipeline 4 with the secondary recovery branch 45, allowing the secondary pipeline 4 to recover the waste refrigerant flowing out of the first block channel 120, the second block channel 220, and the third block channel 320. The first reversing valve 16 connects the first main pipeline 13 with the first medium supply main branch 14, allowing the first refrigerant transmission channel 10 to supply refrigerant to the first refrigerant nozzle 11. Similarly, by switching the diversion direction of the second reversing valve 26 and the third reversing valve 36, the second refrigerant transmission channel 20 supplies refrigerant to the second refrigerant nozzle 21, and the third refrigerant transmission channel 30 supplies refrigerant to the third refrigerant nozzle 31. The first refrigerant nozzle 11 and the second refrigerant nozzle 21 are respectively arranged at the inner and outer ends of the spoke cavity, and the third refrigerant nozzle 31 is arranged in the middle of the spoke cavity. The refrigerant sprayed from the first refrigerant nozzle 11 flows into the first cooling tank 51 for cooling, then flows through the first blocking block channel 120 and the third blocking block channel 320 in sequence, and then flows into the secondary pipe 4 for recovery. Similarly, the refrigerant sprayed from the second refrigerant nozzle 21 and the third refrigerant nozzle 31 also flows into the secondary pipe 4 for recovery.

[0027] Or, if Figure 3As shown, the second cooling scheme is configured as follows: the auxiliary pipeline 4 is closed by the auxiliary reversing valve 46, the third main pipeline 33 is closed by the third reversing valve 36, the first main pipeline 13 and the first medium supply main branch 14 are connected by the first reversing valve 16, so that the first refrigerant transmission channel 10 supplies refrigerant to the first refrigerant nozzle 11, and the second main pipeline 23 and the second recovery main branch 25 are connected by the second refrigerant valve 26, so that the second refrigerant transmission channel 20 recovers the waste refrigerant flowing into the second refrigerant nozzle 21. The refrigerant sprayed from the first refrigerant nozzle 11 flows into the first cooling tank 51 for cooling, then flows through the first block channel 120 and the third block channel 320 in sequence, and then flows into the second block channel 220, and then flows into the second cooling tank 52 for secondary cooling, and then flows into the second refrigerant transmission channel 20 through the second refrigerant nozzle 21 for recovery. This increases the frequency of refrigerant usage, meaning the refrigerant can cool both the first cooling tank 51 and the second cooling tank 52, saving energy and reducing consumption. The aforementioned cooling scheme can also be modified to close the second main pipe 23 via the second reversing valve 26, connect the third main pipe 33 to the third main supply pipe 34 via the third reversing valve 36, and connect the secondary pipe 4 to the secondary recovery pipe 45 via the secondary reversing valve 46. Numerous cooling schemes are applicable to the aforementioned spot-spray cooling system, which are not listed here.

[0028] Furthermore, at least two first cooling grooves 51 are provided on the module 5, and at least two first refrigerant nozzles 11 are connected to the first refrigerant transmission channel 10, and one first refrigerant nozzle 11 is used to spray refrigerant to one first cooling groove 51; at least two second cooling grooves 52 are provided on the module 5, and at least two second refrigerant nozzles 21 are connected to the second refrigerant transmission channel 20, and one second refrigerant nozzle 21 is used to spray refrigerant to one second cooling groove 52.

Claims

1. A mold with a spray cooling system, comprising a module provided with a first cooling trough and a second cooling trough; characterized in that , further comprising a first point cooling assembly and a second point cooling assembly provided on the module; The first point cooling assembly includes a first refrigerant transmission channel, a first refrigerant nozzle, and a first plugging block covering a notch of the first cooling groove. The first plugging block is provided with a first blocking channel connected to the first cooling groove. One end of the first refrigerant nozzle passes through the first blocking channel and extends into the first cooling groove, and the other end is connected to the first refrigerant transmission channel. The second point cooling assembly includes a second refrigerant transmission channel, a second refrigerant nozzle, and a second plugging block covering the notch of the second cooling groove. The second plugging block is provided with a second blocking block channel connected to the second cooling groove. One end of the second refrigerant nozzle passes through the second blocking block channel and extends into the second cooling groove, and the other end is connected to the second refrigerant transmission channel. The first block channel is connected to the second block channel, the first refrigerant transmission channel is selected to supply refrigerant to the first refrigerant nozzle, or to recover the waste refrigerant flowing into the first refrigerant nozzle; the second refrigerant transmission channel is selected to supply refrigerant to the second refrigerant nozzle, or to recover the waste refrigerant flowing into the second refrigerant nozzle; The first spot cooling assembly further includes a first main pipe connected to the first refrigerant transmission channel, a first supply main branch pipe for supplying refrigerant, a first recovery main branch pipe for recovering waste refrigerant, and a first reversing valve; the second spot cooling assembly further includes a second main pipe connected to the second refrigerant transmission channel, a second supply main branch pipe for supplying refrigerant, a second recovery main branch pipe for recovering waste refrigerant, and a second reversing valve; It also includes an intermediate connecting pipe, one end of which is connected to the first block channel, and the other end of which is connected to the second block channel, and the intermediate connecting pipe is spaced apart from the module; It also includes a secondary pipeline, which is connected to the first block channel and the second block channel through the intermediate connecting pipe; the secondary pipeline is selected to supply refrigerant to the first block channel and the second block channel, or to recover waste refrigerant flowing out of the first block channel and the second block channel.

2. The mold with a point spray cooling system according to claim 1, characterized in that: The first reversing valve is disposed between the first main pipeline, the first medium supply main branch, and the first recovery main branch. The first reversing valve is used to selectively connect the first main pipeline with the first medium supply main branch, or the first main pipeline with the first recovery main branch, or selectively close the first main pipeline. The second reversing valve is arranged between the second main pipeline, the second medium supply main branch, and the second recovery main branch. The second reversing valve is used to selectively connect the second main pipeline and the second medium supply main branch, or the second main pipeline and the second recovery main branch, or selectively close the second main pipeline.

3. The mold with a point spray cooling system according to claim 1, characterized in that: It also includes a hollow first transmission profile tube, the first refrigerant transmission channel is formed by the hollow tube cavity of the first transmission profile tube, and the first transmission profile tube is spaced apart from the module and the first plug block; It also includes a hollow second transmission profile tube, the second refrigerant transmission channel is formed by the hollow tube cavity of the second transmission profile tube, and the second transmission profile tube is arranged at intervals from the first transmission profile tube, the module, and the second plug block.

4. The mold with a point spray cooling system according to claim 1, characterized in that: At least two first cooling grooves are provided on the module, and at least two first refrigerant spray pipes are connected to the first refrigerant transmission channel, and one first refrigerant spray pipe is used to spray refrigerant into one first cooling groove; At least two second cooling grooves are provided on the module, and at least two second refrigerant nozzles are connected to the second refrigerant transmission channel. One second refrigerant nozzle is used to spray refrigerant into one second cooling groove.

5. The mold with a point spray cooling system according to claim 1, characterized in that: The module is used to form a hub cavity, which includes a spoke cavity for manufacturing hub spokes; the first refrigerant nozzle and the second refrigerant nozzle are arranged corresponding to the inner and outer ends of the spoke cavity respectively.

6. The mold with a point spray cooling system according to claim 1, characterized in that: It also includes a supply sub-branch for supplying refrigerant, a recovery sub-branch for recovering waste refrigerant, and a sub-reversing valve. The sub-reversing valve is arranged between the sub-pipeline, the supply sub-branch, and the recovery sub-branch. The sub-reversing valve is used to selectively connect the sub-pipeline and the supply sub-branch, or the sub-pipeline and the recovery sub-branch, or selectively close the sub-pipeline.

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