Cooling mechanism for automobile part injection mold

Abstract

The utility model provides an automobile part injection mold cooling mechanism, which relates to the technical field of automobile part processing and comprises a mold body, a cooling component is arranged in the mold body, a water supply component is arranged on one side of the mold body, and a circulating component is arranged between the water supply component and the mold body. The cooling assembly comprises a heat buffering cavity and a cooling cavity, the heat buffering cavity is formed in the mold body, the cooling cavity is formed in the side, close to the heat buffering cavity, of the interior of the mold body, and by arranging the cooling assembly, when the temperature of the mold rises, heat is firstly transferred into the heat buffering cavity and is dispersed and balanced in the heat buffering cavity; and then, cooling liquid is injected into the cooling pipe, when the cooling liquid flows through the cooling pipe, heat absorbed in the heat buffering cavity in advance is taken away, meanwhile, the mold body is cooled, the temperature difference between the mold body and the cooling liquid is reduced, and therefore the service life of the mold is prolonged, and the cooling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts processing, in particular to a cooling mechanism for an automobile parts injection mold. Background Art

[0002] The cooling mechanism of the injection mold for automotive parts is a device used to control the mold temperature to accelerate the cooling and solidification process of the plastic parts in the mold.

[0003] Patent CN215703840U discloses an injection mold cooling mechanism for the production of automotive parts. The injection mold cooling mechanism described in the utility model for the production of automotive parts, when working, a water pump sends a certain amount of cooling water in a cooling water circulation box into a cooling pipe, and a micro air pump sends gas into the cooling pipe through an air inlet pipe, thereby accelerating the flow of cooling water in the cooling pipe and accelerating the cooling speed of the injection mold; the water pump continuously sends the cooling water with increased temperature into the cooling water circulation box, and at the same time, the cooled water in the cooling water circulation box is sent back into the cooling pipe through the water pump. This cycle ensures that the heat absorption effect of the cooling pipe is optimal and accelerates the cooling of the injection mold.

[0004] The above technical solution sets up a water pump and a micro air pump, starts the water pump to send the coolant into the interior of the cooling pipe, and then starts the micro air pump to inject air into the interior of the cooling pipe to speed up the flow of the coolant, thereby quickly cooling the mold and solving the problem of long mold cooling cycle.

[0005] However, in actual use, the following shortcomings still exist. For example, although the combination of a water pump and a micro air pump shortens the mold cooling cycle, the rapid cooling of the mold will cause a large temperature difference between the inner and outer layers of the mold, which may cause cracks on the mold surface, which is not conducive to improving the service life of the mold. Therefore, the utility model proposes a cooling mechanism for an automotive parts injection mold. Utility Model Content

[0006] The purpose of the utility model is to solve the shortcomings of the prior art and provide a cooling mechanism for an injection mold of an automobile part.

[0007] In order to achieve the above-mentioned object, the utility model adopts the following technical solution: a cooling mechanism for an injection mold of an automobile part, comprising a mold body, a cooling assembly disposed inside the mold body, a water supply assembly disposed on one side of the mold body, and a circulation assembly disposed between the water supply assembly and the mold body;

[0008] The cooling assembly includes a heat cache chamber and a cooling chamber. The heat cache chamber is opened inside the mold body, and the cooling chamber is opened on the side of the mold body close to the heat cache chamber. A partition is provided between the heat cache chamber and the cooling chamber, and the partition is fixedly connected to the mold body. A heat-conductive filler is provided inside the heat cache chamber, and a cooling pipe is provided on the side of the cooling chamber close to the partition.

[0009] As a preferred embodiment, the cooling tube and the strip structure, and the output end and input end of the heat-conducting filler are fixedly connected by a connecting tube.

[0010] The technical effect of adopting the above technical solution is that the contact area between the cooling pipe and the partition can be increased, thereby improving the cooling efficiency.

[0011] As a preferred embodiment, the water supply assembly includes a water tank, a normal temperature chamber, and a cold water chamber. The water tank is arranged on one side of the mold body, the normal temperature chamber is opened inside the water tank, and the cold water chamber is opened on the side of the water tank close to the normal temperature chamber. The side of the water tank close to the normal temperature chamber and the cold water chamber are both fixedly connected to a water pump 1, and a hose 1 is fixedly connected between the water pump 1 and the connecting pipe close to the input end of the cooling pipe, and the end of the hose 1 close to the water pump 1 is fixedly connected to a solenoid valve.

[0012] The technical effect of adopting the above technical solution is to gradually reduce the temperature of the mold body, achieve a smooth transition from high temperature to low temperature, reduce the generation of thermal stress, gradually increase the temperature difference, thereby improving the cooling efficiency, which is conducive to further improving the service life and cooling efficiency of the mold body.

[0013] As a preferred embodiment, a heat insulation board is fixedly connected between the normal temperature chamber and the cold water chamber.

[0014] The technical effect of adopting the above technical solution is that it can effectively prevent heat from being transferred between the two areas.

[0015] As a preferred embodiment, the circulation component includes a water pump 2 and a hose 2. The water pump 2 is fixedly connected to the water tank. The hose 2 is fixedly connected between the water pump 2 and the connecting pipe near the output end of the cooling pipe. The output end of the water pump 2 is fixedly connected to a shunt pipe, and the shunt pipe is connected to the normal temperature chamber and the cold water chamber.

[0016] The technical effect of adopting the above technical solution is that the recovered coolant is sent into the normal temperature chamber and the cold water chamber through the diversion pipe, so as to facilitate the circulation of the coolant.

[0017] As a preferred embodiment, a heat sink is fixedly connected to the diversion pipe, a heat dissipation port is provided on the side of the water tank close to the normal temperature chamber, and a fan is provided on the side of the water tank close to the cold water chamber.

[0018] The technical effect of adopting the above technical solution is that the cooling liquid is reused and the temperature of the cooling liquid in the cold water chamber is ensured to be always lower than the temperature of the cooling liquid in the normal temperature chamber.

[0019] As a preferred embodiment, the inner diameter of the sealing plate three is larger than the inner diameter of the inner groove.

[0020] The technical effect of adopting the above technical solution is that an inner groove is opened. Since the outer diameter of the inner groove is larger than the inner diameter of the sealing plate three, the sealing performance of the sealing plates two and three is ensured while the sealing plate two can move with the connecting pipe.

[0021] Compared with the prior art, the advantages and positive effects of the present invention are:

[0022] 1. By setting up a cooling component, a heat buffer chamber is set up in the mold body and filled with thermal conductive filler. When the mold temperature rises, the heat is first transferred to the heat buffer chamber. The thermal conductive filler can quickly absorb and conduct the heat, and disperse and balance it inside the heat buffer chamber. Subsequently, coolant is injected into the cooling pipe. When the coolant flows through the cooling pipe, it not only takes away the heat pre-absorbed in the heat buffer chamber, but also cools the mold body, reducing the temperature difference between the mold body and the coolant, thereby helping to extend the service life of the mold and improve cooling efficiency.

[0023] 2. By setting up a water supply component and starting water pump 1, the coolant with a higher temperature in the normal temperature chamber is transported to the inside of the cooling pipe. This process causes the temperature of the mold body to gradually drop, thereby achieving a smooth transition from high temperature to low temperature, effectively reducing the generation of thermal stress. As the temperature of the mold body gradually decreases, water pump 1 then inputs the coolant with a lower temperature in the cold water chamber into the cooling pipe to gradually increase the temperature difference, thereby improving the cooling efficiency. This control method not only helps to extend the service life of the mold body, but also improves the cooling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural diagram of a cooling mechanism for an automotive parts injection mold provided by the utility model;

[0025] Figure 2 This is a schematic structural diagram of a cooling assembly in a cooling mechanism for an automotive parts injection mold provided by the utility model;

[0026] Figure 3This is a schematic structural diagram of a cooling pipe in a cooling mechanism of an automobile parts injection mold provided by the utility model;

[0027] Figure 4 This is a schematic structural diagram of a circulation component in a cooling mechanism of an injection mold for an automobile part provided by the utility model;

[0028] Figure 5 The utility model provides a structural schematic diagram of a water supply component in a cooling mechanism of an injection mold for an automobile part.

[0029] Legend:

[0030] 1. Mold body;

[0031] 2. Cooling assembly; 21. Heat buffer chamber; 22. Cooling chamber; 23. Partition; 24. Thermal conductive filler; 25. Cooling pipe;

[0032] 3. Water supply assembly; 31. Water tank; 32. Water pump 1; 33. Hose 1; 34. Heat insulation board; 35. Normal temperature chamber; 36. Cold water chamber; 37. Solenoid valve;

[0033] 4. Circulation assembly; 41. Water pump 2; 42. Hose 2; 43. Diverter pipe; 44. Heat sink; 45. Fan; 46. Heat dissipation vent;

[0034] 5. Connecting pipe. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] like Figure 1 - Figure 5 As shown, this embodiment provides a technical solution: a cooling mechanism for an automobile parts injection mold, comprising a mold body 1, a cooling component 2 disposed inside the mold body 1, a water supply component 3 disposed on one side of the mold body 1, and a circulation component 4 disposed between the water supply component 3 and the mold body 1;

[0037] like Figure 2 - Figure 3As shown, the cooling component 2 includes a heat cache chamber 21 and a cooling chamber 22. The heat cache chamber 21 is opened inside the mold body 1, and the cooling chamber 22 is opened on the side of the mold body 1 near the heat cache chamber 21. A partition 23 is provided between the heat cache chamber 21 and the cooling chamber 22. The partition 23 is fixedly connected to the mold body 1. A heat conductive filler 24 is provided inside the heat cache chamber 21, and a cooling pipe 25 is provided on the side of the cooling chamber 22 near the partition 23. By opening the heat cache chamber 21 and filling the heat conductive filler 24 inside the heat cache chamber 21, when the temperature of the mold body 1 is too high, the heat will first be The heat is transferred to the inside of the heat buffer chamber 21, and the thermal conductive filler 24 will quickly absorb and conduct the heat inside the mold body 1, disperse and balance it inside the heat buffer chamber 21, and then inject coolant into the inside of the cooling pipe 25. When the coolant passes through the cooling pipe 25, it will take away the heat pre-absorbed inside the heat buffer chamber 21, and at the same time, it can also cool the mold body 1, solving the problem that the rapid cooling of the mold will cause a large temperature difference between the inner and outer layers of the mold, which may cause cracks on the mold surface, and reducing the temperature difference between the mold body 1 and the coolant, which is beneficial to increasing the service life of the mold body 1 while also improving the cooling efficiency.

[0038] Furthermore, Figure 2 - Figure 3 As shown, the cooling pipe 25 and the strip structure, the output end and the input end of the heat conductive filler 24 are fixedly connected by a connecting pipe 5. By using the strip cooling pipe 25, the contact area between the cooling pipe 25 and the partition 23 can be increased, thereby improving the cooling efficiency.

[0039] In order to further reduce the thermal stress on the mold and increase the service life of the mold, Figure 4 - Figure 5As shown, the water supply assembly 3 includes a water tank 31, a normal temperature chamber 35, and a cold water chamber 36. The water tank 31 is arranged on one side of the mold body 1, the normal temperature chamber 35 is opened inside the water tank 31, and the cold water chamber 36 is opened on the side of the water tank 31 near the normal temperature chamber 35. The side of the water tank 31 near the normal temperature chamber 35 and the cold water chamber 36 are fixedly connected with a water pump 32. A hose 33 is fixedly connected between the water pump 32 and the connecting pipe 5 near the input end of the cooling pipe 25. An end of the hose 33 near the water pump 32 is fixedly connected with a solenoid valve 37. By starting the water pump 32, the water pump 32 first presses the normal temperature chamber 35 into the water pump 32. The coolant with a higher temperature inside the warm chamber 35 is transported to the inside of the cooling pipe 25 through the hose 1 33 and the connecting pipe 5, so that the temperature of the mold body 1 gradually drops, achieving a smooth transition from high temperature to low temperature and reducing the generation of thermal stress. When the temperature of the mold body 1 gradually drops, the water pump 1 32 inputs the coolant with a lower temperature inside the cold water chamber 36 into the inside of the cooling pipe 25, so that the temperature difference gradually increases, thereby improving the cooling efficiency, which is beneficial to further improve the service life and cooling efficiency of the mold body 1. When the water pump 1 32 is working, the use of different coolants can be adjusted by controlling the switching state of the two solenoid valves 37.

[0040] Furthermore, Figure 4 As shown, a heat insulation board 34 is fixedly connected between the normal temperature chamber 35 and the cold water chamber 36. By installing the heat insulation board 34, the normal temperature chamber 35 and the cold water chamber 36 are separated, which can effectively prevent heat transfer between the two areas.

[0041] Furthermore, Figure 1 and Figure 4 As shown, the circulation component 4 includes a water pump 2 41 and a hose 2 42. The water pump 2 41 is fixedly connected to the water tank 31. The hose 2 42 is fixedly connected between the water pump 2 41 and the connecting pipe 5 near the output end of the cooling pipe 25. The output end of the water pump 2 41 is fixedly connected to a shunt pipe 43. The shunt pipe 43 is connected to the normal temperature chamber 35 and the cold water chamber 36. By starting the water pump 2 41, the coolant inside the cooling pipe 25 is transported along the connecting pipe 5 and the hose 2 42 to the inside of the shunt pipe 43, and the recovered coolant is sent to the inside of the normal temperature chamber 35 and the cold water chamber 36 through the shunt pipe 43, so as to complete the circulation of the coolant.

[0042] Furthermore, Figure 4As shown, a heat sink 44 is fixedly connected to the shunt pipe 43, a heat dissipation port 46 is provided on the side of the water tank 31 close to the normal temperature chamber 35, and a fan 45 is provided on the side of the water tank 31 close to the cold water chamber 36. By installing the heat sink 44 on the shunt pipe 43, the heat sink 44 cools the recovered coolant, which is convenient for the secondary utilization of the coolant. By installing the fan 45 on the side close to the cold water chamber 36, the cooling efficiency of the coolant inside the cold water chamber 36 is always higher than that of the coolant inside the normal temperature chamber 35, thereby ensuring that the temperature of the coolant in the cold water chamber 36 is always lower than that of the coolant in the normal temperature chamber 35.

[0043] Working principle: Figure 1 - Figure 5 As shown:

[0044] During use: When the temperature of the mold body 1 is too high, the heat will first be transferred to the inside of the heat buffer chamber 21, and the heat conductive filler 24 will quickly absorb and conduct the heat inside the mold body 1, and disperse and balance it inside the heat buffer chamber 21. Then, the water pump 1 32 is started, and the water pump 1 32 sends the coolant with a higher temperature inside the normal temperature chamber 35 into the interior of the cooling pipe 25 through the hose 1 33 and the connecting pipe 5. At this time, the solenoid valve 37 on one side of the normal temperature chamber 35 is opened, and the solenoid valve 37 on the other side is closed. When the coolant with a higher temperature enters the rear part of the cooling pipe 25, the cooling pipe 25 will take away the heat absorbed in advance inside the heat buffer chamber 21, and can also cool the mold body 1. Cooling is carried out to reduce the temperature difference between the mold body 1 and the coolant. Then, the solenoid valve 37 on the side close to the normal temperature chamber 35 is closed, and the solenoid valve 37 on the other side is opened, so that the coolant with a lower temperature inside the cold water chamber 36 enters the interior of the cooling pipe 25, so that the temperature difference is gradually increased, thereby improving the cooling efficiency, which is beneficial to improving the service life and cooling efficiency of the mold body 1. Start the water pump 2 41, and transport the coolant inside the cooling pipe 25 along the connecting pipe 5 and the hose 2 42 to the inside of the diversion pipe 43. The recovered coolant is then sent to the inside of the normal temperature chamber 35 and the cold water chamber 36 through the diversion pipe 43, and the fan 45 is started to cool the inside of the cold water chamber 36.

[0045] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A cooling mechanism for an automobile parts injection mold, comprising a mold body (1), characterized in that: A cooling component (2) is provided inside the mold body (1), a water supply component (3) is provided on one side of the mold body (1), and a circulation component (4) is provided between the water supply component (3) and the mold body (1); The cooling assembly (2) comprises a heat buffer chamber (21) and a cooling chamber (22), wherein the heat buffer chamber (21) is opened inside the mold body (1), and the cooling chamber (22) is opened inside the mold body (1) on a side close to the heat buffer chamber (21), a partition (23) is provided between the heat buffer chamber (21) and the cooling chamber (22), and the partition (23) is fixedly connected to the mold body (1), a heat conductive filler (24) is provided inside the heat buffer chamber (21), and a cooling pipe (25) is provided inside the cooling chamber (22) on a side close to the partition (23).

2. The cooling mechanism for an automobile parts injection mold according to claim 1, characterized in that: The cooling pipe (25) and the strip structure, as well as the output end and input end of the heat-conducting filler (24) are fixedly connected by a connecting pipe (5).

3. The cooling mechanism for an automobile parts injection mold according to claim 1, characterized in that: The water supply assembly (3) includes a water tank (31), a normal temperature chamber (35), and a cold water chamber (36). The water tank (31) is arranged on one side of the mold body (1). The normal temperature chamber (35) is opened inside the water tank (31). The cold water chamber (36) is opened on the side of the water tank (31) close to the normal temperature chamber (35). The sides of the water tank (31) close to the normal temperature chamber (35) and the cold water chamber (36) are fixedly connected to a water pump (32). A hose (33) is fixedly connected between the water pump (32) and the connecting pipe (5) close to the input end of the cooling pipe (25). An electromagnetic valve (37) is fixedly connected to one end of the hose (33) close to the water pump (32).

4. The cooling mechanism for an automobile parts injection mold according to claim 3, characterized in that: A heat insulation board (34) is fixedly connected between the normal temperature chamber (35) and the cold water chamber (36).

5. The cooling mechanism for an automobile parts injection mold according to claim 4, characterized in that: The circulation component (4) includes a second water pump (41) and a second hose (42). The second water pump (41) is fixedly connected to the water tank (31). The second water pump (41) is fixedly connected to the connecting pipe (5) near the output end of the cooling pipe (25) by a second hose (42). The output end of the second water pump (41) is fixedly connected to a shunt pipe (43). The shunt pipe (43) is connected to the normal temperature chamber (35) and the cold water chamber (36).

6. The cooling mechanism for an automobile parts injection mold according to claim 5, characterized in that: A heat sink (44) is fixedly connected to the diverter pipe (43), a heat dissipation port (46) is provided on the side of the water tank (31) close to the normal temperature chamber (35), and a fan (45) is provided on the side of the water tank (31) close to the cold water chamber (36).

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