A rapid cooling mold based on air conditioner box assembly production

Abstract

The application belongs to the technical field of injection molding equipment, and discloses a rapid cooling mold based on air conditioner box assembly production, which comprises an injection molding machine, a limiting cross rod installed on the injection molding machine, a hydraulic rod and a fixed mold, a movable mold is movably sleeved on the limiting cross rod, one end of the hydraulic rod is connected with the movable mold, and the movable mold is provided with a cooling module. The above scheme injects melt into the melt cavity after the mold is closed, so that the temperature of the mold body is increased, the heat is transferred to the nickel-titanium memory alloy sheet, the nickel-titanium memory alloy sheet returns to the state of arching upward in the middle, the top rod is pushed upward, the pressing valve assembly is in an open state, at this time, the liquid in the liquid storage tank flows into the flow channel to cool the mold body, the flow of the liquid is cut off, and then the mold can still have residual heat, so that the mold temperature difference between two adjacent injection molding processes is reduced, and the problem that the mold body is excessively cooled to seriously restrict the molding quality and yield of the injection molded part is avoided.

Description

Technical Field

[0001] This invention belongs to the field of injection molding equipment technology, specifically a rapid cooling mold based on the production of air conditioning unit assemblies. Background Technology

[0002] The air conditioning unit assembly is a key plastic component in automotive air conditioning and HVAC systems, primarily manufactured through injection molding. During injection molding, mold temperature is one of the core process parameters affecting the filling quality, cooling efficiency, molding cycle, and final dimensional accuracy of the product.

[0003] During injection molding, the mold undergoes three stages: filling, holding pressure, and cooling. Mold temperature is one of the core process parameters affecting the filling quality of the finished product. Currently, the industry standard for temperature control of injection molds during the molding process is to pre-embed cooling water channels inside the mold body and then continuously circulate the cooling medium through an external cooling water circulation system (including a circulating water pump and connecting pipes) during the injection molding process, thereby continuously cooling the mold.

[0004] While the above methods can accelerate the cooling and solidification of injection molded parts to some extent, continuous water cooling, with water flowing uninterruptedly through the cooling channels during mold closing and injection, can easily lead to over-cooling of the mold. When the mold cavity wall temperature is too low, the high-temperature melt injected into the cavity will cool down rapidly upon contact with the wall, and the surface layer will quickly solidify to form a frozen layer. This reduces the effective cavity flow cross-sectional area, significantly increasing melt flow resistance and easily causing filling defects such as short shots, cold slug marks, insufficient weld line strength, and surface flow marks, severely restricting the molding quality and yield of injection molded parts.

[0005] Therefore, based on the above problems, a rapid cooling mold based on the production of air conditioning unit assembly is proposed. Summary of the Invention

[0006] To address the problems mentioned in the background section, this invention provides a rapid cooling mold for the production of air conditioning unit assemblies, which solves the problem that the existing injection molds, using continuous water cooling, cause excessive cooling of the mold, severely restricting the molding quality and yield of injection molded parts.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a rapid cooling mold based on the production of an air conditioning unit assembly, comprising an injection molding machine and a limiting crossbar, a hydraulic rod and a fixed mold mounted thereon, a movable mold being movably sleeved on the limiting crossbar, one end of the hydraulic rod being connected to the movable mold, and further comprising: a cooling module being mounted on the movable mold; The moving mold includes a mold body movably sleeved on a limiting crossbar, and a plurality of flow channels are equidistantly opened on the mold body; the cooling module includes a pressing valve assembly installed on the mold body, the input end and output end of the pressing valve assembly are respectively fixedly connected to a guide pipe and a diversion pipe for connecting the plurality of flow channels and the output end of the pressing valve assembly; a nickel-titanium shape memory alloy sheet and a push rod that can slide vertically within the mold body are installed in the cavity of the mold body, and the top of the push rod extends to the top of the mold body and can connect with the pressing valve assembly; in the initial state, the nickel-titanium shape memory alloy sheet is plate-shaped and will return to an arched state when heated, and can apply pressure to the pressing valve assembly and open it.

[0008] Preferably, the pressing valve assembly includes a valve body fixedly installed on the top of the injection molding machine, a spring valve core that is movably installed in the valve body and initially has a downward trend due to its own elastic force, a valve core cavity is opened on the valve body, and a constant pressure pipe for connecting the outside and the cavity below the spring valve core is opened on the spring valve core; After the spring valve core moves upward, the input end of the valve body can be connected to the output end of the valve body through the valve core cavity; the top of the spring valve core can be connected to the top end of the push rod through the connecting plate.

[0009] Preferably, the bottom end of the push rod is fixedly fitted with a pressure plate that contacts the upper surface of the nickel-titanium shape memory alloy sheet.

[0010] Preferably, a liquid collection pipe for communicating with the bottom of several flow channels is fixedly installed at the bottom of the mold body, and the output end of the liquid collection pipe faces downward.

[0011] Preferably, fins are fixedly installed in the mold body containing the nickel-titanium shape memory alloy sheet.

[0012] Preferably, the moving mold further includes a mold frame movably sleeved on the limiting crossbar, and a plurality of spring limiting rods are fixedly installed on the mold body. One end of the spring limiting rod is fixedly connected to the mold frame to support the mold body and the mold frame to maintain a separation tendency. One side of the mold frame is connected to the output end of the hydraulic rod. A liquid storage tank is fixedly installed on the upper part of the injection molding machine, and one end of the guide pipe passes through the mold frame and is fixedly connected to the bottom of the liquid storage tank.

[0013] Preferably, the mold body has two sets of pressure chambers; a second diversion pipe is installed on the top of the mold body, both ends of the second diversion pipe are input ends and are respectively connected to the two sets of pressure chambers, and a number of output ends for connecting to the top of the flow channel are provided in the middle of the second diversion pipe. Two sets of energy storage components are symmetrically installed between the mold body and the mold frame. These components are used to inflate the pressure chambers when the mold body is closed and to connect the pressure chambers and the distribution pipes after the mold body is opened.

[0014] Preferably, the power storage assembly includes a spring piston telescopic rod installed between the mold body and the mold frame. The sleeve portion of the spring piston telescopic rod is provided with a one-way valve one that conducts inward and a one-way valve two that conducts outward. A tension spring core rod is movably sleeved on the mold frame. One end of the tension spring core rod is movably installed on the mold body, and the tension spring core rod can be subjected to the tension of its own tension spring portion to have a tendency to block the top of the pressure chamber and the input end of the diverter pipe two from conducting. In the initial state, the mold frame will drive the end of the tension spring core rod to release the blockage of the pressure chamber and the second diversion pipe at its other end; the cavity of the spring piston telescopic rod sleeve part can be connected to the pressure chamber through the second one-way valve.

[0015] Preferably, the mold body has a constant pressure hole with a diameter smaller than that of the second diverter tube and which can communicate with the outside. The constant pressure hole is coaxial with the tension spring core rod.

[0016] Preferably, the output end of the second diverter is equipped with a one-way valve that can conduct one-way to the flow channel, and the height of the output end of the second diverter is higher than that of the push valve assembly.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: The above solution involves injecting molten material into the molten cavity after mold closing, raising the temperature of the mold body and transferring the heat to the nickel-titanium shape memory alloy sheet, causing it to return to its upward-arched state in the middle. This pushes the ejector rod upward, opening the pressure valve assembly. At this time, the liquid in the reservoir flows into the flow channel to cool the mold body. The mold is in a pressure-holding state, and the molten material gradually cools and solidifies in the mold. After the mold temperature drops, the nickel-titanium shape memory alloy sheet is shaped into its initial sheet state by the pressure transmitted by the pressure valve assembly through the ejector rod. The flow of liquid is cut off, allowing the mold to retain residual heat, thereby reducing the temperature difference between adjacent injection molding cycles and preventing the mold body from being over-cooled, which could severely restrict the molding quality and yield of the injection molded parts. In the above scheme, during mold closing, the hydraulic rod pushes the mold body to move through the mold frame and spring limiting rod, compressing the spring portion on the spring limiting rod. The tension spring core rod is also pulled by its own spring portion, blocking the connection between the pressure chamber and the second diversion pipe. At the same time, the spring piston telescopic rod is also compressed, and the gas inside it is input into the pressure chamber through the second one-way valve, increasing the internal pressure. After mold opening, the first one-way valve will drive the tension spring core rod to reset and connect the second diversion pipe and the pressure chamber. At this time, the pressurized gas in the pressure chamber will be pumped into the flow channel through the second diversion pipe to drain the residual liquid in the flow channel, so as to avoid the residual liquid causing the temperature of the mold body to drop below the set value, ensuring that the mold is always maintained within a suitable working temperature range during continuous production. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the mold structure of the present invention; Figure 3 This is a side plan perspective view of the mold of the present invention; Figure 4 This is a schematic diagram of the cooling module of the present invention; Figure 5 This is a front cross-sectional view of the mold of the present invention; Figure 6 for Figure 5 Enlarged view of point A in the middle; Figure 7 for Figure 5 Enlarged view of point B in the middle; Figure 8 This is a schematic diagram of the structure of the second diversion tube of the present invention; Figure 9 This is a cross-sectional view of the spring piston telescopic rod of the present invention; Figure 10 for Figure 9 A magnified view of point C in the middle.

[0019] In the diagram: 1. Injection molding machine; 11. Limiting crossbar; 12. Hydraulic rod; 2. Fixed mold; 3. Moving mold; 31. Mold body; 311. Runner; 312. Liquid collection pipe; 313. Fin; 314. Pressure chamber; 315. Constant pressure hole; 32. Mold frame; 33. Spring limiting rod; 4. Cooling module; 41. Guide pipe; 42. Press valve assembly; 421. Valve body; 422. Spring valve core; 423. Valve core cavity; 424. Constant pressure pipe; 43. Diverter pipe one; 44. Nickel-titanium shape memory alloy sheet; 45. Ejector rod; 451. Pressure plate; 5. Power storage assembly; 51. Spring piston telescopic rod; 52. One-way valve one; 53. One-way valve two; 54. Tension spring core rod; 6. Diverter pipe two; 61. One-way valve disc; 7. Liquid storage tank. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figures 1 to 10 As shown, the present invention provides a rapid cooling mold based on the production of an air conditioning unit assembly, including an injection molding machine 1 and a limiting crossbar 11, a hydraulic rod 12 and a fixed mold 2 installed thereon. A moving mold 3 is movably sleeved on the limiting crossbar 11. One end of the hydraulic rod 12 is connected to the moving mold 3. The invention also includes a cooling module 4 installed on the moving mold 3. The moving mold 3 includes a mold body 31 that is movably sleeved on the limiting crossbar 11, and a plurality of flow channels 311 are equally spaced on the mold body 31; The cooling module 4 includes a press valve assembly 42 mounted on the mold body 31. The input and output ends of the press valve assembly 42 are respectively fixedly connected to a guide pipe 41 and a diversion pipe 43 for connecting several flow channels 311 and the output end of the press valve assembly 42. A nickel-titanium shape memory alloy sheet 44 and a push rod 45 that can slide vertically within the mold body 31 are installed in the cavity of the mold body 31. The top of the push rod 45 extends to the top of the mold body 31 and can be connected to the press valve assembly 42. In the initial state, the nickel-titanium shape memory alloy sheet 44 is plate-shaped and will return to an arched state when heated, and can apply pressure to the press valve assembly 42 and open it. Using the above scheme, after mold closing, molten material is injected into the melting cavity to raise the temperature of the mold body 31, transferring heat to the nickel-titanium shape memory alloy sheet 44, causing it to return to its upward arched state in the middle. This pushes the ejector rod 45 upward, opening the pressure valve assembly 42. At this time, the liquid in the storage tank 7 flows into the flow channel 311 through the guide pipe 41, the pressure valve assembly 42, and the branch pipe 43 to cool the mold body 31. The mold is in a pressure-holding state, and the molten material gradually cools and solidifies in the mold. After the mold temperature decreases, the nickel-titanium shape memory alloy sheet 44 is shaped into its initial shape by the pressure transmitted by the pressure valve assembly 42 through the ejector rod 45. The sheet-like state cuts off the flow of liquid, allowing the mold to retain residual heat. This reduces the temperature difference between adjacent injections, preventing the mold body 31 from being overcooled and causing the melt layer on the contact wall to freeze rapidly, severely restricting the molding quality and yield of the injection molded parts. This effectively reduces the high flow resistance of the melt and filling defects such as short shots. Furthermore, it ensures that the trigger temperature of the nickel-titanium shape memory alloy sheet 44 is more consistent with each heat deformation, and the timing of the coolant flow is more stable and controllable, thus ensuring the consistency of cooling effect and molding quality of each product in continuous production. Furthermore, a pressure plate 451 is fixedly sleeved at the bottom of the ejector rod 45, which contacts the upper surface of the nickel-titanium memory alloy sheet 44, to ensure that the downward movement of the ejector rod 45 can completely flatten the nickel-titanium memory alloy sheet 44; a liquid collection pipe 312 for communicating with the bottom of several flow channels 311 is fixedly installed at the bottom of the mold body 31, and the output end of the liquid collection pipe 312 faces downward so that the device can discharge and collect cooling water; by fixing fins 313 in the mold body 31 where the nickel-titanium memory alloy sheet 44 is located, the temperature in the cavity of the mold body 31 where the nickel-titanium memory alloy sheet 44 is located can change more sensitively with the temperature of the mold cavity; It should be noted that the nickel-titanium shape memory alloy sheet 44 has an asymmetric mechanical property where the recovery stress is much greater than the stress required for strain. Typically, there is a force difference of 3 to 10 times between the two. Therefore, based on this property, it can be ensured that when the mold temperature decreases, the pressing valve assembly 42 can restore the nickel-titanium shape memory alloy sheet 44 to its initial sheet-like state.

[0022] like Figures 4-6 As shown, the press valve assembly 42 includes a valve body 421 fixedly installed on the top of the injection molding machine 1. A spring valve core 422 is movably installed in the valve body 421, which has a downward trend initially due to its own elastic force. A valve core cavity 423 is opened on the valve body 421, and a constant pressure pipe 424 for connecting the outside world and the cavity below the spring valve core 422 is opened on the spring valve core 422. After the spring valve core 422 moves upward, the input end of the valve body 421 can be connected to the output end of the valve body 421 through the valve core cavity 423; the top of the spring valve core 422 can be connected to the top end of the push rod 45 through the connecting plate. Using the above scheme, the deformation energy of the nickel-titanium shape memory alloy sheet 44 can drive the spring valve core 422 upward through the push rod 45 and the connecting rod installed on it, so that the input and output ends of the valve body 421 are connected through the valve core cavity 423; It should be noted that the restoring force of the nickel-titanium shape memory alloy sheet 44 is greater than the sum of the gravity between the push rod 45, the spring valve core 422 and the connecting plate, and the force of the spring part on the spring valve core 422. At the same time, the stress required for the strain of the nickel-titanium shape memory alloy sheet 44 is less than the sum of the above forces.

[0023] like Figure 2 , Figure 3 and Figures 7-10 As shown, the moving mold 3 also includes a mold frame 32 movably sleeved on the limiting crossbar 11. Several spring limiting rods 33 are fixedly installed on the mold body 31. One end of the spring limiting rod 33 is fixedly connected to the mold frame 32 to support the mold body 31 and the mold frame 32 to maintain a separation tendency. One side of the mold frame 32 is connected to the output end of the hydraulic rod 12. A liquid storage tank 7 is fixedly installed on the upper part of the injection molding machine 1, and one end of the guide pipe 41 passes through the mold frame 32 and is fixedly connected to the bottom of the liquid storage tank 7. Two pressure chambers 314 are provided on the mold body 31; a flow divider pipe 6 is installed on the top of the mold body 31, with both ends of the flow divider pipe 6 being input ends that are respectively connected to the two pressure chambers 314; and several output ends for connecting to the top of the flow channel 311 are provided in the middle of the flow divider pipe 6; two sets of energy storage components 5 are symmetrically installed between the mold body 31 and the mold frame 32, which are used to inflate the pressure chambers 314 when the mold body 31 is closed and can connect the pressure chambers 314 and the flow divider pipe 6 after the mold body 31 is opened. The power storage assembly 5 includes a spring piston telescopic rod 51 installed between the mold body 31 and the mold frame 32. The sleeve portion of the spring piston telescopic rod 51 is provided with a one-way valve 52 that conducts inward and a one-way valve 53 that conducts outward. A tension spring core rod 54 is movably sleeved on the mold frame 32. One end of the tension spring core rod 54 is movably installed on the mold body 31, and the tension spring core rod 54 has the tendency to block the top of the pressure chamber 314 and the input end of the diverter pipe 6 under the tension of its own tension spring portion. In the initial state, the mold frame 32 will drive the end of the tension spring core rod 54 to release the other end from blocking the pressure chamber 314 and the diverter pipe 6. The cavity of the sleeve portion of the spring piston telescopic rod 51 can be connected to the pressure chamber 314 through the one-way valve 53. Using the above scheme, during the mold closing process, the hydraulic rod 12 pushes the mold body 31 to move through the mold frame 32 and the spring limiting rod 33, causing the spring portion on the spring limiting rod 33 to be compressed. The tension spring core rod 54 is also pulled by its own spring portion, blocking the connection between the pressure chamber 314 and the second diversion pipe 6. At the same time, the spring piston telescopic rod 51 is also compressed, and the gas inside it is unidirectionally input into the pressure chamber 314 through the second check valve 53, increasing the internal pressure. After the mold opens, the first check valve 52 will drive the tension spring core rod 54 to reset and connect the second diversion pipe 6 and the pressure chamber 314. At this time, the pressurized gas in the pressure chamber 314 will be pumped into the flow channel 311 through the second diversion pipe 6 to drain the residual liquid in the flow channel 311, so as to avoid the residual liquid causing the temperature of the mold body 31 to drop below the set value, ensuring that the mold is always maintained within a suitable working temperature range during continuous production. During the reset, the external gas will be replenished to the spring piston telescopic rod 51 through the first check valve 52.

[0024] like Figure 10 As shown, the mold body 31 has a constant pressure hole 315 with a diameter smaller than that of the second diverter tube 6 and which can communicate with the outside. The constant pressure hole 315 is coaxial with the tension spring core rod 54. By adopting the above scheme, the setting of constant pressure hole 315 can ensure that tension spring core rod 54 can completely block the connection between diversion pipe 2 6 and pressure chamber 314. At the same time, when diversion pipe 2 6 is connected to pressure chamber 314, the amount of gas discharged from pressure chamber 314 through constant pressure hole 315 can be reduced.

[0025] like Figure 7 As shown, the output end of the second diversion pipe 6 is equipped with a one-way valve disc 61 that can be opened in one direction to the flow channel 311, and the height of the output end of the second diversion pipe 6 is higher than that of the push valve assembly 42. By adopting the above scheme, the one-way valve 61 can prevent the liquid entering the flow channel 311 from flowing into the second branch pipe 6.

[0026] Working principle and usage process of this invention: After the mold is closed, the molten metal is injected between the limiting crossbar 11 and the mold body 31 through the limiting crossbar 11. At this time, the temperature of the mold body 31 will rise and transfer heat to the nickel-titanium shape memory alloy sheet 44. The nickel-titanium shape memory alloy sheet 44 will return to its initial state, and its middle part will arch upward and push the ejector rod 45 upward, so that the pressing valve assembly 42 is in the open state. At this time, the liquid in the storage tank 7 will flow into the flow channel 311 through the guide pipe 41, the pressing valve assembly 42 and the diversion pipe 43 to cool the mold body 31. At this time, the mold is in the pressure holding state, and the molten metal will gradually cool and solidify in the mold. After the mold temperature drops, the nickel-titanium shape memory alloy sheet 44 will be shaped into the initial sheet state by the pressure transmitted by the pressing valve assembly 42 through the ejector rod 45. The flow of liquid is cut off, so that the mold can still retain residual heat to reduce the mold temperature difference between adjacent injections. During mold closing, the hydraulic rod 12 pushes the mold body 31 to move through the mold frame 32 and the spring limiting rod 33. After the mold body 31 closes, the spring part on the spring limiting rod 33 is compressed, and the tension spring core rod 54 is also pulled by its own spring part to block the connection between the pressure chamber 314 and the second diversion pipe 6. At the same time, the spring piston telescopic rod 51 is also compressed, and the gas inside it is input into the pressure chamber 314 through the second check valve 53, and the pressure in the pressure chamber 314 will increase. After the mold opens, the first check valve 52 will drive the tension spring core rod 54 to reset and make the second diversion pipe 6 and the pressure chamber 314 connected. At this time, the pressurized gas in the pressure chamber 314 will be pumped into the flow channel 311 through the second diversion pipe 6 to drain the residual liquid in the flow channel 311, so as to avoid the residual liquid causing the temperature of the mold body 31 to drop below the set value, and to ensure that the mold is always maintained within a suitable working temperature range during continuous production.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid cooling mold based on the production of an air conditioning unit assembly, comprising an injection molding machine (1) and a limiting crossbar (11), a hydraulic rod (12), and a fixed mold (2) mounted thereon, wherein a moving mold (3) is movably sleeved on the limiting crossbar (11), and one end of the hydraulic rod (12) is connected to the moving mold (3), characterized in that, Also includes: A cooling module (4) is installed on the moving mold (3); The moving mold (3) includes a mold body (31) that is movably sleeved on the limiting crossbar (11), and the mold body (31) has several flow channels (311) equidistantly opened on it. The cooling module (4) includes a press valve assembly (42) installed on the mold body (31). The input end and output end of the press valve assembly (42) are respectively fixedly connected to a guide pipe (41) and a diversion pipe (43) for connecting several flow channels (311) and the output end of the press valve assembly (42). A nickel-titanium memory alloy sheet (44) and a push rod (45) that can slide vertically in the mold body (31) are installed in the cavity of the mold body (31). The top of the push rod (45) extends to the top of the mold body (31) and can be connected to the press valve assembly (42). In its initial state, the nickel-titanium shape memory alloy sheet (44) is plate-shaped and will return to an arched state when heated, and can apply pressure to the push valve assembly (42) and open it.

2. The rapid cooling mold based on the production of air conditioning unit assembly according to claim 1, characterized in that: The press valve assembly (42) includes a valve body (421) fixedly installed on the top of the injection molding machine (1). A spring valve core (422) that has a downward trend initially due to its own elastic force is movably installed in the valve body (421). A valve core cavity (423) is opened on the valve body (421). A constant pressure pipe (424) for connecting the outside world and the cavity below the spring valve core (422) is opened on the spring valve core (422). After the spring valve core (422) moves upward, the input end of the valve body (421) can be connected to the output end of the valve body (421) through the valve core cavity (423); The top of the spring valve core (422) can be connected to the top of the top rod (45) via a connecting plate.

3. The rapid cooling mold based on the production of air conditioning unit assembly according to claim 1, characterized in that: The bottom end of the top rod (45) is fixedly fitted with a pressure plate (451) that contacts the upper surface of the nickel-titanium memory alloy sheet (44).

4. The rapid cooling mold based on the production of air conditioning unit assembly according to claim 1, characterized in that: The bottom of the mold body (31) is fixedly installed with a liquid collection pipe (312) for communicating with the bottom of several flow channels (311), and the output end of the liquid collection pipe (312) faces downward.

5. The rapid cooling mold based on the production of an air conditioning unit assembly according to claim 1, characterized in that: The nickel-titanium shape memory alloy sheet (44) is fixedly installed in the mold body (31) with fins (313).

6. The rapid cooling mold based on the production of air conditioning unit assembly according to claim 1, characterized in that: The moving mold (3) also includes a mold frame (32) movably sleeved on the limiting crossbar (11). Several spring limiting rods (33) are fixedly installed on the mold body (31). One end of the spring limiting rod (33) is fixedly connected to the mold frame (32) and is used to support the mold body (31) and the mold frame (32) to maintain a separation tendency. One side of the mold frame (32) is connected to the output end of the hydraulic rod (12). A liquid storage tank (7) is fixedly installed on the upper part of the injection molding machine (1), and one end of the guide pipe (41) passes through the mold frame (32) and is fixedly connected to the bottom of the liquid storage tank (7).

7. The rapid cooling mold based on the production of air conditioning unit assembly according to claim 6, characterized in that: Two pressure chambers (314) are provided on the mold body (31); The top of the mold body (31) is equipped with a second flow divider (6). Both ends of the second flow divider (6) are input ends that are connected to two sets of pressure chambers (314) respectively. The middle part of the second flow divider (6) is provided with several output ends for connecting to the top of the flow channel (311). Two sets of energy storage components (5) are installed symmetrically between the mold body (31) and the mold frame (32) for the mold body (31) to fill the pressure chamber (314) with air when the mold is closed, and to connect the pressure chamber (314) and the second diversion pipe (6) after the mold body (31) is opened.

8. The rapid cooling mold based on the production of an air conditioning unit assembly according to claim 7, characterized in that: The power storage component (5) includes a spring piston telescopic rod (51) installed between the mold body (31) and the mold frame (32). The sleeve portion of the spring piston telescopic rod (51) is provided with a one-way valve one (52) that conducts inward and a one-way valve two (53) that conducts outward. The mold frame (32) is movably sleeved with a tension spring core rod (54). One end of the tension spring core rod (54) is movably installed on the mold body (31), and the tension spring core rod (54) can be subjected to the tension of its own tension spring portion to have a tendency to block the top of the pressure chamber (314) and the input end of the diversion pipe two (6). In the initial state, the mold frame (32) will drive the end of the tension spring core rod (54) to release the other end from the blockage of the pressure chamber (314) and the second diversion pipe (6); The cavity of the sleeve portion of the spring piston telescopic rod (51) can be connected to the pressure chamber (314) through the one-way valve (53).

9. The rapid cooling mold based on the production of an air conditioning unit assembly according to claim 8, characterized in that: The mold body (31) has a constant pressure hole (315) with a diameter smaller than that of the second diverter pipe (6) and which can communicate with the outside. The constant pressure hole (315) is coaxial with the tension spring core rod (54).

10. The rapid cooling mold based on the production of an air conditioning unit assembly according to claim 7, characterized in that: The output end of each of the two diversion pipes (6) is equipped with a one-way valve disc (61) that can be opened in one direction to the flow channel (311). The height of the output end of the two diversion pipes (6) is higher than that of the push valve assembly (42).

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