Metal casting mold

Abstract

The present invention relates to the technical field of casting molds, and specifically to a metal casting mold, comprising a frame, a fixed mold, a movable mold and a temperature regulating component, wherein the fixed mold is arranged on the frame, the movable mold is slidably arranged on the frame, and a mold cavity is provided on the opposite surfaces of the movable mold and the fixed mold, and when the movable mold slides to be connected with the fixed mold. The present invention is provided with a temperature regulating component, and since the temperature regulating component is configured such that its heat exchange efficiency is negatively correlated with the cross-sectional area perpendicular to the length direction of the mold cavity, the larger the cross-sectional area in the length direction of the mold cavity, the higher the heat exchange efficiency of the temperature regulating component here, and the smaller the cross-sectional area in the length direction of the mold cavity, the lower the heat exchange efficiency of the temperature regulating component here, so that the cooling rate of the casting at various locations along its length direction can be balanced, so that the temperature change rate at different cross-sectional areas of the casting is basically consistent.

Description

Technical Field

[0001] The invention relates to the technical field of casting moulds, in particular to a metal casting mould. Background Art

[0002] Metal casting molds are key tools used in the metal casting process, which determine the shape, size and surface quality of the casting. The casting mold pours or presses the molten metal into the mold cavity, and the required parts or products are formed after the metal cools and solidifies. The casting mold includes a movable mold and a fixed mold. The fixed mold is generally fixed on the frame, and the movable mold can be moved to open or close the mold. The movable mold is usually connected to the injection system, which is responsible for injecting the molten metal into the cavity.

[0003] After the molten metal fills the mold cavity, the casting material needs to be kept cool. In order to cool the casting material inside the mold cavity, in the prior art, a cooling channel close to the casting cavity is usually opened on the mold. At this time, the cooling medium flows along the cooling channel to take away the heat in the casting material in the form of heat transfer. However, due to the different cross-sectional thicknesses of the casting, the temperature of the small cross-sectional thickness part and the large cross-sectional thickness part of the casting will be different, which will have an adverse effect on the microstructure, mechanical properties, wear resistance and creep properties of the casting. Summary of the invention

[0004] Based on this, it is necessary to provide a metal casting mold to solve the problem of different temperatures at different cross-sectional thickness positions of the casting during cooling, in view of the problems existing in the current metal casting mold.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A metal casting mold comprises:

[0007] frame;

[0008] Fixed mold, the fixed mold is arranged on the frame;

[0009] The movable mold is slidably arranged on the frame, and a mold cavity is opened on the opposite surfaces of the movable mold and the fixed mold. When the movable mold slides to connect with the fixed mold, the mold cavity completes the mold closing, and when the movable mold slides to disconnect from the fixed mold, the mold cavity completes the mold opening;

[0010] A temperature regulating component, wherein there are multiple temperature regulating components, and the multiple temperature regulating components are arranged at intervals along the length direction of the mold cavity, and the temperature regulating components are inserted inside the fixed mold and the movable mold, and the temperature regulating components inserted inside the fixed mold and the temperature regulating components inserted inside the movable mold correspond one to one in the horizontal direction, and the temperature regulating components automatically adjust their heat exchange efficiency to achieve temperature regulation of the fixed mold and the movable mold, and the temperature regulating components are configured so that their heat exchange efficiency is negatively correlated with the cross-sectional area perpendicular to the length direction of the mold cavity.

[0011] In one of the embodiments, the temperature regulating component includes a heat-conducting plunger, a flow regulating unit, a driving unit and a substrate. The heat-conducting plunger passes through the substrate and is inserted into the fixed mold and the movable mold. A circulation circuit for a heat exchange medium is opened in the heat-conducting plunger. There are two flow regulating units. The two flow regulating units are arranged at intervals outside the heat-conducting plunger and the two flow regulating units are respectively connected to the input end and the output end of the circulation circuit. The ends of the two flow regulating units away from the circulation circuit are arranged on the substrate. The substrate is respectively provided with a first flow input port and a first flow output port. The ends of the two flow regulating units away from the circulation circuit are respectively connected to the first flow input port and the first flow output port. The driving unit is used to drive the flow regulating units to operate so as to adjust the flow of the heat exchange medium in the circulation circuit.

[0012] In one embodiment, the flow regulating unit comprises a first hinge sleeve rod, a second hinge sleeve rod, a first hinge column, a second hinge column, a first hinge seat and a first half ring block, the first hinge seat is arranged at an outer end of the heat-conducting plunger, the first hinge column is hinged to the first hinge seat, the first hinge column is arranged at one end of the first hinge sleeve rod, the other end of the first hinge sleeve rod is slidably sleeved with the second hinge sleeve rod, the end of the second hinge sleeve rod away from the first hinge sleeve rod is fixedly connected to the second hinge column, the second hinge column is hinged on the base plate, the first half ring block is concentrically nested with the first hinge column and the first half ring block is arranged on the base plate;

[0013] A first flow hole is provided on the inner arc surface of the first half ring block corresponding to the flow regulating unit connected to the input end of the circulation circuit, one end of the first flow hole is connected to the first flow input port, a first flow channel is provided in the corresponding second hinged sleeve rod, one end of the first flow channel can be connected to the first flow hole, a first connecting hose is inserted at the other end of the first flow channel, the first connecting hose is installed in the corresponding first hinged sleeve rod, and one end of the first connecting hose away from the first flow channel is inserted at the input end of the circulation circuit;

[0014] The driving unit is used to drive the corresponding second hinged column to rotate relative to the first half ring block to change the overlapping area of ​​the first flow hole and the first flow channel, thereby adjusting the input flow rate of the heat exchange medium;

[0015] A second flow hole is provided on the inner arc surface of the first half ring block corresponding to the flow regulating unit connected to the input end of the circulation circuit, one end of the second flow hole is connected to the first flow output port, a second flow channel is provided in the corresponding second hinged sleeve rod, one end of the second flow channel can be connected to the second flow hole, a second connecting hose is inserted at the other end of the second flow channel, the second connecting hose is installed in the corresponding first hinged sleeve rod, and one end of the second connecting hose away from the second flow channel is inserted at the output end of the circulation circuit;

[0016] The driving unit is used to drive the corresponding second hinged column to rotate relative to the first half ring block to change the overlapping area of ​​the second flow hole and the second flow channel, thereby adjusting the output flow of the heat exchange medium.

[0017] In one embodiment, a second flow input port is provided on the substrate, the second flow input port and the first flow input port are not connected to each other, and the temperature of the heat exchange medium in the second flow input port and the first flow input port is different;

[0018] A third flow hole is also provided on the inner arc surface of the first half ring block corresponding to the flow regulating unit connected to the input end of the flow loop, the third flow hole is connected to the second flow input port, and the third flow hole is not connected to the first flow hole;

[0019] The driving unit is also used to drive the corresponding second hinged column to rotate relative to the first half ring block, so that one end of the first flow channel can be selectively connected to the first flow hole or the third flow hole.

[0020] In one embodiment, a second flow output port is provided on the substrate, and the second flow output port and the first flow output port are not connected to each other;

[0021] A fourth flow hole is also provided on the inner arc surface of the first half ring block corresponding to the flow regulating unit connected to the output end of the flow loop, the fourth flow hole is connected to the second flow output port, and the fourth flow hole is not connected to the second flow hole;

[0022] The driving unit is also used to drive the corresponding second hinge column to rotate relative to the first half ring block, so that one end of the second flow channel can be connected to either the second flow hole or the fourth flow hole.

[0023] In one embodiment, both ends of the first connecting hose and the second connecting hose are provided with a corrugated retractable structure.

[0024] In one embodiment, the side surfaces of the fixed mold and the movable mold are each provided with a plurality of insertion holes, the plurality of insertion holes are arranged at intervals along the length direction of the mold cavity, the insertion holes extend toward the inside of the fixed mold and the movable mold, and the spacing between the bottoms of the plurality of insertion holes and the mold cavity is the same;

[0025] A heat-conducting sleeve is sleeved in the insertion hole, the heat-conducting sleeve is in contact with the bottom of the insertion hole, and the heat-conducting plunger is slidably inserted in the heat-conducting sleeve.

[0026] In one embodiment, the driving unit includes a magnet, a first elastic member, a second elastic member, a hydraulic mechanism and a pressing plate, the hydraulic mechanism is arranged on a frame, the output end of the hydraulic mechanism is fixedly connected to the pressing plate, the material storage unit is fixedly connected to the movable mold, the pressing plate and the base plate are elastically connected by the first elastic member, the base plate and the heat-conducting plunger are elastically connected by the second elastic member, the magnet is arranged on an end surface of the heat-conducting plunger away from the second elastic member, and the magnetism of the opposite surfaces of the two magnets at the same horizontal height in the fixed mold and the movable mold is the same;

[0027] The first elastic member is configured so that when the pressing plate and the base plate are close to each other, the first elastic member is compressed;

[0028] The second elastic member is configured so that when the plug body and the substrate of the heat-conducting plunger are close to each other, the second elastic member is compressed.

[0029] In one of the embodiments, guide columns are provided between the pressing plate and the fixed mold and between the pressing plate and the movable mold, and the axes of the guide columns are parallel to the axes of the heat-conducting plungers.

[0030] In one of the embodiments, a guide through hole is opened on the side of the substrate, and the guide post passes through the guide through hole.

[0031] The beneficial effects of the present invention are:

[0032] The present invention is provided with a temperature regulating component. Since the temperature regulating component is configured so that its heat exchange efficiency is negatively correlated with the cross-sectional area perpendicular to the length direction of the mold cavity, the larger the cross-sectional area in the length direction of the mold cavity, the higher the heat exchange efficiency of the temperature regulating component here, and the smaller the cross-sectional area in the length direction of the mold cavity, the lower the heat exchange efficiency of the temperature regulating component here. In this way, the cooling rates of the casting at various locations along its length direction can be balanced, so that the temperature change rates at different cross-sectional areas of the casting are basically consistent, thereby ensuring that the microstructure, mechanical properties, wear resistance and creep properties of the casting will not be affected due to excessive differences in cooling rates at various locations in the length direction of the casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is an overall schematic diagram of a metal casting mold of the present invention;

[0034] Figure 2 An exploded view of a metal casting mold of the present invention;

[0035] Figure 3 It is a structural schematic diagram of a temperature regulating component in a metal casting mold of the present invention;

[0036] Figure 4 A top view of a metal casting mold of the present invention;

[0037] Figure 5 for Figure 4 Middle AA section view;

[0038] Figure 6 for Figure 5 Schematic diagram of the enlarged structure at B in the middle;

[0039] Figure 7 for Figure 6 Schematic diagram of the enlarged structure at C in the middle;

[0040] Figure 8 for Figure 6 Schematic diagram of the enlarged structure at D in the middle;

[0041] Fig. 9 for Figure 6 Schematic diagram of the enlarged structure at E in the middle;

[0042] Fig.10 for Figure 6 Schematic diagram of the enlarged structure at F in the middle;

[0043] Fig.11 It is a structural schematic diagram of a substrate in a metal casting mold of the present invention;

[0044] Fig.12 It is a structural schematic diagram of a first flow input port in a metal casting mold of the present invention;

[0045] Fig.13 It is a schematic diagram of another embodiment of a first flow channel inlet in a metal casting mold of the present invention.

[0046] in:

[0047] 100, rack;

[0048] 210, fixed mold; 220, movable mold; 230, mold cavity; 240, insertion hole; 250, heat-conducting sleeve; 260, guide column;

[0049] 300, temperature adjustment component; 310, heat-conducting plunger; 311, circulation loop; 320, flow adjustment unit; 330, driving unit; 340, substrate; 341, first flow input port; 342, first flow output port; 343, second flow input port; 344, second flow output port; 345, guide through hole;

[0050] 321, first articulated sleeve rod; 3211, first connecting hose; 3212, second connecting hose; 322, second articulated sleeve rod; 3221, first flow channel; 3222, second flow channel; 323, first articulated column; 324, second articulated column; 325, first articulated seat; 326, first half ring block; 3261, first flow hole; 3262, second flow hole; 3263, third flow hole; 3264, fourth flow hole;

[0051] 331. Magnet; 332. First elastic member; 333. Second elastic member; 334. Hydraulic mechanism; 335. Pressing plate. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0053] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0054] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0055] like Figure 1-Figure 13As shown, a metal casting mold includes a frame 100, a fixed mold 210, a movable mold 220 and a temperature regulating assembly 300, wherein the fixed mold 210 is arranged on the frame 100, the movable mold 220 is slidably arranged on the frame 100, and a mold cavity 230 is opened on the opposite surface of the movable mold 220 and the fixed mold 210. When the movable mold 220 slides to connect with the fixed mold 210, the mold cavity 230 completes mold closing, and when the movable mold 220 slides to disconnect from the fixed mold 210, the mold cavity 230 completes mold opening, and the temperature regulating assembly 300 has multiple temperature regulating assemblies. The components 300 are arranged at intervals along the length direction of the mold cavity 230, and the temperature regulating components 300 are inserted into the fixed mold 210 and the movable mold 220. The temperature regulating components 300 inserted into the fixed mold 210 and the temperature regulating components 300 inserted into the movable mold 220 correspond one to one in the horizontal direction. The temperature regulating components 300 automatically adjust their heat exchange efficiency to achieve temperature regulation of the fixed mold 210 and the movable mold 220, and the temperature regulating components 300 are configured so that their heat exchange efficiency is negatively correlated with the cross-sectional area perpendicular to the length direction of the mold cavity 230.

[0056] Before injection molding, the movable mold 220 is first slid to be disconnected from the fixed mold 210, and then the mold cavity 230 is purged. After the purging is completed, the movable mold 220 is slid to be connected to the fixed mold 210, and the mold cavity 230 is completed. At this time, the metal liquid to be injected (such as antimagnetic metals such as aluminum alloy solution or magnesium alloy solution) is injected into the mold cavity 230. After the metal liquid fills the mold cavity 230, the casting is cooled after maintaining the pressure for a certain period of time. At this time, the temperature regulating component 300 is started. The temperature regulating component 300 automatically adjusts its heat exchange efficiency to achieve temperature regulation of the fixed mold 210 and the movable mold 220. Therefore, the heat transferred from the casting to the fixed mold 210 and the movable mold 220 is gradually absorbed by the temperature regulating component 300, and the temperature of the casting itself is gradually reduced. The node component 300 is configured so that its heat exchange efficiency is negatively correlated with the cross-sectional area perpendicular to the length direction of the mold cavity 230. Therefore, the larger the cross-sectional area in the length direction of the mold cavity 230, the higher the heat exchange efficiency of the temperature regulating component 300 here, and the smaller the cross-sectional area in the length direction of the mold cavity 230, the lower the heat exchange efficiency of the temperature regulating component 300 here. In this way, the cooling rates of the casting at various locations along its length direction can be balanced, so that the temperature change rates at different cross-sectional areas of the casting are basically consistent, avoiding the situation where the part with a small cross-sectional area has been completely cooled while the temperature of the part with a large cross-sectional area is still high, thereby ensuring that the microstructure, mechanical properties, wear resistance and creep properties of the casting will not be affected due to excessive differences in cooling rates at various locations along the length direction of the casting.

[0057] After the current casting has cooled, the pressure is maintained for a period of time, and then the movable mold 220 is slid to be disconnected from the fixed mold 210. At this time, the casting is taken out of the mold cavity 230, and then the mold cavity 230 is purged, and then the above steps are repeated to cast the next casting.

[0058] In a further embodiment, Figure 6-Figure 8 As shown, the temperature adjustment component 300 includes a heat-conducting plunger 310, a flow regulating unit 320, a driving unit 330 and a substrate 340. The heat-conducting plunger 310 passes through the substrate 340 and is inserted into the fixed mold 210 and the movable mold 220. A circulation circuit 311 of a heat exchange medium is opened in the heat-conducting plunger 310. There are two flow regulating units 320. The two flow regulating units 320 are arranged at intervals outside the heat-conducting plunger 310 and the two flow regulating units 320 are respectively connected to the input end and the output end of the circulation circuit 311. The ends of the two flow regulating units 320 away from the circulation circuit 311 are arranged on the substrate 340. The substrate 340 is respectively provided with a first flow input port 341 and a first flow output port 342. The ends of the two flow regulating units 320 away from the circulation circuit 311 are respectively connected to the first flow input port 341 and the first flow output port 342. The driving unit 330 is used to drive the flow regulating units 320 to operate so as to adjust the flow of the heat exchange medium in the circulation circuit 311.

[0059] It should also be noted that the first flow input port 341 is connected to the output end of the first flow pump, and the first flow output port 342 is connected to the input end of the second flow pump. Both the first flow pump and the second flow pump are constant pressure pumps, that is, the pressure of the heat exchange medium they transport remains unchanged. A first cooling transfer box should also be provided on the outside of the substrate 340, and the first cooling transfer box contains heat exchange medium. The input end of the first flow pump and the output end of the second flow pump are both inserted into the first cooling transfer box and are located below the liquid level of the heat exchange medium. A cooler should also be provided at the bottom of the first cooling transfer box, and the cooler is used to cool the cooling medium in the first cooling transfer box.

[0060] When in use, start the first flow pump and the second flow pump. At this time, the heat exchange medium is input into the flow regulating unit 320 connected thereto through the first flow input port 341. After passing through the flow regulating unit 320, the heat exchange medium flows into the circulation loop 311. The heat exchange medium continues to flow forward to another flow regulating unit 320 through the circulation loop 311. Further, the heat exchange medium flows into the first flow output port 342 through the current flow regulating unit 320. The first flow output port 342 outputs the heat exchange medium to the first cooling transfer box, thereby realizing the circulation of the heat exchange medium. Since the circulation loop 311 is opened on the heat-conducting plunger 310, and the heat-conducting plunger 310 is inserted into the fixed mold 210 and the movable mold 220, the heat of the casting is absorbed by the fixed mold 210 and the movable mold 220, and then the heat is transferred to the heat-conducting plunger 310 after passing through the fixed mold 210 and the movable mold 220, and finally absorbed by the heat exchange medium flowing in the circulation loop 311, so that the temperature of the casting can be reduced.

[0061] During the cooling process of the casting, the driving units 330 located at various locations along the length direction of the mold cavity 230 control the adaptive action of the corresponding flow regulating units 320, so that the smaller the cross-sectional area in the length direction of the mold cavity 230, the smaller the input and input flow of the corresponding flow regulating unit 320. Conversely, the larger the cross-sectional area in the length direction of the mold cavity 230, the larger the input and input flow of the corresponding flow regulating unit 320. In this way, the temperature change rate at different cross-sectional areas of the casting can be basically consistent through adaptive flow regulation of the heat exchange medium, thereby avoiding the situation where the part with a small cross-sectional area has been completely cooled while the temperature of the part with a large cross-sectional area is still high.

[0062] In a further embodiment, Figure 7-Figure 10 As shown, the flow regulating unit 320 includes a first articulated sleeve rod 321, a second articulated sleeve rod 322, a first articulated column 323, a second articulated column 324, a first articulated seat 325 and a first half-ring block 326. The first articulated seat 325 is arranged at an outer end of the heat-conducting plunger 310, the first articulated column 323 is hinged to the first articulated seat 325, the first articulated column 323 is arranged at one end of the first articulated sleeve rod 321, the other end of the first articulated sleeve rod 321 is slidably sleeved with the second articulated sleeve rod 322, the end of the second articulated sleeve rod 322 away from the first articulated sleeve rod 321 is fixedly connected to the second articulated column 324, the second articulated column 324 is hinged on the base plate 340, the first half-ring block 326 is concentrically nested with the first articulated column 323 and the first half-ring block 326 is arranged on the base plate 340.

[0063] A first flow hole 3261 is provided on the inner arc surface of the first half ring block 326 corresponding to the flow regulating unit 320 connected to the input end of the circulation circuit 311, and one end of the first flow hole 3261 is connected to the first flow input port 341. A first flow channel 3221 is provided in the corresponding second articulated sleeve 322, and one end of the first flow channel 3221 can be connected to the first flow hole 3261, and a first connecting hose 3211 is inserted at the other end of the first flow channel 3221. The first connecting hose 3211 is installed in the corresponding first articulated sleeve 321, and one end of the first connecting hose 3211 away from the first flow channel 3221 is inserted at the input end of the circulation circuit 311.

[0064] The driving unit 330 is used to drive the corresponding second hinge column 324 to rotate relative to the first half ring block 326 to change the overlapping area of ​​the first flow hole 3261 and the first flow channel 3221, thereby adjusting the input flow rate of the heat exchange medium.

[0065] A second flow hole 3262 is provided on the inner arc surface of the first half ring block 326 corresponding to the flow regulating unit 320 connected to the input end of the circulation circuit 311, and one end of the second flow hole 3262 is connected to the first flow output port 342. A second flow channel 3222 is provided in the corresponding second articulated sleeve 322, and one end of the second flow channel 3222 can be connected to the second flow hole 3262. A second connecting hose 3212 is inserted at the other end of the second flow channel 3222. The second connecting hose 3212 is installed in the corresponding first articulated sleeve 321, and one end of the second connecting hose 3212 away from the second flow channel 3222 is inserted at the output end of the circulation circuit 311.

[0066] The driving unit 330 is used to drive the corresponding second hinge column 324 to rotate relative to the first half ring block 326 to change the overlapping area of ​​the second flow hole 3262 and the second flow channel 3222, thereby adjusting the output flow rate of the heat exchange medium.

[0067] When in use, driven by the first flow pump, the heat exchange medium enters the first circulation hole 3261 from the first flow input port 341, enters the first flow channel 3221 from the first flow hole 3261, enters the first connecting hose 3211 through the first flow channel 3221, enters the circulation loop 311 through the first connecting hose 3211, enters the second connecting hose 3212 through the circulation loop 311, enters the second flow channel 3222 through the second connecting hose 3212, enters the second circulation hole 3262 through the second flow channel 3222, and finally the heat exchange medium enters the first flow output port 342 from the second flow hole 3262, and under the action of the second flow pump, flows from the first flow output port 342 into the first cooling transfer box, thereby realizing the circulation of the heat exchange medium.

[0068] When the driving unit 330 needs to adjust the flow input by the flow regulating unit 320, the driving unit 330 drives the second hinged column 324 corresponding to the flow regulating unit 320 that controls the input of the heat exchange medium to rotate relative to the first half ring block 326 to change the overlapping area of ​​the first flow hole 3261 and the first flow channel 3221. Since the heat exchange medium is input at a constant pressure, the input flow of the heat exchange medium changes accordingly after the flow cross-section changes.

[0069] When the driving unit 330 needs to adjust the flow output by the flow regulating unit 320, the driving unit 330 drives the second hinged column 324 corresponding to the flow regulating unit 320 that controls the output of the heat exchange medium to rotate relative to the first half ring block 326 to change the overlapping area of ​​the second flow hole 3262 and the second flow channel 3222. Since the heat exchange medium is input at a constant pressure, the input flow of the heat exchange medium changes accordingly after the flow cross-section changes.

[0070] It is understandable that when the input / output flow rate of the heat exchange medium increases, the heat exchange medium can take away more heat from the fixed mold 210 and the movable mold 220 per unit time, so the heat exchange efficiency is higher. When the input / output flow rate of the heat exchange medium decreases, the heat exchange medium can take away less heat from the fixed mold 210 and the movable mold 220 per unit time, so the heat exchange efficiency is lower.

[0071] In a further embodiment, Figure 7-Figure 11 As shown, a second flow input port 343 is provided on the substrate 340, the second flow input port 343 and the first flow input port 341 are not connected to each other, and the temperature of the heat exchange medium in the second flow input port 343 and the first flow input port 341 is different, and the temperature of the heat exchange medium flowing through the first flow input port 341 and the first flow output port 342 is lower than the temperature of the heat exchange medium flowing through the second flow input port 343 and the second flow output port 344.

[0072] A third flow hole 3263 is also provided on the inner arc surface of the first half ring block 326 corresponding to the flow regulating unit 320 connected to the input end of the flow loop 311. The third flow hole 3263 is connected to the second flow input port 343, and the third flow hole 3263 is not connected to the first flow hole 3261.

[0073] The driving unit 330 is further used to drive the corresponding second hinge column 324 to rotate relative to the first half ring block 326 , so that one end of the first flow channel 3221 can be selectively connected to the first flow hole 3261 or the third flow hole 3263 .

[0074] It should be noted here that, similarly, the second flow input port 343 is connected to the output end of the third flow pump, and the second flow input port 343 is connected to the input end of the third flow pump. The third flow pump and the fourth flow pump are also constant pressure pumps, that is, the pressure of the heat exchange medium they transport remains unchanged. A second cooling transfer box should also be provided on the outside of the substrate 340, and the second cooling transfer box also contains heat exchange medium. The input end of the third flow pump and the output end of the fourth flow pump are both inserted into the second cooling transfer box and are located below the liquid level of the heat exchange medium. A cooler is also provided at the bottom of the second cooling transfer box, and the cooler is used to cool the cooling medium in the first cooling transfer box.

[0075] When the second hinge column 324 rotates relative to the first half ring block 326 so that the first flow channel 3221 switches from being connected to the first flow hole 3261 to being connected to the third flow hole 3263, the temperature of the heat exchange medium flowing into the first flow channel 3221 is lower, and the temperature of the heat exchange medium is greater than the temperature of the fixed mold 210 and the movable mold 220. At this time, the heat exchange capacity of the heat exchange medium is stronger, and therefore the heat exchange efficiency is higher.

[0076] It can be understood that the purpose of enabling one end of the first flow channel 3221 to selectively communicate with the first flow hole 3261 or the third flow hole 3263 is to ensure that heat exchange medium circulates in the flow circuit 311 corresponding to each flow regulating unit 320 .

[0077] In a further embodiment, Fig. 9 , Fig.11 and Fig.12 As shown, a second flow output port 344 is provided on the substrate 340, and the second flow output port 344 and the first flow output port 342 are not connected to each other. A fourth flow hole 3264 is also provided on the inner arc surface of the first half ring block 326 corresponding to the flow regulating unit 320 connected to the output end of the circulation loop 311, and the fourth flow hole 3264 is connected to the second flow output port 344, and the fourth flow hole 3264 and the second flow hole 3262 are not connected to each other.

[0078] The driving unit 330 is further used to drive the corresponding second hinge column 324 to rotate relative to the first half ring block 326 , so that one end of the second flow channel 3222 can be connected to either the second flow hole 3262 or the fourth flow hole 3264 .

[0079] By providing the fourth flow hole 3264 , the heat exchange medium flowing into the circulation circuit 311 through the third flow hole 3263 can finally flow back into the second cooling transfer box through the fourth flow hole 3264 , thereby preventing heat exchange media of different temperatures from mixing with each other.

[0080] In a further embodiment, Figure 8-Figure 10As shown, both ends of the first connecting hose 3211 and the second connecting hose 3212 are provided with a corrugated retractable structure.

[0081] The corrugated retractable structure is provided at both ends of the first connecting hose 3211 and the second connecting hose 3212 to adapt to the extension or contraction of the second articulated sleeve 322 relative to the first articulated sleeve 321, so that the first connecting hose 3211 remains connected to the flow circuit 311 and the first flow channel 3221, and the second connecting hose 3212 remains connected to the flow circuit 311 and the second flow channel 3222.

[0082] In a further embodiment, Figure 6 As shown, a plurality of insertion holes 240 are provided on the sides of the fixed mold 210 and the movable mold 220. The plurality of insertion holes 240 are arranged at intervals along the length direction of the mold cavity 230. The insertion holes 240 extend toward the interior of the fixed mold 210 and the movable mold 220, and the spacing between the bottoms of the plurality of insertion holes 240 and the mold cavity 230 is the same.

[0083] A heat-conducting sleeve 250 is sleeved in the insertion hole 240 . The heat-conducting sleeve 250 abuts against the bottom of the insertion hole 240 . The heat-conducting plunger 310 is slidably inserted in the heat-conducting sleeve 250 .

[0084] The insertion hole 240 is provided to install the heat-conducting plunger 310 inside the insertion hole 240 , and the heat-conducting sleeve 250 is provided between the insertion hole 240 and the heat-conducting plunger 310 to prevent the outer peripheral surface of the heat-conducting plunger 310 from being excessively worn.

[0085] It can be understood that the reason for making the distances between the bottoms of the plurality of insertion holes 240 and the mold cavity 230 the same is to make the distances between each temperature regulating component 300 and the mold cavity 230 basically the same, so that the heat exchange efficiency can be adjusted by simply adjusting the flow rate of the heat exchange medium in the temperature regulating component 300 without causing excessive heat loss.

[0086] It is understandable that the insertion holes 240 opened on the fixed mold 210 and the movable mold 220 are rough-machined holes, and the reason why they are not fine-machined holes is due to processing costs and processing difficulties. A heat-conducting sleeve 250 is set between the insertion hole 240 and the heat-conducting plunger 310 as a consumable material, and the heat-conducting plunger 310 can be prevented from being worn by ensuring the inner circumferential surface accuracy of the heat-conducting sleeve 250.

[0087] In a further embodiment, Figure 2 , Figure 3 , Figure 7 and Figure 6As shown, the driving unit 330 includes a magnet 331, a first elastic member 332, a second elastic member 333, a hydraulic mechanism 334 and a pressing plate 335. The hydraulic mechanism 334 is arranged on the frame 100. The output end of the hydraulic mechanism 334 is fixedly connected to the pressing plate 335. The pressing plate 335 and the movable mold 220 can move synchronously. The pressing plate 335 and the base plate 340 are elastically connected through the first elastic member 332. The magnet 331 is arranged on the heat-conducting plunger 310 away from the second elastic member 333. On one end surface, the magnetic properties of the opposite surfaces of the two magnets 331 at the same horizontal height in the fixed mold 210 and the movable mold 220 are the same, the substrate 340 and the thermal conductive plunger 310 are elastically connected by the second elastic member 333, the first elastic member 332 is configured so that when the pressure plate 335 and the substrate 340 are close to each other, the first elastic member 332 is compressed, and the second elastic member 333 is configured so that when the plug body of the thermal conductive plunger 310 and the substrate 340 are close to each other, the second elastic member 333 is compressed.

[0088] When closing the mold, the hydraulic mechanism 334 drives the pressing plate 335 to approach the fixed mold 210. Since the pressing plate 335 and the movable mold 220 can move synchronously, the movable mold 220 approaches the fixed mold 210, and the fixed mold 210 and the movable mold 220 gradually complete the mold closing. When opening the mold, the hydraulic mechanism 334 drives the pressing plate 335 away from the fixed mold 210. Since the pressing plate 335 and the movable mold 220 can move synchronously, the movable mold 220 away from the fixed mold 210, and the fixed mold 210 and the movable mold 220 gradually complete the mold opening.

[0089] It should be supplemented that the depth of the insertion hole 240 at the large cross-sectional area near the mold cavity 230 is smaller than the depth of the insertion hole 240 at the small cross-sectional area near the mold cavity 230. In addition, the length of the thermal conductive sleeve 250 should be adapted to the depth of the deepest insertion hole 240, so that the thermal conductive sleeve 250 can extend longer in the shallower insertion hole 240. After the fixed mold 210 and the movable mold 220 are closed, the position of the pressure plate 335 remains unchanged. At this time, the horizontal distance between the insertion hole 240 with a large cross-sectional area closer to the mold cavity 230 and the pressure plate 335 is larger, and the horizontal distance between the insertion hole 240 with a large cross-sectional area farther away from the mold cavity 230 and the pressure plate 335 is smaller. In addition, since the length of the thermal conductive sleeve 250 is adapted to the depth of the deepest insertion hole 240, except for the thermal conductive sleeve 250 corresponding to the deepest insertion hole 240, other thermal conductive sleeves 250 extend out of the insertion hole 240.

[0090] After the fixed mold 210 and the movable mold 220 are closed, under the action of magnetic repulsion, the magnet 331 drives the heat-conducting plunger 310 to move towards the substrate 340 relative to the heat-conducting sleeve 250, so that the first elastic member 332 and the second elastic member 333 are gradually compressed. At this time, one end of the plug body of the heat-conducting plunger 310 gradually approaches the substrate 340, so that the angle between the axis of the second hinged sleeve 322 and the axis of the heat-conducting plunger 310 gradually decreases, until the magnetic force from the magnet 331 and the sum of the elastic forces of the first elastic member 332 and the second elastic member 333 are balanced, and the angle between the axis of the first elastic member 332 and the axis of the heat-conducting plunger 310 no longer decreases. And the larger the cross-sectional area of ​​the mold cavity 230, the smaller the distance between the two magnets 331 is, so that the angle between the axis of the corresponding second hinged sleeve 322 and the axis of the heat-conducting plunger 310 is reduced. That is, the larger the cross-sectional area of ​​the mold cavity 230, the larger the angle between the axis of the corresponding second hinged sleeve 322 and the axis of the heat-conducting plunger 310. Therefore, through adaptive flow adjustment of the heat exchange medium, the temperature change rate at different cross-sectional areas of the casting can be basically consistent, avoiding the situation where the part with a small cross-sectional area has been completely cooled while the temperature of the part with a large cross-sectional area is still high.

[0091] In a further embodiment, Figure 2 and Figure 3 As shown, guide posts 260 are provided between the pressing plate 335 and the fixed mold 210 and between the pressing plate 335 and the movable mold 220 , and the axis of the guide posts 260 is parallel to the axis of the heat-conducting plunger 310 .

[0092] The guide column 260 is provided to connect the pressing plate 335 with the fixed mold 210 or the movable mold 220 through the guide column 260, so that when the telescopic end of the hydraulic mechanism 334 moves, it can drive the movable mold 220 to move synchronously by driving the pressing plate 335 to realize mold opening and closing.

[0093] In a further embodiment, Fig.12 As shown, a guide hole 345 is opened on the side of the base plate 340 , and the guide post 260 passes through the guide hole 345 .

[0094] The guide through hole 345 is provided to guide the movement of the substrate 340 and support the substrate 340 through the guide through hole 345 .

[0095] In other embodiments, Fig.13As shown, the distance between the third flow hole 3263 and the first flow hole 3261 is larger, so as to reduce the heat conduction between the heat exchange media of different temperatures. To adapt to this situation, the inlet of the first flow channel 3221 is set to a Y shape so that the first flow channel 3221 can still be connected to the third flow hole 3263 and the first flow hole 3261.

[0096] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0097] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A metal casting mold, characterized in that: include: frame; Fixed mold, the fixed mold is arranged on the frame; The movable mold is slidably arranged on the frame, and a mold cavity is opened on the opposite surfaces of the movable mold and the fixed mold. When the movable mold slides to connect with the fixed mold, the mold cavity completes the mold closing, and when the movable mold slides to disconnect from the fixed mold, the mold cavity completes the mold opening; A temperature regulating component, wherein there are multiple temperature regulating components, and the multiple temperature regulating components are arranged at intervals along the length direction of the mold cavity, and the temperature regulating components are inserted into the fixed mold and the movable mold. The temperature regulating components inserted into the fixed mold and the temperature regulating components inserted into the movable mold correspond one to one in the horizontal direction. The temperature regulating components realize temperature regulation of the fixed mold and the movable mold by automatically adjusting their heat exchange efficiency, and the temperature regulating components are configured so that the larger the cross-sectional area in the length direction of the mold cavity, the higher the heat exchange efficiency of the temperature regulating components here, and the smaller the cross-sectional area in the length direction of the mold cavity, the lower the heat exchange efficiency of the temperature regulating components here; the temperature regulating component comprises a heat-conducting plunger, a flow regulating unit, a driving unit and a substrate, the heat-conducting plunger passes through the substrate and is inserted into the fixed mold and the movable mold, a circulation circuit of a heat exchange medium is provided in the heat-conducting plunger, and there are two flow regulating units, which are arranged outside the heat-conducting plunger at intervals, and the two flow regulating units are respectively connected to the output of the circulation circuit. The input end and the output end are connected, and the ends of the two flow regulating units away from the circulation circuit are arranged on the substrate, and the first flow input port and the first flow output port are respectively arranged on the substrate, and the ends of the two flow regulating units away from the circulation circuit are respectively connected with the first flow input port and the first flow output port, and the driving unit is used to drive the flow regulating unit to operate so as to adjust the flow of the heat exchange medium in the circulation circuit; the flow regulating unit includes a first hinge sleeve rod, a second hinge sleeve rod, a first hinge column, a second hinge column, a first hinge seat and a first half ring block, the first hinge seat is arranged at an outer end of the heat-conducting plunger, the first hinge column is hinged to the first hinge seat, the first hinge column is arranged at one end of the first hinge sleeve rod, the other end of the first hinge sleeve rod is slidably sleeved with the second hinge sleeve rod, the end of the second hinge sleeve rod away from the first hinge sleeve rod is fixedly connected with the second hinge column, the second hinge column is hinged to the substrate, the first half ring block is concentrically nested with the second hinge column and the first half ring block is arranged on the substrate; A first flow hole is provided on the inner arc surface of the first half ring block corresponding to the flow regulating unit connected to the input end of the circulation circuit, one end of the first flow hole is connected to the first flow input port, a first flow channel is provided in the corresponding second hinged sleeve rod, one end of the first flow channel can be connected to the first flow hole, a first connecting hose is inserted at the other end of the first flow channel, the first connecting hose is installed in the corresponding first hinged sleeve rod, and one end of the first connecting hose away from the first flow channel is inserted at the input end of the circulation circuit; The driving unit is used to drive the corresponding second hinged column to rotate relative to the first half ring block to change the overlapping area of ​​the first flow hole and the first flow channel, thereby adjusting the input flow rate of the heat exchange medium; A second flow hole is provided on the inner arc surface of the first half ring block corresponding to the flow regulating unit connected to the output end of the circulation circuit, one end of the second flow hole is connected to the first flow output port, a second flow channel is provided in the corresponding second hinged sleeve rod, one end of the second flow channel can be connected to the second flow hole, a second connecting hose is inserted at the other end of the second flow channel, the second connecting hose is installed in the corresponding first hinged sleeve rod, and one end of the second connecting hose away from the second flow channel is inserted at the output end of the circulation circuit; The driving unit is used to drive the corresponding second hinged column to rotate relative to the first half ring block to change the overlapping area of ​​the second flow hole and the second flow channel, thereby adjusting the output flow of the heat exchange medium.

2. A metal casting mold according to claim 1, characterized in that: The substrate is provided with a second flow input port, the second flow input port and the first flow input port are not connected to each other, and the temperature of the heat exchange medium in the second flow input port and the first flow input port is different; A third flow hole is also provided on the inner arc surface of the first half ring block corresponding to the flow regulating unit connected to the input end of the flow loop, the third flow hole is connected to the second flow input port, and the third flow hole is not connected to the first flow hole; The driving unit is also used to drive the corresponding second hinged column to rotate relative to the first half ring block, so that one end of the first flow channel can be selectively connected to the first flow hole or the third flow hole.

3. A metal casting mold according to claim 2, characterized in that: The substrate is provided with a second flow output port, and the second flow output port and the first flow output port are not connected to each other; A fourth flow hole is also provided on the inner arc surface of the first half ring block corresponding to the flow regulating unit connected to the output end of the flow loop, the fourth flow hole is connected to the second flow output port, and the fourth flow hole is not connected to the second flow hole; The driving unit is also used to drive the corresponding second hinge column to rotate relative to the first half ring block, so that one end of the second flow channel can be connected to either the second flow hole or the fourth flow hole.

4. A metal casting mold according to claim 1, characterized in that: Both ends of the first connecting hose and the second connecting hose are provided with a corrugated retractable structure.

5. A metal casting mold according to claim 1, characterized in that: The sides of the fixed mold and the movable mold are each provided with a plurality of insertion holes, which are arranged at intervals along the length direction of the mold cavity, extend toward the inside of the fixed mold and the movable mold, and the distances between the bottoms of the plurality of insertion holes and the mold cavity are the same; A heat-conducting sleeve is sleeved in the insertion hole, the heat-conducting sleeve is in contact with the bottom of the insertion hole, and the heat-conducting plunger is slidably inserted in the heat-conducting sleeve.

6. A metal casting mold according to claim 5, characterized in that: The driving unit comprises a magnet, a first elastic member, a second elastic member, a hydraulic mechanism and a pressing plate, the hydraulic mechanism is arranged on a frame, an output end of the hydraulic mechanism is fixedly connected to the pressing plate, the material storage unit is fixedly connected to the movable mold, the pressing plate and the base plate are elastically connected via the first elastic member, the base plate and the heat-conducting plunger are elastically connected via the second elastic member, the magnet is arranged on an end surface of the heat-conducting plunger away from the second elastic member, and the opposite surfaces of the two magnets at the same horizontal height in the fixed mold and the movable mold have the same magnetic properties; The first elastic member is configured so that when the pressing plate and the base plate are close to each other, the first elastic member is compressed; The second elastic member is configured so that when the plug body and the substrate of the heat-conducting plunger are close to each other, the second elastic member is compressed.

7. A metal casting mold according to claim 6, characterized in that: A guide column is arranged between the pressing plate and the fixed mold and between the pressing plate and the movable mold, and the axis of the guide column is parallel to the axis of the heat-conducting plunger.

8. A metal casting mold according to claim 7, characterized in that: A guide through hole is provided on the side of the base plate, and the guide post passes through the guide through hole.

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