Sprue spreader structure and die-casting die

Abstract

The utility model provides a sprue spreader structure and a die-casting die. The sprue spreader structure comprises a waterproof assembly and a sprue spreader body. A stepped hole and a cooling blind hole which are communicated with each other are formed in the sprue spreader body, and the sprue spreader body is further provided with a runner heat dissipation interaction surface; one end of the water insulation assembly is embedded in the stepped hole in a sealing manner, and the other end of the water insulation assembly extends to the cooling blind hole, so that the sprue spreader body and the water insulation assembly jointly define a profiling cooling water path; the inner wall, close to the flow channel heat dissipation interaction face, of the profiling cooling water channel is matched with the flow channel heat dissipation interaction face, so that the distance values from all position points on the flow channel heat dissipation interaction face to the corresponding position points on the inner wall, close to the flow channel heat dissipation interaction face, of the profiling cooling water channel are the same. Therefore, in the cooling forming stage, the melt of the main runner can be well and uniformly cooled through the profiling cooling water path, and meanwhile, the cooling efficiency of cooling water is improved, so that the mold opening time is shortened, and the forming quality and the production efficiency of castings are effectively ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to die casting die technical field especially is related to a shunt cone structure and die casting die. BACKGROUND

[0002] In the structural design of the die casting die, the design of the gating system is the main factor directly affecting the filling, cooling and forming efficiency of the aluminum alloy melt. Among them, the shunt cone is an important structure of the main runner, which plays a role in guiding flow, shunting, assisting cake demolding, slowing down and balancing the melt. In addition, during the process of melt forming and cooling into a casting, the cooling water channel arranged inside the shunt cone needs to be connected with cooling water to cool the melt in the main runner.

[0003] However, the cooling water channel of the shunt cone in the prior art usually adopts a straight-through cylindrical cooling water channel design. Although the above-mentioned cooling water channel design structure is simple and easy to drill, the straight-through cylindrical cooling water channel can easily cause uneven cooling of the melt in the main runner, and at the same time, the cooling efficiency of the cooling water is low, thereby prolonging the cooling and mold opening time, and the forming quality and production efficiency of the casting cannot be effectively guaranteed. SUMMARY

[0004] The utility model aims at overcoming the deficiencies in the prior art, and provides a shunt cone structure and die casting die which can uniformly cool the melt in the main runner, improve the cooling efficiency of the cooling water, shorten the mold opening time, and effectively ensure the forming quality and production efficiency of the casting.

[0005] The utility model aims at overcoming the deficiencies in the prior art, and provides a shunt cone structure and die casting die which can uniformly cool the melt in the main runner, improve the cooling efficiency of the cooling water, shorten the mold opening time, and effectively ensure the forming quality and production efficiency of the casting.

[0006] A shunt cone structure for guiding melt, comprising:

[0007] A water isolation assembly;

[0008] A shunt cone body having a step hole and a cooling blind hole connected thereto; the shunt cone body is further provided with a flow channel heat dissipation interaction surface for extending to the main runner; one end of the water isolation assembly is sealingly embedded in the step hole, and the other end of the water isolation assembly extends to the cooling blind hole, so that the shunt cone body and the water isolation assembly together form a profiled cooling water channel;

[0009] The inner wall of the profiled cooling water channel adjacent to the flow channel heat dissipation interaction surface matches the flow channel heat dissipation interaction surface.

[0010] In one embodiment, the shunt cone body is provided with a water inlet hole and a water outlet hole respectively; the water inlet hole and the water outlet hole are respectively connected to the profiled cooling water channel.

[0011] In one of the embodiments, the water-proof assembly comprises a sealing base and a water-proof sheet; the sealing base is detachably connected with the water-proof sheet, and an end of the water-proof sheet away from the sealing base extends to the cooling blind hole;

[0012] The sealing base is provided with a water inlet flow channel, and the sealing base is sealingly embedded in the stepped hole, so that the water inlet hole is connected with one end of the profiled cooling water channel through the water inlet flow channel, and the water outlet hole is connected with the other end of the profiled cooling water channel.

[0013] In one of the embodiments, the water-proof sheet has a preset distance from the cooling blind hole at the end away from the sealing base.

[0014] In one of the embodiments, the flow channel heat dissipation interaction surface is an inner concave surface structure; and / or,

[0015] The profiled cooling water channel is adjacent to the inner wall of the flow channel heat dissipation interaction surface, and has the same shape as the flow channel heat dissipation interaction surface.

[0016] In one of the embodiments, the flow channel heat dissipation interaction surface is arranged on the side of the flow distribution cone body.

[0017] A die-casting mold comprises a fixed mold core, a movable mold core and the flow distribution cone structure of any of the above embodiments;

[0018] The fixed mold core is fixedly installed on a fixed mold seat, the movable mold core is fixedly installed on a movable mold seat, one part of the flow distribution cone body is sequentially embedded in the side of the fixed mold core and the side of the movable mold core, the other part of the flow distribution cone body is embedded in the movable mold seat, and the flow distribution cone body is provided with a water inlet hole and a water outlet hole; the water inlet hole and the water outlet hole are connected with the profiled cooling water channel.

[0019] In one of the embodiments, the die-casting mold further comprises a sleeve, the sleeve is provided with a material inlet channel, the sleeve is fixedly installed on the fixed mold seat, and an end surface of the sleeve is used for abutting against a stepped end surface of the flow distribution cone body, so that the sleeve and the flow distribution cone body jointly form a main flow channel connected with the material inlet channel.

[0020] In one of the embodiments, the die-casting mold further comprises a water inlet pipe connector and a water outlet pipe connector; one end of the water inlet pipe connector penetrates through the movable mold seat and is connected with the water inlet hole, one end of the water outlet pipe connector penetrates through the movable mold seat and is connected with the water outlet hole, and the other end of the water inlet pipe connector and the other end of the water outlet pipe connector are respectively used for being connected with a mold temperature machine.

[0021] Compared with the prior art, the die-casting mold has at least the following advantages:

[0022] By setting the profiled cooling water path, and making the profiled cooling water path adjacent to the inner wall of the flow channel heat dissipation interaction surface match the flow channel heat dissipation interaction surface, that is, making the distance value from each position point on the flow channel heat dissipation interaction surface to the corresponding position point on the inner wall of the profiled cooling water path adjacent to the flow channel heat dissipation interaction surface be the same; in this way, in the cooling forming stage, when the cooling water flows into the profiled cooling water path, the profiled cooling water path can better uniformly cool the melt of the main flow channel, and at the same time, the cooling efficiency of the cooling water is improved, thereby shortening the mold opening time, and effectively ensuring the forming quality and production efficiency of the casting. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0024] Figure 1 is a sectional view of the flow splitting cone structure in an embodiment;

[0025] Figure 2 is a sectional view of the flow splitting cone structure shown in the figure; Figure 1

[0026] Figure 3 is a structural schematic view of the flow splitting cone structure shown in the figure; Figure 1

[0027] Figure 4 is a partial structure sectional view of the die casting mold;

[0028] Reference signs: flow splitting cone structure 10; water isolation assembly 100; sealing base 110; water inlet flow channel 1101; water isolation sheet 120; flow splitting cone body 200; stepped hole 201; cooling blind hole 202; flow channel heat dissipation interaction surface 210; profiled cooling water path 203; water inlet hole 204; water outlet hole 205; fixed mold core 300; movable mold core 400; fixed mold base 500; movable mold base 600; material sleeve 700; material inlet channel 701; water inlet pipe connector 800; water outlet pipe connector 900. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the related drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be realized in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.​​

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] This disclosure provides a flow divider cone structure for guiding melt flow. The flow divider cone structure includes a water-blocking component and a flow divider cone body. The flow divider cone body has interconnected stepped holes and cooling blind holes; the flow divider cone body also has a flow channel heat dissipation interaction surface, which extends to the main flow channel. One end of the water-blocking component is sealed and embedded in the stepped hole, and the other end of the water-blocking component extends to the cooling blind hole, so that the flow divider cone body and the water-blocking component together form a contoured cooling water channel; wherein, the inner wall of the contoured cooling water channel adjacent to the flow channel heat dissipation interaction surface matches the flow channel heat dissipation interaction surface.

[0033] Please see Figures 1 to 4 To better understand the flow divider cone structure 10 of this application, the flow divider cone structure 10 will be further explained below:

[0034] One embodiment of the flow divider cone structure 10 includes a water-blocking component 100 and a flow divider cone body 200. The flow divider cone body 200 has interconnected stepped holes 201 and cooling blind holes 202; the flow divider cone body 200 also has a flow channel heat dissipation interaction surface 210, which extends to the main flow channel. One end of the water-blocking component 100 is sealed and embedded in the stepped hole 201, and the other end of the water-blocking component 100 extends to the cooling blind hole 202, so that the flow divider cone body 200 and the water-blocking component 100 together form a contoured cooling water channel 203; wherein, the inner wall of the contoured cooling water channel 203 adjacent to the flow channel heat dissipation interaction surface 210 matches the flow channel heat dissipation interaction surface 210.

[0035] In this embodiment, by setting up the contour cooling water channel 203, and making the inner wall of the adjacent flow channel heat dissipation interaction surface 210 of the contour cooling water channel 203 match the flow channel heat dissipation interaction surface 210, the distance from each position point on the flow channel heat dissipation interaction surface 210 to the corresponding position point on the inner wall of the adjacent flow channel heat dissipation interaction surface 210 of the contour cooling water channel 203 is the same. In this way, when the cooling water is introduced into the contour cooling water channel 203 during the cooling and forming stage, the melt in the main flow channel can be cooled evenly through the contour cooling water channel 203, and the cooling efficiency of the cooling water is improved at the same time, thereby shortening the mold opening time and effectively ensuring the forming quality and production efficiency of the casting.

[0036] like Figure 1 and Figure 2 As shown, in one embodiment, the flow divider cone body 200 is provided with an inlet hole 204 and an outlet hole 205; the inlet hole 204 and the outlet hole 205 are respectively connected to the contour cooling water channel 203. Thus, cooling water enters the contour cooling water channel 203 through the inlet hole 204, and the contour cooling water channel 203 can effectively and uniformly cool the melt in the main flow channel. Finally, the cooling water flows out from the outlet hole 205 and begins the next cooling cycle. Specifically, in this embodiment, the cooling water circulation is achieved by an external mold temperature controller.

[0037] like Figure 1 and Figure 2 As shown, in one embodiment, the water-proof assembly 100 includes a sealing base 110 and a water-proof plate 120; the sealing base 110 and the water-proof plate 120 are detachably connected, and one end of the water-proof plate 120 away from the sealing base 110 extends to the cooling blind hole 202; the sealing base 110 has a water inlet channel 1101, and the sealing base 110 is sealed and embedded in the stepped hole 201, so that the water inlet hole 204 is connected to one end of the contoured cooling water channel 203 through the water inlet channel 1101, and the water outlet hole 205 is connected to the other end of the contoured cooling water channel 203.

[0038] It is understood that in this embodiment, the sealing base 110 and the water-insulating plate 120 are connected by a snap-fit ​​method. This allows the water-insulating plate 120 to be snapped onto the sealing base 110 using a material with good thermal conductivity, such as a copper sheet. This allows the water-insulating plate 120 to guide the cooling water flowing into the contoured cooling water channel 203 deep into the cooling blind hole 202, thereby improving the cooling efficiency of the melt in the main channel. Therefore, the flow path of the cooling water is as follows: inlet hole 204 - inlet channel 1101 - contoured cooling water channel 203 - outlet hole 205.

[0039] like Figure 2As shown, in one embodiment, the end of the water-blocking plate 120 facing away from the sealing base 110 is at a predetermined distance from the cooling blind hole 202. This ensures the flow of cooling water in the contoured cooling water channel 203. Specifically, in this embodiment, the predetermined distance is typically between 5mm and 10mm. Of course, this is not a limitation, and those skilled in the art can make other choices as needed.

[0040] like Figure 1 , Figure 2 and Figure 4 As shown, in one embodiment, the heat dissipation interface 210 of the flow channel has a concave structure. In another embodiment, the shape of the inner wall of the contoured cooling water channel 203 adjacent to the heat dissipation interface 210 of the flow channel has the same shape as the heat dissipation interface 210 of the flow channel.

[0041] It is understood that the shape of the inner wall of the heat dissipation interaction surface 210 adjacent to the flow channel of the contoured cooling water channel 203 is the same as the shape of the concave surface structure; at the same time, the heat dissipation interaction surface 210 is part of the structure that surrounds the inner wall of the main flow channel. In this way, during the cooling and forming stage, the melt in the main flow channel can transfer heat evenly to the inner wall of the heat dissipation interaction surface 210 adjacent to the flow channel of the contoured cooling water channel 203 through the heat dissipation interaction surface 210, thereby using the cooling water to remove heat and uniformly and efficiently cool the melt in the main flow channel.

[0042] Specifically, in this embodiment, the geometry of some of the contour cooling water channels 203 is the same as that of the main channel, so that the contour cooling water channels 203 can better cool the melt in the main channel evenly and improve the cooling efficiency of the cooling water, thereby shortening the mold opening time and effectively ensuring the molding quality and production efficiency of the casting.

[0043] like Figure 1 As shown, in one embodiment, the heat dissipation interaction surface 210 of the flow channel is disposed on the side of the flow divider cone body 200. No limitation is made here, and those skilled in the art can make other choices as needed.

[0044] like Figure 2 As shown, in one embodiment, both the water-blocking component 100 and the diversion cone body 200 are integrally molded structures. This ensures that the water-blocking component 100 and the diversion cone body 200 have good structural strength.

[0045] Please refer to the following: Figures 1 to 4This application also provides a die-casting mold, including a fixed mold core 300, a movable mold core 400, and a flow divider cone structure 10 as described in any of the above embodiments; the fixed mold core 300 is fixedly installed on a fixed mold base 500, the movable mold core 400 is fixedly installed on a movable mold base 600, a portion of the flow divider cone body 200 is sequentially embedded in the side of the fixed mold core 300 and the side of the movable mold core 400, and another portion of the flow divider cone body 200 is embedded in the movable mold base 600, the flow divider cone body 200 is respectively provided with a water inlet hole 204 and a water outlet hole 205; the water inlet hole 204 and the water outlet hole 205 are both connected to the contour cooling water channel 203.

[0046] In this embodiment, the die-casting mold adopts the above-mentioned flow divider cone structure, which can better cool the melt in the main channel evenly and improve the cooling efficiency of the cooling water, thereby shortening the mold opening time of the fixed mold base 500 and the moving mold base 600, and thus effectively ensuring the molding quality and production efficiency of the casting.

[0047] like Figure 3 and Figure 4 As shown, in one embodiment, the die-casting mold further includes a material sleeve 700, which has a feeding channel 701. The material sleeve 700 is fixedly installed on the fixed mold base 500, and one end face of the material sleeve 700 is used to abut against the stepped end face of the flow divider cone body 200, so that the material sleeve 700 and the flow divider cone body 200 together form a main channel that communicates with the feeding channel 701.

[0048] It can be understood that the flow divider cone body 200 is one of the structures that make up the main flow channel. Thus, during the injection stage of the die casting machine, the melt can be injected sequentially into the main flow channel, the flow divider channel and the cavity through the feed channel 701. In this way, during the cooling and forming stage, efficient cooling of the flow divider cone body 200 is equivalent to efficient cooling of the melt in the main flow channel.

[0049] like Figures 2 to 4 As shown, in one embodiment, the die-casting mold further includes an inlet pipe connector 800 and an outlet pipe connector 900. One end of the inlet pipe connector 800 passes through the moving mold base 600 and is connected to the inlet hole 204. One end of the outlet pipe connector 900 passes through the moving mold base 600 and is connected to the outlet hole 205. The other ends of the inlet pipe connector 800 and the outlet pipe connector 900 are respectively used to connect to a mold temperature controller. Thus, the inlet pipe connector 800 and the outlet pipe connector 900 facilitate the formation of a circulation loop between the contour cooling water circuit 203 and the mold temperature controller. The mold temperature controller is prior art and will not be described in detail here.

[0050] Compared with the prior art, the present invention has at least the following advantages:

[0051] By setting up a contoured cooling water channel, and ensuring that the inner wall of the heat dissipation interaction surface adjacent to the flow channel matches the heat dissipation interaction surface of the flow channel, the distance from each point on the heat dissipation interaction surface of the flow channel to the corresponding point on the inner wall of the heat dissipation interaction surface adjacent to the flow channel is the same. In this way, during the cooling and forming stage, when the cooling water is introduced into the contoured cooling water channel, the melt in the main flow channel can be cooled more evenly through the contoured cooling water channel, and the cooling efficiency of the cooling water is improved at the same time. This shortens the mold opening time and effectively ensures the forming quality and production efficiency of the casting.

[0052] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A flow-diverting cone structure for guiding melt flow, characterized in that, The flow divider cone structure includes: Waterproof components; The flow divider cone body has interconnected stepped holes and cooling blind holes; the flow divider cone body also has a flow channel heat dissipation interaction surface, which is used to extend to the main flow channel; one end of the water-proof component is sealed and embedded in the stepped hole, and the other end of the water-proof component extends to the cooling blind hole, so that the flow divider cone body and the water-proof component together form a contoured cooling water channel. The inner wall of the contoured cooling water channel adjacent to the heat dissipation interaction surface of the flow channel matches the heat dissipation interaction surface of the flow channel.

2. The flow-diverting cone structure according to claim 1, characterized in that, The flow divider cone body is provided with an inlet hole and an outlet hole respectively; the inlet hole and the outlet hole are respectively connected to the contour cooling water channel.

3. The flow-diverting cone structure according to claim 2, characterized in that, The water-proof assembly includes a sealing base and a water-proof plate; the sealing base and the water-proof plate are detachably connected, and one end of the water-proof plate away from the sealing base extends to the cooling blind hole; The sealing base has a water inlet channel, and the sealing base is sealed and embedded in the stepped hole, so that the water inlet is connected to one end of the conformal cooling water channel through the water inlet channel, and the water outlet is connected to the other end of the conformal cooling water channel.

4. The flow divider cone structure according to claim 3, characterized in that, The end of the water-proof plate that faces away from the sealing base is at a predetermined distance from the cooling blind hole.

5. The flow divider cone structure according to claim 1, characterized in that, The heat dissipation interaction surface of the flow channel has a concave structure; and / or The shape of the inner wall of the contoured cooling water channel adjacent to the heat dissipation interaction surface of the flow channel is the same as the shape of the heat dissipation interaction surface of the flow channel.

6. The flow divider cone structure according to claim 1, characterized in that, The heat dissipation interaction surface of the flow channel is located on the side of the flow divider cone body.

7. The flow divider cone structure according to claim 1, characterized in that, Both the water-blocking component and the diversion cone body are integrally molded structures.

8. A die-casting mold, characterized in that, Includes a fixed mold core, a moving mold core, and the flow divider cone structure as described in any one of claims 1-6; The fixed mold core is used to be fixedly installed on the fixed mold base, and the moving mold core is used to be fixedly installed on the moving mold base. A portion of the flow divider cone body is sequentially embedded in the side of the fixed mold core and the side of the moving mold core, and another portion of the flow divider cone body is embedded in the moving mold base. The flow divider cone body is provided with a water inlet hole and a water outlet hole respectively. The water inlet hole and the water outlet hole are both connected to the contour cooling water channel.

9. The die-casting mold according to claim 8, characterized in that, The die-casting mold also includes a material sleeve, which has a feeding channel. The material sleeve is fixedly installed on the fixed mold base. One end face of the material sleeve is used to abut against the stepped end face of the flow divider cone body, so that the material sleeve and the flow divider cone body together form a main channel connected to the feeding channel.

10. The die-casting mold according to claim 8, characterized in that, The die-casting mold also includes an inlet pipe connector and an outlet pipe connector; one end of the inlet pipe connector passes through the moving mold base and is connected to the inlet hole, one end of the outlet pipe connector passes through the moving mold base and is connected to the outlet hole, and the other ends of the inlet pipe connector and the outlet pipe connector are respectively used to connect to the mold temperature controller.

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