A box body pouring structure

Abstract

The application discloses a box body pouring structure, which comprises a pouring head, a flow distribution channel in communication with the pouring head and having an arc-shaped cross section, a first flow distribution channel, a second flow distribution channel and a third flow distribution channel, the head ends of the first flow distribution channel, the second flow distribution channel and the third flow distribution channel are in communication with the lower end surface of the flow distribution channel, and the tail ends of the first flow distribution channel, the second flow distribution channel and the third flow distribution channel are in communication with a ridge plate in the box body, the first flow distribution channel, the second flow distribution channel and the third flow distribution channel are located on one side of the centroid of the box body, a first slag channel is arranged on the outer side of the end surface of one cylinder of the box body and is in communication with the end surface of the corresponding cylinder, a second slag channel is arranged on the end surface of another cylinder of the box body and is in communication with the end surface of the corresponding cylinder, and a slag ladle cavity is located on the outer side of the multi-layer structure of the box body and is in communication with the closing surface of the multi-layer structure of the box body. The pouring head is arranged on the ridge plate in the box body, the molten aluminum is guided to flow into each die casting cavity space quickly and relatively uniformly, and the quality and efficiency of the die casting of the box body are ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of casting mold, in particular to a box pouring structure. BACKGROUND

[0002] Generally, when designing the pouring system, the pouring system is usually distributed according to the amount of liquid in each region of the die casting part, and the number and position of the runner is determined to make the aluminum liquid evenly distributed into the die casting cavity, so that the die casting product avoids defects such as pores and sand inclusion. When the aluminum liquid flows evenly into the die casting cavity, the flow rate of the aluminum liquid and its cooling speed will make the strength of each region of the formed die casting part have certain difference, and for the right box of a two-cylinder engine, its structure is similar to a tubular structure with a partition plate in the middle, and each die casting region is a wing plate structure. The conventional pouring gate set on any joint surface of the box cannot guide the aluminum liquid to fill each wing plate die casting cavity, and the long flow path also causes the aluminum liquid to cool too early, resulting in hollowing and large bubbles, which causes the die casting to fail. SUMMARY

[0003] In view of the above defects of the prior art, the purpose of the present application is to provide a box pouring structure, which sets a pouring gate on the middle ridge plate opposite the middle partition plate in the box, guides the aluminum liquid to flow quickly and relatively uniformly into each die casting cavity space, and completes the die casting of the box.

[0004] The purpose of the present application is achieved by the following technical scheme:

[0005] A box pouring structure, comprising: a feeding part and a discharging part;

[0006] The feeding part comprises:

[0007] a pouring head;

[0008] a flow distribution channel in communication with the pouring head and having an arc-shaped cross section;

[0009] a first flow distribution channel in communication at a head end with the flow distribution channel and at a tail end with the outside of the middle ridge plate of the box and located on the outside of a certain cylinder of the box;

[0010] a second flow distribution channel in communication at a head end with the lower end surface of the flow distribution channel and at a tail end with the outside of the middle ridge plate of the box and located on the outside of the multi-layer structure of the box;

[0011] a third flow distribution channel in communication at a head end with the lower end surface of the flow distribution channel and at a tail end with the outside of the middle ridge plate of the box and located on the outside of the multi-layer structure of the box; the first, second and third flow distribution channels are all located on one side of the center of gravity of the box;

[0012] The discharging part comprises:

[0013] The first slag channel is arranged outside the end face of one cylinder of the box body and communicates with the end face of the corresponding cylinder.

[0014] The second slag channel is arranged outside the end face of the other cylinder of the box body and communicates with the end face of the corresponding cylinder.

[0015] The ladle cavity is located outside the multi-layer structure of the box body and communicates with the closing face of the multi-layer structure of the box body.

[0016] Further, the first flow dividing channel comprises:

[0017] The first flow guiding section communicates with the lower outer face of the flow dispersing channel at the head end, and the two side faces and the upper face are rounded and transitioned;

[0018] The first flow expanding section is in the shape of a trapezoid in the top view, and the smaller head end of the cross section communicates with the tail end of the first flow guiding section, and the lower face is a flat face and smoothly transitions with the lower face of the first flow guiding section;

[0019] The first flow guiding section is in the shape of a trapezoid in the top view, and the cross section is in the shape of a trapezoid; the larger head end of the cross section communicates with the tail end of the first flow expanding section, and the lower face is flush with the lower face of the first flow expanding section;

[0020] The first flow guiding section is in the shape of a trapezoid in the top view, and the cross section is in the shape of a trapezoid; the larger head end of the cross section communicates with the tail end of the first flow expanding section, and the lower face is flush with the lower face of the first flow expanding section;

[0021] Further, the first flow dividing channel further comprises a flow increasing cavity; the flow increasing cavity is arranged on the lower faces of the first flow guiding section and the first flow expanding section, the first flow guiding section and the first flow expanding section expand the area of the cross section, and the cavity end face communicates with the center ridge plate of the box body.

[0022] Further, the lower faces of the first flow guiding section, the first flow expanding section and the first flow guiding section are attached to the surface of the mold closing member of the corresponding mold closing structure of the cylinder.

[0023] Further, the second flow dividing channel comprises:

[0024] The second necking section communicates with the lower outer face of the flow dispersing channel at the head end, and the head end lower face smoothly transitions with the lower end face of the flow dispersing channel; the cross section area of the second necking section decreases with the increase of the distance from the flow dispersing channel; and the four edges of the second necking section are rounded.

[0025] The second flow guiding section smoothly transitions and communicates with the tail end of the second necking section at the head end; and the four edges of the second flow guiding section are rounded.

[0026] The second flow expanding section is in the shape of a trapezoid in the top view, and the smaller head end of the cross section communicates with the tail end of the second flow guiding section; and the four edges of the second flow expanding section are rounded.

[0027] The second flow guide section is trapezoidal in plan view and is isosceles trapezoidal in cross section. The head end of the second flow guide section is communicated with the second flow expanding section. The four edges of the second flow guide section are rounded.

[0028] The second flow guide section is trapezoidal in plan view and is isosceles trapezoidal in cross section. The head end of the second flow guide section is communicated with the second flow expanding section. The four edges of the second flow guide section are rounded.

[0029] Further, the third flow channel comprises:

[0030] The third flow guide section is communicated with the outer side surface of the lower part of the flow dispersing channel. The lower surface of the head end of the third flow guide section is smoothly connected with the lower end surface of the flow dispersing channel. The cross sectional area of the third flow guide section decreases with the distance from the flow dispersing channel. The four edges of the third flow guide section are rounded.

[0031] The first flow channel has the same structure as the second flow channel. The head end of the first flow channel is communicated with the third flow guide section. The tail end of the first flow channel is communicated with the outer side surface of the ridge plate in the box body and is located on the outer side surface of the outer convex structure of the multi-layer structure of the box body.

[0032] The second flow channel has the same structure as the second flow channel. The head end of the second flow channel is communicated with the third flow guide section. The tail end of the second flow channel is communicated with the outer side surface of the ridge plate in the box body and is located on the outer side surface of the multi-layer structure of the box body.

[0033] Further, the third flow channel further comprises:

[0034] The third flow channel has the same structure as the second flow channel. The head end of the third flow channel is communicated with the third flow guide section. The tail end of the third flow channel is communicated with the outer side surface of the ridge plate in the box body and is located on the outer side surface of the outer convex structure of the box body.

[0035] The fourth flow channel has the same structure as the second flow channel. The head end of the fourth flow channel is communicated with the third flow guide section and is located on the outer side surface of the wing-shaped structure of the box body. The tail end of the fourth flow channel is communicated with the wing-shaped structure of the box body. The communication area of the fourth flow channel with the box body is not coplanar with the communication area of the third flow channel with the box body.

[0036] Further, the lower surface of the third flow channel and the side surface of the fourth flow channel are in close contact with the mold closing member surface of the mold closing structure arranged thereon.

[0037] Further, the first slag channel comprises a plurality of slag cavities arranged on the end surface and around the cylinder body of the first slag channel. The plurality of slag cavities are communicated and then communicated through the lead-out channel. The lead-out channel is arranged on the mold closing surface of the box body.

[0038] The second slag channel has the same structure as the first slag channel.

[0039] Further, the two slag ladle cavities are communicated, and upper surfaces of the slag ladle cavities are attached to surfaces of the mold closing members of the mold closing structure arranged at the positions.

[0040] The box pouring setting method comprises the following steps: arranging a plurality of liquid inlet ridge cavities in a mold, wherein the liquid inlet ridge cavities are arranged on the outside of one or more of the following structures of the die casting box structure: the outer convex structure, the outer wing plate structure, the multi-layer structure and the thickened structure; and the included angle between the liquid inlet ridge cavity and the corresponding communicated die casting box middle ridge plate cavity is not more than 20 degrees.

[0041] The liquid outlet nozzle of the feeding part for the aluminum liquid is arranged in a plate type; the plate surface of the liquid outlet nozzle of the feeding part is parallel to the plate surface of the liquid inlet ridge cavity and is communicated therewith.

[0042] The feeding part is arranged in the mold, the feeding part is communicated with the cylinder end surface of the die casting box in the mold, and the communication position is dislocated from the middle ridge plate cavity of the die casting box in the mold.

[0043] Further, a reinforced flow channel for the aluminum liquid is arranged; the reinforced flow channel is communicated with the outer convex part and the wing plate part of the die casting box structure; the liquid outlet nozzle of the reinforced flow channel is arranged in a plate type and is vertically communicated with the surface of the outer convex part and the wing plate part of the die casting box structure.

[0044] The slag ladle cavity is arranged in the mold, and the slag ladle cavity is communicated with the outer convex part or the wing plate part of the die casting box structure.

[0045] Due to the adoption of the above technical scheme, the present application has the following advantages:

[0046] 1. The aluminum liquid flows from the middle ridge plate of the box to the ridge plate structure of the box through multiple paths, and then flows from the plate structure to the tubular structure on both sides of the plate structure, thereby reducing the length of the aluminum liquid flow path, increasing the flow cross section of the aluminum liquid, keeping the aluminum liquid in a high-temperature state, and flowing to each corner of the mold cavity, thereby reducing the probability of defects such as pores and sand inclusion in the edge area and the tail turning area of the box.

[0047] 2. Two slag channels correspond to two piston cylinder areas respectively, so as to ensure that the aluminum liquid in the cylinder area is fully filled and the structural strength of the cylinder area is ensured; meanwhile, the design can discharge the gas in the mold cavity and the slag formed in the pouring process during pouring, reduce the amount of slag remaining in the die casting cavity, and improve the product quality.

[0048] Other advantages, objects, and features of the present application will be set forth in part in the following specification, and in part will be apparent from the study of the following specification, or can be learned from the practice of the present application. The advantages of the present application will be realized and attained by means of the instrumentalities pointed out in the written description and claims hereof. BRIEF DESCRIPTION OF DRAWINGS

[0049] The drawings of the present application are as follows:

[0050] Figure 1 This is a front view schematic diagram of the feeding section and the discharging section in the embodiment.

[0051] Figure 2 for Figure 1 A schematic diagram of the structure at section AA in the middle.

[0052] Figure 3 for Figure 1 Schematic diagram of the structure at the BB section.

[0053] Figure 4 for Figure 1 Enlarged structural diagram at point C.

[0054] Figure 5 This is a three-dimensional structural diagram of the feeding section and the discharging section in the embodiment.

[0055] Figure 6 This is a first three-dimensional structural diagram of the box and the feeding section in the embodiment.

[0056] Figure 7 This is a schematic diagram of the second three-dimensional structure of the box and the feeding section in the embodiment.

[0057] Figure 8 for Figure 7 Enlarged structural diagram at point D.

[0058] Figure 9 This is a three-dimensional structural diagram of the box and the discharge section in the embodiment.

[0059] Figure 10 This is a three-dimensional structural diagram of the feeding section and the mold closing structure in the embodiment.

[0060] Figure 11 for Figure 10 Enlarged structural diagram at point E in the middle.

[0061] In the diagram: 1. Sprue; 2. Diffuser; 31. First guide section; 32. First expansion section; 33. First diversion section; 34. First pouring section; 35. Flow enhancement cavity; 41. Second necking section; 42. Second guide section; 43. Second expansion section; 44. Second diversion section; 45. Second pouring section; 51. Third guide section; 52. First sub-sprue; 53. Second sub-sprue; 54. Third sub-sprue; 55. Fourth sub-sprue; 6. First slag channel; 7. Second slag channel; 8. Slag enclosure cavity; 9. Slag cavity; 10. Outlet channel; 11. Mold closing structure; 12. Box body; 121. Central ridge plate; 122. Multi-layer structure; 123. Outward convex structure; 124. Outer wing structure; 125. Cylinder body; 126. Thickened structure; 13. Liquid inlet ridge cavity. Detailed Implementation

[0062] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example

[0063] like Figures 1 to 11 As shown, according to the required die-cast box structure, multiple liquid inlet ridge cavities are set on the outer side of the ridge plate. The location of the liquid inlet ridge cavity is selected so that the outer side of the ridge plate is connected to or corresponds to one or more of the box's convex structure, outer wing plate structure, multi-layer structure, or thickened structure.

[0064] The liquid inlet ridge cavity should be kept as parallel as possible to the middle ridge plate to reduce the resistance when the aluminum liquid flows. In general design, the angle between the liquid inlet ridge cavity and the middle ridge plate cavity of the corresponding die-casting box is set to less than 20 degrees, and the two should transition smoothly.

[0065] The specific structure of the 12-cell inlet is as follows, including the inlet section and the outlet section;

[0066] The feeding section includes:

[0067] Topping 1;

[0068] The diffuser channel 2 is connected to the gating head 1 and has an arc-shaped cross-section;

[0069] The first branch channel is connected to the diffuser channel 2 at its head end and to the liquid inlet ridge cavity on the outside of the ridge plate 121 in the box 12 at its tail end. It is located on the outer side of a cylinder 125 in the box 12.

[0070] The second diversion channel has its head end connected to the lower end face of the diffuser channel 2, and its tail end connected to the liquid inlet ridge cavity on the outside of the ridge plate 121 in the box 12. It is located on the outer side of the multi-layer structure 122 of the box 12.

[0071] The third diversion channel has its head end connected to the lower end face of the diffuser channel 2, and its tail end connected to the liquid inlet ridge cavity on the outside of the ridge plate 121 in the box 12. It is located on the outer side of the multi-layer structure 122 of the box 12. The contact areas of the first diversion channel, the second diversion channel and the third diversion channel with the box 12 are all located on one side of the center of mass of the box 12.

[0072] The discharge section includes:

[0073] The first slag channel 6 is located on the outer side of the end face of a cylinder 125 of the box body 12 and is connected to the end face of the corresponding cylinder 125.

[0074] The second slag channel 7 is located on the end face of another cylinder 125 of the box body 12 and is connected to the end face of the corresponding cylinder 125.

[0075] The slag cavity 8 is located on the outer side of the multi-layer structure 122 of the box body 12 and is connected to the mating surface of the multi-layer structure 122 of the box body 12.

[0076] In this embodiment, the first diversion channel includes:

[0077] The first guide section 31 has its head end connected to the lower outer side of the diffuser channel 2, and its two sides are rounded to transition to the upper surface.

[0078] The first expansion section 32 is trapezoidal in top view. Its smaller front end is connected to the tail end of the first guide section 31. Its lower surface is a flat plate that smoothly transitions with the lower surface of the first guide section 31.

[0079] The first diversion section 33 has a trapezoidal shape when viewed from above, and its cross-section is also trapezoidal. Its larger head end is connected to the tail end of the first expansion section 32, and its lower surface is flush with the lower surface of the first expansion section 32.

[0080] The first irrigation section 34 has a trapezoidal top view and a rectangular cross-section. Its thickness is the same as the tail end thickness of the first drainage section 33. Its smaller head end is connected to the tail end of the first drainage section 33, and its larger tail end is connected to the liquid inlet ridge cavity outside the ridge plate 121 in the box 12.

[0081] The flow channel is expanded by the first expansion section 32, the flow channel is widened by the first diversion section 33 and the flow velocity is increased, and the first pouring section 34 corresponds to the liquid inlet ridge cavity on the outside of the middle ridge plate 121 of the box body 12, so as to achieve the purpose of diverting, pressurizing and equalizing the flow of aluminum liquid.

[0082] In this embodiment, the first diversion channel further includes a flow-enhancing cavity 35; the flow-enhancing cavity 35 is disposed on the lower surface of the first irrigation section 34 and the first drainage section 33, the first irrigation section 34 and the first drainage section 33 have an enlarged cross-sectional area, and the end face of the cavity is connected to the liquid inlet ridge cavity outside the ridge plate 121 in the box body 12.

[0083] The flow-enhancing cavity 35 can increase the cross-sectional area of ​​the aluminum liquid flow channel, thereby increasing the pouring speed and volume of the aluminum liquid.

[0084] In this embodiment, the lower surfaces of the first guide section 31, the first expansion section 32, and the first diversion section 33 are in contact with the molded parts surface of the corresponding cylinder body 125 molded structure 11.

[0085] This design reduces the structural design of the mold and makes it easier for the box 12 to be removed from the mold.

[0086] In this embodiment, the second diversion channel includes:

[0087] The second necked section 41 has its head end connected to the outer side of the lower part of the diffuser channel 2, and the lower surface of the head end smoothly transitions to the lower end surface of the diffuser channel 2; the cross-sectional area of ​​the second necked section 41 decreases as the distance from the diffuser channel 2 increases; the four edges of the second necked section 41 are rounded.

[0088] The head end of the second guide section 42 is smoothly connected to the tail end of the second necked section 41; the four edges of the second guide section 42 are rounded.

[0089] The second diffuser section 43, when viewed from above, is trapezoidal in shape, with its smaller front end connected to the rear end of the second guide section 42; the four edges of the second diffuser section 43 are rounded.

[0090] The second diversion section 44 is trapezoidal in top view and has an isosceles trapezoidal cross-section; its larger end is connected to the second expansion section 43; the four edges of the second diversion section 44 are rounded.

[0091] The second irrigation section 45 has a trapezoidal top view and a rectangular cross-section. Its thickness is the same as the thickness of the tail end of the second irrigation section 45. Its smaller head end is connected to the tail end of the second irrigation section 45, and its larger tail end is connected to the liquid inlet ridge cavity outside the ridge plate 121 in the box 12.

[0092] The design principle of the second flow channel is similar to that of the first flow channel. In addition, the flow rate of the aluminum liquid is controlled by the second necking section at the flow channel 2.

[0093] In this embodiment, the third diversion channel includes:

[0094] The third guide section 51 has its head end connected to the outer side of the lower part of the diffuser channel 2, and the lower surface of the head end smoothly transitions to the lower end surface of the diffuser channel 2; the cross-sectional area of ​​the third guide section 51 decreases as the distance from the diffuser channel 2 increases; the four edges of the third guide section 51 are rounded.

[0095] The first sub-sprue 52 (enhanced flow channel) has the same structure as the second sub-sprue; its head end is connected to the third guide section 51; and its tail end is connected to the liquid inlet ridge cavity outside the ridge plate 121 in the box body 12, located on the outer side of the convex structure 123 of the multi-layer structure 122 of the box body 12.

[0096] The second sub-sprue 53 (enhanced flow channel) has the same structure as the second sub-flow channel; its head end is connected to the third guide section 51; and its tail end is connected to the liquid inlet ridge cavity outside the ridge plate 121 in the box body 12, located on the outer side of the multi-layer structure 122 of the box body 12.

[0097] Based on the structural characteristics of the box 12, additional gating channels are added to the more complex parts of the box 12 where the molten aluminum flows through many bends.

[0098] In this embodiment, the third diversion channel further includes:

[0099] The third sub-sprue 54 (enhanced flow channel) is connected at the head end to the middle of the second sub-sprue 53 and at the tail end to the liquid inlet ridge cavity on the outside of the ridge plate 121 in the box body 12. It is located on the outer side of the convex structure 123 of the box body 12.

[0100] The fourth sub-sprue 55 (enhanced flow channel) is connected at the middle of the second sub-sprue 53 and is located on the outer side of the outer wing structure 124 of the box body 12. The tail end is connected to the outer wing structure 124 of the box body 12. The connection area between the fourth sub-sprue 55 and the box body 12 is not coplanar with the connection area between the third sub-sprue 54 and the box body 12.

[0101] The third and fourth sub-sprues 54 and 55 are designed with special structures for the box 12 to ensure that it is filled completely.

[0102] In this embodiment, the lower surface of the third sprue 54 and the side surface of the fourth sprue 55 are both in contact with the mold-closing component surface of the mold-closing structure 11 located therein.

[0103] This design reduces the structural design of the mold and makes it easier for the box 12 to be removed from the mold.

[0104] In this embodiment, the first slag channel 6 includes a plurality of slag cavities 9 disposed on the end face and around the cylinder body 125, and the plurality of slag cavities 9 are connected to each other through an outlet channel 10; the outlet channel 10 is disposed on the mold closing surface of the box body 12.

[0105] The second slag channel 7 has the same structure as the first slag channel 6.

[0106] In this embodiment, there are two slag-encasing cavities 8, which are connected to each other; the upper surface of the slag-encasing cavity 8 is in contact with the surface of the mold-closing component of the mold-closing structure 11 located therein.

[0107] For areas with complex structures in the box 12, an independent slag chamber 8 is set up to encourage the flow of molten aluminum to this area. At the same time, it ensures that the molten aluminum can fill the mold cavity at this location, while aluminum slag and other materials can be discharged from the structural area of ​​the box 12, thus ensuring the structural strength and quality of this area.

[0108] In this embodiment, the mold is closed, and molten aluminum is injected into the mold through the sprue 1 area. The molten aluminum flows through the diffuser 2 to each branch channel and flows into the liquid inlet ridge cavity corresponding to the outer side of the central ridge plate 121 of the box body 12. Then it flows into the pipes on both sides of the central ridge plate. The molten aluminum flows to each area with a shorter path, and the overall flow area is large. At the same time, under the action of the first slag channel 6, the second slag channel 7 and the slag chamber 8, the molten aluminum flows to the corresponding cylinder 125 area and the more complex area on the box body 12. Finally, aluminum slag and other impurities are discharged into the first slag channel 6, the second slag channel 7 and the slag chamber 8.

[0109] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A box-type gating structure, characterized in that, include: Feeding section and discharging section; The feeding section includes: Topping; The diffuser channel, connected to the gating head, has an arc-shaped cross-section; The first branch channel is connected to the diffuser channel at its head end and to the outer side of the ridge plate in the housing at its tail end. It is located on the outer side of a certain cylinder in the housing. The second branch channel is connected at its head end to the lower end face of the diffuser channel and at its tail end to the outer side of the ridge plate in the box body. It is located on the outer side of the multi-layer structure of the box body. The third diversion channel has its head end connected to the lower end face of the diffuser channel and its tail end connected to the outer side of the ridge plate in the box body. It is located on the outer side of the multi-layer structure of the box body. The contact areas of the first diversion channel, the second diversion channel and the third diversion channel with the box body are all located on one side of the center of mass of the box body. The discharge section includes: The first slag channel is located on the outer side of the end face of one of the cylinders in the box and is connected to the end face of the corresponding cylinder. The second slag channel is located on the end face of another cylinder in the box and is connected to the end face of the corresponding cylinder. The slag cavity is located on the outer side of the multi-layered structure of the box body and is connected to the mating surface of the multi-layered structure of the box body. The first branch channel includes: The first guide section has its head end connected to the lower outer side of the diffuser channel, and its two sides are rounded to transition to the upper surface. The first expansion section, when viewed from above, is trapezoidal in shape. Its smaller front end is connected to the rear end of the first guide section, and its lower surface is a flat plate that smoothly transitions with the lower surface of the first guide section. The first diversion section, when viewed from above, is trapezoidal in shape, and its cross-section is also trapezoidal. Its larger head end is connected to the tail end of the first expansion section, and its lower surface is flush with the lower surface of the first expansion section. The first irrigation section, when viewed from above, is trapezoidal in shape and has a rectangular cross-section. Its thickness is the same as that of the tail end of the first drainage section. Its smaller head end is connected to the tail end of the first drainage section, and its larger tail end is connected to the outer side of the ridge plate in the box. The first diversion channel further includes a flow-enhancing cavity; the flow-enhancing cavity is disposed on the lower surface of the first irrigation section and the first drainage section, the first irrigation section and the first drainage section have enlarged cross-sectional areas, and the end face of the cavity is connected to the ridge plate in the box body; The second diversion channel includes: The second necked section has its head end connected to the outer surface of the lower part of the diffuser channel, and the lower surface of the head end smoothly transitions to the lower end face of the diffuser channel; the cross-sectional area of ​​the second necked section decreases as the distance from the diffuser channel increases; the four edges of the second necked section are rounded. The head end of the second guide section smoothly transitions to the tail end of the second constriction section; the four edges of the second guide section are rounded. The second diffuser section, when viewed from above, is trapezoidal in shape, with its smaller front end connected to the rear end of the second guide section; the four edges of the second diffuser section are rounded. The second diversion section, when viewed from above, is trapezoidal in shape, with an isosceles trapezoidal cross-section; its larger end is connected to the second expansion section; the four edges of the second diversion section are rounded. The second irrigation section, when viewed from above, is trapezoidal in shape and has a rectangular cross-section. Its thickness is the same as that of the tail end of the second drainage section. Its smaller head end is connected to the tail end of the second drainage section, while its larger tail end is connected to the outer side of the ridge plate in the box.

2. The box-type casting structure according to claim 1, characterized in that, The third diversion channel includes: The third guide section has its head end connected to the lower outer surface of the diffuser channel, and the lower surface of the head end smoothly transitions to the lower end face of the diffuser channel; the cross-sectional area of ​​the third guide section decreases as the distance from the diffuser channel increases; the four edges of the third guide section are rounded. The first sub-sprue has the same structure as the second sub-sprue; its head end is connected to the third guide section; and its tail end is connected to the outer side of the ridge plate in the box body, located on the outer side of the multi-layer convex structure of the box body. The second sub-sprue has the same structure as the second sub-flow channel; its head end is connected to the third guide section; and its tail end is connected to the outer side of the ridge plate in the box body, located on the outer side of the multi-layer structure of the box body.

3. The box-type casting structure according to claim 1, characterized in that, The third diversion channel also includes: The third sub-sprue is connected at the middle of the second sub-sprue and at the outer side of the ridge plate in the box body. It is located on the outer side of the convex structure of the box body. The fourth sub-sprue has its head end connected to the middle of the second sub-sprue and is located on the outer side of the outer wing structure of the box body. Its tail end is also connected to the outer wing structure of the box body. The connection area between the fourth sub-sprue and the box body is not coplanar with the connection area between the third sub-sprue and the box body.

4. The box-type casting structure according to claim 1, characterized in that, The first slag channel includes several slag cavities disposed on the end face and around the cylinder body, and the several slag cavities are connected to each other through an outlet channel; the outlet channel is disposed on the mold closing surface of the box body; The second slag channel has the same structure as the first slag channel.

5. The box-type casting structure according to claim 1, characterized in that, The slag cavities are two and connected; the upper surface of each slag cavity is in contact with the surface of the mold fitting of the mold fitting structure located therein.

6. The box-type casting structure according to claim 1, characterized in that, Multiple liquid inlet ridges are provided in the mold. The liquid inlet ridges are located on the outer side of one or more of the convex structure, outer wing plate structure, multi-layer structure, and thickened structure of the die-casting box structure. The angle between the liquid inlet ridge and the corresponding connected middle ridge plate cavity of the die-casting box does not exceed 20 degrees. The outlet nozzle of the feed section through which the molten aluminum flows is plate-shaped; the plate surface of the outlet nozzle of the feed section is parallel to and connected to the plate surface of the inlet ridge cavity. A discharge section is set in the mold, which is connected to the cylinder end face of the die-casting box in the mold. The connection point is misaligned with the middle ridge plate cavity of the die-casting box in the mold.

7. The box-type casting structure according to claim 6, characterized in that, It is also provided with an enhanced flow channel for the flow of molten aluminum; the enhanced flow channel is connected to the outer protrusion and wing plate of the die-casting box structure; the liquid outlet of the enhanced flow channel is plate type and is perpendicularly connected to the surface of the outer protrusion and wing plate of the die-casting box structure. A slag cavity is provided in the mold, and the slag cavity is connected to the outward protrusion or wing plate of the die-casting box structure.

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