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CN-224222702-U - Annular runner die casting die of high pressure casting product

CN224222702UCN 224222702 UCN224222702 UCN 224222702UCN-224222702-U

Abstract

The utility model relates to the technical field of high-pressure die casting dies, in particular to an annular runner die casting die for a high-pressure casting product, which comprises a movable die sleeve plate, a movable die core fixed in the center of the movable die sleeve plate, a forming cavity arranged in the middle of the movable die core and an annular runner positioned at the periphery of the forming cavity, wherein one end of the forming cavity is provided with an annular cooling fin rib, the annular runner is provided with a plurality of inner pouring gates, the inner pouring gates are annularly arranged on the periphery of the cooling fin rib, and the opening directions of the inner pouring gates are perpendicular to the arrangement direction of the cooling fin rib. The scheme adopts annular flow channels and multi-inner gate annular layout, so that metal liquid is synchronously injected into the cooling fin rib cavities at multiple points, the buffer of a laminated structure is weakened, the filling is accelerated, the molten metal is prevented from solidifying and stagnating in advance, meanwhile, the inner gate design perpendicular to the arrangement direction of the cooling ribs can reduce the pressure loss in die casting, ensure the complete molding of the ribs, and greatly improve the die casting quality.

Inventors

  • DENG QIANG

Assignees

  • 重庆渝江岚峰动力部件有限公司

Dates

Publication Date
20260512
Application Date
20250527

Claims (6)

  1. 1. The annular runner die casting die for the high-pressure casting product is characterized by comprising a movable die sleeve plate, a movable die core fixed in the center of the movable die sleeve plate, a molding cavity arranged in the middle of the movable die core and an annular runner positioned at the periphery of the molding cavity, wherein one end of the molding cavity is provided with an annular cooling fin rib, the annular runner is provided with a plurality of inner pouring gates, the inner pouring gates are annularly arranged on the periphery of the cooling fin rib, and the opening directions of the inner pouring gates are perpendicular to the arrangement direction of the cooling fin rib.
  2. 2. The annular runner die casting mold for a high pressure casting product as claimed in claim 1, wherein the molding cavity is further provided with a pair of side exhaust grooves at one end thereof, which is far away from the fin ribs, and is disposed opposite to the annular runner.
  3. 3. The die casting mold for a high pressure casting product according to claim 2, wherein a lateral cavity is provided on one side of the molding cavity, lateral flow passages are further communicated with the lateral surfaces of the annular flow passages, and the openings of the lateral flow passages are provided at the openings of the lateral cavities.
  4. 4. The annular runner die casting die for high pressure casting products as claimed in claim 3, wherein the side of the forming cavity far away from the lateral cavity is provided with an inclined air passage, an edge side air exhaust groove is arranged outside the inclined air passage, and the opening of the edge side air exhaust groove is arranged at the opening of the inclined air passage.
  5. 5. The annular runner die casting mold for a high pressure casting product as claimed in claim 4, wherein said pair of side vent grooves and said side vent groove are further provided with a ladle at their mouth portions.
  6. 6. The annular runner die casting mold for a high pressure casting product as claimed in claim 5, wherein said pair of side vent grooves and said side vent groove are further provided with wavy vent plates.

Description

Annular runner die casting die of high pressure casting product Technical Field The utility model relates to the technical field of high-pressure die casting dies, in particular to an annular runner die casting die for a high-pressure casting product. Background The high-pressure casting is used as a high-efficiency metal forming process, is widely applied to the fields of automobiles, aerospace, electronics and the like, and is particularly suitable for mass production of complex structural members. The die casting die is used as core equipment for high-pressure casting, and the molding quality and the production efficiency of the die casting are directly determined by a runner system, an exhaust structure and a cavity design. For the die casting with the cooling fin rib structure, as the cooling fin ribs are densely distributed and are in a large quantity, the cooling fin ribs are easy to fill incompletely in the die casting process, so that the structural design requirement on the die is more severe, the prior art, namely a die casting die for a cylinder head and a box body of a gasoline engine (publication number: CN 106077571A), discloses a die casting die for the box body with the cooling fin ribs, and the die casting filling of the cooling fin is realized by arranging a runner on one side of a cavity with cooling fins. However, the following technical problems still exist in the prior art: Because the quantity of fin muscle is many, distribute intensively, and the die cavity shape of fin muscle presents one deck layer by layer stacked structure, the filling distance has been prolonged, and prior art's runner sets up in the side of fin muscle die cavity, the metal liquid can only be with one direction unidirectional filling, when the metal liquid under the high pressure effect fast press the in-process in the fin muscle die cavity, the metal liquid is easily by stacked structure buffering deceleration, stacked structure has increased the die cavity area simultaneously, it is too fast to lead to the metal liquid cooling heat transfer solidification that gets into the die cavity at first, the metal liquid has not contacted the inside top of fin muscle die cavity or terminal just stagnates, make the shape of fin muscle unable complete shaping, thereby reduce die casting shaping quality. Disclosure of utility model The utility model provides an annular runner die-casting die for a high-pressure casting product, which can solve the problem that the cooling rib cannot be completely molded easily when the die-casting die in the prior art is used for die-casting a product with a cooling rib structure, so that the die-casting molding quality is reduced. The application provides a technical scheme that the annular runner die casting die for a high-pressure casting product comprises a movable die sleeve plate, a movable die core fixed in the center of the movable die sleeve plate, a forming cavity arranged in the middle of the movable die core and an annular runner positioned at the periphery of the forming cavity, wherein one end of the forming cavity is provided with an annular cooling fin rib, the annular runner is provided with a plurality of inner pouring gates, the inner pouring gates are annularly arranged on the periphery of the cooling fin rib, and the opening directions of the inner pouring gates are perpendicular to the arrangement direction of the cooling fin rib. The beneficial effects are that: 1. The multi-pouring gate annular arrangement ensures the die casting molding quality. The annular runner is encircled into the die cavity periphery and is set up, a plurality of in-gates are annular and distribute on the periphery of the fin muscle of shaping chamber, make metal liquid when filling fin muscle structure, can follow the circumference of fin muscle and diversified synchronous injection fin muscle die cavity, compare the unilateral unidirectional mode of filling of prior art, this design presents the effect of multiple spot propulsion with the mode of filling, weaken the lamination structure of fin muscle and to the buffer effect of metal liquid flow, in unit time, the metal liquid that fills into in the fin muscle die cavity is more, it is more saturated to fill, thereby avoid getting into the metal liquid cooling heat transfer solidification of die cavity at first and be too fast, and lead to the metal liquid not to fill the terminal condition just stagnant flow of fin muscle die cavity inside yet, effectively guarantee the fin muscle shaping completely, promote die casting shaping quality. 2. Because the runner sets up in the circumference of fin muscle, the oral area orientation of header is perpendicular with the direction of arranging of fin muscle for the inflow route of inwards filling of metal liquid is perpendicular with the range upon range of direction of fin muscle, and each layer of rib can be filled in step with radial mode to metal liquid, compares in prior art with the unilater