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CN-224222703-U - High-pressure casting runner system of large-area hollow structural member

CN224222703UCN 224222703 UCN224222703 UCN 224222703UCN-224222703-U

Abstract

The utility model relates to the technical field of high-pressure die casting, in particular to a high-pressure casting runner system of a large-area hollow structural member, which comprises a fixed die sleeve plate, a fixed die core fixed in the middle of the fixed die sleeve plate, a forming cavity arranged in the middle of the fixed die core, a main runner communicated with one side of the forming cavity, a slag discharging part communicated with the periphery of the forming cavity and an exhaust part communicated with the outer side of the slag discharging part, wherein an inner runner of the main runner is arranged at the bottom of the peripheral surface of the forming cavity, and the forming cavity comprises a circular cavity and a special-shaped cavity which are integrally formed. According to the scheme, breakthrough is realized from the aspects of molding quality and efficiency by optimizing the placement positions of the main pouring gate and the inner pouring gate, the risk of molding defects is reduced, the filling path of molten metal is shortened, the filling time is saved, the die casting period is optimized by minimum filling distance, and the production efficiency is remarkably improved.

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 (5)

  1. 1. The high-pressure casting runner system of the large-area hollow structural part is characterized by comprising a fixed die sleeve plate, a fixed die core fixed in the middle of the fixed die sleeve plate, a forming cavity arranged in the middle of the fixed die core, a main runner communicated with one side of the forming cavity, a slag discharging part communicated with the periphery of the forming cavity and an exhaust part communicated with the outer side of the slag discharging part, wherein an inner runner of the main runner is arranged at the bottom of the peripheral surface of the forming cavity, the forming cavity comprises a circular cavity and a special-shaped cavity which are integrally formed, the centers of the forming cavity and the special-shaped cavity are of a deep cavity structure, and the bottoms of the forming cavity and the special-shaped cavity are of a hollow structure.
  2. 2. The high-pressure casting runner system of the large-area hollowed-out structural member according to claim 1, wherein the slag discharging part comprises a slag ladle arranged on the circumferential outer side of the forming cavity, and the slag ladle is of a cavity structure.
  3. 3. The high-pressure casting runner system of the large-area hollowed-out structural part according to claim 2, wherein the exhaust part comprises an exhaust plate positioned outside the slag ladle, and a connecting groove is arranged between the exhaust plate and the slag ladle for communication.
  4. 4. The high pressure casting runner system of a large area hollow out structural member as set forth in claim 3 wherein said vent plate is wave-shaped.
  5. 5. The high pressure casting runner system of a large area hollow structure according to claim 2, wherein the slag discharging part further comprises a free slag ladle arranged at the circumferential outer side of the forming cavity, and the free slag ladle is not communicated with the air discharging plate.

Description

High-pressure casting runner system of large-area hollow structural member Technical Field The utility model relates to the technical field of high-pressure die casting, in particular to a high-pressure casting runner system of a large-area hollow structural member. Background High-pressure casting is used as a high-efficiency and high-precision metal forming process and is widely applied in various fields. From the manufacture of automobile parts to the production of precision parts in the aerospace field, high-pressure casting plays an irreplaceable role by virtue of the advantages of being capable of rapidly forming complex structural parts, high in product size precision, good in surface quality and the like. The pouring system for high-pressure casting is used as a key part for guiding metal liquid to flow into a die cavity of the die in the high-pressure casting process, pouring channels in the pouring system are channels for allowing liquid metal to enter the die cavity, and the pouring system has the effects of controlling the flowing direction and speed of the liquid metal, ensuring that the liquid metal stably and orderly fills the die cavity, avoiding the defects of under casting, cold insulation and the like, reducing material waste, shortening a forming period, protecting the die and prolonging the service life of the die due to reasonable pouring channel design, and in some traditional pouring channel designs, in order to realize uniform filling of the metal liquid into the die cavity, generally adopting a pouring channel layout of a symmetrical structure, such as a die casting die and a die casting method (publication number: CN 118455480B) in the prior art, and simultaneously injecting the metal liquid into the die cavity by utilizing a first pouring channel and a second pouring channel symmetrically arranged at two sides of the die cavity so as to ensure the forming quality of a die casting product due to the fact that the metal liquid at two sides can be converged at the middle position of the die cavity, and the stroke of the metal liquid in the die cavity is shortened, and the whole die cavity can be filled with the whole die cavity in a short time, and the die casting product is ensured, and the molding quality of a die casting product still has the following technical problems: Although the symmetrical pouring gate layout in the prior art optimizes the filling effect of the metal liquid to a certain extent, when dealing with special-shaped die casting products, such as die castings with deep cavities and large-area hollow structures at the bottoms of the deep cavities, the symmetrical pouring gate layout in the prior art can cause the problem that the metal liquid is fast at the position with large filling product cavity space (such as the circumferential position of the cavity), slow at the position with narrow product cavity space (such as the bottom with the hollow structures of the cavity), and therefore, when the metal liquid at two sides is filled, butted and combined, the temperature is different, the two metal liquids are not completely fused, so that the butt joint position is easy to generate joints or cracks to form filling defects, and when the bottom of the deep cavity of the die casting is filled, the flow path of the metal liquid is discontinuous due to the large-area hollow structures at the bottoms of the die casting, the flow resistance is larger, the problem that the temperature of the metal liquid at two sides is reduced, the filling and forming defects, the internal tissue loosening and the like are easy to occur during the combination, and the forming quality of the die casting is seriously affected. Disclosure of utility model The utility model provides a high-pressure casting runner system of a large-area hollow structural member, which can solve the problems that when a runner of a die casting mold in the prior art is applied to an asymmetric die casting with a deep cavity structure, the molding defect and internal tissue of the die casting are easy to cause, and the molding quality is reduced. The high-pressure casting runner system of the large-area hollow structural part comprises a fixed die sleeve plate, a fixed die core fixed in the middle of the fixed die sleeve plate, a forming cavity arranged in the middle of the fixed die core, a main runner communicated with one side of the forming cavity, a slag discharging part communicated with the periphery of the forming cavity and an exhaust part communicated with the outer side of the slag discharging part, wherein an inner runner of the main runner is arranged at the bottom of the peripheral surface of the forming cavity, the forming cavity comprises a circular cavity and a special-shaped cavity which are integrally formed, the centers of the forming cavity and the special-shaped cavity are of a deep cavity structure, and the bottoms of the forming cavity and the special-shaped cavity are of a hollow structur