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CN-121972628-A - Die casting die with lower oblique-drawing double-side retaining structure

CN121972628ACN 121972628 ACN121972628 ACN 121972628ACN-121972628-A

Abstract

The invention relates to a die casting die with a lower oblique-drawing double-side retaining structure, which comprises an upper die holder and a lower die holder, wherein an upper die core and a lower die core are arranged between the upper die holder and the lower die holder, a die cavity is arranged between the upper die core and the lower die core, a slide seat capable of sliding obliquely is arranged in the lower part of the lower die holder, a lower oblique drawing block which penetrates through the lower die core and is inserted into the die cavity in an inclined manner is arranged at the upper end of the slide seat, an auxiliary insert which is in butt joint with the lower oblique drawing block is arranged at the lower end of the upper die core, a lower base is arranged at the bottom of the lower die holder, a lower die plate is arranged at the lower end of the lower base, a lower core-pulling oil cylinder connected with the slide seat is arranged on the lower die plate, retaining blocks which transversely slide are respectively embedded in two sides of the upper end of the lower base, and retaining oil cylinders which are connected with the retaining blocks in a one-to-one correspondence manner are arranged at two sides of the lower base. According to the invention, the double-side retaining mechanism is arranged to improve retaining stability and product forming precision.

Inventors

  • GU JIAYI
  • ZHU ZHAOJUN
  • LIU BING
  • ZHANG LILI
  • Zhou yurun

Assignees

  • 浙江辉旺机械科技股份有限公司

Dates

Publication Date
20260505
Application Date
20251226

Claims (6)

  1. 1. The die casting die with the lower oblique-drawing double-side retaining structure comprises an upper die holder (1) and a lower die holder (6), an upper die core (2) and a lower die core (5) which are stacked up and down are arranged between the upper die holder (1) and the lower die holder (6), and a die cavity (4) is arranged between the upper die core (2) and the lower die core (5), and the die casting die is characterized in that a slide seat (11) which slides obliquely is arranged in the lower part of the lower die holder (6), a lower oblique-drawing block (12) which penetrates through the lower die core (5) and is obliquely inserted into the die cavity (4) is arranged at the upper end of the slide seat (11), an auxiliary insert (3) which is in butt joint with the lower oblique-drawing block (12) is arranged at the lower end of the upper die holder (2), a lower base (7) is arranged at the bottom of the lower die holder (6), a lower die base (7) is arranged at the lower end of the lower base (7), a lower die plate (8) is arranged on the lower die plate (8), a lower cylinder (10) which is connected with the slide seat (11), two side retaining blocks (14) are arranged on two sides of the upper end of the lower base (7) respectively, and one end of the two side retaining blocks (14) are correspondingly arranged at the two sides of the base (14).
  2. 2. The die casting die with the downward inclined drawing double-side retaining structure according to claim 1, wherein the upper part of one end of the retaining block (14) is embedded and provided with a wear-resistant block (16), and the upper end face of the wear-resistant block (16) is flush with the upper end face of the retaining block (14).
  3. 3. The die casting die with the lower oblique drawing double-side retaining structure according to claim 1, wherein the front end of the lower part of the sliding seat (11) is provided with a horizontal extension rod (17), the front end of the lower base (7) is provided with a straight-line notch (19) for the extension rod (17) to pass through, and the upper side and the lower side of the front end of the lower base (7) are respectively provided with two infrared sensors (18) matched with the extension rod (17).
  4. 4. The die casting die with the lower oblique-drawing double-side retaining structure according to claim 1, wherein a concave cavity (20) is formed in the bottom of the lower base (7), the lower core-pulling oil cylinder (10) is arranged in the concave cavity (20), a top plate assembly (9) is arranged in the concave cavity (20), the top plate assembly (9) is sleeved outside the lower core-pulling oil cylinder (10), and a top rod (13) inserted into the die cavity (4) is vertically arranged on the top plate assembly (9).
  5. 5. The die casting die with the lower oblique-drawing double-side retaining structure according to claim 4, wherein guard plates (21) are arranged on two sides of the lower core-pulling oil cylinder (10) inside the concave cavity (20), and the top plate assembly (9) is sleeved outside the two guard plates (21).
  6. 6. The die casting die with the downward inclined drawing double-side retaining structure according to claim 1, wherein two sides of the upper end of the lower base (7) are provided with transverse sliding grooves (22), the bottoms of the transverse sliding grooves (22) are provided with track blocks (23), and the upper end faces of the track blocks (23) are smooth guide surfaces.

Description

Die casting die with lower oblique-drawing double-side retaining structure Technical Field The invention relates to the technical field of die casting dies, in particular to a die casting die with a lower oblique-drawing double-side retaining structure. Background The die-casting molding process has the advantages of high production efficiency, high product precision, strong capability of molding complex structures and the like, and is widely applied to mass production of nonferrous metal parts. In a die casting mold, for die castings with complex structures such as undercut, side holes and the like, an inclined core-pulling mechanism is generally required to be arranged to finish core-pulling and demolding after molding, so that the die castings are prevented from being clamped or damaged by the mold. At present, the downward inclined core-pulling structure is a common core-pulling mode designed for the complex structure of the lower side of the die casting, and the downward inclined core-pulling block is driven by the oil cylinder to move along the inclined direction, so that core pulling and resetting are realized. However, because the projection area of part of the downward inclined drawing block is larger, the thrust of the conventional oil cylinder cannot be used for counteracting the backward force of the downward inclined drawing block, so that the product size is poor and the risk of material running of the die is generated, and the die cannot be normally produced in large quantity. The existing mould adopts a single-side retaining structure or a simple locating pin for retaining, so that pressure cannot be uniformly dispersed, retaining support force is insufficient, retaining failure or sliding seat movement easily occurs, and the problems of service life, stroke detection, how to arrange a core-pulling oil cylinder and a top plate assembly and the like are also considered. Disclosure of Invention The invention aims to solve the technical problem of providing a die casting die with a lower oblique-drawing double-side retaining structure, the retaining stability is improved by arranging the double-side retaining mechanism, the abrasion is reduced by additionally arranging the abrasion-resistant component, and the positioning accuracy is ensured by arranging the stroke detection device, so that the product forming precision and the service life of the die are improved, and the production and maintenance cost is reduced. The die casting die comprises an upper die holder and a lower die holder, wherein an upper die core and a lower die core which are stacked up and down are arranged between the upper die holder and the lower die holder, a die cavity is arranged between the upper die core and the lower die core, a sliding seat which slides obliquely is arranged in the lower part of the lower die holder, a lower oblique drawing block which penetrates through the lower die core and is inserted into the die cavity in an inclined manner is arranged at the upper end of the sliding seat, an auxiliary insert which is in butt joint with the lower oblique drawing block is arranged at the lower end of the upper die core, a lower base is arranged at the bottom of the lower die holder, a lower die plate is arranged at the lower end of the lower base, a lower core pulling cylinder connected with the sliding seat is arranged on the lower die plate, a retaining block which slides transversely is respectively embedded at two sides of the upper end of the lower base, and retaining cylinders which are connected with the retaining blocks in a one-to-one correspondence manner are arranged at two sides of the lower base. As a supplement to the technical scheme of the invention, the upper part of one end of the stop block is embedded and provided with a wear-resistant block, and the upper end face of the wear-resistant block is flush with the upper end face of the stop block. As a supplement to the technical scheme of the invention, the front end of the lower part of the sliding seat is provided with a horizontal extension rod, the front end of the lower base is provided with a straight-line notch for the extension rod to pass through, and the upper side and the lower side of the front end of the lower base are respectively provided with two infrared sensors matched with the extension rod. As a supplement to the technical scheme of the invention, a concave cavity is formed at the bottom of the lower base, the lower core-pulling oil cylinder is arranged in the concave cavity, a top plate assembly is arranged in the concave cavity, the top plate assembly is sleeved outside the lower core-pulling oil cylinder, and a top rod inserted into a die cavity is vertically arranged on the top plate assembly. As a supplement to the technical scheme of the invention, guard plates are arranged on two sides of the lower core-pulling oil cylinder in the concave cavity, and the top plate assembly is sleeved outside the two guard plates. As