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CN-224222697-U - Die casting die mechanism that insulates against heat

CN224222697UCN 224222697 UCN224222697 UCN 224222697UCN-224222697-U

Abstract

The utility model discloses a die-casting die heat insulation mechanism, which belongs to the technical field of die-casting dies and comprises a base plate, bolts are arranged at four corner positions of the base plate in a threaded manner, a lower die and an upper die are arranged on the side face of the base plate, the upper die and the lower die are arranged up and down oppositely and are matched with each other for use, mounting grooves are formed in the inner wall of the lower die and the inner wall of the upper die, a preheating heating plate is fixedly arranged in the inner wall of the mounting grooves, heat insulation jackets are arranged on the outer surface of the lower die and the outer surface of the upper die, and by arranging the heat insulation jackets, a heat insulation effect can be achieved after the upper die and the lower die are clamped, the phenomenon of heat dissipation loss is effectively prevented, the upper die and the lower die are preheated by the preheating heating plate before molten metal is injected, and the temperature difference heat transfer of the cold lower die and the upper die to the molten metal just injected can be prevented from affecting the subsequent die-casting quality.

Inventors

  • CHEN LIANGJIN
  • LAI CAIYUN
  • MENG ZHENNING

Assignees

  • 广东启新精密铸造股份有限公司

Dates

Publication Date
20260512
Application Date
20250429

Claims (6)

  1. 1. The die-casting die heat insulation mechanism is characterized by comprising a base plate (1), bolts (2) are arranged at four corner positions of the base plate (1) in a threaded manner, a lower die (3) and an upper die (4) are arranged on the side face of the base plate (1), the upper die (4) and the lower die (3) are oppositely arranged up and down and are matched with each other for use, mounting grooves are formed in the inner wall of the lower die (3) and the inner wall of the upper die (4), a preheating heating plate (5) is fixedly arranged on the inner wall of the mounting grooves, heat insulation sheaths (6) are respectively arranged on the outer surface of the lower die (3) and the outer surface of the upper die (4), a die-casting cylinder (7) is fixedly arranged on the surface of the heat insulation sheaths (6) at the upper position, the end part of a piston rod of the die-casting cylinder (7) penetrates through the heat insulation sheaths (6) at the upper position and the upper die (4) in a sliding manner, two mounting plates (9) are fixedly arranged on the side face of the base plate (1), a plurality of mounting plates (9) are fixedly arranged on the inner wall of the upper die (4), a plurality of driving plates (10) are fixedly arranged on the upper die (10) and are fixedly connected with the surfaces of the piston rods (11) of the upper die (4), the base plate (1) is provided with a slideway for the first supporting plate (11) to slide.
  2. 2. The die casting die heat insulation mechanism according to claim 1, wherein a second support plate (12) is fixedly arranged at the end part of the first support plate (11) at the same horizontal height position, a hinged arm (13) is hinged to the side face of the second support plate (12), a disc (14) is hinged between the two hinged arms (13), and the hinged arms (13) and the disc (14) are eccentrically distributed.
  3. 3. The die casting die heat insulation mechanism according to claim 1, wherein a plurality of mounting plate II (15) are fixedly arranged on the side face of the base plate (1), a plurality of fixing rods (16) are fixedly arranged on the surface of the mounting plate II (15), the fixing rods (16) penetrate through the heat insulation jacket (6) and the lower die (3) at the lower position in a sliding mode and are fixedly provided with fixing plates (17), and accommodating grooves for accommodating the fixing plates (17) are formed in the inner wall of the lower die (3).
  4. 4. The die casting die heat insulation mechanism of claim 1, wherein a plurality of fixed guide blocks (18) are fixedly arranged on the side face of the lower die (3), a plurality of movable guide blocks (19) are fixedly arranged on the side face of the upper die (4), a guide rod (20) is fixedly arranged on the upper surface of the fixed guide blocks (18), the movable guide blocks (19) are slidably arranged on the outer surface of the guide rod (20), and a limiting disc (21) is fixedly arranged at the top end of the guide rod (20).
  5. 5. The heat insulation mechanism for the die casting die, as set forth in claim 1, characterized in that a limit rod (22) is fixedly installed on the inner wall of the slideway on the base plate (1), and the first support plate (11) is slidably installed on the outer surface of the limit rod (22).
  6. 6. The die casting die heat insulation mechanism as set forth in claim 2, wherein the outer surface of the disc (14) is provided with an annular groove, an arc-shaped sliding block (24) is slidably mounted on the inner wall of the annular groove, an assembling block (23) is fixedly mounted on the side face of the arc-shaped sliding block (24), and the assembling block (23) is fixedly mounted on the side face of the base plate (1).

Description

Die casting die mechanism that insulates against heat Technical Field The utility model belongs to the technical field of die casting dies, and particularly relates to a die casting die heat insulation mechanism. Background The die casting die is a tool for casting metal parts, and is a tool for completing a die casting process on a special die casting die forging machine. The basic technological process of die casting is that molten metal is first cast at low or high speed into the cavity of the mold with movable cavity surface, and the mold is pressurized and forged with the cooling process of molten metal to eliminate the shrinkage cavity and porosity of the blank and to make the internal structure of the blank reach forged broken grains. The comprehensive mechanical properties of the blank are obviously improved. The existing die-casting die lacks of an effective heat insulation and pre-heating mechanism, when hot molten metal is injected into the die, the die is low in temperature due to the fact that the die is made of metal, so that the temperature difference between the molten metal just injected and the molten metal injected after the molten metal is caused, and the die-casting accuracy is lowered. Disclosure of utility model The utility model aims to provide a heat insulation mechanism of a die-casting die, which aims to solve the problems that the existing die-casting die in the prior art lacks of an effective heat insulation and preheating mechanism, and when hot molten metal is injected into the die, the temperature difference between the molten metal just injected and the molten metal injected after the die-casting die is caused because the temperature of the die-casting die is low, so that the die-casting accuracy is reduced. The die-casting die heat insulation mechanism comprises a base plate, bolts are arranged at four corner positions of the base plate in a threaded mode, a lower die and an upper die are arranged on the side face of the base plate, the upper die and the lower die are arranged up and down oppositely and are matched with each other for use, mounting grooves are formed in the inner wall of the lower die and the inner wall of the upper die, a preheating heating plate is fixedly arranged in the inner wall of the mounting grooves, heat insulation jackets are arranged on the outer surface of the lower die and the outer surface of the upper die, a die-casting cylinder is fixedly arranged on the surface of the heat insulation jackets at the upper position, the end portions of piston rods of the die-casting cylinders penetrate through the heat insulation jackets at the upper position and the upper die in a sliding mode, a die-casting plate is fixedly arranged on the side face of the base plate, a die driving cylinder is fixedly arranged on the upper mounting plate, a piston rod of the die driving cylinder is fixedly connected with the heat insulation jackets at the upper position, a plurality of support plates are fixedly arranged on the surface of the upper die and the surface of the lower die, and a plurality of support plates are fixedly arranged on the base plate, and one support plate is provided with one slide rail for sliding. By adopting the scheme, through setting up the heat preservation sheath, can play a heat preservation heat-proof effect after last mould and bed die compound die, effectively prevent to appear the phenomenon that the heat gives off and lose, and utilize preheating hot plate to preheat last mould and bed die before molten metal is poured into, can avoid cold bed die and last mould to just pour into the molten metal and cause the difference in temperature heat transfer to influence subsequent die casting quality, use through setting up backup pad one, backup pad two cooperation articulated arm and disc for the synchronous up-and-down motion of bed die realizes synchronous two-way die sinking and compound die operation under the upward mould up-and-down motion, promotes the operating efficiency. In the above scheme, it should be noted that the die casting cylinder, the die driving cylinder and the preheating heating plate are all electrically connected with an external power supply. As a preferred implementation mode, a second supporting plate is fixedly arranged at the end part of the first supporting plate at the same horizontal height position, a hinged arm is hinged to the side face of the second supporting plate, a disc is hinged between the two hinged arms, and the hinged arms and the disc are eccentrically distributed. By adopting the scheme, the first supporting plate and the second supporting plate are matched with the hinge arms and the disc, when the die driving cylinder drives the upper die to move up and down, the second supporting plate drives the disc to rotate through the hinge arms above, the second supporting plate drives the second supporting plate below to move up and down through the hinge arms below, the first supporting plate drives