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CN-121972629-A - Cooling system of die casting equipment

CN121972629ACN 121972629 ACN121972629 ACN 121972629ACN-121972629-A

Abstract

The invention discloses a cooling system of die casting equipment, which comprises a base, a die casting main body, a driver and a cooling mechanism. The cooling mechanism is connected with a plurality of cooling needle cores through pipelines to form a cooling loop. The cooling needle core comprises a fixing piece, an inner tube, a movable tube, a telescopic piece, a spring and a liquid injection tube. According to the cooling system of the die casting equipment, the inner pipe and the movable pipe are arranged, so that water flow impacts the telescopic piece, the telescopic piece is stretched under pressure, the movable pipe is pushed to extend out of the inner pipe, and cooling pipelines with different lengths can be adapted. Simultaneously, through the cooperation of spring and extensible member, can realize the three-section extension of movable pipe, after rivers stop the injection, can drive movable pipe and reset under the elasticity of spring and extensible member, be favorable to the storage of more rivers or the discharge of rivers. When the movable pipe extends, the cooling medium can be better conveyed to the inside of the cooling pipeline, and the cooling effect on the die is improved.

Inventors

  • CHU DONGDONG

Assignees

  • 宁波海琰伟业金属制品有限公司

Dates

Publication Date
20260505
Application Date
20260319

Claims (9)

  1. 1. A cooling system of a die casting apparatus, comprising: The die-casting device comprises a base, wherein a die-casting main body is arranged on the base, a movable die part and a fixed die part are arranged in the die-casting main body, and a plurality of cooling needle cores are arranged in the movable die part; The device comprises a driver and a cooling mechanism, wherein the driver is arranged at the rear end of a base, is connected with a movable mould part and is used for enabling the movable mould part to be close to or far from a fixed mould part, and the cooling mechanism is connected with a plurality of cooling needle cores through pipelines to form a cooling loop; The cooling needle core comprises: the fixing piece is provided with a first external thread, a first through hole is formed in the middle of the fixing piece, a first internal thread is arranged in the first through hole, and the fixing piece is provided with a liquid outlet pipe; The inner tube is arranged in the first through hole, a movable tube, a telescopic piece and a spring are arranged in the inner tube, a second through hole is formed in the middle of the inner tube, the spring is arranged on the inner wall of the second through hole, one end of the telescopic piece is kept in contact with the spring, and the other end of the telescopic piece is connected with the movable tube; The liquid injection pipe is arranged in the middle of the first internal thread, the liquid injection pipe extends to the middle of the telescopic piece, the outer wall of the liquid injection pipe is provided with a second external thread matched with the first internal thread, When the liquid injection pipe is used for injecting liquid, the liquid injection pipe impacts the telescopic piece through high-pressure liquid flow, the telescopic piece is kept to be stretched under the stress, the spring is driven to be compressed, the movable piece connected with one end of the telescopic piece moves in the second through hole, and the movable pipe is kept to extend out of the inner pipe.
  2. 2. The cooling system of the die casting apparatus according to claim 1, wherein the expansion member is composed of a first mounting portion, a expansion portion, and a second mounting portion, the first mounting portion being connected with the movable pipe, the expansion portion connecting the first mounting portion and the second mounting portion, the second mounting portion being held in contact with the spring.
  3. 3. The cooling system of the die casting apparatus according to claim 2, wherein a first annular groove is provided in the middle of the inner tube, an inner diameter of the first annular groove is larger than an inner diameter of the first through hole, the spring and the second mounting portion are provided in the first annular groove, and the spring is provided between the first mounting portion and the second mounting portion.
  4. 4. A cooling system of a die casting apparatus according to claim 3, wherein the first mounting portion and the second mounting portion are each provided with a connecting section, both ends of the connecting section are provided with arc-shaped sections, the arc-shaped sections extend from one end of the connecting section to the other end of the connecting section, and a compression area is formed between the arc-shaped sections and the connecting section.
  5. 5. The cooling system of die casting apparatus as claimed in claim 4, wherein one end of the arcuate segment is a connecting end and the other end is a free end, the free end and the connecting segment forming a compression gap therebetween.
  6. 6. The cooling system of the die casting apparatus according to claim 5, wherein the expansion and contraction part is composed of a first inclined section, a second inclined section, a horizontal section, a third inclined section, and a fourth inclined section, a first elastic region is formed between the first inclined section and the second inclined section, and a second elastic region is formed between the third inclined section and the fourth inclined section.
  7. 7. The cooling system of the die casting apparatus according to claim 6, wherein the included angle of the first elastic region is smaller than the included angle of the second elastic region, and the elastic force of the spring is larger than the elastic forces of the first elastic region and the second elastic region.
  8. 8. The cooling system of die casting equipment according to claim 7, wherein a sliding hole is formed in the middle of the horizontal section, a sliding rod matched with the sliding hole is arranged on the liquid injection pipe, and the diameter of the sliding rod is smaller than the inner diameter of the sliding hole.
  9. 9. The cooling system of die casting equipment according to claim 1, wherein the movable pipe is composed of a cylinder body and a disc body, a third through hole is formed in the middle of the cylinder body, a second annular groove is formed in the inner wall of the third through hole, one end of the telescopic piece is arranged in the second annular groove, and symmetrically arranged notches are formed in the cylinder body.

Description

Cooling system of die casting equipment Technical Field The invention relates to a die casting cooling technology, in particular to a cooling system of die casting equipment. Background In metal mold casting, a core made of metal is commonly used, and the core is removed in time after solidification of the metal. When producing more complex castings (such as cylinder heads and the like) in batches or in large quantities, the core is also used for forming casting molds, namely 'core assembling molding', and the die casting mold is a tool for casting metal parts, and a tool for completing a die casting process on a special die casting forging machine. The existing high-pressure cooling core pin structure of the die-casting die has the problems that the existing high-pressure cooling core pin structure of the die-casting die is inserted into a reserved mounting hole on the die-casting die when in use, and then the high-pressure cooling core pin structure of the die-casting die is connected with external cooling liquid supply equipment for use, so that when cooling liquid is conveyed into the high-pressure cooling core pin structure of the die-casting die and cools the die-casting die, the high-pressure cooling core pin structure of the die-casting die is influenced by the mounting mode and the mounting position of the high-pressure cooling core pin of the die-casting die, the high-pressure cooling core pin of the die-casting die can only cool a local area of the die-casting die, the consumption of the cooling liquid is wasted, and the cooling area of the die-casting die is small and the cooling effect of the die-casting die is influenced. Because of different products, the cooling channels are different in depth in design, cooling needle cores with different lengths need to be processed, and the needle cores with different depths cannot be used mutually, and additional design is needed, so that the cost is increased and the investment time is needed for design. Disclosure of Invention In order to solve the defects in the prior art, the invention provides a cooling system of die casting equipment. A cooling system for a die casting apparatus, comprising: The die-casting device comprises a base, wherein a die-casting main body is arranged on the base, a movable die part and a fixed die part are arranged in the die-casting main body, and a plurality of cooling needle cores are arranged in the movable die part; The device comprises a driver and a cooling mechanism, wherein the driver is arranged at the rear end of a base, is connected with a movable mould part and is used for enabling the movable mould part to be close to or far from a fixed mould part, and the cooling mechanism is connected with a plurality of cooling needle cores through pipelines to form a cooling loop; The cooling needle core comprises: the fixing piece is provided with a first external thread, a first through hole is formed in the middle of the fixing piece, a first internal thread is arranged in the first through hole, and the fixing piece is provided with a liquid outlet pipe; The inner tube is arranged in the first through hole, a movable tube, a telescopic piece and a spring are arranged in the inner tube, a second through hole is formed in the middle of the inner tube, the spring is arranged on the inner wall of the second through hole, one end of the telescopic piece is kept in contact with the spring, and the other end of the telescopic piece is connected with the movable tube; The liquid injection pipe is arranged in the middle of the first internal thread, the liquid injection pipe extends to the middle of the telescopic piece, the outer wall of the liquid injection pipe is provided with a second external thread matched with the first internal thread, When the liquid injection pipe is used for injecting liquid, the liquid injection pipe impacts the telescopic piece through high-pressure liquid flow, the telescopic piece is kept to be stretched under the stress, the spring is driven to be compressed, the movable piece connected with one end of the telescopic piece moves in the second through hole, and the movable pipe is kept to extend out of the inner pipe. In the invention, the telescopic member is composed of a first mounting part, a telescopic part and a second mounting part, wherein the first mounting part is connected with the movable pipe, the telescopic part connects the first mounting part with the second mounting part, and the second mounting part is kept in contact with the spring. In the invention, a first annular groove is arranged in the middle of the inner tube, the inner diameter of the first annular groove is larger than the inner diameter of the first through hole, the spring and the second mounting part are arranged in the first annular groove, and the spring is arranged between the first mounting part and the second mounting part. In the invention, the first installation part and the second installation part are re