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CN-224209106-U - Die machining device for mechanical casting

CN224209106UCN 224209106 UCN224209106 UCN 224209106UCN-224209106-U

Abstract

The utility model provides a die machining device for mechanical casting, and relates to the technical field of die machining. In the utility model, when cooling water is precisely injected into the heat exchange tank through the water inlet valve, the cooling water drives the rotating shaft and the mixing paddles to rotate at a high speed through the rotating paddles, so that the cooling water exchanges heat with the hot water pipe fully, the waste heat conducted by the mold is absorbed rapidly, the extreme temperature difference between the initial cooling water and the mold is greatly reduced, the preheated cooling water enters the mold core through the cold water pipe, the temperature of the preheated cooling water is matched with the surface layer of the mold in a gradient manner, stable heat absorption is realized, the warmed cooling water flows back to the heat exchange tank through the hot water pipe, gradient preheating is continuously provided for the subsequent cooling water, the dynamic heat balance mechanism ensures that the cooling rate of each part of the mold is consistent, the cracking and deformation risk caused by thermal stress is obviously reduced, the service life of the mold is prolonged, and the casting precision is improved.

Inventors

  • TANG ZHAOJI
  • LU JINHUA
  • TANG HUI
  • WANG LI

Assignees

  • 蓝山县太平湘发机械铸造有限公司

Dates

Publication Date
20260508
Application Date
20250717

Claims (6)

  1. 1. A die processing device for mechanical casting is characterized by comprising a casting mechanism (1) and a heat exchange mechanism (2); A casting mechanism (1) as a main molding structure for casting a mold; The heat exchange mechanism (2) is communicated with the outer surface wall of the casting mechanism (1) and is used for gradually reducing the water temperature and preventing the temperature of the die from suddenly dropping due to the fact that the cooling water temperature is too low; The utility model provides a heat exchange mechanism (2) is including heat exchange tank (201), shaft hole (202) have been seted up at the top of heat exchange tank (201), the fixed intercommunication in top of heat exchange tank (201) has water intaking valve (203), the fixed intercommunication in output of heat exchange tank (201) has cold water pipe (204), the inside of heat exchange tank (201) is fixed to be inserted and is equipped with hot-water line (205), the interior surface wall activity of shaft hole (202) is inserted and is equipped with pivot (206), the outward appearance wall fixed mounting of pivot (206) has a set of mixing paddle (207), the outward appearance wall fixed cover of pivot (206) is equipped with filter screen (208), the outward appearance wall of filter screen (208) is inserted with the interior surface wall activity of heat exchange tank (201), the outward appearance wall fixed mounting of pivot (206) has a set of rotatory oar piece (209).
  2. 2. A mold processing device for mechanical casting according to claim 1, wherein the casting mechanism (1) comprises a base (101), and a set of guide posts (102) are fixedly mounted on the top of the base (101).
  3. 3. A mold processing device for mechanical casting according to claim 2, wherein a top plate (103) is fixedly installed between the tops of a group of the guide posts (102), and a cylinder (104) is fixedly installed on the top of the top plate (103).
  4. 4. A mold processing device for mechanical casting according to claim 3, wherein the output end of the cylinder (104) is fixedly provided with a piston rod (105), the outer surface wall of the piston rod (105) is movably inserted into the top plate (103), the bottom of the piston rod (105) is fixedly provided with a moving plate (106), and the outer surface walls of a group of guide posts (102) are movably inserted into the moving plate (106).
  5. 5. The mold processing device for mechanical casting according to claim 4, wherein a group of dampers (107) are fixedly installed at the bottom of the moving plate (106), a group of springs (108) are fixedly installed at the bottom of the moving plate (106), an upper mold core (109) is fixedly installed between telescopic ends of a group of dampers (107), an input end of the upper mold core (109) is fixedly communicated with an output end of a cold water pipe (204), and the top of the upper mold core (109) is fixedly connected with the bottoms of a group of springs (108).
  6. 6. The device for machining a mold for mechanical casting according to claim 5, wherein a set of flow pipes (110) is fixedly connected to the bottom of the upper mold core (109), a lower mold core (111) is fixedly mounted on the top of the base (101), an output end of the lower mold core (111) is fixedly connected to an input end of the hot water pipe (205), and a set of flow holes (112) is formed in the top of the lower mold core (111).

Description

Die machining device for mechanical casting Technical Field The utility model relates to the technical field of mold processing, in particular to a mold processing device for mechanical casting. Background The mold processing is a vital link in the manufacturing industry, and relates to the design, manufacture, debugging and maintenance of the mold, aiming at producing the mold with high precision and high quality so as to meet the production requirements of various industrial products, wherein the mold is used as basic process equipment in the industrial production, and the quality and the precision of the mold directly influence the quality and the production efficiency of the final product. In mechanical casting production, rapid cooling and hardening are usually realized by means of cooling water, however, when the temperature difference between the cooling water and the mold is large, the surface of the mold rapidly contracts due to quenching, and the inside of the mold still maintains a high-temperature state, and the remarkable temperature difference between the inside and the outside causes uneven thermal expansion and contraction, so that the mold deforms and cracks, the dimensional accuracy and the shape stability of the mold are seriously affected, and the performance of the mold material is deteriorated and the service life of the mold is shortened. Disclosure of utility model The utility model aims to solve the problem that the performance of a final forming die is affected due to the fact that the temperature difference between cooling water and the die is large when the device is used, and provides a die processing device for mechanical casting. In order to achieve the aim, the utility model adopts the following technical scheme that the die processing device for mechanical casting comprises a casting mechanism and a heat exchange mechanism; The casting mechanism is used as a main forming structure and used for casting the mould; The heat exchange mechanism is communicated with the outer surface wall of the casting mechanism and used for gradually reducing the water temperature and preventing the temperature of the die from suddenly reducing due to the fact that the cooling water temperature is too low; The heat exchange mechanism comprises a heat exchange tank, a shaft hole is formed in the top of the heat exchange tank, the top of the heat exchange tank is fixedly communicated with a water inlet valve, the output end of the heat exchange tank is fixedly communicated with a cold water pipe, a hot water pipe is fixedly inserted into the heat exchange tank, a rotating shaft is movably inserted into the inner surface wall of the shaft hole, a group of mixing paddles are fixedly arranged on the outer surface wall of the rotating shaft, a filter screen is fixedly sleeved on the outer surface wall of the rotating shaft, the outer surface wall of the filter screen is movably inserted into the inner surface wall of the heat exchange tank, and a group of rotating paddles are fixedly arranged on the outer surface wall of the rotating shaft; When the mold is required to be cooled, people can firstly inject cooling water into the heat exchange tank through the water inlet valve, when the cooling water contacts with the rotating paddles in the heat exchange tank, the rotating paddles drive the rotating shaft to rotate in the shaft hole, at the moment, the mixing paddles on the outer surface wall of the rotating shaft rotate along with the rotating shaft, so that the mixing paddles are fully contacted with the hot water in the heat exchange tank, residual water in the hot water pipe is heated by the high-temperature mold at the moment, heat is transferred to the cooling water, thereby avoiding overlarge temperature difference between the cooling water and the mold, when the subsequently heated cooling water is conveyed into the mold core by the cold water pipe, the cooling water starts to absorb the heat in the mold, the heated cooling water is discharged by the hot water pipe after cooling is finished, and the subsequent cooling water is heated in the heat exchange tank, so that the cooling speed of each part of the mold is consistent, the cracking and deformation risk of the mold is reduced, the service life and quality of the mold are improved, the cooling water is heated by the endothermic cooling water, the cooling water can be ensured to be lowered along with the temperature reduction of the mold, the stability of the cooling water and the temperature difference with the mold temperature is further ensured, and stable cooling is realized. Preferably, the casting mechanism comprises a base, and a group of guide posts are fixedly arranged at the top of the base and used for preventing the movement direction of the related structure from shifting. Preferably, a top plate is fixedly arranged between the tops of one group of guide posts, a cylinder is fixedly arranged at the top of the top plate, and the