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CN-224224463-U - Gradual cooling system for injection molding

CN224224463UCN 224224463 UCN224224463 UCN 224224463UCN-224224463-U

Abstract

The utility model discloses a gradual cooling system for injection molding, which belongs to the technical field of cooling equipment and comprises a molding die, a cold water machine and a mixing box, wherein a quick cooling channel and a slow cooling channel are arranged on the molding die, a cooling water outlet of the cold water machine is provided with a main water inlet pipeline, the main water inlet pipeline is communicated with the quick cooling channel through a first branch water inlet pipeline, the main water inlet pipeline is communicated with the slow cooling channel through a second branch water inlet pipeline, a water return port of the cold water machine is provided with a main water return pipeline, the main water return pipeline is communicated with the quick cooling channel through a first branch water return pipeline, the main water return pipeline is communicated with the slow cooling channel through a second branch water return pipeline, the mixing box is communicated with the main water inlet pipeline through a first mixed water inlet pipeline, the mixing box is communicated with the first branch water inlet pipeline through a mixed water outlet pipeline, and a water pump is arranged on the pipeline. The partition cooling design effectively reduces the deformation of products, utilizes the heat energy and reduces the energy consumption.

Inventors

  • GAO ZHIWEI

Assignees

  • 四川江龙汽车零部件有限公司

Dates

Publication Date
20260512
Application Date
20250606

Claims (8)

  1. 1. The gradual change type cooling system for injection molding is characterized by comprising a molding die, a cold water machine and a mixing box, wherein a plurality of cooling channels are formed in the molding die, each cooling channel comprises at least one quick cooling channel and at least one slow cooling channel, a main water inlet pipeline is arranged at a cooling water outlet of the cold water machine, the main water inlet pipeline is communicated with a water inlet end of the quick cooling channel through a first branch water inlet pipeline, a first electromagnetic valve is arranged on a pipeline, the main water inlet pipeline is communicated with a water inlet end of the slow cooling channel through a second branch water inlet pipeline, a second electromagnetic valve is arranged on a pipeline, a main water return pipeline is communicated with a water outlet end of the quick cooling channel through a first branch water return pipeline, a main water return pipeline is communicated with a water outlet end of the slow cooling channel through a second branch water return pipeline, a water inlet of the mixing box is communicated with the main water inlet pipeline through a first mixing water inlet pipeline, a fourth electromagnetic valve is arranged on the pipeline, a water inlet of the mixing box is communicated with a water inlet pipeline through a fifth water inlet pipeline, and a water outlet pipeline is communicated with the mixing pipeline is further arranged on the mixing pipeline.
  2. 2. The progressive cooling system of injection molding of claim 1, wherein a junction of the mixed outlet conduit and the second split inlet conduit is located between the second solenoid valve and the inlet end of the slow cooling passage.
  3. 3. The progressive cooling system of injection molding of claim 1, wherein the first return water dividing pipe is provided with a first check valve and a third solenoid valve.
  4. 4. The progressive cooling system of injection molding of claim 3, wherein a junction of said second mixed water intake conduit and said first split return conduit is located between said first check valve and said third solenoid valve.
  5. 5. The progressive cooling system of injection molding of claim 3, wherein a straight-through pipeline is arranged between the first water return dividing pipeline and the mixed water outlet pipeline, and a sixth electromagnetic valve is arranged on the pipeline.
  6. 6. The progressive cooling system of injection molding of claim 5, wherein a junction of the through pipe and the first return water dividing pipe is located between the first check valve and the third solenoid valve, and a junction of the through pipe and the mixed outlet pipe is located between the water pump and the second return water dividing pipe.
  7. 7. The progressive cooling system of injection molding of claim 1, wherein the second return conduit is provided with a second check valve.
  8. 8. The progressive cooling system of injection molding of claim 1, wherein temperature sensors are disposed in the first and second return water pipes and the mixing tank.

Description

Gradual cooling system for injection molding Technical Field The utility model relates to the technical field of cooling equipment, in particular to an injection molding gradual cooling system. Background In the conventional injection molding process, the design of the mold cooling system directly affects the product molding quality and efficiency. The prior art generally employs a single cooling rate or fixed partition cooling channel, which makes it difficult to achieve differential cooling requirements for different regions of a complex part. The uniform cooling mode easily causes the problems of deformation, internal stress concentration and the like of products due to uneven local shrinkage, and particularly has obvious influence on parts with complex structures or larger wall thickness differences. In addition, the traditional cooling system often depends on fixed water temperature control, and the temperature of a cooling medium cannot be dynamically adjusted, so that the energy consumption is high, the flexibility is insufficient, and particularly, the cooling water is required to be heated independently for the part needing slow cooling, so that the energy consumption is increased. Disclosure of utility model The embodiment of the utility model aims to provide an injection molding gradual cooling system, which has a simple structure, is convenient to use and can better solve the problems. The embodiment of the utility model is realized in the following way: The embodiment of the utility model provides an injection molding gradual cooling system, which comprises a molding die, a cold water machine and a mixing box, wherein a plurality of cooling channels are arranged on the molding die, each cooling channel comprises at least one quick cooling channel and at least one slow cooling channel, a cooling water outlet of the cold water machine is provided with a main water inlet pipeline, the main water inlet pipeline is communicated with a water inlet end of the quick cooling channel through a first branch water inlet pipeline, a first electromagnetic valve is arranged on the pipeline, the main water inlet pipeline is communicated with a water inlet end of the slow cooling channel through a second branch water inlet pipeline, a main water return pipeline is arranged at a water return port of the cold water machine, the main water return pipeline is communicated with a water outlet end of the quick cooling channel through a first branch water return pipeline, a water inlet of the mixing box is communicated with a water outlet end of the slow cooling channel through a second branch water return pipeline, a water inlet of the mixing box is communicated with the main water inlet pipeline through a first mixing water inlet pipeline, a fourth electromagnetic valve is arranged on the pipeline, a water inlet of the mixing box is communicated with a water inlet of the first branch water inlet pipeline through a second branch water inlet pipeline, a water inlet pipeline is communicated with a water outlet of the mixing box is further communicated with a water outlet of the mixing box through a fifth water inlet pipeline, and a water inlet pipeline is arranged on the mixing pipeline. Further, the connection point of the mixed water outlet pipeline and the second water diversion pipeline is positioned between the second electromagnetic valve and the water inlet end of the slow cooling channel. Further, a first check valve and a third electromagnetic valve are arranged on the first water dividing and returning pipeline. Further, a connection point of the second mixed water inlet pipeline and the first water dividing and returning pipeline is positioned between the first one-way valve and the third electromagnetic valve. Further, a straight-through pipeline is arranged between the first water distribution and return pipeline and the mixed water outlet pipeline, and a sixth electromagnetic valve is arranged on the pipeline. Further, a connection point of the through pipeline and the first water dividing and returning pipeline is located between the first one-way valve and the third electromagnetic valve, and a connection point of the through pipeline and the mixed water outlet pipeline is located between the water pump and the second water dividing and entering pipeline. Further, a second check valve is arranged on the second water return pipeline. Further, the first water-dividing return pipeline, the second water-dividing return pipeline and the mixing box are internally provided with temperature sensors. The beneficial effects of the utility model are as follows: The gradual change type cooling system for injection molding provided by the embodiment of the utility model is simple in structure and convenient to use, realizes accurate temperature gradient control of different areas of a mold by combining dynamic regulation of the temperature of a cooling medium by a mixing box through the partition design of a quick c