Precise aluminum alloy die-casting die with high thermal conductivity and gradient cooling

Abstract

The utility model discloses a high-thermal-conductivity gradient cooling precision aluminum alloy die-casting die, and relates to the technical field of aluminum alloy die-casting dies. The high-thermal-conductivity gradient cooling precision aluminum alloy die-casting die comprises a bottom plate, and a die mechanism and a die-casting mechanism are arranged above the bottom plate; the mold mechanism comprises a mold part and a cooling part; the die mechanism has the technical effects that heat is rapidly conducted to the cooling box through heat conduction fins on the outer wall of the forming die, a liquid pump pumps cooling liquid in a water tank, and the cooling liquid forms a high heat conduction gradient through a first liquid distribution pipe and a second liquid distribution pipe which are different in pipe diameter and is sent to the upper side and the lower side of the partition plate of the cooling box; the liquid inlet and outlet pipe and the valve of the water tank can supplement or discharge the cooling liquid, and the two ends of the second three-way pipe are located on the upper side and the lower side of the partition plate to guarantee circulation of the cooling liquid.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy die casting mold technology, specifically a precision aluminum alloy die casting mold with high thermal conductivity gradient cooling. Background Technology

[0002] Aluminum alloy die casting is a process in which molten aluminum alloy is injected into a mold under high pressure and then cooled and solidified to form an aluminum alloy casting. Aluminum alloys have good thermal conductivity, strength and hardness, as well as good corrosion resistance, wear resistance and electrical conductivity, which can meet the material requirements of different fields.

[0003] During the die casting process, the mold generates a lot of heat due to the injection of high-temperature molten aluminum. Timely and efficient heat dissipation plays a decisive role in the normal operation of the mold and the forming quality of aluminum alloy products.

[0004] Existing aluminum alloy die casting molds mostly use liquid cooling, but the flow distribution of coolant in the mold is extremely uneven, making it difficult to form an effective thermal gradient. This results in significant differences in cooling effect in different parts of the mold, frequent occurrence of local overheating, and further affects the consistency and stability of aluminum alloy products. Therefore, a precision aluminum alloy die casting mold with high thermal gradient cooling is proposed. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a precision aluminum alloy die-casting mold with high thermal conductivity gradient cooling. This solves the problem of uneven flow distribution of coolant within the mold, making it difficult to form an effective thermal conductivity gradient. This results in significant differences in cooling effects in different parts of the mold, frequent occurrence of local overheating, and further affects the consistency and stability of aluminum alloy products.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: it includes a base plate, and a mold mechanism and a die-casting mechanism are arranged on the top of the base plate;

[0009] The mold mechanism includes a mold section and a cooling section;

[0010] The mold section includes forming molds, and the cooling section includes a cooling box and partitions;

[0011] The bottom surface of the molding die is fixedly connected to the top surface of the base plate, and the bottom surface of the cooling box is fixedly connected to the top surface of the base plate. Multiple sets of heat-conducting fins are fixedly installed on the outer wall of the molding die, and the outer walls of these fins are in contact with the outer wall of the cooling box. The outer wall of the partition is fixedly connected to the inner side of the cooling box, dividing the interior of the cooling box into two parts. A water tank is fixedly installed on the bottom surface of the base plate, and a liquid pump is fixedly installed on the outer wall of the water tank. The inlet end of the liquid pump extends through the outer wall of the water tank to the inner side of the water tank. A first three-way pipe is fixedly sleeved on the outer wall of the liquid pump. A first distribution pipe and a second distribution pipe are fixedly installed through the outer wall of the first three-way pipe, respectively. The sides of both the first and second distribution pipes near the cooling box extend through the outer wall of the cooling box to the inner side of the cooling box. The first and second distribution pipes are located on the upper and lower sides of the partition, respectively.

[0012] Preferably, the die-casting mechanism includes a top plate, and four limiting rods are fixedly installed on the top surface of the bottom plate. The top surfaces of the four limiting rods are all fixedly connected to the bottom surface of the top plate. A lifting plate is slidably sleeved on the outer wall of each of the four limiting rods. A die-casting block is fixedly installed on the bottom surface of the lifting plate. A hydraulic cylinder is fixedly installed on the top surface of the top plate. The bottom surface of the output end of the hydraulic cylinder penetrates the top surface of the top plate and is fixedly connected to the top surface of the lifting plate.

[0013] Preferably, a condenser is fixedly installed on the outer wall of the water tank, and a second three-way pipe is fixedly sleeved on the outer wall of the liquid inlet end of the condenser. The second three-way pipe is fixedly installed on one side near the cooling tank, extending through the outer wall of the cooling tank to the inner side of the cooling tank. The liquid outlet end of the condenser is fixedly installed through the outer wall of the water tank, extending to the inner side of the water tank. The condenser model is GLC3-6.

[0014] Preferably, an inlet / outlet pipe is fixedly provided through the outer wall of the water tank, extending to the inner side of the water tank, and a valve is fixedly provided through the outer wall of the inlet / outlet pipe. The diameter of the first liquid distribution pipe is smaller than the diameter of the second liquid distribution pipe.

[0015] Preferably, the two ends of the second three-way pipe extending to the cooling box are located on the upper and lower sides of the partition, respectively.

[0016] Preferably, a connecting sleeve is fixedly sleeved on the outer wall of the output end of the hydraulic cylinder, two guide rails are fixedly installed on the bottom surface of the top plate, two moving blocks are slidably sleeved on the outer walls of the two guide rails, two connecting plates are hinged on the bottom surfaces of the two moving blocks, and the side of the two connecting plates near the connecting sleeve is hinged to the outer wall of the connecting sleeve.

[0017] (III) Beneficial Effects

[0018] This invention provides a precision aluminum alloy die-casting mold with high thermal conductivity gradient cooling. It has the following advantages:

[0019] (I) This high thermal conductivity gradient cooling precision aluminum alloy die-casting mold has a mold mechanism that rapidly conducts heat to the cooling tank through heat-conducting fins on the outer wall of the forming mold. A liquid pump draws coolant from the water tank and sends it to the upper and lower sides of the cooling tank partition through the first and second distribution pipes of different diameters to form a high thermal conductivity gradient. After the coolant is heated, part of it is cooled by the condenser and flows back to the water tank, while part continues to circulate. The inlet and outlet pipes and valves of the water tank can replenish or discharge coolant. The two ends of the second tee pipe are located on the upper and lower sides of the partition to ensure the circulation of coolant. This not only improves the cooling efficiency and cooling uniformity of the mold, avoids the impact of local overheating on the quality of aluminum alloy products, reduces defects and improves the pass rate, but also ensures that the mold is within a suitable temperature range to extend its service life. At the same time, it provides a good foundation for the heat dissipation of the coolant and enhances the heat dissipation capacity of the mold.

[0020] (II) This high thermal conductivity gradient cooling precision aluminum alloy die-casting mold and die-casting mechanism provide stable guidance for the movement of the lifting plate through four limiting rods on the top surface of the base plate. The hydraulic cylinder pushes the lifting plate to move the die-casting block downward for die casting. At the same time, the connecting sleeve at the output end of the hydraulic cylinder, the guide rail on the bottom surface of the top plate, the sliding moving block on the guide rail, and the hinged connecting plate form a stable structure, which ensures the stability of the lifting plate during the movement, avoids shaking, makes the die casting process stable and reliable, improves the accuracy of the die-casting block in forming aluminum alloy, and ensures the dimensional accuracy and surface quality of the product. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the mold mechanism of this utility model;

[0023] Figure 3 This is a schematic diagram of the condenser in the mold mechanism of this utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of the cooling box in the mold mechanism of this utility model;

[0025] Figure 5 This is a schematic diagram of the die-casting mechanism of this utility model;

[0026] Figure 6 This is a schematic diagram of the connecting plate in the die-casting mechanism of this utility model.

[0027] In the diagram: 1. Base plate; 2. Mold mechanism; 21. Cooling box; 22. Heat-conducting fins; 23. Molding mold; 24. First distribution pipe; 25. First tee pipe; 26. Second distribution pipe; 27. Liquid pump; 28. Water tank; 29. ​​Inlet and outlet pipes; 210. Condenser; 211. Second tee pipe; 212. Partition plate; 3. Die-casting mechanism; 31. Hydraulic cylinder; 32. Top plate; 33. Lifting plate; 34. Die-casting block; 35. Limiting rod; 36. Moving block; 37. Connecting plate; 38. Guide rail; 39. Connecting sleeve. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-6 The present invention provides a technical solution: including a base plate 1, and a mold mechanism 2 and a die-casting mechanism 3 are arranged above the base plate 1;

[0030] Mold mechanism 2 includes a mold section and a cooling section;

[0031] The mold section includes a molding mold 23, and the cooling section includes a cooling box 21 and a partition plate 212;

[0032] The bottom surface of the molding die 23 is fixedly connected to the top surface of the base plate 1, and the bottom surface of the cooling box 21 is fixedly connected to the top surface of the base plate 1. Multiple sets of heat-conducting fins 22 are fixedly installed on the outer wall of the molding die 23, and the outer walls of these fins contact the outer wall of the cooling box 21. The outer wall of the partition plate 212 is fixedly connected to the inner side of the cooling box 21, dividing the interior of the cooling box 21 into two parts. A water tank 28 is fixedly installed on the bottom surface of the base plate 1, and a liquid pump 27 is fixedly installed on the outer wall of the water tank 28. The inlet end of the liquid pump 27 extends through the outer wall of the water tank 28 to the inner side of the water tank 28. A first three-way pipe 25 is fixedly sleeved on the outer wall of the outlet end of the liquid pump 27. A first liquid distribution pipe 24 and a second liquid distribution pipe 26 are fixedly connected through the outer wall of the first three-way pipe 25. The sides of the first liquid distribution pipe 24 and the second liquid distribution pipe 26 closest to the cooling box 21 are... The first liquid distribution pipe 24 and the second liquid distribution pipe 26 extend through the outer wall of the cooling tank 21 to the inner side of the cooling tank 21. The first liquid distribution pipe 24 and the second liquid distribution pipe 26 are located on the upper and lower sides of the partition plate 212, respectively. The condenser 210 is fixedly installed on the outer wall of the water tank 28. The second three-way pipe 211 is fixedly sleeved on the outer wall of the condenser 210. The side of the second three-way pipe 211 near the cooling tank 21 is fixedly installed through the outer wall of the cooling tank 21 and extends to the inner side of the cooling tank 21. The liquid outlet end of the condenser 210 is fixedly installed through the outer wall of the water tank 28 and extends to the inner side of the water tank 28. The inlet and outlet pipes 29 are fixedly installed through the outer wall of the water tank 28 and extend to the inner side of the water tank 28. A valve is fixedly installed through the outer wall of the inlet and outlet pipes 29. The diameter of the first liquid distribution pipe 24 is smaller than the diameter of the second liquid distribution pipe 26. The two ends of the second three-way pipe 211 extending to the cooling tank 21 are located on the upper and lower sides of the partition plate 212, respectively.

[0033] The die-casting mechanism 3 includes a top plate 32. Four limiting rods 35 are fixedly installed on the top surface of the bottom plate 1. The top surfaces of the four limiting rods 35 are all fixedly connected to the bottom surface of the top plate 32. Lifting plates 33 are slidably sleeved on the outer walls of the four limiting rods 35. Die-casting blocks 34 are fixedly installed on the bottom surface of the lifting plates 33. A hydraulic cylinder 31 is fixedly installed on the top surface of the top plate 32. The bottom surface of the output end of the hydraulic cylinder 31 penetrates the top surface of the top plate 32 and is fixedly connected to the top surface of the lifting plates 33. A connecting sleeve 39 is fixedly sleeved on the outer wall of the output end of the hydraulic cylinder 31. Two guide rails 38 are fixedly installed on the bottom surface of the top plate 32. Two moving blocks 36 are slidably sleeved on the outer walls of the two guide rails 38 respectively. Two connecting plates 37 are hinged on the bottom surfaces of the two moving blocks 36 respectively. The side of the two connecting plates 37 near the connecting sleeve 39 is hinged to the outer wall of the connecting sleeve 39.

[0034] When in use, the hydraulic cylinder 31 is started, and the output end pushes the lifting plate 33 to drive the die-casting block 34 to move down along the limit rod 35. The structure composed of the guide rail 38, the moving block 36, the connecting plate 37 and the connecting sleeve 39 ensures that the lifting plate 33 moves down stably. After the die-casting block 34 is die-cast into aluminum alloy, the output end of the hydraulic cylinder 31 moves in the opposite direction to reset it.

[0035] For cooling, the heat generated by the forming mold 23 is transferred to the cooling box 21 through the heat-conducting fins 22. The liquid pump 27 draws out the coolant from the water tank 28, and after being split by the first three-way pipe 25, it is sent to the upper and lower sides of the partition 212 inside the cooling box 21 through the first distribution pipe 24 and the second distribution pipe 26. Because the diameter of the first distribution pipe 24 is smaller than that of the second distribution pipe 26, a high thermal conductivity gradient cooling effect is formed. After the coolant absorbs heat and rises in temperature, part of it enters the condenser 210 through the second three-way pipe 211 for cooling and then returns to the water tank 28, while part of it continues to circulate in the cooling box 21. The inlet and outlet pipes 29 and valves of the water tank 28 can replenish or discharge the coolant. The two ends of the second three-way pipe 211 are located on the upper and lower sides of the partition 212 to ensure the circulation of coolant. This achieves die casting and effective heat dissipation of the mold, ensuring the normal operation of the mold and the quality of the aluminum alloy products.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precision aluminum alloy die-casting mold with high thermal conductivity gradient cooling, comprising a base plate (1), characterized in that: A mold mechanism (2) and a die-casting mechanism (3) are provided above the base plate (1); The mold mechanism (2) includes a mold section and a cooling section; The mold section includes a molding mold (23), and the cooling section includes a cooling box (21) and a partition (212); The bottom surface of the molding die (23) is fixedly connected to the top surface of the base plate (1), the bottom surface of the cooling box (21) is fixedly connected to the top surface of the base plate (1), and multiple sets of heat-conducting fins (22) are fixedly arranged on the outer wall of the molding die (23). The outer walls of the multiple sets of heat-conducting fins (22) are in contact with the outer wall of the cooling box (21). The outer wall of the partition (212) is fixedly connected to the inner side of the cooling box (21). The partition (212) divides the interior of the cooling box (21) into two parts. A water tank (28) is fixedly arranged on the bottom surface of the base plate (1), and a liquid pump (27) is fixedly arranged on the outer wall of the water tank (28). The inlet end of the liquid pump (27) is fixedly inserted through the outer wall of the water tank (28) and extends to the inner side of the water tank (28). The outer wall of the outlet end of the liquid pump (27) is fixedly fitted with a first three-way pipe (25). The outer wall of the first three-way pipe (25) is respectively fixedly connected with a first liquid distribution pipe (24) and a second liquid distribution pipe (26). The side of the first liquid distribution pipe (24) and the second liquid distribution pipe (26) near the cooling box (21) both penetrate through the outer wall of the cooling box (21) and extend to the inner side of the cooling box (21). The first liquid distribution pipe (24) and the second liquid distribution pipe (26) are respectively located on the upper and lower sides of the partition (212).

2. The precision aluminum alloy die-casting mold with high thermal conductivity gradient cooling according to claim 1, characterized in that: The die-casting mechanism (3) includes a top plate (32). Four limiting rods (35) are fixedly installed on the top surface of the bottom plate (1). The top surfaces of the four limiting rods (35) are fixedly connected to the bottom surface of the top plate (32). Lifting plates (33) are slidably sleeved on the outer walls of the four limiting rods (35). Die-casting blocks (34) are fixedly installed on the bottom surface of the lifting plates (33). A hydraulic cylinder (31) is fixedly installed on the top surface of the top plate (32). The bottom surface of the output end of the hydraulic cylinder (31) penetrates the top surface of the top plate (32) and is fixedly connected to the top surface of the lifting plates (33).

3. The precision aluminum alloy die-casting mold with high thermal conductivity gradient cooling according to claim 1, characterized in that: A condenser (210) is fixedly installed on the outer wall of the water tank (28). A second three-way pipe (211) is fixedly sleeved on the outer wall of the liquid inlet end of the condenser (210). The second three-way pipe (211) extends through the outer wall of the cooling tank (21) to the inner side of the cooling tank (21) on one side near the cooling tank (21). The liquid outlet end of the condenser (210) extends through the outer wall of the water tank (28) to the inner side of the water tank (28).

4. The precision aluminum alloy die-casting mold with high thermal conductivity gradient cooling according to claim 1, characterized in that: The outer wall of the water tank (28) is fixedly provided with an inlet / outlet pipe (29) extending to the inner side of the water tank (28). A valve is fixedly provided on the outer wall of the inlet / outlet pipe (29). The diameter of the first liquid distribution pipe (24) is smaller than that of the second liquid distribution pipe (26).

5. A precision aluminum alloy die-casting mold with high thermal conductivity gradient cooling according to claim 3, characterized in that: The two ends of the second three-way pipe (211) extending to the cooling box (21) are located on the upper and lower sides of the partition (212).

6. A precision aluminum alloy die-casting mold with high thermal conductivity gradient cooling according to claim 2, characterized in that: The output end of the hydraulic cylinder (31) is fixedly fitted with a connecting sleeve (39). The bottom surface of the top plate (32) is fixedly provided with two guide rails (38). The outer walls of the two guide rails (38) are respectively slidably fitted with two moving blocks (36). The bottom surfaces of the two moving blocks (36) are respectively hinged with two connecting plates (37). The side of the two connecting plates (37) near the connecting sleeve (39) is hinged to the outer wall of the connecting sleeve (39).

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