Die-casting die for automobile end cover

Abstract

The die-casting die for the automobile end cover relates to the technical field of die-casting dies and comprises a bottom plate, a movable plate and a fixed plate are slidably mounted on the outer surface of the upper side of the bottom plate, a runner adjusting assembly is arranged on one side of the fixed die and comprises a first motor, and a threaded lead screw is fixedly mounted on the outer surface of the output end of the first motor; a first push rod is fixedly installed on the outer surface of one side of the first connecting plate, a sleeve is slidably installed on the outer wall of the first push block, a flow pipe is slidably installed on the inner wall of the sleeve, a first electric telescopic rod is fixedly installed on the inner wall of one side of the first push rod, a second connecting plate is fixedly installed on the outer wall of the sleeve, and a second electric telescopic rod is fixedly installed on the outer surface of one side of the second connecting plate. Through the arrangement of the runner adjusting assembly, the second electric telescopic rod is started to drive the sleeve to slide, the first motor is started to drive the first push rod to move along with the sleeve, by means of the structure, the length of the runner is adjusted, meanwhile, the flow speed of molten metal is controlled, and the flexibility of the mold runner is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of die-casting molds, and particularly to a die-casting mold for an automotive end cover. Background Art

[0002] In the field of automotive manufacturing, as an important component, the automotive end cover plays key roles such as protecting the internal structure, sealing, and assisting the normal operation of related components. With the continuous development of the automotive industry, higher requirements are put forward for the quality, precision, and production efficiency of automotive components. Due to its advantage of being able to efficiently produce components with complex shapes, high dimensional accuracy, and good mechanical properties, the die-casting process is widely used in the manufacturing process of automotive end covers. Correspondingly, the die-casting mold has become one of the core equipments for realizing the production of high-quality automotive end covers. The existing die-casting molds usually consist of structures such as a moving mold, a moving template, a fixed mold, and a fixed template. When in use, the moving mold and the moving template are fixedly installed on the moving template of the die-casting machine, the fixed mold and the fixed template are fixedly installed on the fixed template of the die-casting machine, then the die-casting machine is started to make the fixed mold and the moving mold close, and then the molten metal is poured into the mold cavity between the fixed mold and the moving mold through the casting pipeline. After the molten metal is formed and cooled, the die-casting machine is started again to make the fixed mold and the moving mold separate, and then the formed product is taken out.

[0003] On the gating system of the existing die-casting molds, relatively conventional sprue or side gate forms are mostly adopted. Although this can meet the basic requirements for the filling of molten metal, the sprue is usually fixed and non-adjustable, with poor flexibility, and it is easy to have uneven flow of molten metal, resulting in defects such as gas entrapment and inclusion in the end cover, affecting the overall performance of the product, and greatly reducing the working efficiency and quality of the die-casting mold to a certain extent.

[0004] Therefore, a die-casting mold for an automotive end cover is proposed to solve the above problems. Summary of the Invention

[0005] (1) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the existing technology, the present invention provides a die-casting mold for an automotive end cover, which realizes the adjustment of the length of the sprue and at the same time realizes the control of the flow rate of the molten metal in the sprue, improves the flexibility of the mold sprue, ensures that the molten metal can fill the entire cavity smoothly, evenly, and quickly, and avoids die-casting defects such as underfilling and cold shut, so as to solve the problems raised in the above background art.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the present invention provides the following technical solution: A die-casting mold for an automotive end cover, including a bottom plate, on the upper outer surface of which a movable plate and a fixed plate are slidably installed. On one side outer surface of the fixed plate, a fixed mold is fixedly installed. On the other side outer surface of the fixed plate, a support plate is fixedly installed. On one side outer surface of the movable plate, a movable mold is fixedly installed. On the other side outer surface of the movable plate, a protective frame is fixedly installed. On one side of the fixed mold, a runner adjusting component is provided. On one side of the movable mold, a uniform cooling component is provided. Between the movable plate and the fixed plate, a buffer component is provided;

[0009] The runner adjusting component includes a first motor, on the outer surface of the output end of which a threaded lead screw is fixedly installed. The outer surface of the threaded lead screw is threadedly connected with a first connecting plate. On one side outer surface of the first connecting plate, a first push rod is fixedly installed. At one end outer surface of the first push rod, a first push block is fixedly installed. The outer wall of the first push block is slidably installed with a sleeve. On the upper side outer surface of the sleeve, a funnel is fixedly installed. The inner wall of the sleeve is slidably installed with a runner pipe. On one side inner wall of the first push rod, a first electric telescopic rod is fixedly installed. On the outer surface of the telescopic end of the first electric telescopic rod, a second push rod is fixedly installed. At one end outer surface of the second push rod, a second push block is fixedly installed. On the outer wall of the sleeve, a second connecting plate is fixedly installed. On one side outer surface of the second connecting plate, a second electric telescopic rod is fixedly installed.

[0010] Preferably, the first motor is fixedly installed on the upper side outer surface of the support plate. The runner pipe is fixedly installed on one side outer surface of the fixed mold. The second push rod slides in the inner walls of the first push rod and the first push block. The second electric telescopic rod is fixedly installed on one side inner wall of the fixed plate.

[0011] Preferably, the uniform cooling component includes a cooling box, on one side outer surface of which a water pump is fixedly installed. At one end outer surface of the water pump, a first hose is fixedly installed. One end of the first hose is fixedly connected with a U-shaped cooling pipe. One end of the U-shaped cooling pipe is fixedly connected with a second hose. The outer wall of the U-shaped cooling pipe is fixedly sleeved with a mounting block. On one side outer surface of the mounting block, a fixing block is fixedly installed. The inner wall of the fixing block is threadedly connected with a reciprocating lead screw. At one end outer surface of the reciprocating lead screw, a second motor is fixedly installed.

[0012] Preferably, the cooling box is fixedly installed on the lower side outer surface of the bottom plate. One end of the second hose is fixedly connected to the water inlet end surface of the cooling box. Both the first hose and the second hose are arranged on the lower side inner wall of the movable plate. The mounting block slides on the surface between the movable plate and the movable mold. The fixing block slides on the inner surface of the protective frame. The reciprocating lead screw is rotatably connected to the inner wall of the protective frame. The second motor is fixedly installed on one side inner wall of the protective frame.

[0013] Preferably, the buffer assembly includes a connecting rod. Two fixing threads are symmetrically arranged on the outer walls at both ends of the connecting rod. Two threaded sleeves are threadedly connected to the outer surfaces of the two fixing threads. Two buffer rings are symmetrically and slidably mounted on the outer wall of the connecting rod. Two springs are fixedly mounted on the outer surfaces of one sides of the two buffer rings.

[0014] Preferably, the connecting rod is slidably mounted on the inner walls of the fixed plate and the moving plate. One threaded sleeve is attached to the outer surface of one side of the fixed plate, and the other threaded sleeve is attached to the outer surface of one side of the moving plate. One end of one spring is attached to the outer surface of the other side of the fixed plate, and one end of the other spring is attached to the outer surface of the other side of the moving plate.

[0015] Preferably, the inner diameter of the flow pipe is equal to the diameter of the second push block, and the first push rod is activated to make the second push block slide on the inner wall of the flow pipe.

[0016] Preferably, when the fixed mold and the moving mold are closed, the two buffer rings are in contact with each other and the two springs are compressed.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the present invention provides a die-casting mold for an automobile end cover, having the following

[0019] beneficial effects:

[0020] 1. By providing a runner adjustment assembly including a first motor, according to the casting requirements of the end cover, the second electric telescopic rod is activated to push the second connecting plate to drive the sleeve to slide on the outer wall of the flow pipe. At the same time, the first motor is activated to drive the threaded lead screw to rotate. The rotation of the threaded lead screw drives the first connecting plate threadedly connected to its outer surface to move horizontally, driving the first push rod to move along with the sleeve, so that the first push block is always at one end inner wall of the sleeve. Then the molten metal is poured into the funnel, and the molten metal flows into the sleeve. Then the first motor is activated again to make the first push rod push the first push block to slide, pushing the molten metal on the inner wall of the sleeve to the inner wall of the flow pipe. At this time, the first electric telescopic rod is activated to drive the second push rod to slide, so that the second push block slides on the inner wall of the flow pipe, pushing the molten metal into the closed mold cavity. With the above structure, by activating the second electric telescopic rod, the first electric telescopic rod and the first motor, not only the length adjustment of the runner is realized, but also the flow rate control of the molten metal in the runner is realized, improving the flexibility of the mold runner, ensuring that the molten metal can smoothly, evenly and quickly fill the entire cavity, avoiding die-casting defects such as undercasting and cold shut, guaranteeing the overall performance of the product, and thus greatly improving the working efficiency and quality of the die-casting mold.

[0021] 2. The uniform cooling component provided by the present invention includes a cooling box. During cooling, the water pump is started to convey the cooling water in the cooling box to the inside of the U-shaped cooling pipe through the first hose, and then it flows back to the cooling box through the second hose. At the same time, the second motor is started to drive the reciprocating lead screw to rotate. The rotation of the reciprocating lead screw drives the fixed block threadedly connected to its outer surface to slide, thereby driving the mounting block to slide, and further driving the U-shaped cooling pipe to reciprocate on one side of the moving die. With the above structure, by starting the second motor to drive the U-shaped cooling pipe to reciprocate on one side of the moving die, the cooling effect of the mold is achieved, the production efficiency of the product is accelerated, and at the same time, the moving speed of the U-shaped cooling pipe can be controlled by controlling the rotation speed of the second motor, so that the moving speed of the U-shaped cooling pipe becomes slower or faster on the thicker or thinner side of the product, ensuring the uniform cooling of the product and further improving the production efficiency and quality of the die-casting mold.

[0022] 3. The buffer component provided by the present invention includes a connecting rod. The connecting rod is slidably installed on the inner walls of the fixed plate and the moving plate, and then the threaded sleeves are threadedly connected to the outer walls at both ends of the connecting rod. When the mold is closed, the two buffer rings on the outer wall of the connecting rod are mutually attached and simultaneously compress the springs. With the above structure, through the provided buffer rings and springs, the buffering effect during the closing of the mold is achieved, reducing the wear of the fixed die and the moving die during closing, and improving the service life of the mold to a certain extent. Description of the Drawings

[0023] Figure 1 is the overall structure diagram of the present invention;

[0024] Figure 2 is the overall structure diagram of one side of the present invention;

[0025] Figure 3 is the structure diagram of the runner adjustment component of the present invention;

[0026] Figure 4 is the internal structure diagram of the sleeve, the first push rod and the flow pipe of the present invention;

[0027] Figure 5 is the structure diagram of the uniform cooling component of the present invention;

[0028] Figure 6 is the structure diagram of the buffer component of the present invention.

[0029] Reference Numerals:

[0030] 1. Bottom plate; 2. Runner adjustment assembly; 3. Uniform cooling assembly; 4. Buffer assembly; 5. Fixed plate; 6. Fixed mold; 7. Support plate; 8. Protective frame; 9. Movable plate; 10. Movable mold; 21. Motor 1; 22. Threaded lead screw; 23. Connecting plate 1; 24. Push rod 1; 25. Push block 1; 26. Sleeve; 27. Hopper; 28. Flow pipe; 29. Electric telescopic rod 1; 211. Push rod 2; 212. Push block 2; 213. Connecting plate 2; 214. Electric telescopic rod 2; 31. Cooling box; 32. Water pump; 33. Hose 1; 34. U-shaped cooling pipe; 35. Hose 2; 36. Mounting block; 37. Fixed block; 38. Reciprocating lead screw; 39. Motor 2; 41. Connecting rod; 42. Fixed thread; 43. Threaded sleeve; 44. Buffer ring; 45. Spring. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] The present invention will be further described in detail below according to the drawings and embodiments.

[0033] Embodiment

[0034] Please refer to Figures 1 to 6 as shown:

[0035] To solve the problems mentioned in the technical solutions, the embodiment of the present application provides a die-casting mold for an automotive end cover, including a bottom plate 1. A movable plate 9 and a fixed plate 5 are slidably installed on the upper outer surface of the bottom plate 1. A fixed mold 6 is fixedly installed on one side outer surface of the fixed plate 5, a support plate 7 is fixedly installed on the other side outer surface of the fixed plate 5, a movable mold 10 is fixedly installed on one side outer surface of the movable plate 9, a protective frame 8 is fixedly installed on the other side outer surface of the movable plate 9. A runner adjustment assembly 2 is arranged on one side of the fixed mold 6, a uniform cooling assembly 3 is arranged on one side of the movable mold 10, and a buffer assembly 4 is arranged between the movable plate 9 and the fixed plate 5;

[0036] The runner adjustment assembly 2 includes a first motor 21. A threaded lead screw 22 is fixedly installed on the outer surface of the output end of the first motor 21. A first connecting plate 23 is threadedly connected to the outer surface of the threaded lead screw 22. A first push rod 24 is fixedly installed on the outer surface of one side of the first connecting plate 23. A first push block 25 is fixedly installed on the outer surface of one end of the first push rod 24. A sleeve 26 is slidably installed on the outer wall of the first push block 25. A funnel 27 is fixedly installed on the outer surface of the upper side of the sleeve 26. A runner tube 28 is slidably installed in the inner wall of the sleeve 26. A first electric telescopic rod 29 is fixedly installed on the inner wall of one side of the first push rod 24. A second push rod 211 is fixedly installed on the outer surface of the telescopic end of the first electric telescopic rod 29. A second push block 212 is fixedly installed on the outer surface of one end of the second push rod 211. A second connecting plate 213 is fixedly installed on the outer wall of the sleeve 26. A second electric telescopic rod 214 is fixedly installed on the outer surface of one side of the second connecting plate 213.

[0037] Preferably, the first motor 21 is fixedly installed on the outer surface of the upper side of the support plate 7. The runner tube 28 is fixedly installed on the outer surface of one side of the fixed mold 6. The second push rod 211 slides in the inner walls of the first push rod 24 and the first push block 25. The second electric telescopic rod 214 is fixedly installed on the inner wall of one side of the fixed plate 5.

[0038] By starting the second electric telescopic rod 214 to push the second connecting plate 213 to drive the sleeve 26 to slide on the outer wall of the runner tube 28, and at the same time starting the first motor 21 to drive the threaded lead screw 22 to rotate, the rotation of the threaded lead screw 22 drives the first connecting plate 23 threadedly connected to its outer surface to move horizontally, driving the first push rod 24 to move along with the sleeve 26, so that the first push block 25 is always at one end inner wall of the sleeve 26. Then, the molten metal is poured into the inside of the funnel 27, so that the molten metal flows into the inside of the sleeve 26. Then, start the first motor 21 again to make the first push rod 24 push the first push block 25 to slide, and push the molten metal on the inner wall of the sleeve 26 to the inner wall of the runner tube 28. At this time, start the first electric telescopic rod 29 to drive the second push rod 211 to slide, so that the second push block 212 slides on the inner wall of the runner tube 28, and push the molten metal into the closed mold cavity. This not only realizes the adjustment of the length of the runner, but also realizes the control of the flow rate of the molten metal in the runner, improves the flexibility of the mold runner, ensures that the molten metal can fill the entire cavity smoothly, evenly and quickly, avoids die-casting defects such as insufficient pouring and cold shut, guarantees the overall performance of the product, and thus greatly improves the working efficiency and quality of the die-casting mold.

[0039] Preferably, the uniform cooling assembly 3 includes a cooling box 31. A water pump 32 is fixedly installed on the outer surface of one side of the cooling box 31. One end of the water pump 32 is fixedly installed with a first hose 33. One end of the first hose 33 is fixedly connected to a U-shaped cooling pipe 34. One end of the U-shaped cooling pipe 34 is fixedly connected to a second hose 35. An installation block 36 is fixedly sleeved on the outer wall of the U-shaped cooling pipe 34. A fixing block 37 is fixedly installed on the outer surface of one side of the installation block 36. A reciprocating lead screw 38 is threadedly connected to the inner wall of the fixing block 37. One end of the reciprocating lead screw 38 is fixedly installed with a second motor 39.

[0040] Preferably, the cooling box 31 is fixedly installed on the lower outer surface of the bottom plate 1. One end of the second hose 35 is fixedly connected to the surface of the water inlet end of the cooling box 31. Both the first hose 33 and the second hose 35 are arranged on the inner wall of the lower side of the moving plate 9. The installation block 36 slides on the surface between the moving plate 9 and the moving die 10. The fixing block 37 slides on the inner surface of the protective frame 8. The reciprocating lead screw 38 is rotatably connected to the inner wall of the protective frame 8. The second motor 39 is fixedly installed on the inner wall of one side of the protective frame 8;

[0041] By starting the water pump 32, the cooling water in the cooling box 31 is conveyed to the inside of the U-shaped cooling pipe 34 through the first hose 33, and then flows back to the cooling box 31 through the second hose 35. At the same time, the second motor 39 is started to drive the reciprocating lead screw 38 to rotate. The rotation of the reciprocating lead screw 38 drives the fixing block 37 threadedly connected to its outer surface to slide, thereby driving the installation block 36 to slide, and further driving the U-shaped cooling pipe 34 to reciprocate on one side of the moving die 10, realizing the cooling effect of the mold, accelerating the production efficiency of the product. At the same time, the moving speed of the U-shaped cooling pipe 34 can be controlled by controlling the rotation speed of the second motor 39, so that the moving speed of the U-shaped cooling pipe 34 becomes slower or faster on the side where the product is thicker or thinner, ensuring the uniform cooling of the product, and further improving the production efficiency and quality of the die-casting mold.

[0042] Preferably, the buffer assembly 4 includes a connecting rod 41. Two fixing threads 42 are symmetrically arranged on the outer walls of both ends of the connecting rod 41. Two threaded sleeves 43 are threadedly connected to the outer surfaces of the two fixing threads 42. Two buffer rings 44 are symmetrically and slidably installed on the outer wall of the connecting rod 41. Two springs 45 are fixedly installed on the outer surface of one side of each of the two buffer rings 44.

[0043] Preferably, the connecting rod 41 is slidably installed in the inner walls of the fixed plate 5 and the moving plate 9. One threaded sleeve 43 is attached to the outer surface of one side of the fixed plate 5, and the other threaded sleeve 43 is attached to the outer surface of one side of the moving plate 9. One end of one spring 45 is attached to the outer surface of the other side of the fixed plate 5, and one end of the other spring 45 is attached to the outer surface of the other side of the moving plate 9;

[0044] Through the provided buffer rings 44 and springs 45, when the mold closes, the two buffer rings 44 on the outer wall of the connecting rod 41 fit together and simultaneously compress the springs 45, achieving the buffering effect during mold closing, reducing the wear during the closing of the fixed mold 6 and the moving mold 10, and to a certain extent improving the service life of the mold.

[0045] Preferably, the inner diameter of the flow tube 28 is equal to the diameter of the second push block 212, and the first push rod 24 is activated to cause the second push block 212 to slide on the inner wall of the flow tube 28..

[0046] Preferably, when the fixed mold 6 and the moving mold 10 close, the two buffer rings 44 fit together and compress the two springs 45.

[0047] The working principle of all the contents in the above embodiments is as follows:

[0048] First, the fixed plate 5 is fixedly installed on the fixed template of the die-casting machine, and the moving plate 9 is fixedly installed on the moving template of the die-casting machine. Then, according to the casting requirements of the end cover, the second electric telescopic rod 214 is activated to push the second connecting plate 213 to drive the sleeve 26 to slide on the outer wall of the flow tube 28. At the same time, the first motor 21 is activated to drive the threaded lead screw 22 to rotate. The rotation of the threaded lead screw 22 drives the first connecting plate 23 threadedly connected to its outer surface to move horizontally, driving the first push rod 24 to move along with the sleeve 26, so that the first push block 25 is always located at one end inner wall of the sleeve 26. During use, the die-casting machine is activated to drive the moving mold 10 to approach the fixed mold 6 and complete the closing. When closing, the two buffer rings 44 on the outer wall of the connecting rod 41 fit together and simultaneously compress the springs 45. With the above structure, through the provided buffer rings 44 and springs 45, the buffering effect during mold closing is achieved, reducing the wear during the closing of the fixed mold 6 and the moving mold 10. After the closing is completed, the molten metal is poured into the funnel 27, and the molten metal flows into the sleeve 26. Then, the first motor 21 is activated again to cause the first push rod 24 to push the first push block 25 to slide, pushing the molten metal on the inner wall of the sleeve 26 to the inner wall of the flow tube 28. At this time, the first electric telescopic rod 29 is activated to drive the second push rod 211 to slide, causing the second push block 212 to slide on the inner wall of the flow tube 28, pushing the molten metal to the closed mold cavity, achieving the adjustment of the length of the runner and simultaneously controlling the flow rate of the molten metal in the runner, improving the flexibility of the mold runner, ensuring that the molten metal can fill the entire cavity smoothly, evenly and quickly, avoiding die-casting defects such as insufficient filling and cold shuts, guaranteeing the overall performance of the product, and thus greatly improving the working efficiency and quality of the die-casting mold.

[0049] During cooling, the water pump 32 is started to deliver the cooling water in the cooling tank 31 to the inside of the U-shaped cooling pipe 34 through the first hose 33, and then it flows back to the cooling tank 31 through the second hose 35. At the same time, the second motor 39 is started to drive the reciprocating lead screw 38 to rotate. The rotation of the reciprocating lead screw 38 drives the fixed block 37 threadedly connected to its outer surface to slide, thereby driving the mounting block 36 to slide, and further driving the U-shaped cooling pipe 34 to reciprocate on one side of the moving mold 10, completing the rapid cooling of the mold, accelerating the production efficiency of the product. At the same time, the moving speed of the U-shaped cooling pipe 34 can be controlled by controlling the rotation speed of the second motor 39, so that the moving speed of the U-shaped cooling pipe 34 becomes slower or faster on the thicker or thinner side of the product, ensuring uniform cooling of the product, and further improving the production efficiency and quality of the die-casting mold. After the cooling is completed, the die-casting machine is started to separate the fixed mold 6 and the moving mold 10, and finally the product can be taken off.

[0050] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.

[0051] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A die-casting mold for an automotive end cover, comprising a bottom plate (1), characterized in that: The upper outer surface of the bottom plate (1) is slidably installed with a movable plate (9) and a fixed plate (5). One outer surface of the fixed plate (5) is fixedly installed with a fixed mold (6), and the other outer surface of the fixed plate (5) is fixedly installed with a support plate (7). One outer surface of the movable plate (9) is fixedly installed with a movable mold (10), and the other outer surface of the movable plate (9) is fixedly installed with a protective frame (8). One side of the fixed mold (6) is provided with a runner adjusting assembly (2), one side of the movable mold (10) is provided with a uniform cooling assembly (3), and a buffer assembly (4) is arranged between the movable plate (9) and the fixed plate (5). The runner adjusting assembly (2) includes a first motor (21). The output end outer surface of the first motor (21) is fixedly installed with a threaded lead screw (22). The outer surface of the threaded lead screw (22) is threadedly connected with a first connecting plate (23). One outer surface of the first connecting plate (23) is fixedly installed with a first push rod (24). One end outer surface of the first push rod (24) is fixedly installed with a first push block (25). The outer wall of the first push block (25) is slidably installed with a sleeve (26). The upper outer surface of the sleeve (26) is fixedly installed with a funnel (27). The inner wall of the sleeve (26) is slidably installed with a runner pipe (28). One side inner wall of the first push rod (24) is fixedly installed with a first electric telescopic rod (29). The telescopic end outer surface of the first electric telescopic rod (29) is fixedly installed with a second push rod (211). One end outer surface of the second push rod (211) is fixedly installed with a second push block (212). The outer wall of the sleeve (26) is fixedly installed with a second connecting plate (213). One outer surface of the second connecting plate (213) is fixedly installed with a second electric telescopic rod (214).

2. The die-casting mold for the automotive end cover according to claim 1, wherein: The first motor (21) is fixedly installed on the upper outer surface of the support plate (7). The runner pipe (28) is fixedly installed on one outer surface of the fixed mold (6). The second push rod (211) slides in the inner walls of the first push rod (24) and the first push block (25). The second electric telescopic rod (214) is fixedly installed on one inner wall of the fixed plate (5).

3. The die-casting mold for the automotive end cover according to claim 1, characterized in that: The uniform cooling assembly (3) includes a cooling box (31). One outer surface of the cooling box (31) is fixedly installed with a water pump (32). One end outer surface of the water pump (32) is fixedly installed with a first hose (33). One end of the first hose (33) is fixedly connected with a U-shaped cooling pipe (34). One end of the U-shaped cooling pipe (34) is fixedly connected with a second hose (35). The outer wall of the U-shaped cooling pipe (34) is fixedly sleeved with a mounting block (36). One outer surface of the mounting block (36) is fixedly installed with a fixing block (37). The inner wall of the fixing block (37) is threadedly connected with a reciprocating lead screw (38). One end outer surface of the reciprocating lead screw (38) is fixedly installed with a second motor (39).

4. The die-casting mold for the automotive end cover according to claim 3, wherein: The cooling box (31) is fixedly installed on the outer surface of the lower side of the bottom plate (1). One end of the second hose (35) is fixedly connected to the surface of the water inlet end of the cooling box (31). Both the first hose (33) and the second hose (35) are arranged on the inner wall of the lower side of the moving plate (9). The mounting block (36) slides on the surface between the moving plate (9) and the moving die (10). The fixed block (37) slides on the inner surface of the protective frame (8). The reciprocating lead screw (38) is rotatably connected to the inner wall of the protective frame (8). The second motor (39) is fixedly installed on one inner wall of the protective frame (8).

5. The die-casting mold for the automotive end cover according to claim 1, wherein: The buffer assembly (4) includes a connecting rod (41). Two fixing threads (42) are symmetrically arranged on the outer walls at both ends of the connecting rod (41). Two threaded sleeves (43) are threadedly connected to the outer surfaces of the two fixing threads (42). Two buffer rings (44) are symmetrically and slidably installed on the outer wall of the connecting rod (41). Two springs (45) are fixedly installed on the outer surface of one side of each of the two buffer rings (44).

6. The die-casting mold for an automotive end cover according to claim 5, characterized in that: The connecting rod (41) is slidably installed in the inner walls of the fixed plate (5) and the moving plate (9). One threaded sleeve (43) is attached to the outer surface of one side of the fixed plate (5). The other threaded sleeve (43) is attached to the outer surface of one side of the moving plate (9). One end of one spring (45) is attached to the outer surface of the other side of the fixed plate (5). One end of the other spring (45) is attached to the outer surface of the other side of the moving plate (9).

7. The die-casting mold for the automotive end cover according to claim 1, wherein: The inner diameter of the flow tube (28) is equal to the diameter of the second push block (212), and the first push rod (24) is activated to make the second push block (212) slide on the inner wall of the flow tube (28).

8. The die-casting mold for the automotive end cover according to claim 5, characterized in that: When the fixed die (6) and the moving die (10) are closed, the two buffer rings (44) are in contact with each other and the two springs (45) are compressed.

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