Demolding and ejecting device for automobile aluminum alloy integrated die-casting spare and accessory parts

Abstract

The invention discloses an automobile aluminum alloy integrated die-casting part demolding ejection device, and relates to the field of die casting, the automobile aluminum alloy integrated die-casting part demolding ejection device comprises a first mounting frame and a first driving motor mounted on one side of the bottom of the first mounting frame, two pushing mechanisms are symmetrically mounted at the top of the first mounting frame, and ejection mechanisms are fixedly mounted at the tops of the pushing mechanisms. According to the invention, the pushing mechanism is driven to realize ejection operation, multiple adjustable ejection rods are arranged to adapt to die castings with different sizes and ensure uniform stress, a gear ring rotates under the limitation of an outer ring, multiple transmission gears are driven to be meshed synchronously, and a rack is further driven to move, so that the coordinated adjustment of the positions of the ejection rods is realized; the ejector rods can be synchronously gathered or dispersed according to the size of a casting, so that uniform distribution of ejection force is effectively guaranteed, deformation or damage caused by uneven stress of the die casting is avoided, and the stability and efficiency in the demolding process are improved through the structural design.

Description

Technical Field

[0001] This invention relates to the field of die casting technology, specifically to a demolding and ejection device for integrated die-cast automotive aluminum alloy parts. Background Technology

[0002] Integrated die casting of aluminum alloys for automobiles is an innovative automotive manufacturing technology that integrates multiple automotive parts into a single aluminum alloy component through a die casting process.

[0003] However, existing technologies suffer from problems such as fixed ejector rod positions, inconvenient adjustment, and uneven ejection force distribution. This makes it easy for excessive local stress, casting deformation, or damage to occur when dealing with die-cast parts of different sizes or complex structures. In addition, a lot of manual adjustment is required when switching molds or replacing products, resulting in low efficiency and poor consistency. Summary of the Invention

[0004] The purpose of this invention is to provide a demolding and ejection device for integrated die-cast automotive aluminum alloy parts, so as to solve the problems of fixed position, inconvenient adjustment, and uneven ejection force distribution mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a demolding and ejection device for integrated die-cast automotive aluminum alloy parts, comprising a first mounting frame and a first drive motor mounted on one side of its bottom, two pushing mechanisms symmetrically mounted on the top of the first mounting frame, and an ejection mechanism fixedly mounted on the top of the pushing mechanism; The ejection mechanism includes a base plate and multiple fixed plates fixedly connected to its side walls. A top plate is fixedly connected to the top of the fixed plate, and an outer ring is fixedly connected to the top of the base plate. A second toothed ring is slidably connected to the inner side of the outer ring. Multiple transmission gears are meshed on the inner side of the second toothed ring. The bottom of the transmission gears is rotatably connected to the top of the base plate. A rack is meshed on one side of the transmission gears. An ejection rod is fixedly connected to the top of the rack. Multiple limiting holes are opened on the surface of the top plate. The top end of the ejection rod passes through the limiting hole and is slidably connected to the limiting hole.

[0006] Preferably, a central ring is fixedly connected to the middle of the base plate, and a plurality of first limiting grooves are formed on the surface of the central ring, and a plurality of second limiting grooves are formed on the surface of the outer ring.

[0007] Preferably, a guide block is fixedly connected to the bottom of the rack, the guide block is slidably connected to the second limiting groove, and the guide block is slidably connected to the first limiting groove.

[0008] Preferably, a second limiting block is fixedly connected to the outer edge of the second toothed ring, and the second limiting block is located inside the notch on one side of the outer ring.

[0009] Preferably, a second mounting bracket is fixedly connected to the bottom of the base plate, a second drive motor is fixedly mounted on the bottom of the second mounting bracket, and a drive rod fixedly connected to the output end of the second drive motor is rotatably connected to the inner side of the second mounting bracket. The top of one end of the drive rod penetrates through the base plate, and the drive rod is fixedly connected to the bottom of the second gear ring.

[0010] Preferably, the pushing mechanism includes a fixed sleeve and a rotating sleeve rotatably mounted on its inner wall. An ejector sleeve is slidably connected to the inner side of the top of the fixed sleeve, and a first limiting block is fixedly connected to one side of the bottom of the ejector sleeve. A sliding groove is provided on the inner wall of the fixed sleeve, and the sliding groove is slidably connected to the first limiting block.

[0011] Preferably, a rotating rod is fixedly connected to the bottom of the rotating sleeve, the rotating rod is rotatably connected to the fixed sleeve, and a drive gear is fixedly connected to the outer surface of the top end of the rotating rod. A first toothed ring is meshed with the outer side of the drive gear, and the first toothed ring is rotatably connected to the inner wall of the fixed sleeve.

[0012] Preferably, driven gears are meshed on both sides of the driving gear, the shaft end of the driven gear is rotatably connected to the fixed sleeve, and the driven gear is meshed with the first gear ring.

[0013] Preferably, the rotating sleeve has a drive groove on its surface, one end of the first limiting block passes through the ejector sleeve and is slidably connected to the drive groove, the rotating sleeve has an installation groove inside, a spring is provided inside the installation groove, and the top of the spring is located in the inner cavity of the ejector sleeve.

[0014] Preferably, a belt drive assembly is fixedly connected to the output end of the first drive motor, and the two ends of the belt drive assembly are fixedly connected to two rotating rods respectively.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, the ejection operation is achieved by driving the pushing mechanism. To adapt to die castings of different sizes and ensure uniform force distribution, an adjustable multi-ejection rod is provided. The toothed ring rotates under the restriction of the outer ring, driving multiple transmission gears to mesh synchronously, further driving the rack to move, thereby achieving coordinated adjustment of the ejection rod position. The ejection rods can be synchronously gathered or dispersed according to the size of the casting, effectively ensuring uniform distribution of ejection force and avoiding deformation or damage caused by uneven force on the die casting. This structural design improves the stability and efficiency of the demolding process.

[0016] 2. In this invention, the drive rod drives the gear ring to rotate, which in turn drives the rack to move linearly via the transmission gear. The rack's movement is restricted by a double limiting structure, including a first limiting groove and a second limiting groove, which effectively ensures its linear running stability and accuracy. At the same time, the second limiting block restricts its rotation angle through the outer ring notch to avoid excessive rotation or structural interference. In addition, the ejector rod moves horizontally under the drive of the rack, and its movement path is constrained by the limiting hole to further prevent tilting or deviation, ensuring the smoothness and reliability of the movement process. The overall structure is achieved through multi-level linkage and limiting cooperation.

[0017] 3. In this invention, by driving the belt drive assembly to operate, two rotating rods are driven to rotate synchronously. The rotating rods mesh with the driven gear, causing the first gear ring to start rotating, which drives the rotating sleeve into the working state. During the rotation of the rotating sleeve, the driving groove applies force to the first limiting block, pushing the ejector sleeve to move up and down linearly along the slide, ensuring stable movement without rotation. At the same time, the internal spring is compressed to store energy. As the rotating sleeve continues to rotate, when the driving groove disengages from the limiting block, the spring releases its elastic force to push the ejector sleeve to reset, realizing the up and down movement of the ejection mechanism, thereby completing the product demolding process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a demolding and ejection device for an integrated die-cast automotive aluminum alloy part according to the present invention. Figure 2 This is a schematic diagram of the ejection mechanism in a demolding and ejection device for an integrated die-cast automotive aluminum alloy part according to the present invention. Figure 3 This is a top view schematic diagram of the ejection mechanism in the demolding and ejection device for an integrated die-cast automotive aluminum alloy part according to the present invention. Figure 4 This is a partial structural diagram of the ejection mechanism in a demolding and ejection device for integrated die-cast automotive aluminum alloy parts according to the present invention. Figure 5 This is a schematic diagram of the pushing mechanism in the ejection device for an integrated die-cast automotive aluminum alloy part according to the present invention. Figure 6 This is a schematic diagram of the disassembled structure of the pushing mechanism in the ejection device for an integrated die-cast aluminum alloy automotive part according to the present invention. Figure 7 This is a partial structural diagram of the pushing mechanism in the ejection device for an integrated die-cast automotive aluminum alloy parts according to the present invention.

[0019] In the diagram: 1. First mounting bracket; 2. First drive motor; 21. Belt drive assembly; 3. Pushing mechanism; 31. Fixed sleeve; 311. Slide groove; 32. Ejection sleeve; 33. First limiting block; 34. Rotating sleeve; 341. Drive groove; 342. Mounting groove; 35. Rotating rod; 351. Drive gear; 36. First gear ring; 37. Driven gear; 38. Spring; 4. Ejection mechanism; 41. Top plate; 411. Limiting hole; 42. Ejection rod; 43. Rack; 431. Guide block; 44. Center ring; 441. First limiting groove; 45. Transmission gear; 46. Outer ring; 461. Second limiting groove; 47. Base plate; 471. Fixed plate; 48. Second mounting bracket; 481. Second drive motor; 482. Drive rod; 49. Second gear ring; 491. Second limiting block. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1: Refer to Figures 1-4 As shown: A demolding and ejection device for an integrated die-cast automotive aluminum alloy part includes a first mounting frame 1 and a first drive motor 2 mounted on one side of its bottom. Two push mechanisms 3 are symmetrically mounted on the top of the first mounting frame 1, and an ejection mechanism 4 is fixedly mounted on the top of the push mechanism 3. The ejection mechanism 4 includes a base plate 47 and a plurality of fixed plates 471 fixedly connected to its side walls. A top plate 41 is fixedly connected to the top of the fixed plate 471. An outer ring 46 is fixedly connected to the top of the base plate 47. A second toothed ring 49 is slidably connected to the inner side of the outer ring 46. A plurality of transmission gears 45 are meshed with the inner side of the second toothed ring 49. The bottom of the transmission gears 45 is rotatably connected to the top of the base plate 47. A rack 43 is meshed with one side of the transmission gears 45. An ejection rod 42 is fixedly connected to the top of the rack 43. A plurality of limiting holes 411 are opened on the surface of the top plate 41. The top end of the ejection rod 42 passes through the limiting hole 411 and is slidably connected to the limiting hole 411.

[0022] In this embodiment, during the die-casting demolding process, the first drive motor 2 drives the pushing mechanism 3 to move, thereby driving the ejection mechanism 4 to complete the ejection operation of the die-casting part. To accommodate die-casting parts of different sizes and shapes and to ensure uniform force distribution during ejection, adjustable multiple ejection rods 42 are designed. By adjusting the positions of these ejection rods 42, deformation or damage to the casting caused by uneven force distribution can be effectively avoided.

[0023] Specifically, the position adjustment of the ejector rod 42 is achieved through the second gear ring 49. The second gear ring 49 is mounted inside the outer ring 46 and rotates within its defined range. During rotation, the second gear ring 49 applies a meshing force to multiple transmission gears 45, causing these gears to rotate synchronously. Each transmission gear 45 meshes with a corresponding rack 43, and the rotation of the gear drives the rack 43 to move in a specific direction.

[0024] The parallel movement of the rack 43 directly changes the position of the ejector rod 42 connected to it. Because multiple racks 43 move simultaneously in linkage, the ejector rod 42 can be adjusted synchronously, allowing it to be arranged in a clustered or dispersed manner according to the geometric characteristics of castings of different sizes. This adjustment method ensures that the force applied to the die-casting by the ejector rod 42 is evenly distributed during the ejection process, effectively avoiding localized stress concentration and ensuring the stability and smooth completion of the overall demolding process.

[0025] Example 2: Figures 2-4 As shown, a central ring 44 is fixedly connected to the middle of the base plate 47. Multiple first limiting grooves 441 are formed on the surface of the central ring 44, and multiple second limiting grooves 461 are formed on the surface of the outer ring 46. A guide block 431 is fixedly connected to the bottom of the rack 43. The guide block 431 is slidably connected to the second limiting grooves 461 and the first limiting grooves 441. A second limiting block 491 is fixedly connected to the outer edge of the second gear ring 49, and the second limiting block 491 is located inside a notch on one side of the outer ring 46. A second mounting bracket 48 is fixedly connected to the bottom of the base plate 47. A second drive motor 481 is fixedly mounted on the bottom of the second mounting bracket 48. A drive rod 482, whose output end is fixedly connected to the inner side of the second mounting bracket 48, is rotatably connected to the second drive motor 481. One end of the drive rod 482 penetrates the base plate 47, and the drive rod 482 is fixedly connected to the bottom of the second gear ring 49.

[0026] In this embodiment, driven by the second drive motor 481, the drive rod 482 begins to rotate, causing the second gear ring 49 to rotate synchronously. Specifically, the second drive motor 481 is connected to the drive rod 482 via a shaft, applying a torque to cause the drive rod 482 to rotate around its axis. The rotation of the drive rod 482 further drives the second gear ring 49, which meshes with it, to rotate. Subsequently, the second gear ring 49 transmits power through the transmission gear 45, causing the rack 43 to move linearly along a set trajectory.

[0027] During the movement of rack 43, its movement path is constrained by multiple structures to ensure accuracy and stability. First, rack 43 moves along the first limiting groove 441, which serves as the main guide rail for rack 43, limiting lateral offset and ensuring the straightness of its movement trajectory. Second, the second limiting groove 461 provides additional guiding constraints for rack 43, effectively preventing tilting or deviation during movement, thereby improving stability and accuracy. This dual limiting design ensures that rack 43 maintains a strictly linear movement trajectory throughout the entire movement process.

[0028] Furthermore, the position and movement of the second limiting block 491 are also restricted by the notch structure on one side of the outer ring 46. This notch acts as a mechanical limiting device, restricting the rotation angle of the second limiting block 491 to prevent excessive rotation or misalignment, ensuring that the components of the mechanical structure cooperate with each other during movement, and avoiding mechanical conflicts or damage caused by abnormal movement.

[0029] During the movement of the ejector rod 42 driven by the rack 43, the movement of the ejector rod 42 is also restricted by the limiting hole 411. The limiting hole 411 provides a clear path restriction for the movement of the ejector rod 42, ensuring that it maintains horizontal linear motion during movement, preventing tilting or deflection, and ensuring the positioning accuracy and operational stability of the ejector rod 42. Through the synergistic effect of this series of structures, the entire transmission system can achieve efficient, precise, and reliable power transmission and linear displacement control.

[0030] Example 3: According to Figures 5-7 As shown, the pushing mechanism 3 includes a fixed sleeve 31 and a rotating sleeve 34 rotatably mounted on its inner wall. An ejector sleeve 32 is slidably connected to the inner side of the top of the fixed sleeve 31, and a first limiting block 33 is fixedly connected to one side of the bottom of the ejector sleeve 32. A sliding groove 311 is formed on the inner wall of the fixed sleeve 31, and the sliding groove 311 is slidably connected to the first limiting block 33. A rotating rod 35 is fixedly connected to the bottom of the rotating sleeve 34, and the rotating rod 35 is rotatably connected to the fixed sleeve 31. A driving gear 351 is fixedly connected to the outer surface of the top of the rotating rod 35, and a first gear ring 36 is meshed with the outer side of the driving gear 351. The first gear ring 36 is rotatably connected to the inner wall of the fixed sleeve 31. Driven gears 37 are meshed with on both sides of the driving gear 351. The shaft end of the driven gear 37 is rotatably connected to the fixed sleeve 31, and the driven gear 37 is meshed with the first gear ring 36. A drive groove 341 is formed on the surface of the rotating sleeve 34. One end of the first limiting block 33 passes through the ejector sleeve 32 and is slidably connected to the drive groove 341. An installation groove 342 is formed inside the rotating sleeve 34, and a spring 38 is provided inside the installation groove 342. The top end of the spring 38 is located in the inner cavity of the ejector sleeve 32. A belt drive assembly 21 is fixedly connected to the output end of the first drive motor 2. Both ends of the belt drive assembly 21 are fixedly connected to two rotating rods 35 respectively.

[0031] In this embodiment, the entire transmission system is first started by the first drive motor 2. The first drive motor 2 drives the belt drive assembly 21 to operate via its output shaft. The belt drive assembly 21 effectively transmits power to the two rotating rods 35, causing them to rotate synchronously. During the rotation of the rotating rods 35, their gear parts mesh with the driven gear 37, applying a stable meshing force. Since the driven gear 37 is directly connected to the first gear ring 36, this meshing force further causes the first gear ring 36 to rotate accordingly.

[0032] As the rotating rod 35 and the first toothed ring 36 rotate in tandem, the rotating sleeve 34 is driven to begin rotating. During rotation, the drive groove 341 on the rotating sleeve 34 applies a lateral force to the first limiting block 33. This force causes the first limiting block 33 to displace accordingly, thereby pushing the ejector sleeve 32 to move in a specific direction. During the lifting and lowering movement of the ejector sleeve 32, the first limiting block 33 is simultaneously constrained by the guiding effect of the sliding groove 311, ensuring that the ejector sleeve 32 can achieve linear movement and preventing any unnecessary rotation or deviation. This design effectively ensures the stability and accuracy of the lifting path of the ejector sleeve 32.

[0033] Furthermore, during the outward ejection process, the ejector sleeve 32 compresses the inner spring 38, causing the spring 38 to undergo compression deformation and store elastic potential energy. This compression process provides energy reserves for the subsequent reset of the ejector sleeve 32.

[0034] As the rotating sleeve 34 continues to rotate, when the drive groove 341 rotates to a position where it no longer applies force to the first limiting block 33, the spring 38 begins to release its stored elastic potential energy, pushing the ejector sleeve 32 to quickly return to its initial position. The lifting and lowering movement of the ejector sleeve 32 and its rapid return action drive the ejection mechanism 4 to move upward as a whole, completing the ejection and demolding operation.

[0035] The device's operation and working principle are as follows: During the die-casting demolding process, the first drive motor 2 drives the pushing mechanism 3, which in turn causes the ejection mechanism 4 to perform the ejection operation. To accommodate die-cast parts of different sizes and ensure uniform force on the die-cast parts during ejection, the positions of multiple ejection rods 42 can be adjusted. During this process, the second gear ring 49 rotates under the constraint of the outer ring 46, simultaneously applying meshing force to multiple transmission gears 45, causing the transmission gears 45 to rotate, which in turn drives the meshing rack 43 to move. The movement of the rack 43 changes the position of the ejection rods 42. When multiple racks 43 move synchronously, the multiple ejection rods 42 can be brought together or dispersed according to the size of the casting, thereby applying uniform force to the casting during the ejection operation and ensuring consistent demolding.

[0036] Driven by the second drive motor 481, the drive rod 482 rotates, causing the second gear ring 49 to rotate, which in turn drives the rack 43 to move through the transmission gear 45. During its movement, the rack 43 is constrained by both the first limiting groove 441 and the second limiting groove 461, thus ensuring its linear movement. In addition, the second limiting block 491 is restricted by the notch on one side of the outer ring 46, thereby controlling the rotation angle of the second gear ring 49.

[0037] When the rack 43 drives the ejector rod 42 to move, it is also constrained by the limiting hole 411 to maintain horizontal movement and avoid tilting.

[0038] The first drive motor 2 drives the belt drive assembly 21 to move, causing the two rotating rods 35 to rotate. The rotating rods 35 mesh with the driven gear 37, driving the first gear ring 36 to rotate, which in turn causes the rotating sleeve 34 to move. When the rotating sleeve 34 rotates, its drive groove 341 applies a force to the first limiting block 33, pushing the ejector sleeve 32 to move. During this process, the first limiting block 33 is constrained by the sliding groove 311, ensuring that the ejector sleeve 32 moves up and down in a straight line without rotation. Simultaneously, the ejector sleeve 32 compresses the internal spring 38.

[0039] When the rotating sleeve 34 continues to rotate until the drive groove 341 no longer applies force to the first limiting block 33, the elastic force of the spring 38 will push the ejector sleeve 32 to reset. Through the lifting and lowering movement and rapid reset of the ejector sleeve 32, the ejection mechanism 4 can be pushed upward to complete the ejection and demolding operation.

[0040] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A demolding and ejection device for an integrated die-cast automotive aluminum alloy part, comprising a first mounting bracket (1) and a first drive motor (2) mounted on one side of its bottom, characterized in that: The first mounting bracket (1) has two symmetrically mounted pushing mechanisms (3) on its top, and the pushing mechanism (3) has a fixedly mounted ejection mechanism (4) on its top. The ejection mechanism (4) includes a base plate (47) and a plurality of fixed plates (471) fixedly connected to its side wall. A top plate (41) is fixedly connected to the top of the fixed plate (471). An outer ring (46) is fixedly connected to the top of the base plate (47). A second toothed ring (49) is slidably connected to the inner side of the outer ring (46). A plurality of transmission gears (45) are meshed with the inner side of the second toothed ring (49). The bottom of the transmission gear (45) is rotatably connected to the top of the base plate (47). A rack (43) is meshed with one side of the transmission gear (45). An ejection rod (42) is fixedly connected to the top of the rack (43). A plurality of limiting holes (411) are opened on the surface of the top plate (41). The top end of the ejection rod (42) passes through the limiting hole (411), and the ejection rod (42) is slidably connected to the limiting hole (411).

2. The ejection device for integral die-cast automotive aluminum alloy parts according to claim 1, characterized in that: A central ring (44) is fixedly connected to the middle of the base plate (47). The surface of the central ring (44) is provided with a plurality of first limiting grooves (441), and the surface of the outer ring (46) is provided with a plurality of second limiting grooves (461).

3. The ejector device for demolding integrated die-cast automotive aluminum alloy parts according to claim 1, characterized in that: The bottom of the rack (43) is fixedly connected to a guide block (431), the guide block (431) is slidably connected to the second limiting groove (461), and the guide block (431) is slidably connected to the first limiting groove (441).

4. The ejector device for demolding integrated die-cast automotive aluminum alloy parts according to claim 1, characterized in that: The second toothed ring (49) is fixedly connected to a second limiting block (491) on its outer edge. The second limiting block (491) is located inside the notch on one side of the outer ring (46).

5. The ejector device for demolding integrated die-cast automotive aluminum alloy parts according to claim 1, characterized in that: The bottom of the base plate (47) is fixedly connected to a second mounting bracket (48), and a second drive motor (481) is fixedly installed at the bottom of the second mounting bracket (48). The inner side of the second mounting bracket (48) is rotatably connected to a drive rod (482) fixedly connected to the output end of the second drive motor (481). One end of the drive rod (482) passes through the top of the base plate (47), and the drive rod (482) is fixedly connected to the bottom of the second toothed ring (49).

6. The ejection device for integral die-cast automotive aluminum alloy parts according to claim 1, characterized in that: The pushing mechanism (3) includes a fixed sleeve (31) and a rotating sleeve (34) rotatably mounted on its inner wall. The top inner side of the fixed sleeve (31) is slidably connected to an ejector sleeve (32). The bottom side of the ejector sleeve (32) is fixedly connected to a first limiting block (33). The inner wall of the fixed sleeve (31) is provided with a sliding groove (311), and the sliding groove (311) is slidably connected to the first limiting block (33).

7. The ejector device for demolding integrated die-cast automotive aluminum alloy parts according to claim 6, characterized in that: The bottom of the rotating sleeve (34) is fixedly connected to a rotating rod (35), the rotating rod (35) is rotatably connected to the fixed sleeve (31), and the outer surface of the top end of the rotating rod (35) is fixedly connected to a drive gear (351). The outer side of the drive gear (351) is meshed with a first toothed ring (36), and the first toothed ring (36) is rotatably connected to the inner wall of the fixed sleeve (31).

8. The ejector device for demolding integrated die-cast automotive aluminum alloy parts according to claim 7, characterized in that: Both sides of the driving gear (351) are meshed with driven gears (37). The shaft end of the driven gear (37) is rotatably connected to the fixed sleeve (31), and the driven gear (37) is meshed with the first gear ring (36).

9. The ejector device for demolding integrated die-cast automotive aluminum alloy parts according to claim 8, characterized in that: The rotating sleeve (34) has a drive groove (341) on its surface. One end of the first limiting block (33) passes through the ejector sleeve (32) and is slidably connected to the drive groove (341). The rotating sleeve (34) has an installation groove (342) inside. A spring (38) is provided inside the installation groove (342), and the top of the spring (38) is located in the inner cavity of the ejector sleeve (32).

10. The ejector device for demolding integrated die-cast automotive aluminum alloy parts according to claim 1, characterized in that: The output end of the first drive motor (2) is fixedly connected to a belt drive assembly (21), and the two ends of the belt drive assembly (21) are fixedly connected to two rotating rods (35) respectively.

Images