Graphite die forming machine with ejection structure

Abstract

The utility model discloses a graphite die forming machine with an ejection structure, which comprises a frame body, a lower forming die is arranged in the middle of the frame body, an ejection plate is vertically connected in the lower forming die in a sliding manner, an upper forming die capable of moving up and down is arranged at the upper end of the frame body, and the graphite die forming machine comprises the ejection mechanism; the ejection mechanism comprises an ejection plate, springs and knocking plates, the ejection plate is connected to the interior of the lower forming die in a sliding mode, the springs are arranged between the upper surface of the ejection plate and the lower surface of the ejection plate, and the knocking plates are connected to the lower surface of the ejection plate in a sliding mode. The ejection acting force is gradually increased through deformation of the elastic component, the inner wall of the forming die is continuously knocked in the ejection process, adhesion between the graphite die and the inner wall of the forming die is reduced, the probability that the graphite die is damaged in the ejection process is reduced, and the forming quality of the graphite die is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of graphite mold technology, specifically to a graphite mold forming machine with an ejection structure. Background Technology

[0002] Graphite molds are molds made from graphite materials, possessing excellent properties such as high temperature resistance, good thermal conductivity, strong chemical stability, corrosion resistance, and wear resistance. Graphite molds are fundamental process equipment used in industrial production and are widely applied in various industrial fields. Their high temperature and corrosion resistance make them widely used in non-ferrous metal casting, glass manufacturing, electronics industry, automotive parts manufacturing, aerospace, and other fields. In the production process of graphite molds, forming is mostly achieved using mechanical means, such as pressing and extrusion, with strict control of temperature and pressure during the forming process. In existing technologies, after the graphite mold is formed, an ejector structure is often set at the bottom of the forming mold to facilitate demolding. The upward movement of the ejector plate applies an upward thrust to the formed graphite mold, pushing it out. However, in some cases, the graphite mold adheres tightly to the inner wall of the forming mold during ejection, and direct ejection can easily damage the graphite mold, affecting the forming quality. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a graphite mold forming machine with an ejection structure. By utilizing the deformation of the elastic component to gradually increase the ejection force, the inner wall of the forming mold is continuously struck during the ejection process, reducing the adhesion between the graphite mold and the inner wall of the forming mold, reducing the probability of damage to the graphite mold during the ejection process, and ensuring the forming quality of the graphite mold. This can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a graphite mold forming machine with an ejection structure, including a frame, a lower forming mold in the middle of the frame, an ejection plate vertically slidably connected inside the lower forming mold, and an upper forming mold that can move up and down at the upper end of the frame, including an ejection mechanism;

[0005] Ejection mechanism: It includes a top plate, springs, and striking plates. The top plate is slidably connected to the inside of the lower forming mold. Springs are respectively provided between the upper surface of the top plate and the lower surface of the ejection plate. The striking plates are slidably connected to the lower surface of the ejection plate. By utilizing the deformation of the elastic components, the ejection force is gradually increased. During the ejection process, the inner wall of the forming mold is continuously struck, reducing the adhesion between the graphite mold and the inner wall of the forming mold, reducing the probability of damage to the graphite mold during the ejection process, and ensuring the forming quality of the graphite mold.

[0006] Furthermore, the upper end of the frame is provided with electro-hydraulic actuators, and a forming upper mold is provided between the lower ends of the telescopic ends of the two electro-hydraulic actuators. A microcontroller is provided on the surface of the frame. The input end of the microcontroller is electrically connected to an external power source, and the input end of the electro-hydraulic actuator is electrically connected to the output end of the microcontroller to control the start and stop of the overall device.

[0007] Furthermore, the ejection mechanism also includes a support plate and sliding columns. The support plates are respectively disposed on the lower surface of the ejection plate, and sliding columns are slidably connected in the sliding holes at the lower end of the support plates. Three adjacent sliding columns form a group, and the striking plate is respectively disposed between the ends of the three sliding columns in the same group to provide sliding support for the movement of the striking plate.

[0008] Furthermore, the ejection mechanism also includes a return spring, which is respectively disposed between the striking plate and the support plate, and is movably sleeved on the outer arc surface of the sliding column to provide power for the return of the striking plate.

[0009] Furthermore, the ejection mechanism also includes a turntable, a push plate, and a pull plate. The turntable is rotatably connected to the middle of the lower surface of the ejection plate. Push plates are respectively provided on the outer edge of the upper surface of the turntable. Pull plates are respectively provided at the lower end of the striking plate. The arc-shaped plate at the end of the pull plate is installed in conjunction with the push plate to push the striking plate to reciprocate.

[0010] Furthermore, a motor is provided in the middle of the lower surface of the ejector plate, and a turntable is located at the lower end of the motor's output shaft. Electric push rods are respectively provided at the lower end of the forming lower mold. The upper ends of the telescopic ends of the two electric push rods are fixedly connected to the top plate. The input ends of the motor and the electric push rods are electrically connected to the output end of the microcontroller to provide power for the movement of the striking plate and the top plate.

[0011] Furthermore, guide posts are provided at the four corners of the lower surface of the ejector plate. The lower ends of the guide posts pass through the guide holes inside the adjacent springs and on the surface of the top plate, respectively, to provide guidance and support for the extension and retraction of the springs.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This graphite mold forming machine with an ejection structure has the following advantages:

[0013] By utilizing the deformation of the elastic component to gradually increase the ejection force, the inner wall of the forming mold is continuously struck during the ejection process, reducing the adhesion between the graphite mold and the inner wall of the forming mold, lowering the probability of damage to the graphite mold during the ejection process, and ensuring the forming quality of the graphite mold. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a structural schematic diagram of the ejection mechanism of this utility model, viewed from the front.

[0016] Figure 3 This is a top view of the ejection mechanism of this utility model.

[0017] In the diagram: 1. Frame, 2. Lower forming mold, 3. Upper forming mold, 4. Ejector plate, 5. Ejector mechanism, 51. Top plate, 52. Spring, 53. Support plate, 54. Sliding column, 55. Striking plate, 56. Return spring, 57. Turntable, 58. Push plate, 59. Pull plate, 6. Motor, 7. Electric push rod, 8. Guide column, 9. Electro-hydraulic push rod, 10. Microcontroller. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-3 This embodiment provides a technical solution: a graphite mold forming machine with an ejection structure, including a frame 1, which provides support for the setting of the forming components. A lower forming mold 2 is provided in the middle of the frame 1. An ejection plate 4 is vertically slidably connected inside the lower forming mold 2. A higher forming mold 3 that can move up and down is provided at the upper end of the frame 1. The raw material is poured into the lower forming mold 2. When the upper forming mold 3 enters the lower forming mold 2, under the support of the ejection plate 4, the upper forming mold 3 applies pressure to the raw material to press it into shape. Electro-hydraulic push rods 9 are respectively provided at the upper end of the frame 1. The upper forming mold 3 is provided between the lower ends of the telescopic ends of the two electro-hydraulic push rods 9 to provide power for the downward movement of the upper forming mold 3. A microcontroller 10 is provided on the surface of the frame 1. The input end of the microcontroller 10 is electrically connected to an external power source to control the start and stop of the overall device. The input end of the electro-hydraulic push rod 9 is electrically connected to the output end of the microcontroller 10. The machine includes an ejection mechanism 5.

[0020] Ejection mechanism 5: It includes a top plate 51, springs 52, and striking plates 55. The top plate 51 is slidably connected to the inside of the lower mold 2. Springs 52 are respectively provided between the upper surface of the top plate 51 and the lower surface of the ejection plate 4. The striking plates 55 are slidably connected to the lower surface of the ejection plate 4. When the top plate 51 moves upward, the springs 52 contract to generate elastic force. Under the action of the elastic force of the springs 52, an upward force is applied to the ejection plate 4, causing the ejection plate 4 to push the formed graphite mold upward and eject the formed graphite mold. During the ejection process, the reciprocating movement of the striking plates 55 strikes the inner wall of the lower mold 2, reducing the adhesion between the graphite mold and the inner wall of the lower mold 2. To reduce the probability of damage during the ejection process, the ejection mechanism 5 also includes a support plate 53 and sliding columns 54. The support plate 53 is respectively disposed on the lower surface of the ejection plate 4, and each of the sliding holes at the lower end of the support plate 53 is slidably connected to a sliding column 54. Three adjacent sliding columns 54 form a group, and a striking plate 55 is respectively disposed between the ends of the three sliding columns 54 in the same group, providing sliding support for the movement of the striking plate 55. The ejection mechanism 5 also includes a return spring 56, which is respectively disposed between the striking plate 55 and the support plate 53. The return spring 56 is movably sleeved on the outer arc surface of the sliding column 54. The ejection mechanism 5 also includes a turntable 57, a push plate 58, and a pull plate 59. The turntable 57 is rotatably connected to the ejection plate. At the center of the lower surface of the turntable 57, push plates 58 and pull plates 59 are respectively provided on the outer edge of the upper surface of the turntable 57. The arc-shaped plate at the end of the pull plate 59 is fitted with the push plate 58. When the turntable 57 rotates, during the rotation, when the push plate 58 contacts the arc-shaped plate at the end of the pull plate 59, the push plate 58 applies a force to the pull plate 59 to overcome the elastic force of the return spring 56, causing the pull plate 59 to drive the knocking plate 55 to move closer to the center of the ejector plate 4. When the push plate 58 separates from the arc-shaped plate at the end of the pull plate 59, the knocking plate 55 is reset under the elastic force of the return spring 56, and the inner wall of the lower mold 2 is struck, reducing the impact between the graphite mold and the inner wall of the lower mold 2. The adhesion to the inner wall of the lower forming mold 2 reduces the probability of damage during the ejection process. A motor 6 is located in the middle of the lower surface of the ejector plate 4, and a turntable 57 is located at the lower end of the output shaft of the motor 6. Electric push rods 7 are respectively provided at the lower end of the lower forming mold 2. The upper ends of the telescopic ends of the two electric push rods 7 are fixedly connected to the top plate 51. The input ends of the motor 6 and the electric push rods 7 are electrically connected to the output end of the microcontroller 10, providing power for the rotation of the turntable 57 and the movement of the top plate 51. Guide posts 8 are provided at the four corners of the lower surface of the ejector plate 4. The lower ends of the guide posts 8 pass through the guide holes inside the adjacent springs 52 and the surface of the top plate 51, respectively, providing guidance and support for the extension and retraction of the springs 52 and the movement of the top plate 51.

[0021] The working principle of the graphite mold forming machine with an ejector structure provided by this utility model is as follows: During the graphite mold production process, the raw material is poured into the lower forming mold 2. The single-chip microcomputer 10 starts the electro-hydraulic push rod 9. The telescopic end of the electro-hydraulic push rod 9 drives the upper forming mold 3 to move downward. After the upper forming mold 3 enters the lower forming mold 2, under the support of the ejector plate 4, the upper forming mold 3 applies pressure to the raw material to press it into shape. After forming is completed, the upper forming mold 3 resets. At the same time, the electric push rod 7 is started. The telescopic end of the electric push rod 7 drives the top plate 51 to move upward. Under the guidance and support of the guide column 8, the spring 52 contracts to generate elastic force. Under the action of the elastic force of the spring 52, an upward force is applied to the ejector plate 4, causing the ejector plate to move upward. 4. Push the formed graphite mold upward to eject it. During the ejection process, start motor 6. The output shaft of motor 6 drives turntable 57 to rotate. During the rotation, when push plate 58 contacts the arc plate at the end of pull plate 59, push plate 58 applies force to pull plate 59 to overcome the elastic force of return spring 56, causing pull plate 59 to drive striking plate 55 to move closer to the center of ejection plate 4. When push plate 58 separates from the arc plate at the end of pull plate 59, under the elastic force of return spring 56, striking plate 55 resets and strikes the inner wall of lower mold 2, reducing the adhesion between graphite mold and the inner wall of lower mold 2 and reducing the probability of damage during ejection.

[0022] It is worth noting that the microcontroller 10 disclosed in the above embodiments can be an AT89C4051 microcontroller, while the electro-hydraulic actuator 9, motor 6, and electric actuator 7 can be freely configured according to the actual application scenario. The electro-hydraulic actuator 9 can be a DYTZ-C type electro-hydraulic actuator, the motor 6 can be a 3M57-42A type stepper motor, and the electric actuator 7 can be an ANT-52 type electric actuator. The microcontroller 10 controls the operation of the electro-hydraulic actuator 9, motor 6, and electric actuator 7 using methods commonly used in the prior art.

[0023] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A graphite mold forming machine with ejection structure, comprising a frame body (1), a forming lower die (2) is arranged in the middle of the frame body (1), a top plate (4) is vertically and slidingly connected in the inside of the forming lower die (2), and a forming upper die (3) which can move up and down is arranged at the upper end of the frame body (1), characterized in that: Including the ejection mechanism (5); Ejection mechanism (5): It includes a top plate (51), a spring (52) and a striking plate (55). The top plate (51) is slidably connected to the inside of the lower forming mold (2). A spring (52) is provided between the upper surface of the top plate (51) and the lower surface of the ejection plate (4). The striking plates (55) are slidably connected to the lower surface of the ejection plate (4).

2. A graphite mold forming machine having an ejection structure according to claim 1, characterized in that: The upper end of the frame (1) is provided with electro-hydraulic push rods (9), and a forming upper mold (3) is provided between the lower ends of the telescopic ends of the two electro-hydraulic push rods (9). A microcontroller (10) is provided on the surface of the frame (1). The input end of the microcontroller (10) is electrically connected to an external power source, and the input end of the electro-hydraulic push rod (9) is electrically connected to the output end of the microcontroller (10).

3. The graphite mold forming machine with an ejection structure according to claim 1, characterized in that: The ejection mechanism (5) further includes a support plate (53) and a sliding column (54). The support plate (53) is respectively disposed on the lower surface of the ejection plate (4). The sliding column (54) is slidably connected in the sliding hole at the lower end of the support plate (53). Three adjacent sliding columns (54) form a group. The striking plate (55) is respectively disposed between the ends of the three sliding columns (54) in the same group.

4. The graphite mold forming machine with the ejection structure according to claim 3, characterized in that: The ejection mechanism (5) also includes a return spring (56), which is respectively disposed between the striking plate (55) and the support plate (53), and the return spring (56) is movably sleeved on the outer arc surface of the sliding column (54).

5. The graphite mold forming machine with a knock-out structure according to claim 2, characterized in that: The ejection mechanism (5) also includes a turntable (57), a push plate (58), and a pull plate (59). The turntable (57) is rotatably connected to the middle of the lower surface of the ejection plate (4). The upper surface of the turntable (57) is provided with push plates (58) respectively. The pull plates (59) are respectively set at the lower end of the striking plate (55). The arc-shaped plate at the end of the pull plate (59) is installed in conjunction with the push plate (58).

6. A graphite mold forming machine having an ejection structure according to claim 5, characterized in that: A motor (6) is provided in the middle of the lower surface of the ejector plate (4), and a turntable (57) is provided at the lower end of the output shaft of the motor (6). An electric push rod (7) is provided at the lower end of the forming lower mold (2). The upper ends of the telescopic ends of the two electric push rods (7) are fixedly connected to the top plate (51). The input ends of the motor (6) and the electric push rods (7) are electrically connected to the output end of the microcontroller (10).

7. The graphite mold forming machine with a knock-out structure according to claim 1, characterized in that: The lower surface of the ejector plate (4) is provided with guide posts (8) at all four corners. The lower ends of the guide posts (8) pass through the guide holes inside the adjacent springs (52) and on the surface of the top plate (51), respectively.

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