Hydraulic ejection structure of plastic mold

Abstract

The utility model relates to mould manufacturing technical field discloses a hydraulic ejection structure of plastic mould, including operation platform, the top fixedly connected with the template of operation platform, the bottom inner wall fixedly connected with a plurality of contraction columns of template, a plurality of the top fixedly connected with the top plate one of contraction column, the top fixedly connected with a plurality of support columns of top plate one, a plurality of the top fixedly connected with the top plate two of support column, the left and right side inner wall of template is all fixedly connected with fixed block, the similar one side inner wall of two fixed blocks is all rotatably connected with pivot no.

Description

Technical Field

[0001] This utility model relates to the field of mold manufacturing technology, and in particular to a hydraulic ejection structure for a plastic mold. Background Technology

[0002] A plastic mold is a specialized tool used for the mass production of plastic products. Through a pre-designed cavity and core structure, molten plastic material is injected into the mold cavity under high pressure and high temperature by an injection molding machine. After the material cools and solidifies, the mold is opened to obtain a plastic product that perfectly matches the shape of the cavity. Its core function is to achieve standardized, efficient, and high-precision molding of plastic products. It is widely used in many fields such as automobiles, electronics, home appliances, medical devices, and daily necessities, and is an indispensable key piece of equipment in plastic industrial production, directly determining the shape, dimensional accuracy, and surface quality of plastic products.

[0003] When the hydraulic ejection structure of a plastic mold is in operation, pressurized oil is supplied by the injection molding machine or an independent hydraulic system to drive the piston of the hydraulic cylinder inside the mold to generate axial thrust. This thrust drives the ejector plate, ejector pins, and other ejection components to move directionally along the guide device. The ejector pins contact the plastic part and apply ejection force to overcome the clamping force between the plastic part and the mold cavity or core, thus ejecting the cooled and solidified plastic part from the cavity and completing the demolding action. After ejection, the hydraulic system supplies oil in the reverse direction, causing the hydraulic cylinder to drive the ejection components to reset, preparing for the next injection molding cycle.

[0004] However, in the existing technology, the hydraulic ejection structure of some plastic molds has the problem of easy damage to plastic parts during use. The ejection component lacks a precise force control mechanism. If the ejection force is too large, the instantaneous impact force generated when it comes into contact with the plastic part can cause cracks or even breakage in the weak parts of the plastic part. Or the ejection force is unevenly distributed, resulting in local stress concentration on the plastic part and causing deformation. When the ejection speed is too fast, the plastic part may collide with the mold or ejection component due to inertia at the moment of leaving the mold, resulting in scratches and abrasions, which damages the surface quality. Especially for plastic parts with high surface requirements, such damage will directly lead to product scrap and seriously affect production efficiency. Therefore, a hydraulic ejection structure for plastic molds is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a hydraulic ejection structure for plastic molds, aiming to improve the problem of easy damage to plastic parts in the hydraulic ejection structure of plastic molds in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a hydraulic ejection structure for a plastic mold, comprising an operating table, a template fixedly connected to the top of the operating table, multiple shrinkage columns fixedly connected to the inner wall of the bottom end of the template, a top plate I fixedly connected to the top of the multiple shrinkage columns, multiple support columns fixedly connected to the top of the top plate I, a top plate II fixedly connected to the top of the multiple support columns, fixing blocks fixedly connected to the inner walls of both the left and right sides of the template, a rotating shaft I rotatably connected to the inner walls of two adjacent sides of two fixing blocks, a connecting plate I fixedly connected to the outside of two rotating shafts I, a rotating shaft II fixedly connected to the bottom end of two adjacent sides of two connecting plates I, a connecting plate II fixedly connected to the adjacent sides of two rotating shafts II, a support plate fixedly connected to the adjacent sides of two connecting plates II, a rotating shaft III rotatably connected to the inner walls of two adjacent sides of two support plates, and an auxiliary ejection component fixedly connected to the right side of the operating table.

[0007] As a further description of the above technical solution: the auxiliary component includes a power compartment, the left side of which is fixedly connected to the right side of the operating table, a connecting pipe 1 fixedly connected to the top of the power compartment, a connecting pipe 2 fixedly connected to the right side of the operating table, a movable ring fixedly connected to the outer right side of the connecting pipe 2, a plurality of push blocks fixedly connected to the inner wall of the movable ring, a connecting block slidably connected to adjacent sides of the push blocks, a limit block fixedly connected to adjacent sides of the plurality of connecting blocks, a fixing plate fixedly connected to the inner wall of the top of the movable ring, a limit post fixedly connected to the inner walls of both sides of the fixing plate, a plurality of limit plates fixedly connected to the inner wall of the right side of the connecting pipe 2, a connecting compartment fixedly connected to the left side of the connecting pipe 2, a plurality of pipe 1 fixedly connected to the left side of the connecting compartment, a pipe 2 fixedly connected to the left side of the plurality of pipe 1, and a plurality of air outlets fixedly connected to the top of the plurality of pipe 2.

[0008] As a further description of the above technical solution: push plates are fixedly connected to the outside of both of the two rotating shafts three, and multiple push rods are fixedly connected to the top of the top plate two.

[0009] As a further description of the above technical solution: the external parts of the plurality of top rods are slidably connected to the inner wall of the top of the template, and the bottom ends of the two rotating shafts are slidably connected to the top of the top plate.

[0010] As a further description of the above technical solution: the top ends of the two push plates are fixedly connected to the bottom end of the top plate two, and slots are opened on both the left and right sides of the top plate one. The outer sides of the two support plates are slidably connected to the inner walls of the left and right sides of the top plate one.

[0011] As a further description of the above technical solution: the bottom ends of the two fixing plates are fixedly connected to the top end of the second connecting pipe, and the right inner wall of the second connecting pipe is fixedly connected to the left outer side of the first connecting pipe.

[0012] As a further description of the above technical solution: multiple limiting slots are provided on the left outer side of the connecting pipe one, and the adjacent sides of the multiple limiting blocks are fixedly connected to the left outer side of the connecting pipe one.

[0013] As a further description of the above technical solution: the external of the plurality of air outlets is fixedly connected to the inner wall of the top of the template, the external of the plurality of pipes II is fixedly connected to the inner wall of the top of the template, and the external of the connecting chamber is fixedly connected to the inner wall of the top of the operating table.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the top plate drives the rotating shaft to move, which in turn pushes the top plate to move upward to achieve a first ejection. At the same time, the rotating shaft slides on the top of the top plate, which drives the connecting plate to move. The support plate slides on the inner wall of the top plate, which further drives the push plate to push the top plate to complete a second ejection. This achieves a smooth and gradual ejection of the plastic part, avoiding damage to the plastic part due to excessive force or uneven force during a single ejection, and improving the quality of the finished plastic part.

[0016] 2. In this utility model, the sliding of the push block is driven by the moving ring, so that the connecting block pushes the limiting block into the limiting slot of the connecting pipe one, thereby realizing the convenient fixation of the connecting pipe two and the connecting pipe one. At the same time, the power chamber delivers gas to the connecting chamber through the connecting pipe one and the connecting pipe two, and the gas is sprayed out from the gas outlet through the pipe one and the pipe two to assist the demolding of the plastic part, thereby realizing the rapid installation and fixation of the auxiliary components and efficient demolding assistance, improving the convenience of operation and the demolding effect of the plastic part. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of a hydraulic ejection structure for a plastic mold proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the top plate of a hydraulic ejection structure for a plastic mold proposed in this utility model.

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a schematic diagram of the power chamber of a hydraulic ejection structure for a plastic mold proposed in this utility model;

[0021] Figure 5 for Figure 4Enlarged view of point B in the middle;

[0022] Figure 6 for Figure 4 Enlarged view of point C in the middle.

[0023] Legend:

[0024] 1. Operating platform; 2. Template; 3. Retraction column; 4. Top plate one; 5. Support column; 6. Top plate two; 7. Fixing block; 8. Rotating shaft one; 9. Connecting plate one; 10. Rotating shaft two; 11. Connecting plate two; 12. Support plate; 13. Rotating shaft three; 14. Push plate; 15. Connecting pipe one; 16. Connecting pipe two; 17. Moving ring; 18. Push block; 19. Connecting block; 20. Limiting block; 21. Limiting plate; 22. Fixing plate; 23. Limiting column; 24. Connecting compartment; 25. Pipe one; 26. Pipe two; 27. Air outlet; 28. Push rod; 29. ​​Power compartment. Detailed Implementation

[0025] 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.

[0026] Reference Figures 1 to 3 This utility model provides an embodiment of a hydraulic ejection structure for a plastic mold, including an operating platform 1. A template 2 is fixedly connected to the top of the operating platform 1. The operating platform 1 provides a stable installation foundation and support platform for the entire mold structure, capable of withstanding various forces generated during injection and ejection, ensuring the overall stability of the mold during operation. Multiple contraction columns 3 are fixedly connected to the inner wall of the bottom end of the template 2. During the ejection structure's movement, these columns can extend and retract with the rise and fall of the top plate 4, providing support and guidance for the top plate 4. The top of the multiple contraction columns 3 is fixedly connected to the top plate 4, which is an intermediate component connecting the contraction columns 3 and the support columns 5. The extension and retraction of the contraction columns 3 directly drives the top plate 4 to move up and down. Multiple support columns 5 are fixedly connected to the top of the top plate 4, transmitting the force from the top plate 4 to the second top plate 6, causing the second top plate 6 to move synchronously.

[0027] Top plates 6 are fixedly connected to the tops of multiple support columns 5. Top plates 6 are key components connecting support columns 5 and push rods 28. The movement of support columns 5 drives top plates 6 to move up and down, thereby driving push rods 28 to push out or reset. Fixing blocks 7 are fixedly connected to the inner walls of both sides of template 2. Fixing blocks 7 are fixed to the inner walls of template 2, providing a stable mounting point for rotating shaft 8, allowing rotating shaft 8 to rotate stably around it. Rotating shafts 8 are rotatably connected to the inner walls of two adjacent sides of the two fixing blocks 7. Rotating shafts 8 rotate around fixing blocks 7, thereby driving connecting plates 9 to swing, providing a power transmission path for the movement of subsequent components. Connecting plates 9 are fixedly connected to the outside of both rotating shafts 8. Connecting plates 9 swing under the drive of rotating shafts 8, thereby driving connecting plates 11 to move through rotating shaft 10, converting the rotation of rotating shaft 8 into the translation or swing of connecting plates 11, realizing the redirection and transmission of power.

[0028] Two connecting plates 9 are each fixedly connected to a rotating shaft 10 on their adjacent bottom ends. When connecting plate 9 swings, rotating shaft 10 moves accordingly, thereby driving connecting plate 11 to move accordingly, ensuring efficient power transmission between connecting plate 9 and connecting plate 11. Two rotating shafts 10 are each fixedly connected to a connecting plate 11 on their adjacent sides. Connecting plate 11 moves under the drive of rotating shaft 10, thereby driving support plate 12 to slide within the groove of top plate 4, transmitting power to support plate 12, and providing assistance for push plate 14 to push top plate 6. Two connecting plates 11 are each fixedly connected to a support plate 12 on their adjacent sides. The sliding of support plate 12 provides a stable movement track for push plate 14, ensuring the effectiveness of the secondary ejection action. A pivot 13 is rotatably connected to the inner wall of each of the two support plates 12 on an adjacent side. The pivot 13 connects the support plate 12 and the push plate 14. The sliding of the support plate 12 drives the pivot 13 to move, which in turn causes the push plate 14 to generate a force that pushes the top plate 6. This ensures sufficient force for the secondary ejection. An auxiliary ejection component is fixedly connected to the right side of the operating table 1.

[0029] Reference Figures 4 to 6 The auxiliary components include a power chamber 29, and the control panel 1 provides a mounting support point for the power chamber 29. The connection between the two ensures the stability of the power transmission path. A connecting pipe 15 is fixedly connected to the top of the power chamber 29, transmitting the air pressure generated by the power chamber 29 to a connecting pipe 16. The tight connection between the connecting pipe 15 and the power chamber 29 prevents energy leakage at the transmission starting point. A connecting pipe 16 is fixedly connected to the right side of the control panel 1. The connecting pipe 16 receives energy from the connecting pipe 15 and transmits it to the connecting chamber 24, while also providing a mounting carrier for components such as the moving ring 17. A moving ring 17 is fixedly connected to the outer right side of the connecting pipe 16. Sliding the ring drives the push block 18 to move, thereby triggering the fixing action of the limit block 20, facilitating later maintenance and component replacement.

[0030] Multiple push blocks 18 are fixedly connected to the inner wall of the moving ring 17. During sliding, these push blocks exert a pushing force on the connecting block 19, causing the connecting block 19 to drive the limiting block 20 to move, ensuring the synchronous movement of the limiting block 20 and ensuring a stable and reliable fixing effect. Connecting blocks 19 are slidably connected to adjacent sides of each push block 18, transmitting the pushing force of the push block 18 to the limiting block 20. Simultaneously, the push blocks 18 themselves can slide in a certain direction under the action of the push blocks 18, ensuring that the pushing force is efficiently transmitted to the limiting block 20, achieving the limiting and fixing function. Limiting blocks 20 are fixedly connected to adjacent sides of each connecting block 19. Under the push of the connecting blocks 19, they engage with the limiting slots outside the connecting tube 15, thereby fixing the connecting tube 15 and the connecting tube 2 16 together, preventing energy leakage and component damage. A fixing plate 22 is fixedly connected to the inner wall of the top of the moving ring 17, limiting the position of the limiting post 23 through its fixed state, ensuring that the limiting post 23 can properly perform its limiting function.

[0031] Limiting posts 23 are fixedly connected to the inner walls of both sides of the fixed plate 22. When the moving ring 17 slides to a specific position, they cooperate with the limiting plates 21 to limit the excessive sliding of the moving ring 17, preventing the push block 18 from applying excessive force to the connecting block 19 and damaging the components. Multiple limiting plates 21 are fixedly connected to the inner wall of the right side of the connecting pipe 2 16 to ensure that the sliding of the moving ring 17 is within a safe range and to ensure that the fixing action of the limiting block 20 is precise and controllable. A connecting chamber 24 is fixedly connected to the left side of the connecting pipe 2 16 to distribute the energy from the connecting pipe 2 16 to multiple pipes 1 25, achieving uniform energy distribution and ensuring that each pipe 1 25 receives an equal amount of gas. Multiple pipes 1 25 are fixedly connected to the left side of the connecting chamber 24. Through its tubular structure, it guides the energy flow direction. The arrangement of multiple pipes 1 25 allows energy to be transferred to pipes 2 26 at different positions simultaneously, expanding the energy coverage and providing power support for multiple gas outlets 27.

[0032] Multiple pipes 25 are fixedly connected to pipes 26 on their left sides. Pipes 26 receive the energy from pipes 25 and deliver it to the air outlets 27, ensuring that the energy accurately reaches the air outlets 27 and providing direct power for demolding assistance. Multiple air outlets 27 are fixedly connected to the top of multiple pipes 26. These air outlets 27 are distributed at key positions on the inner wall of the top of the mold plate 2, which can specifically assist in demolding of various parts of the plastic part, avoiding damage to the plastic part due to excessive force and improving the demolding success rate.

[0033] Reference Figures 1 to 3Both rotating shafts 13 are externally fixedly connected to push plates 14 to ensure that the top plate 2 6 is subjected to balanced force during its ascent, preventing tilting of the top plate 2 6 due to excessive force on one side, and ensuring the stability of the ejection action of the ejector rods 28. Multiple ejector rods 28 are fixedly connected to the top of the top plate 2 6. Pushed by the top plate 2 6, they slide along the inner wall of the top of the mold plate 2, directly contacting the plastic part and ejecting it from the cavity. The external sliding connections of the multiple ejector rods 28 to the inner wall of the top of the mold plate 2 restrict the direction of movement of the ejector rods 28, ensuring that the ejector rods 28 can only eject and reset in the vertical direction.

[0034] The bottom ends of the two rotating shafts 10 are slidably connected to the top end of the top plate 4. This sliding connection allows the movement of the rotating shafts 10 to match the lifting and lowering of the top plate 4, coordinating the movement rhythm of each linked component, avoiding movement interference, and ensuring smooth operation of the ejection structure. The top ends of the two push plates 14 are fixedly connected to the bottom end of the top plate 6, efficiently transmitting the power of the push plates 14 to the top plate 6, driving the top plate 6 and the push rod 28 to complete the ejection action. Grooves are provided on both the left and right sides of the top plate 4 to ensure precise and controllable movement of the support plate 12, providing stable power support for the push plates 14. The outer surfaces of the two support plates 12 are slidably connected to the inner walls of the left and right sides of the top plate 4, enhancing the overall linkage of the ejection structure and improving the reliability of the secondary ejection action.

[0035] The bottom ends of the two fixing plates 22 are fixedly connected to the top end of the connecting pipe 2 16. Their fixed state allows the limiting post 23 to perform a limiting action based on the connecting pipe 2 16, ensuring accurate engagement between the limiting post 23 and the limiting plate 21, thus effectively limiting the movement of the moving ring 17. The right inner wall of the connecting pipe 2 16 is fixedly connected to the left outer side of the connecting pipe 1 15, allowing the gas output from the power chamber 29 to flow smoothly from the connecting pipe 1 15 into the connecting pipe 2 16, ensuring the airtightness of the energy transmission path. Multiple limiting slots are provided on the left outer side of the connecting pipe 1 15. When the limiting block 20 engages in the limiting slot, it restricts the relative movement of the connecting pipe 1 15 and the connecting pipe 2 16, thus fixing them in place.

[0036] Multiple limiting blocks 20 are fixedly connected to the outer left side of connecting pipe 15 on adjacent sides. The mechanical engagement of the limiting blocks 20 with the limiting slots firmly fixes connecting pipe 15 and connecting pipe 26 together. The simultaneous action of multiple limiting blocks 20 can evenly distribute the force on the connecting pipe, preventing loosening during power transmission. Multiple air outlets 27 are externally fixedly connected to the inner top wall of the template 2, allowing the air outlets 27 to be precisely aligned with the gap between the plastic part and the cavity, accurately spraying the gas from pipe 26 to the key demolding position, improving the targeting and efficiency of auxiliary demolding, and effectively reducing the demolding resistance of the plastic part.

[0037] Multiple pipes 26 are externally fixedly connected to the inner wall of the top of the template 2, enabling the pipes 26 to stably transfer gas from pipe 25 to the outlet 27 and preventing the pipes 26 from shifting due to vibration during mold operation. The connecting chamber 24 is externally fixedly connected to the inner wall of the top of the operating table 1. The fixing method ensures the tightness of the connection between the connecting chamber 24 and pipe 25 and connecting pipe 16, improves the uniformity and stability of gas distribution, and provides a guarantee for the coordinated operation of each outlet 27.

[0038] Working principle: When top plate 4 is started, it drives shaft 2 10 to rotate. Shaft 2 10 drives push plate 14 to move upward. Push plate 14 pushes top plate 2 6 to move upward. Top plate 2 6 drives ejector rod 28 to slide along the inner wall of the top of template 2 to achieve one ejection. At the same time, when top plate 2 6 moves upward, shaft 2 10 slides at the top of top plate 4, driving connecting plate 2 11 to move. Connecting plate 2 11 drives support plate 12 to slide on the inner walls of the left and right sides of top plate 4. The movement of support plate 12 further drives shaft 3 13 to rotate, so that push plate 14 continuously pushes top plate 2 6 upward to complete the second ejection. During this process, shrink column 3 extends and retracts with the movement of top plate 4, providing stable support for the ejection action, thereby realizing the step-by-step and smooth ejection of plastic parts, avoiding damage to plastic parts caused by concentrated force in a single ejection, and effectively improving the integrity and pass rate of plastic parts demolding.

[0039] The sliding ring 17 drives the push block 18 to slide, the push block 18 pushes the connecting block 19 to move, and the connecting block 19 drives the limiting block 20 to engage with the limiting slot of the connecting pipe 1 15, so that the connecting pipe 2 16 can be easily fixed on the connecting pipe 1 15. At the same time, the air generated by the power chamber 29 is transported to the connecting chamber 24 through the connecting pipe 1 15 and the connecting pipe 2 16. The connecting chamber 24 transmits the air to the pipe 1 25. The pipe 1 25 drives the flow of the medium in the pipe 2 26, and finally sprays it out from the air outlet 27 to assist the demolding of the plastic part. The cooperation between the limiting block 20 and the limiting slot realizes the convenient fixing of the connecting pipe 2 16 and the connecting pipe 1 15. At the same time, the medium sprayed out by the air outlet 27 assists in demolding, thereby realizing the rapid installation of auxiliary components and efficient assistance in the removal of plastic parts from the mold, improving the convenience of operation and demolding efficiency.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A hydraulic ejection structure for a plastic mold, comprising an operating table (1), characterized in that: The top of the operating table (1) is fixedly connected to a template (2), and the bottom inner wall of the template (2) is fixedly connected to multiple shrink columns (3). The top of the multiple shrink columns (3) is fixedly connected to a top plate one (4), the top of the top plate one (4) is fixedly connected to multiple support columns (5), the top of the multiple support columns (5) is fixedly connected to a top plate two (6), and the inner walls of the left and right sides of the template (2) are fixedly connected to fixing blocks (7). The inner walls of the two fixing blocks (7) on adjacent sides are rotatably connected to a rotating shaft one (8). A connecting plate (9) is fixedly connected to the outside of each of the two rotating shafts (8). A rotating shaft (10) is fixedly connected to the bottom of each of the two connecting plates (9) on the same side. A connecting plate (11) is fixedly connected to the side of each of the two rotating shafts (10). A support plate (12) is fixedly connected to the side of each of the two connecting plates (11). A rotating shaft (13) is rotatably connected to the inner wall of each of the two support plates (12) on the same side. An auxiliary component for assisting ejection is fixedly connected to the right side of the operating table (1).

2. The hydraulic ejection structure of a plastic mold according to claim 1, characterized in that: The auxiliary components include a power chamber (29), the left side of which is fixedly connected to the right side of the operating table (1). A connecting pipe (15) is fixedly connected to the top of the power chamber (29). A connecting pipe (16) is fixedly connected to the right side of the operating table (1). A moving ring (17) is fixedly connected to the outer right side of the connecting pipe (16). A plurality of push blocks (18) are fixedly connected to the inner wall of the moving ring (17). A connecting block (19) is slidably connected to each adjacent side of the push block (18). A limit block is fixedly connected to each adjacent side of the plurality of connecting blocks (19). (20) A fixing plate (22) is fixedly connected to the inner wall of the top of the moving ring (17). Limiting posts (23) are fixedly connected to the inner walls of the left and right sides of the fixing plate (22). Multiple limiting plates (21) are fixedly connected to the inner wall of the right side of the connecting pipe (26). A connecting chamber (24) is fixedly connected to the left side of the connecting pipe (26). Multiple pipes (25) are fixedly connected to the left side of the connecting chamber (24). Pipes (26) are fixedly connected to the left side of the multiple pipes (25). Multiple air outlets (27) are fixedly connected to the top of the multiple pipes (26).

3. The hydraulic ejection structure of a plastic mold according to claim 1, characterized in that: Push plates (14) are fixedly connected to the outside of both of the two rotating shafts (13), and multiple push rods (28) are fixedly connected to the top of the top plate (6).

4. The hydraulic ejection structure of a plastic mold according to claim 3, characterized in that: The external parts of the multiple top rods (28) are slidably connected to the inner wall of the top of the template (2), and the bottom ends of the two rotating shafts (10) are slidably connected to the top of the top plate (4).

5. The hydraulic ejection structure of a plastic mold according to claim 3, characterized in that: The top ends of the two push plates (14) are fixedly connected to the bottom end of the top plate two (6). The top plate one (4) has slots on both the left and right sides. The two support plates (12) are slidably connected to the inner walls of the left and right sides of the top plate one (4).

6. The hydraulic ejection structure of a plastic mold according to claim 2, characterized in that: The bottom ends of the two fixing plates (22) are fixedly connected to the top end of the second connecting pipe (16), and the right inner wall of the second connecting pipe (16) is fixedly connected to the left outer side of the first connecting pipe (15).

7. The hydraulic ejection structure of a plastic mold according to claim 2, characterized in that: Multiple limiting slots are provided on the left outer side of the connecting pipe (15), and the adjacent sides of the multiple limiting blocks (20) are fixedly connected to the left outer side of the connecting pipe (15).

8. The hydraulic ejection structure of a plastic mold according to claim 2, characterized in that: Multiple air outlets (27) are externally fixedly connected to the inner wall of the top of the template (2), multiple pipes (26) are externally fixedly connected to the inner wall of the top of the template (2), and the connecting chamber (24) is externally fixedly connected to the inner wall of the top of the operating table (1).

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