An upper knockout device for a hot die forging press

Abstract

The utility model discloses a kind of upper material ejecting devices of hot die forging press, belong to press machine technical field, its technical key points include upper die and the fixed plate of detachable connection of upper die top, the top of the upper die is provided with cavity, the bottom of cavity is provided with multiple chutes that are communicated with cavity and evenly distributed, multiple push rods are slidably connected in multiple chutes, the circumferential outer wall of multiple push rods and located at top position are all fixedly connected with fixed ring, and multiple fixed rings are fixedly connected with connecting frame that makes multiple fixed rings be fixed. The utility model is through multiple push rods and lower pressing assembly, ensure that forging can smoothly fall off after forming, avoid that forging stays on the surface of upper die due to sticking mold, also limit the height of push rod by being provided with blocking frame, to avoid that casting is deformed or damaged due to push rod height deviation.

Description

Technical Field

[0001] This utility model belongs to the field of press technology, specifically relating to an upper ejector device for a hot forging press. Background Technology

[0002] Hot forging presses are widely used in the forging industry and can produce forgings with high precision and mechanical properties.

[0003] A search revealed a Chinese patent with publication number CN209736546U, which discloses a hot forging press, including a base. Support rods are fixedly installed on the top left and right sides of the base. This causes debris to enter the hydraulic pump, affecting its normal operation and reducing production efficiency.

[0004] However, in actual production, due to the high temperature of the material and the influence of specific process conditions, forgings may stick to the mold, causing them to remain on the surface of the upper mold and unable to be demolded smoothly. This not only affects production efficiency but also prolongs the production cycle. Utility Model Content

[0005] The purpose of this invention is to provide an upper ejector device for a hot forging press to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an upper ejector device for a hot forging press, comprising an upper die and a fixed plate detachably connected to the top of the upper die, the top of the upper die having a cavity, the bottom of the cavity having a plurality of sliding grooves connected to the cavity and evenly distributed therein, push rods being slidably connected in each of the plurality of sliding grooves, and fixing rings being fixedly connected to the outer circumference of each of the plurality of push rods at the top position, and connecting frames being fixedly connected between the plurality of fixing rings to fix the plurality of fixing rings together, a pressing component for moving the connecting frame downwards being provided at the bottom of the cavity, and an elastic component for resetting the plurality of fixing rings being provided at the bottom of the cavity.

[0007] As a further embodiment of this utility model, the pressing component includes a connecting plate fixedly connected to the bottom of the cavity. Two guide rods symmetrically arranged are fixedly connected to one side of the connecting plate. A slide is slidably connected to the outer side of the two guide rods. A fixed frame is fixedly connected to both sides of the slide. A pressure rod is rotatably connected between the inner walls of the two sides of the fixed frame through a bearing. Two pressure blocks symmetrically arranged are fixedly connected to the top of the connecting frame. The top of the pressure block has an inclined surface that contacts the pressure rod. A power component for driving the slide to move left and right is provided on one side of the connecting plate.

[0008] As a further embodiment of this utility model, the power assembly includes a threaded rod rotatably connected to one side of the connecting plate via a bearing and located between two guide rods, and a servo motor that drives the threaded rod to rotate along the axis is fixedly connected to the other side of the connecting plate.

[0009] As a further embodiment of this utility model, the elastic component includes multiple springs respectively sleeved on the outside of the push rod, with one end of the spring fixed to the bottom of the cavity and the other end fixed to the fixing ring.

[0010] As a further embodiment of this utility model, a plurality of baffles are fixedly connected to the bottom of the cavity and the top of the fixing ring, and the plurality of baffles correspond one-to-one with the fixing ring.

[0011] As a further embodiment of this utility model, the other end of the two guide rods is fixedly connected to a stop block, and the threaded rod is rotatably connected to the stop block.

[0012] As a further embodiment of this invention, the bottom of the push rod is coated with a wear-resistant coating.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model ensures that the forging can be smoothly removed after forming by using multiple push rods and pressing components, avoiding the forging from sticking to the upper die surface due to sticking, thereby greatly improving production efficiency and product quality.

[0015] 2. This utility model limits the height of the push rod by providing a stop, so that the bottom of the push rod is level with the bottom of the upper mold, thereby avoiding deformation or damage to the casting due to the height deviation of the push rod.

[0016] 3. This utility model uses the elastic force of the spring to quickly restore the connecting frame to its initial position, achieving rapid reset and improving the convenience of equipment operation. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present utility model;

[0018] Figure 2 This is a partial cross-sectional view of the present invention;

[0019] Figure 3 This is a cross-sectional view of the upper mold of this utility model.

[0020] In the diagram: 1. Fixed plate; 2. Upper mold; 3. Cavity; 4. Connecting frame; 5. Stop; 6. Pressure block; 7. Inclined surface; 8. Pressure rod; 9. Fixed frame; 10. Stop; 11. Slide; 12. Push rod; 13. Slide groove; 14. Fixed ring; 15. Guide rod; 16. Connecting plate; 17. Spring; 18. Threaded rod. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-3 This utility model provides an upper ejector device for a hot forging press. An upper die 2 is detachably connected to a fixing plate 1 at its top. A cavity 3 is formed at the top of the upper die 2. Multiple sliding grooves 13, communicating with and evenly distributed within the cavity 3, are formed at the bottom of the cavity 3. Push rods 12 are slidably connected within each of the multiple sliding grooves 13. Fixing rings 14 are welded to the outer circumference of each push rod 12 at its top position. Connecting brackets 4, secured together by bolts, fix the multiple fixing rings 14. An elastic component, comprising components for resetting the multiple fixing rings 14, is provided at the bottom of the cavity 3. Multiple springs 17 are attached to the outside of the push rod 12, with one end of the spring 17 fixed to the bottom of the cavity 3 and the other end fixed to the fixing ring 14. The elastic force of the spring 17 helps the connecting frame 4 to quickly reset. When the upper mold 2 is raised, the pressing component is activated. The pressing component pushes the connecting frame 4 to move downward. The connecting frame 4 drives multiple push rods 12 to move downward at the same time through multiple fixing rings 14. The push rods 12 extend and push off the castings that are stuck to the bottom of the upper mold 2, thus solving the problem of forging sticking to the mold and causing the forgings to stay on the surface of the upper mold 2 and unable to be demolded smoothly, thereby greatly improving production efficiency.

[0023] In this embodiment, the bottom of the cavity 3 is provided with a pressing assembly that moves the connecting frame 4 downward. The pressing assembly includes a connecting plate 16 welded to the bottom of the cavity 3. Two guide rods 15 are symmetrically arranged welded to one side of the connecting plate 16. A slide 11 is slidably connected to the outer side of the two guide rods 15. Fixing frames 9 are welded to both sides of the slide 11. A pressure rod 8 is rotatably connected between the inner walls of the two sides of the fixing frame 9 through a bearing. Two pressure blocks 6 are symmetrically arranged welded to the top of the connecting frame 4. The top of the pressure block 6 has an inclined surface 7 that contacts the pressure rod 8. A power assembly for driving the slide 11 to move left and right is provided on one side of the connecting plate 16. The force assembly includes a threaded rod 18 rotatably connected to one side of the connecting plate 16 via a bearing and located between two guide rods 15. A servo motor that drives the threaded rod 18 to rotate along the axis is fixed to the other side of the connecting plate 16 via bolts. When the servo motor is started, it drives the threaded rod 18 to rotate, and the threaded rod 18 drives the connecting plate 16 to slide left and right along the two guide rods 15. When the power assembly is started, it drives the slide 11 to move to the right. The slide 11 drives the pressure rod 8 to move to the right via two fixed brackets 9. The pressure rod 8 pushes the inclined plane 7 to make the two pressure blocks 6 move down at the same time. The two pressure blocks 6 drive the connecting frame 4 to move down.

[0024] In this embodiment, multiple baffles 5 are welded to the bottom of the cavity 3 and the top of the fixing ring 14, and the multiple baffles 5 correspond one-to-one with the fixing ring 14. The height of the push rod 12 is limited by the baffles 5, so that the bottom of the push rod 12 is kept at the same level as the bottom of the upper mold 2, thereby avoiding the impact on the casting during the processing of the casting.

[0025] In this embodiment, the other end of the two guide rods 15 is fixed with a stop block 10 by bolts, and the threaded rod 18 is rotatably connected to the stop block 10. The stop block 10 limits the slide 11 and prevents the slide 11 from disengaging from the threaded rod 18.

[0026] In this embodiment, the bottom of the push rod 12 is coated with a wear-resistant coating, which improves the wear resistance of the push rod 12. The wear-resistant coating is composed of a binder (such as epoxy resin, phenolic resin), a lubricant (such as molybdenum disulfide, graphite powder) and a reinforcing agent (such as metal powder, quartz powder). The tightly packed particle structure forms a high-hardness, high-wear-resistant surface protective layer, thereby further improving the service life of the push rod 12.

[0027] It should be noted that servo motors are existing technology, and those skilled in the art can configure them according to actual needs; details will not be elaborated here.

[0028] The working principle of this utility model is as follows: When the upper mold 2 is raised, the servo motor is started, and the servo motor drives the threaded rod 18 to rotate. The threaded rod 18 drives the connecting plate 16 to slide to the right along the two guide rods 15. The slide 11 drives the pressure rod 8 to move to the right through the two fixed brackets 9. The pressure rod 8 pushes the inclined surface 7 to make the two pressure blocks 6 move down at the same time. The two pressure blocks 6 drive the connecting bracket 4 to move down. The connecting bracket 4 drives the multiple push rods 12 to move down at the same time through multiple fixed rings 14. The push rods 12 extend and push off the castings attached to the bottom of the upper mold 2. Then the servo motor is started, and the servo motor drives the threaded rod 18 to rotate. The threaded rod 18 drives the connecting plate 16 to slide to the left along the two guide rods 15. The slide 11 drives the pressure rod 8 to move to the left through the two fixed brackets 9, so that the pressure rod 8 disengages from the inclined surface 7. At the same time, the spring 17 resets the push rod 12 through the fixed rings 14.

[0029] The electronic components and modules used in this utility model can all be parts that are commonly used in the market and can achieve the specific functions in this case. The specific models and sizes can be selected and adjusted according to actual needs.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An upper ejector device for a hot forging press, comprising an upper die (2) and a fixing plate (1) detachably connected to the top of the upper die (2), characterized in that: The upper mold (2) has a cavity (3) at the top and a plurality of grooves (13) that are connected to and evenly distributed in the cavity (3) at the bottom. Each groove (13) has a push rod (12) slidably connected in it. Each push rod (12) has a fixed ring (14) fixedly connected to its outer circumference and at the top position. Each fixed ring (14) is fixedly connected to a connecting frame (4) that fixes the multiple fixed rings (14). The bottom of the cavity (3) has a pressing component that moves the connecting frame (4) downward. The bottom of the cavity (3) has an elastic component that resets the multiple fixed rings (14).

2. The upper ejector device of a hot forging press according to claim 1, characterized in that: The pressing assembly includes a connecting plate (16) fixedly connected to the bottom of the cavity (3). Two guide rods (15) are fixedly connected to one side of the connecting plate (16). A slide (11) is slidably connected to the outer side of the two guide rods (15). A fixed frame (9) is fixedly connected to both sides of the slide (11). A pressure rod (8) is rotatably connected between the inner walls of the two sides of the fixed frame (9) through a bearing. Two pressure blocks (6) are fixedly connected to the top of the connecting frame (4). An inclined surface (7) is opened on the top of the pressure block (6) to contact the pressure rod (8). A power assembly for driving the slide (11) to move left and right is provided on one side of the connecting plate (16).

3. The upper ejector device of a hot forging press according to claim 2, characterized in that: The power assembly includes a threaded rod (18) rotatably connected to one side of the connecting plate (16) via a bearing and located between two guide rods (15), and a servo motor that drives the threaded rod (18) to rotate along the axis is fixedly connected to the other side of the connecting plate (16).

4. The upper ejector device of a hot forging press according to claim 1, characterized in that: The elastic component includes multiple springs (17) respectively sleeved on the outside of the push rod (12), with one end of the spring (17) fixed to the bottom of the cavity (3) and the other end fixed to the fixing ring (14).

5. The upper ejector device of a hot forging press according to claim 4, characterized in that: Multiple baffles (5) are fixedly connected to the bottom of the cavity (3) and the top of the fixing ring (14), and the multiple baffles (5) correspond one-to-one with the fixing ring (14).

6. The upper ejector device of a hot forging press according to claim 3, characterized in that: The other end of the two guide rods (15) is fixedly connected to a stop (10), and the threaded rod (18) is rotatably connected to the stop (10).

7. The upper ejector device of a hot forging press according to claim 4, characterized in that: The bottom of the push rod (12) is coated with a wear-resistant coating.

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