A stripper structure and method for a swage product

Abstract

This invention relates to the field of open die forging technology, and discloses a demolding structure and method for forged products, including a driving mechanism, a demolding execution mechanism, and a material-stopping mechanism. The material-stopping mechanism is symmetrically arranged on the top of the lower die base and includes a stepped push plate that slides with the lower die base. The demolding execution mechanism includes a flat push slider and a rocker arm. The flat push slider can reciprocate laterally under the action of the driving mechanism. The rocker arm is rotatably mounted on the lower die base, and its two ends are provided with meshing teeth that respectively cooperate with the toothed structures on the flat push slider and the stepped push plate, so that the sliding of the flat push slider drives the sliding of the stepped push plate, and the material-stopping demolding is achieved through the stepped push plate. This invention achieves simple, continuous, and efficient demolding with high demolding efficiency, and solves the problems of high forging damage rate and severe die wear.

Description

Technical Field

[0001] This invention relates to the field of open die forging technology, and in particular to a demolding structure and method for die-forged products. Background Technology

[0002] In modern manufacturing, open die forging technology is widely used in mass production in the automotive, construction machinery, and aerospace industries. The process characteristics, forging quality requirements, and production efficiency demands of open die forging necessitate the demolding process. Early traditional demolding methods often involved manual prying or simple ejector rods, resulting in low demolding efficiency, high forging damage rates, and severe die wear. With advancements in forging technology and increasing market demand, demolding technology has gradually evolved towards specialization, automation, and continuous production. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a demolding structure and method for forging products to solve the above problems.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: In a first aspect, a demolding structure for forging products includes a drive mechanism, a demolding actuator, and a stop mechanism; The material-stopping mechanism is symmetrically arranged on the top of the lower mold base, including a stepped push plate that slides with the lower mold base. The demolding execution mechanism includes a flat push slider and a rocker arm. The flat push slider can reciprocate laterally under the action of the drive mechanism. The rocker arm is rotatably mounted on the lower mold base. Both ends of the rocker arm are provided with meshing teeth, which respectively cooperate with the toothed structures on the flat push slider and the stepped push plate, so that the flat push slider slides and drives the stepped push plate to slide, thereby achieving material-stopping demolding through the stepped push plate.

[0005] As a further implementation, two sets of the demolding actuator and the material blocking mechanism are provided and arranged symmetrically about the drive mechanism, with the demolding actuator located between the material blocking mechanism and the drive mechanism.

[0006] As a further implementation, the flat sliding block is provided with a first mating groove and a second mating groove at one end near the driving mechanism. The bottom surface of the mating groove is inclined, and the opening of the first mating groove extends to the end face. The output end of the drive mechanism is equipped with a pressure block and a push block. The pressure block has external mating inclined surfaces on both sides of its bottom, and the pull block has internal mating inclined surfaces on both sides of its bottom. The external mating inclined surfaces engage with two sets of first mating grooves, and the internal mating inclined surfaces engage with two sets of second mating grooves. Pressing down the pressure block causes the two sets of flat push sliders to move away from each other, and pressing down the pull block causes the two sets of flat push sliders to move closer to each other.

[0007] As a further implementation, the bottom of the flat sliding block is provided with rollers and a guide groove, which cooperates with the guide strip on the lower mold base.

[0008] As a further implementation, the flat push slider and the stepped push plate are provided with toothed structures on one side close to each other, and the rocker arm is located between the flat push slider and the stepped push plate. The rocker arm is rotatably installed on the top surface of the lower mold base, and the flat push slider and the stepped push plate are linked by the rocker arm and move in opposite directions.

[0009] As a further implementation, the stepped push plate includes a continuous first platform and a second platform. The first platform is slidably disposed on the top surface of the lower die holder, and the second platform is disposed inside the forging cavity near the top position. The front end of the second platform is used for material blocking and demolding.

[0010] As a further implementation, the top of the second platform is provided with a crescent-shaped narrow plate, which is used to press down the stepped push plate, and its two ends are fixed on the lower mold base. A limiting block is provided on the crescent-shaped narrow plate to limit the lateral movement of the stepped push plate.

[0011] As a further implementation, rollers are provided at the bottom of the first platform, and an elongated groove is also provided on the first platform to cooperate with the elongated block on the lower mold base to achieve guidance.

[0012] As a further implementation, the bottom of the rocker arm is provided with a ball bearing mounting hole.

[0013] Secondly, a demolding method for forged products, employing any of the demolding structures described above, includes the following steps: The drive mechanism drives the flat slide block to slide, and the flat slide block drives the stepped push plate to slide through the rocker arm, so that the stepped push plate slides to the working stop position to perform the material blocking and demolding work; As the tongue plate disengages from the forging cavity, the demolding process is completed. The drive mechanism then drives the flat pusher to slide in the opposite direction. The flat pusher, through a rocker arm, drives the stepped pusher plate to slide in the opposite direction, returning from the working stop to the rest stop.

[0014] The beneficial effects of the present invention are as follows: The demolding structure of this invention is symmetrically arranged on the lower mold base. Through the cooperation of the demolding execution mechanism, the driving mechanism, and the material-stopping mechanism, the two ends of the rocker arm are provided with meshing teeth, which respectively cooperate with the toothed structures on the flat sliding block and the stepped push plate. This allows the flat sliding block to slide, driving the stepped push plate to slide, thereby achieving material-stopping demolding through the stepped push plate. This invention utilizes the characteristic of the upper mold holding the billet, relying on the limiting of the material-stopping mechanism and the weight of the billet itself to complete demolding. This invention achieves simple, continuous, and efficient demolding with high demolding efficiency, solving the problems of high forging damage rate and severe mold wear. Compared with the prior art, this invention has a greater demolding force and less billet deformation. Attached Figure Description

[0015] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0016] Figure 1 This is a schematic diagram of the overall structure of the demolding structure in an embodiment of the present invention; Figure 2 This is a schematic diagram of a single-sided demolding structure in an embodiment of the present invention; Figure 3 This is a schematic diagram of the overall structure of the sliding block in an embodiment of the present invention; Figure 4 This is a schematic diagram of the push block and pull block in an embodiment of the present invention; Figure 5 This is a schematic diagram of the rocker arm structure in an embodiment of the present invention; Figure 6 This is an isometric structural diagram of the stepped push plate in an embodiment of the present invention; Figure 7 This is a schematic diagram of the bottom structure of the stepped push plate in an embodiment of the present invention; Figure 8 This is a schematic diagram of the crescent-shaped narrow plate in an embodiment of the present invention.

[0017] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0018] The components include: 1. Flat pusher slider, 2. rocker arm, 3. push block, 4. pull block, 5. stepped push plate, 6. crescent-shaped narrow plate, 7. lower mold base; 11. guide groove, 12. roller, 13. first mating groove, 14. second mating groove, 15. toothed structure, 21. through hole, 22. ball bearing mounting hole, 23. first meshing tooth, 24. second meshing tooth, 31. outer mating inclined surface, 41. inner mating inclined surface; 51. elongated groove, 52. roller mounting groove, 53. toothed structure, 54. first platform, 55. second platform, 56. arc-shaped block, 57. arc-shaped groove, 61. bolt hole, 62. limit block. Detailed Implementation

[0019] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0020] Example 1 In a typical embodiment of the present invention, reference is made to Figures 1-8 As shown, a demolding structure for forging products is provided. The demolding structure is symmetrically arranged on the lower die base 7. It includes a demolding actuator, a driving mechanism, and a stop mechanism. Two sets of demolding actuators and two sets of stop mechanisms are provided. The driving mechanism cooperates with the two sets of demolding actuators at their respective close ends. The movement of the two sets of stop mechanisms is controlled by the two sets of demolding actuators.

[0021] like Figure 1 As shown in the figure, there are two sets of material-stopping mechanisms and one set of demolding actuators. The two sets of material-stopping mechanisms are symmetrically arranged on the top of the lower mold base 7, about the center line of the top surface of the lower mold base 7. The two sets of demolding actuators are located on one side of the material-stopping mechanisms and between the two sets of material-stopping mechanisms.

[0022] The material blocking mechanism includes a stepped push plate 5 that slides with the lower mold base 7. The demolding execution mechanism includes a flat push slider 1 and a rocker arm 2. The flat push slider 1 can reciprocate in the lateral direction under the action of the driving mechanism. The rocker arm 2 is rotatably mounted on the lower mold base 7. The two ends of the rocker arm 2 are provided with meshing teeth, which respectively cooperate with the toothed structures on the flat push slider 1 and the stepped push plate 5, so that the flat push slider 1 slides and drives the stepped push plate 5 to slide, and the material blocking and demolding are achieved through the stepped push plate 5.

[0023] The drive mechanism is located close to the two sets of demolding actuators. Two sets of demolding actuators and two sets of stop mechanisms are provided, symmetrically arranged about the drive mechanism. The demolding actuator is positioned between the stop mechanism and the drive mechanism. The drive mechanism includes a power unit, the output of which is capable of vertical movement. The drive mechanism also includes a push block and a pull block. Preferably, the outputs of the two power units are respectively connected to the push block and the pull block, controlling their vertical movement respectively.

[0024] The demolding mechanism includes a sliding block 1 that is slidably disposed on the top surface of the lower mold base 7 and a rocker arm 2 that is rotatable on the top surface of the lower mold base. The sliding block 1 is engaged with one end of the rocker arm 2, and the other end of the rocker arm 2 is engaged with the material stop mechanism.

[0025] like Figure 2 and Figure 3As shown, the push slider 1 in this embodiment is a cuboid block structure with two rows of structures along its length on its bottom surface. The first row of structures is rollers 12, and multiple rollers 12 are arranged along the length of the push slider 1. Through the rollers 12, the push slider 1 can move along its own length on the top surface of the lower mold base 7.

[0026] The second row of structures is a guide groove 12. The extension direction of the guide groove 11 is in the same direction as the length direction of the flat push slider 1. Correspondingly, a guide strip (not shown in the figure) is provided on the top surface of the lower mold base 7. The guide strip is a long strip-shaped protrusion structure that cooperates with the guide groove 12 to provide guidance for the movement of the flat push slider 1.

[0027] It is understood that the direction of movement of the sliding block 1 in this embodiment is defined as lateral movement.

[0028] It is understandable that two guide bars are symmetrically provided on the lower mold base 7, which respectively cooperate with the guide grooves 12 of the two corresponding flat push sliders 1.

[0029] like Figure 3 As shown, the top surface of one end of the sliding block 1 is provided with two mating grooves, namely the first mating groove 13 and the second mating groove 14. The first mating groove 13 and the second mating groove 14 are staggered and are not in the same horizontal direction.

[0030] The first mating groove is open at one end, extending to the end face of the push slider 1; therefore, the first mating groove is open at both the top and the side. The second mating groove is entirely located on the top surface of the push slider 1, with an opening only at the top.

[0031] like Figure 3 As shown, the bottoms of both the first mating groove 13 and the second mating groove 14 are sloped. The bottom of the first mating groove 13 is lower at the end near the drive end than at the other end. The bottom of the second mating groove 14 is exactly the opposite, with the height near the drive end greater than the height at the other end.

[0032] It is understandable that the two sets of flat sliding blocks 1 of the unloading mechanism are arranged symmetrically. Therefore, the two sets of first mating grooves 13 are in the same transverse direction, and the two sets of second mating grooves 14 are in the same transverse direction.

[0033] The two output ends of the power unit are connected to the push block and the pull block respectively, and the push block and the pull block are arranged side by side along the longitudinal direction.

[0034] The bottom ends of the push block and pull block simultaneously engage with the mating grooves at the ends (drive ends) of the two sets of flat sliding blocks 1, enabling the two sets of flat sliding blocks 1 to move synchronously and symmetrically (moving away from or moving closer to each other). The bottom ends of the push block engage with the first mating groove 13, and the bottom ends of the pull block 4 engage with the second mating groove 14.

[0035] likeFigure 4 As shown, the bottom ends of the push block are inclined surfaces, called the outer mating inclined surfaces 31. The outer mating inclined surfaces 31 are parallel to the inclined surfaces at the bottom of the first mating groove 13 and are used to mate with the first mating groove.

[0036] The bottom of the pull block 4 has a trapezoidal groove, so an inclined surface is formed on the inner side of both ends of the bottom, which is the inner mating inclined surface 41. The bottom ends of the pull block 4 mate with the second mating groove 14. The inner mating inclined surface 4 is parallel to the inclined surface of the bottom of the second mating groove 14 and mates with each other.

[0037] Specifically, when the power unit drives the push block 3 to descend and the pull block 4 to rise, the push block 3 engages with the first engagement groove through the outer engagement inclined surface 31, which can make the two sets of flat push sliders 1 move away from each other.

[0038] When the power unit drives the push block 3 to rise and the pull block 4 to fall, the pull block 4 engages with the second engagement groove 14 through the inner engagement inclined surface 41, which allows the two sets of flat push sliders 1 to approach each other and achieve resetting. During the process, the inner engagement inclined surface 41 is always in contact with the bottom inclined surface of the second engagement groove 14, and the outer engagement inclined surface 31 is always in contact with the bottom inclined surface of the first engagement groove 13.

[0039] In this embodiment, the cooperation of push block 3, pull block 4 and flat sliding block 1 enables the two sets of flat sliding blocks 1 to move closer or further apart.

[0040] like Figure 3 As shown, a toothed structure 15 is provided on the front side of the other end of the sliding block 1 (the end away from the mating groove). Figure 1 and Figure 5 As shown, the rocker arm 2 is a rod-shaped structure with meshing teeth at both ends, namely the first meshing tooth 23 and the second meshing tooth 24. The rocker arm 2 has a through hole 21 near the middle section. The through hole 21 cooperates with the pin on the lower mold base to realize the rocker arm 2 being rotatably mounted on the top surface of the lower mold base 7. The rocker arm 2 can rotate with the pin as the rotation center.

[0041] The flat push slider 1 and the stepped push plate 5 are provided with toothed structures on one side close to each other. The rocker arm 2 is located between the flat push slider 1 and the stepped push plate 5. The rocker arm 2 is rotatably mounted on the top surface of the lower mold base 7. The flat push slider 1 and the stepped push plate 5 are linked by the rocker arm and move in opposite directions.

[0042] In order to enable the rocker arm 2 to rotate smoothly, multiple ball bearing mounting holes 22 are provided at both ends of the bottom of the rocker arm 2 for mounting balls. With the support of the balls, the rocker arm 2 can rotate smoothly on the top surface of the lower mold base 7.

[0043] like Figure 1 and Figure 2As shown, the toothed structure 15 of the flat push slider 1 and the second meshing tooth 24 cooperate. When the two flat push sliders 1 move away from each other, the cooperation between the toothed structure 15 and the second meshing tooth 24 enables the left rocker arm 2 to rotate clockwise around the pin and the right rocker arm 2 to rotate counterclockwise around the pin. Conversely, when the two flat push sliders 1 are reset (closer to each other), the rocker arm 2 rotates in the opposite direction around the pin.

[0044] like Figure 1 As shown, each set of material-stopping mechanisms includes a stepped push plate 5 and a crescent-shaped narrow plate 6. The stepped push plate 5 is used for material-stopping, and the crescent-shaped narrow plate 6 is used to restrict the stepped push plate 5 and prevent it from tilting upwards during demolding.

[0045] like Figure 6 and Figure 7 As shown, the stepped push plate 5 includes a first platform 54 and a second platform 55 connected as one piece. The top surface of the first platform 54 is higher than the top surface of the second platform 55, thus forming a stepped structure (step structure).

[0046] The first platform 54 is slidably disposed on the top surface of the lower die holder 7, and the second platform 55 is slidably disposed in the forging cavity of the lower die holder 7 and is disposed near the top of the forging cavity. The front end of the second platform is used for material blocking and demolding.

[0047] The first platform 54 is located at the rear end of the stepped push plate 5, and the second platform 55 is located at the front end of the stepped push plate 5. A toothed structure 53 is provided at the bottom of one side of the first platform 54, which engages with the first meshing tooth 23. Figure 1 and Figure 2 As shown.

[0048] The bottom of the first platform 54 at the rear end is provided with multiple roller mounting slots 52 for mounting rollers so that the stepped push plate 5 can slide on the lower mold base 7.

[0049] It is understood that the roller mounting slots 52 in this embodiment are provided with four, in two rows and two columns, and are evenly distributed on the bottom surface of the first platform 54. The first platform slides with the top surface of the lower mold base 7 through the installed rollers.

[0050] like Figure 1 and Figure 2 As shown, when the sliding blocks 1 move away from each other, the sliding blocks 1 cooperate with the second meshing tooth 24 through the tooth structure 15, so that the left rocker 2 rotates clockwise and the right rocker 2 rotates counterclockwise (not shown in the figure). The rocker 2 cooperates with the tooth structure 53 through the first meshing tooth 23, so that the two sets of symmetrically arranged stepped push plates 5 can slide laterally through the rollers, so that the two stepped push plates 5 can move closer to each other towards the center of the lower mold base 7.

[0051] It is understandable that the first platform 54 of the stepped push plate 5 is provided with an elongated groove 51 at its center, and the elongated groove 51 runs through the first platform 54.

[0052] A corresponding elongated block is set on the lower mold base 7. The length of the elongated block is less than the length of the elongated groove 51, and the width matches the width of the elongated groove 51. The elongated block and the elongated groove 51 cooperate to achieve a guiding function, ensuring that the stepped push plate 5 slides smoothly laterally. It can be understood that the bottom surface of the stepped push plate is covered with lubricating oil to reduce friction.

[0053] The top surface of the second platform 55 is flat, and its rear side is curved. An arc groove 57 is provided at the center of the bottom surface. The arc groove 57 is arranged horizontally, and an arc block 56 is provided at the front end of the arc groove. The bottom surface of the arc block 56 is flush with the bottom surface of the second platform 55.

[0054] The arrangement of the arc-shaped block 56 is to adapt to the corresponding mold material. During demolding, the bottom surface of the arc-shaped block 56 can adaptably press (block) the top position of the mold material. When the upper crossbeam drives the tongue plate to move upward, the mold material will not be carried up.

[0055] In other alternative examples, the bottom surface of the second platform 55 does not have an arc-shaped groove and arc-shaped block structure, and is a planar structure. Alternatively, the position of the arc-shaped blocks is arranged in a specified position within the arc-shaped groove according to the demolding requirements of the film material.

[0056] like Figure 8 As shown, the material-stopping mechanism also includes a crescent-shaped narrow plate 6, with bolt holes 61 at both ends, through which it can be fixed to the top surface of the lower mold base 7. Limiting blocks 62 are located near both ends at the bottom of the crescent-shaped narrow plate 6. The two limiting blocks 62 are flat on one side, and their spacing is adapted to the width of the second platform 55. Figure 2 As shown, when the rocker arm 2 moves the stepped push plate 5, the stepped push plate 5 can move accurately in the lateral direction under the action of the limiting block 62.

[0057] The crescent-shaped narrow plate 6 serves two purposes: firstly, it guides the lateral movement of the stepped push plate 5 through the limiting block 62; secondly, it limits the stepped push plate 5 from above, pressing it down. During demolding, it can press down the stepped push plate 5 to prevent it from being lifted up by the film material.

[0058] Understandably, the middle position of the crescent-shaped narrow plate 6 is located at the top of the forging cavity in the center of the lower die holder 7, while the second platform fits inside the forging cavity and is positioned close to the top. The arc-shaped surface on the rear side of the second platform facilitates its fit with the circular cross-section of the forging cavity. After the stepped push plate 5 retracts, the inner side of the forging cavity contacts the arc-shaped surface.

[0059] Conversely, when the two sliding blocks 1 return to their original positions (approach each other), the rocker arm 2 rotates in the opposite direction, causing the stepped push plate 5 to return to its original position (retreat), meaning the two stepped push plates 5 move away from each other. It can be understood that the station where the stepped push plates 5 approach each other is the working stop station. When they move away from each other, it is the rest stop station.

[0060] The beneficial effects of this invention are as follows: The horizontal sliding block cooperates with the guide strip on the lower mold base through the guide groove, and together with the roller 12, the horizontal sliding block can slide in the lateral direction.

[0061] The rocker arm engages with the toothed structure via meshing teeth to enable the lateral sliding of the flat-push slider. Rotation of the rocker arm converts this into the lateral sliding of the stepped push plate. The stepped push plate achieves its own lateral sliding through the cooperation of rollers, elongated grooves, and elongated blocks. Furthermore, a limiting block below the crescent-shaped narrow plate limits the stepped push plate, ensuring its lateral sliding.

[0062] The crescent-shaped narrow plate presses down on the second platform from above, preventing the stepped push plate from lifting up during demolding.

[0063] Ball bearings are installed at the bottom of the rocker arm to ensure smooth rotation. The demolding mechanism has a larger contact surface with the workpiece, resulting in less workpiece deformation and eliminating the need to consider the problem of the mechanism getting stuck during reset.

[0064] It is understandable that the meshing teeth at both ends of the rocker arm are adjusted to ensure smooth engagement between the meshing teeth and the tooth profile (e.g., adjusting tooth root depth). Preferably, the first meshing tooth 23 has an overall arc shape, while the second meshing tooth 24 has an overall straight tooth shape. Those skilled in the art can make appropriate adjustments to the meshing teeth and tooth profile to ensure precise structural engagement.

[0065] Example 2 In a typical embodiment of the present invention, reference is made to Figure 1 As shown, A demolding method for forged products, employing the demolding structure described in Example 1, specifically includes the following steps: When material removal and demolding are required, the output end of the power unit drives the push block 3 to move downward. The two outer mating inclined surfaces 31 of the push block 3 engage with the first mating groove 13 of the two demolding actuators' flat push sliders 1, pushing the two flat push sliders 1 away from each other. The two flat push sliders each engage with the second meshing tooth 24 through the toothed structure 15, so that the rocker arm 2 rotates on the lower mold base with the pin as the rotation center. The other end of the rocker arm 2 engages with the toothed structure 53 on the stepped push plate 5 through the first meshing tooth 23, so that the two stepped push plates 5 move closer to each other. That is, the front ends of the two stepped push plates 5 extend out, changing from the resting material removal station to the working material removal station. The front end of the second platform 55 extends out from the bottom of the crescent-shaped narrow plate 6.

[0066] During the lateral movement of the sliding block 1, it can move smoothly on the top surface of the lower mold base via the roller 12, and can move smoothly in the lateral direction through the cooperation of the guide groove 11 and the guide strip. The rocker arm 2 can rotate under the action of the pin.

[0067] The second platform 55 of the stepped push plate 5 is limited by the bottom limiting block 56 of the crescent-shaped narrow plate 6, which ensures that it always moves laterally. During the movement of the stepped push plate 5, the bottom of the first platform 54 cooperates with the top surface of the lower mold base through rollers to reduce resistance.

[0068] Then, the output end of the power unit presses down on the push block 3, causing it to remain stationary after being pressed down, meaning the stepped push plate 5 remains extended forward. The demolding process then begins. The tongue plate inside the forging cavity moves upward under the action of the upper crossbeam (not shown in the figure), while the front end of the second platform 55 of the stepped push plate 5 blocks the die material, preventing it from being lifted up by the tongue plate. Demolding is completed when the tongue plate disengages from the lower die holder.

[0069] After the draft is completed, the output end of the power unit presses down the pull block, and the output end of the power unit connected to the push block unloads the pressure. The pull block 4 engages with the two second mating grooves 14 through the two inner mating inclined surfaces 41. As the pull block moves downward, it can pull the two sets of flat push sliders 1 back to their original positions, so that the two sets of flat push sliders 1 move closer to each other, while the previous rocker arm 2 rotates in the opposite direction, so that the stepped push plate 5 retracts and switches from the working stop position to the rest stop position.

[0070] During the downward movement of the pull block, the first mating groove 13 can lift the push block through the inclined surface at the bottom of the groove, at which point a drafting process ends.

[0071] In this embodiment, the power device repeatedly presses the push block and the pressure block to achieve a cycle, which can make the two sets of stepped push plates 5 continuously extend and retract. Compared with traditional manual demolding, it can be continuously cycled, the process is fully automatic, simple, efficient, safe and reliable.

[0072] Understandably, two sets of power units can be configured, with the output ends of the two sets of power units connected to the pressure block 3 and the pull block 4 respectively, working together to realize the cyclic lifting and lowering motion of the pressure block 3 and the pull block 4.

[0073] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A demolding structure for forged products, characterized in that, This includes a drive mechanism, a demolding actuator, and a material stop mechanism; The material-stopping mechanism is symmetrically arranged on the top of the lower mold base, including a stepped push plate that slides with the lower mold base. The demolding execution mechanism includes a flat push slider and a rocker arm. The flat push slider can reciprocate laterally under the action of the drive mechanism. The rocker arm is rotatably mounted on the lower mold base. Both ends of the rocker arm are provided with meshing teeth, which respectively cooperate with the toothed structures on the flat push slider and the stepped push plate, so that the flat push slider slides and drives the stepped push plate to slide, thereby achieving material-stopping demolding through the stepped push plate.

2. The demolding structure for forged products according to claim 1, characterized in that, The demolding actuator and the material blocking mechanism are each provided in two sets and are arranged symmetrically about the drive mechanism. The demolding actuator is located between the material blocking mechanism and the drive mechanism.

3. A demolding structure for forged products according to claim 2, characterized in that, The flat sliding block is provided with a first mating groove and a second mating groove at one end near the drive mechanism. The bottom surface of the mating groove is inclined and the opening of the first mating groove extends to the end face. The output end of the drive mechanism is equipped with a pressure block and a push block. The pressure block has external mating inclined surfaces on both sides of its bottom, and the pull block has internal mating inclined surfaces on both sides of its bottom. The external mating inclined surfaces engage with two sets of first mating grooves, and the internal mating inclined surfaces engage with two sets of second mating grooves. Pressing down the pressure block causes the two sets of flat push sliders to move away from each other, and pressing down the pull block causes the two sets of flat push sliders to move closer to each other.

4. A demolding structure for forged products according to claim 1, characterized in that, The bottom of the flat push slider is equipped with rollers and a guide groove, which cooperates with the guide strip on the lower mold base.

5. A demolding structure for forged products according to claim 4, characterized in that, The flat push slider and the stepped push plate are provided with toothed structures on one side close to each other. The rocker arm is located between the flat push slider and the stepped push plate. The rocker arm is rotatably installed on the top surface of the lower mold base. The flat push slider and the stepped push plate are linked by the rocker arm and move in opposite directions.

6. A demolding structure for forged products according to claim 2, characterized in that, The stepped push plate includes a continuous first platform and a second platform. The first platform is slidably disposed on the top surface of the lower die base, and the second platform is disposed inside the forging cavity near the top. The front end of the second platform is used for material blocking and demolding.

7. A demolding structure for forged products according to claim 6, characterized in that, The second platform is provided with a crescent-shaped narrow plate at the top, which is used to press down the stepped push plate, and its two ends are fixed to the lower mold base; A limiting block is provided on the crescent-shaped narrow plate to limit the lateral movement of the stepped push plate.

8. A demolding structure for forged products according to claim 7, characterized in that, The first platform is equipped with rollers at the bottom and an elongated groove, which cooperates with the elongated block on the lower mold base to achieve guidance.

9. A demolding structure for forged products according to claim 5, characterized in that, The bottom of the rocker arm is provided with a ball bearing mounting hole.

10. A method for demolding forged products, characterized in that, The demolding structure described in any one of claims 1-9 includes the following steps: The drive mechanism drives the flat slide block to slide, and the flat slide block drives the stepped push plate to slide through the rocker arm, so that the stepped push plate slides to the working stop position to perform the material blocking and demolding work; As the tongue plate disengages from the forging cavity, the demolding process is completed. The drive mechanism then drives the flat pusher to slide in the opposite direction. The flat pusher, through a rocker arm, drives the stepped pusher plate to slide in the opposite direction, returning from the working stop to the rest stop.

Images