Powder forming machine with female die convenient to replace

Abstract

The utility model discloses a powder forming machine with a female die convenient to replace. A female die mounting groove is formed in one end of a workbench, a through hole is formed in the middle of the position, located at the female die mounting groove, of the workbench, the female die is arranged in the female die mounting groove of the workbench, the two sides of the female die are connected with the workbench in a fastened mode through bolts, and a die groove is formed in the female die. A guide hole is formed in the position, located at the die groove, of the female die, the discharging pushing oil cylinder is arranged below the workbench and connected with the supporting frame, a piston rod of the discharging pushing oil cylinder is connected with the bottom end of the connecting rod through a coupler, the connecting rod penetrates through the through hole of the workbench and the guide hole of the female die and is connected with a pushing die plate, and the pushing die plate is movably arranged in the die groove of the female die. According to the utility model, the structure is reasonable, the female die can be directly pushed out of the female die mounting groove through the discharging pushing oil cylinder, the convenience is greatly improved when the female die is replaced, and the labor cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of powder molding machine technology, specifically a powder molding machine that facilitates the replacement of the female mold. Background Technology

[0002] Powder forming machines are a common application of hydraulic presses. A powder forming machine is a device that uses different powdered materials, with the help of molds, and applies a certain pressure through a hydraulic press to form the desired product.

[0003] Currently, the female mold of powder molding machines is generally installed inside the worktable. When the female mold needs to be replaced, the traditional method is to manually insert a steel rod through a pre-drilled hole in the lower part of the worktable, press it against the lower surface of the female mold, and then use a hammer to strike the bottom of the steel rod, so that the female mold gradually detaches from the worktable. This replacement method is labor-intensive and inconvenient. Therefore, there is an urgent need for an improved technology to solve this problem in the existing technology. Utility Model Content

[0004] The purpose of this utility model is to provide a powder molding machine that facilitates the replacement of the female mold. The female mold can be directly pushed out of the female mold mounting slot by the unloading push cylinder, which greatly improves the convenience of replacing the female mold and saves labor costs, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a powder molding machine that facilitates the replacement of the female mold, comprising a frame, a female mold, a pressing cylinder, a discharge and pushing mechanism, a feeding mechanism, and a material cylinder;

[0006] The frame includes a workbench, a support frame, columns and a top plate. The support frame is provided on the lower surface of the workbench. Several columns are provided on both sides of the upper surface of the workbench. The top of the columns is connected to the top plate. A female mold mounting groove is provided at one end of the workbench. A through hole is provided in the middle of the workbench at the female mold mounting groove. Grooves are provided on both sides of the workbench at the female mold mounting groove.

[0007] The female mold is set in the female mold mounting slot of the workbench. The two sides of the female mold are fastened to the workbench by bolts. The bolts are set in the grooves on both sides of the workbench. The female mold has a mold groove and a guide hole at the mold groove.

[0008] The pressing cylinder is located on the upper surface of the top plate and directly above the female mold. The piston rod of the pressing cylinder is equipped with a pressing plate.

[0009] The unloading and pushing mechanism includes an unloading and pushing cylinder, a connecting rod, and a pushing template. The unloading and pushing cylinder is located below the workbench and connected to the support frame. The piston rod of the unloading and pushing cylinder is connected to the bottom end of the connecting rod through a coupling. The connecting rod passes through the through hole of the workbench and the guide hole of the female mold and is connected to the pushing template. The pushing template is movably set in the mold groove of the female mold. The pushing template matches the mold groove. The pushing template and the pressing template are located on the same axis. The outer diameter of the piston rod of the unloading and pushing cylinder is smaller than the inner diameter of the through hole and larger than the inner diameter of the guide hole opened in the female mold.

[0010] The feeding mechanism includes a feeding cylinder, a guide rod, a guide bracket, and a feeding box. The feeding cylinder is mounted on the upper surface of the workbench via the guide bracket. The piston rod of the feeding cylinder is connected to the guide rod via a connector. The guide rod is guided and engaged with the upper part of the bracket. The piston rod of the feeding cylinder is also connected to the feeding box via a flange. The feeding box is slidably disposed on the upper surface of the workbench.

[0011] The material cylinder is located on the upper surface of the top plate, and a feeding pipe is located on the lower surface of the top plate at the material cylinder. The feeding pipe is connected to an electric valve, and the feeding pipe cooperates with the feeding box.

[0012] Preferably, the present invention provides a powder molding machine that facilitates the replacement of the female mold, wherein the female mold has screw holes on both sides, and the screw holes are engaged with bolts.

[0013] Preferably, the present invention provides a powder molding machine that facilitates the replacement of the female mold, wherein the outer surface of the female mold is in close contact with the inner wall of the female mold mounting groove, and the upper surface of the female mold is flush with the upper surface of the worktable.

[0014] Preferably, the powder molding machine provided by this utility model is easy to replace the female mold, wherein the outer diameter of the coupling is larger than the inner diameter of the through hole at the bottom of the worktable.

[0015] Preferably, the powder molding machine provided by this utility model is easy to replace the negative mold, wherein the bottom of the support frame is provided with a fixing foot.

[0016] Preferably, the powder molding machine provided by this utility model is easy to replace the female mold, wherein the upper and lower surfaces of the feeding box are both open structures.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] The piston rod of the unloading push cylinder is connected to the connecting rod with the push plate through a coupling. The two sides of the female mold are fastened to the worktable by bolts. The outer diameter of the piston rod of the unloading push cylinder is smaller than the inner diameter of the through hole and larger than the inner diameter of the guide hole of the female mold. When replacing the female mold, the coupling is removed, the bolts are unloaded, and the connecting rod is pulled upward. The piston rod of the unloading push cylinder pushes outward and abuts against the lower surface of the female mold, thereby pushing the female mold out of the female mold mounting groove. The convenience of replacing the female mold is greatly improved, and labor costs are saved. Attached Figure Description

[0019] Figure 1 This is a side view of the structure of this utility model;

[0020] Figure 2 This is a front view structural diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the female mold.

[0022] In the diagram: 1. Workbench; 2. Support frame; 3. Column; 4. Top plate; 5. Female mold mounting groove; 6. Through hole; 7. Groove; 8. Female mold; 9. Bolt; 10. Mold groove; 11. Guide hole; 12. Downward pressing cylinder; 13. Pressing template; 14. Unloading and pushing cylinder; 15. Connecting rod; 16. Pushing template; 17. Coupling; 18. Feeding cylinder; 19. Guide rod; 20. Guide bracket; 21. Feeding box; 22. Material cylinder; 23. Unloading pipe; 24. Electric valve; 25. Screw hole; 26. Fixing foot. Detailed Implementation

[0023] The technical solution of this 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 this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] It should be noted that in the description of this utility model, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Please see Figure 1-3 This utility model provides a technical solution: a powder molding machine that is easy to replace the female mold, including a frame, a female mold 8, a pressing cylinder 12, a material unloading and pushing mechanism, a feeding mechanism and a material cylinder 22;

[0026] The frame includes a worktable 1, a support frame 2, columns 3 and a top plate 4. The support frame 2 is provided on the lower surface of the worktable 1, and the bottom of the support frame 2 is provided with fixed feet 26 to achieve overall fixed installation. Several columns 3 are provided on both sides of the upper surface of the worktable 1, and the top of the columns 3 are connected to the top plate 4. A female mold mounting groove 5 is opened at one end of the worktable 1. A through hole 6 is opened in the middle position of the worktable 1 at the female mold mounting groove 5. Grooves 7 are opened on both sides of the worktable 1 at the female mold mounting groove 5.

[0027] The female mold 8 is set in the female mold mounting groove 5 of the workbench 1. The outer surface of the female mold 8 is in close contact with the inner wall of the female mold mounting groove 5 to prevent powder from falling into the gap between the female mold 8 and the female mold mounting groove 5. The upper surface of the female mold 8 is flush with the upper surface of the workbench 1 to ensure that the feeding box 21 can slide smoothly on the upper surface of the workbench 1. The two sides of the female mold 8 are fastened to the workbench 1 by bolts 9. The two sides of the female mold 8 are provided with screw holes 25, which are matched with bolts 9 to realize the connection between the female mold 8 and bolts 9, thereby facilitating the fixing and disassembly of the female mold 8. The bolts 9 are set in the grooves 7 on both sides of the workbench 1. The female mold 8 is provided with a mold groove 10, and the female mold 8 is provided with a guide hole 11 at the mold groove 10.

[0028] The pressing cylinder 12 is located on the upper surface of the top plate 4 and directly above the female mold 8. The piston rod of the pressing cylinder 12 is equipped with the pressing plate 13.

[0029] The unloading and pushing mechanism includes an unloading and pushing cylinder 14, a connecting rod 15, and a pushing template 16. The unloading and pushing cylinder 14 is located below the workbench 1 and connected to the support frame 2. The piston rod of the unloading and pushing cylinder 14 is connected to the bottom end of the connecting rod 15 through a coupling 17. The connecting rod 15 passes through the through hole 6 of the workbench 1 and the guide hole 11 of the female mold 8 and is connected to the pushing template 16. The pushing template 16 is movably set in the mold groove 10 of the female mold 8. The pushing template 16 matches the mold groove 10. The pushing template 16 and the pressure plate 13 are located on the same axis. The outer diameter of the piston rod of the unloading and pushing cylinder 14 is smaller than the inner diameter of the through hole 6 and larger than the inner diameter of the guide hole 11 of the female mold 8. The outer diameter of the coupling 17 is larger than the inner diameter of the through hole 6 at the bottom of the workbench 1, so as to ensure that the coupling 17 cannot pass through the through hole 6 and impact the lower surface of the female mold 8 during normal operation.

[0030] The feeding mechanism includes a feeding cylinder 18, a guide rod 19, a guide bracket 20, and a feeding box 21. The feeding cylinder 18 is mounted on the upper surface of the worktable 1 via the guide bracket 20. The piston rod of the feeding cylinder 18 is connected to the guide rod 19 via a connector. The guide rod 19 is guided and engaged with the upper part of the bracket. The piston rod of the feeding cylinder 18 is also connected to the feeding box 21 via a flange. The feeding box 21 is slidably disposed on the upper surface of the worktable 1. The upper and lower surfaces of the feeding box 21 are open structures so that the metal powder can fall smoothly from the feeding pipe 23 into the feeding box 21 and move to the female mold 8. The powder can fall smoothly into the mold groove 10 of the female mold 8.

[0031] The material cylinder 22 is located on the upper surface of the top plate 4, and the material discharge pipe 23 is located on the lower surface of the top plate 4 at the material cylinder 22. The material discharge pipe 23 is connected to an electric valve 24, and the material discharge pipe 23 cooperates with the feeding box 21.

[0032] Working method and operating principle: First, select a suitable female mold 8 for the mold slot 10 according to the workpiece requirements. Then, place the female mold 8 into the female mold mounting slot 5 of the worktable 1. After aligning the holes, tighten the female mold 8 by engaging the bolts 9 with the screw holes 25 on both sides of the female mold 8, thereby fixing the female mold 8 in the female mold mounting slot 5 of the worktable 1. Pass the connecting rod 15 with the push plate 16 through the guide hole 11 of the female mold 8 and the through hole 6 of the worktable 1, and connect it to the piston rod of the lower unloading push cylinder 14 through the coupling 17 to complete the installation of the female mold 8 and the unloading push mechanism. In use, the piston rod of the feeding cylinder 18 is retracted, and the feeding box 21 is positioned directly below the discharge pipe 23. Metal powder is poured into the material cylinder 22, and the discharge of powder is controlled by the electric valve 24, causing a certain amount of metal powder to fall into the feeding box 21. The piston rods of the pressing cylinder 12 and the unloading pushing cylinder 14 are both retracted, and the pushing platen 16 is positioned at the bottom of the mold groove 10. The piston rod of the feeding cylinder 18 pushes outward, moving the feeding box 21 above the female mold 8, allowing the metal powder to fall into the mold groove 10. The piston rod of the feeding cylinder 18 is then retracted, and the feeding box 21 leaves the female mold 8. The pressing cylinder... The piston rod of cylinder 12 pushes outward, causing the pressing platen 13 to enter the mold groove 10 of the female mold 8 and compact the metal powder. Then, the piston rod of the pressing cylinder 12 retracts, and the piston rod of the unloading push cylinder 14 pushes outward, making the upper surface of the push platen 16 flush with the upper surface of the female mold 8. The piston rod of the feeding cylinder 18 pushes outward, and the feeding box 21 pushes the workpiece away from the female mold 8 and discharges it. The piston rod of the feeding cylinder 18 retracts, and at the same time, the piston rod of the unloading push cylinder 14 retracts, the feeding box 21 returns to the female mold 8, and the push platen 16 returns to the bottom of the mold groove 10, completing one molding step. When it is necessary to replace the female mold 8, remove the coupling 17, unscrew the bolt 9, pull the connecting rod 15 upward, push the piston rod of the unloading push cylinder 14 outward and press against the lower surface of the female mold 8, and then push the female mold 8 out of the female mold mounting groove 5. This utility model has a reasonable structure. The piston rod of the unloading and pushing cylinder 14 is connected to the connecting rod 15 with the pushing template 16 via the coupling 17. The two sides of the female mold 8 are fastened to the worktable 1 via bolts 9. The outer diameter of the piston rod of the unloading and pushing cylinder 14 is smaller than the inner diameter of the through hole 6 and larger than the inner diameter of the guide hole 11 of the female mold 8. When replacing the female mold 8, the coupling 17 is removed, the bolts 9 are unloaded, and the connecting rod 15 is pulled upward. The piston rod of the unloading and pushing cylinder 14 pushes outward and abuts against the lower surface of the female mold 8, thereby pushing the female mold 8 out of the female mold mounting groove 5. The convenience of replacing the female mold 8 is greatly improved, and labor costs are saved.

[0033] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0034] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A powder molding machine that facilitates the replacement of the female mold, characterized in that: It includes a frame, a female mold (8), a pressing cylinder (12), a material unloading and pushing mechanism, a feeding mechanism, and a material cylinder (22); The frame includes a workbench (1), a support frame (2), columns (3) and a top plate (4). The support frame (2) is provided on the lower surface of the workbench (1). Several columns (3) are provided on both sides of the upper surface of the workbench (1). The top of the columns (3) is connected to the top plate (4). A female mold mounting groove (5) is provided at one end of the workbench (1). A through hole (6) is provided in the middle position of the workbench (1) at the female mold mounting groove (5). Grooves (7) are provided on both sides of the workbench (1) at the female mold mounting groove (5). The female mold (8) is set in the female mold mounting groove (5) of the workbench (1). The two sides of the female mold (8) are fastened to the workbench (1) by bolts (9). The bolts (9) are set in the grooves (7) on both sides of the workbench (1). The female mold (8) has a mold groove (10). The female mold (8) has a guide hole (11) at the mold groove (10). The pressing cylinder (12) is located on the upper surface of the top plate (4) and directly above the female mold (8). The piston rod of the pressing cylinder (12) is equipped with a pressing plate (13). The unloading and pushing mechanism includes an unloading and pushing cylinder (14), a connecting rod (15), and a pushing template (16). The unloading and pushing cylinder (14) is located below the workbench (1) and connected to the support frame (2). The piston rod of the unloading and pushing cylinder (14) is connected to the bottom end of the connecting rod (15) through a coupling (17). The connecting rod (15) passes through the through hole (6) of the workbench (1) and the guide hole (11) of the female mold (8) and is connected to the pushing template (16). The pushing template (16) is movably arranged in the mold groove (10) of the female mold (8). The pushing template (16) matches the mold groove (10). The pushing template (16) and the pressure plate (13) are located on the same axis. The outer diameter of the piston rod of the unloading and pushing cylinder (14) is smaller than the inner diameter of the through hole (6) and larger than the inner diameter of the guide hole (11) opened in the female mold (8). The feeding mechanism includes a feeding cylinder (18), a guide rod (19), a guide bracket (20), and a feeding box (21). The feeding cylinder (18) is installed on the upper surface of the workbench (1) through the guide bracket (20). The piston rod of the feeding cylinder (18) is connected to the guide rod (19) through a connector. The guide rod (19) is guided and cooperated with the upper part of the bracket. The piston rod of the feeding cylinder (18) is also connected to the feeding box (21) through a flange. The feeding box (21) is slidably disposed on the upper surface of the workbench (1). The material cylinder (22) is located on the upper surface of the top plate (4), and a feeding pipe (23) is located on the lower surface of the top plate (4) at the material cylinder (22). The feeding pipe (23) is connected to an electric valve (24), and the feeding pipe (23) cooperates with the feeding box (21).

2. The powder molding machine for easy mold replacement according to claim 1, characterized in that: The female mold (8) has screw holes (25) on both sides, and the screw holes (25) are engaged with bolts (9).

3. A powder molding machine for easy mold replacement according to claim 1, characterized in that: The outer surface of the female mold (8) is in close contact with the inner wall of the female mold mounting groove (5), and the upper surface of the female mold (8) is flush with the upper surface of the worktable (1).

4. A powder molding machine for easy mold replacement according to claim 1, characterized in that: The outer diameter of the coupling (17) is larger than the inner diameter of the through hole (6) at the bottom of the worktable (1).

5. A powder molding machine for easy mold replacement according to claim 1, characterized in that: The support frame (2) is provided with a fixed foot (26) at the bottom.

6. A powder molding machine for easy mold replacement according to claim 1, characterized in that: The upper and lower surfaces of the feeding box (21) are both open structures.

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