A rotary ejection mechanism for metal powder mold

Abstract

The utility model discloses a rotary ejection mechanism for a metal powder mold, comprising: a support platform, four supporting legs fixedly mounted on the bottom wall of the support platform, a fixed mold fixedly mounted on the top wall of the support platform, four supporting rods fixedly mounted on the top wall of the support platform, a top plate fixedly welded to the top ends of the four supporting rods, a hydraulic rod fixedly mounted on the top plate, a movable mold fixedly mounted on the bottom end of the hydraulic rod, two racks arranged on the movable mold, two symmetrically arranged fixed seats fixedly welded on the bottom wall of the support platform, rotating rods rotatably mounted on the two fixed seats, gears fixedly mounted on both ends of the rotating rods, a gate frame fixedly mounted on the bottom wall of the support platform, and two ejection assemblies arranged on the gate frame. The utility model realizes that the product can be automatically ejected from the fixed mold cavity during the mold opening process of the movable mold, without adding additional driving force to the ejection mechanism of the mold, with good energy-saving effect and reduced mold use cost.

Description

Technical Field

[0001] The utility model relates to the technical field of mold ejection mechanisms, in particular to a metal powder mold rotary ejection mechanism. Background Art

[0002] Metal powder injection molding is widely used as a method for manufacturing metal sintered bodies with complex shapes. It is a method of injection molding a mixture of metal powder and organic binder in the cavity of a molding mold, degreasing and sintering the resulting molded product to manufacture a metal sintered body of the desired shape. The sintered body in the metal powder mold needs to be demolded after molding.

[0003] When using the existing rotary ejection mechanism of the metal powder mold, most of them need to add additional driving equipment to drive it, which makes the metal powder mold energy-saving effect poor and the use cost high. In this regard, we propose a rotary ejection mechanism for the metal powder mold to solve the above-mentioned problems. Utility Model Content

[0004] The utility model aims to provide a metal powder mold rotary ejection mechanism to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a metal powder mold rotary ejection mechanism, comprising:

[0006] A support platform, four supporting legs are fixedly installed on the bottom wall of the support platform, a fixed mold is fixedly installed on the top wall of the support platform, four supporting rods are fixedly installed on the top wall of the support platform, top plates are fixedly welded to the top ends of the four supporting rods, a hydraulic rod is fixedly installed on the top plate, a movable mold is fixedly installed on the bottom end of the hydraulic rod, two racks are arranged on the movable mold, two symmetrically arranged fixing seats are fixedly welded on the bottom wall of the support platform, rotating rods are rotatably installed on the two fixing seats, gears are fixedly installed on both ends of the rotating rods, a portal frame is fixedly installed on the bottom wall of the support platform, two ejection assemblies are arranged on the portal frame, driven bevel gears are arranged on the two ejection assemblies, two active bevel gears are fixedly installed on the rotating rod, and the two active bevel gears are respectively meshed and connected with the two driven bevel gears.

[0007] Preferably, the ejection assembly includes a stud and a screw sleeve, the stud is rotatably mounted on the portal frame, the screw sleeve is slidably connected to the bottom wall of the fixed mold, the screw sleeve is threadedly connected to the stud, and a ejection plate is fixedly mounted on the top end of the screw sleeve.

[0008] Preferably, the driven bevel gear is fixedly mounted on the bottom end of the stud.

[0009] Preferably, two guide columns are fixedly welded on the bottom wall of the fixed mold, and the two guide columns are respectively arranged on one side of the two screw sleeves. Guide blocks are fixedly welded on the two screw sleeves, and the two guide blocks are respectively slidably connected to the two guide columns through the opened through holes.

[0010] Preferably, mounting rods are fixedly installed on both side walls of the movable mold, connecting rods are fixedly welded on the two mounting rods, movable plates are fixedly welded on the bottom ends of the two connecting rods, and the two racks are respectively fixedly welded on one side wall of the two movable plates close to the gear.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] When the utility model is in use, when the movable mold is opened, the movable mold drives the rack to rise through the cooperation of the arranged mounting rod, the connecting rod and the movable plate. When the movable mold rises to a certain height, the rack contacts and meshes with the gear, so that the rack can make the gear rotate positively during the rising process, thereby driving the rotating rod to rotate positively. When the rotating rod rotates positively, the active bevel gear can be driven to rotate. The active bevel gear can drive the stud to rotate on the portal frame through the meshing connection with the driven bevel gear, drive the screw sleeve to rise, thereby drive the ejector plate to move upward, and eject the product out of the fixed mold cavity. This realizes that the product can be automatically ejected out of the fixed mold cavity during the opening process of the movable mold, and there is no need to add additional driving force to the ejection mechanism of the mold. The energy-saving effect is good, and the use cost of the mold is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional structural schematic diagram of a metal powder mold rotary ejection mechanism proposed by the utility model;

[0014] Figure 2 This is a front view of the cross-section structure of a support platform in a rotary ejection mechanism for a metal powder mold proposed by the utility model;

[0015] Figure 3 The utility model provides a metal powder mold rotary ejection mechanism. Figure 2 Enlarged structural diagram at point A in the middle.

[0016] In the figure: 1, support platform; 2, support leg; 3, fixed mold; 4, support rod; 5, ejector plate; 6, hydraulic rod; 7, movable mold; 8, rack; 9, fixed seat; 10, rotating rod; 11, gear; 12, portal frame; 13, ejector assembly; 14, driven bevel gear; 15, driving bevel gear; 16, stud; 17, screw sleeve; 18, ejector plate; 19, guide column; 20, guide block; 21, mounting rod; 22, connecting rod; 23, movable plate. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-3 The utility model provides a technical solution: a metal powder mold rotary ejection mechanism, comprising:

[0019] A support platform 1, wherein four supporting legs 2 are fixedly mounted on the bottom wall of the support platform 1, a fixed mold 3 is fixedly mounted on the top wall of the support platform 1, four supporting rods 4 are fixedly mounted on the top wall of the support platform 1, a top plate 5 is fixedly welded to the top ends of the four supporting rods 4, a hydraulic rod 6 is fixedly mounted on the top plate 5, a movable mold 7 is fixedly mounted on the bottom end of the hydraulic rod 6, two racks 8 are arranged on the movable mold 7, two symmetrically arranged fixing seats 9 are fixedly welded on the bottom wall of the support platform 1, a rotating rod 10 is rotatably mounted on the two fixing seats 9, gears 11 are fixedly mounted on both ends of the rotating rod 10, a portal frame 12 is fixedly mounted on the bottom wall of the support platform 1, two ejection assemblies 13 are arranged on the portal frame 12, driven bevel gears 14 are arranged on the two ejection assemblies 13, two active bevel gears 15 are fixedly mounted on the rotating rod 10, and the two active bevel gears 15 are respectively meshed and connected with the two driven bevel gears 14.

[0020] The ejection assembly 13 includes a stud 16 and a screw sleeve 17. The stud 16 is rotatably mounted on the portal frame 12. The screw sleeve 17 is slidably connected to the bottom wall of the fixed mold 3. The screw sleeve 17 is threadedly connected to the stud 16. A push plate 18 is fixedly mounted on the top of the screw sleeve 17. When the stud 16 rotates, the screw sleeve 17 can be driven to rise and fall, thereby driving the push plate 18 to rise and fall.

[0021] The driven bevel gear 14 is fixedly mounted on the bottom end of the stud 16 . When the rotating rod 10 rotates, the driving bevel gear 15 can be driven to rotate. The driving bevel gear 15 can drive the stud 16 to rotate on the portal frame 12 by meshing with the driven bevel gear 14 .

[0022] Two guide columns 19 are fixedly welded on the bottom wall of the fixed mold 3, and the two guide columns 19 are respectively arranged on one side of the two screw sleeves 17. Guide blocks 20 are fixedly welded on the two screw sleeves 17. The two guide blocks 20 are respectively slidably connected to the two guide columns 19 through the opened through holes. The screw sleeves 17 can be moved and guided by the sliding cooperation between the set guide blocks 20 and the guide columns 19.

[0023] The movable mold 7 has mounting rods 21 fixedly mounted on both side walls, the two mounting rods 21 are fixedly welded with connecting rods 22, the bottom ends of the two connecting rods 22 are fixedly welded with moving plates 23, and the two racks 8 are respectively fixedly welded on one side wall of the two moving plates 23 close to the gear 11. When the movable mold 7 is opened and closed, the rack 8 can be driven to rise and fall by the cooperation of the mounting rods 21, the connecting rods 22 and the moving plates 23. During the lifting process, the rack 8 can drive the gear 11 to rotate by meshing with the gear 11, thereby driving the rotating rod 10 to rotate.

[0024] Working principle: When the utility model is in use, when the movable mold 7 is opened, the movable mold 7 drives the rack 8 to rise through the cooperation of the set mounting rod 21, the connecting rod 22 and the movable plate 23. When the movable mold 7 rises to a certain height, the rack 8 contacts and meshes with the gear 11, so that the rack 8 can make the gear 11 rotate forward during the rising process, thereby driving the rotating rod 10 to rotate forward. When the rotating rod 10 rotates forward, it can drive the active bevel gear 15 to rotate. The active bevel gear 15 can drive the stud 16 to rotate on the door frame 12 through the meshing connection with the driven bevel gear 14, drive the screw sleeve 17 to rise, thereby driving the ejector plate 18 to move upward, and eject the product out of the fixed mold cavity, so that the movable mold 7 can automatically eject the product out of the fixed mold cavity during the mold opening process, without adding additional driving force to the ejection mechanism of the mold, with good energy-saving effect and reduced mold use cost.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal powder mold rotary ejection mechanism, characterized in that: include: A support platform (1), wherein four support legs (2) are fixedly mounted on the bottom wall of the support platform (1), a fixed mold (3) is fixedly mounted on the top wall of the support platform (1), four support rods (4) are fixedly mounted on the top wall of the support platform (1), a top plate (5) is fixedly welded to the top ends of the four support rods (4), a hydraulic rod (6) is fixedly mounted on the top plate (5), a movable mold (7) is fixedly mounted on the bottom end of the hydraulic rod (6), two racks (8) are arranged on the movable mold (7), and two symmetrically arranged fixed seats ( 9), a rotating rod (10) is rotatably mounted on the two fixed seats (9), gears (11) are fixedly mounted on both ends of the rotating rod (10), a door frame (12) is fixedly mounted on the bottom wall of the support platform (1), two ejection assemblies (13) are arranged on the door frame (12), and driven bevel gears (14) are arranged on the two ejection assemblies (13), and two active bevel gears (15) are fixedly mounted on the rotating rod (10), and the two active bevel gears (15) are respectively meshed and connected with the two driven bevel gears (14).

2. A metal powder mold rotary ejection mechanism according to claim 1, characterized in that: The ejection assembly (13) comprises a stud (16) and a screw sleeve (17), wherein the stud (16) is rotatably mounted on the portal frame (12), the screw sleeve (17) is slidably connected to the bottom wall of the fixed mold (3), the screw sleeve (17) is threadedly connected to the stud (16), and a ejection plate (18) is fixedly mounted on the top end of the screw sleeve (17).

3. A metal powder mold rotary ejection mechanism according to claim 2, characterized in that: The driven bevel gear (14) is fixedly mounted on the bottom end of the stud (16).

4. A metal powder mold rotary ejection mechanism according to claim 2, characterized in that: Two guide columns (19) are fixedly welded on the bottom wall of the fixed mold (3), and the two guide columns (19) are respectively arranged on one side of the two screw sleeves (17). Guide blocks (20) are fixedly welded on the two screw sleeves (17), and the two guide blocks (20) are respectively slidably connected to the two guide columns (19) through the through holes.

5. A metal powder mold rotary ejection mechanism according to claim 1, characterized in that: Mounting rods (21) are fixedly mounted on both side walls of the movable mold (7), connecting rods (22) are fixedly welded on the two mounting rods (21), moving plates (23) are fixedly welded at the bottom ends of the two connecting rods (22), and the two racks (8) are respectively fixedly welded on one side wall of the two moving plates (23) close to the gear (11).

Images