Pre-pressing type powder metallurgy die

Abstract

The utility model discloses a prepressing type powder metallurgy mould, relates to metallurgical processing field, the prepressing type powder metallurgy mould comprises a support rack, the top end of the support rack is provided with a sliding feeding assembly, the prepressing type powder metallurgy mould also comprises a driving assembly and a prepressing metallurgical mechanism, sliding blocks are fixedly connected to the opposite positions of the two sides of the bottom end of the material storage box, the bottom ends of the sliding blocks are slidably connected with two sliding grooves, the bottom ends of the two sliding grooves are fixedly connected to the supporting rack, and the driving assembly comprises a driving rod. And in addition, the functions that gaps in powder are eliminated in an oscillation mode, it is guaranteed that the quality of produced workpieces is better, and materials are better pushed to prevent material waste are achieved, so that the problems that the quality of finished products manufactured through existing powder metallurgy is not qualified, and material loss is high are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical processing, in particular to a pre-pressed powder metallurgy die. Background Art

[0002] Powder metallurgy is a process that uses metal powder (or a mixture of metal and non-metallic powders) as raw material, forming and sintering it to create metal materials, composite materials, and various other products. Powder metallurgy shares similarities with ceramic production, both involving powder sintering techniques. Therefore, a range of new powder metallurgy technologies can also be applied to the preparation of ceramic materials. Due to its advantages, powder metallurgy has become the key to solving new material problems and plays a vital role in the development of new materials.

[0003] At present, most of the existing powder metallurgy methods use manual labor to place powder in a mold, and then directly use hydraulic blocks to hydraulically press the powder to shape the powder, and then sinter it to process it into metal parts. However, most of the existing powder metallurgy methods often cause powder to scatter when adding metal powder, resulting in a bad air environment and waste of materials, which affects costs. In addition, most of the existing powder metallurgy methods directly use hydraulic blocks to press the powder, and there is often a possibility that voids in the powder may cause the surface of the molded workpiece to be bumpy, affecting the quality of the workpiece production. Utility Model Content

[0004] The utility model provides a pre-pressed powder metallurgy mold, which has the function of pre-pressing the powder in advance while performing hydraulic metallurgy on the powder, and also has the function of oscillating and eliminating the gaps in the powder, thereby ensuring that the quality of the produced workpiece is better and the material is pushed better to prevent material waste, so as to solve the problem that the quality of the finished products manufactured by existing powder metallurgy is not up to standard and the material loss is high.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a pre-pressed powder metallurgy mold, comprising a support frame, a sliding feeding assembly provided on the top of the support frame, a driving assembly and a pre-pressing metallurgical mechanism, wherein:

[0006] The sliding feeding assembly includes a material storage box, and sliding blocks are fixedly connected to the relative positions on both sides of the bottom end of the material storage box. The bottom end of the sliding block is slidably connected to two slide grooves, and the bottom ends of the two slide grooves are fixedly connected to the support frame;

[0007] The driving assembly includes a driving rod, one end of each of the two driving rods is connected to the storage box;

[0008] The pre-pressing metallurgical mechanism includes a top plate, the top end of which is fixedly connected to two hydraulic cylinders, and the bottom end of which is fixedly connected to a plurality of support rods.

[0009] As a preferred technical solution of the present invention, a material guide trough is fixedly connected to one side of the support stand, and a baffle is fixedly connected to the top of the material guide trough.

[0010] As a preferred technical solution of the present invention, the other end of the driving rod is rotatably connected to the second transmission arm, the end of the second transmission arm away from the driving rod is rotatably connected to the first transmission arm through the second adjusting shaft, one end of the first transmission arm is rotatably connected to the first adjusting shaft, one end of the first adjusting shaft is fixedly connected to a rotating disk, and a driving motor is provided at the end of the rotating disk away from the first transmission arm, and the bottom end of the driving motor is fixed by a base.

[0011] As a preferred technical solution of the present invention, the bottom end of the storage box is rotatably connected to a box door via a hinge, and the bottom end of the box door is fixedly connected to a sliding block.

[0012] As an optimal technical solution of the present invention, the output end of the hydraulic cylinder is fixedly connected to a pre-compression block, and the output end of the hydraulic cylinder is penetrated by a top plate, and the bottom ends of the multiple support rods are fixedly connected to a pre-compression box, and the inner wall of the pre-compression box is provided with a pre-compression groove.

[0013] As an optimal technical solution of the present invention, connecting plates are fixedly connected on both sides of the outer wall of the pre-compression box, the bottom ends of multiple connecting plates are fixedly connected to spring feet, and vibrators are fixedly connected on the other two sides of the outer wall of the pre-compression box.

[0014] As a preferred technical solution of the present invention, a mold stop block is slidably connected in the pre-pressing groove, and a spring support is fixedly connected to the bottom end of the mold stop block.

[0015] Compared with the prior art, the present invention provides a pre-pressed powder metallurgy mold with the following beneficial effects:

[0016] 1. The utility model directly drives the pre-pressing block to press down through the hydraulic cylinder, firstly pressing the powder in the pre-pressing groove, and at the same time, through the vibration of the vibrator, the gaps between the powders inside the pre-pressing groove are collapsed and smaller due to the vibration, and then the pre-pressing block is slowly pressed down to remove the gaps in the powder, so that the surface of the workpiece is smoother, the quality of the workpiece is better, the surface is smoother, and the internal pores are smaller.

[0017] 2. The utility model drives the storage box and the sliding block to slide in the slide groove through the driving rod. The box door rotatably connected to the bottom of the storage box can slide with the storage box and open and close according to the angle of the sliding block to push the material into the guide groove and transmit it to the pre-pressing groove, so that the material will not be scattered during the pushing process, and manual pushing and cleaning is no longer required, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is the structural diagram of the pre-pressing metallurgical mechanism of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the sliding feeding mechanism of the utility model;

[0021] Figure 4 This is a structural diagram of the drive assembly of the utility model;

[0022] Figure 5 This is a schematic diagram of the bottom connection structure of the storage box of the utility model.

[0023] In the figure: 1. Support stand; 2. Sliding feeding assembly; 21. Storage box; 22. Sliding block; 23. Slide groove; 24. Guide trough; 25. Baffle; 26. Hinge; 27. Box door; 28. Sliding block; 3. Driving assembly; 31. Driving motor; 32. Rotating disk; 33. First adjusting shaft; 34. First transmission arm; 35. Second adjusting shaft; 36. Second transmission arm; 37. Driving rod; 4. Pre-stressing metallurgical mechanism; 41. Top plate; 42. Hydraulic cylinder; 43. Pre-stressing block; 44. Support rod; 45. Pre-stressing box; 46. Pre-stressing groove; 47. Connecting plate; 48. Spring support foot; 49. Vibrator; 410. Mould support block; 411. Spring support. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0025] See also Figure 1 - Figure 5The utility model discloses a pre-pressed powder metallurgy mold, comprising a support frame 1, a sliding feeding assembly 2 is provided on the top of the support frame 1, a driving assembly 3 and a pre-pressing metallurgical mechanism 4, wherein:

[0026] The sliding feeding assembly 2 includes a material storage box 21, and the bottom end of the material storage box 21 is fixedly connected to the relative positions on both sides thereof. The bottom end of the sliding block 22 is slidably connected to two chutes 23, and the bottom ends of the two chutes 23 are fixedly connected to the support frame 1;

[0027] The driving assembly 3 includes a driving rod 37, one end of each of the two driving rods 37 is connected to the storage box 21;

[0028] The pre-pressing metallurgical mechanism 4 includes a top plate 41 , the top end of the top plate 41 is fixedly connected to two hydraulic cylinders 42 , and the bottom end of the top plate 41 is fixedly connected to a plurality of support rods 44 .

[0029] Please refer to the attached Figure 1 and Figure 4 A material guide trough 24 is fixedly connected to one side of the support frame 1, and a baffle 25 is fixedly connected to the top of the material guide trough 24. The other end of the driving rod 37 is rotatably connected to the second transmission arm 36. The end of the second transmission arm 36 away from the driving rod 37 is rotatably connected to the first transmission arm 34 through the second adjusting shaft 35. One end of the first transmission arm 34 is rotatably connected to the first adjusting shaft 33. One end of the first adjusting shaft 33 is fixedly connected to the rotating disk 32. A driving motor 31 is provided at the end of the rotating disk 32 away from the first transmission arm 34, and the bottom end of the driving motor 31 is fixed through the base.

[0030] Please refer to the attached Figure 1 、 Figure 3 and Figure 5 The bottom end of the storage box 21 is rotatably connected to a box door 27 through a hinge 26, and the bottom end of the box door 27 is fixedly connected to a sliding block 28;

[0031] The first lever 34 is engaged with the first adjusting lever 35 and the second adjusting lever 35 is engaged with the first adjusting lever 35 so as to engage the first adjusting lever 35 and engage the second adjusting lever 35. The second adjusting lever 35 is engaged with the first adjusting lever 35 and the second adjusting lever 35 is engaged with the first adjusting lever 35. The second adjusting lever 35 is engaged with the first adjusting lever 35 and the second adjusting lever 35 is engaged with the second adjusting lever 35. Example 2

[0032] Based on the above embodiment 1, please refer to the attached Figure 1 and Figure 2 The output end of the hydraulic cylinder 42 is fixedly connected to a pre-stressing block 43, and the output end of the hydraulic cylinder 42 passes through a top plate 41, the bottom ends of multiple support rods 44 are fixedly connected to a pre-stressing box 45, the inner wall of the pre-stressing box 45 is provided with a pre-stressing groove 46, and both sides of the outer wall of the pre-stressing box 45 are fixedly connected to connecting plates 47, the bottom ends of multiple connecting plates 47 are fixedly connected to spring feet 48, and the other two sides of the outer wall of the pre-stressing box 45 are fixedly connected to vibrators 49.

[0033] As an optimal technical solution of the present invention, the driving motor 31 drives the rotating disk 32 and the first adjusting shaft 33 to rotate, so that the first transmission arm 34 can rotate along with the rotating disk 32, so that the first transmission arm 34 rotates accordingly, and the first transmission arm 34 drives the second adjusting shaft 35 to rotate, so that the second transmission arm 36 drives the driving rod 37 to slide linearly, and the driving rod 37 drives the storage box 21 and the sliding block 22 to slide in the slide groove 23. The box door 27 rotatably connected to the bottom of the storage box 21 can slide along with the storage box 21 and open and close according to the angle of the sliding block 28, so as to push the material into the guide trough 24 and transmit it to the pre-pressing groove 46, so that the material will not be scattered during the pushing process, and manual pushing and cleaning is no longer required, which is more convenient to use.

[0034] The working principle and use process of the present invention are as follows: when pre-pressing, the hydraulic cylinder 42 drives the pre-pressing block 43 to press down, firstly pressing the powder in the pre-pressing groove 46, and at the same time, the vibrator 49 vibrates to make the gaps between the powders inside the pre-pressing groove 46 collapse and become smaller due to the vibration, and then the pre-pressing block 43 slowly presses down to remove the gaps in the powder, so that the surface of the workpiece is smoother and the pores inside the workpiece are smaller. When it is pressed down to the bottom, after the pre-pressing is completed, the pre-pressing block 43 continues to press down, pressing the bottom mold block 410 to press down, thereby driving the spring support 411 to rebound, and the greater the downward pressure, the greater the rebound force, thereby completely extruding and molding the workpiece;

[0035] When feeding, the driving motor 31 drives the rotating disk 32 and the first adjusting shaft 33 to rotate, so that the first transmission arm 34 can rotate along with the rotating disk 32, so that the first transmission arm 34 rotates accordingly, and the second adjusting shaft 35 is driven to rotate by the first transmission arm 34, so that the second transmission arm 36 drives the driving rod 37 to slide linearly, and the driving rod 37 drives the storage box 21 and the sliding block 22 to slide in the slide groove 23, and the box door 27 rotatably connected to the bottom of the storage box 21 can slide with the storage box 21, and open and close according to the angle of the sliding block 28, so as to push the material into the guide trough 24 and transmit it to the pre-pressing groove 46.

Claims

1. A pre-pressed powder metallurgy mold, comprising a support stand (1), characterized in that: The top of the support frame (1) is provided with a sliding feeding assembly (2), and also includes a driving assembly (3) and a pre-pressing metallurgical mechanism (4), wherein: the sliding feeding assembly (2) includes a storage box (21), and the bottom of the storage box (21) is fixedly connected to sliding blocks (22) at relative positions on both sides, and the bottom of the sliding block (22) is slidably connected to two slide grooves (23), and the bottom ends of the two slide grooves (23) are fixedly connected to the support frame (1); The driving assembly (3) includes a driving rod (37), one end of each of the two driving rods (37) is connected to the storage box (21); The pre-pressing metallurgical mechanism (4) comprises a top plate (41), the top end of the top plate (41) is fixedly connected to two hydraulic cylinders (42), and the bottom end of the top plate (41) is fixedly connected to a plurality of support rods (44).

2. The pre-pressed powder metallurgy mold according to claim 1, characterized in that: A material guide trough (24) is fixedly connected to one side of the support stand (1), and a baffle (25) is fixedly connected to the top of the material guide trough (24).

3. The pre-pressed powder metallurgy mold according to claim 1, characterized in that: The other end of the driving rod (37) is rotatably connected to the second transmission arm (36), and the end of the second transmission arm (36) away from the driving rod (37) is rotatably connected to the first transmission arm (34) via a second adjustment shaft (35). One end of the first transmission arm (34) is rotatably connected to the first adjustment shaft (33), and one end of the first adjustment shaft (33) is fixedly connected to a rotating disk (32). The end of the rotating disk (32) away from the first transmission arm (34) is provided with a driving motor (31), and the bottom end of the driving motor (31) is fixed via a base.

4. The pre-pressed powder metallurgy mold according to claim 3, characterized in that: The bottom end of the storage box (21) is rotatably connected to a box door (27) via a hinge (26), and the bottom end of the box door (27) is fixedly connected to a sliding block (28).

5. The pre-pressed powder metallurgy mold according to claim 4, characterized in that: The output end of the hydraulic cylinder (42) is fixedly connected to a pre-pressing block (43), and the output end of the hydraulic cylinder (42) passes through a top plate (41). The bottom ends of the plurality of support rods (44) are fixedly connected to a pre-pressing box (45), and the inner wall of the pre-pressing box (45) is provided with a pre-pressing groove (46).

6. The pre-pressed powder metallurgy mold according to claim 5, characterized in that: Connecting plates (47) are fixedly connected to both sides of the outer wall of the pre-press box (45), and spring legs (48) are fixedly connected to the bottom ends of the plurality of connecting plates (47). Vibrators (49) are fixedly connected to the other two sides of the outer wall of the pre-press box (45).

7. The pre-pressed powder metallurgy mold according to claim 5, characterized in that: A mold stop block (410) is slidably connected in the pre-pressing groove (46), and a spring support (411) is fixedly connected to the bottom end of the mold stop block (410).

Images