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CN-121988739-A - Powder metallurgy compacting die

CN121988739ACN 121988739 ACN121988739 ACN 121988739ACN-121988739-A

Abstract

The invention discloses a powder metallurgy pressing die, which belongs to the technical field of powder metallurgy and comprises a base, wherein a plurality of support rods are fixedly arranged at the upper end of the base, lock sleeves are connected to the bottoms of the support rods in a threaded manner, an upper die assembly is arranged between the tops of the support rods, the packing assembly can implement a packing function on the die, a recovery assembly is arranged on the packing assembly, the recovery assembly can perform a recovery circulation function on the residual crushed aggregates on the surface of a lower die assembly, and the rear end of the upper die assembly is fixedly connected with two fixing plates.

Inventors

  • LIU WEIWEI
  • ZHANG WEIBO
  • Jiang Zhizhu
  • YU LIANLIAN
  • SHI LIWEI

Assignees

  • 莱州鲁俊粉末冶金有限公司

Dates

Publication Date
20260508
Application Date
20260226

Claims (10)

  1. 1. The powder metallurgy pressing die comprises a base (1) and is characterized in that a plurality of support rods (2) are fixedly arranged at the upper end of the base (1), and lock sleeves (3) are connected to the bottoms of the support rods (2) in a threaded manner; An upper die assembly (4) is arranged among the tops of the support rods (2), a lower die assembly (5) is arranged at the upper end of the base (1), a filler assembly (6) is arranged on the lower die assembly (5), and the filler assembly (6) can perform a filler function on a die; The packing assembly (6) is provided with a recovery assembly (7), the recovery assembly (7) can perform a recovery circulation function on the crushed aggregates remained on the surface of the lower die assembly (5), and the rear end of the upper die assembly (4) is fixedly connected with two fixing plates (8).
  2. 2. The powder metallurgy pressing die according to claim 1, wherein the upper die assembly (4) comprises a mounting seat (401) fixedly connected between the tops of the plurality of support rods (2), a first hydraulic cylinder (402) is mounted on the top of the mounting seat (401), an upper die plate (403) is fixedly connected to the output end of the first hydraulic cylinder (402), the upper die plate (403) is slidably connected between the plurality of support rods (2), and a pressing column (404) and a plurality of guide rods (405) are fixedly connected to the bottom of the upper die plate (403).
  3. 3. The powder metallurgy pressing die according to claim 2, wherein the lower die assembly (5) comprises a second hydraulic cylinder (501) fixedly installed inside a base (1), a linkage plate (502) is fixedly installed at the output end of the second hydraulic cylinder (501), a plurality of linkage rods (503) are fixedly connected to the top of the linkage plate (502), a lower die plate (504) is fixedly installed between the tops of the plurality of linkage rods (503), a U-shaped supporting piece (505) is fixedly connected to the top of the base (1), a demolding column (506) is fixedly connected to the top of the U-shaped supporting piece (505), and a die pressing hole (507) is formed in the top of the lower die plate (504).
  4. 4. A powder metallurgy pressing die according to claim 3, wherein the outer wall of the U-shaped support member (505) is provided with a plurality of guide grooves, and a plurality of guide rods (405) are adapted to the corresponding guide grooves.
  5. 5. The powder metallurgy pressing mold according to claim 1, wherein the packing assembly (6) comprises a hopper (601) fixedly installed between the tops of two fixing plates (8), an upper trough (602) is formed in one side of the inside of the hopper (601), two first connecting plates (603) are fixedly connected to the top of the lower die plate (504), mounting rods (604) are fixedly connected to the front end and the rear end of the top of the two first connecting plates (603), a second connecting plate (605) is slidingly connected between each two mounting rods (604), a plurality of springs (606) are slidingly connected to the outer walls of the mounting rods (604) and are positioned between the first connecting plates (603) and the second connecting plates (605), nuts (607) are screwed to the upper ends of the outer walls of the mounting rods (604), bearings (608) are arranged between the two groups of the first connecting plates (603) and the second connecting plates (605), connecting rods (609) are fixedly installed on the inner sides, a pushing block (6011) is arranged between the two pushing blocks, a top portion (6011) is provided with a pushing block 6012) and a bottom portion (6011) is provided with a pushing block 6012, a feeding pipe (6013) is connected between the feeding hole (6012) and the feeding groove (602), a supporting plate (6014) and a hydraulic rod (6015) are fixedly arranged at the rear end of the lower die plate (504), and the output end of the hydraulic rod (6015) is fixedly connected with the rear end of the pushing block (6010).
  6. 6. Powder metallurgy pressing die according to claim 5, characterized in that the outer walls of the two bearings (608) are tightly attached to the corresponding end faces of the first connecting plate (603) and the second connecting plate (605), respectively.
  7. 7. Powder metallurgy pressing die according to claim 5, characterized in that both sides of the pushing block (6010) are closely attached to the inner sides of the corresponding first connecting plates (603), and both the first connecting plates (603) are parallel to each other.
  8. 8. The powder metallurgy pressing die according to claim 5, wherein the recovery component (7) comprises a recovery groove (701) formed in the bottom of a pushing block (6010), two first connecting plates (603) and second connecting plates (605) are respectively provided with a mounting groove (702), two mounting grooves (702) in the second connecting plates (605) are respectively fixedly connected with a plurality of racks (703), a gear (704) is respectively arranged between each two mounting grooves (702), a brush (705) is fixedly arranged between the inner sides of the gears (704), the brush (705) penetrates through the recovery groove (701), two air suction inlets (706) are formed in the top of the pushing block (6010), a return groove (707) is formed in the other side of the inner side of the hopper (601), a recovery opening (708) is formed in the top of the pushing block (6010), a return pipe (709) is arranged between the recovery opening (708) and the return groove (707), a motor (7010) is arranged on one side of the rear end of the hopper (601), a motor (7010) is fixedly connected with a negative pressure roller (7011), and a transmission rod (7011) is fixedly arranged on the outer wall of the negative pressure roller (7011).
  9. 9. A powder metallurgy pressing die according to claim 8, wherein two of the gears (704) are respectively engaged with the corresponding racks (703), and both sides of the two gears (704) are respectively matched with the corresponding mounting grooves (702).
  10. 10. The powder metallurgy pressing die according to claim 8, characterized in that a plurality of fan blades are provided on an outer wall of the negative pressure roller (7012), and the plurality of fan blades are uniformly distributed around an axis of the negative pressure roller (7012).

Description

Powder metallurgy compacting die Technical Field The invention belongs to the technical field of powder metallurgy, and particularly relates to a powder metallurgy pressing die. Background The powder metallurgy technology is an advanced manufacturing technology for preparing metal materials, composite materials and various products by molding, sintering and other processes from metal powder or a mixture of metal and non-metal powder, has the remarkable advantages of high material utilization rate, high molding precision, capability of preparing parts with complex shapes and the like, is widely applied to a plurality of fields of mechanical manufacture, automobile industry, aerospace, electronic information and the like, takes a pressing die as core equipment of a powder metallurgy molding process, directly influences the dimensional precision, density uniformity of a molded blank and the yield of a subsequent sintering process by structural design, in the powder metallurgy pressing process, the die is required to realize the core functions of quantitative filling, accurate pressing, stable demolding and the like of powder, at present, the development trend of the powder metallurgy pressing die gradually approaches to the automatic, high-precision and multifunctional directions, various die casting dies integrating the functions of automatic filling, demolding, residual material treatment and the like are continuously emerging for meeting the large-scale production requirement, and the production efficiency and the quality stability of powder metallurgy products are effectively improved by optimizing the mechanical transmission structure, the hydraulic driving system, the guide positioning assembly and the like of the die. In the existing powder metallurgy pressing die processing process, a large amount of metal powder remnants are easy to remain on the upper surface of an upper die, if the remnants are not cleaned timely, the subsequent pressing forming precision and the product quality can be directly affected, a shutdown manual cleaning mode is generally adopted for cleaning the remnants in the current industry, the mode has various defects, the production efficiency and the processing quality are seriously restricted from being improved, the production efficiency can be greatly reduced, the manual cleaning is required to be stopped firstly and the equipment is completely stationary, the equipment is required to be restarted and parameter debugging is carried out after the cleaning is finished, the single cleaning process consumes long time, the production process is frequently interrupted, and the effective processing time is seriously compressed. Disclosure of Invention The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a powder metallurgy pressing die. The technical scheme for solving the technical problems is that the powder metallurgy pressing die comprises a base, wherein a plurality of support rods are fixedly arranged at the upper end of the base, and lock sleeves are connected to the bottoms of the support rods in a threaded manner; An upper die assembly is arranged among the tops of the support rods, a lower die assembly is arranged at the upper end of the base, a filling assembly is arranged on the lower die assembly, and the filling assembly can perform a filling function on the die; The packing assembly is provided with a recovery assembly, the recovery assembly can perform recovery circulation function on the residual crushed aggregates on the surface of the lower die assembly, and the rear end of the upper die assembly is fixedly connected with two fixing plates. Further, the upper die assembly comprises a mounting seat fixedly connected between the tops of the support rods, a first hydraulic cylinder is mounted at the top of the mounting seat, an upper die plate is fixedly connected to the output end of the first hydraulic cylinder, the upper die plate is slidably connected between the support rods, and a pressing column and a plurality of guide rods are fixedly connected to the bottom of the upper die plate. Through the technical scheme, after the packing assembly finishes packing, the first hydraulic cylinder is started, the output end of the first hydraulic cylinder extends downwards to push the upper die plate to slide downwards along the axial direction of the supporting rod, meanwhile, the guide rod at the bottom of the upper die plate is embedded into the lower die assembly to realize high-precision guide alignment of the upper die and the lower die, and as the first hydraulic cylinder extends continuously, set pressure is applied to metal powder in the hole to finish powder compression molding. Further, lower die assembly includes fixed mounting in the inside second pneumatic cylinder of base, second pneumatic cylinder output fixed mounting has the linkage board, linkage board top fixedly connected with a plurality of gangbar