CN116809931A - Powder cold pressing device and method for processing hard alloy - Google Patents
Powder cold pressing device and method for processing hard alloy Download PDFInfo
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- CN116809931A CN116809931A CN202311030348.0A CN202311030348A CN116809931A CN 116809931 A CN116809931 A CN 116809931A CN 202311030348 A CN202311030348 A CN 202311030348A CN 116809931 A CN116809931 A CN 116809931A
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- 239000000843 powder Substances 0.000 title claims abstract description 94
- 238000003825 pressing Methods 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000012545 processing Methods 0.000 title claims abstract description 14
- 239000000956 alloy Substances 0.000 title abstract description 10
- 229910045601 alloy Inorganic materials 0.000 title abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 64
- 230000008569 process Effects 0.000 claims abstract description 14
- 238000007790 scraping Methods 0.000 claims description 27
- 238000005192 partition Methods 0.000 claims description 18
- 230000007246 mechanism Effects 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 10
- 238000003754 machining Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000007493 shaping process Methods 0.000 claims 1
- 230000009471 action Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention relates to the technical field of powder cold pressing, and discloses a powder cold pressing device and a powder cold pressing method for processing hard alloy, which solve the problems that metal powder is easy to spill on the outer surfaces of an operation table and a lower die and has higher precision requirement on adding the metal powder in the process of adding the metal powder into a cavity of the lower die; avoid the metal powder unrestrained each position on the operation panel, make things convenient for the later stage to use, ensure simultaneously that add sufficient metal powder in the die cavity of bed die to and strike off the metal powder that overflows in the die cavity of bed die, improved the precision of adding metal powder.
Description
Technical Field
The invention belongs to the technical field of powder cold pressing, and particularly relates to a powder cold pressing device and method for processing hard alloy.
Background
With the rapid development of fields such as petrochemical industry, mining, smelting, machining, transportation and the like, the demands for high-modulus, high-strength, high-hardness, wear-resistant and corrosion-resistant materials are becoming more and more urgent. The cold pressing device can press loose powder composed of particles into a green body with a certain shape, size, strength and density under a certain pressure and under a certain instrument at room temperature, and has wide application in powder metallurgy, ceramic industry and tablet production generally. In the existing hard alloy processing process, metal powder is placed in a cavity of a lower die, then the metal powder in the lower die is pressed through a pressing forming mechanism, and finally a cold-press formed part is obtained, wherein the metal powder is easy to spill on the outer surfaces of an operating table and the lower die in the process of adding the metal powder into the cavity of the lower die, workers are required to clean regularly in the later period, when more metal powder is added, the density and the weight of the formed part can be increased, when less metal powder is added, the density and the weight of the formed part can be reduced, and the precision requirement for adding the metal powder is high.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides a powder cold pressing device and a powder cold pressing method for processing hard alloy, which effectively solve the problems that in the process of adding metal powder into a cavity of a lower die in the prior art, the metal powder is easy to spill on the outer surfaces of an operating table and the lower die, and the accuracy requirement for adding the metal powder is higher.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a powder cold pressing device that carbide processing was used, the power distribution device comprises an operation bench, the below of operation panel is equipped with the base, base and operation panel are connected through the supporting leg, go up the silo has been seted up on the inner wall of going up the silo, fixedly connected with and feed inlet matched with inlet pipe on the operation panel, first through-hole has been seted up to the bottom inner wall of going up the silo, the top of base is equipped with the lift bush, the top of lift bush runs through first through-hole, and lift bush and base pass through the lifter and connect, be equipped with the bed die in the lift bush, the below of bed die is equipped with the baffle, the inner wall fixed connection of baffle and lift bush, the top of baffle is equipped with the mounting panel, mounting panel and bed die pass through the lock and die holder and connect, be equipped with the ejecting unit with bed die, the below of baffle is equipped with the expansion ring, expansion ring and mounting panel pass through two spliced pole fixed connection, and the outside cover of spliced pole runs through the baffle, the first spring, the both ends of first spring are equipped with the double-sided rack in the lift bush, bottom and base fixed connection, and double-sided rack outside cover are equipped with movable rack and the impact plate and the top of a movable connection seat are equipped with the impact plate through the movable connection, the impact plate is equipped with the impact plate on the movable connection, the top of a movable connection plate is equipped with the movable connection plate, and the top of a movable connection plate is equipped with the impact plate is equipped with on the movable connection plate.
Preferably, the pressing reciprocating stirring assembly comprises a first supporting plate arranged at the bottom of the pressing plate, at least two guide posts are fixedly connected to the first supporting plate, a first fixing plate and a second spring are sleeved outside the guide posts, the first fixing plate and the inner wall of the lifting sleeve are fixedly connected, two ends of the second spring are respectively fixedly connected with the first supporting plate and the first fixing plate, a first support is fixedly connected to the first supporting plate, a single-sided rack is fixedly connected to the first support, a first rotating shaft is arranged on one side of the single-sided rack, a second support is sleeved outside the first rotating shaft, a bearing is arranged at the joint of the first rotating shaft and the second support, a first gear meshed with the single-sided rack is fixedly connected to one end of the second support and the inner wall of the lifting sleeve, and the other end of the first rotating shaft is connected with the scraping plate through a meshing piece.
Preferably, the engagement member comprises a first bevel gear fixedly mounted on the first rotating shaft, a first groove is formed in the inner wall of the lifting sleeve, the first bevel gear is located in the first groove, a second bevel gear meshed with the first bevel gear is arranged in the first groove, a second rotating shaft is fixedly connected to the second bevel gear, the top end of the second rotating shaft is fixedly connected with the scraping plate, and a bearing is arranged at the joint of the second rotating shaft and the lifting sleeve.
Preferably, the stop structure comprises a stop plate fixedly arranged at the top end of the double-sided rack, two second supporting plates are arranged below the stop plate, and the two second supporting plates are fixedly connected with the two impact plates respectively.
Preferably, the elastic piece comprises two sliding plates fixedly mounted on the movable seat, the impact plate is provided with second grooves, the top ends of the two sliding plates are respectively positioned in the two second grooves, and the top of the sliding plate is connected with the top inner wall of the second groove through a third spring.
Preferably, the sliding unit comprises a guide block fixedly mounted on the movable seat, a guide groove is formed in the inner wall of the lifting sleeve, and the guide block is positioned in the guide groove.
Preferably, the shake impactor includes two third pivots that set up in the movable seat below, and two third pivots are located the both sides of two-sided rack respectively, and the outside cover of third pivot is equipped with the second fixed plate, and the junction of third pivot and second fixed plate is equipped with the bearing, and the inner wall fixed connection of second fixed plate and lift cover, the outside fixed cover of third pivot are equipped with the second gear with two-sided rack engaged with, and the outside fixed cover of third pivot is equipped with the carousel, fixedly connected with a plurality of lugs on the carousel.
Preferably, the ejecting unit is including setting up the lifter plate in the baffle below, the second through-hole has been seted up on the baffle, fixedly connected with first hydraulic telescoping rod and ejecting post on the lifter plate, first hydraulic telescoping rod and ejecting post all run through the second through-hole, the bottom fixed connection of top and mounting panel of first hydraulic telescoping rod, the ejecting hole has been seted up on the die cavity inner wall of bed die, ejecting post runs through the mounting panel, and the top of ejecting post is located ejecting hole, the dead setting element of lock includes two fixed mounting in the installation strip of bed die bottom, two third recesses and two movable holes have been seted up on the mounting panel, movable hole and third recess pass through third through-hole intercommunication, two installation strips are located two third recesses respectively, the slot has been seted up respectively to one side that two installation strips kept away from, be equipped with the inserted block in the slot, and the inserted block runs through the third through-hole, one side of inserted block and one side inner wall of movable hole pass through fourth spring coupling, fixedly connected with is located the inclined plate of movable hole on the inserted block, two fourth through-holes have been seted up on the baffle, be equipped with roof in the fourth through-hole, be equipped with in the top and the corresponding roof in the fourth through-hole, the bottom of roof and the movable connection through the bottom of roof, the movable connection plate that the movable connection has the roof.
Preferably, the lifting piece comprises a supporting plate fixedly installed on the lifting sleeve, the supporting plate is connected with the top of the base through a third hydraulic telescopic rod, the pressing forming mechanism comprises a supporting seat arranged above the operating table, the supporting seat is connected with the operating table through a plurality of supporting columns, a fourth hydraulic telescopic rod is fixedly connected with the bottom of the supporting seat, a lifting seat is fixedly connected with the bottom of the fourth hydraulic telescopic rod, and an upper die is fixedly connected with the bottom of the lifting seat.
The invention also provides a powder cold pressing method for processing the hard alloy, which comprises the powder cold pressing device for processing the hard alloy, and comprises the following steps of:
step one: the staff adds metal powder into the trough through the feed pipe and the feed Kong Wangshang, the metal powder is added into the lower die, the lifting sleeve is driven to move upwards through the lifting piece, and the lifting sleeve drives the partition plate and the lower die to move upwards;
step two: in the process of upward movement of the lifting sleeve, the movable seat is periodically impacted by the shaking impacter so as to shake the movable seat in the vertical direction, the movable seat drives the impact plate to impact the bottom of the movable ring through the elastic piece, the movable ring and the connecting column shake in the vertical direction relative to the partition plate, so that the lower die shakes in the vertical direction, and the lower die shakes in the vertical direction so as to uniformly distribute metal powder in the cavity of the lower die;
step three: when the lower die moves up to a preset height, the top end of the lower die penetrates out of the metal powder pile in the feeding groove, the position of the impact plate is limited through the stop structure, so that the impact plate stops moving upwards in the vertical direction, and when the shaking impactor periodically impacts the movable seat again, the impact plate can not impact the movable ring any more, so that the lower die is fixed relative to the lifting sleeve at the moment;
step four: along with the continuous upward movement of the lifting sleeve, the pressing plate drives the scraping plate to rotate by pressing the reciprocating stirring assembly so as to enable the scraping plate to scrape metal powder overflowing from the cavity of the lower die, after the metal powder overflowing from the cavity of the lower die is scraped, the lifting piece stops driving the lifting sleeve to move upward, the lower die and the lifting sleeve move upward to a preset height, and cold pressing treatment is carried out on the metal powder in the lower die by the pressing forming mechanism;
step five: after cold pressing treatment is carried out on the metal powder in the lower die by the pressing forming mechanism, the lifting sleeve and the lower die are driven to move downwards by the lifting piece, and the pressing plate drives the scraping plate to rotate reversely by pressing the reciprocating stirring assembly in the process that the lifting sleeve moves downwards relative to the impact plate, so that the scraping plate is reset to an initial position;
step six: along with the continuous downward movement of the lifting sleeve, when the stop structure does not limit the position of the impact plate any more, the impact plate moves downward synchronously along with the lifting sleeve, along with the continuous downward movement of the lifting sleeve, the movable seat is impacted again by the shaking impacter, and the movable seat drives the lower die to shake vertically through the impact plate so as to separate the inner wall of the cavity of the lower die from the forming part;
step seven: when the lifting sleeve descends to a preset position, the lifting piece stops driving the lifting sleeve to move downwards, the formed piece in the lower die is ejected out through the ejection unit, and after the formed piece in the lower die is taken out, the lifting piece drives the lifting sleeve again to move downwards continuously, so that the lifting sleeve and the lower die reset to the initial positions, and the next powder cold pressing treatment can be performed again.
Compared with the prior art, the invention has the beneficial effects that:
(1) The working personnel adds metal powder into a trough through a feeding pipe and a feeding Kong Wangshang, the metal powder is added into a lower die, a lifting sleeve is driven to move upwards through a lifting piece, a baffle plate and the lower die are driven to move upwards through the lifting sleeve, in the process of moving upwards through the lifting sleeve, a movable seat is periodically impacted through a shaking impact device so as to shake the movable seat in the vertical direction, the movable seat drives an impact plate to impact the bottom of the movable ring through an elastic piece, the movable ring and a connecting column shake in the vertical direction relative to the baffle plate, the lower die shakes in the vertical direction so as to uniformly distribute the metal powder in a cavity of the lower die, when the lower die moves upwards to a preset height, the top end of the lower die penetrates out of a metal powder pile in the upper trough, the position of the impact plate is limited through a stop structure so as to stop the vertical upward movement of the impact plate, when the shake striker periodically strikes the movable seat again, the striking plate can not strike the movable ring again, so that the lower die is fixed relative to the lifting sleeve at the moment, along with the continuous upward movement of the lifting sleeve, the pressing plate drives the scraping plate to rotate by pressing the reciprocating stirring component, so that the scraping plate scrapes metal powder overflowing from the cavity of the lower die, after the metal powder overflowing from the cavity of the lower die is scraped, the lifting piece stops driving the lifting sleeve to move upwards, the lower die and the lifting sleeve move upwards to a preset height, cold pressing treatment is carried out on the metal powder in the lower die through the pressing forming mechanism, after the cold pressing treatment is carried out on the metal powder in the lower die, the lifting sleeve and the lower die are driven to move downwards through the lifting piece, in the process of the downward movement of the lifting sleeve relative to the striking plate, the pressing plate drives the scraping plate to rotate reversely by pressing the reciprocating stirring component, so that the scraping plate is reset to the initial position, along with the continuous downward movement of the lifting sleeve, when the stop structure does not limit the position of the impact plate any more, the impact plate moves downward synchronously with the lifting sleeve, along with the continuous downward movement of the lifting sleeve, the movable seat is driven by the impact plate to shake vertically through the impact plate to separate the inner wall of the cavity of the lower die from the molded part, when the lifting sleeve descends to a preset position, the lifting member stops driving the lifting sleeve to move downward, the molded part in the lower die is ejected through the ejection unit, after the molded part in the lower die is completely extracted, the lifting member drives the lifting sleeve again to move downward continuously, so that the lifting sleeve and the lower die reset to the initial position, the next powder cold pressing treatment can be carried out again, the metal powder is stored in the upper trough, and is added into the cavity of the lower die in the upper trough, so that the metal powder is prevented from being scattered at all positions on the operating table, the later use is convenient, and meanwhile, the sufficient metal powder is ensured to be added in the cavity of the lower die, and the metal powder overflowed from the cavity of the lower die is scraped, and the precision of the added metal powder is improved;
(2) When the lifting sleeve moves upwards, the lifting sleeve drives the impact plate to move upwards synchronously through the elastic piece, when the second supporting plate on the impact plate is contacted with the bottom of the stop plate, the impact plate is static relative to the double-sided rack and the base, the impact plate can not move vertically any more along with the continuous upward movement of the lifting sleeve, meanwhile, the pressing plate on one impact plate presses the first supporting plate along with the continuous upward movement of the lifting sleeve, the first supporting plate, the first bracket and the single-sided rack stop moving upwards along with the lifting sleeve, the guide post moves downwards relative to the first fixed plate, the second spring is in a stretching state, when the lifting sleeve moves upwards, the first gear on the lifting sleeve rolls on the single-sided rack, the first gear drives the first rotating shaft and the first bevel gear to rotate, the first bevel gear drives the second rotating shaft and the scraping plate to rotate through the scraping plate, metal powder overflowed from the cavity of the lower die is scraped through the scraping plate, and when the lifting sleeve moves downwards, the first supporting plate moves upwards relative to the first fixed plate, the first supporting plate and the first supporting plate drives the single-sided rack to rotate reversely, and the first gear rotates reversely, so that the scraping plate rotates reversely to reset the scraping plate and the initial single-sided rack;
(3) When the stop structure limits the position of the impact plate, the impact plate cannot move upwards along the vertical direction of the lifting sleeve, the movable seat pushes the sliding plate to move upwards relative to the impact plate along with the continuous upward movement of the movable seat and the lifting sleeve, the third spring is in a compressed state, when the lifting sleeve and the movable seat move downwards, the length of the third spring is prolonged, when the stop structure does not limit the position of the impact plate any more, the impact plate can impact the movable ring in the vertical direction, the movable seat can stably move relative to the vertical direction of the lifting sleeve through the design of the guide block and the guide groove, when the lifting sleeve moves in the vertical direction, the lifting sleeve drives the third rotating shaft to move in the vertical direction through the second fixing plate, the second gear rolls on the double-sided rack so as to enable the second gear and the third rotating shaft to rotate, and when the convex block on the rotating plate impacts the bottom of the movable seat, the movable seat drives the impact plate to move in the vertical direction through the sliding plate and the third spring so that the impact plate can impact the bottom of the movable ring;
(4) The lifting plate is driven to move in the vertical direction through the first hydraulic telescopic rod, the lifting plate drives the ejection column to move upwards relative to the ejection hole, the forming part in the lower die can be driven to move upwards through the ejection column, the movable plate and the top plate are driven to move upwards through the second hydraulic telescopic rod, the top plate moves on the inclined surface of the inclined plate, the top plate pushes the inclined plate to move in the horizontal direction, the inclined plate drives the inserting block to move, the fourth spring is in a compressed state, when one end of the inserting block is separated from the slot, the limitation on the positions of the mounting bar and the lower die can be released, the lower die is driven to move upwards by a worker, so that the mounting bar is separated from the third groove, the ejection column is separated from the ejection hole, and the lower die can be removed;
(5) The lifting sleeve is driven to move in the vertical direction through the third hydraulic telescopic rod, the height of the lifting sleeve can be adjusted, the lifting seat is driven to move in the vertical direction through the fourth hydraulic telescopic rod, and metal powder in the lower die can be pressed through the upper die.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the operation panel of the present invention in cross section;
FIG. 3 is an enlarged partial schematic view of the present invention at A in FIG. 2;
FIG. 4 is a schematic view of a separator of the present invention in cross-section;
FIG. 5 is a schematic view of the lower die of the present invention in cross section;
FIG. 6 is a schematic view of a stop structure according to the present invention;
FIG. 7 is a schematic view of a strike plate of the present invention in cross-section;
fig. 8 is a schematic structural view of the shake striker according to the present invention.
In the figure: 1. an operation table; 2. a base; 3. support legs; 4. feeding a trough; 5. a feed hole; 6. a feed pipe; 7. a first through hole; 8. a lifting sleeve; 9. a lower die; 10. a partition plate; 11. a mounting plate; 12. a movable ring; 13. a connecting column; 14. a first spring; 15. double-sided racks; 16. a movable seat; 17. an impingement plate; 18. a scraper; 19. pressing the plate; 20. a first pallet; 21. a first bracket; 22. a single-sided rack; 23. a first groove; 24. a first bevel gear; 25. a first rotating shaft; 26. a second bevel gear; 27. a second rotating shaft; 28. a first gear; 29. a second bracket; 30. a guide post; 31. a first fixing plate; 32. a second spring; 33. a stop plate; 34. a second pallet; 35. a guide block; 36. a guide groove; 37. a slide plate; 38. a second groove; 39. a third spring; 40. a third rotating shaft; 41. a second fixing plate; 42. a second gear; 43. a turntable; 44. a bump; 45. a lifting plate; 46. a second through hole; 47. a first hydraulic telescoping rod; 48. an ejection hole; 49. an ejection column; 50. a mounting bar; 51. a third groove; 52. a movable hole; 53. a third through hole; 54. inserting blocks; 55. a fourth spring; 56. a slot; 57. an inclined plate; 58. a fourth through hole; 59. a top plate; 60. a movable plate; 61. a second hydraulic telescoping rod; 62. a support plate; 63. a third hydraulic telescoping rod; 64. a support base; 65. a support column; 66. a fourth hydraulic telescoping rod; 67. a lifting seat; 68. and (5) feeding a die.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The first embodiment is shown in fig. 1 to 8, the invention comprises an operation table 1, a base 2 is arranged below the operation table 1, the base 2 is connected with the operation table 1 through supporting legs 3, a feeding groove 4 is arranged on the operation table 1, a feeding hole 5 is arranged on the inner wall of the feeding groove 4, a feeding pipe 6 matched with the feeding hole 5 is fixedly connected to the operation table 1, a first through hole 7 is arranged on the inner wall of the bottom of the feeding groove 4, a lifting sleeve 8 is arranged above the base 2, the top end of the lifting sleeve 8 penetrates through the first through hole 7, the lifting sleeve 8 is connected with the base 2 through a lifting piece, a lower die 9 is arranged in the lifting sleeve 8, a partition board 10 is arranged below the lower die 9, the partition board 10 is fixedly connected with the inner wall of the lifting sleeve 8, a mounting plate 11 is arranged at the top of the partition board 10, the mounting plate 11 is connected with the lower die 9 through a locking positioning piece, an ejection unit matched with the lower die 9 is arranged on the mounting plate 11, the lower part of the partition plate 10 is provided with a movable ring 12, the movable ring 12 and the mounting plate 11 are fixedly connected through at least two connecting columns 13, the connecting columns 13 penetrate through the partition plate 10, a first spring 14 is sleeved outside the connecting columns 13, two ends of the first spring 14 are respectively abutted against the movable ring 12 and the partition plate 10, a double-sided rack 15 is arranged in the lifting sleeve 8, the bottom end of the double-sided rack 15 is fixedly connected with the base 2, a movable seat 16 is sleeved outside the double-sided rack 15, the movable seat 16 and the lifting sleeve 8 are connected through a sliding unit, two striking plates 17 are arranged above the movable seat 16, the striking plates 17 and the movable seat 16 are connected through elastic pieces, a shaking striker matched with the movable seat 16 is arranged on the lifting sleeve 8, a stop structure matched with the striking plates 17 is arranged on the double-sided rack 15, the top of the striking plates 17 is contacted with the bottom of the movable ring 12, a scraping plate 18 is arranged on the top of the lifting sleeve 8, one of the impact plates 17 is fixedly connected with a pressing plate 19, the scraping plate 18 is connected with the pressing plate 19 through a pressing reciprocating toggle assembly, and the operating platform 1 is provided with a pressing forming mechanism; the metal powder is stored in the feeding groove 4, and the metal powder is added in the feeding groove 4 to the cavity of the lower die 9, so that the metal powder is prevented from being scattered at each position on the operating table 1, the later use is convenient, the sufficient metal powder is added in the cavity of the lower die 9, the metal powder overflowed from the cavity of the lower die 9 is scraped, and the accuracy of adding the metal powder is improved.
In the second embodiment, based on the first embodiment, as shown in fig. 2, fig. 3 and fig. 6, the pressing reciprocating toggle assembly comprises a first supporting plate 20 arranged at the bottom of a pressing plate 19, at least two guide posts 30 are fixedly connected to the first supporting plate 20, a first fixing plate 31 and a second spring 32 are sleeved outside the guide posts 30, the first fixing plate 31 is fixedly connected with the inner wall of a lifting sleeve 8, two ends of the second spring 32 are respectively fixedly connected with the first supporting plate 20 and the first fixing plate 31, a first bracket 21 is fixedly connected to the first supporting plate 20, a single-sided rack 22 is fixedly connected to the first bracket 21, one side of the single-sided rack 22 is provided with a first rotating shaft 25, a second bracket 29 is sleeved outside the first rotating shaft 25, a bearing is arranged at the joint of the first rotating shaft 25 and the second bracket 29, one end of the first rotating shaft 25 is fixedly connected with a first gear 28 meshed with the single-sided rack 22, the other end of the first rotating shaft 25 is connected with a scraper 18 through a meshing piece, the meshing piece comprises a first bevel gear 24 fixedly arranged on the first rotating shaft 25 and a second bevel gear 23, a second bevel gear 23 is fixedly connected with the first rotating shaft 23 and a second bevel gear 23, a stop groove 33 is arranged on the second rotating shaft 23 is fixedly connected with the second rotating shaft 25, and a stop groove 33 is arranged on the second rotating shaft 23, and the stop groove is fixedly connected with the first rotating plate 18, and the stop groove is provided with the second rotating plate is provided with the second rotating shaft 25, and the first rotating plate is provided with the second supporting plate, and the stop plate is provided with the stop plate, and the stop device is provided with the stop device, and has a stop device, and is provided with stop device, and is provided;
when the lifting sleeve 8 moves upwards, the lifting sleeve 8 drives the impact plate 17 to move upwards synchronously through the elastic piece, when the second supporting plate 34 on the impact plate 17 is in contact with the bottom of the stop plate 33, the impact plate 17 is static relative to the double-sided rack 15 and the base 2, the impact plate 17 does not move vertically any more along with the continuous upwards movement of the lifting sleeve 8, meanwhile, the pressing plate 19 on one impact plate 17 presses the first supporting plate 20 along with the continuous upwards movement of the lifting sleeve 8, the first supporting plate 20, the first bracket 21 and the single-sided rack 22 stop to move upwards along with the lifting sleeve 8, the guide post 30 moves downwards relative to the first fixed plate 31, the second spring 32 is in a stretching state, when the lifting sleeve 8 moves upwards, the first gear 28 on the lifting sleeve 8 rolls on the single-sided rack 22, the first rotating shaft 25 and the first bevel gear 24 are driven to rotate through the second bevel gear 26, the first rotating shaft 27 and the scraping plate 18 scrape metal powder overflowing from the cavity of the lower die 9 along with the continuous upwards movement of the lifting sleeve 8, and when the lifting sleeve 8 moves downwards, the second spring 32 drives the first supporting plate 20 and the first bracket 21 to rotate relative to the first supporting plate 22 reversely, and the first supporting plate 22 is driven to rotate reversely, and finally the first supporting plate 22 rotates to rotate correspondingly to the first supporting plate 22 and the first supporting plate 22 rotates reversely.
In the third embodiment, based on the first embodiment, as shown in fig. 2, fig. 6, fig. 7 and fig. 8, the elastic member includes two sliding plates 37 fixedly installed on the movable seat 16, a second groove 38 is formed on the impact plate 17, the top ends of the two sliding plates 37 are respectively located in the two second grooves 38, the top of the sliding plate 37 and the top inner wall of the second groove 38 are connected through a third spring 39, the sliding unit includes a guide block 35 fixedly installed on the movable seat 16, a guide groove 36 is formed on the inner wall of the lifting sleeve 8, the guide block 35 is located in the guide groove 36, the shake striker includes two third rotating shafts 40 arranged below the movable seat 16, the two third rotating shafts 40 are respectively located at two sides of the double-sided rack 15, a second fixing plate 41 is sleeved outside the third rotating shafts 40, a bearing is arranged at the joint of the third rotating shafts 40 and the second fixing plate 41, the second fixing plate 41 is fixedly connected with the inner wall of the lifting sleeve 8, a second gear 42 meshed with the double-sided rack 15 is arranged outside the third rotating shafts 40, and a plurality of rotating discs 43 are fixedly connected with rotating discs 43 are arranged outside the third rotating shafts 43;
when the stop structure limits the position of the impact plate 17, the impact plate 17 cannot move up along with the vertical direction of the lifting sleeve 8, along with the continuous upward movement of the movable seat 16 and the lifting sleeve 8, the movable seat 16 pushes the sliding plate 37 to move up relative to the impact plate 17, the third spring 39 is in a compressed state, when the lifting sleeve 8 and the movable seat 16 move down, the length of the third spring 39 becomes longer, when the stop structure does not limit the position of the impact plate 17 any more, the impact plate 17 can impact the movable ring 12 in the vertical direction, through the design of the guide block 35 and the guide groove 36, the movable seat 16 can stably move relative to the lifting sleeve 8 in the vertical direction, when the lifting sleeve 8 moves in the vertical direction, the lifting sleeve 8 drives the third rotating shaft 40 to move in the vertical direction through the second fixed plate 41, the second gear 42 rolls on the third rotating shaft 15, so that the second gear 42 and the third rotating shaft 40 rotate, when the double-sided bumps 44 on the rotating plate 43 impact the bottom of the movable seat 16, the movable seat 16 drives the impact plate 17 to move in the vertical direction through the second gear 40, and the impact plate 17 can impact the bottom of the movable ring 12.
In the fourth embodiment, as shown in fig. 4 and 5, based on the first embodiment, the ejector unit includes a lifting plate 45 disposed below the partition plate 10, a second through hole 46 is formed in the partition plate 10, a first hydraulic telescopic rod 47 and an ejector post 49 are fixedly connected to the lifting plate 45, the first hydraulic telescopic rod 47 and the ejector post 49 penetrate through the second through hole 46, the top end of the first hydraulic telescopic rod 47 is fixedly connected with the bottom of the mounting plate 11, an ejector hole 48 is formed in the inner wall of a cavity of the lower mold 9, the ejector post 49 penetrates through the mounting plate 11, the top end of the ejector post 49 is located in the ejector hole 48, the locking positioning piece includes two mounting strips 50 fixedly mounted at the bottom of the lower mold 9, two third grooves 51 and two movable holes 52 are formed in the mounting plate 11, the movable holes 52 and the third grooves 51 are communicated through a third through holes 53, the two mounting strips 50 are respectively located in the two third grooves 51, one sides of the two mounting strips 50 far away from each other are respectively provided with a slot 56, an insert block 54 is arranged in the slot 56, the insert block 54 penetrates through the third through hole 53, one side of the insert block 54 is connected with the bottom plate 60 through the second through hole 58, one side of the movable top plate 52 is connected with the top plate 60, which is connected with the top plate 60 through the movable top plate 58, and the top plate 60 is connected to the top plate 60, which is connected to the top plate 60 through the movable top plate 58, and the top plate 60 is provided with the movable top plate 55, and the top plate 60, which is connected to the top plate 60, and the top plate 60 is connected to the top plate and the top plate 60 through the top plate 55 through the top plate and the movable plate and the top plate 55 through the top plate and has the top plate 55;
the lifting plate 45 is driven to move vertically through the first hydraulic telescopic rod 47, the lifting plate 45 drives the ejection column 49 to move upwards relative to the ejection hole 48, the formed part in the lower die 9 can be driven to move upwards through the ejection column 49, the movable plate 60 and the top plate 59 are driven to move upwards through the second hydraulic telescopic rod 61, the top plate 59 moves on the inclined surface of the inclined plate 57, the inclined plate 57 is pushed to move horizontally by the top plate 59, the insert block 54 is driven to move by the inclined plate 57, the fourth spring 55 is in a compressed state, when one end of the insert block 54 is separated from the slot 56, the limitation on the positions of the mounting bar 50 and the lower die 9 can be released, the lower die 9 is driven to move upwards by a worker, so that the mounting bar 50 is separated from the third groove 51, and the ejection column 49 is separated from the ejection hole 48, so that the lower die 9 can be removed.
In the fifth embodiment, as shown in fig. 1, on the basis of the first embodiment, the lifting member includes a supporting plate 62 fixedly installed on the lifting sleeve 8, the supporting plate 62 is connected with the top of the base 2 through a third hydraulic telescopic rod 63, the pressing forming mechanism includes a supporting seat 64 disposed above the operating table 1, the supporting seat 64 is connected with the operating table 1 through a plurality of supporting columns 65, a fourth hydraulic telescopic rod 66 is fixedly connected with the bottom of the supporting seat 64, a lifting seat 67 is fixedly connected with the bottom of the fourth hydraulic telescopic rod 66, and an upper die 68 is fixedly connected with the bottom of the lifting seat 67; the height of the lifting sleeve 8 can be adjusted by driving the supporting plate 62 and the lifting sleeve 8 to move in the vertical direction through the third hydraulic telescopic rod 63, and the metal powder in the lower die 9 can be pressed through the upper die 68 by driving the lifting seat 67 and the upper die 68 to move in the vertical direction through the fourth hydraulic telescopic rod 66.
The powder cold pressing method for processing the hard alloy of the embodiment comprises the powder cold pressing device for processing the hard alloy, and comprises the following steps of:
step one: the staff adds metal powder into the feeding groove 4 through the feeding pipe 6 and the feeding hole 5, the metal powder is added into the lower die 9, the lifting sleeve 8 is driven to move upwards through the lifting piece, and the lifting sleeve 8 drives the partition board 10 and the lower die 9 to move upwards;
step two: in the process of upward movement of the lifting sleeve 8, the movable seat 16 is periodically impacted by the shaking impacter to shake in the vertical direction of the movable seat 16, the movable seat 16 drives the impact plate 17 to impact the bottom of the movable ring 12 by the elastic piece, the movable ring 12 and the connecting column 13 shake in the vertical direction relative to the partition plate 10, so that the lower die 9 shakes in the vertical direction, and the lower die 9 shakes in the vertical direction to uniformly distribute metal powder in the cavity of the lower die 9;
step three: when the lower die 9 moves up to a preset height, the top end of the lower die 9 penetrates out of the metal powder pile in the feeding groove 4, the position of the impact plate 17 is limited through the stop structure, so that the impact plate 17 stops moving upwards in the vertical direction, and when the shaking impactor periodically impacts the movable seat 16 again, the impact plate 17 does not impact the movable ring 12 any more, so that the lower die 9 is fixed relative to the lifting sleeve 8 at the moment;
step four: along with the continuous upward movement of the lifting sleeve 8, the pressing plate 19 drives the scraping plate 18 to rotate by pressing the reciprocating stirring assembly so as to enable the scraping plate 18 to scrape off metal powder overflowing from the cavity of the lower die 9, after the metal powder overflowing from the cavity of the lower die 9 is scraped off, the lifting piece stops driving the lifting sleeve 8 to move upwards, the lower die 9 and the lifting sleeve 8 move upwards to a preset height, and cold pressing treatment is carried out on the metal powder in the lower die 9 by the pressing forming mechanism;
step five: after cold pressing treatment is carried out on the metal powder in the lower die 9 by the pressing forming mechanism, the lifting sleeve 8 and the lower die 9 are driven to move downwards by the lifting piece, and in the process that the lifting sleeve 8 moves downwards relative to the impact plate 17, the pressing plate 19 drives the scraping plate 18 to rotate reversely by pressing the reciprocating stirring assembly so as to reset the scraping plate 18 to an initial position;
step six: as the lifting sleeve 8 continuously moves downwards, when the stop structure no longer limits the position of the impact plate 17, the impact plate 17 synchronously moves downwards along with the lifting sleeve 8, as the lifting sleeve 8 continuously moves downwards, the movable seat 16 is impacted again by the shaking impactor, and the movable seat 16 drives the lower die 9 to shake vertically through the impact plate 17 so as to separate the inner wall of the cavity of the lower die 9 from the forming part;
step seven: when the lifting sleeve 8 descends to a preset position, the lifting piece stops driving the lifting sleeve 8 to move downwards, the formed piece in the lower die 9 is ejected through the ejection unit, and after the formed piece in the lower die 9 is taken out, the lifting piece drives the lifting sleeve 8 again to move downwards continuously, so that the lifting sleeve 8 and the lower die 9 reset to the initial positions, and then the next powder cold pressing treatment can be performed again.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a powder cold pressing device that carbide processing was used, includes operation panel (1), its characterized in that: the lower part of operation panel (1) is equipped with base (2), base (2) and operation panel (1) are connected through supporting leg (3), go up and have seted up on operation panel (1) material loading groove (4), set up feed port (5) on the inner wall of material loading groove (4), fixedly connected with and feed port (5) matched with inlet pipe (6) on operation panel (1), first through-hole (7) have been seted up to the bottom inner wall of material loading groove (4), the top of base (2) is equipped with lift cover (8), first through-hole (7) are run through on the top of lift cover (8), and lift cover (8) are connected through the lifter, be equipped with bed die (9) in lift cover (8), the below of bed die (9) is equipped with baffle (10), the inner wall fixed connection of baffle (10) and lift cover (8), the top of baffle (10) is equipped with mounting panel (11), mounting panel (11) and bed die (9) are connected through locking setting element, be equipped with the matched with ejection unit of bed die (9) on mounting panel (11), the below of baffle (10) is equipped with ring (12) and connect through two at least expansion link (13) and connect two expansion link (13), the outside cover of spliced pole (13) is equipped with first spring (14), the both ends of first spring (14) respectively with expansion ring (12) and baffle (10) looks butt, be equipped with double-sided rack (15) in lift sleeve (8), the bottom and the base (2) fixed connection of double-sided rack (15), the outside cover of double-sided rack (15) is equipped with movable seat (16), movable seat (16) and lift sleeve (8) are connected through the sliding unit, the top of movable seat (16) is equipped with two striking boards (17), striking board (17) and movable seat (16) are connected through the elastic component, be equipped with on lift sleeve (8) with movable seat (16) matched with shake striker, be equipped with on double-sided rack (15) with striking board (17) matched with stop structure, the top of striking board (17) contacts with the bottom of expansion ring (12), the top of lift sleeve (8) is equipped with scraper blade (18), fixedly connected with on one of them striking board (17) presses down board (19), scraper blade (18) and pressing board (19) are connected through pressing down reciprocal subassembly and are equipped with on operating panel (1) shaping mechanism.
2. The powder cold pressing device for machining cemented carbide according to claim 1, wherein: the pressing reciprocating stirring assembly comprises a first supporting plate (20) arranged at the bottom of a pressing plate (19), at least two guide posts (30) are fixedly connected to the first supporting plate (20), a first fixing plate (31) and a second spring (32) are sleeved outside the guide posts (30), the first fixing plate (31) and the inner wall of a lifting sleeve (8) are fixedly connected, two ends of the second spring (32) are fixedly connected with the first supporting plate (20) and the first fixing plate (31) respectively, a first support (21) is fixedly connected to the first supporting plate (20), a single-sided rack (22) is fixedly connected to the first support (21), a first rotating shaft (25) is arranged on one side of the single-sided rack (22), a second support (29) is sleeved outside the first rotating shaft (25), a bearing is arranged at the joint of the first rotating shaft (25) and the second support (29), one end of the first rotating shaft (25) is fixedly connected with a first gear (28) meshed with the single-sided rack (22), and the other end of the first rotating shaft (25) is meshed with a scraper (18).
3. A powder cold pressing apparatus for cemented carbide machining according to claim 2, wherein: the meshing piece comprises a first bevel gear (24) fixedly mounted on a first rotating shaft (25), a first groove (23) is formed in the inner wall of the lifting sleeve (8), the first bevel gear (24) is located in the first groove (23), a second bevel gear (26) meshed with the first bevel gear (24) is arranged in the first groove (23), a second rotating shaft (27) is fixedly connected to the second bevel gear (26), the top end of the second rotating shaft (27) is fixedly connected with the scraping plate (18), and a bearing is arranged at the joint of the second rotating shaft (27) and the lifting sleeve (8).
4. The powder cold pressing device for machining cemented carbide according to claim 1, wherein: the stop structure comprises a stop plate (33) fixedly arranged at the top end of the double-sided rack (15), two second supporting plates (34) are arranged below the stop plate (33), and the two second supporting plates (34) are fixedly connected with the two impact plates (17) respectively.
5. The powder cold pressing device for machining cemented carbide according to claim 1, wherein: the elastic piece comprises two sliding plates (37) fixedly mounted on the movable seat (16), second grooves (38) are formed in the impact plate (17), the top ends of the two sliding plates (37) are respectively located in the two second grooves (38), and the top of the sliding plates (37) and the top inner wall of the second grooves (38) are connected through third springs (39).
6. The powder cold pressing device for machining cemented carbide according to claim 1, wherein: the sliding unit comprises a guide block (35) fixedly arranged on the movable seat (16), a guide groove (36) is formed in the inner wall of the lifting sleeve (8), and the guide block (35) is positioned in the guide groove (36).
7. The powder cold pressing device for machining cemented carbide according to claim 1, wherein: the shake impactor includes two third pivot (40) that set up in movable seat (16) below, two third pivot (40) are located the both sides of two-sided rack (15) respectively, the outside cover of third pivot (40) is equipped with second fixed plate (41), the junction of third pivot (40) and second fixed plate (41) is equipped with the bearing, the inner wall fixed connection of second fixed plate (41) and lift cover (8), the outside fixed cover of third pivot (40) is equipped with second gear (42) with two-sided rack (15) engaged with, the outside fixed cover of third pivot (40) is equipped with carousel (43), fixedly connected with a plurality of lug (44) on carousel (43).
8. The powder cold pressing device for machining cemented carbide according to claim 1, wherein: the ejection unit comprises a lifting plate (45) arranged below a partition plate (10), a second through hole (46) is formed in the partition plate (10), a first hydraulic telescopic rod (47) and an ejection column (49) are fixedly connected to the lifting plate (45), the first hydraulic telescopic rod (47) and the ejection column (49) are all communicated with the second through hole (46), the top end of the first hydraulic telescopic rod (47) is fixedly connected with the bottom of a mounting plate (11), the ejection hole (48) is formed in the inner wall of a cavity of a lower die (9), the ejection column (49) penetrates the mounting plate (11), the top end of the ejection column (49) is positioned in the ejection hole (48), the locking positioning piece comprises two mounting strips (50) fixedly mounted at the bottom of the lower die (9), two third grooves (51) and two movable holes (52) are formed in the mounting plate (11), the movable holes (52) and the third grooves (51) are communicated through third through holes (53), the two mounting strips (50) are respectively positioned in the two third grooves (51), one sides of the two mounting strips (50) are respectively provided with an insertion slot (54) far away from the third through hole (54), one side of the inserting block (54) is connected with one side inner wall of the movable hole (52) through a fourth spring (55), an inclined plate (57) positioned in the movable hole (52) is fixedly connected to the inserting block (54), two fourth through holes (58) are formed in the partition plate (10), a top plate (59) is arranged in the fourth through holes (58), the top end of the top plate (59) is contacted with the corresponding inclined plate (57), a movable plate (60) is fixedly connected to the bottom end of the top plate (59), and the top of the movable plate (60) is connected with the bottom of the mounting plate (11) through a second hydraulic telescopic rod (61).
9. The powder cold pressing device for machining cemented carbide according to claim 1, wherein: the lifting piece comprises a supporting plate (62) fixedly installed on a lifting sleeve (8), the supporting plate (62) is connected with the top of a base (2) through a third hydraulic telescopic rod (63), the pressing forming mechanism comprises a supporting seat (64) arranged above an operating table (1), the supporting seat (64) is connected with the operating table (1) through a plurality of supporting columns (65), a fourth hydraulic telescopic rod (66) is fixedly connected with the bottom of the supporting seat (64), a lifting seat (67) is fixedly connected with the bottom of the fourth hydraulic telescopic rod (66), and an upper die (68) is fixedly connected with the bottom of the lifting seat (67).
10. A powder cold pressing method for cemented carbide processing comprising the powder cold pressing apparatus for cemented carbide processing according to claim 1, characterized by: the method comprises the following steps:
step one: a worker adds metal powder into the feeding groove (4) through the feeding pipe (6) and the feeding hole (5), the metal powder is added into the lower die (9), the lifting sleeve (8) is driven to move upwards through the lifting piece, and the lifting sleeve (8) drives the partition plate (10) and the lower die (9) to move upwards;
step two: in the process of upward movement of the lifting sleeve (8), the movable seat (16) is periodically impacted by the shaking impacter to shake the movable seat (16) in the vertical direction, the movable seat (16) drives the impact plate (17) to impact the bottom of the movable ring (12) through the elastic piece, the movable ring (12) and the connecting column (13) shake in the vertical direction relative to the partition plate (10), so that the lower die (9) shakes in the vertical direction, and metal powder is uniformly distributed in the cavity of the lower die (9) through shaking the lower die (9) in the vertical direction;
step three: when the lower die (9) moves up to a preset height, the top end of the lower die (9) penetrates out of the metal powder pile in the feeding groove (4), the position of the impact plate (17) is limited through the stop structure, so that the impact plate (17) stops moving upwards in the vertical direction, and when the shaking impactor periodically impacts the movable seat (16) again, the impact plate (17) cannot impact the movable ring (12) any more, so that the lower die (9) is fixed relative to the lifting sleeve (8) at the moment;
step four: along with the continuous upward movement of the lifting sleeve (8), the pressing plate (19) drives the scraping plate (18) to rotate by pressing the reciprocating stirring assembly, so that the scraping plate (18) scrapes metal powder overflowing from the cavity of the lower die (9), after the metal powder overflowing from the cavity of the lower die (9) is scraped, the lifting piece stops driving the lifting sleeve (8) to move upwards, the lower die (9) and the lifting sleeve (8) move to a preset height, and cold pressing treatment is performed on the metal powder in the lower die (9) through the pressing forming mechanism;
step five: after cold pressing treatment is carried out on metal powder in the lower die (9) by the pressing forming mechanism, the lifting sleeve (8) and the lower die (9) are driven to move downwards by the lifting piece, and in the process that the lifting sleeve (8) moves downwards relative to the impact plate (17), the pressing plate (19) drives the scraping plate (18) to rotate reversely by pressing the reciprocating stirring assembly so as to reset the scraping plate (18) to an initial position;
step six: along with the continuous downward movement of the lifting sleeve (8), when the stop structure does not limit the position of the impact plate (17), the impact plate (17) moves downward synchronously along with the lifting sleeve (8), along with the continuous downward movement of the lifting sleeve (8), the movable seat (16) is impacted again by the shaking impactor, and the movable seat (16) drives the lower die (9) to shake in the vertical direction through the impact plate (17), so that the inner wall of the cavity of the lower die (9) is separated from a formed part;
step seven: when the lifting sleeve (8) descends to a preset position, the lifting piece stops driving the lifting sleeve (8) to move downwards, the formed piece located in the lower die (9) is ejected through the ejection unit, after the formed piece in the lower die (9) is taken out, the lifting piece drives the lifting sleeve (8) to move downwards continuously again, so that the lifting sleeve (8) and the lower die (9) reset to the initial positions, and then the next powder cold pressing treatment can be performed again.
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| CN202311030348.0A CN116809931A (en) | 2023-08-16 | 2023-08-16 | Powder cold pressing device and method for processing hard alloy |
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| CN202311030348.0A CN116809931A (en) | 2023-08-16 | 2023-08-16 | Powder cold pressing device and method for processing hard alloy |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117358935A (en) * | 2023-10-13 | 2024-01-09 | 江苏威拉里新材料科技有限公司 | Cooling device for preparing metal powder by gas atomization |
| CN118123024A (en) * | 2024-05-10 | 2024-06-04 | 常州格瑞特粉末冶金有限公司 | Forming equipment for powder metallurgy herringbone gear workpiece machining die |
| CN118287671A (en) * | 2024-06-05 | 2024-07-05 | 蓬莱市超硬复合材料有限公司 | Powder cold pressing equipment for hard alloy processing |
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2023
- 2023-08-16 CN CN202311030348.0A patent/CN116809931A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117358935A (en) * | 2023-10-13 | 2024-01-09 | 江苏威拉里新材料科技有限公司 | Cooling device for preparing metal powder by gas atomization |
| CN118123024A (en) * | 2024-05-10 | 2024-06-04 | 常州格瑞特粉末冶金有限公司 | Forming equipment for powder metallurgy herringbone gear workpiece machining die |
| CN118123024B (en) * | 2024-05-10 | 2024-06-25 | 常州格瑞特粉末冶金有限公司 | Forming equipment for powder metallurgy herringbone gear workpiece machining die |
| CN118287671A (en) * | 2024-06-05 | 2024-07-05 | 蓬莱市超硬复合材料有限公司 | Powder cold pressing equipment for hard alloy processing |
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