CN116765390B - Powder metallurgy part press forming machine - Google Patents
Powder metallurgy part press forming machine Download PDFInfo
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- CN116765390B CN116765390B CN202310993499.XA CN202310993499A CN116765390B CN 116765390 B CN116765390 B CN 116765390B CN 202310993499 A CN202310993499 A CN 202310993499A CN 116765390 B CN116765390 B CN 116765390B
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- fixedly connected
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- 238000004663 powder metallurgy Methods 0.000 title claims abstract description 24
- 238000003825 pressing Methods 0.000 claims abstract description 40
- 239000000843 powder Substances 0.000 claims abstract description 30
- 238000004080 punching Methods 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 9
- 239000010720 hydraulic oil Substances 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000748 compression moulding Methods 0.000 abstract description 10
- 230000035939 shock Effects 0.000 description 5
- 239000006096 absorbing agent Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- CUZMQPZYCDIHQL-VCTVXEGHSA-L calcium;(2s)-1-[(2s)-3-[(2r)-2-(cyclohexanecarbonylamino)propanoyl]sulfanyl-2-methylpropanoyl]pyrrolidine-2-carboxylate Chemical compound [Ca+2].N([C@H](C)C(=O)SC[C@@H](C)C(=O)N1[C@@H](CCC1)C([O-])=O)C(=O)C1CCCCC1.N([C@H](C)C(=O)SC[C@@H](C)C(=O)N1[C@@H](CCC1)C([O-])=O)C(=O)C1CCCCC1 CUZMQPZYCDIHQL-VCTVXEGHSA-L 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009702 powder compression Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/03—Press-moulding apparatus therefor
Abstract
The invention discloses a powder metallurgy part compression molding machine, which relates to the technical field of powder metallurgy and aims at the existing problem that only one side is pressed, and the scheme is now provided that the powder metallurgy part compression molding machine comprises a base and a lower die arranged on the upper side of the base, wherein a plurality of stand columns are fixedly connected to the upper side of the base, a top plate is fixedly connected to the upper ends of the stand columns together, a punching mechanism matched with the lower die is arranged on the lower side of the top plate, a feeding mechanism for moving powder to the inner side of the lower die is arranged on the upper side of the base, a pressing mechanism for pressing the powder on the inner side of the lower die is arranged on the lower side of the base, the upper pressing mechanism is mutually matched with the punching mechanism to press the powder from the upper side and the lower side simultaneously, and a jacking mechanism matched with the pressing mechanism is arranged on the inner side of the lower die.
Description
Technical Field
The invention relates to the technical field of powder metallurgy, in particular to a powder metallurgy part compression molding machine.
Background
The shock absorber is used for inhibiting the vibration of the spring in rebound after shock absorption and the impact from the road surface, is widely used for automobiles, is used for accelerating the attenuation of the vibration of a frame and an automobile body so as to improve the running smoothness of the automobiles, and when the automobile passes through an uneven road surface, the shock absorber spring can filter the vibration of the road surface, but the spring can also reciprocate, and the shock absorber is used for inhibiting the spring from jumping, and the shock absorber comprises a plurality of small accessories which are generally manufactured through stamping and powder metallurgy, but in order to improve the strength of the accessories, the small accessories are generally formed through powder metallurgy pressing.
The invention discloses a powder metallurgy part press forming machine in China patent publication No. CN114273654A, which belongs to the technical field of powder metallurgy; the problem of low press forming processing efficiency of the powder metallurgy part with the existing multilayer structure is solved; the powder metallurgy part press forming machine comprises a frame with a working table plate, an avoidance driving mechanism and a layered pre-pressing device positioned above the working table plate, wherein an upper pressure head assembly and a lower ejector rod assembly are arranged on the frame; the layering pre-pressing device comprises a pre-pressing base and a second pressure head, the avoidance driving mechanism is connected with the pre-pressing base, the avoidance driving mechanism can enable the second pressure head to move between the press forming die and the upper pressure head assembly, the second driving assembly connected with the second pressure head is mounted on the pre-pressing base, and the second driving assembly can drive the second pressure head to be embedded into a powder metallurgy part forming cavity of the press forming die from top to bottom.
With respect to the related art in the above, the inventors consider that there are the following drawbacks: although the above prior art adopts the layered prepressing device to prepress powder, not only reduces the moving stroke of the pressing head, but also improves the moving speed of the pressing head, and further improves the processing efficiency, the powder poured into the forming die is pressed only on the upper side, and the powder is pressed twice, but the lower side of the powder is not pressed, so that the upper side of a metallurgical part is pressurized, but the lower side is not pressurized, so that the pressure is uneven, the lower side of the metallurgical part is easy to crack, and the using quality of the metallurgical part is affected, and therefore, a powder metallurgical part press forming machine is now needed.
Disclosure of Invention
The invention provides a powder metallurgy part compression molding machine, which solves the problem that only one side can be pressed.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a powder metallurgy spare compacting machine, includes the base and is located the bed die of base upside, its characterized in that, the upside fixedly connected with of base a plurality of stands, a plurality of the common fixedly connected with roof of upper end of stand, the downside of roof is provided with the punching press mechanism with bed die complex, the upside of base is provided with the feed mechanism who removes the inboard of bed die with powder, the downside of base is provided with the upward pressing mechanism that pushes up the inboard powder of bed die, and upward pressing mechanism and punching press mechanism mutually cooperate and simultaneously compress the powder from upper and lower both sides, the inboard of bed die is provided with the liftout mechanism with upward pressing mechanism complex.
Through above-mentioned technical scheme, can make the metallurgical piece go on pressing from top to bottom simultaneously, improve the intensity of suppression to make whole suppression, the integrative completion of unloading, reduce the time of compression moulding, raise the efficiency.
Preferably, the stamping mechanism comprises a hydraulic cylinder fixedly connected with the lower side of the middle of the top plate, the output end of the hydraulic cylinder is fixedly connected with a mounting plate, and the lower side of the mounting plate is fixedly connected with an upper die matched with the lower die.
Preferably, the upward pressing mechanism comprises a fixing frame fixedly connected with the lower side of the base, a transmission frame is rotationally connected to the fixing frame, a first sliding groove is formed in one end of the transmission frame, a first sliding block is slidingly connected to the inner side of the first sliding groove, a second sliding groove is formed in the other end of the transmission frame, a second sliding block is slidingly connected to the inner side of the second sliding groove, a transmission rod is rotationally connected to the upper side of the second sliding block, a connecting rod fixedly connected with one side of the mounting plate is fixedly connected to the upper end of the transmission rod, an ejector rod is rotationally connected to the upper side of the first sliding block and is slidingly connected with the middle of the lower die, a transmission groove is formed in the upper end of the ejector rod, and a push rod fixedly connected with the lower side of the pressing plate is slidingly arranged in the inner side of the transmission groove and used for pressing inner powder of the lower die.
Preferably, the material ejection mechanism comprises a discharge pipe fixedly connected with the inside of the lower die, one end of the discharge pipe is connected with a discharge rod matched with the lower side of the pressing plate in a sealing sliding manner, the other end of the discharge pipe is connected with a material pushing piston in a sealing sliding manner, and the upper end of the material pushing piston is fixedly connected with a connecting plate fixedly connected with one side of the ejector rod.
Preferably, the discharging pipe is of a U-shaped structure, hydraulic oil is arranged in the discharging pipe, and the diameter of one end of the discharging pipe, which is close to the pushing piston, is larger than that of one end, which is far away from the pushing piston.
Preferably, a heating component is arranged on the inner side of the lower die, and a forming groove is formed on the upper side of the lower die.
Preferably, the heating assembly comprises a heating ring arranged inside the lower die and encircling the outer side of the forming groove.
Preferably, the feeding mechanism comprises a bottom plate fixedly connected with the upper side of the base, a cylinder is fixedly connected with one side of the bottom plate close to the lower die, a guide plate flush with the upper surface of the lower die is fixedly connected with one side of the bottom plate, a feeding hopper sliding with the upper side of the guide plate is fixedly connected with the output end of the cylinder, a feeding pipe is arranged on the upper side of the feeding hopper, and a feeding groove penetrating through the lower portion is arranged on the inner side of the feeding hopper.
Preferably, a guide hopper for guiding and collecting the molded parts is arranged on the upper side of the base.
The invention has the beneficial effects that:
1. through transfer line, drive frame and ejector pin, when can making the mould push down, drive the ejector pin and shift up, and then make the clamp plate of the inboard bottom of bed die slide up, just can make the inside metal powder of bed die carry out upper and lower two-sided compression moulding under the effect of clamp plate and last mould for the inside pressure that receives of metallurgical spare is even, improves the quality and the intensity of metallurgical spare, and then improves the life of metallurgical spare.
2. Through push rod, drive groove, push away silo, clamp plate, connecting plate, the pole of unloading, push away material piston, discharge tube, can make after the powder compression moulding, the ejector pin descends, drive connecting plate and push away material piston and descend for the inside hydraulic oil promotion's of discharge tube opposite side, make the pole of unloading of opposite side shift up, just can make the clamp plate shift up, just can make the inside metallurgical part of bed die release bed die, then drive the feeder hopper through the cylinder and remove, make the metallurgical part push away to the guide hopper on, be convenient for collect, make whole suppression, the integrative completion of unloading, reduce compression moulding's time, raise the efficiency.
Drawings
FIG. 1 is a schematic diagram showing a cross-sectional front view of a powder metallurgy part press forming machine according to the present invention;
FIG. 2 is a first overall schematic diagram of a powder metallurgy part press forming machine according to the present invention;
FIG. 3 is a second overall schematic of a powder metallurgy part press forming machine according to the present invention;
FIG. 4 is a third overall schematic of a powder metallurgy part press forming machine according to the present invention;
fig. 5 is an enlarged schematic view at a in fig. 1.
Reference numerals in the drawings: 1. a base; 2. a lower die; 3. a first slider; 4. a first chute; 5. a transmission frame; 6. a fixing frame; 7. a second slider; 8. a second chute; 9. a transmission rod; 10. a guide hopper; 11. a column; 12. a connecting rod; 13. a mounting plate; 14. a hydraulic cylinder; 15. an upper die; 16. a top plate; 17. a feed pipe; 18. a feed hopper; 19. a bottom plate; 20. a cylinder; 21. a guide plate; 22. a push rod; 23. a push rod; 24. a transmission groove; 25. a pushing groove; 26. a pressing plate; 27. a forming groove; 28. a connecting plate; 29. a heating ring; 30. a discharge rod; 31. pushing the material piston; 32. and (5) discharging the material pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1-5, a powder metallurgy part press forming machine comprises a base 1 and a lower die 2 positioned on the upper side of the base 1, wherein a plurality of upright posts 11 are fixedly connected on the upper side of the base 1, a top plate 16 is fixedly connected on the upper ends of the upright posts 11 together, a hydraulic cylinder 14 is fixedly connected on the lower side in the middle of the top plate 16, an output end of the hydraulic cylinder 14 is fixedly connected with a mounting plate 13, an upper die 15 matched with the lower die 2 is fixedly connected on the lower side of the mounting plate 13, a fixing frame 6 fixedly connected on the lower side of the base 1 is rotatably connected with a transmission frame 5, a first sliding groove 4 is formed at one end of the transmission frame 5, a first sliding block 3 is slidingly connected on the inner side of the first sliding groove 4, a second sliding groove 8 is formed at the other end of the transmission frame 5, a second sliding block 7 is slidingly connected on the inner side of the second sliding groove 8, a transmission rod 9 is rotatably connected on the upper side of the second sliding block 7, the upper end of the transmission rod 9 is fixedly connected with a connecting rod 12 fixedly connected with one side of the mounting plate 13, the upper side of the first sliding block 3 is rotationally connected with a push rod 22 which is in sliding connection with the middle of the lower die 2, the upper end of the push rod 22 is provided with a transmission groove 24, the inner side of the transmission groove 24 is provided with a push rod 23 which is fixedly connected with the lower side of a pressing plate 26 in a sliding manner, when the push rod 23 moves upwards through the transmission groove 24, the pressing plate 26 is driven to move upwards, but when the push rod descends, the pressing plate 26 is not driven to descend, the whole metallurgical part is continuously pressed and returned, the time between the pressing and returning processes is reduced, the pressing and forming efficiency of the metallurgical part is improved, the push rod 22 is used for pressing the powder on the inner side of the lower die 2, after the powder is pressed and formed, the push rod 22 descends, the connecting plate 28 and the pushing piston 31 are driven to descend, and the other side of the hydraulic oil in the discharging pipe 32 is driven, the unloading rod 30 at the other side moves upwards, the pressing plate 28 can be pushed to move upwards on the inner side of the forming groove 27, the metallurgical piece in the lower die 2 can be pushed out of the lower die 2, then the air cylinder 20 drives the feeding hopper 18 to move, the metallurgical piece can be pushed onto the guide hopper 10 from the lower die 2, collection is facilitated, the whole pressing and unloading are integrally completed, the time of pressing forming is reduced, and the efficiency is improved.
Referring to fig. 1, a bottom plate 19 is fixedly connected to the upper side of a base 1, an air cylinder 20 is fixedly connected to one side of the bottom plate 19 close to a lower die 2, a guide plate 21 flush with the upper surface of the lower die 2 is fixedly connected to one side of the bottom plate 19, a feeding hopper 18 sliding on the upper side of the guide plate 21 is fixedly connected to the output end of the air cylinder 20, a feeding pipe 17 is arranged on the upper side of the feeding hopper 18, a feeding groove penetrating through the lower portion is formed in the inner side of the feeding hopper 18, powder entering the feeding hopper 18 each time can be kept consistent through the feeding groove, and feeding efficiency is improved.
Referring to fig. 1 and 5, the inside fixed connection discharge tube 32 of bed die 2, the sealed sliding connection of one end of discharge tube 32 has the discharge rod 30 with clamp plate 26 downside complex, the sealed sliding connection of the other end of discharge tube 32 has pushing piston 31, pushing piston 31's upper end fixedly connected with and ejector pin 22 one side fixed connection's connecting plate 28, discharge tube 32 is "U" type structure, discharge tube 32's inside is provided with hydraulic oil, discharge tube 32 is close to pushing piston 31's one end diameter is greater than the one end diameter that keeps away from pushing piston 31, can make pushing piston 31 descending displacement be less than the displacement that discharge rod 30 risen, be convenient for make the metallurgical part release bed die 2 fast, the inboard setting of bed die 2 is in bed die 2 inside and encircle the heating ring 29 in the shaping groove 27 outside, can make the inside powder of bed die 2 heat through heating ring 29, make bonding between the powder more inseparabler, improve the intensity of the press shaping quality, shaping groove 27 has been seted up to the upside of bed die 2, the upside of base 1 is provided with guide hopper 10, can make the metallurgical part collect the shaping that can make the collection of being convenient for the press shaping.
Working principle: firstly, a certain volume of powder is added into the feed hopper 18 through the feed pipe 17, then the air cylinder 20 drives the feed hopper 18 to move, so that the powder in the feed hopper 18 is poured into a forming groove 27 on the lower die 2, then the powder is retracted, then the hydraulic cylinder 14 drives the mounting plate 13 to descend together with the upper die 15, simultaneously drives a connecting rod 12 on one side of the mounting plate 13 to descend together with a transmission rod 9, pushes one end of the transmission frame 5 to rotate around the fixed frame 6, so that the other end of the transmission frame 5 is tilted upwards, drives the top plate 22 to move upwards together with the push rod 23, and the push rod 23 drives the pressing plate 26 to press the inner side of the forming groove 27, so that metal powder can be pressed at the upper side and the lower side simultaneously, the stress is more uniform, the strength of a metallurgical piece is improved, and in the pressing process, through the heating ring 29, the metal powder can be heated, the strength of compression molding is improved, then after compression molding, the hydraulic cylinder 14 drives the connecting rod 12 and the transmission rod 9 to rise, so that the ejector rod 22 descends, the connecting plate 28 descends together, the pushing piston 31 slides on the inner side of the discharge pipe 32, hydraulic oil in the discharge pipe 32 is compressed to the other side of the discharge pipe 32, the discharging rod 30 is pushed to rise, the pressing plate 26 is pushed to rise, a metallurgical piece after compression molding is pushed out of the lower die 2, then the cylinder 20 drives the feeding hopper 18 to push the metallurgical piece on the upper side of the lower die 2 onto the guide hopper 10, so that the collection is facilitated, uniform collection is facilitated for personnel, the whole compression and material returning are continuously carried out, and the molding efficiency of the powder metallurgical piece is improved.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (5)
1. The utility model provides a powder metallurgy spare compacting machine, includes base (1) and lower mould (2) that are located the base (1) upside, its characterized in that, the upside fixedly connected with of base (1) a plurality of stands (11), a plurality of the upper ends of stand (11) are fixedly connected with roof (16) jointly, the downside of roof (16) is provided with the punching press mechanism with lower mould (2) complex, the upside of base (1) is provided with the feed mechanism that moves the powder to the inboard of lower mould (2), the downside of base (1) is provided with the upward pressing mechanism that pushes up the inboard powder of lower mould (2), upward pressing mechanism and punching press mechanism mutually cooperate with the powder from upper and lower both sides simultaneously suppresses, the inboard of lower mould (2) is provided with the ejecting material mechanism of metallurgical spare after the upward pressing mechanism suppresses the shaping.
The stamping mechanism comprises a hydraulic cylinder (14) fixedly connected with the lower side of the middle of a top plate (16), the output end of the hydraulic cylinder (14) is fixedly connected with a mounting plate (13), and the lower side of the mounting plate (13) is fixedly connected with an upper die (15) matched with the lower die (2);
the pressing mechanism comprises a fixing frame (6) fixedly connected with the lower side of a base (1), a transmission frame (5) is rotationally connected to the fixing frame (6), a first sliding groove (4) is formed in one end of the transmission frame (5), a first sliding block (3) is slidably connected to the inner side of the first sliding groove (4), a second sliding groove (8) is formed in the other end of the transmission frame (5), a second sliding block (7) is slidably connected to the inner side of the second sliding groove (8), a transmission rod (9) is rotationally connected to the upper side of the second sliding block (7), a connecting rod (12) fixedly connected with one side of a mounting plate (13) is rotationally connected to the upper side of the transmission rod (9), a push rod (22) is rotationally connected to the middle of the lower die (2), a transmission groove (24) is formed in the upper end of the push rod (22), and a push rod (23) fixedly connected with the lower side of a pressing plate (26) is slidably arranged on the inner side of the transmission groove (24) and used for pressing powder on the inner side of the lower die (2).
The material ejection mechanism comprises a material discharge pipe (32) fixedly connected with the inside of the lower die (2), one end of the material discharge pipe (32) is in sealing sliding connection with a material discharge rod (30) matched with the lower side of the pressing plate (26), the other end of the material discharge pipe (32) is in sealing sliding connection with a material pushing piston (31), and the upper end of the material pushing piston (31) is fixedly connected with a connecting plate (28) fixedly connected with one side of the ejector rod (22);
the discharging pipe (32) is of a U-shaped structure, hydraulic oil is arranged in the discharging pipe (32), and the diameter of one end of the discharging pipe (32) close to the pushing piston (31) is larger than that of one end far away from the pushing piston (31).
2. A powder metallurgy part press forming machine according to claim 1, characterized in that a heating component is arranged on the inner side of the lower die (2), and a forming groove (27) is formed on the upper side of the lower die (2).
3. A powder metallurgical part press forming machine according to claim 2, characterized in that the heating assembly comprises a heating ring (29) arranged inside the lower die (2) and surrounding the outside of the forming groove (27).
4. A powder metallurgy part compacting forming machine according to any one of claims 1-3, characterized in that the feeding mechanism comprises a bottom plate (19) fixedly connected with the upper side of the base (1), a cylinder (20) is fixedly connected with one side of the bottom plate (19) close to the lower die (2), a guide plate (21) flush with the upper surface of the lower die (2) is fixedly connected with one side of the bottom plate (19), an output end of the cylinder (20) is fixedly connected with a feeding hopper (18) sliding with the upper side of the guide plate (21), a feeding pipe (17) is arranged on the upper side of the feeding hopper (18), and a feeding groove penetrating through the lower part is arranged on the inner side of the feeding hopper (18).
5. A powder metallurgical part press forming machine according to claim 4, characterized in that the upper side of the base (1) is provided with a guide hopper (10) for guiding the formed parts to collection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310993499.XA CN116765390B (en) | 2023-08-09 | 2023-08-09 | Powder metallurgy part press forming machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310993499.XA CN116765390B (en) | 2023-08-09 | 2023-08-09 | Powder metallurgy part press forming machine |
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| Publication Number | Publication Date |
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| CN116765390A CN116765390A (en) | 2023-09-19 |
| CN116765390B true CN116765390B (en) | 2023-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310993499.XA Active CN116765390B (en) | 2023-08-09 | 2023-08-09 | Powder metallurgy part press forming machine |
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| CN117358922A (en) * | 2023-11-24 | 2024-01-09 | 江苏程奥金属科技有限公司 | Nut compression molding device utilizing powder metallurgy |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4379684A (en) * | 1980-06-13 | 1983-04-12 | Yoshizuka Seiki Co., Ltd. | Press for powder metallurgy |
| CN211088123U (en) * | 2019-12-30 | 2020-07-24 | 浙江金豪汽车配件有限公司 | Combined switch |
| CN215879889U (en) * | 2021-08-23 | 2022-02-22 | 苏州中鼎冶金有限公司 | Novel powder metallurgy gear compacting die |
| CN114273654A (en) * | 2022-01-26 | 2022-04-05 | 台州市圣西亚金刚石设备有限公司 | Powder metallurgy part press forming machine |
| CN219025924U (en) * | 2022-07-29 | 2023-05-16 | 新沂市盛翔节能保温工程有限公司 | Powder metallurgy forming die |
-
2023
- 2023-08-09 CN CN202310993499.XA patent/CN116765390B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4379684A (en) * | 1980-06-13 | 1983-04-12 | Yoshizuka Seiki Co., Ltd. | Press for powder metallurgy |
| CN211088123U (en) * | 2019-12-30 | 2020-07-24 | 浙江金豪汽车配件有限公司 | Combined switch |
| CN215879889U (en) * | 2021-08-23 | 2022-02-22 | 苏州中鼎冶金有限公司 | Novel powder metallurgy gear compacting die |
| CN114273654A (en) * | 2022-01-26 | 2022-04-05 | 台州市圣西亚金刚石设备有限公司 | Powder metallurgy part press forming machine |
| CN219025924U (en) * | 2022-07-29 | 2023-05-16 | 新沂市盛翔节能保温工程有限公司 | Powder metallurgy forming die |
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| CN116765390A (en) | 2023-09-19 |
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