CN116550977B - Powder metallurgy rotary forming die for belt pulley of engine - Google Patents
Powder metallurgy rotary forming die for belt pulley of engine Download PDFInfo
- Publication number
- CN116550977B CN116550977B CN202310445792.2A CN202310445792A CN116550977B CN 116550977 B CN116550977 B CN 116550977B CN 202310445792 A CN202310445792 A CN 202310445792A CN 116550977 B CN116550977 B CN 116550977B
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- inner cavity
- fixedly connected
- rotary
- butt joint
- traction
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- 238000004663 powder metallurgy Methods 0.000 title claims abstract description 16
- 239000000843 powder Substances 0.000 claims abstract description 63
- 239000002184 metal Substances 0.000 claims abstract description 51
- 239000000463 material Substances 0.000 claims abstract description 49
- 238000005520 cutting process Methods 0.000 claims abstract description 18
- 210000001503 joint Anatomy 0.000 claims description 67
- 238000007493 shaping process Methods 0.000 claims description 54
- 238000003825 pressing Methods 0.000 claims description 43
- 238000003860 storage Methods 0.000 claims description 28
- 230000000149 penetrating effect Effects 0.000 claims description 21
- 244000309464 bull Species 0.000 claims description 15
- 238000007599 discharging Methods 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 2
- 238000000465 moulding Methods 0.000 abstract description 17
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 14
- 235000017491 Bambusa tulda Nutrition 0.000 description 14
- 241001330002 Bambuseae Species 0.000 description 14
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 14
- 239000011425 bamboo Substances 0.000 description 14
- 230000009471 action Effects 0.000 description 10
- 238000007664 blowing Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 238000003032 molecular docking Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 230000005484 gravity Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000007514 turning 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
-
- 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
- B22F3/003—Apparatus, e.g. furnaces
-
- 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
- B22F3/004—Filling molds with powder
-
- 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
- B22F3/005—Loading or unloading powder metal objects
-
- 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
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention belongs to the technical field of powder metallurgy, in particular to a rotary forming die for powder metallurgy of an engine belt pulley, which comprises a processing table and a rotary cutting device, wherein a control bottom plate is fixedly connected to the bottom of an inner cavity of the processing table, a traction push rod is connected to the axial center of the inner cavity of the control bottom plate in a sliding manner, a closed sliding disc is fixedly connected to the top end of the traction push rod, and a switching rotating rod is connected to the axial center of the inner cavity of the rotary cutting device in a rotating manner. When the material conveying component is used for conveying materials to the inside of the molding groove, redundant metal powder is easy to spread on the upper surface of the processing table, the metal powder near the through hole of the die plate can be adsorbed on the outer surface of the just pressed molding module, and then the outer surface of the molded belt pulley is very rough.
Description
Technical Field
The invention belongs to the technical field of powder metallurgy, and particularly relates to a powder metallurgy rotary forming die for an engine belt pulley.
Background
At present, powder metallurgy refers to a process technology for manufacturing metal materials, composite materials and various products by taking metal powder as a raw material, pressing the metal powder into a cake shape through a forming machine and then sintering the cake shape.
In the continuous processing process, the equipment for adding powder to the inner cavity of the die is easy to scatter redundant metal powder on the upper surface of the die plate, so that on one hand, the problem of raw material waste can be caused, and on the other hand, the metal powder near the through hole of the die plate can be adsorbed on the outer surface of the just-pressed forming die block, and further the outer surface of the formed belt pulley is very rough, and long-time polishing work is required, so that improvement is required.
Disclosure of Invention
Aiming at the defects of the prior art, the invention solves the technical problems by adopting the following technical scheme: the utility model provides an engine belt pulley powder metallurgy rotary forming die, includes processing platform and commentaries on classics and cuts the device, the bottom fixedly connected with control bottom plate of processing platform inner chamber, control bottom plate inner chamber's axle center department sliding connection has traction push rod, traction push rod's top fixedly connected with seals the slide plate, commentaries on classics is cut the axle center department rotation of device inner chamber and is connected with the switching bull stick, including the material conveying part, this material conveying part can add metal powder to the shaping mouth at processing platform inner chamber middle part, the bottom sliding connection of material conveying part has the butt joint drain pan, the surface of butt joint drain pan and the one side fixedly connected that changes cutting device surface kept away from the processing platform, the axle center department at material conveying part inner chamber top is through traction bull stick and one side fixedly connected that switches bull stick surface top; before the device is used, the inner cavity of the storage shell is filled with metal powder required by processing through the conveying pipes on the two sides, the conveying part is in butt joint with the butt joint bottom shell below, and the shaping device on the other side is positioned right above the shaping port at the axis of the processing table at the moment, so that the preparation work is completed.
Preferably, the shaping device can be matched with a processing table, metal powder put into an inner cavity of the processing table is compressed into the shape of an engine belt pulley, the shaping device is provided with a threaded rotating rod, the bottom of the surface of the threaded rotating rod is fixedly connected with a butt joint pressing shell, the axle center of the top of the inner cavity of the butt joint pressing shell is fixedly connected with an axle center sleeve, the middle of the inner cavity of the axle center sleeve is rotationally connected with an air extraction rotating fan through a rotor motor, the bottom of the inner cavity of the butt joint pressing shell is fixedly connected with a stacked magnetic plate, the top of the surface of the stacked magnetic plate is fixedly connected with a separation plate, and the top of the inner cavity of the axle center sleeve is fixedly connected with a vertical through pipe through a through hole; when the shaping device works, the threaded rotating rod rotates downwards along the vertical sleeve screw under the action of the upper rotating motor, at the moment, the bottom of the butt-joint pressing shell is gradually inserted into the penetrating shaping opening, then the bottom of the butt-joint pressing shell is used for compacting metal powder penetrating through the inner cavity of the shaping opening, the top end of the traction pushing rod is gradually inserted into the bottom of the inner cavity of the butt-joint pressing shell, the butt-joint pressing shell finally cannot slide downwards, at the moment, the heating device of the inner cavity of the processing table starts to work, and the compacted metal powder is recast to form a blank mold of the belt pulley after hot processing. The device dock the shell of pressing when absorbing metal powder, the powder is easy to be scattered at the inner chamber backward flow of docking the shell of pressing, and then leads to the air inlet of perpendicular siphunculus to be blocked easily, and the piece of backward flow probably can fly out for the second time simultaneously, causes the problem that the cleaning effect is bad, the device has set up at the bottom of docking the shell of pressing inner chamber and has piled up the magnetic plate, makes metal powder after getting into the inner chamber of docking the shell of pressing, can pile up magnetic plate's magnetic force effect and self gravity's effect in the below under, adsorb at the upper surface of division board, can not get into the inside that the gas-pumping changes the fan through perpendicular siphunculus and cause the jam problem.
Preferably, the discharging device is capable of removing the engine pulley after the inner cavity of the processing table is processed. The axle center department of processing platform inner chamber has seted up and has run through moulding mouthful, the inner chamber of processing platform is through running through moulding mouthful fixedly connected with heating device, the top rotation on screw thread bull stick surface is connected with the guide rotary drum, and the top of guide rotary drum and switch bull stick surface and keep away from the one side fixed connection of material conveying part. The rotary rod is controlled to be switched through the rotary cutting device to rotate for half a period, at the moment, the shaping device is switched with the material conveying component, the material conveying component adds metal powder in the inner cavity into the inner part of the penetrating shaping opening, then the rotary rod is switched to rotate for half a period again, the shaping device is opposite to the penetrating shaping opening below, shaping processing is ready to be carried out, at the moment, the control bottom plate below the shaping device already pushes the traction push rod upwards, at the moment, the middle part of the inner cavity of the penetrating shaping opening is blocked by the sealing slide disc, the side opening of the sealing slide disc is blocked by the penetrating shaping opening, and the area on the upper part of the inner cavity of the penetrating shaping opening is filled with powder.
Preferably, the middle part of the inner cavity of the butt joint pressing shell is uniformly provided with a through hole, the bottom of the surface of the butt joint pressing shell is in sliding connection with the inner cavity of the processing table through a through molding hole, the top end of the traction push rod is inserted into the axle center of the bottom of the inner cavity of the butt joint pressing shell through an adaptive slot, one side of the inner cavity of the closed sliding disc, which is far away from the traction push rod, is uniformly provided with a through hole, and the bottom of the inner cavity of the processing table is fixedly connected with a blowing device through the through molding hole. In the process of shaping the belt pulley, the rotor in the inner cavity of the butt-joint pressing shell controls the air suction rotating fan to rotate, so that air is sucked from the side opening of the butt-joint pressing shell through the vertical through pipe, metal powder near the penetrating shaping opening is absorbed into the butt-joint pressing shell, and after entering the inner cavity of the butt-joint pressing shell, the metal powder is adsorbed on the upper surface of the isolation plate under the action of magnetic force of the magnetic plates stacked below and the action of gravity of the metal powder. When the device is in metal powder metallurgy technology, the runner is shaped through the plastic groove of the processing table, and when the material conveying component is used for conveying materials in the plastic groove, redundant metal powder is easy to scatter on the upper surface of the processing table, so that on the one hand, the problem of raw material waste can be caused, on the other hand, the metal powder near the through hole of the die plate can be adsorbed on the outer surface of the just pressed forming die block, and then the outer surface of the formed belt pulley is very rough.
Preferably, the material conveying component comprises a material storage shell, a pushing rotary rod is rotationally connected to the axis of the top of the inner cavity of the material storage shell, a butt-joint sliding cylinder is slidably connected to the middle of the inner cavity of the material storage shell, discharge holes are uniformly formed in the axis of the bottom of the inner cavity of the butt-joint sliding cylinder, and the bottom of the surface of the butt-joint sliding cylinder is fixedly connected with the bottom of the inner cavity of the material storage shell through a spring buffer rod. When discharging, the propelling rod needs to rotate, the propelling rod can transport the metal powder in the inner cavity downwards through the self thread groove when rotating, the metal powder is discharged to the inside of the penetrating molding opening through the discharge opening, the butt joint sliding cylinder can be inserted into the inside of the penetrating molding opening at the moment because of the filled powder, then the bent spring buffer rod pushes the butt joint sliding cylinder upwards to the inside of the storage shell after the propelling rod stops rotating, and the rotating propelling rod stops blocking the discharge opening.
Preferably, the bottom of the butt joint slide cylinder is in sliding connection with the top of the inner cavity of the processing table through a penetrating molding opening, the top of the pushing rotary rod is in rotary connection with one end of the switching rotary rod far away from the processing table through a rotary motor, the bottom of the pushing rotary rod is in rotary connection with the axis of the bottom of the inner cavity of the butt joint slide cylinder, and one side of the surface of the spring buffer rod far away from the butt joint slide cylinder is fixedly connected with the bottom of the inner cavity of the storage shell. Because the inner rotor control cam carousel rotates, grafting smooth section of thick bamboo whole can take place the displacement in vertical face, and then take place to rock under the elasticity effect of spring even section of thick bamboo, the slide rail that connects the guide arm can also pass through the side at this moment slides along the bottom of grafting smooth section of thick bamboo inner chamber, and then make the top of connecting the guide arm change from the state of contacting with the inner rotor, become the state of poor contact with the inner rotor bottom guide head, thereby make the inner rotor stop work, grafting smooth section of thick bamboo vibration at vertical face this moment, after grafting smooth section of thick bamboo is static, connect the guide arm again with the complete butt joint of inner rotor bottom guide head, the inner rotor can restart and rotate.
Preferably, the butt joint drain pan includes grafting slide tube, the through hole has evenly been seted up to one side that the axle center department was kept away from to grafting slide tube inner chamber, the equal fixedly connected with of both sides of grafting slide tube surface bottom is connected with the arm, the top fixedly connected with spring of connecting the arm links the section of thick bamboo, the axle center department rotation at butt joint drain pan inner chamber top is connected with the cam carousel, the top fixedly connected with inner rotor on cam carousel surface, the bottom of inner rotor surface inner chamber is through grafting mouth sliding connection has the connection guide arm, and the middle part fixedly connected with vibration slide plate on connection guide arm surface, the bottom sliding connection of vibration slide plate has built-in power. The surface of inner rotor and the middle part fixed connection of grafting smooth section of thick bamboo inner wall, the top of grafting smooth section of thick bamboo extends to the inside of discharge gate through the through-hole, the bottom of inner rotor surface and the top fixed connection of grafting smooth section of thick bamboo inner wall, the top of vibration slide is through the bottom sliding connection of connecting guide arm with the inner rotor inner chamber, and the bottom of connecting the guide arm passes through connecting wire and the inner chamber fixed connection of built-in power. When the storage shell rotates to the position of butting with the butting bottom shell, the inner rotor controls the cam turntable to rotate until the top of the cam turntable is in butt joint with the top groove of the inner cavity of the butting bottom shell, at the moment, the top end of the inserted sliding cylinder ascends under the traction action of the spring connecting cylinder, penetrates through the top of the inner cavity of the butting bottom shell, is inserted into the lower part of the inner cavity of the discharging hole, guides powder clamped at the discharging hole, and the powder flows into the bottom of the butting bottom shell through the sliding groove of the inserted sliding cylinder to finish the collection work. When metal powder piles up the inner chamber at the storage shell, only rely on the gravity of metal powder self, the discharge gate with the bottom is plugged up easily, can pass through the mode to impel the rotatory pressurization of bull stick this moment, guide metal powder and pass through the discharge gate of storage shell inner chamber bottom, avoid appearing the problem that the storage shell discharge gate is blockked up, and the butt joint drain pan of below can lift the butt joint slide on the one hand, reduce the fatigue of spring buffer rod, on the other hand, can be through the mode of vertical vibrations with the metal dust of jam in the discharge gate bottom guide to the inside of butt joint drain pan, guarantee that the discharge gate can not pile up the caking.
Preferably, the discharging equipment comprises a deflection motor, a traction rotary drum is rotationally connected to the surface of an output shaft of the deflection motor, a traction baffle belt is slidingly connected to one side, far away from a material conveying part, of an inner cavity of the traction rotary drum through a cutting groove, a limiting cylinder is fixedly connected to the top of the surface of the deflection motor, a vertical rotating rod is slidingly connected to the top of the inner cavity of the limiting cylinder, and side rotating plates are rotationally connected to two sides of the surface of the vertical rotating rod. After the rotating wheel is machined, the shaping device is pulled out of the inner cavity of the machining table, then a control bottom plate below the shaping device is started, the closed sliding plate is pulled downwards, at the moment, a ventilation opening at the side of the closed sliding plate is opened, then the blowing device blows air upwards in a steering way, the rotating wheel leaves the inner cavity of the machining table, the deflection motors at the two sides are started, the deflection motors control the traction rotating drums to rotate, at the moment, the traction rotating drums at the two sides rotate the traction baffle to one side close to the rotating wheel, the traction baffle pushes the rotating wheel out, at the moment, the traction baffle can be subjected to the reaction force of the rotating wheel, then the vertical rotating rod inside the traction baffle is pulled, and then the traction rotating drum is rotated to the initial position by the deflection motors, so that the traction baffle protects the outside.
Preferably, the number of the deflection motors is two, the surface of the deflection motor is fixedly connected with one end of the inner cavity of the processing table, the top of the traction rotary drum extends to the outside of the processing table, both ends of the traction baffle belt extend to the inside of the traction rotary drum through cutting grooves, both ends of the traction baffle belt are fixedly connected with the surface of the vertical rotary rod, and the middle part of the surface of the traction baffle belt is mutually extruded with the surface of the engine belt pulley. The device takes out the runner that will process through discharging equipment and blast apparatus from the inner chamber of processing platform, then pulls the fender area and can positively block the shaping mouth of processing platform, plays certain guard action, and pulls the fender area when promoting the runner to carry out the displacement, because receive the reaction force influence, can apply the pulling force effect to vertical bull stick, and then judge whether the runner quality after the processing is qualified.
Preferably, the blast apparatus includes a slot section of thick bamboo, the bottom fixedly connected with switching siphunculus of slot section of thick bamboo inner chamber, the top of slot section of thick bamboo inner chamber is through vent fixedly connected with blast ring, the bottom fixedly connected with of blast ring inner chamber is admitted air the siphunculus, the bottom of admitting air the siphunculus is through running through the middle part that the groove extends to slot section of thick bamboo inner chamber, the bottom and the inner chamber fixed connection of control bottom plate of switching siphunculus, the axle center department and the surface sliding connection of traction push rod of slot section of thick bamboo inner chamber. When the device is used, the through hole of the closed slide plate is blocked by the plastic groove of the processing table, so that powder cannot fall into the through hole above the slot cylinder when the powder is processed, and the push rod is pulled to slide downwards in the process of sliding downwards along the axis of the inner cavity of the slot cylinder, then the bottom end of the air inlet through pipe is changed into an open state from a blocked state, and at the moment, the air blowing ring can suck air through the air inlet through pipe and blow out the rotating wheel from bottom to top along the plastic groove.
The beneficial effects of the invention are as follows:
1. when the device is in metal powder metallurgy technology, the runner is shaped through the plastic groove of the processing table, and when the material conveying component is used for conveying materials in the plastic groove, redundant metal powder is easy to scatter on the upper surface of the processing table, so that on the one hand, the problem of raw material waste can be caused, on the other hand, the metal powder near the through hole of the die plate can be adsorbed on the outer surface of the just pressed forming die block, and then the outer surface of the formed belt pulley is very rough.
2. The device dock the shell of pressing when absorbing metal powder, the powder is easy to be scattered at the inner chamber backward flow of docking the shell of pressing, and then leads to the air inlet of perpendicular siphunculus to be blocked easily, and the piece of backward flow probably can fly out for the second time simultaneously, causes the problem that the cleaning effect is bad, the device has set up at the bottom of docking the shell of pressing inner chamber and has piled up the magnetic plate, makes metal powder after getting into the inner chamber of docking the shell of pressing, can pile up magnetic plate's magnetic force effect and self gravity's effect in the below under, adsorb at the upper surface of division board, can not get into the inside that the gas-pumping changes the fan through perpendicular siphunculus and cause the jam problem.
3. When metal powder piles up the inner chamber at the storage shell, only rely on the gravity of metal powder self, the discharge gate with the bottom is plugged up easily, can pass through the mode to impel the rotatory pressurization of bull stick this moment, guide metal powder and pass through the discharge gate of storage shell inner chamber bottom, avoid appearing the problem that the storage shell discharge gate is blockked up, and the butt joint drain pan of below can lift the butt joint slide on the one hand, reduce the fatigue of spring buffer rod, on the other hand, can be through the mode of vertical vibrations with the metal dust of jam in the discharge gate bottom guide to the inside of butt joint drain pan, guarantee that the discharge gate can not pile up the caking.
4. The device takes out the runner that will process through discharging equipment and blast apparatus from the inner chamber of processing platform, then pulls the fender area and can positively block the shaping mouth of processing platform, plays certain guard action, and pulls the fender area when promoting the runner to carry out the displacement, because receive the reaction force influence, can apply the pulling force effect to vertical bull stick, and then judge whether the runner quality after the processing is qualified.
5. The air blast device of below makes the runner slide out from the inner chamber of processing platform through the mode of pressurization, uses the wind pressure on the one hand can cool off the runner after the heating fast, on the other hand can blow out the metal powder of remaining in moulding mouth inner chamber, guarantees moulding mouth's clean and tidy degree, and the air blast device of device can with traction push rod and seal the slide shape cooperation relation, avoids appearing the powder entering air inlet and the position of induction port of top, causes the problem that the blast ring blockked up the damage.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a rear view of the present invention;
fig. 4 is a cross-sectional view of the shaping device of the present invention;
FIG. 5 is a cross-sectional view of a feed block of the present invention;
fig. 6 is a cross-sectional view of the docking pan of the present invention;
FIG. 7 is a cross-sectional view of the discharge apparatus of the present invention;
fig. 8 is a schematic view of the structure of the blower device of the present invention.
In the figure: 1. a rotary cutting device; 11. a switching rotating rod; 2. a processing table; 21. a control base plate; 22. traction push rod; 23. a closed slide plate; 3. a material conveying component; 31. a storage shell; 32. pushing the rotating rod; 33. a butt joint sliding cylinder; 34. a spring buffer rod; 35. a discharge port; 36. a material conveying pipe; 4. shaping device; 41. a threaded rotating rod; 42. abutting the pressing shell; 43. an air pumping rotary fan; 44. a vertical through pipe; 45. a partition plate; 46. stacking magnetic plates; 6. butting the bottom shell; 61. a splicing sliding cylinder; 62. a cam turntable; 63. an inner rotor; 64. a spring connecting cylinder; 65. vibrating the slide plate; 66. a built-in power supply; 5. a discharging device; 51. a deflection motor; 52. pulling the drum; 53. a vertical turning rod; 54. a side position rotating plate; 55. traction baffle belt; 7. a blower device; 71. a slot cylinder; 72. a transfer pipe; 73. a blast ring; 74. an air inlet through pipe.
Detailed Description
The invention will be described in further detail with reference to the drawings and the detailed description. The embodiments of the invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
In embodiment 1, referring to fig. 1 to 5, the present invention provides a technical solution: the utility model provides an engine belt pulley powder metallurgy rotary forming die, including processing platform 2 and commentaries on classics cutting device 1, the bottom fixedly connected with control bottom plate 21 of processing platform 2 inner chamber, control bottom plate 21 inner chamber's axle center department sliding connection has traction push rod 22, traction push rod 22's top fixedly connected with seals slide 23, commentaries on classics cutting device 1 inner chamber's axle center department rotation is connected with and switches over bull stick 11, including material conveying part 3, this material conveying part 3 can add metal powder to the shaping mouth in processing platform 2 inner chamber middle part, material conveying part 3's bottom sliding connection has butt joint drain pan 6, butt joint drain pan 6's surface and commentaries on classics cutting device 1 surface one side fixedly connected far away from processing platform 2, material conveying part 3 inner chamber top axle center department passes through traction bull stick and switches over one side fixedly connected on bull stick 11 surface top;
the shaping device 4 can be matched with the processing table 2, metal powder put into the inner cavity of the processing table 2 is compressed into the shape of an engine belt pulley, the shaping device 4 is provided with a threaded rotating rod 41, the bottom of the surface of the threaded rotating rod 41 is fixedly connected with a butt joint pressing shell 42, the axle center of the top of the inner cavity of the butt joint pressing shell 42 is fixedly connected with an axle center sleeve, the middle part of the inner cavity of the axle center sleeve is rotationally connected with an air extraction rotating fan 43 through a rotor motor, the bottom of the inner cavity of the butt joint pressing shell 42 is fixedly connected with a stacking magnetic plate 46, the top of the surface of the stacking magnetic plate 46 is fixedly connected with a separation plate 45, and the top of the inner cavity of the axle center sleeve is fixedly connected with a vertical through pipe 44 through a through hole;
and the discharging device 5 is used for removing the engine belt pulley processed by the inner cavity of the processing table 2.
The axle center department of processing platform 2 inner chamber has offered and has run through moulding mouthful, and the inner chamber of processing platform 2 is through running through moulding mouthful fixedly connected with heating device, and the top rotation on screw thread bull stick 41 surface is connected with the guide rotary drum, and the top of guide rotary drum and switch bull stick 11 surface are kept away from one side fixed connection of material conveying part 3.
The middle part of the inner cavity of the butt joint pressing shell 42 is uniformly provided with a through hole, the bottom of the surface of the butt joint pressing shell 42 is in sliding connection with the inner cavity of the processing table 2 through the through molding hole, the top end of the traction push rod 22 is inserted into the axle center of the bottom of the inner cavity of the butt joint pressing shell 42 through an adaptive slot, one side of the inner cavity of the closed sliding disc 23, which is far away from the traction push rod 22, is uniformly provided with a through hole, and the bottom of the inner cavity of the processing table 2 is fixedly connected with the air blowing device 7 through the through molding hole.
The material conveying component 3 comprises a material storage shell 31, a pushing rotary rod 32 is rotatably connected to the axis of the top of the inner cavity of the material storage shell 31, a butt-joint sliding cylinder 33 is slidably connected to the middle of the inner cavity of the material storage shell 31, a material outlet 35 is uniformly formed in the axis of the bottom of the inner cavity of the butt-joint sliding cylinder 33, and the bottom of the surface of the butt-joint sliding cylinder 33 is fixedly connected with the bottom of the inner cavity of the material storage shell 31 through a spring buffer rod 34.
The bottom of the butt joint slide tube 33 is in sliding connection with the top of the inner cavity of the processing table 2 through a penetrating shaping opening, the top end of the pushing rotary rod 32 is in rotary connection with one end of the switching rotary rod 11 far away from the processing table 2 through a rotary motor, the bottom end of the pushing rotary rod 32 is in rotary connection with the axis of the bottom of the inner cavity of the butt joint slide tube 33, and one side of the surface of the spring buffer rod 34 far away from the butt joint slide tube 33 is fixedly connected with the bottom of the inner cavity of the storage shell 31.
Before the device is used, the inner cavity of the storage shell 31 is filled with metal powder required by processing through the conveying pipes 36 on two sides, the conveying part 3 at the moment is in butt joint with the butt joint bottom shell 6 below, and the shaping device 4 on the other side is positioned right above the shaping port at the axis of the processing table 2 at the moment, so that the preparation work is completed.
Firstly, the switching rotating rod 11 is controlled to rotate for half a circle through the rotary cutting device 1, at the moment, the shaping device 4 is switched with the material conveying component 3, the material conveying component 3 adds metal powder in an inner cavity into the inner part of the penetrating shaping opening, then the rotating rod 11 is switched to rotate for half a circle, the shaping device 4 is opposite to the penetrating shaping opening below, shaping processing is ready to be carried out, at the moment, the control bottom plate 21 below the shaping device already pushes the traction push rod 22 upwards, at the moment, the middle part of the inner cavity of the penetrating shaping opening is blocked by the sealing slide disc 23, the side opening of the sealing slide disc 23 is blocked by the penetrating shaping opening, and the upper part of the inner cavity of the penetrating shaping opening is filled with powder.
When the shaping device 4 works, the screw thread rotating rod 41 rotates downwards along the vertical sleeve screw under the action of the upper rotating motor, at the moment, the bottom of the butt joint pressing shell 42 is gradually inserted into the penetrating shaping opening, then the bottom of the butt joint pressing shell 42 compacts metal powder penetrating through the inner cavity of the shaping opening, the top end of the traction push rod 22 is gradually inserted into the bottom of the inner cavity of the butt joint pressing shell 42, finally the butt joint pressing shell 42 cannot slide downwards, at the moment, the heating device in the inner cavity of the processing table 2 starts to work, and the compacted metal powder is recast to form a blank mold of the belt pulley after hot processing.
In the process of shaping the belt pulley, the rotor in the inner cavity of the butt-joint pressure shell 42 controls the air suction rotating fan 43 to rotate, so that air is sucked from the side opening of the butt-joint pressure shell 42 through the vertical through pipe 44, and then metal powder penetrating through the vicinity of the shaping opening is sucked into the butt-joint pressure shell 42, and after entering the inner cavity of the butt-joint pressure shell 42, the metal powder is sucked onto the upper surface of the isolation plate 45 under the action of the magnetic force of the stacked magnetic plate 46 below and the action of the gravity of the metal powder, and the metal powder cannot enter the air suction rotating fan 43 through the vertical through pipe 44 to cause a blocking problem.
When the material discharging operation is carried out, the pushing rotary rod 32 is required to rotate, when the pushing rotary rod 32 rotates, metal powder in an inner cavity is transported downwards through a thread groove of the pushing rotary rod 32, then the metal powder is discharged into the through molding opening through the discharge opening 35, the butt joint sliding cylinder 33 is inserted into the through molding opening because of filled powder, then the bent spring buffer rod 34 pushes the butt joint sliding cylinder 33 upwards to the inside of the material storage shell 31 after the pushing rotary rod 32 stops rotating, and the rotating pushing rotary rod 32 stops blocking the discharge opening 35.
In embodiment 2, referring to fig. 1 to 8, the present invention provides a technical solution: on the basis of the first embodiment, the docking bottom shell 6 comprises a plugging sliding cylinder 61, a through hole is uniformly formed in one side, far away from the axis, of the inner cavity of the plugging sliding cylinder 61, connecting sliding arms are fixedly connected to two sides of the bottom of the surface of the plugging sliding cylinder 61, a spring connecting cylinder 64 is fixedly connected to the top end of each connecting sliding arm, a cam rotary table 62 is rotatably connected to the axis of the top of the inner cavity of the docking bottom shell 6, an inner rotor 63 is fixedly connected to the top of the surface of the cam rotary table 62, a vibrating sliding plate 65 is slidably connected to the bottom of the inner cavity of the inner rotor 63 through the plugging hole, a vibrating sliding plate is fixedly connected to the middle of the surface of the vibrating sliding plate 65, and a built-in power supply 66 is slidably connected to the bottom end of the vibrating sliding plate.
The surface of inner rotor 63 and the middle part fixed connection of grafting slide tube 61 inner wall, the top of grafting slide tube 61 extends to the inside of discharge gate 35 through the through-hole, the bottom of inner rotor 63 surface and the top fixed connection of grafting slide tube 61 inner wall, the top of vibration slide plate passes through vibration slide plate 65 and the bottom sliding connection of inner rotor 63 inner chamber, and the bottom of vibration slide plate 65 passes through connecting wire and the inner chamber fixed connection of built-in power 66.
The discharging equipment 5 comprises a deflection motor 51, a traction rotary drum 52 is rotationally connected to the surface of an output shaft of the deflection motor 51, a traction baffle belt 55 is slidingly connected to one side, far away from the material conveying component 3, of an inner cavity of the traction rotary drum 52 through a cutting groove, a limiting cylinder is fixedly connected to the top of the surface of the deflection motor 51, a vertical rotary rod 53 is slidingly connected to the top of the inner cavity of the limiting cylinder, and side rotary plates 54 are rotationally connected to two sides of the surface of the vertical rotary rod 53.
The number of the deflection motors 51 is two, the surface of the deflection motor 51 is fixedly connected with one end of the inner cavity of the processing table 2, the top of the traction rotary drum 52 extends to the outer part of the processing table 2, both ends of the traction baffle belt 55 extend to the inner part of the traction rotary drum 52 through cutting grooves, both ends of the traction baffle belt 55 are fixedly connected with the surface of the vertical rotary rod 53, and the middle part of the surface of the traction baffle belt 55 is mutually extruded with the surface of the engine belt pulley.
When the storage shell 31 rotates to a position of being in butt joint with the butt joint bottom shell 6, the inner rotor 63 controls the cam rotary table 62 to rotate, so that the cam rotary table 62 rotates until the top of the cam rotary table 62 is in butt joint with a top groove of an inner cavity of the butt joint bottom shell 6, at the moment, the top end of the plug-in sliding cylinder 61 rises under the traction action of the spring connecting cylinder 64, penetrates through the top of the inner cavity of the butt joint bottom shell 6, is inserted below the inner cavity of the discharge hole 35, guides powder clamped at the discharge hole 35, and the powder flows into the bottom of the butt joint bottom shell 6 through a chute of the plug-in sliding cylinder 61, so that collection work is completed.
Because the inner rotor 63 controls the cam rotary table 62 to rotate, the whole plug-in sliding cylinder 61 can displace in the vertical plane, and then shake under the elastic force of the spring connecting cylinder 64, at this time, the vibration sliding plate 65 also slides along the bottom of the inner cavity of the plug-in sliding cylinder 61 through the side sliding rail, and then the top end of the vibration sliding plate 65 changes from the state of contacting with the inner rotor 63 to the state of poor contact with the bottom guide of the inner rotor 63, so that the inner rotor 63 stops working, at this time, the plug-in sliding cylinder 61 vibrates in the vertical plane, after the plug-in sliding cylinder 61 is static, the vibration sliding plate 65 is completely butted with the bottom guide of the inner rotor 63 again, and the inner rotor 63 can restart to rotate.
After the processing of the rotating wheel is finished, the shaping device 4 is pulled out of the inner cavity of the processing table 2, then the lower control bottom plate 21 is started to pull the closed sliding plate 23 downwards, at the moment, the ventilation opening at the side of the closed sliding plate 23 is opened, then the blowing device 7 blows air upwards in a steering way, the rotating wheel leaves the inner cavity of the processing table 2, the deflection motors 51 at the two sides are started, the deflection motors 51 control the traction rotating drum 52 to rotate, at the moment, the traction rotating drum 52 at the two sides rotates the traction baffle belt 55 to the side close to the rotating wheel, the traction baffle belt 55 pushes out the rotating wheel, at the moment, the traction baffle belt 55 is subjected to the reaction force of the rotating wheel, the internal vertical rotating rod 53 is pulled, and then the deflection motor 51 rotates the traction rotating drum 52 to the initial position, so that the traction baffle belt 55 protects the outside.
The air blowing device 7 comprises a slot cylinder 71, a switching through pipe 72 is fixedly connected to the bottom of the inner cavity of the slot cylinder 71, an air blowing ring 73 is fixedly connected to the top of the inner cavity of the slot cylinder 71 through an air vent, an air inlet through pipe 74 is fixedly connected to the bottom of the inner cavity of the air blowing ring 73, the bottom end of the air inlet through pipe 74 extends to the middle of the inner cavity of the slot cylinder 71 through a through groove, the bottom end of the switching through pipe 72 is fixedly connected with the inner cavity of the control bottom plate 21, and the axis center of the inner cavity of the slot cylinder 71 is in sliding connection with the surface of the traction push rod 22.
When the device is used, the through hole of the closed slide plate 23 is blocked by the plastic groove of the processing table 2, so that powder cannot fall into the through hole above the slot cylinder 71 when the powder is processed, and the traction push rod 22 slides downwards along the axis of the inner cavity of the slot cylinder 71 in the process of sliding downwards, then the bottom end of the air inlet through pipe 74 is changed into an open state from a blocked state, and at the moment, the air blowing ring 73 can suck air through the air inlet through pipe 74 and blow out the rotating wheel from bottom to top along the plastic groove.
It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present invention without the inventive step, are intended to be within the scope of the present invention. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.
Claims (5)
1. The utility model provides an engine belt pulley powder metallurgy rotary forming die, includes processing platform (2) and changes and cut device (1), the bottom fixedly connected with control bottom plate (21) of processing platform (2) inner chamber, the axle center department sliding connection of control bottom plate (21) inner chamber has traction push rod (22), the top fixedly connected with of traction push rod (22) seals slide (23), change the axle center department rotation of cutting device (1) inner chamber and be connected with switching bull stick (11), its characterized in that: comprising the steps of (a) a step of,
the material conveying component (3), the material conveying component (3) can add metal powder into a shaping port in the middle of the inner cavity of the processing table (2), the bottom end of the material conveying component (3) is connected with a butt joint bottom shell (6) in a sliding manner, the surface of the butt joint bottom shell (6) is fixedly connected with one side, far away from the processing table (2), of the surface of the rotary cutting device (1), and the axis of the top of the inner cavity of the material conveying component (3) is fixedly connected with one side, far away from the surface of the switching rotary rod (11), of the surface of the rotary cutting device through a traction rotary rod;
the shaping device (4), the shaping device (4) can cooperate with the processing table (2), metal powder put into the inner cavity of the processing table (2) is compressed into the shape of an engine belt pulley, the shaping device (4) is provided with a threaded rotating rod (41), the bottom of the surface of the threaded rotating rod (41) is fixedly connected with a butt joint pressing shell (42), the axle center of the top of the inner cavity of the butt joint pressing shell (42) is fixedly connected with an axle center sleeve, the middle part of the inner cavity of the axle center sleeve is rotationally connected with an air extraction rotating fan (43) through a rotor motor, the bottom of the inner cavity of the butt joint pressing shell (42) is fixedly connected with a stacked magnetic plate (46), the top of the surface of the stacked magnetic plate (46) is fixedly connected with a separation plate (45), and the top of the inner cavity of the axle center sleeve is fixedly connected with a vertical through pipe (44) through a through hole;
the discharging device (5) can remove the engine belt pulley processed by the inner cavity of the processing table (2);
the processing table is characterized in that a through shaping opening is formed in the axis of the inner cavity of the processing table (2), the inner cavity of the processing table (2) is fixedly connected with a heating device through the through shaping opening, the top of the surface of the threaded rotating rod (41) is rotationally connected with a guiding rotating cylinder, and the top end of the guiding rotating cylinder is fixedly connected with one side, far away from the material conveying part (3), of the surface of the switching rotating rod (11);
the middle part of the inner cavity of the butt joint pressing shell (42) is uniformly provided with a through hole, the bottom of the surface of the butt joint pressing shell (42) is in sliding connection with the inner cavity of the processing table (2) through the through hole, the top end of the traction push rod (22) is spliced with the axle center of the bottom of the inner cavity of the butt joint pressing shell (42) through an adaptive slot, one side of the inner cavity of the sealing slide plate (23) far away from the traction push rod (22) is uniformly provided with the through hole, and the bottom of the inner cavity of the processing table (2) is fixedly connected with a blast device (7) through the through hole;
the material conveying component (3) comprises a material storage shell (31), a pushing rotary rod (32) is rotationally connected to the axis of the top of the inner cavity of the material storage shell (31), a butt-joint sliding cylinder (33) is slidably connected to the middle of the inner cavity of the material storage shell (31), a material outlet (35) is uniformly formed in the axis of the bottom of the inner cavity of the butt-joint sliding cylinder (33), and the bottom of the surface of the butt-joint sliding cylinder (33) is fixedly connected with the bottom of the inner cavity of the material storage shell (31) through a spring buffer rod (34);
the bottom end of the butt joint sliding cylinder (33) is in sliding connection with the top of the inner cavity of the processing table (2) through a penetrating shaping opening, the top end of the pushing rotary rod (32) is in rotary connection with one end of the switching rotary rod (11) far away from the processing table (2) through a rotary motor, the bottom end of the pushing rotary rod (32) is in rotary connection with the axle center of the bottom of the inner cavity of the butt joint sliding cylinder (33), and one side of the surface of the spring buffer rod (34) far away from the butt joint sliding cylinder (33) is fixedly connected with the bottom of the inner cavity of the storage shell (31);
the rotor in the inner cavity of the butt joint pressing shell (42) controls the air suction rotating fan (43) to rotate, so that air is sucked from the through openings uniformly formed in the middle of the inner cavity of the butt joint pressing shell (42) through the vertical through pipe (44), and then metal powder near the through shaping openings is sucked into the butt joint pressing shell (42).
2. The rotary forming die for powder metallurgy of an engine pulley according to claim 1, wherein: the butt joint drain pan (6) is including grafting slide tube (61), the through hole has evenly been seted up to one side that axle center department was kept away from to grafting slide tube (61) inner chamber, the equal fixedly connected with of both sides of grafting slide tube (61) surface bottom connects the arm, and connects the top fixedly connected with spring of arm to link tube (64), the axle center department rotation at butt joint drain pan (6) inner chamber top is connected with cam carousel (62), the top fixedly connected with inner rotor (63) on cam carousel (62) surface, the bottom of inner rotor (63) surface inner chamber is through grafting mouth sliding connection having connection guide arm, and the middle part fixedly connected with vibration slide (65) on connection guide arm surface, the bottom sliding connection of vibration slide (65) has built-in power (66).
3. The rotary forming die for powder metallurgy of an engine pulley according to claim 2, wherein: the surface of inner rotor (63) and the middle part fixed connection of grafting slide tube (61) inner wall, the top of grafting slide tube (61) is through the inside that the through-hole extends to discharge gate (35), the bottom on inner rotor (63) surface and the top fixed connection of grafting slide tube (61) inner wall, the bottom sliding connection of bottom in vibration slide plate (65) and inner rotor (63) inner chamber is passed through to the top of connection guide arm, and the bottom of connection guide arm is through connecting wire and the inner chamber fixed connection of built-in power (66).
4. The rotary forming die for powder metallurgy of an engine pulley according to claim 1, wherein: the discharging equipment (5) comprises a deflection motor (51), a traction rotary drum (52) is rotationally connected to the surface of an output shaft of the deflection motor (51), a traction baffle belt (55) is slidingly connected to one side, far away from the material conveying component (3), of an inner cavity of the traction rotary drum (52) through a cutting groove, a limiting cylinder is fixedly connected to the top of the surface of the deflection motor (51), a vertical rotary rod (53) is slidingly connected to the top of the inner cavity of the limiting cylinder, and side rotary plates (54) are rotationally connected to two sides of the surface of the vertical rotary rod (53).
5. The rotary forming die for powder metallurgy of an engine pulley according to claim 4, wherein: the number of the deflection motors (51) is two, the surface of the deflection motors (51) is fixedly connected with one end of an inner cavity of the processing table (2), the top of the traction rotary drum (52) extends to the outer part of the processing table (2), two ends of the traction baffle belt (55) extend to the inner part of the traction rotary drum (52) through cutting grooves, two ends of the traction baffle belt (55) are fixedly connected with the surface of the vertical rotating rod (53), and the middle part of the surface of the traction baffle belt (55) is mutually extruded with the surface of the engine belt pulley.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310445792.2A CN116550977B (en) | 2023-04-24 | 2023-04-24 | Powder metallurgy rotary forming die for belt pulley of engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310445792.2A CN116550977B (en) | 2023-04-24 | 2023-04-24 | Powder metallurgy rotary forming die for belt pulley of engine |
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| CN116550977B true CN116550977B (en) | 2023-10-13 |
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| GB816363A (en) * | 1956-11-06 | 1959-07-08 | Eugene Adam Wahl | Improvements in or relating to automatic powder-feeding apparatus |
| CN211965931U (en) * | 2020-04-03 | 2020-11-20 | 自贡市光大电子有限责任公司 | Dust keeper of powder forming briquetting machine |
| CN112453394A (en) * | 2020-11-24 | 2021-03-09 | 梁慧荣 | Powder metallurgy compacting die |
| CN214079248U (en) * | 2020-12-30 | 2021-08-31 | 无锡市凯义月机械有限公司 | Powder metallurgy gear forming die |
| CN215615079U (en) * | 2021-08-27 | 2022-01-25 | 常州格瑞特粉末冶金有限公司 | Belt pulley powder metallurgy rotary forming die |
| CN215824263U (en) * | 2021-07-02 | 2022-02-15 | 太仓市卓志电子设备有限公司 | Quick-dismantling ceramic powder metallurgy die |
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2023
- 2023-04-24 CN CN202310445792.2A patent/CN116550977B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB816363A (en) * | 1956-11-06 | 1959-07-08 | Eugene Adam Wahl | Improvements in or relating to automatic powder-feeding apparatus |
| CN211965931U (en) * | 2020-04-03 | 2020-11-20 | 自贡市光大电子有限责任公司 | Dust keeper of powder forming briquetting machine |
| CN112453394A (en) * | 2020-11-24 | 2021-03-09 | 梁慧荣 | Powder metallurgy compacting die |
| CN214079248U (en) * | 2020-12-30 | 2021-08-31 | 无锡市凯义月机械有限公司 | Powder metallurgy gear forming die |
| CN215824263U (en) * | 2021-07-02 | 2022-02-15 | 太仓市卓志电子设备有限公司 | Quick-dismantling ceramic powder metallurgy die |
| CN215615079U (en) * | 2021-08-27 | 2022-01-25 | 常州格瑞特粉末冶金有限公司 | Belt pulley powder metallurgy rotary forming die |
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