CN114346240A

CN114346240A - Metal powder injection molding system

Info

Publication number: CN114346240A
Application number: CN202111522324.8A
Authority: CN
Inventors: 朱凤飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-04-15

Abstract

The invention belongs to the technical field of powder metallurgy, in particular to a metal powder injection molding system, which aims at solving the problem that hollowing in a mold is easily caused when metal powder is loaded in the prior art, and provides the following scheme. The discharging mechanism can be controlled to start discharging under the action of the first magnet, and metal powder falling into the die groove can be continuously filled in a solid mode along with the arrangement of the vibration mechanism, so that hollowing in the die groove is avoided.

Description

Metal powder injection molding system

Technical Field

The invention relates to the technical field of powder metallurgy, in particular to a metal powder injection molding system.

Background

The metal powder injection moulding technology is characterized by that it introduces modern plastic injection moulding technology into the field of powder metallurgy to form a new kind of powder, and mixes it with organic binder, after granulation, in the heated and plasticized state the injection moulding machine injects it into mould cavity to make solidification and moulding, then uses chemical or thermal decomposition method to remove the binder from the formed blank, and finally uses sintering densification to obtain the invented finished product.

At present, the filling of metal powder in the die is generally only carried out by pushing the metal powder stack from a part die groove in the hot pressing process, at the moment, the powder automatically falls into the upward part die, then the filling part withdraws, and then hot pressing is carried out, but the filling mode is only suitable for feeding of smaller parts, and for large parts, the feeding mode easily causes insufficient metal powder in the die groove, so that the compactness of the parts is insufficient, and the mechanical property of the parts is influenced, therefore, a feeding auxiliary mechanism capable of avoiding the phenomenon of empty bulging of the metal powder in the die groove is needed, so that the filling of the metal powder in the die groove is full.

Disclosure of Invention

The invention provides a metal powder injection molding system, aiming at solving the problem that the cavity in a mold is easy to bulge when metal powder is loaded in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: a metal powder injection molding system comprises a die-casting table, wherein a left polishing chute and a right polishing chute are fixedly arranged in the middle of the upper surface of the die-casting table, a die groove is formed in the middle of the polishing chute, a fixing frame is fixedly arranged at the edges of two sides of the upper surface of the die-casting table, a die pressing mechanism is fixedly arranged above the die groove in the middle of the upper surface of the fixing frame, a guide frame is fixedly arranged below the die groove in the lower surface of the die-casting table, four to six support rods are equidistantly distributed in the lower surface of the guide frame, a support seat is fixedly arranged at the bottom end of each support rod, an electric push rod is fixedly arranged in the middle of the upper surface of each support seat, a die plug is fixedly arranged at the top end of each extension rod of the electric push rod, a rectangular jack is formed in the guide frame close to the bottom end, a vibration mechanism is arranged in each rectangular jack, and an opening of the sliding chute of each polishing chute is integrally formed into a cuboid structure, and the slip is gone up the workbin and is kept away from the one side of die pressing mechanism and be fixed with advancing mechanism, and the top of the slip is gone up the workbin and is fixed with the charging bucket near advancing mechanism's one end, the below of charging bucket is fixed with inserts the unloading slide in the slip charging bucket to one side, and the tank bottom of polishing spout is close to the die slot department and inlays and be equipped with magnet one, and the lower surface of the slip is gone up the workbin and is provided with the discharge mechanism with a magnet looks adaptation, thereby can be when using, when the slip is gone up the workbin and is driven the material and remove to the material loading position, can control discharge mechanism to begin the ejection of compact under the effect of magnet one, can constantly carry out solid filling to the metal powder that falls into the die slot along with setting of vibrations mechanism, avoid the inside hollowing to appear.

The invention is further characterized in that two mounting holes which are centrosymmetric with each other are formed in the circumferential inner wall of the guide frame close to the middle part, a backstop mechanism is fixed in each mounting hole, the backstop mechanism comprises an outer barrel fixed in the mounting hole, the opening of the outer barrel faces to the mold plug, an inner sliding rod is connected to the opening of the outer barrel in a sliding mode, a triangular top and a compression spring are fixed at two ends of the inner sliding rod respectively, and a limiting groove matched with the end part of the triangular top is formed in the circumferential outer wall of the mold plug, so that when the top end of the mold plug bears huge pressure from the top end in use, the extrusion force can be dispersed to the backstop mechanism on the side surface, the positioning effect is improved, and the accuracy of the thickness of a workpiece is improved.

As a further arrangement of the invention, the vibrating mechanism comprises a vibrating tamper slidably connected in a rectangular socket, a spring baffle is fixed on one side of the circumferential outer wall of the vibrating tamper close to the inner wall, a first return spring is fixed between the side surface of the spring baffle and the outer wall, a clamping groove is formed in the upper surface of one end of the vibrating tamper extending out of the guide frame, the upper surface of the clamping groove is provided with a poking wheel, the two sides of the poking wheel are provided with side protection plates, the middle of the poking wheel is inserted with a lengthened shaft lever, the rear end of the lengthened shaft lever is fixed with a driven belt pulley, and a driving box matched with the driven belt pulley is fixed on the top inner wall of the die-casting table close to the back surface, and the driving wheel is matched with the clamping groove, can drive the vibrations pole of pounding constantly to strike the mould end cap in circulation, and then will fall into the continuous vibrations compaction on metal powder on mould end cap top, avoid appearing the phenomenon of hollowing.

The vibrating tamper is further provided with poking blocks which are fixed on the outer wall of the circumference of the poking wheel and close to the front side and the rear side, rollers are arranged between the two poking blocks, and blocking notches are formed in the clamping grooves, so that the vibrating tamper can be poked discontinuously when the vibrating tamper is poked.

The invention is further characterized in that the advancing mechanism comprises a wheel disc fixed at the top end of an output shaft of the driving box, the front side of the wheel disc close to the circumferential edge is rotatably connected with a connecting rod, two bearing seats parallel to each other are fixed at the tail end of the die-casting table, a same swing push rod is rotatably connected between the two bearing seats, the bottom end of the swing push rod is rotatably connected with the connecting rod, a strip-shaped hole is formed in the middle of the upper half section of the swing push rod, a push rod is fixed at one end of the sliding upper material box close to the swing push rod, a lug matched with the strip-shaped hole is fixed at the front end of the push rod, the wheel disc is driven by an intermittent gear, and a dead period is formed when the wheel disc rotates until the connecting rod is in two horizontal states, so that the sliding upper material box can be pushed through the rotating wheel disc and pushed until the sliding upper material box covers the die groove, so that the metal powder fills the die groove sufficiently and then the slide upper box is pulled back for die casting work.

The discharging mechanism comprises a vertical top support rod which is connected to the top of the sliding upper material box in a sliding mode, a plug and a second magnet are fixedly distributed at the upper end and the lower end of the top support rod, a second return spring is fixedly arranged between the upper surface of the second magnet and the top inner wall of the sliding upper material box, the repulsive force between the first magnet and the second magnet is larger than the sum of the gravity of the plug and the elastic restoring force of the second return spring, a wheel is fixed at the bottom end of the second magnet, and a conical funnel is fixedly arranged at the bottom of the feeding barrel, so that when the sliding upper material box carries the discharging mechanism to move to the position above the first magnet, the plug at the bottom of the conical funnel can be supported, and metal powder can flow down.

The metal powder feeding device is further provided with an arc-shaped sliding groove reserved at the top end of the blanking sliding plate, a sliding hole matched with the outer diameter of the top supporting rod is formed in the bottom of the arc-shaped sliding groove, and the top end of the blanking sliding plate is located right below the conical hopper so as to receive and transfer leaked metal powder to slide downwards to the upper part of the die groove.

The invention is further arranged in that a speed reducing motor is fixed on the outer wall of the top of the sliding upper material box and positioned above the die groove in an inclined mode, a vertical transmission rod is fixed at the top end of an output shaft of the speed reducing motor, a windmill scraper is fixed at the bottom end of the transmission rod, the lower surface of the windmill scraper is flush with the lower surface of the sliding upper material box, and a partition plate is fixed on the inner wall of the bottom of the sliding upper material box, so that conveyed metal powder can be slowly polymerized above the die groove in use, the filling of the die groove is accelerated, and the metal powder can be supplemented in time when the vibration mechanism vibrates.

The polishing device is further provided with a rubber strip fixed at the bottom end of the vertical side plate at the advancing end of the sliding feeding box, and the lower surface of the rubber strip is tightly attached to the bottom of the polishing sliding groove, so that less residues are left on the polishing sliding groove.

To sum up, the beneficial effect in this scheme is:

1. according to the metal powder injection molding system, the intermittent feeding mechanism and the vibration mechanism on the side face of the mold plug are arranged, so that when the metal powder injection molding system is used, when the feeding box slides to drive a material to move to a feeding position, the discharging mechanism can be controlled to start discharging under the action of the first magnet, metal powder falling into a mold groove can be continuously filled in a solid mode along with the arrangement of the vibration mechanism, and hollowing in the metal powder injection molding system is avoided;

2. according to the metal powder injection molding system, the poking wheels are matched with the clamping grooves, so that the vibrating tamper can be circularly driven to continuously impact the mold plug, metal powder falling on the top end of the mold plug is continuously vibrated and compacted, and the phenomenon of hollowing is avoided;

3. according to the metal powder injection molding system, the rotating wheel disc and the connecting rod swing push rod are arranged in a matched mode in the arranged gap rotating mode, when the metal powder injection molding system is used, the sliding feeding box can be pushed through the rotating wheel disc, the sliding feeding box can be stopped for a period of time after being pushed to cover a die groove, so that metal powder can be fully filled in the die groove, and then the sliding feeding box is pulled back to conduct die casting;

4. this kind of metal powder injection molding system through setting up the windmill scraper blade of pivoted in mould groove top, can be when carrying out the material loading to the mould groove, can be constantly with the metal powder who transports coming slowly polymerization to the top in mould groove for the packing to the mould groove, and then ensure that vibrations mechanism can have metal powder to supply in time when vibrations.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is a schematic perspective view of the present invention during loading;

FIG. 3 is a schematic perspective view of the present invention after loading;

FIG. 4 is a perspective view of the vibration mechanism of the present invention;

FIG. 5 is a schematic view of a half-section structure of the retaining mechanism of the present invention;

FIG. 6 is an enlarged schematic view of FIG. 1 at A according to the present invention;

FIG. 7 is a schematic view of a half-section three-dimensional structure of the discharging mechanism of the present invention;

fig. 8 is a schematic perspective view of a windmill blade according to a second embodiment of the present invention.

In the figure: 1. die-casting platform; 2. a guide frame; 3. a support bar; 4. a mold plug; 5. an electric push rod; 6. a supporting seat; 7. a first return spring; 8. vibrating the tamper; 9. a poking wheel; 10. a drive box; 11. a wheel disc; 12. a connecting rod; 13. swinging the push rod; 14. a magnet I; 15. a second magnet; 16. a second return spring; 17. a plug; 18. a feeding barrel; 19. a conical funnel; 20. a blanking sliding plate; 21. a reduction motor; 22. a die pressing mechanism; 23. a fixed mount; 24. sliding the feeding box; 25. a windmill blade; 26. polishing the chute; 27. a backstop mechanism; 28. an advancing mechanism; 29. a discharging mechanism; 30. a mold slot; 31. a limiting groove; 32. a rectangular jack; 33. a card slot; 34. a shifting block; 35. a side guard plate; 36. a triangular plug; 37. an inner slide bar; 38. a compression spring; 39. a roller; 40. a transmission rod; 41. a rubber strip; 42. a separator.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, 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 device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1

Referring to fig. 1-6, a metal powder injection molding system comprises a die casting table 1, wherein a left and right polishing sliding groove 26 is fixed in the middle of the upper surface of the die casting table 1, an inclined sliding slope is further arranged at the discharge end of the polishing sliding groove 26 to facilitate pushing out a molded workpiece after ejection, a mold groove 30 is arranged in the middle of the polishing sliding groove 26, a fixing frame 23 is fixed on the upper surface of the die casting table 1 near the edges of two sides, a mold pressing mechanism 22 is fixed on the middle of the upper surface of the fixing frame 23 above the mold groove 30, a guide frame 2 is fixed on the lower surface of the die casting table 1 below the mold groove 30, a device for supporting a column mold plug 4 is arranged, four to six support rods 3 are fixed on the lower surface of the guide frame 2 and distributed equidistantly, a support base 6 is fixed at the bottom end of each support rod 3, and an electric push rod 5 is fixed on the middle of the upper surface of each support base 6, a mold plug 4 is fixed at the top end of an extension rod of the electric push rod 5, a rectangular insertion hole 32 is formed in the inner part of the guide frame 2 close to the bottom end, a vibration mechanism is arranged in the rectangular insertion hole 32, a sliding upper material box 24 with a downward opening and a whole cuboid structure is connected in the sliding groove of the polishing sliding groove 26 in a sliding manner, a forward mechanism 28 is fixed at one side of the sliding upper material box 24 away from the die pressing mechanism 22, a feeding barrel 18 is fixed at one end of the top end of the sliding upper material box 24 close to the forward mechanism 28, a discharging sliding plate 20 obliquely inserted into the sliding upper material box 24 is fixed below the feeding barrel 18, a magnet I14 is embedded at the position of the bottom of the polishing sliding groove 26 close to the mold groove 30, a discharging mechanism 29 matched with the magnet I14 is arranged on the lower surface of the sliding upper material box 24, a push rod handle is fixed at the middle part of one end of the sliding upper material box 24 away from the forward mechanism 28 and used for pushing an ejected finished workpiece away from the upper part of the mold groove 30, therefore, when the material loading box 24 is slid to drive materials to move to a material loading position, the discharging mechanism 29 can be controlled to start discharging under the action of the first magnet 14, solid filling can be continuously carried out on metal powder falling into the die groove 30 along with the arrangement of the vibration mechanism, and hollowing is avoided inside.

Wherein, the circumference inner wall of guide frame 2 is close to the middle part and is opened there are two mounting holes that are centrosymmetric mutually, and all be fixed with stopping mechanism 27 in two mounting holes, stopping mechanism 27 is including fixing the outer bucket in the mounting hole, and the opening of outer bucket is towards mould end cap 4, and the opening part sliding connection of outer bucket has interior slide bar 37, the both ends of interior slide bar 37 are fixed with triangle top 36 and compression spring 38 respectively, and the circumference outer wall of mould end cap 4 opens the spacing groove 31 with 36 tip looks adaptations of triangle top, thereby can be when the top of mould end cap 4 bears the huge pressure that comes from the top when using, can disperse this extrusion force to the stopping mechanism of side on, improved the positioning effect and improved the accuracy nature of work piece thickness.

Wherein, the vibration mechanism comprises a vibration tamper 8 which is slidably connected in a rectangular jack 32, a spring baffle is fixed on one side of the circumferential outer wall of the vibration tamper 8 close to the inner wall, a first reset spring 7 is fixed between the side surface of the spring baffle and the outer wall, a clamping groove 33 is opened on the upper surface of one end of the vibration tamper 8 extending out of the guide frame 2, a poking wheel 9 is arranged on the upper surface of the clamping groove 33, side guard plates 35 are arranged on both sides of the poking wheel 9, a lengthening shaft rod is inserted in the middle of the poking wheel 9, a driven belt pulley is fixed at the rear end of the lengthening shaft rod, a driving box 10 mutually matched with the driven belt pulley is fixed on the top inner wall of the die-casting platform 1 close to the back, the poking wheel 9 is matched with the arrangement of the clamping groove 33, the vibration tamper 8 can be cyclically driven to continuously impact the die plug 4, and further the metal powder falling on the top end of the die plug 4 is continuously vibrated and compacted, the phenomenon of hollowing is avoided.

Wherein, the circumference outer wall of the poking wheel 9 is close to the front and back both sides and is all fixed with the poking block 34, is provided with the roller 39 between two poking blocks 34, and the draw-in groove 33 department is provided with blocks the incision to can stir it when stirring vibrations tamper 8 discontinuously.

Wherein, the advancing mechanism 28 comprises a wheel disc 11 fixed on the top end of the output shaft of the driving box 10, the front side of the wheel disc 11 near the circumferential edge is rotatably connected with a connecting rod 12, the tail end of the die-casting table 1 is fixed with two parallel bearing seats, and the two bearing seats are rotatably connected with a same swing push rod 13, the bottom end of the swing push rod 13 is rotatably connected with the connecting rod 12, the middle of the upper half section of the swing push rod 13 is provided with a strip-shaped hole, one end of the sliding upper material box 24 near the swing push rod 13 is fixed with a push rod, the front end of the push rod is fixed with a lug matched with the strip-shaped hole, the wheel disc 11 is driven by an intermittent gear, and the wheel disc 11 rotates until the connecting rod 12 is in two horizontal states to form one end dead time, thereby when in use, the sliding upper material box 24 can be pushed by the rotating wheel disc 11, and the die groove 30 can be dead time after being pushed, so that the metal powder fills the die slots sufficiently and the slide top box 24 is then pulled back for die casting.

Wherein, discharge mechanism 29 includes the vertical ejector pin of sliding connection at the top of workbin 24 on the slip, and the upper and lower both ends distribution of ejector pin is fixed with end cap 17 and second magnet 15, be fixed with reset spring two 16 between the upper surface of second magnet 15 and the top inner wall of workbin 24 on the slip, repulsion between first magnet 14 and second magnet 15 is greater than the gravity of end cap 17 and the elastic restoring force sum of reset spring two 16, the bottom mounting wheel of second magnet 15, the barrel bottom department of loading bucket 18 is fixed with toper funnel 19, thereby can ensure to slide when loading box 24 is carrying discharge mechanism 29 and is moving to the top of first magnet 14, can prop up end cap 17 at toper funnel 19 bottom with the end cap, and then let metal powder can flow down.

An arc chute is reserved at the top end of the blanking sliding plate 20, a sliding hole matched with the outer diameter of the top supporting rod is formed in the bottom of the arc chute, and the top end of the blanking sliding plate 20 is located right below the conical funnel 19 so as to catch and transfer the leaked metal powder to slide to the upper side of the die groove 30.

The working principle is as follows: before use, the charging barrel 18 is filled with metal powder, and then the metal powder cannot leak under the action of the plug 17; when the front feeding mechanism 28 pushes the sliding feeding box 24 to move to the position of the die groove 30, the second magnet 15 moves to the position above the first magnet 14 along with the movement of the sliding feeding box 24, at the moment, because the repulsive force between the first magnet 14 and the second magnet 15 is larger than the sum of the gravity of the plug 17 and the elastic restoring force of the second return spring 16, the plug 17 in the discharging mechanism 29 can be controlled to ascend under the action of the first magnet 14, the limited metal powder of the plug 17 is lost, the metal powder starts to be discharged, the metal powder is injected into the die groove 30 under the action of the discharging sliding plate 20, and the metal powder falling into the die groove 30 can be continuously filled in a solid manner along with the arrangement of the vibrating mechanism, so that the phenomenon that hollow drum appears inside is avoided; and finally, controlling the die pressing mechanism 22 to perform die-casting.

Example 2

Referring to fig. 7-8, a metal powder injection molding system, in this embodiment, compared to embodiment 1, further includes a speed reduction motor 21 fixed on the top outer wall of the sliding upper bin 24 and located obliquely above the mold groove 30, a vertical transmission rod 40 fixed on the top end of the output shaft of the speed reduction motor 21, a windmill blade 25 fixed on the bottom end of the transmission rod 40, the lower surface of the windmill blade 25 being flush with the lower surface of the sliding upper bin 24, and a partition plate 42 fixed on the bottom inner wall of the sliding upper bin 24, so that the conveyed metal powder can be slowly polymerized above the mold groove 30 during use, the filling of the mold groove 30 is accelerated, and further the metal powder can be supplemented in time when the vibration mechanism vibrates.

Wherein, the bottom end of the vertical side plate of the advancing end of the sliding upper material box 24 is fixed with a rubber strip 41, and the lower surface of the rubber strip 41 is tightly attached to the bottom of the polishing chute 26, so as to ensure that the polishing chute 26 has little residue.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a metal powder injection molding system, includes die-casting platform (1), the upper surface intermediate fixation of die-casting platform (1) has polishing spout (26) about having a perfect understanding, and the centre of polishing spout (26) is provided with mould groove (30), and the upper surface of die-casting platform (1) is close to both sides edge and is fixed with mount (23), the upper surface middle part that the upper surface middle part of mount (23) is located mould groove (30) is fixed with moulding-die mechanism (22), the lower surface that the lower surface of die-casting platform (1) is located the below of mould groove (30) is fixed with guide frame (2), and the lower fixed surface of guide frame (2) has four to six bracing pieces (3) that the equidistance distributes, and the bottom mounting of bracing piece (3) has supporting seat (6), and the upper surface middle part of supporting seat (6) is fixed with electric putter (5), and the top of the extension rod of electric putter (5) is fixed with mould end cap (4), its characterized in that, it has rectangle jack (32) to open near the bottom in guide frame (2), and is provided with vibration mechanism in rectangle jack (32), sliding connection has the opening to whole feed box (24) of going up that is the slip of cuboid structure downwards in the spout of polishing spout (26), and slides and go up one side that feed box (24) kept away from die pressing mechanism (22) and be fixed with advancing mechanism (28), and the top of sliding feed box (24) is close to advancing mechanism (28) one end and is fixed with feed barrel (18), the below of feed barrel (18) is fixed with inserts unloading slide (20) in the slip feed box (24) to one side, and the tank bottom of polishing spout (26) is close to die groove (30) department and inlays and is equipped with magnet (14), and the lower surface of slip feed box (24) is provided with discharge mechanism (29) with magnet (14) looks adaptation.

2. The metal powder injection molding system according to claim 1, wherein two mounting holes are formed in the circumferential inner wall of the guide frame (2) near the middle portion, the mounting holes are centrosymmetric with each other, the retaining mechanism (27) is fixed in each of the two mounting holes, the retaining mechanism (27) comprises an outer barrel fixed in the mounting hole, the opening of the outer barrel faces the mold plug (4), an inner sliding rod (37) is connected to the opening of the outer barrel in a sliding manner, a triangular plug (36) and a compression spring (38) are fixed to two ends of the inner sliding rod (37) respectively, and a limiting groove (31) matched with the end portion of the triangular plug (36) is formed in the circumferential outer wall of the mold plug (4).

3. The metal powder injection molding system of claim 1, wherein the vibrating mechanism comprises a vibrating ram (8) slidably connected in a rectangular jack (32), a spring baffle is fixed on one side of the outer circumferential wall of the vibrating ram (8) close to the inner wall, a first return spring (7) is fixed between the side surface of the spring baffle and the outer wall, a clamping groove (33) is formed in the upper surface of one end, extending out of the guide frame (2), of the vibrating ram (8), a poking wheel (9) is arranged on the upper surface of the clamping groove (33), side protection plates (35) are arranged on two sides of the poking wheel (9), an extension shaft rod is inserted in the middle of the poking wheel (9), a driven pulley is fixed at the rear end of the extension shaft rod, and a driving box (10) mutually matched with the driven pulley is fixed on the top inner wall of the die-casting table (1) close to the rear side.

4. The metal powder injection molding system according to claim 3, wherein the outer circumferential wall of the toggle wheel (9) is fixed with toggle blocks (34) near the front and rear sides, a roller (39) is arranged between the two toggle blocks (34), and a blocking notch is arranged at the clamping groove (33).

5. A metal powder injection molding system according to claim 3, the advancing mechanism (28) comprises a wheel disc (11) fixed at the top end of the output shaft of the driving box (10), and the front surface of the wheel disc (11) is rotatably connected with a connecting rod (12) near the circumferential edge, two parallel bearing seats are fixed at the tail end of the die-casting table (1), and a same swing push rod (13) is rotatably connected between the two bearing seats, the bottom end of the swing push rod (13) is rotatably connected with the connecting rod (12), a strip-shaped hole is arranged in the middle of the upper half section of the swing push rod (13), and one end of the sliding feeding box (24) close to the swing push rod (13) is fixed with a push rod, the front end part of the push rod is fixed with a lug matched with the strip hole, the wheel disc (11) is driven by an intermittent gear, and one end of a stagnation period is formed after the wheel disc (11) rotates until the connecting rod (12) is in two horizontal states.

6. The metal powder injection molding system according to claim 1, wherein the discharging mechanism (29) comprises a vertical top brace slidably connected to the top of the sliding upper bin (24), a plug (17) and a second magnet (15) are fixedly distributed at the upper end and the lower end of the top brace, a second return spring (16) is fixedly arranged between the upper surface of the second magnet (15) and the top inner wall of the sliding upper bin (24), the repulsive force between the first magnet (14) and the second magnet (15) is larger than the sum of the gravity of the plug (17) and the elastic restoring force of the second return spring (16), wheels are fixedly arranged at the bottom end of the second magnet (15), and a tapered funnel (19) is fixedly arranged at the bottom of the feeding barrel (18).

7. The metal powder injection molding system according to claim 6, wherein an arc chute is reserved at the top end of the blanking sliding plate (20), a sliding hole matched with the outer diameter of the top stay bar is formed at the bottom of the arc chute, and the top end of the blanking sliding plate (20) is positioned right below the conical hopper (19).

8. The metal powder injection molding system according to claim 1, wherein a reduction motor (21) is fixed on the top outer wall of the sliding upper bin (24) obliquely above the mold groove (30), a vertical transmission rod (40) is fixed at the top end of an output shaft of the reduction motor (21), a windmill scraper (25) is fixed at the bottom end of the transmission rod (40), the lower surface of the windmill scraper (25) is flush with the lower surface of the sliding upper bin (24), and a partition plate (42) is fixed on the bottom inner wall of the sliding upper bin (24).

9. A metal powder injection molding system according to claim 8, wherein a rubber strip (41) is fixed to the bottom end of the vertical side plate of the advancing end of the slide upper hopper (24), and the lower surface of the rubber strip (41) is closely attached to the bottom of the polishing chute (26).