An automatic feeding and shaping system for metal powder injection molding parts

Abstract

The present invention relates to an automatic feeding and shaping system for metal powder injection molding parts, which comprises: a material screening mechanism, which arranges the metal powder injection molding parts to be shaped in a uniform, orderly and directional manner; a material conveying mechanism, which is connected to the material outlet of the material screening mechanism, and the material screening mechanism conveys the neatly arranged metal powder injection molding parts to the material conveying mechanism; a shaping mold mechanism, which is connected to the material conveying mechanism, and the material conveying mechanism conveys the metal powder injection molding parts to the shaping mold mechanism for shaping; a material ejecting mechanism, which positions the metal powder injection molding parts to be shaped that are conveyed to the shaping mold mechanism by the material conveying mechanism; and a controller, which is respectively connected to the material screening mechanism, the material conveying mechanism, the shaping mold mechanism and the material ejecting mechanism. The present invention improves production efficiency and reduces labor use costs.

Description

Technical Field

[0001] The invention relates to a shaping structure of a metal powder injection molded part, in particular to an automatic feeding and shaping system for a metal powder injection molded part. Background Art

[0002] During the sintering process, metal powder injection molded parts are affected by the inconsistency of shrinkage and uneven furnace radiation temperature, resulting in micro-deformation (the sintering process is the residual binder components in the metal powder injection molded products are cracked into gas during the heating process). At high temperatures close to the melting point of the metal, metal atoms will migrate between different powder particles, resulting in sintering, making the original loose powder accumulation dense, and the volume of the parts after sintering becomes smaller and the strength becomes higher; the volume of the sintered product becomes smaller, which will cause the size to become smaller, that is, linear shrinkage. The structure of the product, uneven thickness, the state of the product placement during sintering, the temperature uniformity in the furnace, and a series of other reasons will cause the product to undergo micro-deformations such as bending, warping, and collapse.

[0003] For slightly deformed products, mold shaping (i.e. cold extrusion) is generally used for correction; the traditional shaping method is to manually place the product into the shaping mold, and the mold is pressed up and down on a hydraulic press to improve the product size.

[0004] The above shaping method has the following problems:

[0005] (1) Low efficiency and high labor costs;

[0006] (2) Low security. Summary of the invention

[0007] In view of the deficiencies in the prior art, the object of the present invention is to provide an automatic feeding and shaping system for metal powder injection molding parts.

[0008] The above-mentioned object of the present invention is achieved through the following technical solutions:

[0009] An automatic feeding and shaping system for metal powder injection molding parts, characterized in that the automatic feeding and shaping system for metal powder injection molding parts comprises:

[0010] A screening mechanism, which arranges the metal powder injection molding parts to be shaped uniformly, orderly and neatly;

[0011] A material transport mechanism, wherein the material transport mechanism is connected to a material outlet of the material screening mechanism, and the material screening mechanism transports neatly arranged metal powder injection molded parts to the material transport mechanism;

[0012] A shaping mold mechanism, wherein the shaping mold mechanism is connected to a material transport mechanism, and the material transport mechanism transports the metal powder injection molded parts into the shaping mold mechanism for shaping;

[0013] A material ejection mechanism, which positions the metal powder injection molded parts to be shaped that are transported by the material transport mechanism to the shaping mold mechanism;

[0014] A controller is respectively connected to the material screening mechanism, the material transporting mechanism, the shaping mold mechanism and the material ejecting mechanism.

[0015] By adopting the above technical solution, automatic feeding and shaping can be achieved without manual operation, which improves work efficiency, reduces labor costs, and also improves safety.

[0016] In a preferred example, the present invention can be further configured as follows: the screening mechanism includes a base and a hopper, the base is provided with a vibration structure, the hopper is arranged on the vibration structure, a spiral track is provided in the hopper, and the spiral track is connected to the material transport mechanism.

[0017] By adopting the above technical solution, the metal powder injection molding parts in the hopper can be uniformly, orderly, directional and neatly arranged and transported to the material transport mechanism.

[0018] In a preferred example, the present invention can be further configured as follows: four support rods are provided at the bottom end of the base, and a truncated cone-shaped support block is provided at the bottom end of each support rod.

[0019] By adopting the above technical solution, the stability of the screening mechanism during operation can be improved, and the vibration structure can be prevented from causing the base to shake.

[0020] In a preferred example, the present invention can be further configured as follows: the material transport mechanism includes a support frame and a conveyor belt, the support frame is arranged on a base and is located on one side of the hopper, the conveyor belt is arranged on the support frame, and the conveyor belt is connected with a spiral track to transport the metal powder injection molding parts to be shaped transported by the spiral track to the shaping mold mechanism.

[0021] In a preferred example, the present invention can be further configured as follows: the material transport mechanism also includes a pushing cylinder, a pushing block and a receiving block, the pushing cylinder is provided with a slide plate, the pushing block and the receiving block are arranged on the slide plate, the receiving block is located at one end of the pushing block, and cooperates with the end of the conveyor belt away from the spiral track, the metal powder injection molding parts to be shaped on the conveyor belt can fall onto the receiving block, the pushing block contacts with the end of the conveyor belt away from the spiral track, and when the pushing block contacts with the end of the conveyor belt away from the spiral track, the pushing block can limit the metal powder injection molding parts to be shaped on the conveyor belt.

[0022] By adopting the above technical solution, the metal powder injection molded parts on the conveyor belt can be accurately positioned in batches, ensuring that the shaping mold mechanism can be shaped in batches without stopping the conveyor belt.

[0023] In a preferred example, the present invention can be further configured as follows: the shaping mold mechanism includes a workbench, a shaping lower mold, a shaping upper mold and a material shifting structure; the shaping lower mold and the pushing cylinder are arranged on the workbench; the material shifting structure can be movably arranged on the shaping lower mold; the material shifting structure can move the metal powder injection molding parts to be shaped on the receiving block to the shaping position of the shaping lower mold; the shaping upper mold cooperates with the shaping lower mold to shape the metal powder injection molding parts to be shaped moved by the material shifting structure.

[0024] By adopting the above technical solution, the metal powder injection molded parts after precise positioning can be accurately moved to the shaping part of the shaping lower die, thereby improving the shaping accuracy.

[0025] In a preferred example, the present invention can be further configured as follows: a slide rail and a material stop block are provided on the shaping lower die, the material stop block and the conveyor belt are located on the same horizontal line, the slide rail is located on one side of the material stop block, the material moving structure is a slider, the slider is movably arranged on the slide rail, a plurality of first baffles are vertically provided on the slider, a first limiting groove is formed between each adjacent two first baffles, and a metal powder injection molding part to be shaped can be placed in each first limiting groove.

[0026] By adopting the above technical solution, the stability of the metal powder injection molding parts during movement is ensured, and the structure of the material transfer structure is made very simple, thereby reducing costs.

[0027] In a preferred example, the present invention can be further configured as follows: the ejection mechanism includes a horizontal cylinder, a first limit plate, a vertical cylinder and a second limit plate, the horizontal cylinder is arranged on the workbench, and drives the first limit plate to move horizontally, the vertical cylinder is arranged on the first limit plate, and drives the second limit plate to move vertically, the first limit plate is in contact with both ends of the slider, the slider is provided with a first moving section, the first baffle is arranged on the first moving section, and the second limit plate can contact with the first moving section.

[0028] By adopting the above technical solution, the metal powder injection molded parts can be positioned during shaping, thereby further improving the shaping accuracy.

[0029] In a preferred example, the present invention can be further configured as follows: a second movable section is provided on the slider, a plurality of second baffles are provided on the second movable section, a second limiting groove is formed between every two adjacent second baffles, a shaped metal powder injection molding part can be placed in each second limiting groove, the second limiting plate can contact the second movable section, and a discharge track is connected to the shaping lower mold.

[0030] By adopting the above technical solution, the metal powder injection molding parts after shaping can be automatically discharged, thereby improving work efficiency.

[0031] In a preferred example, the present invention can be further configured as follows: a plurality of grating probes are provided on the support frame, and these grating probes are respectively connected to the controller.

[0032] By adopting the above technical solution, the metal powder injection molded parts moving on the conveyor belt can be monitored in real time to prevent the metal powder injection molded parts from moving on the conveyor belt and changing their positions, thereby affecting subsequent shaping.

[0033] In summary, the present invention includes at least one of the following beneficial technical effects:

[0034] (1) Improve production efficiency;

[0035] (2) Reduce labor costs;

[0036] (3) Improve shaping accuracy;

[0037] (4) Improve security. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a front view of the present invention;

[0039] Figure 2 A top view of the present invention;

[0040] Figure 3 It is a schematic diagram of the structure of the pushing cylinder, the pushing block and the receiving block;

[0041] Figure 4 It is a structural schematic diagram of the material transfer structure;

[0042] Figure 5 It is the control principle diagram of the present invention.

[0043] Reference numerals: 100, screening mechanism; 110, base; 111, vibration structure; 112, support rod; 113, support block; 120, hopper; 121, spiral track; 200, material transport mechanism; 210, support frame; 211, strip block; 212, grating probe; 220, conveyor belt; 230, push cylinder; 231, slide plate; 240, push block; 250, receiving block; 300, shaping mold mechanism; 310, workbench; 320, Shaping lower die; 321, material blocking block; 330, shaping upper die; 340, material shifting structure; 341, first baffle plate; 342, first limiting groove; 343, first moving section; 344, second moving end; 345, second baffle plate; 346, second limiting groove; 400, material ejecting mechanism; 410, horizontal cylinder; 420, first limiting plate; 421, connecting rod; 430, vertical cylinder; 440, second limiting plate; 500, controller; 600, discharge track. DETAILED DESCRIPTION

[0044] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0045] See also Figure 1 and Figure 5 The automatic feeding and shaping system for metal powder injection molding parts provided by the present invention includes a material screening mechanism 100, a material transporting mechanism 200, a shaping mold mechanism 300, a material ejecting mechanism 400 and a controller 500.

[0046] See also Figure 1 and Figure 2 The screening mechanism 100 is used to store the metal powder injection molding parts to be shaped and to arrange the metal powder injection molding parts to be shaped in a uniform, orderly and directional manner, so as to facilitate the transportation of the material transport mechanism 200.

[0047] The screening mechanism 100 specifically includes a base 110 and a hopper 120 .

[0048] The base 110 is specifically a rectangular frame, on which a vibration structure 111 is provided, and a hopper 120 is arranged on the vibration structure 111. The hopper 120 can vibrate along with the vibration structure 111, and the metal powder injection molded parts to be shaped can be placed in the hopper 120. A spiral track 121 is provided in the hopper 120. When the hopper 120 vibrates, the metal powder injection molded parts to be shaped in the hopper 120 can rise along the spiral track 121, thereby being transported to the material transport mechanism 200.

[0049] Since the metal powder injection molded parts to be shaped rise along the spiral track 121 , the metal powder injection molded parts to be shaped can be arranged in an orderly manner.

[0050] The vibration structure 111 may be an existing structure, including a vibration disk and a pulse electromagnet. The vibration disk is arranged on the base 110, and the pulse electromagnet is arranged on the bottom surface of the hopper 120. After the vibration disk is powered on, the pulse electromagnet can make the hopper 120 vibrate vertically and torsionally.

[0051] In addition, four support rods 112 are provided at the bottom of the base 110, and a truncated cone-shaped support block 113 is provided at the bottom of each support rod 112. The support block 113 is in contact with the ground to improve the stability of the base 110 and prevent the vibration structure 111 from causing the base 110 to shake.

[0052] The support block 113 may specifically be a suction cup structure, which can further improve the stability of the base 110 .

[0053] In addition, the support rod 112 may be a telescopic structure, which makes it easy to adjust the height of the base 110.

[0054] See also Figure 1 and Figure 3 The material transport mechanism 200 is connected with the screening mechanism 100 and is used to transport the metal powder injection molding parts to be shaped transported by the screening mechanism 100 to the shaping mold mechanism 300 for shaping.

[0055] The material transport mechanism 200 specifically includes a support frame 210 and a conveyor belt 220 .

[0056] The support frame 210 is disposed on the base 110 and located at the hopper 120 , and is used to support the conveyor belt 220 to facilitate the conveyor belt 220 to transport materials.

[0057] The conveyor belt 220 is used to transport the metal powder injection molding parts to be shaped delivered by the screening mechanism 100 to the shaping mold mechanism 300. One end of the conveyor belt 220 corresponds to the discharge port of the spiral track 121 on the hopper 120. The metal powder injection molding parts to be shaped coming out of the spiral track 121 can directly fall onto the conveyor belt 220.

[0058] The conveyor belt 220 is an existing structure, and can be moved by a motor driving a gear to drive a chain.

[0059] In addition, a strip block 211 may be provided on the support frame 210. The strip block 211 is located on one side of the conveyor belt 220 and can be used to limit the metal powder injection molding parts to be shaped on the conveyor belt 220 to improve the stability of the conveyor belt 220 in transporting materials.

[0060] Furthermore, a retractable support rod may be provided at the bottom of the support frame 210, so that the height of the support frame 210 can be adjusted, so that the conveyor belt 220 can be matched with hoppers 120 of various heights, thereby increasing the scope of use.

[0061] See also Figure 1 and Figure 5 Furthermore, a plurality of grating probes 212 may be provided on the support frame 210, and these grating probes 212 are respectively connected to the controller 500. The grating probes 212 can capture the positions of the metal powder injection molded parts to be shaped on the conveyor belt 220, and send the captured position information to the controller 500. When the position information sent by the grating probe 212 is incorrect, the controller 500 may sound an alarm through an alarm and stop the conveyor belt 220. At this time, the worker will correct the positions of the metal powder injection molded parts to be shaped on the conveyor belt 220.

[0062] In this way, the grating probe 212 can be used to monitor the metal powder injection molded parts moving on the conveyor belt 220 in real time to prevent the metal powder injection molded parts from changing their positions when moving on the conveyor belt 200, thereby affecting subsequent shaping.

[0063] See also Figure 1 and Figure 3 The material transport mechanism 200 may further include a material pushing cylinder 230 , a material pushing block 240 and a material receiving block 250 .

[0064] The pushing cylinder 230 is located at the other end of the conveyor belt 220, and can be specifically installed on the shaping mold mechanism 300. A slide plate 231 is provided on the pushing cylinder 230, and the pushing block 240 and the receiving block 250 are respectively arranged on the slide plate 231. When the pushing cylinder 230 is working, the pushing block 240 and the receiving block 250 can be pushed by the slide plate 231 to move horizontally.

[0065] The receiving block 250 may be rectangular in shape and flush with the conveyor belt 220 in height. The receiving block 250 may be horizontally connected to the end of the conveyor belt 220 when moving, so that the metal powder injection molding parts to be shaped on the conveyor belt 220 may be directly moved to the upper surface of the receiving block 250 .

[0066] The push block 240 is arranged on one side of the receiving block 250 and is fixed by welding. Its height is higher than the conveyor belt 220. When it moves, it can also contact the end of the conveyor belt 220. Moreover, when the push block 240 contacts the end of the conveyor belt 220, since its height is higher than the conveyor belt 220, it can block the metal powder injection molding parts to be shaped moving on the conveyor belt 220, thereby limiting the position.

[0067] By setting the above structure, the metal powder injection molding parts to be shaped on the conveyor belt 220 can be conveyed to the shaping mold mechanism 300 in batches, so that the shaping mold mechanism 300 can shape multiple metal powder injection molding parts to be shaped at the same time.

[0068] In addition, through the arrangement of the above structure, it can be ensured that the conveyor belt 220 can be shaped in batches without stopping work, and the structure is very simple, which not only improves work efficiency but also reduces costs.

[0069] The shaping mold mechanism 300 is used to shape the metal powder injection molding parts to be shaped that are conveyed by the material conveying mechanism 200.

[0070] The shaping mold mechanism 300 specifically includes a workbench 310 , a shaping lower mold 320 , a shaping upper mold 330 and a material transfer structure 340 .

[0071] The workbench 310 is used to install the shaping lower die 320 , the shaping upper die 330 , the material moving structure 340 , the material pushing cylinder 230 , and the hydraulic structure for driving the shaping lower die 320 and the shaping upper die 330 .

[0072] The shaping lower die 320 and the shaping upper die 330 are driven by a hydraulic structure to perform mold closing and mold separation, thereby shaping the metal powder injection molded parts.

[0073] The above-mentioned shaping lower die 320, shaping upper die 330 and hydraulic structure are prior arts, so their specific structures are not described in detail here.

[0074] See also Figure 1 and Figure 4 The material moving structure 340 is arranged on the shaping lower die 320. Specifically, a slide rail can be arranged on the shaping lower die 320, and it can be movably arranged on the slide rail. It is used to accurately move the metal powder injection molding parts to be shaped on the receiving block 250 to the shaping part of the shaping lower die 320, so as to improve the shaping accuracy.

[0075] The material moving structure 340 is specifically a slider, which is movably arranged on the slide rail. A plurality of first baffles 341 are vertically arranged on the slider, and a first limiting groove 342 is formed between each two adjacent first baffles 341. A metal powder injection molding part to be shaped can be placed in each first limiting groove 342.

[0076] In this way, each metal powder injection molded part to be shaped on the docking block 250 can be positioned respectively through each first limiting groove 342 on the slider, and then the slider moves on the slide rail to accurately move the metal powder injection molded part to be shaped to the shaping position of the shaping lower mold 320.

[0077] In addition, a bar-shaped stop block 321 may be provided on the shaping lower mold 320. The stop block 321 is located on the same horizontal line as the conveyor belt 220, and the stop block 321 is located on one side of the slide rail. When the slider drives the metal powder injection molded part to move, the first baffle plate 341 may contact the stop block 321, thereby limiting the metal powder injection molded part in the first limiting groove 342, so that the metal powder injection molded part cannot move in the first limiting groove 342, thereby improving the shaping accuracy.

[0078] The ejector mechanism 400 is used to position the metal powder injection molded parts in the shaping mold mechanism 300, thereby improving the shaping accuracy.

[0079] The ejecting mechanism 400 specifically includes a horizontal cylinder 410 , a first limiting plate 420 , a vertical cylinder 430 and a second limiting plate 440 .

[0080] The horizontal cylinder 410 is disposed on the workbench 310 and drives the first limit plate 420 to move horizontally. The vertical cylinder 430 is disposed on the first limit plate 420 and drives the second limit plate 440 to move vertically.

[0081] Connecting rods 421 extend from both sides of the first limiting plate 420. The two connecting rods 421 are in contact with both ends of the slider respectively. In this way, when the first limiting plate 420 is driven to move by the horizontal cylinder 410, the slider can be driven to move on the slide rail, thereby realizing material transfer.

[0082] A movable first moving section 343 may be provided on the slider, and a first baffle 341 is arranged on the first moving section 343. The second limiting plate 440 can contact the first moving section 343 when moving vertically, and push the first moving section 343 to move. When the first moving section 343 moves, each first baffle 341 thereon can be correspondingly inserted into the gap between two adjacent metal powder injection molded parts to be shaped on the receiving block 250, so that each metal powder injection molded part is correspondingly located in a first limiting groove 342.

[0083] When the slider moves on the slide rail and moves the metal powder injection molded part to be shaped in the first limiting groove 342 to the shaping position of the shaping lower mold 320, the first moving section 343 is supported by the second limiting plate 440, so that the metal powder injection molded part can be positioned, thereby improving the shaping accuracy.

[0084] In addition, a movable second moving end 344 is provided on the slider, and a plurality of second baffles 345 are provided on the second moving section 344. A second limiting groove 346 is formed between each two adjacent second baffles 345, and a shaped metal powder injection molded part can be placed in each second limiting groove 346.

[0085] When the second limiting plate 440 moves vertically and contacts the first moving section 343, it will also contact the second moving section 344 and push the second moving section 344 to move. When the second moving section 344 moves, the second baffle 345 can be correspondingly inserted into the gap between two adjacent shaped metal powder injection molded parts on the shaping lower mold 320, so that each metal powder injection molded part is correspondingly located in a second limiting groove 346. A discharge track 600 is connected to the shaping lower mold 320. When the slider continues to move, the shaped metal powder injection molded parts in the second limiting groove 346 can be dropped onto the discharge track 600 and discharged through the discharge track 600.

[0086] See also Figure 5 , a controller 500, which is respectively connected to the screening mechanism 100, the material transporting mechanism 200, the shaping mold mechanism 300 and the material pushing mechanism 400. The staff can control the screening mechanism 100, the material transporting mechanism 200, the shaping mold mechanism 300 and the material pushing mechanism 400 through the controller 500, thereby realizing automated work.

[0087] In addition, the control program can be directly set in the controller 500, so that automatic operation can be achieved by simply turning on the controller 500, which is very convenient.

[0088] The following is the specific working process of this application:

[0089] The screening mechanism 100 first stores the metal powder injection molding parts to be shaped in a unified manner. When shaping is required, the screening mechanism 100 works to convey the metal powder injection molding parts to be shaped to the conveyor belt 220. The conveyor belt 220 then conveys the metal powder injection molding parts to be shaped to the shaping mold mechanism 300. During the conveying, the position of the metal powder injection molding parts to be shaped is monitored in real time by the grating probe 212. When the position of the metal powder injection molding parts is wrong, the conveyor belt 220 is suspended.

[0090] The conveyor belt 220 transports the materials to the receiving block 250 in batches, and the second limiting plate 440 works to limit the first moving section 343 to the metal powder injection molding parts to be shaped on the receiving block 250, and then moves the slider to move the first moving section 343 to the shaping position on the shaping lower mold 320, and then performs shaping;

[0091] When the slider moves, when the first moving section 343 moves to the shaping position on the shaping lower die 320, the second moving section 344 can move the shaped metal powder injection molded parts on the previous batch of shaping lower die 320 to the discharge track 600 for discharge.

[0092] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic feeding and shaping system for metal powder injection molding parts, characterized in that: The automatic feeding and shaping system for metal powder injection molding parts comprises: A screening mechanism (100), wherein the screening mechanism (100) arranges the metal powder injection molded parts to be shaped in a uniform, orderly and directional manner; A material transport mechanism (200), wherein the material transport mechanism (200) is connected to a material outlet of the material screening mechanism (100), and the material screening mechanism (100) transports neatly arranged metal powder injection molded parts to the material transport mechanism (200); A shaping mold mechanism (300), wherein the shaping mold mechanism (300) is connected to a material transport mechanism (200), and the material transport mechanism (200) transports metal powder injection molded parts into the shaping mold mechanism (300) for shaping; A material ejection mechanism (400), wherein the material ejection mechanism (400) positions the metal powder injection molded part to be shaped that is transported by the material transport mechanism (200) to the shaping mold mechanism (300); A controller (500), wherein the controller (500) is respectively connected to the material screening mechanism (100), the material transporting mechanism (200), the shaping mold mechanism (300) and the material pushing mechanism (400); The screening mechanism (100) comprises a base (110) and a hopper (120); a vibration structure (111) is provided on the base (110); the hopper (120) is arranged on the vibration structure (111); a spiral track (121) is provided in the hopper (120); and the spiral track (121) is connected to the material transport mechanism (200); The bottom end of the base (110) is provided with four support rods (112), and the bottom end of each support rod (112) is provided with a truncated cone-shaped support block (113); The material transport mechanism (200) comprises a support frame (210) and a conveyor belt (220); the support frame (210) is arranged on the base (110) and is located on one side of the hopper (120); the conveyor belt (220) is arranged on the support frame (210); the conveyor belt (220) is connected with the spiral track (121) to transport the metal powder injection molding parts to be shaped transported by the spiral track (121) to the shaping mold mechanism (300); The material transport mechanism (200) further comprises a material pushing cylinder (230), a material pushing block (240) and a material receiving block (250); the material pushing cylinder (230) is provided with a slide plate (231); the material pushing block (240) and the material receiving block (250) are arranged on the slide plate (231); the material receiving block (250) is located at one end of the material pushing block (240) and cooperates with one end of the conveyor belt (220) away from the spiral track (121) to convey the material. The metal powder injection molded parts to be shaped on the belt (220) can fall onto the receiving block (250), and the pushing block (240) contacts the end of the conveyor belt (220) away from the spiral track (121), and when the pushing block (240) contacts the end of the conveyor belt (220) away from the spiral track (121), the pushing block (240) can limit the metal powder injection molded parts to be shaped on the conveyor belt (220); A plurality of grating probes (212) are arranged on the support frame (210), and the grating probes (212) are respectively connected to the controller (500).

2. The automatic feeding and shaping system for metal powder injection molding parts according to claim 1 is characterized in that: The shaping mold mechanism (300) comprises a workbench (310), a shaping lower mold (320), a shaping upper mold (330) and a material transfer structure (340). The shaping lower mold (320) and the push cylinder (230) are arranged on the workbench (310). The material transfer structure (340) is movably arranged on the shaping lower mold (320). The material transfer structure (340) can move the metal powder injection molded parts to be shaped on the receiving block (250) to the shaping position of the shaping lower mold (320). The shaping upper mold (330) cooperates with the shaping lower mold (320) to shape the metal powder injection molded parts to be shaped moved by the material transfer structure (340).

3. The automatic feeding and shaping system for metal powder injection molding parts according to claim 2 is characterized in that: The shaping lower die (320) is provided with a slide rail and a material stopper (321), the material stopper (321) and the conveyor belt (220) are located on the same horizontal line, the slide rail is located on one side of the material stopper (321), the material transfer structure (340) is a slider, the slider is movably arranged on the slide rail, a plurality of first baffles (341) are vertically arranged on the slider, a first limiting groove (342) is formed between every two adjacent first baffles (341), and a metal powder injection molding part to be shaped can be placed in each first limiting groove (342).

4. The automatic feeding and shaping system for metal powder injection molding parts according to claim 3 is characterized in that: The ejection mechanism (400) comprises a horizontal cylinder (410), a first limiting plate (420), a vertical cylinder (430) and a second limiting plate (440); the horizontal cylinder (410) is arranged on the workbench (310) and drives the first limiting plate (420) to move horizontally; the vertical cylinder (430) is arranged on the first limiting plate (420) and drives the second limiting plate (440) to move vertically; the first limiting plate (420) contacts both ends of the slider; a first moving section (343) is arranged on the slider; the first baffle plate (341) is arranged on the first moving section (343); and the second limiting plate (440) can contact the first moving section (343).

5. The automatic feeding and shaping system for metal powder injection molding parts according to claim 4 is characterized in that: The slider is provided with a second moving section, the second moving section is provided with a plurality of second baffles (345), a second limiting groove (346) is formed between every two adjacent second baffles (345), a shaped metal powder injection molding part can be placed in each second limiting groove (346), the second limiting plate (440) can contact the second moving section, and the shaping lower mold (320) is connected to a discharge track (600).

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