Mixer for manufacturing powder metallurgy parts

Abstract

The invention relates to a blender mixer for manufacturing powder metallurgy parts, which comprises a main frame of the blender mixer, a double-cone mixing mechanism is arranged in the main frame, the double-cone mixing mechanism comprises a hybrid drive base fixed in the main frame, a vertical double-cone mixing cylinder is arranged in the hybrid drive base, a conveying hopper is arranged above the double-cone mixing cylinder, and the double-cone mixing cylinder is arranged above the conveying hopper. The conveying hopper is fixedly connected to the top of the main rack through a conveying hopper support, and an equant feeding mechanism opposite to the conveying hopper is arranged at the top of the main rack on the right side of the conveying hopper. The equant feeding mechanism comprises a base fixedly connected to the top of the main rack, the base comprises a cylindrical supporting seat, a fixed cylinder seat is fixedly connected to the supporting seat, the fixed cylinder seat comprises a shell seat, a movable storage assembly is pivoted in the shell seat, and a rotary driving assembly connected with the movable storage assembly is arranged on the supporting seat. The raw material equally-dividing feeding mechanism is arranged in the mixer, so that the raw materials can be equally divided, subsequent uniform mixing is facilitated, and meanwhile, redundant raw materials are convenient to recycle.

Description

Technical field:

[0001] The invention relates to the technical field of mixers, and more particularly to a mixer for manufacturing powder metallurgy parts. Background technology:

[0002] At present, powder metallurgy is a process technology for preparing metal powder or using metal powder (or a mixture of metal powder and non-metallic powder) as raw materials, forming and sintering, to manufacture metal materials, composite materials and various types of products. Mixing is an important process in the production of parts by powder metallurgy. At present, mixing is carried out in a conventional mixer, which generally determines the proportion of each raw material by weighing or volume control, and then pours each proportion of raw materials into the mixing barrel of the mixer, and the raw materials are mixed together by rotating the mixing barrel; but in the mixing process, the proportion of some raw materials is much greater than the mixing of its raw materials, and the mixing effect during the mixing process is not good. Then, some people propose to divide each raw material into equal parts, and multiple portions of raw materials can exist in multiple equal parts, and then all equal parts of each raw material are input into the mixing barrel for mixing. After the mixing is completed, the other excess equal parts of raw materials are added to the mixture one by one, which can improve the uniformity of the mixing effect. Therefore, it is necessary to design a feeding structure that realizes the equal division of raw materials, and at the same time, it is necessary to design a corresponding return material structure to facilitate the feeding operation. Summary of the invention:

[0003] The purpose of the present invention is to address the deficiencies of the prior art and to provide a mixer for manufacturing powder metallurgy parts. The mixer is provided with a raw material equal feeding mechanism, which can achieve equal division of the raw materials, is conducive to subsequent uniform mixing, and convenient recovery of excess raw materials.

[0004] A mixer for manufacturing powder metallurgy parts, comprising a main frame of the mixer, a double-cone mixing mechanism arranged in the main frame, the double-cone mixing mechanism comprising a mixing drive base fixed in the main frame, a vertical double-cone mixing barrel arranged in the mixing drive base, a conveying bucket arranged above the double-cone mixing barrel, the conveying bucket fixedly connected to the top of the main frame through a conveying bucket bracket, and an equal distribution feeding mechanism opposite to the conveying bucket arranged on the top of the main frame on the right side of the conveying bucket;

[0005] The equal-dividing feeding mechanism comprises a base fixedly connected to the top of the main frame, the base comprises a cylindrical support seat, the upper and lower ends of the support seat are respectively formed with connecting plates, a fixed cylinder seat is fixedly connected to the connecting plate at the upper end of the support seat, the fixed cylinder seat comprises a cylindrical outer shell seat, the upper end of the outer shell seat is fixedly connected to a cover plate, a dynamic storage assembly is pivotally connected in the outer shell seat, and a rotating drive assembly connected to the dynamic storage assembly is provided on the support seat;

[0006] The dynamic storage component includes a circular ring-shaped chassis, a plurality of vertical equally divided storage tubes are plugged and fixed on the chassis near the outer ring of the chassis, a circular ring-shaped wear-resistant sleeve is fixed on the lower end surface of the equally divided storage tube, and the lower end of the wear-resistant sleeve extends out of the chassis and abuts against the inner bottom surface of the outer shell seat; a graphite copper ring is fixed to the outer ring of the chassis, and the outer wall of the graphite copper ring abuts against the inner wall of the outer shell seat; a conical guide hopper is fixed to the upper sleeve of the equally divided storage tube, and a vertical tubular return port is formed in the middle of the guide hopper; a material removal rod is plugged and fixed in the outer shell seat above the guide hopper, and the material removal rod abuts against the upper end surface of the equally divided storage tube;

[0007] The rotary drive assembly includes an inner gear ring plugged and fixed in the middle of the chassis, a gear is meshed on the left side of the inner gear ring, the gear sleeve is fixed to the vertical transmission shaft, the transmission shaft is pivoted in the support seat through the bearing seat, the lower end of the transmission shaft is fixedly connected to the rotating shaft of the servo motor through a coupling, and the servo motor is fixedly connected to the support seat;

[0008] The lower end surfaces on the left and right sides of the shell seat are respectively formed with valve ports, and the left and right sides of the shell seat are respectively provided with a feed valve and a return valve opposite to the valve ports, and the feed valve and the return valve both include a valve plate, and the valve plate includes a horizontal sealing plate and a vertical connecting plate, and the sealing plates of the valve plate are respectively inserted into the valve ports on both sides of the shell seat, and a horizontal cylinder is fixedly connected to the connecting plate of the valve plate, and the piston rod of the cylinder passes through the valve plate and is fixedly connected to the outer walls on both sides of the shell seat; a horizontal guide rod is inserted on the valve plate on the upper side of the cylinder, and the guide rod is respectively fixedly connected to the outer walls on both sides of the shell seat;

[0009] A left guide pipe and a right discharge pipe facing the valve port on the outer shell seat are respectively fixedly connected on the connecting plate at the upper end of the support seat, and the lower end of the left guide pipe is inserted in the inlet of the conveying bucket; the lower end of the right discharge pipe is fixedly connected with an inclined return pipe, and the return pipe is fixedly connected and fixed on the support seat, and the upper end of the return pipe is bent to form a vertical receiving pipe, and the upper end of the receiving pipe passes through the inner gear ring and is located directly below the return port on the guide bucket; a feed port facing the equally divided storage tube is formed on the right side of the cover plate, and a material hopper is provided above the feed port, and a vertical supply pipe is formed at the lower end of the material hopper, and the supply pipe faces the feed port of the cover plate and rests against the cover plate; the material hopper is fixedly connected to the top of the main frame through a hopper mounting bracket.

[0010] Preferably, the main frame is rectangular, and wheels are fixedly connected to the four corners of the lower end surface of the main frame.

[0011] Preferably, a mounting platform is provided below the support seat, the mounting platform is fixedly connected to the main frame, and guide columns are respectively plugged into the connecting plates at the lower end of the support seat, and the lower ends of the guide columns are fixedly connected to the mounting platform. Shock-absorbing springs are inserted and sleeved on the guide columns, and the two ends of the shock-absorbing springs are respectively pressed against the support seat and the mounting platform; a plurality of vibration motors are fixedly connected to the connecting plates at the lower end of the support seat,

[0012] There are at least three guide posts, at least two groups of vibration motors are provided, and the guide posts and the vibration motors are evenly distributed in a ring shape around the central axis of the support seat.

[0013] Preferably, the central axis of the upper outer shell seat of the equal-dividing feeding mechanism, the central axis of the chassis, the central axis of the guide bucket, the central axis of the graphite copper ring and the central axis of the inner gear ring are on the same straight line.

[0014] Preferably, the aliquot storage tubes are provided in at least six groups, and the aliquot storage tubes are evenly distributed in a ring shape around the central axis of the chassis;

[0015] The inner tube diameter of the equally divided storage tube is larger than the inner tube diameter of the feed tube on the hopper, and smaller than the inner tube diameter of the upper end of the left guide tube and the inner tube diameter of the upper end of the right discharge tube; the inner tube wall of the equally divided storage tube coincides with the inner tube wall of the wear-resistant sleeve.

[0016] Preferably, the upper end surface of the material moving rod abuts against the cover plate;

[0017] An opening is formed on the support seat, and a horizontal support plate is formed by bending the upper side of the opening. The servo motor is inserted into the opening of the support seat and fixed on the support plate by bolts.

[0018] Preferably, the hopper mounting bracket comprises a support plate which is fixed on the feed pipe by inserting and sleeve, and a plurality of columns are respectively inserted and fixed on the front and rear sides of the support plate, and the lower ends of the columns are respectively fixed on the main frame on the front and rear sides of the equal-dividing feed mechanism;

[0019] The feed pipe is provided with a feed valve.

[0020] Preferably, valves are provided at both ends of the double-cone mixing barrel, and the diameter of the valve opening at one end of the double-cone mixing barrel is larger than the diameter of the lower end of the conveying bucket.

[0021] The beneficial effects of the present invention are:

[0022] The mixer is provided with a raw material equal distribution feeding mechanism, which can realize equal distribution of raw materials, is conducive to subsequent uniform mixing, and at the same time, the excess raw materials are conveniently recovered. Description of the drawings:

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a schematic diagram of a partial three-dimensional structure of the equal-dividing feeding mechanism in the present invention;

[0025] Figure 3 It is a side view structural schematic diagram of the internal equal-dividing feeding mechanism of the present invention;

[0026] Figure 4It is a cross-sectional schematic diagram of the front view of the internal equal-division feeding mechanism of the present invention.

[0027] In the figure: 1. main frame; 2. double-cone mixing mechanism; 21. double-cone mixing barrel; 3. conveying bucket; 4. equal-dividing feeding mechanism; 41. base; 42. fixed barrel seat; 43. dynamic storage assembly; 44. hopper; 45. feed valve; 46. return valve; 47. return pipe; 48. rotary drive assembly; 49. left guide pipe; 410. right discharge pipe; 5. hopper mounting bracket; 6. conveying bucket bracket; 7. wheels. Specific implementation method:

[0028] Example: See Figures 1 to 4 As shown, a mixer for manufacturing powder metallurgy parts includes a main frame 1 of the mixer, a double-cone mixing mechanism 2 is arranged in the main frame 1, the double-cone mixing mechanism 2 includes a mixing drive base fixed in the main frame 1, a vertical double-cone mixing barrel 21 is arranged in the mixing drive base, a conveying bucket 3 is arranged above the double-cone mixing barrel 21, the conveying bucket 3 is fixed to the top of the main frame 1 through a conveying bucket bracket 6, and an equal distribution feeding mechanism 4 opposite to the conveying bucket 3 is arranged on the top of the main frame 1 on the right side of the conveying bucket 3;

[0029] The equal-dividing feeding mechanism 4 includes a base 41 fixedly connected to the top of the main frame 1, the base 41 includes a cylindrical support seat 411, the upper and lower ends of the support seat 411 are respectively formed with connecting plates, a fixed cylinder seat 42 is fixedly connected to the connecting plate at the upper end of the support seat 411, and the fixed cylinder seat 42 includes a cylindrical outer shell seat 421, a cover plate 422 is fixedly connected to the upper end of the outer shell seat 421, and a dynamic storage component 43 is pivotally connected in the outer shell seat 421, and a rotating drive component 48 connected to the dynamic storage component 43 is provided on the support seat 411;

[0030] The dynamic storage component 43 includes a circular ring-shaped chassis 431, on which a plurality of vertical equally divided storage tubes 432 are plugged and fixed near the outer ring of the chassis 431, and a circular ring-shaped wear-resistant sleeve 433 is fixedly connected to the lower end surface of the equally divided storage tube 432, and the lower end of the wear-resistant sleeve 433 extends out of the chassis 431 and abuts against the inner bottom surface of the outer shell seat 421; a graphite copper ring 435 is fixedly connected to the outer ring of the chassis 431, and the outer wall of the graphite copper ring 435 abuts against the inner wall of the outer shell seat 421, and a conical flow guide hopper 434 is fixed to the upper sleeve of the equally divided storage tube 432, and a vertical tubular return port 4341 is formed in the middle of the flow guide hopper 434; a material removal rod 423 is plugged and fixed in the outer shell seat 421 above the flow guide hopper 434, and the material removal rod 423 abuts against the upper end surface of the equally divided storage tube 432;

[0031] The described rotary drive assembly 48 includes an internal gear ring 481 inserted and fixed in the middle of the chassis 431. A gear 482 is meshed on the left side of the internal gear ring 481. The gear 482 is inserted and sleeved on a vertical transmission shaft 483. The transmission shaft 483 is pivotally connected in the support base 411 through a bearing seat 484. The lower end of the transmission shaft 483 is fixedly connected to the rotating shaft of a servo motor 485 through a coupling 486. The servo motor 485 is fixedly connected to the support base 411;

[0032] On the lower end surfaces of the left and right sides of the housing base 421, valve ports are respectively formed. On the left and right sides of the housing base 421, a feed valve 45 and a return valve 46 opposite to the valve ports are respectively arranged. Both the feed valve 45 and the return valve 46 include an L-shaped valve plate a. The valve plate a includes a horizontal sealing plate and a vertical connecting plate. The sealing plates of the valve plate a are respectively inserted into the valve ports on both sides of the housing base 421. A horizontal air cylinder b is fixedly connected to the connecting plate of the valve plate a. The piston rod of the air cylinder b passes through the valve plate a and is fixedly connected to the outer walls on both sides of the housing base 421; A horizontal guide rod c is inserted into the valve plate a above the air cylinder b. The guide rod c is fixedly connected to the outer walls on both sides of the housing base 421;

[0033] On the connecting disk at the upper end of the support base 411, a left diversion pipe 49 and a right discharge pipe 410 opposite to the valve ports on the housing base 421 are respectively inserted and fixed. The lower end of the left diversion pipe 49 is inserted into the inlet of the conveying hopper 3; The lower end of the right discharge pipe 410 is fixedly connected to an inclined return pipe 47. The return pipe 47 is inserted and fixed on the support base 411. The upper end of the return pipe 47 is bent to form a vertical material receiving pipe 471. The upper end of the material receiving pipe 471 passes through the internal gear ring 481 and is located directly below the return port 4341 on the diversion hopper 434; On the right side of the cover plate 422, a feed port opposite to the equal - division storage pipe 432 is formed. Above the feed port, a material storage hopper 44 is provided. The lower end of the material storage hopper 44 is formed with a vertical feeding pipe 441. The feeding pipe 441 is opposite to the feed port on the cover plate 422 and abuts against the cover plate 422; The material storage hopper 44 is fixedly connected to the top of the main frame 1 through a hopper mounting bracket 5.

[0034] The described main frame 1 is rectangular. Wheels 7 are respectively fixedly connected to the four corners of the lower end surface of the main frame 1. Adding the wheels 7 facilitates the handling and movement of the mixer. All of its wheels 7 are brake - equipped wheels, and the wheels 7 need to be locked during mixing;

[0035] There is no bottom beam on the left side of the bottom of the main frame 1, that is, the bottom of the main frame 1 is in a "C" shape. The double - cone mixing cylinder 21 is far from the ground, and a receiving container can be placed below the double - cone mixing cylinder 21. When the mixed metallurgical powder after mixing is output from the double - cone mixing cylinder 21 and filled in the receiving container, it is convenient to take out the receiving container.

[0036] A mounting platform 412 is provided below the support seat 411, and the mounting platform 412 is fixedly connected to the main frame 1. T-shaped guide columns 413 are respectively inserted on the connecting disk at the lower end of the support seat 411, and the lower end of the guide column 413 is fixedly connected to the mounting platform 412. A shock-absorbing spring 414 is inserted on the guide column 413, and the two ends of the shock-absorbing spring 414 are respectively pressed against the support seat 411 and the mounting platform 412; a plurality of vibration motors 415 are fixedly connected to the connecting disk at the lower end of the support seat 411, and the vibration motor 415 can give vibration to the equal-dividing feeding mechanism 4, that is, to realize that the equal-dividing storage tube 432 is filled with powder raw materials and avoid the existence of gaps in the equal-dividing storage tube 432; at the same time, it is convenient for excess powder raw materials to slide on the guide bucket 434, the left guide tube 49, the right discharge pipe 410 and the return pipe 47.

[0037] There are at least three guide posts 413 , and at least two groups of vibration motors 415 . The guide posts 413 and the vibration motors 415 are evenly distributed in a ring shape around the central axis of the support base 411 .

[0038] The central axis of the outer shell seat 421 on the equal-dividing feeding mechanism 4, the central axis of the bottom plate 431, the central axis of the guide bucket 434, the central axis of the graphite copper ring 435 and the central axis of the inner gear ring 481 are on the same straight line.

[0039] The aliquot storage tubes 432 are provided with at least six groups, and the aliquot storage tubes 432 are evenly distributed in a ring shape around the central axis of the chassis 431; because some powder metallurgy raw materials are divided into multiple groups, multiple aliquots are provided to achieve more uniform mixing.

[0040] The inner tube diameter of the equally divided storage tube 432 is larger than the inner tube diameter of the feed tube 441 on the hopper 44, and smaller than the inner tube diameter of the upper end of the left guide tube 49 and the inner tube diameter of the upper end of the right discharge tube 410; the inner tube wall of the equally divided storage tube 432 coincides with the inner tube wall of the wear-resistant sleeve 433 respectively, and the wear-resistant sleeve 433 is adopted to reduce the wear of the equally divided storage tube 432 during rotation, thereby avoiding leakage of powder.

[0041] The upper end surface of the material shifting rod 423 abuts against the cover plate 422; when the dynamic storage assembly 43 rotates, the material shifting rod 423 can limit the upward movement of the dynamic storage assembly 43, and one side of the material shifting rod 423 is arranged on one side of the equal-division storage tube 432 directly below the material hopper 44. When the equal-division storage tube 432 directly below the material hopper 44 is full of powder, the material shifting rod 423 can scrape the surface of the equal-division storage tube 432 flat when it rotates.

[0042] The support seat 411 is formed with an opening 4112, and a horizontal support plate 4113 is bent on the upper side of the opening 4112. The servo motor 485 is inserted into the opening 4112 of the support seat 411 and fixed on the support plate 4113 by bolts.

[0043] The hopper mounting bracket 5 includes a support plate which is fixed on the feed pipe 441 by inserting, and a plurality of columns are respectively inserted and fixed on the front and rear sides of the support plate, and the lower ends of the columns are respectively fixed on the main frame 1 on the front and rear sides of the equal distribution feeding mechanism 4;

[0044] The feed pipe 441 is provided with a feed valve. When one equal storage tube 432 is filled, the feed valve of the feed pipe 441 can be closed, and the next equal storage tube 432 is transported to the bottom of the feed pipe 441, and then the feed valve is opened to realize feeding.

[0045] Valves are respectively provided at both ends of the double-cone mixing barrel 21. The valve port at one end of the double-cone mixing barrel 21 is located directly below the outlet at the lower end of the double-cone mixing barrel 21 and the diameter of the valve port is larger than the diameter of the lower end of the conveying bucket 3, which is convenient for feeding the double-cone mixing barrel 21.

[0046] Working principle: This structure is a mixer for manufacturing powder metallurgy parts. The structure of the mixer is as follows: Figure 1 As shown, a conventional double cone mixing mechanism 2 is designed in a main frame 1, and an equal-dividing feeding mechanism 4 capable of equally dividing raw materials is arranged at the top of the main frame 1, wherein the capacity of the equal-dividing storage tube 432 in the equal-dividing feeding mechanism 4 is a common divisor of each raw material in the metallurgical mixed powder, and thus the equal-dividing storage tube 432 for storing each raw material is an integer;

[0047] When feeding, the first raw material is loaded into the hopper 44, and then the powder in the hopper 44 enters the equal-divided storage tube 432. When the equal-divided storage tube 432 below the hopper 44 is full, the servo motor 485 drives the dynamic storage assembly 43 to rotate, so that the empty equal-divided storage tube 432 moves below the hopper 44, and the full equal-divided storage tube 432 rotates and is scraped flat by the material-sweeping rod 423. The material overflowing from the equal-divided storage tube 432 during the scraping or feeding process of the hopper 44 will fall into the guide bucket 434. And enter the return pipe 47 along the guide hopper 434, and be discharged and recycled through the return pipe 47; when the first raw material reaches the required amount, the empty equal-division storage pipe 432 is moved to the bottom of the hopper 44, and then the valve plate a of the return valve 46 is opened, and the excess raw material in the hopper 44 enters the right discharge pipe 410 through the equal-division storage pipe 432, and then enters the return pipe 47 through the right discharge pipe 410, and is discharged and recycled through the return pipe 47, so that the first raw material in the hopper 44 is completely discharged before the next raw material can be loaded;

[0048] Subsequent raw materials can be stored in other equal portions storage tubes 432 in the above manner, so that each raw material can be distributed in equal portions;

[0049] During mixing, the servo motor 485 moves the equal portion storage tube 432 of each raw material to the top of the feed valve 45. By opening the feed valve 45, each equal portion of the raw material is introduced into the double-cone mixing barrel 21, and the mixing is first performed by rotation to complete the mixing, and then the excess equal portions of other raw materials are added one by one to mix (that is, one portion of raw material is added and mixed until all raw materials are added).

[0050] The embodiments are used to illustrate the present invention, but not to limit the present invention. Any person skilled in the art may modify the embodiments without violating the spirit and scope of the present invention, and therefore, the scope of protection of the present invention shall be as set forth in the claims of the present invention.

Claims

1. A mixer for manufacturing powder metallurgy parts, comprising a main frame (1) of the mixer, a double-cone mixing mechanism (2) being arranged in the main frame (1), the double-cone mixing mechanism (2) comprising a mixing drive base fixed in the main frame (1), a vertical double-cone mixing barrel (21) being arranged in the mixing drive base, a conveying bucket (3) being arranged above the double-cone mixing barrel (21), the conveying bucket (3) being fixedly connected to the top of the main frame (1) through a conveying bucket bracket (6), characterized in that: An equal distribution feeding mechanism (4) is arranged on the top of the main frame (1) on the right side of the conveying bucket (3) and is opposite to the conveying bucket (3); The equal distribution feeding mechanism (4) comprises a base (41) fixedly connected to the top of the main frame (1), the base (41) comprises a cylindrical support seat (411), the upper and lower ends of the support seat (411) are respectively formed with connection disks, a fixed cylinder seat (42) is fixedly connected to the connection disk at the upper end of the support seat (411), the fixed cylinder seat (42) comprises a cylindrical outer shell seat (421), the upper end of the outer shell seat (421) is fixedly connected to a cover plate (422), a dynamic storage component (43) is pivotally connected inside the outer shell seat (421), and a rotating drive component (48) connected to the dynamic storage component (43) is provided on the support seat (411); The dynamic storage assembly (43) comprises a circular ring-shaped chassis (431), a plurality of vertical equally divided storage tubes (432) are plugged and fixed on the chassis (431) near the outer ring of the chassis (431), a circular ring-shaped wear-resistant sleeve (433) is fixed on the lower end surface of the equally divided storage tube (432), and the lower end of the wear-resistant sleeve (433) extends out of the chassis (431) and abuts against the inner bottom surface of the outer shell seat (421); the outer ring of the chassis (431) is fixedly connected with a graphite copper ring ( 435), the outer wall of the graphite copper ring (435) abuts against the inner wall of the outer shell seat (421), a conical flow guide hopper (434) is fixed on the upper sleeve of the equal-dividing storage tube (432), and a vertical tubular return port (4341) is formed in the middle of the flow guide hopper (434); a material shifting rod (423) is inserted and fixed in the outer shell seat (421) above the flow guide hopper (434), and the material shifting rod (423) abuts against the upper end surface of the equal-dividing storage tube (432); The rotary drive assembly (48) comprises an inner gear ring (481) plugged and fixed in the middle of the chassis (431), a gear (482) is meshed on the left side of the inner gear ring (481), the gear (482) is plugged and fixed on a vertical transmission shaft (483), the transmission shaft (483) is pivotally connected to the support seat (411) through a bearing seat (484), the lower end of the transmission shaft (483) is fixedly connected to the rotating shaft of the servo motor (485) through a coupling (486), and the servo motor (485) is fixedly connected to the support seat (411); The lower end surfaces on the left and right sides of the outer shell seat (421) are respectively formed with valve ports, and the left and right sides of the outer shell seat (421) are respectively provided with a feed valve (45) and a return valve (46) opposite to the valve ports. The feed valve (45) and the return valve (46) both include an L-shaped valve plate (a), and the valve plate (a) includes a horizontal sealing plate and a vertical connecting plate. The sealing plates of the valve plate (a) are respectively inserted into the valve ports on both sides of the outer shell seat (421), and a horizontal cylinder (b) is fixedly connected to the connecting plate of the valve plate (a). The piston rod of the cylinder (b) passes through the valve plate (a) and is fixedly connected to the outer walls on both sides of the outer shell seat (421); a horizontal guide rod (c) is inserted into the valve plate (a) on the upper side of the cylinder (b), and the guide rod (c) is respectively fixedly connected to the outer walls on both sides of the outer shell seat (421); A left guide pipe (49) and a right discharge pipe (410) facing the valve port on the housing seat (421) are respectively plugged and fixed on the connection plate at the upper end of the support seat (411), and the lower end of the left guide pipe (49) is inserted into the inlet of the conveying bucket (3); the lower end of the right discharge pipe (410) is fixedly connected to an inclined return pipe (47), and the return pipe (47) is plugged and fixed on the support seat (411). The upper end of the return pipe (47) is bent to form a vertical receiving pipe (471), and the upper end of the receiving pipe (471) passes through the inner The gear ring (481) is located directly below the return port (4341) on the guide hopper (434); a feed port facing the equal-division storage tube (432) is formed on the right side of the cover plate (422); a material hopper (44) is provided above the feed port; a vertical material supply pipe (441) is formed at the lower end of the material hopper (44); the material supply pipe (441) faces the feed port of the cover plate (422) and abuts against the cover plate (422); the material hopper (44) is fixedly connected to the top of the main frame (1) through a hopper mounting bracket (5).

2. A mixer for manufacturing powder metallurgy parts according to claim 1, characterized in that: The main frame (1) is rectangular, and wheels (7) are respectively fixedly connected to the four corners of the lower end surface of the main frame (1).

3. The mixer for manufacturing powder metallurgy parts according to claim 1, characterized in that: A mounting platform (412) is provided below the support seat (411), the mounting platform (412) is fixedly connected to the main frame (1), T-shaped guide columns (413) are respectively plugged into the connection disk at the lower end of the support seat (411), the lower end of the guide column (413) is fixedly connected to the mounting platform (412), a shock absorbing spring (414) is inserted and sleeved on the guide column (413), and the two ends of the shock absorbing spring (414) are respectively pressed against the support seat (411) and the mounting platform (412); a plurality of vibration motors (415) are fixedly connected to the connection disk at the lower end of the support seat (411), There are at least three guide posts (413), at least two groups of vibration motors (415), and the guide posts (413) and the vibration motors (415) are evenly distributed in a ring shape around the central axis of the support base (411).

4. The mixer for manufacturing powder metallurgy parts according to claim 1, characterized in that: The central axis of the upper outer shell seat (421) of the equal distribution feeding mechanism (4), the central axis of the bottom plate (431), the central axis of the guide bucket (434), the central axis of the graphite copper ring (435) and the central axis of the inner gear ring (481) are on the same straight line.

5. A mixer for manufacturing powder metallurgy parts according to claim 4, characterized in that: The aliquot storage tubes (432) are provided with at least six groups, and the aliquot storage tubes (432) are evenly distributed in a ring shape around the central axis of the bottom plate (431); The inner tube diameter of the equally divided storage tube (432) is larger than the inner tube diameter of the feeding tube (441) on the hopper (44), and smaller than the inner tube diameter of the upper end of the left guide tube (49) and the inner tube diameter of the upper end of the right discharge tube (410); the inner tube wall of the equally divided storage tube (432) overlaps with the inner tube wall of the wear-resistant sleeve (433).

6. The mixer for manufacturing powder metallurgy parts according to claim 1, characterized in that: The upper end surface of the material moving rod (423) abuts against the cover plate (422); The support seat (411) is formed with an opening (4112), and a horizontal support plate (4113) is formed by bending the upper side of the opening (4112). The servo motor (485) is inserted into the opening (4112) of the support seat (411) and fixed on the support plate (4113) by bolts.

7. The mixer for manufacturing powder metallurgy parts according to claim 1, characterized in that: The hopper mounting bracket (5) comprises a support plate which is fixedly inserted on the feed pipe (441), and a plurality of upright posts are respectively inserted and fixed on the front and rear sides of the support plate, and the lower ends of the upright posts are respectively fixedly connected to the main frame (1) on the front and rear sides of the equal distribution feeding mechanism (4); The feed pipe (441) is provided with a feed valve.

8. The mixer for manufacturing powder metallurgy parts according to claim 1, characterized in that: Valves are respectively provided at both ends of the double-cone mixing barrel (21), and the diameter of the valve opening at one end of the double-cone mixing barrel (21) is larger than the diameter of the lower end of the conveying bucket (3).

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