Machining forming mechanism for powder metallurgy parts

Abstract

The invention discloses a machining forming mechanism for powder metallurgy parts, and belongs to the field of metal powder machining, the machining forming mechanism comprises a material mixing mechanism and a mold pressing mechanism, the material mixing mechanism is located in front of the mold pressing mechanism, the mold pressing mechanism comprises a lower mold, a plurality of hydraulic rods are embedded in the top of the lower mold, and an upper mold is jointly fixed to the tops of the hydraulic rods; the mixing mechanism comprises a mixing cylinder, a rear fixing plate is fixed to the rear surface of the mixing cylinder, a feeding cylinder is fixed in the rear fixing plate in a penetrating mode, the front portion of the feeding cylinder is located in the mixing cylinder, and a rotating cylinder is rotationally connected to the outer surface of the feeding cylinder. A motor drives a main gear to rotate, the main gear drives a plurality of transmission gears to rotate, then all stirring rods rotate, metal powder is stirred and mixed, and caked materials are scattered; meanwhile, the transmission gear on the outer side is meshed with the inner gear ring, so that the whole stirring structure rotates by taking the feeding barrel as a circle center, and the stirring uniformity is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of metal powder processing, in particular to a processing and forming mechanism for powder metallurgy parts. Background Art

[0002] Powder metallurgy is a technology that uses metal powder or a mixture of metal powder and non-metal powder as raw materials to manufacture metal materials, composite materials and various types of products through processes such as molding and sintering. In the production process of powder metallurgy parts, mixing and molding are two key links. Traditional powder metallurgy processing and molding methods may have some problems, such as uneven mixing leading to unstable product quality; Therefore, a powder metallurgy parts processing and forming mechanism is needed to solve the above-mentioned problems. Summary of the invention

[0003] In view of the deficiencies of the prior art, the present invention provides a powder metallurgy parts processing and forming mechanism, which solves the problems raised in the above-mentioned background technology.

[0004] Technical solution: To solve the above technical problems, according to one aspect of the present invention, more specifically, a powder metallurgy parts processing and forming mechanism includes a mixing mechanism and a molding mechanism, the mixing mechanism is located in front of the molding mechanism, the molding mechanism includes a lower mold, a plurality of hydraulic rods are embedded in the top of the lower mold, and an upper mold is fixed on the top of the plurality of hydraulic rods; The mixing mechanism includes a mixing cylinder, a rear fixing plate is fixed on the rear surface of the mixing cylinder, a feeding cylinder is fixed inside the rear fixing plate, the front of the feeding cylinder is located inside the mixing cylinder, the outer surface of the feeding cylinder is rotatably connected with a rotating cylinder, a front rotating plate is fixed at the front end of the rotating cylinder, the front rotating plate is located on the front surface of the mixing cylinder, the outer surface of the feeding cylinder is rotatably connected with the front rotating plate, an auger rod is rotatably connected inside the feeding cylinder, the front end of the auger rod penetrates to the front end of the feeding cylinder and is fixed with a main gear, a bracket is provided in front of the main gear, the upper and lower ends of the bracket are fixedly connected to the outer surface of the mixing cylinder, a motor is fixed on the front surface of the bracket, the motor output shaft penetrates to the inner side of the bracket and is connected to the front of the main gear The cam is fixedly connected at the center of the surface, a turning plate is integrally formed on the left side of the outer surface of the rotating drum, a material trough is opened on the upper surface of the turning plate, a material port one is opened through the right side of the inside of the material trough, and the material port one is connected with the inside of the rotating drum, a material port two is opened through the upper part of the outer surface of the feeding barrel, two support plates are symmetrically fixed on the upper, lower and right sides of the outer surface of the rotating drum, a plurality of stirring rods are connected and rotated together between the two support plates in the same direction, the front end of the stirring rods penetrates to the front surface of the front rotating plate and is fixed with a transmission gear, an inner gear ring is fixed on the front surface of the mixing barrel on the outside of the front rotating plate, a gear plate is fixed on the upper left front surface of the inner gear ring, and a feed hopper is connected to the right side of the top of the mixing barrel.

[0005] Furthermore, a shaking frame is rotatably connected inside the feed hopper, a material port three is opened through the right side of the feed hopper, a rotating shaft is rotatably connected inside the feed hopper below the shaking frame, a cam is fixed on the outer surface of the rotating shaft, a slave gear one is fixed at the rear end of the rotating shaft, an outer gear ring is fixed together with the three rear support plates and the rear end of the flipping plate, a plurality of tooth grooves three are opened on the outer surface of the outer gear ring, and the outer gear ring is meshed and connected with the slave gear one through the tooth grooves three.

[0006] Furthermore, a plurality of tooth grooves 1 are provided on the inner surface of the inner gear ring, and the inner gear ring is meshed with three adjacent transmission gears through the tooth grooves 1; a plurality of tooth grooves 2 are provided on the inner surface of the tooth plate; a slave gear 2 is meshed with the inner side of the tooth plate through the tooth grooves 2; a worm is fixed to the rear surface of the slave gear 2; the rear end of the worm penetrates into the interior of the material trough and is rotatably connected to the inner wall of the material trough; a copying plate is slidably connected between the interior of the material trough and the upper surface of the flipping plate; a screw barrel is rotatably connected to the left side of the interior of the material trough; a worm wheel is fixed to the right end of the screw barrel, the bottom of the worm wheel is meshed with the outer surface of the worm; a screw is threadedly connected to the interior of the screw barrel, and the right end of the screw is fixedly connected to the copying plate; a torsion spring is commonly arranged between the slave gear 2 and the front rotating plate and located on the outside of the worm.

[0007] Furthermore, the right end of the feeding cylinder is connected to the interior of the lower mold.

[0008] Furthermore, the bracket is a U-shaped structure, the tooth plate is an arc-shaped structure, and the right side of the copying plate is an inclined structure.

[0009] Furthermore, two legs are fixed to the bottom of the mixing cylinder.

[0010] Furthermore, the left end of the turning plate and the left side of the lifting plate are both in contact with the inner surface of the mixing barrel.

[0011] Furthermore, a screen plate is provided inside the shaking frame.

[0012] Furthermore, two adjacent transmission gears are meshedly connected, and the main gear is meshed with three adjacent transmission gears.

[0013] The beneficial effects of the powder metallurgy parts processing and forming mechanism of the present invention are: (1) The mixing part of the present invention adopts a combination of multiple stirring methods; the motor drives the main gear to rotate, and the main gear drives multiple transmission gears to rotate, thereby causing all stirring rods to rotate, stirring and mixing the metal powder, and breaking up the agglomerated materials; at the same time, the outer transmission gear meshes with the inner gear ring, so that the entire stirring structure rotates with the feed barrel as the center, further improving the uniformity of stirring; the multi-directional and multi-angle stirring methods can ensure that different types of powders are fully mixed, thereby improving the efficiency and quality of mixing; and the turning plate can scoop up the powder at the bottom, enter the material trough, and then enter the feed barrel through the material port; in the process of turning the material, the powder is fully turned and mixed, avoiding the problem of uneven mixing caused by the accumulation of powder at the bottom; the setting of the scooping plate can assist in pushing the material into the material port, thereby improving the feeding efficiency, and at the same time can scrape off the powder material adhering to the inner wall of the material trough, thereby reducing the waste of material.

[0014] (2) The present invention sets a shaking frame and a sieve plate inside the feed hopper, which can screen the input powder material; the sieve plate can remove oversized particles and impurities, ensuring the quality of the powder entering the mixing mechanism, thereby improving the quality of the final product. Personnel can replace the sieve plate with different mesh sizes as needed to meet different production requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0016] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the right side cross-sectional structure of the present invention; Figure 3 It is a structural schematic diagram of the mixing mechanism in the present invention; Figure 4 It is a rear view structural schematic diagram of the mixing mechanism in the present invention; Figure 5 It is a schematic diagram of the top cross-sectional structure of the mixing mechanism in the present invention; Figure 6 It is a cross-sectional structural schematic diagram of the mixing mechanism in the present invention; Figure 7 For the present invention Figure 6 The schematic diagram of the structure after the enlargement of A in the middle; Figure 8 It is a schematic diagram of the internal structure of the mixing mechanism in the present invention; Fig. 9 For the present invention Figure 8 Schematic diagram of the rear view structure.

[0017] In the figure: 1. Mixing mechanism; 2. Molding mechanism; 3. Lower mold; 4. Hydraulic rod; 5. Upper mold; 6. Mixing cylinder; 7. Support legs; 8. Rear fixed plate; 9. Feeding cylinder; 10. Rotating cylinder; 11. Front rotating plate; 12. Auger rod; 13. Main gear; 14. Bracket; 15. Motor; 16. Turning plate; 17. Material trough; 18. Material port 1; 19. Material port 2; 20. Support plate; 21. Stirring rod; 22, transmission gear; 23, inner gear ring; 24, gear plate; 25, feed hopper; 26, shaking frame; 27, material port three; 28, rotating shaft; 29, cam; 30, follower gear one; 31, outer gear ring; 32, tooth groove one; 33, tooth groove two; 34, tooth groove three; 35, follower gear two; 36, worm; 37, copy plate; 38, screw barrel; 39, worm wheel; 40, screw; 41, torsion spring. DETAILED DESCRIPTION

[0018] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0019] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Reference Figure 1-9 A powder metallurgy parts processing and forming mechanism, comprising a mixing mechanism 1 and a molding mechanism 2, wherein the mixing mechanism 1 is located in front of the molding mechanism 2, and the molding mechanism 2 comprises a lower mold 3, wherein a plurality of hydraulic rods 4 are embedded on the top of the lower mold 3, and an upper mold 5 is fixed on the top of the plurality of hydraulic rods 4; The mixing mechanism 1 includes a mixing cylinder 6, a rear fixed plate 8 is fixed to the rear surface of the mixing cylinder 6, a feeding cylinder 9 is fixed inside the rear fixed plate 8, the front of the feeding cylinder 9 is located inside the mixing cylinder 6, and the outer surface of the feeding cylinder 9 is rotatably connected to a rotating cylinder 10, a front rotating plate 11 is fixed to the front end of the rotating cylinder 10, the front rotating plate 11 is located on the front surface of the mixing cylinder 6, the outer surface of the feeding cylinder 9 is rotatably connected to the front rotating plate 11, and an auger rod 12 is rotatably connected inside the feeding cylinder 9, the front end of the auger rod 12 penetrates to the front end of the feeding cylinder 9, and a main gear 13 is fixed, a bracket 14 is provided in front of the main gear 13, and the upper and lower ends of the bracket 14 are fixedly connected to the outer surface of the mixing cylinder 6, a motor 15 is fixed to the front surface of the bracket 14, and the output shaft of the motor 15 penetrates to the inner side of the bracket 14 and is fixedly connected to the center of the front surface of the main gear 13. A turning plate 16 is integrally formed on the side, and a material trough 17 is provided on the upper surface of the turning plate 16. A material port 18 is opened through the right side of the material trough 17, and the material port 18 is connected to the inside of the rotating drum 10. A material port 2 19 is opened through the upper surface of the outer surface of the feeding drum 9. Two support plates 20 are symmetrically fixed above, below and on the right side of the outer surface of the rotating drum 10. A plurality of stirring rods 21 are connected and rotated together between the two support plates 20 in the same direction. The front end of the stirring rod 21 penetrates to the front surface of the front rotating plate 11 and is fixed with a transmission gear 22. An inner gear ring 23 is fixed to the front surface of the mixing drum 6 on the outside of the front rotating plate 11, and a gear plate 24 is fixed to the upper left front surface of the inner gear ring 23. A feed hopper 25 is connected to the right side of the top of the mixing drum 6, and two adjacent transmission gears 22 are meshed and connected, and the main gear 13 is connected to the three adjacent transmission gears 22.

[0021] A shaking frame 26 is rotatably connected inside the feed hopper 25, and a material port 27 is provided on the right side of the feed hopper 25. A rotating shaft 28 is rotatably connected inside the feed hopper 25 below the shaking frame 26. A cam 29 is fixed on the outer surface of the rotating shaft 28, and a slave gear 30 is fixed at the rear end of the rotating shaft 28. An outer gear ring 31 is fixed to the rear end of the three support plates 20 at the rear and the flipping plate 16. A plurality of tooth grooves 34 are provided on the outer surface of the outer gear ring 31. The outer gear ring 31 is meshed and connected with the slave gear 30 through the tooth grooves 34. When in use, when the control motor 15 is running, the main gear 13 and the auger rod 12 rotate, and the main gear 13 drives the three adjacent transmission gears 22 to rotate, and then the transmission gear 22 drives in turn, all the transmission gears 22 and the stirring rod 21 rotate, and the three outer transmission gears 22 rotate and mesh with the inner gear ring 23 and relatively drive the front rotating plate 11, the drum 10, the flipping plate 16, and the support plate 20. The structures such as the stirring rod 21 and the outer gear ring 31 rotate with the feeding barrel 9 as the center of the circle. The personnel put the powder material into the feeding hopper 25. The rotating outer gear ring 31 rotates the rotating shaft 28 and the cam 29 through the meshing transmission with the slave gear 1 30. The cam 29 rotates continuously to resist the shaking frame 26, so that the material is screened, and the impurities and oversized particles are discharged through the material port 3 27. After being collected by the personnel, they can be recycled and screened again; the screened material falls into the mixing barrel 6, and different kinds of materials are mixed under the stirring of the stirring rod 21, and are picked up and entered into the material trough 17 during the rotation of the flipping plate 16. During the continuous clockwise rotation, the material inside the material trough 17 slides through the material port 1 18 and the material port 2 19 in turn into the feeding barrel 9, and the continuously rotating auger rod 12 transmits the material to the rear molding mechanism 2; the hydraulic rod 4 contracts to make the upper mold 5 descend and squeeze the material inside the lower mold 3, so that it is pressed and formed.

[0022] Reference Figure 1-9 The inner surface of the inner gear ring 23 is provided with a plurality of tooth grooves 32, and the inner gear ring 23 is meshed and connected with three adjacent transmission gears 22 through the tooth grooves 32. When the transmission gear 22 is driven by the main gear 13 and rotates, the front rotating plate 11 will rotate with the feeding cylinder 9 as the center through meshing with the inner gear ring 23; The inner surface of the tooth plate 24 is provided with a plurality of tooth grooves 33, the inner side of the tooth plate 24 is meshedly connected with a slave gear 35 through the tooth grooves 33, a worm 36 is fixed to the rear surface of the slave gear 35, the rear end of the worm 36 penetrates into the inside of the material trough 17, and is rotatably connected with the inner wall of the material trough 17, a copying plate 37 is slidably connected with the upper surface of the flipping plate 16 inside the material trough 17, a screw barrel 38 is rotatably connected to the left side of the material trough 17, a worm wheel 39 is fixed to the right end of the screw barrel 38, the bottom of the worm wheel 39 is meshedly connected with the outer surface of the worm 36, a screw 40 is threadedly connected to the inside of the screw barrel 38, and the screw 40 is threadedly connected to the inside of the screw barrel 38. 0 right end is fixedly connected with the copying plate 37; a torsion spring 41 is commonly provided between the slave gear 2 35 and the front rotating plate 11 on the outside of the worm 36. When the front rotating plate 11 rotates, the slave gear 2 35, the worm 36 and other structures are driven to rotate, the slave gear 2 35 meshes with the tooth plate 24 to rotate axially left and right, and the axially rotating worm 36 rotates the screw barrel 38 through the worm wheel 39, so that the screw 40 extends out to push the copying plate 37 to move right along the material trough 17, so that the auxiliary sliding material enters the inside of the material port 18, and can scrape off the powder material adhering to the inner wall of the material trough 17, thereby improving the feeding efficiency.

[0023] Reference Figure 2-5 The right end of the feeding tube 9 is connected with the interior of the lower mold 3. After the mixing mechanism 1 mixes the materials, the feeding tube 9 sends the materials into the interior of the lower mold 3 to wait for compaction and molding.

[0024] Reference Figure 1-9 The bracket 14 is a U-shaped structure, the tooth plate 24 is an arc-shaped structure, the right side of the shoveling plate 37 is an inclined structure, the left end of the flipping plate 16 and the left side of the shoveling plate 37 are both in contact with the inner surface of the mixing barrel 6, so that the flipping plate 16 and the shoveling plate 37 scoop up the material at the bottom and flip it into the inside of the material trough 17.

[0025] Reference Figure 1 , Figure 6 Two legs 7 are fixed at the bottom of the mixing cylinder 6 to support the mixing cylinder 6 .

[0026] Reference Figure 6-9 A sieve plate is provided inside the shaking frame 26, and the sieve plate is detachably connected to the shaking frame 26. Personnel can replace sieve plates with different mesh sizes for use, and the powdered materials fed are sieved through the sieve plate, so that the sieving can remove oversized particles and impurities.

[0027] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A powder metallurgy parts processing and molding mechanism, comprising a mixing mechanism (1) and a molding mechanism (2), characterized in that: The mixing mechanism (1) is located in front of the molding mechanism (2); the molding mechanism (2) comprises a lower mold (3); a plurality of hydraulic rods (4) are embedded on the top of the lower mold (3); an upper mold (5) is fixed to the tops of the plurality of hydraulic rods (4); The mixing mechanism (1) comprises a mixing cylinder (6), a rear fixing plate (8) being fixed to the rear surface of the mixing cylinder (6), a feeding cylinder (9) being fixed through the interior of the rear fixing plate (8), the front of the feeding cylinder (9) being located inside the mixing cylinder (6), a rotating cylinder (10) being rotatably connected to the outer surface of the feeding cylinder (9), a front rotating plate (11) being fixed to the front end of the rotating cylinder (10), the front rotating plate (11) being located on the front surface of the mixing cylinder (6), and the outer surface of the feeding cylinder (9) being connected to the mixing cylinder (6). The front rotating plate (11) is rotatably connected, and an auger rod (12) is rotatably connected inside the feeding barrel (9). The front end of the auger rod (12) penetrates the front end of the feeding barrel (9) and is fixed with a main gear (13). A bracket (14) is provided in front of the main gear (13). The upper and lower ends of the bracket (14) are fixedly connected to the outer surface of the mixing barrel (6). A motor (15) is fixed on the front surface of the bracket (14). The output shaft of the motor (15) penetrates the inner side of the bracket (14). , and is fixedly connected to the center of the front surface of the main gear (13); a turning plate (16) is integrally formed on the left side of the outer surface of the rotating drum (10); a material trough (17) is provided on the upper surface of the turning plate (16); a material opening (18) is provided through the right side of the inside of the material trough (17); the material opening (18) is communicated with the inside of the rotating drum (10); a material opening (19) is provided through the upper part of the outer surface of the feeding drum (9); the upper, lower and right sides of the outer surface of the rotating drum (10) are symmetrical. Two support plates (20) are fixed, and a plurality of stirring rods (21) are connected and rotated together between the two support plates (20) in the same direction. The front ends of the stirring rods (21) penetrate the front surface of the front rotating plate (11) and are fixed with transmission gears (22). The front surface of the mixing cylinder (6) is located outside the front rotating plate (11) and is fixed with an internal gear ring (23). A gear plate (24) is fixed on the upper left of the front surface of the internal gear ring (23). The top right side of the mixing cylinder (6) is connected with a feed hopper (25).

2. A powder metallurgy parts processing and forming mechanism according to claim 1, characterized in that: The feed hopper (25) is rotatably connected to a shaking frame (26) inside, and a material port three (27) is opened through the right side of the feed hopper (25). A rotating shaft (28) is rotatably connected to the feed hopper (25) below the shaking frame (26). A cam (29) is fixed to the outer surface of the rotating shaft (28), and a slave gear one (30) is fixed to the rear end of the rotating shaft (28). The three rear support plates (20) and the rear end of the flipping plate (16) are jointly fixed with an outer gear ring (31), and a plurality of tooth grooves three (34) are opened on the outer surface of the outer gear ring (31). The outer gear ring (31) is meshed and connected with the slave gear one (30) through the tooth grooves three (34).

3. The powder metallurgy parts processing and forming mechanism according to claim 1, characterized in that: The inner surface of the inner gear ring (23) is provided with a plurality of tooth grooves (32), and the inner gear ring (23) is meshedly connected with three adjacent transmission gears (22) via the tooth grooves (32). The inner surface of the tooth plate (24) is provided with a plurality of tooth grooves (33), and the inner side of the tooth plate (24) is meshedly connected with a second slave gear (35) via the tooth grooves (33). A worm (36) is fixed to the rear surface of the second slave gear (35), and the rear end of the worm (36) penetrates into the interior of the material trough (17) and is rotatably connected to the inner wall of the material trough (17). The material trough ( A lifting plate (37) is slidably connected to the upper surface of the material turning plate (16) inside the material trough (17), a screw barrel (38) is rotatably connected to the left side inside the material trough (17), a worm wheel (39) is fixed to the right end of the screw barrel (38), the bottom of the worm wheel (39) is meshingly connected to the outer surface of the worm (36), a screw rod (40) is threadedly connected to the inside of the screw barrel (38), and the right end of the screw rod (40) is fixedly connected to the lifting plate (37); a torsion spring (41) is commonly provided between the second slave gear (35) and the front rotating plate (11) and located outside the worm (36).

4. The powder metallurgy parts processing and forming mechanism according to claim 1, characterized in that: The right end of the feeding cylinder (9) is connected to the interior of the lower mold (3).

5. The powder metallurgy parts processing and forming mechanism according to claim 3, characterized in that: The bracket (14) is a U-shaped structure, the tooth plate (24) is an arc-shaped structure, and the right side of the lifting plate (37) is an inclined surface structure.

6. The powder metallurgy parts processing and forming mechanism according to claim 1, characterized in that: Two supporting legs (7) are fixed to the bottom of the mixing cylinder (6).

7. The powder metallurgy parts processing and forming mechanism according to claim 3, characterized in that: The left end of the turning plate (16) and the left side of the lifting plate (37) are both in contact with the inner surface of the mixing cylinder (6).

8. The powder metallurgy parts processing and forming mechanism according to claim 2, characterized in that: A sieve plate is provided inside the shaking frame (26).

9. The powder metallurgy parts processing and forming mechanism according to claim 1, characterized in that: Two adjacent transmission gears (22) are meshedly connected, and the main gear (13) is connected to three adjacent transmission gears (22).

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