Automatic shaping machine for powder metallurgy products

Abstract

The present invention relates to the field of powder shaping machines, specifically to an automatic shaping machine for powder metallurgy products, comprising a sorting mechanism for screening and conveying metallurgical blocks of different particle sizes; a No. 1 shaping mechanism for rolling and shaping metallurgical blocks with smaller particles; and a No. 2 shaping mechanism for rolling and shaping metallurgical blocks with larger particles; the bottoms of the sorting mechanism, the No. 1 shaping mechanism and the No. 2 shaping mechanism are all provided with a support plate; wherein the No. 2 shaping mechanism comprises an electric push rod, and when the automatic shaping machine for powder metallurgy products coincides with the feed pipe through a circular hole, the metallurgical blocks inside the feed pipe will enter the feeding tray through the circular hole, thereby playing the role of periodically falling from the circular hole and falling just in front of the No. 1 sorting bar, and at the same time playing the role of making preliminary preparations for the subsequent screening of blocks of different sizes.

Description

Technical Field

[0001] The invention relates to the technical field of powder shaping machines, in particular to an automatic shaping machine for powder metallurgy products. Background Art

[0002] The automatic powder shaping machine applies pressure, shear force, friction force, etc. to the powder through a mechanical device, causing the powder particles to undergo plastic deformation or breakage, thereby changing their shape.

[0003] Existing automatic powder metallurgy shaping machines have the following problems: During the shaping process, uneven metallurgical particles may be over-crushed, resulting in excessive fine powder. Large particles may also be incompletely crushed, resulting in a wide particle size distribution after shaping, making it difficult to meet the particle size uniformity requirements of specific applications. Furthermore, to avoid blockages and jams caused by uneven particles, the feed rate of the automatic shaping equipment must be reduced to ensure smooth material flow through the equipment. This directly leads to a reduction in processing volume per unit time, reducing overall production efficiency. Summary of the Invention

[0004] The present invention provides an automatic shaping machine for powder metallurgy products to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: an automatic shaping machine for powder metallurgy products, comprising a sorting mechanism for screening and conveying metallurgical blocks of different particle sizes;

[0006] The No. 1 shaping mechanism is used to perform rolling and shaping on metallurgical blocks with smaller particles;

[0007] The second shaping mechanism is used to crush and shape metallurgical blocks with larger particles;

[0008] The bottoms of the sorting mechanism, the No. 1 shaping mechanism, and the No. 2 shaping mechanism are all provided with support plates;

[0009] The second shaping mechanism includes an electric push rod, the bottom end of which is fixedly connected to a central shaft;

[0010] The second arc-shaped tooth is used for transmitting rotational force and indirectly driving the central shaft to rotate in a circular manner. The second arc-shaped tooth is fixedly connected to the outer side of the central shaft;

[0011] The rolling plate is used for shaping and rolling metallurgical blocks, as well as for flattening metallurgical blocks.

[0012] Preferably, a telescopic rod is fixedly connected to the top of the rolling disc, and the telescopic rod is fixedly connected to the bottom of the shaping press head;

[0013] The damper is used for force buffering when the rolling disc and the metallurgical block are initially in contact and rolled. The top end of the damper is fixedly connected to the bottom of the shaping pressure head, and the bottom end of the damper is fixedly connected to the top of the rolling disc.

[0014] Preferably, the outer end surface of the bracket plate is fixedly connected to a double-headed bent rod, the top end of the double-headed bent rod is fixedly connected to a double circular plate, the inside of the double circular plate is fixedly connected to a servo motor, and the output end of the servo motor is connected to an external shaft through a coupling;

[0015] The first arc-shaped tooth meshes with the second arc-shaped tooth for transmission, and is used to transmit the rotational force of the servo motor to the central shaft.

[0016] Preferably, the sorting mechanism comprises a placing tray, the bottom of which is fixedly connected with a transition pipe, wherein the transition pipe is used for conveying and processing the fine blocks;

[0017] A No. 1 discharge pipe is used to discharge and transport the coarse metallurgical blocks after screening, and the No. 1 discharge pipe is fixedly connected to the outside of the material tray;

[0018] The No. 2 discharge pipe is used to discharge and transport the fine blocks after screening. The No. 2 discharge pipe is fixedly connected to the outside of the transition pipe.

[0019] Preferably, a material distribution hole is opened at the bottom of the material placement tray, wherein the material distribution hole is used for screening and conveying fine blocks and for limiting and blocking coarse blocks;

[0020] The support column is used for supporting the sorting mechanism and is connected to the top of the bracket plate. A motor is fixedly installed on the top of the support column, and the top of the motor is connected to a rotating shaft through a coupling.

[0021] Preferably, a first arc-shaped bar and a second arc-shaped bar are fixedly connected to the outer side of the rotating shaft, wherein the number of the first arc-shaped bar and the second arc-shaped bar are three, and they are connected to the rotating shaft in a circular array with a spacing therebetween, and the height of the first arc-shaped bar is higher than that of the second arc-shaped bar;

[0022] A No. 1 sorting bar, used for pulling and conveying the coarse metallurgical material, is fixedly connected to the outer end surface of the No. 1 curved bar;

[0023] The traction piece is mutually squeezed and adapted with the No. 1 sorting bar, and is used for screening and conveying coarse metallurgy. The traction piece is fixedly connected to the inside of the No. 1 discharge pipe.

[0024] Preferably, the outer end surface of the second arc-shaped strip is fixedly connected to the second sorting strip, and the bottom of the second sorting strip is slidably adapted to the bottom of the inner cavity of the material placement tray;

[0025] The No. 2 sorting bar is used for traction and transportation of fine metallurgical materials.

[0026] Preferably, a short shaft is fixedly connected to the top of the rotating shaft, the short shaft passes through the top of the material placing tray, and the two are rotatably connected to each other;

[0027] A top plate, used for indirectly preventing the input of metallurgical blocks, is fixedly connected to the short shaft. A feed pipe is provided above the top plate, and the feed pipe is fixedly connected to the top of the placing plate;

[0028] Circular holes for indirectly allowing the input of metallurgical blocks are opened on the surface of the top plate.

[0029] Preferably, the second shaping mechanism further comprises a holding cylinder, the holding cylinder is fixedly connected to the first discharge pipe, an external connecting cylinder is fixedly connected to the outer side of the holding cylinder, the external connecting cylinder is fixedly connected to the bracket plate, wherein the second discharge pipe is connected to the first shaping mechanism;

[0030] The blocking column is matched with the bottom of the holding cylinder, and the two are used to place the metallurgy after sorting.

[0031] Preferably, a limiting sleeve is fixedly connected to the outer side of the blocking column, wherein the limiting sleeve is used to limit the moving distance of the blocking column;

[0032] The top inclined plug disc is used to generate suction in the containing tube and to perform traction processing on the powder metallurgy after rolling. It is fixedly connected to the bottom end of the blocking column. The bottom of the top inclined plug disc is fixedly connected to a hydraulic rod, and the hydraulic rod is fixedly connected to the bottom of the inner cavity of the external tube. The outside of the external tube is fixedly connected to a material delivery pipe.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] 1. When the circular hole coincides with the feed pipe, the metallurgical blocks inside the feed pipe will enter the material tray through the circular hole, so that the metallurgical blocks will periodically fall from the circular hole and fall just in front of the No. 1 sorting bar, while also preparing for the subsequent screening of blocks of different sizes.

[0035] 2. Large metallurgical blocks are discharged outward along the traction plate and the No. 1 discharge pipe until they enter the No. 2 shaping mechanism, thereby playing the role of rapid screening and conveying of large metallurgical blocks. In addition, when some large blocks have not been conveyed away, the No. 1 sorting bar can convey them out again in the next cycle until all the blocks are conveyed.

[0036] 3. The material passes through the transition pipe into the No. 2 discharge pipe, and finally into the No. 1 shaping mechanism, thereby rapidly screening and conveying small metallurgical pieces. If some small pieces remain untransferred, the No. 2 sorting bar can transport them again in the next cycle until all the pieces are conveyed.

[0037] 4. The contraction of the telescopic rod and the damper allows the rolling disc to reduce the excessive squeezing force on large metallurgical blocks, providing a certain buffer space for the large metallurgical blocks. As a result, some of the large metallurgical blocks stacked together will gradually flatten under the slight squeezing force of the rolling disc, facilitating more uniform subsequent rolling and avoiding extensive wear caused by uneven force on the rolling disc.

[0038] 5. When the top inclined disk moves to a position aligned with the feed pipe, the powder metallurgy flows along the top of the top inclined disk and is discharged through the feed pipe. This cyclical swinging action crushes the metallurgy into powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 The figure is a schematic diagram of the external structure of an automatic shaping machine for powder metallurgy products according to the present invention.

[0040] Figure 2 It is a schematic diagram of the rear view structure of the entire present invention.

[0041] Figure 3 It is a structural schematic diagram of the sorting mechanism of the present invention.

[0042] Figure 4 It is a schematic diagram of the partial cross-sectional structure of the sorting mechanism of the present invention.

[0043] Figure 5 It is a schematic cross-sectional structure diagram of the sorting mechanism of the present invention.

[0044] Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure at point A in the middle.

[0045] Figure 7 It is a schematic diagram of the longitudinal structure of the sorting mechanism of the present invention.

[0046] Figure 8 It is a structural schematic diagram of the shaping mechanism of the present invention.

[0047] Figure 9 This is a schematic diagram of the upper half cross-sectional structure of the No. 2 shaping mechanism of the present invention.

[0048] Figure 10 For the present invention Figure 9 Schematic diagram of the enlarged structure at point B in the middle.

[0049] Figure 11 It is a schematic diagram of the lower half cross-sectional structure of the No. 2 shaping mechanism of the present invention.

[0050] Figure 12 For the present invention Figure 11 Schematic diagram of the enlarged structure at point C in the middle.

[0051] Figure: 1, support plate; 2, sorting mechanism; 3, shaping mechanism No. 1; 4, shaping mechanism No. 2; 5, double-headed bending rod; 6, double circular plate; 7, servo motor; 8, external shaft; 9, curved tooth No. 1; 21, material placement tray; 22, discharge pipe No. 1; 23, transition pipe; 24, discharge pipe No. 2; 25, material distribution hole; 26, support column; 27, motor; 28, rotating shaft; 29, curved bar No. 1; 20, sorting bar No. 1; 201, curved bar No. 2 ; 202, No. 2 sorting bar; 203, short shaft; 204, top plate; 205, round hole; 206, feed pipe; 207, traction plate; 41, electric push rod; 42, center axis; 43, No. 2 arc-shaped teeth; 44, shaping pressure head; 45, telescopic rod; 46, damping; 47, rolling plate; 48, holding cylinder; 49, external cylinder; 40, blocking column; 401, limiting sleeve; 402, top oblique plug plate; 403, hydraulic rod; 404, feed pipe. DETAILED DESCRIPTION

[0052] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. It should be noted that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0053] See also Figures 1 to 12 , the present invention provides a technical solution: Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown, it includes a sorting mechanism 2 for screening and conveying metallurgical blocks of different particle sizes;

[0054] The first shaping mechanism 3 is used for rolling and shaping metallurgical blocks with smaller particles;

[0055] The second shaping mechanism 4 is used for rolling and shaping metallurgical blocks with larger particles;

[0056] The bottoms of the sorting mechanism 2 , the No. 1 shaping mechanism 3 and the No. 2 shaping mechanism 4 are all provided with a support plate 1 .

[0057] The outer end surface of the bracket plate 1 is fixedly connected to a double-headed bent rod 5, the top of the double-headed bent rod 5 is fixedly connected to a double circular plate 6, the inside of the double circular plate 6 is fixedly connected to a servo motor 7, and the output end of the servo motor 7 is connected to an external shaft 8 through a coupling;

[0058] The first arc-shaped tooth 9 and the second arc-shaped tooth 43 mesh with each other and are used to transmit the rotational force of the servo motor 7 to the central shaft 42 .

[0059] The sorting mechanism 2 includes a material tray 21, the bottom of which is fixedly connected to a transition pipe 23, wherein the transition pipe 23 is used for conveying and processing fine blocks;

[0060] The first discharge pipe 22 is used to discharge and transport the coarse metallurgical blocks after screening. The first discharge pipe 22 is fixedly connected to the outside of the material tray 21;

[0061] The second discharge pipe 24 is used to discharge and transport the fine blocks after screening. The second discharge pipe 24 is fixedly connected to the outside of the transition pipe 23;

[0062] The bottom of the material tray 21 is provided with a material distribution hole 25, wherein the material distribution hole 25 is used for screening and conveying fine particles and for limiting and blocking coarse particles.

[0063] The support column 26 is used to support the sorting mechanism 2 and is connected to the top of the bracket plate 1. The top of the support column 26 is fixedly mounted with a motor 27, and the top of the motor 27 is connected to a rotating shaft 28 through a coupling.

[0064] The outer side of the rotating shaft 28 is fixedly connected to a first curved bar 29 and a second curved bar 201. There are three of each of the first curved bar 29 and the second curved bar 201, and they are connected to the rotating shaft 28 in a circular array with a spacing therebetween. The first curved bar 29 is located at a higher height than the second curved bar 201.

[0065] The first sorting bar 20 is used for traction and transportation of coarse metallurgical materials and is fixedly connected to the outer end surface of the first curved bar 29;

[0066] The traction piece 207 is mutually squeezed and adapted with the No. 1 sorting bar 20, and is used for screening and conveying coarse metallurgy. The traction piece 207 is fixedly connected to the inside of the No. 1 discharge pipe 22; through the positive rotation of the No. 1 sorting bar 20, the large metallurgical blocks that fall down will be pushed forward by it, and the metallurgical blocks below the bottom height of the No. 1 sorting bar 20 will stay in place and then be pushed forward by the No. 2 sorting bar 202. As the No. 1 sorting bar 20 pushes the large metallurgical blocks to rotate clockwise, the two will be hit by the traction piece 207 at the same time, but the large metallurgical blocks will come into contact with the traction piece 207 first, and the other metallurgical blocks will come into contact with the No. 1 sorting bar 202. It is tough, and the traction piece 207 is rigid, so the squeezed sorting bar 20 will bend, and at the same time, the large metallurgical blocks will break away from the sorting bar 20 and stay on the traction piece 207, wherein the No. 1 discharge pipe 22 and the traction piece 207 have a certain downward inclination angle, so the large metallurgical blocks will be discharged outward along the traction piece 207 and the No. 1 discharge pipe 22 until they enter the No. 2 shaping mechanism 4, thereby playing a role in rapid screening and conveying of the large metallurgical blocks. In addition, when some large blocks have not been conveyed away, the No. 1 sorting bar 20 can convey them outward again in the next cycle until all the blocks are conveyed.

[0067] The outer end surface of the second arc-shaped strip 201 is fixedly connected to the second sorting strip 202, and the bottom of the second sorting strip 202 is slidably adapted to the bottom of the inner cavity of the material tray 21;

[0068] The second sorting bar 202 is used to pull and convey fine metallurgical blocks. As the second sorting bar 202 rotates clockwise with small metallurgical blocks, when the second sorting bar 202 rotates to the position of the traction plate 207, because the top of the second sorting bar 202 does not contact the bottom of the traction plate 207, the second sorting bar 202 will continue to rotate clockwise with the small metallurgical blocks until it moves above the material distribution hole 25. At this time, the small metallurgical blocks will fall from the material distribution hole 25 into the transition pipe 23, and then from the transition pipe 23 into the second discharge pipe 24, and finally from the second discharge pipe 24 into the first shaping mechanism 3, thereby quickly screening and conveying the small metallurgical blocks. In addition, if some small blocks have not been conveyed away, the second sorting bar 202 can convey them out again in the next cycle until all the blocks have been conveyed.

[0069] The top of the rotating shaft 28 is fixedly connected to a short shaft 203, which passes through the top of the material placement tray 21, and the two are rotatably connected to each other;

[0070] The top plate 204 is used to indirectly prevent the input of metallurgical blocks and is fixedly connected to the short shaft 203. A feed pipe 206 is provided above the top plate 204, and the feed pipe 206 is fixedly connected to the top of the placing plate 21. By placing the metallurgical blocks to be crushed into the feed pipe 206 and then starting the motor 27, the shaft 28 connected to it through the coupling will rotate, and the top of the shaft 28 is connected to the short shaft 203, so the short shaft 203 will rotate with the top plate 204, wherein the top of the top plate 204 is provided with a circular hole 205, so when the circular hole 205 is in contact with the feed pipe 206, the top plate 204 is provided with a circular hole 205. 06 coincide with each other, the metallurgical blocks inside the feed tube 206 will enter the material tray 21 through the circular hole 205. At the same time, as the rotating shaft 28 rotates, the first curved bar 29 and the second curved bar 201 fixed to its outer side will rotate clockwise. The outer end face of the first curved bar 29 is connected to the first sorting bar 20, while the outer end face of the second curved bar 201 is connected to the second sorting bar 202. Therefore, the metallurgical blocks falling from the circular hole 205 will fall in front of the first sorting bar 20, where the direction is determined by the clockwise angle. This has the effect of periodically dropping the metallurgical blocks from the circular hole 205 and landing just in front of the first sorting bar 20, and also serves as a preparatory measure for the subsequent screening of blocks of different sizes.

[0071] The circular hole 205 is used to indirectly allow the input of metallurgical blocks and is opened on the surface of the top plate 204.

[0072] like Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 and Figure 12 As shown, the second shaping mechanism 4 includes an electric push rod 41, and the bottom end of the electric push rod 41 is fixedly connected to a central shaft 42;

[0073] The second arc-shaped tooth 43 is used for transmitting the rotational force and indirectly driving the central shaft 42 to rotate in a circular manner. The second arc-shaped tooth 43 is fixedly connected to the outer side of the central shaft 42;

[0074] The rolling plate 47 is used for shaping and rolling the metallurgical block, as well as for paving the metallurgical block;

[0075] The top of the rolling disc 47 is fixedly connected to a telescopic rod 45, which is fixedly connected to the bottom of the shaping head 44;

[0076] The damper 46 is used for the force buffering treatment when the initial rolling disc 47 contacts and rolls the metallurgical block. The top of the damper 46 is fixedly connected to the bottom of the shaping head 44, and the bottom of the damper 46 is fixedly connected to the top of the rolling disc 47. The large metallurgical block discharged from the No. 1 discharge pipe 22 will enter the space formed by the containing cylinder 48 and the blocking column 40, and then the electric push rod 41 is started, so that the central shaft 42 connected to the output end thereof will move downward with the No. 2 arc-shaped teeth 43 and the shaping head 44 respectively, wherein the bottom of the shaping head 44 is connected to the telescopic rod 45 and the damper 46, and the bottom of the telescopic rod 45 and the damper 46 are connected to the rolling disc 47. The pressure plate 47 is connected to the pressure plate 47, so the rolling plate 47 will initially contact the large piece of metallurgical material. When the second arc-shaped tooth 43 moves to the position meshing with the first arc-shaped tooth 9, the telescopic rod 45 and the damper 46 will be compressed, and the rolling plate 47 will initially crush the large piece of metallurgical material. In addition, the contraction of the telescopic rod 45 and the damper 46 also allows the rolling plate 47 to reduce the excessive squeezing force on the large piece of metallurgical material, giving the large piece of metallurgical material a certain buffer space, so that the large pieces of metallurgical material stacked together will gradually be flattened under the slight squeezing force of the rolling plate 47, so as to facilitate more uniform subsequent squeezing and avoid a large amount of wear caused by uneven force on the rolling plate 47.

[0077] The second shaping mechanism 4 further includes a holding cylinder 48, which is fixedly connected to the first discharge pipe 22. The outer side of the holding cylinder 48 is fixedly connected to an external connecting cylinder 49, which is fixedly connected to the bracket plate 1, wherein the second discharge pipe 24 is connected to the first shaping mechanism 3;

[0078] The blocking column 40 is matched with the bottom of the holding cylinder 48, and the two are used to place the metallurgical material after sorting;

[0079] The outer side of the blocking column 40 is fixedly connected to a limiting sleeve 401, wherein the limiting sleeve 401 is used to limit the moving distance of the blocking column 40;

[0080] The top oblique plug disc 402 is used to generate suction within the holding tube 48 and to pull the compacted powder metallurgy. It is fixedly connected to the bottom of the blocking column 40. A hydraulic rod 403 is fixedly connected to the bottom of the inner cavity of the external tube 49. A feed pipe 404 is fixedly connected to the outside of the external tube 49. The servo motor 7 is then activated, causing the external shaft 8 connected to its output end to cause the first arc-shaped tooth 9 to oscillate periodically. Simultaneously, the second arc-shaped tooth 43 oscillates synchronously and in the opposite direction. Finally, the compacting disc 47 compacts the crushed metallurgical mass. After the crushing is completed, the servo motor 7 is turned off and the electric push rod 41 is reset. Then, the hydraulic rod 403 is activated. At this time, the top inclined plug disc 402 connected to the top of the hydraulic rod 403 will move downward along the inner wall of the external tube 49. The top of the top inclined plug disc 402 is connected to the blocking column 40, so the blocking column 40 will move downward accordingly. At this time, a large number of holes will open at the bottom of the holding tube 48. As the top inclined plug disc 402 moves downward and generates suction inside the holding tube 48, the metallurgical powder will eventually fall onto the top inclined plug disc 402 through the holes. When the top inclined plug disc 402 moves to a position that is flush with the feed pipe 404, the metallurgical powder will flow along the top of the top inclined plug disc 402 and be discharged outward through the feed pipe 404. In this way, the metallurgical block is crushed by the periodic left-right swinging crushing method and finally formed into powder.

[0081] When the present invention is used: first, the metallurgical block to be crushed is placed into the feed pipe 206, and then the motor 27 is started, so that the rotating shaft 28 connected to it through the coupling will rotate, and the top of the rotating shaft 28 is connected to the short shaft 203, so the short shaft 203 will rotate with the top plate 204, wherein the top of the top plate 204 is provided with a circular hole 205, so when the circular hole 205 coincides with the feed pipe 206, the metallurgical block inside the feed pipe 206 will pass through the circular hole. 205 enters the material placing tray 21, and at the same time, as the rotating shaft 28 rotates, the No. 1 curved bar 29 and the No. 2 curved bar 201 fixedly connected to the outer side thereof rotate clockwise, and the outer end face of the No. 1 curved bar 29 is connected to the No. 1 sorting bar 20, and the outer end face of the No. 2 curved bar 201 is connected to the No. 2 sorting bar 202, so the metallurgical block falling from the circular hole 205 will fall in front of the No. 1 sorting bar 20, where the orientation is determined by the angle with the clockwise positive direction. Through the positive rotation of the No. 1 sorting bar 20, the large metallurgical blocks that fall down will be pushed forward by it, while the metallurgical blocks below the bottom height of the No. 1 sorting bar 20 will stay in place and then be pushed forward by the No. 2 sorting bar 202. As the No. 1 sorting bar 20 pushes the large metallurgical blocks to rotate clockwise, both will be hit by the traction piece 207 at the same time, but the large metallurgical blocks will first contact the traction piece 207. In addition, the No. 1 sorting bar 20 is tough, while the traction piece 207 is rigid. Therefore, the squeezed No. 1 sorting bar 20 will bend. At the same time, the large metallurgical blocks will break away from the No. 1 sorting bar 20 and stay on the traction piece 207. The No. 1 discharge pipe 22 and the traction piece 207 have a certain downward tilt angle, so the large metallurgical blocks will be discharged outward along the traction piece 207 and the No. 1 discharge pipe 22 until they enter the No. 2 shaping mechanism 4.

[0082] As the No. 2 sorting bar 202 rotates clockwise with the small pieces of metallurgical blocks, when the No. 2 sorting bar 202 rotates to the position of the traction plate 207, because the top of the No. 2 sorting bar 202 does not contact the bottom of the traction plate 207, the No. 2 sorting bar 202 will continue to rotate clockwise with the small pieces of metallurgical blocks until it moves to the top of the sorting hole 25. At this time, the small pieces of metallurgical blocks will fall from the sorting hole 25 into the transition pipe 23, and then enter the No. 2 discharge pipe 24 from the transition pipe 23, and finally enter the No. 1 shaping mechanism 3 from the No. 2 discharge pipe 24.

[0083] The large metallurgical block discharged from the No. 1 discharge pipe 22 will enter the space formed by the holding cylinder 48 and the blocking column 40, and then the electric push rod 41 will be started, so that the central shaft 42 connected to its output end will move downward with the No. 2 arc-shaped teeth 43 and the shaping pressure head 44 respectively, wherein the bottom of the shaping pressure head 44 is connected to the telescopic rod 45 and the damper 46, and the bottom of the telescopic rod 45 and the damper 46 is connected to the rolling plate 47, so the rolling plate 47 will make initial contact with the large metallurgical block. When the second arc-shaped tooth 43 moves to the position meshing with the first arc-shaped tooth 9, the telescopic rod 45 and the damper 46 will be compressed, and the crushing disc 47 will initially crush the large piece of metallurgical material. Then the servo motor 7 is started, so that the external shaft 8 connected to the output end thereof will cause the first arc-shaped tooth 9 to swing periodically. At the same time, the second arc-shaped tooth 43 will swing periodically in synchronization with it in the opposite direction. Finally, the crushing disc 47 will crush the crushed metallurgical material. When the rolling is completed, the servo motor 7 is turned off and the electric push rod 41 is reset, and then the hydraulic rod 403 is started. At this time, the top inclined plug disc 402 connected to the top of the hydraulic rod 403 will move downward along the inner wall of the external tube 49, wherein the top of the top inclined plug disc 402 is connected to the blocking column 40, so the blocking column 40 will move downward accordingly. At this time, a large number of holes will open at the bottom of the containing tube 48, and then accompanied by the downward movement of the top inclined plug disc 402 and the suction force generated in the containing tube 48, the metallurgy that eventually forms powder will fall on the top inclined plug disc 402 through the holes, and when the top inclined plug disc 402 moves to a position level with the feed pipe 404, the powder metallurgy will follow the top of the top inclined plug disc 402 and be discharged outward through the feed pipe 404.

[0084] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Various changes made by ordinary technicians in this field based on the above concepts without creative work fall within the scope of protection of the present invention.

Claims

1. An automatic shaping machine for powder metallurgy products, characterized in that: include: Sorting mechanism, used for screening and conveying metallurgical blocks of different particle sizes; The No. 1 shaping mechanism is used to perform rolling and shaping on metallurgical blocks with smaller particles; The second shaping mechanism is used to crush and shape metallurgical blocks with larger particles; The bottoms of the sorting mechanism, the No. 1 shaping mechanism, and the No. 2 shaping mechanism are all provided with support plates; The second shaping mechanism includes an electric push rod, the bottom end of which is fixedly connected to a central shaft; The second arc-shaped tooth is used for transmitting rotational force and indirectly driving the central shaft to rotate in a circular manner. The second arc-shaped tooth is fixedly connected to the outer side of the central shaft; Rolling plate, used for shaping and rolling metallurgical blocks, as well as for flattening metallurgical blocks; The sorting mechanism includes a material placing tray, the bottom of which is provided with a material separation hole, wherein the material separation hole is used for screening and conveying fine pieces and for limiting and blocking coarse pieces; A support column, used for supporting the sorting mechanism, is connected to the top of the bracket plate. A motor is fixedly mounted on the top of the support column, and the top of the motor is connected to a rotating shaft via a coupling. The outer side of the rotating shaft is fixedly connected to a first arc-shaped bar and a second arc-shaped bar, wherein the number of the first arc-shaped bar and the second arc-shaped bar are three, and they are connected to the rotating shaft in a circular array with a spacing therebetween, and the height of the first arc-shaped bar is higher than that of the second arc-shaped bar; A No. 1 sorting bar, used for pulling and conveying the coarse metallurgical material, is fixedly connected to the outer end surface of the No. 1 curved bar; A traction piece is mutually extruded and adapted with the No. 1 separation bar and is used for screening and conveying coarse metallurgical blocks. The traction piece is fixedly connected to the interior of the No. 1 discharge pipe; The outer end surface of the second arc-shaped strip is fixedly connected to the second sorting strip, and the bottom of the second sorting strip is slidably adapted to the bottom of the inner cavity of the material placement tray; The No. 2 sorting bar is used for traction and transportation of fine metallurgical materials.

2. The automatic shaping machine for powder metallurgy products according to claim 1, characterized in that: The top of the rolling disc is fixedly connected to a telescopic rod, and the telescopic rod is fixedly connected to the bottom of the shaping pressure head; The damper is used for force buffering when the rolling disc and the metallurgical block are initially in contact and rolled. The top end of the damper is fixedly connected to the bottom of the shaping pressure head, and the bottom end of the damper is fixedly connected to the top of the rolling disc.

3. The automatic shaping machine for powder metallurgy products according to claim 1, characterized in that: The outer end surface of the bracket plate is fixedly connected to a double-headed bent rod, the top end of the double-headed bent rod is fixedly connected to a double circular plate, the inside of the double circular plate is fixedly connected to a servo motor, and the output end of the servo motor is connected to an external shaft through a coupling; The first arc-shaped tooth meshes with the second arc-shaped tooth for transmission, and is used to transmit the rotational force of the servo motor to the central shaft.

4. The automatic shaping machine for powder metallurgy products according to claim 1, characterized in that: The bottom of the material tray is fixedly connected with a transition pipe, wherein the transition pipe is used for conveying and processing the fine blocks; A No. 1 discharge pipe is used to discharge and transport the coarse metallurgical blocks after screening, and the No. 1 discharge pipe is fixedly connected to the outside of the material tray; The No. 2 discharge pipe is used to discharge and transport the fine blocks after screening. The No. 2 discharge pipe is fixedly connected to the outside of the transition pipe.

5. The automatic shaping machine for powder metallurgy products according to claim 1, characterized in that: The top of the rotating shaft is fixedly connected with a short shaft, the short shaft passes through the top of the material placing tray, and the two are rotatably connected to each other; A top plate, used for indirectly preventing the input of metallurgical blocks, is fixedly connected to the short shaft. A feed pipe is provided above the top plate, and the feed pipe is fixedly connected to the top of the placing plate; Circular holes for indirectly allowing the input of metallurgical blocks are opened on the surface of the top plate.

6. The automatic shaping machine for powder metallurgy products according to claim 1, characterized in that: The second shaping mechanism further includes a holding cylinder, the holding cylinder is fixedly connected to the first discharge pipe, an external connecting cylinder is fixedly connected to the outer side of the holding cylinder, the external connecting cylinder is fixedly connected to the bracket plate, wherein the second discharge pipe is connected to the first shaping mechanism; The blocking column is matched with the bottom of the holding cylinder, and the two are used to place the metallurgy after sorting.

7. The automatic shaping machine for powder metallurgy products according to claim 6, characterized in that: The outer side of the blocking column is fixedly connected to a limiting sleeve, wherein the limiting sleeve is used to limit the moving distance of the blocking column; The top inclined plug disc is used to generate suction in the containing tube and to perform traction processing on the powder metallurgy after rolling. It is fixedly connected to the bottom end of the blocking column. The bottom of the top inclined plug disc is fixedly connected to a hydraulic rod, and the hydraulic rod is fixedly connected to the bottom of the inner cavity of the external tube. The outside of the external tube is fixedly connected to a material delivery pipe.

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