Automatic shaping machine for powder metallurgy products

Abstract

The invention relates to the field of powder shaping machines, in particular to an automatic shaping machine for powder metallurgy products, which comprises a sorting mechanism used for screening and conveying metallurgical material blocks with different particle sizes; the first shaping mechanism is used for carrying out rolling and shaping treatment on the metallurgy material blocks with small particles; the second shaping mechanism is used for carrying out rolling and shaping treatment on the metallurgy material blocks with large particles; the bottom of the sorting mechanism, the bottom of the first shaping mechanism and the bottom of the second shaping mechanism are each provided with a support plate. Wherein the second shaping mechanism comprises an electric push rod, according to the automatic shaping machine for the powder metallurgy products, when a round hole coincides with a feeding pipe, metallurgical blocks located in the feeding pipe can enter a material containing disc through the round hole, and therefore the effect that the metallurgical blocks can periodically fall down from the round hole and just fall into the front portion of a first sorting strip is achieved; and meanwhile, the effect of preparing for subsequent screening of blocks with different sizes is achieved.

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] The existing automatic shaping machines for powder metallurgy have the following problems: small particles of uneven metallurgical particles may be over-broken during the shaping process, resulting in excessive fine powder; large particles may not be completely broken, resulting in a wide distribution of particle size after shaping, making it difficult to meet the requirements of particle size uniformity for specific applications; in order to avoid blockage and jamming caused by uneven particles, the feeding speed of the automatic shaping equipment has to be reduced to ensure that the material can be shaped smoothly through the equipment. This directly leads to a reduction in the processing volume per unit time, reducing the 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; The first shaping mechanism is used to roll and shape metallurgical blocks with smaller particles; The second shaping mechanism is used to roll and shape metallurgical blocks with larger particles; The bottoms of the sorting mechanism, the first shaping mechanism and the second 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 the 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; The rolling plate is used for shaping and rolling metallurgical blocks, as well as for flattening metallurgical blocks.

[0006] 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; 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.

[0007] Preferably, the outer end surface of the bracket plate is fixedly connected with a double-headed bent rod, the top end of the double-headed bent rod is fixedly connected with a double circular plate, the inside of the double circular plate is fixedly connected with a servo motor, and the output end of the servo motor is connected with 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.

[0008] Preferably, the sorting mechanism comprises a material 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; A No. 1 discharge pipe, used for discharging and conveying the coarse metallurgical block after screening, and the No. 1 discharge pipe is fixedly connected to the outer side of the material tray; The No. 2 discharge pipe is used for discharging and conveying the fine blocks after screening, and the No. 2 discharge pipe is fixedly connected to the outside of the transition pipe.

[0009] Preferably, a material distribution hole is provided 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; A support column is used for supporting the sorting mechanism and is connected to the top of the bracket plate. A motor is fixedly mounted on the top of the support column, and a rotating shaft is connected to the top of the motor via a coupling.

[0010] Preferably, the outer side of the rotating shaft is respectively fixedly connected with 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 form with the two being spaced apart from each other, and the height of the first arc-shaped bar is higher than that of the second arc-shaped bar; A first sorting bar, used for traction and conveying of coarse metallurgical blocks, and fixedly connected to the outer end surface of the first arc-shaped bar; The traction piece is mutually squeezed and adapted with the No. 1 sorting bar and is used for screening and conveying coarse metallurgical blocks. The traction piece is fixedly connected to the inside of the No. 1 discharge pipe.

[0011] Preferably, the outer end surface of the second arc-shaped strip is fixedly connected with a second sorting strip, and the bottom of the second sorting strip is slidably matched with 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.

[0012] 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; A top plate, used for indirectly preventing the input of metallurgical blocks, is fixedly connected to the short shaft, and a feed pipe is arranged 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.

[0013] Preferably, the second shaping mechanism further comprises a containing cylinder, the containing cylinder is fixedly connected to the first discharging pipe, an external connecting cylinder is fixedly connected to the outer side of the containing cylinder, the external connecting cylinder is fixedly connected to the bracket plate, wherein the second discharging pipe is connected to the first shaping mechanism; The blocking column is overlapped and matched with the bottom of the containing cylinder, and the two are used for placing the metallurgical materials after sorting.

[0014] 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; The top inclined plug disk 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 disk is fixedly connected to a hydraulic rod, and the hydraulic rod is fixedly connected to the bottom of the inner cavity of the external connecting tube. The outside of the external connecting tube is fixedly connected to a feed pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. When the circular hole coincides with the feed pipe, the metallurgical blocks in 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, and at the same time, it also serves as a preparatory step for the subsequent screening of blocks of different sizes.

[0016] 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.

[0017] 3. The material enters the No. 2 discharge pipe through the transition pipe, and finally enters the No. 1 shaping mechanism from the No. 2 discharge pipe, thereby playing the role of rapid screening and conveying of small metallurgical blocks. In addition, when some small blocks have not been conveyed away, the No. 2 sorting bar can convey them out again in the next cycle until all the blocks are conveyed.

[0018] 4. The contraction of the telescopic rod and the damper can reduce the excessive squeezing force of the rolling disc on the large metallurgical blocks, and provide a certain buffer space for the large metallurgical blocks, so that the large metallurgical blocks that are partially stacked together will be gradually flattened under the slight squeezing force of the rolling disc, which will facilitate more uniform subsequent rolling and avoid a large amount of wear caused by uneven force on the rolling disc.

[0019] 5. When the top inclined plug plate moves to a position that is level with the feed pipe, the powder metallurgy will flow along the top of the top inclined plug plate and be discharged through the feed pipe. Thus, the metallurgical block is crushed by the rolling method of periodic left and right swings, and finally the powder is formed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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.

[0021] Figure 2 It is a schematic diagram of the rear view structure of the present invention as a whole.

[0022] Figure 3 It is a structural schematic diagram of the sorting mechanism of the present invention.

[0023] Figure 4 It is a schematic diagram of the partial cross-sectional structure of the sorting mechanism of the present invention.

[0024] Figure 5 It is a schematic cross-sectional structure diagram of the sorting mechanism of the present invention.

[0025] Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure at point A in the middle.

[0026] Figure 7 It is a schematic diagram of the longitudinal structure of the sorting mechanism of the present invention.

[0027] Figure 8 It is a structural schematic diagram of the shaping mechanism of the present invention.

[0028] Fig. 9 It is a schematic diagram of the upper half cross-sectional structure of the second shaping mechanism of the present invention.

[0029] Fig.10 For the present invention Fig. 9 Schematic diagram of the enlarged structure at point B in the middle.

[0030] Fig.11 It is a schematic diagram of the lower half cross-sectional structure of the second shaping mechanism of the present invention.

[0031] Fig.12 For the present invention Fig.11 Schematic diagram of the enlarged structure at point C in the middle.

[0032] In the 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, arc-shaped tooth No. 1; 21, material placement plate; 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, arc-shaped bar No. 1; 20, sorting bar No. 1; 201, arc-shaped bar No. 2 ; 202, No. 2 sorting bar; 203, short shaft; 204, top plate; 205, round hole; 206, feed pipe; 207, traction piece; 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 tube; 49, external tube; 40, blocking column; 401, limiting sleeve; 402, top inclined plug plate; 403, hydraulic rod; 404, feed pipe. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment. 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.

[0034] 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; The first shaping mechanism 3 is used for rolling and shaping metallurgical blocks with smaller particles; The second shaping mechanism 4 is used for rolling and shaping metallurgical blocks with larger particles; A support plate 1 is provided at the bottom of the sorting mechanism 2 , the first shaping mechanism 3 and the second shaping mechanism 4 .

[0035] The outer end surface of the bracket plate 1 is fixedly connected with a double-headed curved rod 5, the top end of the double-headed curved rod 5 is fixedly connected with a double circular plate 6, the inside of the double circular plate 6 is fixedly connected with a servo motor 7, and the output end of the servo motor 7 is connected with an external shaft 8 through a coupling; 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 .

[0036] The sorting mechanism 2 includes a material placing tray 21, and a transition pipe 23 is fixedly connected to the bottom of the material placing tray 21, wherein the transition pipe 23 is used for conveying and processing fine blocks; The first discharge pipe 22 is used to discharge and transport the coarse metallurgical block after screening. The first discharge pipe 22 is fixedly connected to the outer side of the material tray 21; The second discharge pipe 24 is used for discharging and conveying the fine blocks after screening. The second discharge pipe 24 is fixedly connected to the outside of the transition pipe 23; 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 blocks and for limiting and blocking coarse blocks; The support column 26 is used for supporting the sorting mechanism 2 and is connected to the top of the support plate 1. A motor 27 is fixedly mounted on the top of the support column 26, and a rotating shaft 28 is connected to the top of the motor 27 through a coupling. The outer side of the rotating shaft 28 is respectively fixedly connected with a first arc strip 29 and a second arc strip 201, wherein the number of the first arc strip 29 and the second arc strip 201 are both three, and they are connected to the rotating shaft 28 in a circular array form with a spacing between them, and the height of the first arc strip 29 is higher than the height of the second arc strip 201; The first sorting bar 20 is used for traction and conveying of coarse metallurgical blocks and is fixedly connected to the outer end surface of the first curved bar 29; The traction piece 207 is mutually squeezed and adapted with the No. 1 sorting bar 20, and is used for screening and conveying coarse metallurgical blocks. 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 contact the traction piece 207 first, and the other No. 1 sorting bar 202 will contact the large metallurgical blocks first. It is tough, and the traction sheet 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 sheet 207, wherein the No. 1 discharge pipe 22 and the traction sheet 207 have a certain downward inclination angle, so the large metallurgical blocks will be discharged outward along the traction sheet 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 out again in the next cycle until all the blocks are conveyed.

[0037] The outer end surface of the second arc-shaped strip 201 is fixedly connected with the second sorting strip 202, and the bottom of the second sorting strip 202 is slidably matched with the bottom of the inner cavity of the material placement tray 21; The No. 2 sorting bar 202 is used for traction and transportation of fine metallurgical blocks; as the No. 2 sorting bar 202 rotates clockwise with small 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 metallurgical blocks until it moves to the top of 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 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, thereby playing a role in rapid screening and transportation of small metallurgical blocks. In addition, when some small blocks have not been transported away, the No. 2 sorting bar 202 can transport them out again in the next cycle until all the blocks are transported.

[0038] The top of the rotating shaft 28 is fixedly connected with a short shaft 203, the short shaft 203 passes through the top of the material placing tray 21, and the two are rotatably connected to each other; The top plate 204 is used to indirectly prevent the metallurgical block from being put into the feed plate, and is fixedly connected to the short shaft 203. A feed pipe 206 is arranged above the top plate 204, and the feed pipe 206 is fixedly connected to the top of the material placing plate 21. By placing the metallurgical block to be rolled into the feed pipe 206, and then starting the motor 27, the rotating shaft 28 connected to the feed pipe 206 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 is connected to the feed pipe 206, the short shaft 203 will rotate with the top plate 204. 06 overlap, the metallurgical block inside the feed pipe 206 will enter the material tray 21 through the circular hole 205, and at the same time, with the rotation of the rotating shaft 28, the first arc strip 29 and the second arc strip 201 fixedly connected to the outer side thereof will rotate clockwise, and the outer end face of the first arc strip 29 is connected to the first sorting strip 20, and the outer end face of the second arc strip 201 is connected to the second sorting strip 202, so the metallurgical block falling from the circular hole 205 will fall in front of the first sorting strip 20, wherein the orientation is determined by the clockwise angle. Thus, the metallurgical block will periodically fall from the circular hole 205 and fall just in front of the first sorting strip 20, and at the same time, it also plays a role in preparing for the subsequent screening of blocks of different sizes.

[0039] A circular hole 205 is provided on the surface of the top plate 204 to indirectly allow the input of metallurgical blocks.

[0040] like Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.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; The second arc-shaped tooth 43 is used for transmitting the rotational force and indirectly driving the central shaft 42 to rotate in a circle. The second arc-shaped tooth 43 is fixedly connected to the outer side of the central shaft 42; The rolling plate 47 is used for shaping and rolling the metallurgical block, and for paving the metallurgical block; The top of the rolling disc 47 is fixedly connected with a telescopic rod 45, and the telescopic rod 45 is fixedly connected to the bottom of the shaping pressure head 44; The damper 46 is used for the force buffering treatment when the rolling disc 47 and the metallurgical block are initially in contact and rolled. The top end of the damper 46 is fixedly connected to the bottom of the shaping head 44, and the bottom end of the damper 46 is fixedly connected to the top of the rolling disc 47. The large block of metallurgical material 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 roller 47, so the roller 47 will initially contact the large metallurgical blocks. When the second arc tooth 43 moves to the position meshing with the first arc tooth 9, the telescopic rod 45 and the damper 46 will be compressed, and the roller 47 will initially crush the large metallurgical blocks. In addition, the contraction of the telescopic rod 45 and the damper 46 can also reduce the excessive squeezing force on the large metallurgical blocks by the roller 47, and provide a certain buffer space for the large metallurgical blocks, so that the large metallurgical blocks stacked together will gradually be flattened under the slight squeezing force of the roller 47, so as to facilitate more uniform subsequent squeezing and avoid a large amount of wear caused by uneven force on the roller 47.

[0041] The second shaping mechanism 4 further includes a containing cylinder 48, which is fixedly connected to the first discharge pipe 22, and an external connecting cylinder 49 is fixedly connected to the outer side of the containing cylinder 48, and the external connecting cylinder 49 is fixedly connected to the bracket plate 1, wherein the second discharge pipe 24 is connected to the first shaping mechanism 3; The plugging column 40 is matched with the bottom of the holding cylinder 48, and the two are used to place the metallurgical material after sorting; 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; The top oblique plug disc 402 is used to generate suction force in the containing cylinder 48 and to pull the powder metallurgy after rolling. It is fixedly connected to the bottom of the plugging column 40. The bottom of the top oblique plug disc 402 is fixedly connected to a hydraulic rod 403, which is fixedly connected to the bottom of the inner cavity of the external cylinder 49. The outer side of the external cylinder 49 is fixedly connected to a feeding pipe 404. Then the servo motor 7 is started, so that the external shaft 8 connected to its output end will swing periodically with the first arc-shaped tooth 9, and at the same time, the second arc-shaped tooth 43 will swing periodically in the opposite direction of synchronization with it, and finally the rolling disc 47 will roll the crushed metallurgical block. After 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 oblique 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 oblique plug disc 402 is connected to the blocking column 40, so the blocking column 40 will move downward accordingly, and a large number of holes will be opened at the bottom of the containing tube 48. Then, along with the downward movement of the top oblique plug disc 402 and the suction force generated in the containing tube 48, the metallurgical powder will eventually fall on the top oblique plug disc 402 through the holes, and when the top oblique plug disc 402 moves to a position that is level with the feeding pipe 404, the powder metallurgy will follow the top of the top oblique plug disc 402 and be discharged outward through the feeding pipe 404. Thus, the metallurgical block is crushed by the rolling method of periodic left and right swinging, and finally the powder is formed.

[0042] When the present invention is used, first, the metallurgical block to be rolled 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 in the feed pipe 206 will pass through the circular hole. 205 enters into the material placing tray 21, and at the same time, with the rotation of the rotating shaft 28, the No. 1 arc strip 29 and the No. 2 arc strip 201 fixedly connected to the outer side thereof rotate clockwise, and the outer end face of the No. 1 arc strip 29 is connected to the No. 1 sorting strip 20, and the outer end face of the No. 2 arc strip 201 is connected to the No. 2 sorting strip 202, so the metallurgical block falling from the circular hole 205 will fall in front of the No. 1 sorting strip 20, wherein the orientation is determined by an angle with the clockwise direction as the positive direction. By the positive rotation of the No. 1 sorting bar 20, the large metallurgical blocks that have fallen down will be pushed forward, while the metallurgical blocks that are lower than 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 inclination angle. Therefore, 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.

[0043] 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.

[0044] 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 will be 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, 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 is connected to the rolling plate 47, so the rolling plate 47 will initially enter into 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 damping 46 will be compressed, and the rolling plate 47 will initially crush the large metallurgical blocks. 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 a synchronous and opposite direction. Finally, the rolling plate 47 will grind the crushed metallurgical blocks. 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 disk 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 disk 402 is connected to the blocking column 40, so the blocking column 40 will move downward accordingly, and a large number of holes will open at the bottom of the containing tube 48. Then, accompanied by the downward movement of the top inclined plug disk 402 and the suction force generated in the containing tube 48, the metallurgy that finally forms powder will fall on the top inclined plug disk 402 through the holes, and when the top inclined plug disk 402 moves to a position level with the feed pipe 404, the powder metallurgy will follow the top of the top inclined plug disk 402 and be discharged outward through the feed pipe 404.

[0045] The above-mentioned 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-mentioned concepts without creative work all fall within the scope of protection of the present invention.

Claims

1. An automatic shaping machine for powder metallurgy products, characterized in that: include: The sorting mechanism is used to screen and convey metallurgical blocks of different particle sizes; The first shaping mechanism is used to roll and shape metallurgical blocks with smaller particles; The second shaping mechanism is used to roll and shape metallurgical blocks with larger particles; The bottoms of the sorting mechanism, the first shaping mechanism and the second 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 the 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; The rolling plate is used for shaping and rolling metallurgical blocks, as well as for flattening metallurgical blocks.

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 with 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 with a double-headed curved rod, the top end of the double-headed curved rod is fixedly connected with a double circular plate, the inside of the double circular plate is fixedly connected with a servo motor, and the output end of the servo motor is connected with 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 sorting mechanism comprises a material placing tray, the bottom of which is fixedly connected with a transition pipe, wherein the transition pipe is used for conveying and processing fine blocks; A No. 1 discharge pipe, used for discharging and conveying the coarse metallurgical block after screening, and the No. 1 discharge pipe is fixedly connected to the outer side of the material tray; The No. 2 discharge pipe is used for discharging and conveying the fine blocks after screening, and 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 4, characterized in that: The bottom of the material tray is provided with a material distribution hole, wherein the material distribution hole is used for screening and conveying fine blocks and for limiting and blocking coarse blocks; A support column is used for supporting the sorting mechanism and is connected to the top of the bracket plate. A motor is fixedly mounted on the top of the support column, and a rotating shaft is connected to the top of the motor via a coupling.

6. The automatic shaping machine for powder metallurgy products according to claim 5, characterized in that: The outer side of the rotating shaft is respectively fixedly connected with a first arc bar and a second arc bar, wherein the number of the first arc bar and the second arc bar are both three, and they are connected to the rotating shaft in a circular array form with the two being spaced apart from each other, and the height of the first arc bar is higher than that of the second arc bar; A first sorting bar, used for traction and conveying of coarse metallurgical blocks, and fixedly connected to the outer end surface of the first arc-shaped bar; The traction piece is mutually squeezed and adapted with the No. 1 sorting bar and is used for screening and conveying coarse metallurgical blocks. The traction piece is fixedly connected to the inside of the No. 1 discharge pipe.

7. The automatic shaping machine for powder metallurgy products according to claim 6, characterized in that: The outer end surface of the second arc-shaped strip is fixedly connected with the second sorting strip, and the bottom of the second sorting strip is slidably matched with 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.

8. The automatic shaping machine for powder metallurgy products according to claim 5, characterized in that: 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; A top plate, used for indirectly preventing the input of metallurgical blocks, is fixedly connected to the short shaft, and a feed pipe is arranged 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.

9. The automatic shaping machine for powder metallurgy products according to claim 1, characterized in that: The second shaping mechanism further comprises a containing cylinder, the containing cylinder is fixedly connected to the first discharging pipe, an external connecting cylinder is fixedly connected to the outer side of the containing cylinder, the external connecting cylinder is fixedly connected to the bracket plate, wherein the second discharging pipe is connected to the first shaping mechanism; The blocking column is overlapped and matched with the bottom of the containing cylinder, and the two are used for placing the metallurgical materials after sorting.

10. The automatic shaping machine for powder metallurgy products according to claim 9, 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 disk 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 disk is fixedly connected to a hydraulic rod, and the hydraulic rod is fixedly connected to the bottom of the inner cavity of the external connecting tube. The outside of the external connecting tube is fixedly connected to a feed pipe.

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