Efficient powder metallurgy product tray arranging machine

Abstract

The invention discloses an efficient powder metallurgy product wobble plate machine, and relates to the technical field of wobble plate machines, the efficient powder metallurgy product wobble plate machine comprises a mounting table, a driving arm is fixedly mounted on the mounting table, a telescopic rod is fixedly assembled on the driving arm, a grabbing mechanism is arranged at the telescopic end of the telescopic rod, and the grabbing mechanism comprises a driving assembly and a clamping unit; the clamping unit comprises two symmetrically-arranged L-shaped supporting plates, the bottom ends of the supporting plates are fixedly connected with scraping plates, and a rubber plate is arranged on one side of the mounting table. Gear compacts are stably supported from the two sides of the bottoms of the gear compacts through the two supporting plates correspondingly, grabbing of the gear compacts is achieved, pressure is evenly distributed at the bottoms of the compacts, and therefore the gear compacts can be grabbed more stably. The risk that convex teeth are extruded and damaged when the gear pressed blank is grabbed is effectively avoided, in the process that the pressed blank is put down, sintered particles existing on a disc are scraped to the two sides through the scraping plate, the pressed blank disc placing position deviation caused by the sintered particles is avoided, the pressed blank disc placing is more accurate, and the risk that the sintered particles scratch the surface of the pressed blank is eradicated.

Description

Technical Field

[0001] The present invention relates to the technical field of palletizing machines, and particularly to an efficient palletizing machine for powder metallurgy products. Background Art

[0002] Powder metallurgy products refer to products with a certain shape, size, and performance made from metal powders through a series of powder metallurgy processes such as forming and sintering. The production process of powder metallurgy products mainly includes the following steps: First, the metal or alloy powder is mixed, pressed, etc. to form the required shape in a mold to obtain a green compact. Then, after the green compact is palletized, it is placed in a high-temperature furnace for sintering. During the sintering process, the powder particles are combined with each other through mechanisms such as atomic diffusion, increasing the density and strength of the product, and obtaining the final performance and dimensional accuracy.

[0003] In current workshop production, in order to pursue efficient palletizing operations, a palletizing machine is usually used to perform palletizing operations on green compacts. The traditional palletizing machine mainly consists of a driving mechanism and a grasping fixture. Its operating principle is that the grasping fixture grabs the workpiece from the conveyor belt, and then the driving mechanism drives the grasping fixture and the workpiece to move above the tray to complete the palletizing action of the workpiece. However, when it comes to the palletizing task of gear workpiece green compacts, problems arise. When the clamping jaw grabs the green compact, the convex teeth on the green compact will be squeezed by the clamping jaw, and the squeezing force needs to increase with the weight of the green compact to ensure the stable grasping of the green compact. Since the contact area between the convex teeth and the clamping jaw is small, the squeezing force received by the convex teeth is relatively concentrated. When the squeezing force is too large, the convex teeth are easily damaged by extrusion. And during the grasping process, it cannot be ensured that the convex teeth of the green compact are aligned with the direction of the clamping jaw. If the squeezing force acts on the edge of the convex teeth, the possibility of damage will be further increased. In addition, after the gear green compact is placed on the tray, the metal powder remaining in the tooth groove gap will fall into the tray. In the subsequent sintering process of the green compact, these metal powders on the tray will form hard sintered particles under the action of high temperature. This will not only interfere with the palletizing accuracy of the green compact in the subsequent use of the tray, resulting in deviation in the placement position of the green compact, but more seriously, these hard particles are very likely to scratch the surface of the green compact, ultimately greatly reducing the production quality of the powder metallurgy product and unable to meet the production requirements of high-quality products. Summary of the Invention

[0004] The purpose of the present invention is to propose an efficient palletizing machine for powder metallurgy products to solve the problems that when the clamping jaw grabs the gear green compact, the convex teeth of the gear green compact are easily damaged under excessive squeezing force, and during palletizing, the sintered particles remaining on the tray will reduce the palletizing accuracy and even scratch the green compact.

[0005] To achieve the above objectives, the present invention adopts the following technology: a high-efficiency powder metallurgy product plate placing machine: comprising a mounting platform, a driving arm fixedly mounted on the mounting platform, a telescopic rod fixedly mounted on the driving arm, a gripping mechanism provided on the telescopic end of the telescopic rod, the gripping mechanism comprising a driving assembly and a clamping unit, the clamping unit comprising two symmetrically arranged L-shaped supporting plates, a scraper fixedly connected to the bottom end of the supporting plate, and a rubber plate provided on one side of the mounting platform; The cleaning mechanism includes a filter box, the outer side of the filter box is connected to an air inlet nozzle through an air pipe, and an air pump connected to the filter box through the air pipe is fixedly installed on the mounting table; When the driving assembly drives the two supporting plates to close, the gear compact is lifted and grabbed; when the two supporting plates are opened to release the compact, the scraper scrapes the sintered particles on the tray to both sides.

[0006] As a further description of the above technical solution: the driving assembly includes a connecting seat fixed to the telescopic end of the telescopic rod, a shell is fixed between the connecting seat and the filter box, a cylinder is fixedly installed inside the connecting seat, and two sliders fixed to two support plates are slidably connected inside the shell, and an extrusion block fixed to the movable end of the cylinder is slidably connected between the two sliders.

[0007] As a further description of the above technical solution: it also includes a limit assembly, which includes a connecting rod that passes through the support plate and is slidably connected to the support plate, one end of the connecting rod is fixedly connected to the mounting plate, and the other end is fixedly connected to the support plate with a tension spring.

[0008] As a further description of the above technical solution: a flexible belt is fixedly connected between adjacent mounting plates. After the two supporting plates grab the compact, the flexible belt is wrapped around the outside of the compact to form an air flow channel between the teeth of the compact and the flexible belt.

[0009] As a further description of the above technical solution: the air inlet nozzle is fixed on the flexible belt and the bottom is connected to the air flow channel, and the inner wall of the support plate is provided with an air flow groove.

[0010] As a further description of the above technical solution: it also includes a pressing unit, which includes a compression spring fixed to the bottom of the filter box, an annular pressure plate fixed to the bottom end of the compression spring, and a support plate fixedly connected to the inner wall of the annular pressure plate.

[0011] As a further description of the above technical solution: it also includes a positioning mechanism, which includes a positioning shaft rotatably connected to the bottom of the extrusion block, the bottom end of the positioning shaft is fixedly connected to a mounting cylinder, and the mounting cylinder is slidably connected to support blocks around it.

[0012] As a further description of the above technical solution: A pressing member is slidably connected inside the installation cylinder. A return spring is fixed between the installation cylinder and the pressing member. A support column is fixedly connected to the bottom of the filter box. A motor with a driving shaft and a positioning shaft fixedly installed is fixedly installed at the bottom of the extrusion block.

[0013] In summary, due to the adoption of the above technology, for an efficient powder metallurgy product tray machine, the beneficial effects of the present invention are: When the present application is used to place the gear green compact on the tray, the gear green compact is steadily lifted from both sides of the bottom of the gear green compact by two supporting plates, realizing the grasping of the gear green compact. The contact area between the supporting plate and the gear green compact is greatly increased compared with the traditional clamping jaws, and the pressure is evenly distributed at the bottom of the green compact, avoiding the concentration of pressure at the convex teeth of the green compact, effectively avoiding the risk of extrusion damage to the convex teeth of the gear green compact during grasping, ensuring the integrity of the gear green compact after being placed on the tray, and this grasping method can also be applicable to other special-shaped green compacts that are difficult to grasp by clamping jaws and suction cups, having stronger applicability.

[0014] During the process of the two supporting plates opening to put down the gear green compact, the scraper moves along with the supporting plate to scrape the sintered particles on the tray to both sides, clearing a flat and particle-free surface for the placement of the green compact, thereby effectively avoiding the deviation of the placement position of the green compact caused by sintered particles, making the placement of the green compact more accurate, improving the uniformity of heat distribution during sintering, and at the same time eliminating the risk of scratching the surface of the green compact by sintered particles, ensuring the quality of the green compact.

[0015] The present application limits the grasped green compact through the limiting component, which can prevent the position deviation of the green compact after being grasped, thereby improving the placement accuracy of the green compact. Moreover, when the powder in the tooth gaps of the green compact is removed by the cleaning mechanism, the flexible belt can bend to form an air flow channel between the tooth gaps and the flexible belt, which helps to improve the ability of the air flow to carry the powder, enhance the powder removal effect, avoid the powder falling into the tray during placement and affecting the stability of the placed green compact, and also reduce the generation of sintered particles. Moreover, the vibration generated when the scraper scrapes the sintered particles adhering to the tray can be transmitted to the green compact, promoting the separation of the powder in the tooth gaps of the gear green compact from the green compact through slight vibration, further strengthening the powder removal effect.

[0016] In the process of grabbing the green sheet in the present application, the gear green sheet can be positioned by the positioning mechanism to improve the placement accuracy of the green sheet. After the green sheet is grabbed, the positioning mechanism can be used to drive the gear green sheet to rotate and adjust the position of the green sheet so that the cleaning mechanism can clean the tooth gaps around the green sheet to improve the powder cleaning effect. In this process, the rotation of the green sheet can also scrape off the powder adhered to the flexible belt to prevent the powder from adhering to the surface of the flexible belt and affecting the next grabbing. It is worth mentioning that some gear green sheets have a notch on the middle hole wall, and the position of the notch can be adjusted by the positioning mechanism to make the angle of the green sheet uniform, ensure the sintering effect, and facilitate the use of the workpiece in subsequent processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shows an overall schematic diagram provided according to an embodiment of the present invention; Figure 2 A schematic diagram of a driving arm provided according to an embodiment of the present invention is shown; Figure 3 A schematic diagram of a housing provided according to an embodiment of the present invention is shown; Figure 4 A schematic diagram of a slider provided according to an embodiment of the present invention is shown; Figure 5 A schematic diagram of a position limiting assembly provided in an embodiment of the present invention is shown; Figure 6 An exploded view of a mounting barrel according to an embodiment of the present invention is shown; Figure 7 shows a transverse cross-sectional view of a filter cartridge provided according to an embodiment of the present invention; Figure 8 shows a longitudinal cross-sectional view of a filter cartridge provided according to an embodiment of the present invention; Figure 9 The embodiment of the present invention provides Figure 8 Enlarged view of point A in the middle.

[0018] Legend: 10. Mounting platform; 11. Driving arm; 12. Telescopic rod; 20. Grabbing mechanism; 21. Driving assembly; 211. Connecting seat; 212. Cylinder; 213. Housing; 214. Extrusion block; 215. Slider; 22. Clamping unit; 221. Support plate; 222. Scraper; 223. Rubber sheet; 30. Cleaning mechanism; 31. Filter box; 32. Air inlet nozzle; 33. Air pump; 40. Limiting assembly; 41. Mounting plate; 42. Connecting rod; 43. Tension spring; 44. Flexible belt; 50. Pressing unit; 51. Compression spring; 52. Annular pressure plate; 53. Support plate; 60. Positioning mechanism; 61. Positioning shaft; 62. Installation cylinder; 63. Support block; 64. Return spring; 65. Pressing member; 66. Support column; 67. Motor. Detailed implementation manner

[0019] The following will clearly and completely describe a high-efficiency powder metallurgy product tray arranging machine in the technical solutions of the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0020] As Figures 1 - 9 shown, a high-efficiency powder metallurgy product tray arranging machine provided by the present invention includes an installation table 10, a driving arm 11 is fixedly installed on the installation table 10, a telescopic rod 12 is fixedly assembled on the driving arm 11, and a grasping mechanism 20 is arranged on the telescopic end of the telescopic rod 12. By controlling the telescopic movement of the telescopic rod 12, the height of the grasping mechanism 20 can be adjusted, so that the grasping mechanism 20 can grasp and lift and then put down the powder metallurgy product green compact to realize the tray arranging of the green compact. The grasping mechanism 20 includes a driving component 21 and a clamping unit 22. The clamping unit 22 includes two symmetrically arranged L-shaped supporting plates 221. A scraping plate 222 is fixedly connected to the bottom end of the supporting plate 221. A rubber plate 223 is arranged on one side of the installation table 10, and a tray for tray arranging is placed on the installation table 10.

[0021] Referring to Figure 2 , Figure 3 and Figure 4 , it further includes a cleaning mechanism 30. The cleaning mechanism 30 includes a filter box 31. The filter box 31 is composed of a cover body and a storage cylinder connected by threads. A filter screen is arranged inside the cover body of the filter box 31. The storage cylinder is convenient for disassembling and cleaning the internal powder. An air inlet nozzle 32 is connected to the outside of the filter box 31 through an air pipe. An air pump 33 communicated with the filter box  31 through an air pipe is fixedly installed on the installation table 10. Through the air pump 33, the air with powder can enter the filter box 31 through the air inlet nozzle 32 and then be discharged, so that the powder in the air is filtered in the filter box 31.

[0022] The driving assembly 21 includes a connecting seat 211 fixed to the telescopic end of the telescopic rod 12. An outer shell 213 is fixed between the connecting seat 211 and the filter box 31. A cylinder 212 is fixedly installed inside the connecting seat 211. Two sliders 215 respectively fixed to two support plates 221 are slidably connected inside the outer shell 213. An extrusion block 214 fixed to the movable end of the cylinder 212 is slidably connected between the two sliders 215. When the cylinder 212 drives the extrusion block 214 to move downward, the extrusion block 214 pushes the two sliders 215 to both sides, driving the two support plates 221 to open. When the cylinder 212 drives the extrusion block 214 to move upward, the extrusion block 214 pushes the two sliders 215 toward the middle, driving the two support plates 221 to close. The green compact is grasped by the opening and closing of the support plates 221.

[0023] After the gear green compact is conveyed to the rubber plate 223 by an external conveyor belt, the grasping mechanism 20 is moved to directly above the green compact by the driving arm 11. Then, the telescopic rod 12 is controlled to extend to drive the grasping mechanism 20 to descend, so that the support plates 221 and the scraping plate 222 press down the rubber plate 223. At this time, the scraping plate 222 sinks into the rubber plate 223. Then, when the driving assembly 21 drives the two support plates 221 to close, the bottom ends of the support plates 221 and the scraping plate 222 can be inserted between the green compact and the rubber plate 223. Then, by controlling the telescopic rod 12 to shorten, the two support plates 221 lift and grasp the gear green compact. Under the deformation effect of the rubber plate 223, the support plates 221 can enter below the green compact and lift and grasp the green compact without colliding and squeezing the green compact, avoiding damage to the green compact. Moreover, this grasping method can also be applicable to other special-shaped green compacts that are difficult to grasp by clamping jaws and suction cups, having stronger applicability. When the support plates 221 move the green compact into the tray, the scraping plate 222 contacts the tray. When the two support plates 221 open and put down the green compact, the two scraping plates 222 are driven to scrape the sintered particles on the tray to both sides, cleaning a flat surface for the green compact before putting down the green compact, avoiding the existence of sintered particles on the tray affecting the placement of the green compact. Moreover, the vibration generated when the scraping plate 222 scrapes the sintered particles adhered to the tray can be transmitted to the green compact, promoting the separation of the powder in the tooth gaps of the gear green compact from the green compact through slight vibration, further strengthening the powder removal effect.

[0024] Refer to Figure 4 and Figure 5, in order to prevent the green compact from shifting after being grasped by the two pallets 221, a limiting component 40 is further included. The limiting component 40 includes a connecting rod 42 that penetrates through the pallet 221 and is slidably connected to the pallet 221. One end of the connecting rod 42 is fixedly connected with a mounting plate 41, and a tension spring 43 is fixedly connected between the other end and the pallet 221. A flexible belt 44 is fixedly connected between adjacent mounting plates 41. After the two pallets 221 grasp the green compact, the green compact squeezes the flexible belt 44, causing the mounting plate 41 to move away from the green compact. The mounting plate 41 drives the connecting rod 42 to move, stretching the tension spring 43. At this time, under the elastic force of the tension spring 43, the flexible belt 44 bends and wraps around the outside of the convex teeth of the green compact, restricting the shift of the green compact during grasping and movement, ensuring the accuracy of palletizing. Moreover, the flexible belt 44 contacts the gear green compact, closing the tooth gaps of the green compact, and forming an air flow channel between the tooth gaps of the green compact and the flexible belt 44. When using the cleaning mechanism 30 to clean the powder in the tooth gaps, the air flow passing through the tooth gaps will be more concentrated, and a greater pressure difference can be formed between the air flow channel and the outside, improving the effect of the cleaning mechanism 30 in cleaning the powder in the tooth gaps of the green compact.

[0025] Referring to Figure 7 , in order to further enhance the effect of cleaning the powder in the tooth gaps of the green compact through air flow, the air inlet nozzle 32 is fixed on the flexible belt 44 and its bottom is communicated with the air flow channel. The bottom surface of the air inlet nozzle 32 contacts the top surface of the gear green compact. A folding groove is provided on one side of the air inlet nozzle 32, making it easier for the air inlet nozzle 32 to bend. When the flexible belt 44 bends, it can drive the air inlet nozzle 32 to bend adaptively, keeping the air inlet nozzle 32 in communication with the air flow channel, ensuring that the suction force generated by the air pump 33 can fully act on the air flow channel and guaranteeing the suction effect on the powder. An air flow groove is provided on the inner wall of the pallet 221. When the two pallets 221 open, the residual powder located below the green compact that has not been scraped off can be sucked into the air flow channel through the air flow groove and removed together with the powder in the tooth gaps of the green compact, preventing the powder from being located between the green compact and the tray, reducing the friction between the tray and the green compact, and preventing the green compact from shifting during the transportation of the tray.

[0026] Referring to Figure 6The annular pressure plate 52 is pressed against the top surface of the pressing plate by the elastic force of the pressure spring 51 when the two supporting plates 221 are opened to put the pressing plate down. The bottom surface of the annular pressure plate 52 is made of rubber material, and there is friction between the annular pressure plate 52 and the pressing plate to avoid the different friction between the two supporting plates 221 and the pressing plate, which causes the pressing plate to move toward the direction of one of the supporting plates 221 when the two supporting plates 221 are opened, causing the swing plate position to deviate. The inner wall of the annular pressure plate 52 is fixedly connected with a support plate 53.

[0027] Reference Figures 6 - 9 , also includes a positioning mechanism 60, the positioning mechanism 60 includes a positioning shaft 61 rotatably connected to the bottom of the extrusion block 214, the bottom end of the positioning shaft 61 is fixedly connected to the mounting cylinder 62, the mounting cylinder 62 is slidably connected to the support block 63 around, the outer side of the support block 63 is made of rubber material to prevent the compact from being scratched, when the two support plates 221 are opened to grab the compact, the extrusion block 214 drives the positioning shaft 61 to move downward, so that the mounting cylinder 62 and the support block 63 enter the hole in the middle of the compact to position the compact.

[0028] The interior of the mounting cylinder 62 is slidably connected to a pressing piece 65, and a return spring 64 is fixed between the mounting cylinder 62 and the pressing piece 65. The bottom of the filter box 31 is fixedly connected to a support column 66, and the bottom of the extrusion block 214 is fixedly installed with a motor 67 fixed to the driving shaft and the positioning shaft 61. When the two supporting plates 221 are closed, the extrusion block 214 drives the positioning shaft 61 to move upward, and when the positioning shaft 61 drives the mounting cylinder 62, the return spring 64 and the pressing piece 65 to move upward, the pressing piece 65 lifts the annular pressure plate 52 through the support plate 53, and then the support plate 53 is supported by the support column 66, and the mounting cylinder 62 continues to move upward so that the pressing piece 65 is pressed into the mounting cylinder 31 under the support of the support column 66 and the support plate 53. Inside the cylinder 62, the support block 63 is extruded to support and tighten the inner wall of the gear blank. At this time, by starting the motor 67, the positioning shaft 61, the mounting cylinder 62 and the support block 63 can be driven to rotate, driving the gear blank to deflect, adjusting the angle of the gear blank, and making the various tooth gaps of the gear blank pass through the bottom of the air inlet nozzle 32 to remove the powder in each tooth gap and improve the powder removal effect. During this process, the rotation of the gear blank can also scrape off the powder adhered to the flexible belt 44 to prevent the powder from adhering to the surface of the flexible belt 44 and affecting the next grabbing. The purpose of the lower pressing piece 65 to lift the annular pressure plate 52 through the support plate 53 is to make the gear blank separate from the annular pressure plate 52 when rotating, thereby reducing the rotational resistance.

[0029] Working principle: After the external conveyor belt transports the gear blank to the rubber plate 223, the driving arm 11 drives the grasping mechanism 20 to move above the blank, and the telescopic rod 12 is controlled to extend to drive the grasping mechanism 20 to descend to grasp the blank; During the descent of the grasping mechanism 20, the cylinder 212 drives the extrusion block 214 to move downward, causing the two sliders 215 to drive the two supporting plates 221 to open. The supporting plates 221 continue to descend until they squeeze the rubber plate 223 into a depression, making the bottom end of the supporting plates 221 lower than the bottom surface of the blank. Then, the cylinder 212 is controlled to drive the extrusion block 214 to move upward, driving the two sliders 215 and the supporting plates 221 to close. The bottom end of the supporting plates 221 enters between the blank and the rubber plate 223 to achieve the grasping of the blank. During this process, the annular pressing plate 52 presses on the blank to prevent the blank from shifting; During the closing process of the supporting plates 221, the blank squeezes the flexible belt 44, causing the mounting plate 41 to move away from the blank. The mounting plate 41 drives the connecting rod 42 to move, stretching the tension spring 43. At this time, under the elastic force of the tension spring 43, the flexible belt 44 bends and wraps around the outside of the blank, restricting the offset of the blank during grasping and movement. And an air flow channel is formed between the bent flexible belt 44 and the tooth gaps of the blank. The air pump 33 is started to suck air, so that the air sequentially passes through the air flow grooves on the inner wall of the supporting plate 221, the air flow channel, the air inlet nozzle 32 and the filter box 31. When the air flow passes through the air flow channel, the powder is carried out from the inside of the channel. Then the air flow passes through the filter box 31 to filter out the powder; The extrusion block 214 continues to move upward until the two supporting plates 221 are completely closed. During this process, the extrusion block 214 drives the positioning shaft 61 to move upward. When the positioning shaft 61 drives the mounting cylinder 62, the return spring 64 and the pressing part 65 to move upward, the pressing part 65 lifts the annular pressing plate 52 through the support plate 53. Then the support plate 53 is supported by the support column 66. The mounting cylinder 62 continues to move upward, causing the pressing part 65 to be pressed into the mounting cylinder 62 under the support of the support column 66 and the support plate 53, squeezing out the support block 63 to support and fasten the inner wall of the gear blank. The motor 67 is started to drive the positioning shaft 61, the mounting cylinder 62 and the support block 63 to rotate, driving the gear blank to deflect, adjusting the angle of the gear blank, and making each tooth gap of the gear blank pass through the bottom of the air inlet nozzle 32 to remove the powder in each tooth gap and improve the powder removal effect; When the supporting plates 221 move the blank into the tray, the scraper 222 contacts the tray. When the two supporting plates 221 open and place the blank down, they drive the two scrapers 222 to scrape the sintered particles on the tray to both sides, cleaning a flat surface for the blank before placing the blank to avoid the existence of sintered particles on the tray affecting the placement of the blank.

[0030] As described above, it is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An efficient powder metallurgy product placing machine, comprising a mounting table (10), a driving arm (11) fixedly installed on the mounting table (10), a telescopic rod (12) fixedly assembled on the driving arm (11), and a grasping mechanism (20) arranged on the telescopic end of the telescopic rod (12), characterized in that, The gripping mechanism (20) includes a driving component (21) and a clamping unit (22). The clamping unit (22) includes two symmetrically arranged L-shaped pallets (221). A scraping plate (222) is fixedly connected to the bottom end of the pallet (221). A rubber plate (223) is provided on one side of the mounting table (10). It further includes a cleaning mechanism (30). The cleaning mechanism (30) includes a filter box (31). An air inlet nozzle (32) is connected to the outside of the filter box (31) through an air pipe. An air pump (33) communicated with the filter box (31) through an air pipe is fixedly installed on the mounting table (10). When the driving component (21) drives the two pallets (221) to close, the gear blank is lifted and gripped. When the two pallets (221) open and press down the blank, the scraping plate (222) scrapes the sintered particles on the disc tool to both sides.

2. The high-efficiency powder metallurgy product placing machine according to claim 1, characterized in that, The driving component (21) includes a connecting seat (211) fixed to the telescopic end of the telescopic rod (12). A housing (213) is fixed between the connecting seat (211) and the filter box (31). A cylinder (212) is fixedly installed inside the connecting seat (211). Two sliders (215) respectively fixed to the two pallets (221) are slidably connected inside the housing (213). An extrusion block (214) fixed to the movable end of the cylinder (212) is slidably connected between the two sliders (215).

3. The high-efficiency powder metallurgy product plate-staging machine according to claim 1, characterized in that: It further includes a limiting component (40). The limiting component (40) includes a connecting rod (42) passing through the pallet (221) and slidably connected to the pallet (221). One end of the connecting rod (42) is fixedly connected with a mounting plate (41), and a tension spring (43) is fixedly connected between the other end and the pallet (221).

4. The high-efficiency powder metallurgy product plate-staging machine according to claim 3, characterized in that: A flexible belt (44) is fixedly connected between adjacent mounting plates (41). After the two pallets (221) grip the blank, the flexible belt (44) wraps around the outside of the blank, forming an air flow channel between the tooth gaps of the blank and the flexible belt (44).

5. An efficient powder metallurgy product placing machine according to claim 4, characterized in that, The air inlet nozzle (32) is fixed on the flexible belt (44) and its bottom is communicated with the air flow channel. An air flow groove is formed on the inner wall of the pallet (221).

6. An efficient powder metallurgy product tray machine according to claim 1, characterized in that It further includes a pressing unit (50). The pressing unit (50) includes a compression spring (51) fixed to the bottom of the filter box (31). A ring-shaped pressing plate (52) is fixed to the bottom end of the compression spring (51). Support plates (53) are fixedly connected to the inner wall of the ring-shaped pressing plate (52).

7. An efficient powder metallurgy product tray machine according to claim 2, characterized in that, It further includes a positioning mechanism (60). The positioning mechanism (60) includes a positioning shaft (61) rotatably connected to the bottom of the extrusion block (214). A mounting cylinder (62) is fixedly connected to the bottom end of the positioning shaft (61). Support blocks (63) are slidably connected around the mounting cylinder (62).

8. An efficient powder metallurgy product placing machine according to claim 7, characterized in that, A pressing member (65) is slidably connected inside the mounting cylinder (62), a return spring (64) is fixed between the mounting cylinder (62) and the pressing member (65), a support column (66) is fixedly connected to the bottom of the filter box (31), and a motor (67) with a driving shaft fixedly installed at the bottom of the extrusion block (214) and a positioning shaft (61) is fixedly installed at the bottom of the extrusion block (214).

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