A powder metallurgy press

Abstract

The application discloses a kind of powder metallurgy stamping equipment, belong to powder metallurgy field, a kind of powder metallurgy stamping equipment, including punch press body, the upper side of horizontal part of punch press body and the lower side of hydraulic seat are equipped with cleaning component, cleaning component includes the moving column of fixed connection in the lower part of the left and right sides of hydraulic seat, the upper part of the left and right sides of punch press body is rotatably connected with rotary drum, the powder material attached in the wide mouth of female mold due to static electricity is cleaned by the rotatable cleaning brush of being set, since the gear will drive cleaning brush to rotate above female mold during the process that hydraulic seat moves downward, so that cleaning brush can remove the powder material remaining at the wide mouth of female mold, avoid part of powder raw materials from being attached in inlet due to static electricity, to prevent powder raw materials from not being able to completely enter female mold inside in stamping process and affect the stamping quality of powder.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of powder metallurgy, more particularly, to a powder metallurgy stamping device. BACKGROUND

[0002] Stamping is a forming process that uses a press machine and a die to apply force to sheet metal, strip metal, pipe and profiled material, etc., to make them produce plastic deformation or separation, thereby obtaining the desired shape and size of the stamping parts. Powder stamping, in short, is a stamping part produced by powder metallurgy technology. It first makes metal powder into products with desired shape and performance through processes such as pressing and sintering, and then further processes these products using stamping dies to obtain the final product.

[0003] According to the material and performance requirements of the desired product, suitable metal powder is selected for preparation. These powders may be composed of a single metal element or a mixture of multiple metal elements to achieve specific strength, hardness, corrosion resistance or magnetic properties. The metal powder is placed in the die, and the powder is subjected to pressure by a pressing device to form a "green body" with the desired shape. During the pressing process, the powder particles will be in close contact and local plastic deformation, thereby forming a preliminary product with certain strength and shape stability.

[0004] In the prior art, in order to improve the conveying efficiency of powder raw materials with poor fluidity, the mother die is usually designed with a wide mouth, which is also beneficial to the uniform filling of the powder. However, the entrance of the wide-mouth die often causes some powder raw materials to adhere to the entrance due to static electricity, which affects the stamping quality because the powder raw materials cannot completely enter the interior of the mother die during the stamping process. SUMMARY

[0005] In view of the problems existing in the prior art, the purpose of the present application is to provide a powder metallurgy stamping device.

[0006] To solve the above problems, the present application adopts the following technical solution, which can remove the residual powder material at the wide mouth of the mother die by a cleaning brush, so as to prevent the powder raw materials from not being able to completely enter the interior of the mother die during the stamping process and affecting the stamping quality of the powder.

[0007] A powder metallurgy stamping device, comprising a stamping machine body and a hydraulic cylinder fixedly installed at the upper end inside the stamping machine body, wherein the telescopic end of the hydraulic cylinder is fixedly installed with a hydraulic seat, a moving groove is formed on the upper side of the horizontal part of the stamping machine body, a mother die is slidably connected inside the moving groove, a control panel is fixedly installed on the front surface of the horizontal part of the stamping machine body, and a cleaning component is provided on the upper side of the horizontal part of the stamping machine body and the lower side of the hydraulic seat.

[0008] The cleaning component includes movable columns fixedly connected to the lower left and right sides of the hydraulic base. Fixed columns are fixedly connected to the outer sides of the movable columns. Rotary cylinders are rotatably connected to the upper left and right sides of the horizontal part of the press body. The two rotary cylinders are respectively sleeved on the outer sides of the two movable columns. Guide grooves are opened inside the rotary cylinders. The fixed columns are slidably connected in the guide grooves. Gear rings are fixedly connected to the outer sides of the rotary cylinders. Gears are rotatably connected to the upper side of the horizontal part of the press body. The gear rings mesh with the left and right sides of the gear. A funnel groove is fixedly opened through the middle of the gear. A cleaning brush is provided inside the funnel groove. The cleaning brush is rotatably attached to the upper side of the master mold.

[0009] Furthermore, there are two fixed columns on the outer side of the movable column, the two guide grooves are both spirally intersecting, there are multiple cleaning brushes, and a tensioning assembly is provided on the upper side of the gear and the inner side of the funnel groove. The tensioning assembly includes a sliding groove arranged in a ring array inside the funnel groove.

[0010] Furthermore, multiple cleaning brushes are slidably connected in multiple grooves. A pull rope is fixedly connected to the side of the cleaning brush away from the mother mold. A fixed seat is fixedly connected to the upper side of the gear in a circular array. The pull rope passes through the fixed seat and extends to the upper side of the fixed seat. A connecting block is fixedly connected to the other end of the pull rope. The connecting block is made of magnetic metal. Guide rods are fixedly connected to the front and rear sides of the lower end of the connecting block. Two corresponding guide rods pass through the same fixed seat. First limiting rods slide through the left and right ends of the hydraulic seat. A magnetic ring is fixedly connected to the bottom end of the two first limiting rods. After the magnetic ring moves downward, it magnetically attracts multiple connecting blocks. After the magnetic ring attracts the connecting blocks, it can pull the cleaning brush upward by the pull rope. Each of the multiple fixed seats has an upward-sloping movable groove. A locking block is slidably connected in the movable groove. The locking block is made of magnetic metal. After the magnetic ring moves downward, it magnetically attracts the locking block. After the locking block moves upward, it locks the pull rope.

[0011] Furthermore, the gear is provided with a cleaning component, which includes cleaning strips arranged in a longitudinal array inserted into multiple grooves, and the multiple cleaning strips respectively slide in contact with multiple cleaning brushes.

[0012] Furthermore, the stamping machine body is equipped with impact components inside and on both sides, and the impact components include magnetic blocks fixedly connected to the opposite surfaces of the two moving columns.

[0013] Furthermore, the movable groove has through grooves on both the left and right sides, with multiple through grooves on each side. These multiple through grooves are connected to the same movable groove. A fixing block is fixedly connected inside the through groove. A first pressure spring is fixedly connected to the side of the fixing block closest to the mother mold. A bumper is fixedly connected to the other end of the first pressure spring. The bumper is slidably connected inside the through groove. A magnetic column is fixedly connected to the side of the bumper closest to the first pressure spring. After the magnetic block moves downward, it magnetically attracts the magnetic column. The side of the bumper closest to the mother mold makes pressing contact with the mother mold.

[0014] Furthermore, the interior of the horizontal part of the press body, the interior of the hydraulic base, and the lower side are all provided with a material ejection assembly, which includes a second pressure spring fixedly connected to the lower side of the moving groove.

[0015] Furthermore, one end of the second pressure spring is fixedly connected to the lower side of the female mold, a support column is fixedly connected to the lower side of the inner side of the moving groove, the female mold is sleeved on the outside of the support column, a limit groove is opened on the lower side of the hydraulic seat, and there are two limit grooves. A second limit rod is slidably connected inside the limit groove, and a stamping block is fixedly connected to the bottom end of the two second limit rods. After the stamping block moves downward, it presses against the upper side of the support column. A pressure sensor is fixedly installed inside the hydraulic seat. After the lower side of the stamping block contacts the support column, the stamping block presses against the pressure sensor. A first electric push rod is fixedly connected to the lower side of both the left and right ends of the hydraulic seat. An extrusion plate is fixedly connected to the bottom end of the first electric push rod. After the extrusion plate moves downward, it presses against the upper side of the female mold. A second electric push rod is fixedly installed inside the horizontal part of the stamping machine body. A push plate is fixedly connected to one end of the front of the second electric push rod. The push plate enters the moving groove after being pushed by the second electric push rod.

[0016] Furthermore, a collection assembly is provided both inside and on the upper side of the horizontal section of the press body, and the collection assembly includes a collection cavity opened on the upper side of the horizontal section of the press body.

[0017] Furthermore, the lower interior side of the collection cavity has through holes arranged in a rectangular array, and the lower interior side of the collection cavity is inclined from back to front.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] (1) The present invention uses a rotatable cleaning brush to clean the powder material that adheres to the wide opening of the master mold due to static electricity. As the hydraulic seat moves downward, the gear will drive the cleaning brush to rotate above the master mold, so that the cleaning brush can remove the powder material remaining at the wide opening of the master mold. This avoids some powder material adhering to the inlet due to static electricity, so as to prevent the powder material from not being able to fully enter the inside of the master mold during the stamping process and thus affecting the stamping quality of the powder.

[0020] (2) The present invention uses a cleaning brush that is pulled out from the wide opening of the mother mold after the hydraulic seat moves downward. Since the hydraulic seat will pull the cleaning brush out from the wide opening of the mother mold before entering the mother mold, the hydraulic seat cannot squeeze the cleaning brush during the process of stamping the material. This not only allows the residual material to be sent into the mother mold before the powder material is stamped, but also avoids the cleaning brush from affecting the stamping efficiency of the hydraulic seat on the powder material.

[0021] (3) The present invention uses a cleaning brush to clean the cleaning strip during the process of being pulled out of the master mold. As the cleaning brush is pulled up, the cleaning strip removes the powder material attached to the surface of the brush bristles. On the one hand, it prevents the cleaning brush from bringing the powder material into the groove and causing the cleaning brush to be worn by the powder material during the up and down movement. On the other hand, it also avoids the waste of powder material, which would affect the stamping efficiency due to insufficient powder material during the stamping process. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0024] Figure 3 For the present invention Figure 2 Enlarged view of point A;

[0025] Figure 4 This is a cross-sectional view of the movable groove of the present invention;

[0026] Figure 5 This is a cross-sectional view of the gear structure of the present invention;

[0027] Figure 6 This is a cross-sectional structural schematic diagram of the hydraulic base of the present invention;

[0028] Figure 7 This is a cross-sectional view of the master mold of the present invention;

[0029] Figure 8 This is a planar cross-sectional view of the sleeve of the present invention.

[0030] Explanation of the labels in the diagram:

[0031] 1. Press body; 11. Hydraulic base; 12. Moving groove; 13. Mother mold; 14. Control panel; 2. Cleaning components; 21. Moving column; 22. Fixed column; 23. Rotary drum; 24. Guide groove; 25. Gear ring; 26. Gear; 261. Funnel groove; 27. Cleaning brush; 28. Stretching assembly; 281. Slide groove; 282. Pull rope; 283. Fixed base; 284. Connecting block; 285. Guide rod; 286. First limit rod; 287. Magnetic ring; 288. Moving groove; 289. Locking block; 29. ​​Cleaning assembly; 2 91. Cleaning strip; 3. Impacting component; 31. Magnetic block; 32. Through groove; 33. Fixing block; 34. First pressure spring; 35. Magnetic column; 36. Impacting block; 37. Unloading assembly; 371. Second pressure spring; 372. Support column; 373. Limiting groove; 374. Second limiting rod; 375. Stamping block; 376. Pressure sensor; 377. First electric push rod; 378. Extrusion plate; 379. Second electric push rod; 3791. Push plate; 38. Collection assembly; 381. Collection chamber; 382. Through hole; 4. Hydraulic cylinder. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0033] Please see Figures 1 to 8 A stamping equipment for powder metallurgy includes a stamping machine body 1 and a hydraulic cylinder 4 fixedly installed inside the upper part of the stamping machine body 1. A hydraulic seat 11 is fixedly installed at the telescopic end of the hydraulic cylinder 4. A moving groove 12 is opened on the upper side of the horizontal part of the stamping machine body 1. A mother mold 13 is slidably connected inside the moving groove 12. A control panel 14 is fixedly installed on the front of the horizontal part of the stamping machine body 1. A cleaning component 2 is provided on the upper side of the horizontal part of the stamping machine body 1 and the lower side of the hydraulic seat 11.

[0034] The cleaning component 2 includes movable columns 21 fixedly connected to the lower left and right sides of the hydraulic base 11. Fixed columns 22 are fixedly connected to the outer side of the movable columns 21. Rotary cylinders 23 are rotatably connected to the upper left and right sides of the horizontal part of the press body 1. The two rotary cylinders 23 are respectively sleeved on the outer side of the two movable columns 21. The inside of the rotary cylinder 23 is provided with guide grooves 24. The fixed columns 22 are slidably connected in the guide grooves 24. A gear ring 25 is fixedly connected to the outer side of the rotary cylinder 23. A gear 26 is rotatably connected to the upper side of the horizontal part of the press body 1. The gear ring 25 meshes with the left and right sides of the gear 26. A funnel groove 261 is fixedly opened through the middle of the gear 26. A cleaning brush 27 is provided on the inner side of the funnel groove 261. The cleaning brush 27 is rotatably attached to the upper side of the mother mold 13.

[0035] By adopting the above technical solution, after the powder material is first poured into the master mold 13, the hydraulic cylinder 4 is activated to drive the hydraulic seat 11 to move the two moving columns 21 downward. During this process, the two fixed columns 22 on the outside of the two moving columns 21 will enter the guide groove 24 inside the rotating drum 23. As the fixed columns 22 enter the guide groove 24, because the rotating drum 23 is restricted to both sides of the press body 1 and can rotate freely, the fixed columns 22 will cause the rotating drum 23 and its outer toothed ring 25 to rotate after entering the spiral guide groove 24. After the fixed columns 22 come out from the other end of the guide groove 24, the rotating drum 23 and the toothed ring 25 stop rotating. During the rotation of the toothed ring 25... The gear 26, which meshes with the gear ring 25, will rotate on the upper side of the horizontal part of the press body 1. At the same time, the cleaning brush 27 inside the gear 26 will also rotate with the gear 26 and clean the powder material remaining at the wide opening of the mother mold 13, so that it enters the mother mold 13. As the hydraulic seat 11 moves downward, the gear 26 will drive the cleaning brush 27 to rotate above the mother mold 13, so that the cleaning brush 27 can remove the powder material remaining at the wide opening of the mother mold 13. This avoids some powder material adhering to the inlet due to static electricity, so as to prevent the powder material from not being able to completely enter the mother mold 13 during the stamping process and affecting the stamping quality of the powder.

[0036] like Figure 1 As shown, there are two fixed columns 22 on the outside of the movable column 21, the two guide grooves 24 are both in the shape of intersecting spirals, there are multiple cleaning brushes 27, and the upper side of the gear 26 and the inner side of the funnel groove 261 are provided with a stretching component 28. The stretching component 28 includes a slide groove 281 in a ring array inside the funnel groove 261.

[0037] Multiple cleaning brushes 27 are slidably connected within multiple grooves 281. A pull rope 282 is fixedly connected to the side of the cleaning brush 27 away from the mother mold 13. A fixed base 283 is fixedly connected to the upper side of the gear 26 in a circular array. The pull rope 282 passes through the fixed base 283 and extends to the upper side of the fixed base 283. A connecting block 284 is fixedly connected to the other end of the pull rope 282. The connecting block 284 is made of magnetic metal. Guide rods 285 are fixedly connected to the front and rear sides of the lower end of the connecting block 284. Two corresponding guide rods 285 pass through the same fixed base 283. The hydraulic base 11 slides through the left and right ends. There is a first limiting rod 286, and the bottom ends of the two first limiting rods 286 are fixedly connected to a magnetic ring 287. After the magnetic ring 287 moves downward, it magnetically attracts multiple connecting blocks 284. After the magnetic ring 287 attracts the connecting blocks 284, it can pull the cleaning brush 27 upward by the pull rope 282. The interior of multiple fixing seats 283 is provided with a movable groove 288 that slopes upward. A locking block 289 is slidably connected in the movable groove 288. The locking block 289 is made of magnetic metal. After the magnetic ring 287 moves downward, it magnetically attracts the locking block 289. After the locking block 289 moves upward, it locks the pull rope 282.

[0038] By adopting the above technical solution, during the downward movement of the hydraulic seat 11, the magnetic ring 287, fixed by the first limiting rod 286, will move downward along with the hydraulic seat 11. Since the magnetic ring 287 is below the hydraulic seat 11, as the hydraulic seat 11 continues to move downward, after the magnetic ring 287 approaches the multiple connecting blocks 284, the magnetic ring 287 will simultaneously attract the multiple connecting blocks 284, causing the connecting blocks 284 to pull the pull rope 282. At the same time, the pull rope 282 will pull the cleaning brush 27, causing the cleaning brush 27 to be pulled into the slide groove 281. At this time, the cleaning brush 27 will disengage from the wide opening of the female mold 13. Then, the magnetic ring 287 will continue to move downward and be inside the fixed seat 283. The locking block 289 inside the movable groove 288 will also be attracted and moved toward the pull rope 282 inside the fixed seat 283, and squeeze the pull rope 282, so that the cleaning brush 27 cannot slide obliquely downward in the slide groove 281 by its own weight. Finally, the hydraulic seat 11 enters the mother mold 13 to press the powder material. Since the hydraulic seat 11 will pull the cleaning brush 27 away from the wide opening of the mother mold 13 before entering the mother mold 13, the hydraulic seat 11 cannot squeeze the cleaning brush 27 during the pressing of the material. This not only sends the residual material into the mother mold 13 before pressing the powder material, but also avoids the cleaning brush 27 affecting the pressing efficiency of the hydraulic seat 11 on the powder material.

[0039] like Figure 1 As shown, the funnel groove 261 is provided with a cleaning component 29. The cleaning component 29 includes cleaning strips 291 that are inserted into multiple grooves 281 and arranged in a longitudinal array. The cleaning strips 291 slide in contact with the cleaning brush 27.

[0040] By adopting the above technical solution, during the process of pulling the cleaning brush 27 by the pull rope 282, the cleaning strips 291 arranged in a longitudinal array inside the slide groove 281 are inserted into the bristles of the cleaning brush 27, and the frame of the cleaning brush 27 rests on top of the cleaning brush 27. As the cleaning brush 27 is pulled, the bristles of the cleaning brush 27 will rub against the surface of the cleaning strips 291. The cleaning strips 291 will straighten the bristles of the cleaning brush 27 and remove the powder material attached to the surface of the bristles of the cleaning brush 27. Since the cleaning strips 291 remove the powder material attached to the surface of the bristles of the cleaning brush 27 during the process of the cleaning brush 27 being pulled up, it prevents the cleaning brush 27 from bringing the powder material into the slide groove 281 and causing the cleaning brush 27 to be worn by the powder material during the up and down movement. On the other hand, it also avoids the waste of powder material, which would affect the stamping efficiency due to insufficient powder material during the stamping process.

[0041] like Figure 1 As shown, the stamping machine body 1 is equipped with impact components 3 inside and on both sides. The impact components 3 include magnetic blocks 31 fixedly connected to the opposite sides of the two moving columns 21.

[0042] The movable groove 12 has through grooves 32 on both the left and right sides. There are multiple through grooves 32 on each side. Multiple through grooves 32 are connected to the same movable groove 12. A fixing block 33 is fixedly connected inside the through groove 32. A first pressure spring 34 is fixedly connected to the side of the fixing block 33 near the mother mold 13. A bumper 36 is fixedly connected to the other end of the first pressure spring 34. The bumper 36 is slidably connected in the through groove 32. A magnetic column 35 is fixedly connected to the side of the bumper 36 near the first pressure spring 34. After the magnetic block 31 moves downward, it magnetically attracts the magnetic column 35. The side of the bumper 36 near the mother mold 13 is pressed and contacts the mother mold 13.

[0043] By adopting the above technical solution, firstly, when the two moving columns 21 drive the magnetic block 31 to move downwards, as the magnetic block 31 becomes level with the through groove 32, the magnetic block 31 will attract the magnetic column 35 inside the through groove 32. During the attraction process, the magnetic column 35 will pull the impact block 36. When the moving columns 21 drive the magnetic block 31 away from the first through groove 32, the magnetic column 35 loses the attraction from the magnetic block 31, and the first pressure spring 34 on the side of the fixed block 33 will push the impact block 36, causing the impact block 36 to collide with the mother mold 13. After the mother mold 13 is impacted, the powder materials inside it will collide with each other and The compression causes the gaps between particles to be compressed, reducing the volume of the powder and increasing its density. After the magnetic block 31 moves downward, it will correspond to the next through slot 32, achieving the above effect again. As the moving column 21 drives the magnetic block 31 to move downward, it will drive the magnetic column 35 to pull the impact block 36, and the first pressure spring 34 will push the impact block 36 to impact the mother mold 13. After the mother mold 13 is impacted, the powder material stored inside will be compacted. When the powder material becomes compacted, it can form a more uniform particle distribution during the stamping process, thereby reducing surface defects and ensuring the stamping quality of the powder material.

[0044] like Figure 1 As shown, the inside of the horizontal part of the press body 1, the inside of the hydraulic base 11, and the lower side are all provided with a material ejection assembly 37. The material ejection assembly 37 includes a second pressure spring 371 fixedly connected to the lower side of the inside of the moving groove 12.

[0045] One end of the second pressure spring 371 is fixedly connected to the lower side of the female mold 13. A support column 372 is fixedly connected to the lower side of the inner side of the moving groove 12. The female mold 13 is sleeved on the outer side of the support column 372. A limit groove 373 is opened on the lower side of the hydraulic seat 11, and there are two limit grooves 373. A second limit rod 374 is slidably connected inside the limit groove 373. The bottom ends of the two second limit rods 374 are fixedly connected to a stamping block 375. After the stamping block 375 moves downward, it presses against the upper side of the support column 372. A pressure sensor 376 is fixedly installed inside the hydraulic seat 11. After the lower side of the stamping block 375 contacts the support column 372, the stamping block 375 and the pressure sensor 376 are pressed into contact. The lower sides of both ends of the hydraulic seat 11 are fixedly connected to the first electric push rod 377. The bottom end of the first electric push rod 377 is fixedly connected to the extrusion plate 378. After the extrusion plate 378 moves downward, it is pressed into contact with the upper side of the mother mold 13. The interior of the horizontal part of the stamping machine body 1 is fixedly installed with the second electric push rod 379. One end of the front of the second electric push rod 379 is fixedly connected to the push plate 3791. After the push plate 3791 is pushed by the second electric push rod 379, it enters the moving groove 12.

[0046] By adopting the above technical solution, firstly, the hydraulic seat 11 drives the stamping block 375 into the mother mold 13 and into contact with the powder material above the support column 372. At this time, the powder material is wrapped by the mother mold 13, causing the second limiting rod 374 above the stamping block 375 to retract into the limiting groove 373 below the hydraulic seat 11. At the same time as the stamping block 375 contacts the hydraulic seat 11, it also contacts the pressure sensor 376 inside the stamping rod. The pressure sensor 376 processes the information and transmits it to the control panel 14, which then controls the first electric push rod 377 to push the extrusion plate 378 downward, so that the powder material is pressed by the hydraulic seat 11. While the pressing block 375 is pressing, the master mold 13 is also pushed upward by the extrusion plate 378. When the powder material is pressed, the downward-pushed master mold 13 will make the pressed material above the support column 372 and fully exposed in the moving groove 12. At the same time, the second electric push rod 379 will drive the push plate to push in the direction of the material, so that the material is pushed out of the moving groove 12. Since the master mold 13 will also be squeezed while the powder material is being pressed, the pressed material is pushed out relative to the master mold 13, so as to facilitate the subsequent unloading of the material, effectively improving the subsequent pressing efficiency of the powder material.

[0047] like Figure 1 As shown, a collection assembly 38 is provided inside and on the upper side of the horizontal part of the press body 1. The collection assembly 38 includes a collection cavity 381 opened on the upper side of the horizontal part of the press body 1.

[0048] The lower interior of the collecting cavity 381 has through holes 382 arranged in a rectangular array, and the lower interior of the collecting cavity 381 is inclined from back to front.

[0049] By adopting the above technical solution, after the material is pushed out of the moving groove 12 by the second electric push rod 379, the material will slide into the collection chamber 381 and slide towards the control panel 14 along the slope of the collection chamber 381. During the sliding process, the powder material remaining on the surface of the material will be discharged through the through hole 382. Since the residual powder material will be discharged through the through hole 382 during the sliding process of the material in the collection chamber 381, the residual powder material will be avoided from accumulating in the collection chamber 381 and causing wear to the material during the sliding process, so as to ensure the cleanliness of the material surface.

[0050] Working principle: First, after the powder material is poured into the mother mold 13, the press body 1 is started, driving the hydraulic seat 11 to move the two moving columns 21 downwards. As the fixed column 22 enters the spiral guide groove 24 inside the rotating drum 23, the rotating drum 23 and its outer toothed ring 25 begin to rotate. After the fixed column 22 comes out from the other end of the guide groove 24, the rotating drum 23 and the toothed ring 25 stop rotating. During the rotation of the toothed ring 25, the gear 26 meshing with the toothed ring 25 will rotate on the upper side of the horizontal part of the press body 1, and drive the cleaning brush 27 inside the gear 26 to clean the powder material remaining at the wide opening of the mother mold 13, so that it enters the mother mold 13. At the same time, the magnetic ring 287 fixed by the first limit rod 286 will move downwards with the hydraulic seat 11. Since the magnetic ring 287 is below the hydraulic seat 11, after the magnetic ring 287 approaches the multiple connecting blocks 284... The magnetic ring 287 will simultaneously attract multiple connecting blocks 284, causing the connecting blocks 284 to pull the pull rope 282 and the cleaning brush 27. At this time, the cleaning brush 27 will be pulled into the slide groove 281. Because the cleaning strips 291 arranged in a longitudinal array inside the slide groove 281 are inserted into the bristles of the cleaning brush 27, and the frame of the cleaning brush 27 rests on top of the cleaning brush 27, the bristles of the cleaning brush 27 will rub against the surface of the cleaning strips 291. The cleaning strips 291 will straighten the bristles of the cleaning brush 27 and remove the powder material attached to the surface of the bristles of the cleaning brush 27. Then the magnetic ring 287 continues to move downward, and the locking block 289 in the movable groove 288 inside the fixed seat 283 will also be attracted and moved towards the pull rope 282 inside the fixed seat 283, and squeeze the pull rope 282, so that the cleaning brush 27 cannot slide diagonally downward in the slide groove 281 by its own weight.

[0051] When the two moving columns 21 drive the magnetic block 31 downwards to the position of the through slot 32, the magnetic block 31 will attract the magnetic column 35 inside the through slot 32. During the attraction process, the magnetic column 35 will pull the impact block 36. When the moving column 21 drives the magnetic block 31 away from the first through slot 32, the magnetic column 35 loses the attraction from the magnetic block 31, and the first pressure spring 34 on the side of the fixed block 33 will push the impact block 36, causing the impact block 36 to hit the mother mold 13. After the mother mold 13 is impacted, the powder material inside will collide and squeeze with each other, resulting in the compression of the gaps between particles, the reduction of the powder volume and the increase of density. After the magnetic block 31 moves downwards, it will correspond to the next through slot 32, achieving the above effect again. After the hydraulic seat 11 drives the stamping block 375 into the mother mold 13 and contacts the powder material above the support column 372, the powder material is then wrapped by the mother mold 13, causing the second limit above the stamping block 375 to be stopped. Rod 374 retracts into the limiting groove 373 below the hydraulic seat 11. When the stamping block 375 contacts the hydraulic seat 11, it also contacts the pressure sensor 376 inside the stamping rod. The pressure sensor 376 processes the information and transmits it to the control panel 14. Then, it controls the first electric push rod 377 to push the extrusion plate 378 downward, so that the powder material is stamped by the hydraulic seat 11 in conjunction with the stamping block 375. At the same time, the master mold 13 is also pushed upward by the extrusion plate 378. When the powder material is stamped, the downward-pushed master mold 13 will make the stamped material above the support column 372 and completely exposed in the moving groove 12. At the same time, the second electric push rod 379 will drive the push plate to push towards the material, so that the material is pushed out of the moving groove 12. Finally, the material will slide into the collection chamber 381 and slide towards the control panel 14 along the slope of the collection chamber 381. During the sliding process, the powder material remaining on the surface of the material will be discharged through the through hole 382.

[0052] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A stamping device for powder metallurgy, comprising a stamping machine body (1) and a hydraulic cylinder (4) fixedly installed inside the upper part of the stamping machine body (1), wherein a hydraulic seat (11) is fixedly installed at the telescopic end of the hydraulic cylinder (4), a moving groove (12) is provided on the upper side of the horizontal part of the stamping machine body (1), a female mold (13) is slidably connected inside the moving groove (12), and a control panel (14) is fixedly installed on the front of the horizontal part of the stamping machine body (1), characterized in that: The upper side of the horizontal part of the press body (1) and the lower side of the hydraulic base (11) are provided with a cleaning component (2). The cleaning component (2) includes a movable column (21) fixedly connected to the lower left and right sides of the hydraulic base (11). A fixed column (22) is fixedly connected to the outer side of the movable column (21). Rotary cylinders (23) are rotatably connected to the upper left and right sides of the horizontal part of the press body (1). The two rotary cylinders (23) are respectively sleeved on the outer side of the two movable columns (21). A guide groove (24) is opened inside the rotary cylinder (23). The fixed column (22) is slidably connected in the guide groove (24). A toothed ring (25) is fixedly connected to the outer side of the rotary cylinder (23). A gear (26) is rotatably connected to the upper side of the horizontal part of the press body (1). The toothed ring (25) meshes with the left and right sides of the gear (26). A funnel groove (261) is fixedly opened through the middle of the gear (26). A cleaning brush (27) is provided on the inner side of the funnel groove (261). The cleaning brush (27) is rotatably attached to the upper side of the mother mold (13). The inside of the horizontal part of the press body (1) and the inside and lower side of the hydraulic base (11) are provided with a material ejection assembly (37), and the material ejection assembly (37) includes a second pressure spring (371) fixedly connected to the lower side of the inside of the moving groove (12). One end of the second pressure spring (371) is fixedly connected to the lower side of the mother mold (13). A support column (372) is fixedly connected to the lower side of the inner side of the moving groove (12). The mother mold (13) is sleeved on the outside of the support column (372). A limit groove (373) is opened on the lower side of the hydraulic seat (11), and there are two limit grooves (373). A second limit rod (374) is slidably connected inside the limit groove (373). The bottom ends of the two second limit rods (374) are fixedly connected to a stamping block (375). After the stamping block (375) moves downward, it presses against the upper side of the support column (372). A pressure sensor (376) is fixedly installed inside the hydraulic seat (11). After the lower side of the stamping block (375) contacts the support column (372), the stamping block (375) and the pressure sensor (376) are pressed into contact. The lower sides of the left and right ends of the hydraulic seat (11) are fixedly connected to the first electric push rod (377). The bottom end of the first electric push rod (377) is fixedly connected to the extrusion plate (378). After the extrusion plate (378) moves downward, it is pressed into contact with the upper side of the mother mold (13). The interior of the horizontal part of the stamping machine body (1) is fixedly installed with the second electric push rod (379). One end of the front of the second electric push rod (379) is fixedly connected to the push plate (3791). After the push plate (3791) is pushed by the second electric push rod (379), it enters the moving groove (12).

2. The stamping equipment for powder metallurgy according to claim 1, characterized in that: The number of fixed columns (22) on the outside of the movable column (21) is two, the two guide grooves (24) are both in the shape of intersecting spirals, the number of cleaning brushes (27) is multiple, the upper side of the gear (26) and the inner side of the funnel groove (261) are provided with a stretching component (28), the stretching component (28) includes a sliding groove (281) arranged in a ring array inside the funnel groove (261).

3. The stamping equipment for powder metallurgy according to claim 2, characterized in that: Multiple cleaning brushes (27) are slidably connected in multiple grooves (281). A pull rope (282) is fixedly connected to the side of the cleaning brush (27) away from the mother mold (13). A fixed seat (283) is fixedly connected to the upper side of the gear (26) in a circular array. The pull rope (282) passes through the fixed seat (283) and extends to the upper side of the fixed seat (283). A connecting block (284) is fixedly connected to the other end of the pull rope (282). The connecting block (284) is made of magnetic metal. Guide rods (285) are fixedly connected to the front and rear sides of the lower end of the connecting block (284). Two corresponding guide rods (285) pass through the same fixed seat (283). The hydraulic seat (11) is slidably connected to both the left and right ends. There is a first limiting rod (286), and the bottom ends of the two first limiting rods (286) are fixedly connected to a magnetic ring (287). After the magnetic ring (287) moves downward, it magnetically attracts multiple connecting blocks (284). After the magnetic ring (287) attracts the connecting blocks (284), it can pull the cleaning brush (27) upward by pulling the rope (282). The interior of each of the multiple fixed seats (283) is provided with an upward inclined movable groove (288). A locking block (289) is slidably connected in the movable groove (288). The locking block (289) is made of magnetic metal. After the magnetic ring (287) moves downward, it magnetically attracts the locking block (289). After the locking block (289) moves upward, it locks the pull rope (282).

4. A stamping device for powder metallurgy according to claim 3, characterized in that: The funnel groove (261) is provided with a cleaning component (29) inside. The cleaning component (29) includes cleaning strips (291) arranged in a longitudinal array inserted inside a plurality of grooves (281). The cleaning strips (291) slide in contact with the cleaning brush (27).

5. A stamping device for powder metallurgy according to claim 1, characterized in that: The stamping machine body (1) is equipped with impact components (3) inside and on both sides. The impact components (3) include magnetic blocks (31) fixedly connected to the opposite sides of two moving columns (21).

6. A stamping device for powder metallurgy according to claim 5, characterized in that: The moving groove (12) has through grooves (32) on both the left and right sides. There are multiple through grooves (32) on each side. Multiple through grooves (32) are connected to the same moving groove (12). A fixing block (33) is fixedly connected inside the through groove (32). A first pressure spring (34) is fixedly connected to the side of the fixing block (33) near the mother mold (13). A bumper (36) is fixedly connected to the other end of the first pressure spring (34). The bumper (36) is slidably connected in the through groove (32). A magnetic column (35) is fixedly connected to the side of the bumper (36) near the first pressure spring (34). After the magnetic block (31) moves downward, it magnetically attracts the magnetic column (35). The side of the bumper (36) near the mother mold (13) is pressed and contacted with the mother mold (13).

7. A stamping device for powder metallurgy according to claim 1, characterized in that: The inside and the top of the horizontal part of the press body (1) are provided with a collection component (38), and the collection component (38) includes a collection cavity (381) opened on the top of the horizontal part of the press body (1).

8. A stamping device for powder metallurgy according to claim 7, characterized in that: The lower interior of the collection chamber (381) has through holes (382) arranged in a rectangular array, and the lower interior of the collection chamber (381) is inclined from back to front.

Images