Metal powder compression molding device

Abstract

The invention belongs to the technical field of powder metallurgy, and particularly relates to a metal powder compression molding device which comprises a recycling box, a recycling cross beam, a hollow strip seat, an upper partition plate, a lower partition plate, a transverse pipe and air holes. Air in the recycling box is pumped out through an air pump, and air at an opening in the bottom of the recycling cross beam and residual metal powder are sucked into the recycling box to be stored through a pipeline and a hollow strip seat; air flow enters the transverse pipe through the air pump, and then the air flow is sprayed out downwards through air holes in the bottom of the transverse pipe; when passing through the forming cavity in the lower die of the forming die, air flow impacts the interior of the forming cavity, residual metal powder entering the interior of the forming cavity is carried out, and the residual metal powder is sucked in by the hollow strip base; and therefore, residual metal powder on the top surface of the lower die of the forming die is recycled, the weight of the residual metal powder entering a forming cavity of the forming die is reduced, the weight consistency of workpieces pressed every time is improved, and the product quality of the workpieces is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of powder metallurgy, in particular to a metal powder pressing and forming device. Background Art

[0002] Powder metallurgy is a metal product formed by pressing and sintering metal powder as raw material. Through the method of powder metallurgy, it is easy to quickly press out large quantities of metal preparations, effectively reducing production time and saving production costs. Powder metallurgy technology is one of the commonly used and popular processes in the mechanical field.

[0003] A Chinese patent application with publication number CN116765390A discloses a powder metallurgy parts pressing and forming machine, which relates to the field of powder metallurgy technology. In view of the existing problem that only one-side pressing can be performed, the following solution is proposed, which includes a base and a lower mold located on the upper side of the base, a plurality of columns are fixedly connected to the upper side of the base, and the upper ends of the plurality of columns are commonly fixedly connected to a top plate. A stamping mechanism cooperating with the lower mold is arranged on the lower side of the top plate, a feeding mechanism for moving powder to the inner side of the lower mold is arranged on the upper side of the base, and an upper pressing mechanism for pressing the powder inside the lower mold is arranged on the lower side of the base. The upper pressing mechanism and the stamping mechanism cooperate with each other to press the powder from the upper and lower sides at the same time, and a top feeding mechanism cooperating with the upper pressing mechanism is arranged on the inner side of the lower mold. The present invention can make the metallurgical parts be pressed from the upper and lower sides at the same time, improve the strength of pressing, and complete the entire pressing and unloading in one piece, thereby reducing the time of pressing and improving efficiency.

[0004] When metal powder is pressed and molded in a molding die, metal powder will remain on the mold and fall into the molding cavity of the mold, causing the weight of the metal powder in the molding cavity to be different each time, resulting in differences in the weight of each metal product, which in turn affects the product quality of the metal products.

[0005] To this end, the present invention provides a metal powder pressing and forming device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a metal powder pressing and forming device described in the present invention comprises a hydraulic press; a forming die is arranged on the working table of the hydraulic press; a push assembly is arranged on one side of the working table of the hydraulic press; an extension assembly is arranged on the top of the end of the push assembly away from the hydraulic press; the extension assembly can extend into the middle of the working table of the hydraulic press; a recovery assembly is arranged at the bottom of the end of the extension assembly close to the hydraulic press, and the recovery assembly is used to recover metal powder; the recovery assembly comprises a recovery box; the recovery box is arranged at the bottom of the hydraulic press; an air pump is arranged on one side of the recovery box; a recovery beam is arranged at the bottom of the end of the extension assembly close to the hydraulic press; the bottom surface of the recovery beam is close to the An opening is provided on one side of the forming mold; the bottom surface of the recovery beam can be in sliding contact with the top surface of the lower mold of the forming mold; a hollow bar seat is fixedly connected to the inner top surface of the recovery beam; a plurality of straight grooves are evenly provided on the bottom of the hollow bar seat; the top of the hollow bar seat is connected to the recovery box through a hose; the vacuum pump on the side of the recovery box extracts the internal air of the recovery box, so that negative pressure is generated inside the recovery box, and the air at the opening at the bottom of the recovery beam and the residual metal powder are sucked into the internal storage of the recovery box through the pipeline and the hollow bar seat; thereby, the metal powder remaining on the top surface of the lower mold of the forming mold is recovered, reducing the weight of the residual metal powder entering the forming cavity of the forming mold, thereby improving the weight consistency of the workpiece pressed each time, and improving the product quality of the workpiece.

[0008] Preferably, an upper partition is fixedly connected to the side of the inner top surface of the recovery beam away from the forming mold; a lower partition is fixedly connected to the middle part of the inner bottom side of the recovery beam; the bottom side height of the upper partition is lower than the top side height of the lower partition; a horizontal tube is arranged between the inner side of the recovery beam away from the forming mold and the upper partition; a plurality of air holes are evenly arranged on the bottom surface of the horizontal tube; the horizontal tube is connected to the air pump through an air pipe; thereby further improving the cleanliness of the inside of the forming cavity on the lower mold of the forming mold, and further improving the weight consistency of the workpiece.

[0009] Preferably, the push assembly includes a pair of fixed seats; the two fixed seats are fixedly connected to both sides of the hydraulic press; a sliding beam is slidably installed inside the fixed seats; a spur rack is fixedly connected to the side of the sliding beam; a gear is rotatably installed inside the fixed seat; the gear is meshed with the spur rack; a motor is fixedly connected to both sides of the hydraulic press; the rotating shaft of the motor is fixedly connected to the rotating shaft of the gear; a fixed beam is bolted to one end of the two sliding beams away from the hydraulic press; power is provided for the movement of the recovery assembly.

[0010] Preferably, the extension component includes a transverse plate; the transverse plate is arranged on the top surface of the fixed beam; a vertical plate is fixedly connected to the middle of the top surface of the transverse plate; an extension beam is arranged on the side of the vertical plate close to the hydraulic press; thereby preventing the hydraulic press from blocking the recovery component.

[0011] Preferably, a plurality of pairs of card slots are evenly provided on both sides of the fixed beam; a plurality of pairs of U-shaped card plates are evenly fixed to the bottom surfaces of both sides of the cross plate; the U-shaped card plates are slidably matched with the card slots; a locking bolt is slidably installed inside each pair of the U-shaped card plates, and the locking bolt passes through the fixed beam; thereby improving the connection strength of the extension component and the translation component, and then improving the stability of the recovery component during translation.

[0012] Preferably, a sliding groove is provided in the middle of the vertical plate; fixing grooves are provided on both sides of the sliding groove; a T-shaped mounting seat is provided on the side of the vertical plate close to the hydraulic press; a convex column is fixedly connected to the middle of the T-shaped mounting seat; the convex column of the T-shaped mounting seat is slidably matched with the sliding groove; a clamp is slidably mounted on the outer ring of the convex column of the T-shaped mounting seat; the clamp is arranged on the side of the vertical plate away from the hydraulic press; a plurality of long bolts are passed through the fixing groove to lock the clamp and the two ends of the T-shaped mounting seat; the T-shaped mounting seat is fixedly connected to the extension beam; thereby the height of the extension beam is adjusted to facilitate application to different molding molds.

[0013] Preferably, a slide is rotatably mounted on the bottom of one side of the vertical plate away from the hydraulic press; a nut is rotatably mounted on the top of the slide; a screw is rotatably mounted on one end of the convex column of the T-shaped mounting seat away from the hydraulic press; the screw is slidably arranged inside the slide; the screw cooperates with the nut thread on the top of the slide, thereby improving the stability of the extension beam.

[0014] Preferably, a plurality of through slots are provided at one end of the extension beam close to the hydraulic press; an adjusting cylinder is slidably installed inside the plurality of through slots; vertical slots are provided on both sides of the adjusting cylinder; a pair of sliders are slidably installed inside the adjusting cylinder; a plurality of springs are fixed between two sliders; a bolt is fixed on a side of the slider away from the spring, and the bolt is connected to the side of the through slot; the bottom end of the middle adjusting cylinder is fixed to the top surface of the recovery beam; it is convenient for the staff to adjust the height of the recovery component.

[0015] Preferably, a strip plate is fixedly connected to the bottom end of the adjusting cylinder near the hydraulic press; a plurality of vertical rods are fixedly connected to the bottom surface of the strip plate; the bottom ends of the vertical rods can be in sliding contact with the top surface of the lower mold of the forming mold; thereby completing the unloading of the workpiece and the separation from the metal powder.

[0016] Preferably, a bracket is fixedly connected to the bottom end of the adjusting cylinder away from the hydraulic press; a plurality of conical barrels are fixedly connected to the bottom surface of the bracket; the plurality of conical barrels correspond to the forming cavities of the forming mold; a feeding slide is provided on one side of the top of the conical barrel; a blocking slide is slidably installed on one side of the bottom of the conical barrel; the blocking slide can seal the bottom of the conical barrel; an electric push rod is fixedly connected to the bottom of the conical barrel; the piston rod of the electric push rod is fixedly connected to the blocking slide; and the feeding work of metal powder is completed.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. A metal powder pressing and forming device described in the present invention comprises a recovery box, a recovery beam, a hollow bar seat, an upper partition, a lower partition, a transverse tube and air holes; an air pump on the side of the recovery box extracts the internal air of the recovery box, so that a negative pressure is generated inside the recovery box, and the air at the opening at the bottom of the recovery beam and the residual metal powder are sucked into the internal storage of the recovery box through the pipeline and the hollow bar seat; the air pump flows air into the interior of the transverse tube, and the air flow is then ejected downward from the air holes at the bottom of the transverse tube, and the air flow is blocked by the upper partition and the lower partition, and flows along the channel formed by the upper partition and the lower partition. The airflow moves so that after passing through the top surface of the lower die of the forming mold, it turns to the hollow strip seat; when the recovery beam passes through the forming cavity on the lower die of the forming mold, the airflow will impact the interior of the forming cavity, and carry out the residual metal powder entering the interior of the forming cavity, and carry it to the hollow strip seat, so that the residual metal powder is sucked into the hollow strip seat; thereby, the residual metal powder on the top surface of the lower die of the forming mold is recovered, and the weight of the residual metal powder entering the forming cavity of the forming mold is reduced, thereby improving the weight consistency of the workpiece pressed each time, and improving the product quality of the workpiece.

[0019] 2. The metal powder pressing and forming device described in the present invention includes a strip plate and a vertical rod. When the push assembly drives the extension beam to be inserted into the workbench of the hydraulic press, it drives the strip plate and the vertical rod to slide over the top surface of the lower mold of the forming mold. The vertical rod pushes out the workpiece after demolding. At the same time, the dispersed vertical rod can avoid pushing out the residual metal powder, reducing the disturbance to the residual metal powder. Thus, the unloading of the workpiece and the separation from the metal powder are completed, which is convenient for recovering the metal powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 is a stereogram of the present invention;

[0022] Figure 2 It is a stereoscopic diagram of the push assembly, the extension assembly and the recovery assembly in the present invention;

[0023] Figure 3is a three-dimensional diagram of the recycling beam in the present invention;

[0024] Figure 4 is a cross-sectional view of a recycling beam in the present invention;

[0025] Figure 5 is a stereogram of the horizontal push assembly of the present invention;

[0026] Figure 6 It is an exploded view of the fixing seat in the present invention;

[0027] Figure 7 is a perspective view of an extension assembly in the present invention;

[0028] Figure 8 is an exploded view of the neutral plate of the present invention;

[0029] Fig. 9 is an exploded view of the regulating cylinder in the present invention;

[0030] Fig.10 is a three-dimensional diagram of the strip board in the present invention;

[0031] Fig.11 is a three-dimensional diagram of a conical barrel in the present invention;

[0032] Fig.12 is a cross-sectional view of the conical barrel of the present invention;

[0033] In the figure: 1. hydraulic press; 2. forming mold; 3. recycling box; 4. recycling beam; 5. opening; 6. hollow strip seat; 7. upper partition; 8. lower partition; 9. horizontal tube; 10. air hole; 11. fixed seat; 12. sliding beam; 13. straight rack; 14. gear; 15. motor; 16. fixed beam; 17. horizontal plate; 18. vertical plate; 19. extension beam; 20. slot; 21. U-shaped card plate; 22. slide slot; 23. fixed slot; 24. T-shaped mounting seat; 25. splint; 26. slide cylinder; 27. screw; 28. through slot; 29. ​​adjusting cylinder; 30. vertical slot; 31. slider; 32. spring; 33. strip plate; 34. vertical pole; 35. bracket; 36. conical barrel; 37. feeding slideway; 38. blocking slide plate; 39. electric push rod. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0035] like Figures 1 to 4As shown, a metal powder pressing and forming device described in an embodiment of the present invention comprises a hydraulic press 1; a forming die 2 is arranged on the workbench of the hydraulic press 1; a horizontal push assembly is arranged on one side of the workbench of the hydraulic press 1; an extension assembly is arranged on the top of one end of the horizontal push assembly away from the hydraulic press 1; the extension assembly can extend into the middle of the workbench of the hydraulic press 1; a recovery assembly is arranged at the bottom of one end of the extension assembly close to the hydraulic press 1, and the recovery assembly is used to recover metal powder; the recovery assembly comprises a recovery box 3; the recovery box 3 is arranged at the bottom of the hydraulic press 1; an air pump is arranged on one side of the recovery box 3; a recovery beam 4 is arranged at the bottom of one end of the extension assembly close to the hydraulic press 1; an opening 5 is provided on the bottom surface of the recovery beam 4 close to the side of the forming die 2; the bottom surface of the recovery beam 4 can be in sliding contact with the top surface of the lower die of the forming die 2; a hollow strip seat 6 is fixedly connected to the inner top surface of the recovery beam 4; a plurality of straight grooves are evenly arranged on the bottom of the hollow strip seat 6; The top is connected to the recovery box 3 through a hose; when working, the hydraulic press 1 drives the forming mold 2 to close the mold, so that the metal powder inside the molding cavity of the forming mold 2 is pressed into a workpiece, and the hydraulic press 1 drives the forming mold 2 to open the mold, and at the same time, the workpiece is demoulded and unloaded. At this time, metal powder will remain on the top surface of the lower mold of the forming mold 2; at this time, the push assembly drives the extension assembly and the recovery assembly to move toward the top surface of the lower mold of the forming mold 2, so that the bottom surface of the recovery beam 4 contacts the top surface of the lower mold of the forming mold 2, and slides against the top surface of the lower mold of the forming mold 2, and at the same time, the vacuum pump on the side of the recovery box 3 extracts the internal air of the recovery box 3, so that negative pressure is generated inside the recovery box 3, and the air and residual metal powder at the opening 5 at the bottom of the recovery beam 4 are sucked into the internal storage of the recovery box 3 through the pipeline and the hollow bar seat 6; thereby, the metal powder remaining on the top surface of the lower mold of the forming mold 2 is recovered, and the weight of the residual metal powder entering the molding cavity of the forming mold 2 is reduced, thereby improving the weight consistency of the workpiece pressed each time, and improving the product quality of the workpiece.

[0036] like Figure 3 to Figure 4 As shown, an upper partition 7 is fixedly connected to the side of the inner top surface of the recovery beam 4 away from the forming mold 2; a lower partition 8 is fixedly connected to the middle of the inner bottom side of the recovery beam 4; the bottom side height of the upper partition 7 is lower than the top side height of the lower partition 8; a transverse tube 9 is arranged between the inner side of the recovery beam 4 away from the forming mold 2 and the upper partition 7; a plurality of air holes 10 are evenly opened on the bottom surface of the transverse tube 9; the transverse tube 9 is connected to the air pump through an air pipe;

[0037] During operation, the air and residual metal powder at the opening 5 at the bottom of the recovery beam 4 are sucked into the internal storage of the recovery box 3 through the pipeline and the hollow bar seat 6, and the air pump flows the air into the interior of the cross tube 9, and the air flow is then ejected downward from the air holes 10 at the bottom of the cross tube 9. The air flow is blocked by the upper partition 7 and the lower partition 8, and flows along the channel formed by the upper partition 7 and the lower partition 8, so that the air flow passes through the top surface of the lower mold of the forming mold 2 and then turns to the hollow bar seat 6; when the recovery beam 4 passes through the forming cavity on the lower mold of the forming mold 2, the air flow will impact the inside of the forming cavity, carry out the residual metal powder entering the inside of the forming cavity, and carry it to the hollow bar seat 6, so that the residual metal powder is sucked into the hollow bar seat 6; thereby further improving the cleanliness of the inside of the forming cavity on the lower mold of the forming mold 2, and then further improving the weight consistency of the workpiece.

[0038] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, the push assembly includes a pair of fixed seats 11; the two fixed seats 11 are fixedly connected to the two sides of the hydraulic press 1; a slide beam 12 is slidably installed inside the fixed seat 11; a spur rack 13 is fixedly connected to the side of the slide beam 12; a gear 14 is rotatably installed inside the fixed seat 11; the gear 14 is meshed with the spur rack 13; a motor 15 is fixedly connected to both sides of the hydraulic press 1; the rotating shaft of the motor 15 is fixedly connected to the rotating shaft of the gear 14; a fixed beam 16 is bolted to one end of the two slide beams 12 away from the hydraulic press 1;

[0039] During operation, when the metal powder remaining on the top surface of the lower mold of the forming mold 2 is recovered and cleaned, the motor 15 drives the gear 14 to rotate inside the fixed seat 11, drives the spur rack 13 and the slide beam 12 to slide along the fixed seat 11, and drives the extension component and the recovery component to slide toward the hydraulic press 1, thereby providing power for the movement of the recovery component.

[0040] like Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7 As shown, the extension component includes a transverse plate 17; the transverse plate 17 is arranged on the top surface of the fixed beam 16; a vertical plate 18 is fixedly connected to the middle of the top surface of the transverse plate 17; an extension beam 19 is arranged on the side of the vertical plate 18 close to the hydraulic press 1; the recovery beam 4 is suspended and fixed by the transverse plate 17, the vertical plate 18 and the extension beam 19, and the recovery beam 4 is driven by the extension beam 19 to be inserted into the workbench of the hydraulic press 1, thereby avoiding the hydraulic press 1 from blocking the recovery component.

[0041] like Figure 5 and Figure 7As shown, a plurality of pairs of slots 20 are evenly provided on both sides of the fixed beam 16; a plurality of pairs of U-shaped clips 21 are evenly fixed to the bottom surfaces of both sides of the cross plate 17; the U-shaped clips 21 are slidably matched with the slots 20; a locking bolt is slidably installed inside each pair of the U-shaped clips 21, and the locking bolt passes through the fixed beam 16; the U-shaped clips 21 are inserted into the slots 20, and are fixed by passing the locking bolts through the middle of the U-shaped clips 21 and through the fixed beam 16, thereby improving the connection strength of the extension component and the translation component, and then improving the stability of the recovery component during translation.

[0042] like Figure 7 and Figure 8 As shown, a slide groove 22 is provided in the middle of the vertical plate 18; fixing grooves 23 are provided on both sides of the slide groove 22; a T-shaped mounting seat 24 is provided on the side of the vertical plate 18 close to the hydraulic press 1; a convex column is fixedly connected to the middle of the T-shaped mounting seat 24; the convex column of the T-shaped mounting seat 24 is slidably matched with the slide groove 22; a clamping plate 25 is slidably installed on the outer ring of the convex column of the T-shaped mounting seat 24; the clamping plate 25 is arranged on the side of the vertical plate 18 away from the hydraulic press 1; a plurality of long bolts are passed through the fixing groove 23 between the clamping plate 25 and the two ends of the T-shaped mounting seat 24 for locking; the T-shaped mounting seat 24 is fixedly connected to the extension beam 19;

[0043] During operation, the height of the extension beam 19 is adjusted according to the height of the top surface of the lower mold of the forming mold 2, so that the bottom surface of the recovery beam 4 can slide in contact with the top surface of the lower mold of the forming mold 2; the T-shaped mounting seat 24 is controlled to slide along the slide groove 22 to adjust the height of the extension beam 19; when the height adjustment of the extension beam 19 is completed, the T-shaped mounting seat 24 and the clamping plate 25 are locked and fixed by a long bolt passing through the fixing groove 23, and the T-shaped mounting seat 24 and the clamping plate 25 clamp the vertical plate 18; thereby adjusting the height of the extension beam 19 to facilitate adaptation to different forming molds 2.

[0044] like Figure 7 and Figure 8 As shown, a slide 26 is rotatably installed at the bottom of the side of the vertical plate 18 away from the hydraulic press 1; a nut is rotatably installed at the top of the slide 26; a screw 27 is rotatably installed at the end of the convex column of the T-shaped mounting seat 24 away from the hydraulic press 1; the screw 27 is slidably set inside the slide 26; the screw 27 cooperates with the nut thread at the top of the slide 26; the screw 27 cooperates with the nut thread at the top of the slide 26, so that the convex column of the T-shaped mounting seat 24 is connected to the bottom of the vertical plate 18, and the T-shaped mounting seat 24 is tightened; thereby improving the stability of the extension beam 19.

[0045] like Figure 2 , Figure 7As shown in FIG. 9 , the extension beam 19 is provided with a plurality of through slots 28 at one end close to the hydraulic press 1; an adjusting cylinder 29 is slidably installed inside the plurality of through slots 28; vertical slots 30 are provided on both sides of the adjusting cylinder 29; a pair of sliders 31 are slidably installed inside the adjusting cylinder 29; a plurality of springs 32 are fixedly connected between two sliders 31; a bolt is fixedly connected to a side of the slider 31 away from the spring 32, and the bolt is connected to the side of the through slot 28; the bottom end of the middle adjusting cylinder 29 is fixedly connected to the top surface of the recovery beam 4;

[0046] During operation, the adjusting cylinder 29 is pushed to slide along the through slot 28, and the slider 31 is locked and fixed to the side of the through slot 28 by bolts to fix the adjusting cylinder 29; by controlling the height of the adjusting cylinder 29, it is convenient for the staff to adjust the height of the recycling assembly.

[0047] like Figure 1 , Figure 2 and Fig.10 As shown, a strip plate 33 is fixedly connected to the bottom end of the adjusting cylinder 29 close to the hydraulic press 1; a plurality of vertical rods 34 are fixedly connected to the bottom surface of the strip plate 33; the bottom ends of the vertical rods 34 can be in sliding contact with the top surface of the lower mold of the forming mold 2;

[0048] During operation, the push assembly drives the extension beam 19 to be inserted onto the workbench of the hydraulic press 1, and drives the strip plate 33 and the vertical rod 34 to slide over the top surface of the lower mold of the forming mold 2. The vertical rod 34 pushes out the demolded workpiece. At the same time, the dispersed vertical rod 34 can avoid pushing out the residual metal powder, reducing the disturbance to the residual metal powder; thereby completing the unloading of the workpiece and the separation from the metal powder, which is convenient for recovering the metal powder.

[0049] like Figure 1 , Figure 2 , Fig.11 and Fig.12 As shown, a bracket 35 is fixedly connected to the bottom end of one of the adjusting cylinders 29 away from the hydraulic press 1; a plurality of conical barrels 36 are fixedly connected to the bottom surface of the bracket 35; the plurality of conical barrels 36 correspond to the forming cavities of the forming mold 2; a feeding slide 37 is provided on one side of the top of the conical barrel 36; a blocking slide 38 is slidably installed on one side of the bottom of the conical barrel 36; the blocking slide 38 can seal the bottom of the conical barrel 36; an electric push rod 39 is fixedly connected to the bottom of the conical barrel 36; the piston rod of the electric push rod 39 is fixedly connected to the blocking slide 38;

[0050] During operation, the hydraulic press 1 drives the forming mold 2 to close the mold and press the workpiece. At this time, the metal powder is injected into the feeding slide 37 of the conical barrel 36, and the metal powder is stored inside the conical barrel 36. After the forming mold 2 is unloaded and cleaned, the extension beam 19 drives multiple conical barrels 36 to move to the forming cavity of the lower mold of the forming mold 2, and the bottom of the conical barrel 36 is aligned with the forming cavity of the lower mold of the forming mold 2. At this time, the electric push rod 39 drives the blocking slide 38 to slide, and opens the bottom of the conical barrel 36, so that the metal powder inside the conical barrel 36 is injected into the forming cavity of the lower mold of the forming mold 2; thereby completing the feeding of the metal powder.

[0051] Working principle: according to the height of the top surface of the lower mold of the forming mold 2, adjust the height of the extension beam 19 so that the bottom surface of the recovery beam 4 can slide in contact with the top surface of the lower mold of the forming mold 2; control the T-shaped mounting seat 24 to slide along the slide groove 22 to adjust the height of the extension beam 19; when the height adjustment of the extension beam 19 is completed, the T-shaped mounting seat 24 and the clamping plate 25 are locked and fixed by the long bolt penetrating the fixing groove 23, and the T-shaped mounting seat 24 and the clamping plate 25 clamp the vertical plate 18; the screw rod 27 is matched with the nut thread on the top of the slide cylinder 26, so that the convex column of the T-shaped mounting seat 24 is connected to the bottom of the vertical plate 18, and the T-shaped mounting seat 24 is tightened;

[0052] Push the adjusting cylinder 29 to slide along the through slot 28, and lock and fix the slider 31 to the side of the through slot 28 by bolts to fix the adjusting cylinder 29; adjust the height of the recovery beam 4, the strip plate 33 and the conical barrel 36, so that the bottom surface of the recovery beam 4 can contact the top surface of the lower mold of the forming mold 2, the vertical rod 34 on the bottom surface of the strip plate 33 can push out the demolded workpiece, and the bottom of the conical barrel 36 can be close to the molding cavity of the lower mold of the forming mold 2;

[0053] When the hydraulic press 1 drives the forming die 2 to close the mold and press the workpiece, at this time, the metal powder is injected into the feeding slide 37 of the conical barrel 36, and the metal powder is stored inside the conical barrel 36; the metal powder inside the forming cavity of the forming die 2 is pressed into a workpiece, and the hydraulic press 1 drives the forming die 2 to open the mold, so that the workpiece is demolded and ejected;

[0054] The motor 15 drives the gear 14 to rotate inside the fixed seat 11, drives the spur rack 13 and the slide beam 12 to slide along the fixed seat 11, and drives the extension assembly and the recovery assembly to slide toward the hydraulic press 1; when the extension beam 19 is inserted into the working table of the hydraulic press 1, the strip plate 33 and the vertical rod 34 are driven to slide over the top surface of the lower mold of the forming mold 2, and the vertical rod 34 pushes out the demoulded workpiece. At the same time, the dispersed vertical rod 34 can avoid pushing out the residual metal powder, reducing the disturbance of the residual metal powder;

[0055] Afterwards, the extension beam 19 drives the bottom surface of the recovery beam 4 to contact the top surface of the lower mold of the forming mold 2, and slides against the top surface of the lower mold of the forming mold 2. At the same time, the vacuum pump on the side of the recovery box 3 extracts the internal air of the recovery box 3, so that negative pressure is generated inside the recovery box 3, and the air and residual metal powder at the opening 5 at the bottom of the recovery beam 4 are sucked into the internal storage of the recovery box 3 through the pipeline and the hollow bar seat 6; the air pump flows the air into the interior of the horizontal pipe 9, and the air flow is then ejected downward from the air hole 10 at the bottom of the horizontal pipe 9. The air flow is blocked by the upper partition 7 and the lower partition 8, and flows along the passage formed by the upper partition 7 and the lower partition 8. The airflow flows through the channel, so that the airflow passes through the top surface of the lower die of the forming die 2 and then turns to the hollow strip seat 6; when the recovery beam 4 passes through the forming cavity on the lower die of the forming die 2, the airflow will impact the inside of the forming cavity, and carry out the residual metal powder entering the inside of the forming cavity, and carry it to the hollow strip seat 6, so that the residual metal powder is sucked into the hollow strip seat 6; thereby, the residual metal powder on the top surface of the lower die of the forming die 2 is recovered, and the weight of the residual metal powder entering the inside of the forming cavity of the forming die 2 is reduced, thereby improving the weight consistency of the workpiece pressed each time, and improving the product quality of the workpiece;

[0056] Finally, the extension beam 19 drives multiple conical barrels 36 to move to the molding cavity of the lower mold of the molding mold 2, and the bottom of the conical barrel 36 is aligned with the molding cavity of the lower mold of the molding mold 2. At this time, the electric push rod 39 drives the blocking slide 38 to slide, opening the bottom of the conical barrel 36, so that the metal powder inside the conical barrel 36 is injected into the molding cavity of the lower mold of the molding mold 2.

[0057] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A metal powder pressing and forming device, characterized in that: The invention comprises a hydraulic press (1); a forming die (2) is arranged on a workbench of the hydraulic press (1); a horizontal push assembly is arranged on one side of the workbench of the hydraulic press (1); an extension assembly is arranged on the top of one end of the horizontal push assembly away from the hydraulic press (1); the extension assembly can extend into the middle of the workbench of the hydraulic press (1); a recovery assembly is arranged on the bottom of one end of the extension assembly close to the hydraulic press (1), and the recovery assembly is used to recover metal powder; The recycling component comprises a recycling box (3); the recycling box (3) is arranged at the bottom of the hydraulic press (1); a vacuum pump is arranged on one side of the recycling box (3); a recycling beam (4) is arranged at the bottom of one end of the extension component close to the hydraulic press (1); an opening (5) is provided on the bottom surface of the recycling beam (4) close to the side of the forming mold (2); the bottom surface of the recycling beam (4) can be in sliding contact with the top surface of the lower mold of the forming mold (2); a hollow bar seat (6) is fixedly connected to the inner top surface of the recycling beam (4); a plurality of straight grooves are evenly arranged on the bottom of the hollow bar seat (6); and the top of the hollow bar seat (6) is connected to the recycling box (3) through a hose.

2. A metal powder pressing and forming device according to claim 1, characterized in that: An upper partition (7) is fixedly connected to the side of the internal top surface of the recovery beam (4) away from the forming mold (2); a lower partition (8) is fixedly connected to the middle of the internal bottom side of the recovery beam (4); the bottom side height of the upper partition (7) is lower than the top side height of the lower partition (8); a transverse tube (9) is arranged between the internal side of the recovery beam (4) away from the forming mold (2) and the upper partition (7); a plurality of air holes (10) are evenly arranged on the bottom surface of the transverse tube (9); and the transverse tube (9) is connected to an air pump via an air pipe.

3. A metal powder pressing and forming device according to claim 1, characterized in that: The push assembly comprises a pair of fixed seats (11); the two fixed seats (11) are fixedly connected to both sides of the hydraulic press (1); a sliding beam (12) is slidably mounted inside the fixed seats (11); a spur rack (13) is fixedly connected to the side of the sliding beam (12); a gear (14) is rotatably mounted inside the fixed seat (11); the gear (14) is meshed with the spur rack (13); a motor (15) is fixedly connected to both sides of the hydraulic press (1); the rotating shaft of the motor (15) is fixedly connected to the rotating shaft of the gear (14); and a fixed beam (16) is bolted to one end of the two sliding beams (12) away from the hydraulic press (1).

4. A metal powder pressing and forming device according to claim 3, characterized in that: The extension assembly comprises a transverse plate (17); the transverse plate (17) is arranged on the top surface of the fixed beam (16); a vertical plate (18) is fixedly connected to the middle of the top surface of the transverse plate (17); and an extension beam (19) is arranged on a side of the vertical plate (18) close to the hydraulic press (1).

5. A metal powder compacting device according to claim 4, characterized in that: A plurality of pairs of slots (20) are evenly arranged on both sides of the fixed beam (16); a plurality of pairs of U-shaped clips (21) are evenly fixedly connected to the bottom surfaces of both sides of the transverse plate (17); the U-shaped clips (21) are slidably matched with the slots (20); a locking bolt is slidably mounted inside each pair of the U-shaped clips (21), and the locking bolt passes through the fixed beam (16).

6. A metal powder compacting device according to claim 4, characterized in that: A sliding groove (22) is provided in the middle of the vertical plate (18); fixing grooves (23) are provided on both sides of the sliding groove (22); a T-shaped mounting seat (24) is provided on a side of the vertical plate (18) close to the hydraulic press (1); a convex column is fixedly connected to the middle of the T-shaped mounting seat (24); the convex column of the T-shaped mounting seat (24) is slidably matched with the sliding groove (22); a clamping plate (25) is slidably mounted on the outer ring of the convex column of the T-shaped mounting seat (24); the clamping plate (25) is provided on a side of the vertical plate (18) away from the hydraulic press (1); a plurality of long bolts are passed through the fixing groove (23) to lock the clamping plate (25) and the two ends of the T-shaped mounting seat (24); the T-shaped mounting seat (24) is fixedly connected to the extension beam (19).

7. A metal powder compacting device according to claim 6, characterized in that: A slide cylinder (26) is rotatably mounted on the bottom of one side of the vertical plate (18) away from the hydraulic press (1); a nut is rotatably mounted on the top of the slide cylinder (26); a screw rod (27) is rotatably mounted on the end of the convex column of the T-shaped mounting seat (24) away from the hydraulic press (1); the screw rod (27) is slidably arranged inside the slide cylinder (26); the screw rod (27) is threadably engaged with the nut on the top of the slide cylinder (26).

8. A metal powder compacting device according to claim 4, characterized in that: The extension beam (19) is provided with a plurality of through slots (28) at one end close to the hydraulic press (1); an adjusting cylinder (29) is slidably mounted inside the plurality of through slots (28); vertical slots (30) are provided on both sides of the adjusting cylinder (29); a pair of sliding blocks (31) is slidably mounted inside the adjusting cylinder (29); a plurality of springs (32) are fixedly connected between two of the sliding blocks (31); a bolt is fixedly connected to a side of the sliding block (31) away from the spring (32), and the bolt is connected to a side of the through slot (28); the bottom end of the middle adjusting cylinder (29) is fixedly connected to the top surface of the recovery beam (4).

9. A metal powder compacting device according to claim 8, characterized in that: A strip plate (33) is fixedly connected to the bottom end of an adjusting cylinder (29) close to the hydraulic press (1); a plurality of vertical rods (34) are fixedly connected to the bottom surface of the strip plate (33); and the bottom ends of the vertical rods (34) are capable of slidingly contacting the top surface of the lower mold of the molding mold (2).

10. The metal powder compacting device according to claim 8, characterized in that: A bracket (35) is fixedly connected to the bottom end of one of the regulating cylinders (29) away from the hydraulic press (1); a plurality of conical barrels (36) are fixedly connected to the bottom surface of the bracket (35); the plurality of conical barrels (36) correspond to the molding cavities of the molding die (2); a feeding slideway (37) is provided on one side of the top of the conical barrel (36); a blocking slide (38) is slidably mounted on one side of the bottom of the conical barrel (36); the blocking slide (38) can seal the bottom of the conical barrel (36); an electric push rod (39) is fixedly connected to the bottom of the conical barrel (36); and the piston rod of the electric push rod (39) is fixedly connected to the blocking slide (38).

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