A metal powder compacting device

Abstract

The present invention belongs to the technical field of powder metallurgy, and specifically relates to a device for pressing and forming metal powder, which includes a recovery box, a recovery cross beam, a hollow strip seat, an upper partition board, a lower partition board, a horizontal pipe and air holes; an air extraction pump extracts the internal air of the recovery box, and through a pipeline and the hollow strip seat, the air at the opening at the bottom of the recovery cross beam and the residual metal powder are sucked into the interior of the recovery box for storage; an air pump introduces air flow into the interior of the horizontal pipe, and the air flow then sprays downward from the air holes at the bottom of the horizontal pipe; when passing through the forming cavity on the lower die of the forming die, the air flow will impact the interior of the forming cavity, carry out the residual metal powder entering the interior of the forming cavity, and enable the residual metal powder to be sucked by the hollow strip seat; thereby recovering the residual metal powder on the top surface of the lower die of the forming die, reducing the weight of the residual metal powder entering the interior of the forming cavity of the forming die, and then improving the weight consistency of each pressed workpiece and the product quality of the workpiece.

Description

Technical Field

[0001] The present invention belongs to the technical field of powder metallurgy, and specifically relates to a device for pressing and forming metal powder. Background Art

[0002] Powder metallurgy is a metal product formed by using metal powder as raw material through pressing and sintering; by the method of powder metallurgy, it is very easy to quickly press a large number 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 the publication number of CN116765390A discloses a powder metallurgy part pressing and forming machine, which relates to the technical field of powder metallurgy. Aiming at the existing problem of only unilateral pressing, the following solution is proposed. It includes a base and a lower mold located above 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 jointly fixedly connected to a top plate. A stamping mechanism cooperating with the lower mold is arranged on the lower side of the top plate. An upper feeding mechanism for moving the powder into the inner side of the lower mold is arranged on the upper side of the base. An upper pressing mechanism for pressing the powder inside the lower mold upward 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 simultaneously from the upper and lower sides. A material ejecting mechanism cooperating with the upper pressing mechanism is arranged inside the lower mold. The present invention can enable the metallurgy part to be pressed simultaneously from the upper and lower sides, improve the pressing strength, and enable the whole pressing and unloading to be completed integrally, reducing the pressing and forming time and improving the efficiency.

[0004] When metal powder is pressed and formed in a forming mold, metal powder will remain on the mold, and the remaining metal powder will fall into the forming cavity of the mold, resulting in differences in the weight of the metal powder in the forming cavity each time, causing differences in the weight of each metal product, and further affecting the product quality of the metal product.

[0005] Therefore, the present invention provides a device for pressing and forming metal powder. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: A metal powder pressing and forming device described in the present invention includes a hydraulic press; a forming die is arranged on the workbench of the hydraulic press; a flat-pushing component is arranged on one side of the workbench of the hydraulic press; an extending component is arranged at the top of one end of the flat-pushing component away from the hydraulic press; the extending component can extend into the middle of the workbench of the hydraulic press; a recovery component is arranged at the bottom of one end of the extending component close to the hydraulic press, and the recovery component is used for recovering metal powder; the recovery component includes a recovery box; the recovery box is arranged at the bottom of the hydraulic press; an air extraction pump is arranged on one side of the recovery box; a recovery cross beam is arranged at the bottom of one end of the extending component close to the hydraulic press; an opening is formed on the bottom surface of the recovery cross beam close to one side of the forming die; the bottom surface of the recovery cross beam can be in sliding contact with the top surface of the lower die of the forming die; a hollow strip seat is fixedly connected to the inner top surface of the recovery cross beam; a plurality of straight grooves are uniformly formed at the bottom of the hollow strip seat; the top of the hollow strip seat is communicated with the recovery box through a hose; the air extraction 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 and residual metal powder at the opening at the bottom of the recovery cross beam are sucked into the interior of the recovery box through a pipeline and the hollow strip seat for storage; thus, the residual metal powder on the top surface of the lower die of the forming die is recovered, the weight of the residual metal powder entering the forming cavity of the forming die is reduced, and then the weight consistency of each pressed workpiece is improved, and the product quality of the workpiece is improved.

[0008] Preferably, an upper partition board is fixedly connected to the inner top surface of the recovery cross beam away from the forming die; a lower partition board is fixedly connected to the middle of the inner bottom side of the recovery cross beam; the bottom side height of the upper partition board is lower than the top side height of the lower partition board; a horizontal pipe is arranged between the inner side of the recovery cross beam away from the forming die and the upper partition board; a plurality of air holes are uniformly formed on the bottom surface of the horizontal pipe; the horizontal pipe is communicated with an air pump through an air pipe; thus, the cleaning degree inside the forming cavity on the lower die of the forming die is further improved, and then the weight consistency of the workpiece is further improved.

[0009] Preferably, the flat-pushing component 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 straight rack is fixedly connected to the side surface of the sliding beam; a gear is rotatably installed inside the fixed seats; the gear is meshed with the straight rack; motors are 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; it provides power for the movement of the recovery component.

[0010] Preferably, the extension assembly includes a cross plate; the cross 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 cross plate; an extension beam is arranged on one side of the vertical plate close to the hydraulic press; this avoids the obstruction of the hydraulic press to the recovery assembly.

[0011] Preferably, a plurality of pairs of clamping grooves are evenly formed on both sides of the fixed beam; a plurality of pairs of U-shaped clamping plates are evenly fixedly connected to the bottom surfaces of both sides of the cross plate; the U-shaped clamping plates are slidably matched with the clamping grooves; a locking bolt is slidably installed inside each pair of U-shaped clamping plates, and the locking bolt penetrates the fixed beam; thereby improving the connection strength between the extension assembly and the translation assembly, and then improving the stability of the recovery assembly during translation.

[0012] Preferably, a sliding groove is formed in the middle of the vertical plate; fixing grooves are formed on both sides of the sliding groove; a T-shaped mounting seat is arranged on one 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 clamping plate is slidably installed on the outer circle of the convex column of the T-shaped mounting seat; the clamping plate is arranged on the side of the vertical plate away from the hydraulic press; the clamping plate and the two ends of the T-shaped mounting seat are locked by a plurality of long bolts passing through the fixing grooves; the T-shaped mounting seat is fixedly connected to the extension beam; thereby adjusting the height of the extension beam to be suitable for different forming molds.

[0013] Preferably, a sliding cylinder is rotatably installed at the bottom of the side of the vertical plate away from the hydraulic press; a nut is rotatably installed at the top end of the sliding cylinder; a screw rod is rotatably installed at one end of the convex column of the T-shaped mounting seat away from the hydraulic press; the screw rod is slidably arranged inside the sliding cylinder; the screw rod is in threaded cooperation with the nut at the top end of the sliding cylinder; improving the stability of the extension beam.

[0014] Preferably, a plurality of through grooves are formed at one end of the extension beam close to the hydraulic press; adjustment cylinders are slidably installed inside the plurality of through grooves; vertical grooves are formed on both sides of the adjustment cylinders; a pair of sliders are slidably installed inside the adjustment cylinders; a plurality of springs are fixedly connected between the two sliders; a bolt is fixedly connected to the side of the slider away from the spring, and the bolt is connected to the side surface of the through groove; the bottom end of the middle adjustment cylinder is fixedly connected to the top surface of the recovery cross beam; facilitating the staff to adjust the height of the recovery assembly.

[0015] Preferably, a strip plate is fixedly connected to the bottom end of one of the adjustment cylinders close to 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 die of the forming mold; completing the blanking of the workpiece and the separation work from the metal powder.

[0016] Preferably, a bracket is fixedly connected to the bottom end of one of the adjusting cylinders 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 die; a feeding chute is arranged on one side of the top of the conical barrel; a blocking slide plate is slidably installed on one side of the bottom of the conical barrel; the blocking slide plate 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 plate; the feeding work of the metal powder is completed.

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

[0018] 1. For a metal powder pressing and forming device of the present invention, including a recovery box, a recovery cross beam, a hollow strip seat, an upper partition board, a lower partition board, a horizontal pipe and air holes; an air extraction pump on the side of the recovery box extracts the internal air of the recovery box, making the internal of the recovery box in a negative pressure state. Through a pipeline and the hollow strip seat, the air at the opening at the bottom of the recovery cross beam and the remaining metal powder are sucked into the interior of the recovery box for storage; an air pump introduces air flow into the interior of the horizontal pipe, and the air flow then sprays downward from the air holes at the bottom of the horizontal pipe. The air flow is blocked by the upper partition board and the lower partition board and flows along the channel formed by the upper partition board and the lower partition board, so that after the air flow passes through the top surface of the lower die of the forming die, it turns to the hollow strip seat; when the recovery cross beam passes through the forming cavity on the lower die of the forming die, the air flow will impact into the interior of the forming cavity, carry out the remaining metal powder entering the interior of the forming cavity, and carry it to the hollow strip seat, so that the remaining metal powder is sucked by the hollow strip seat; thereby recovering the remaining metal powder on the top surface of the lower die of the forming die, reducing the weight of the remaining metal powder entering the forming cavity of the forming die, and then improving the weight consistency of each pressed workpiece and the product quality of the workpiece.

[0019] 2. For a metal powder pressing and forming device of the present invention, including a strip board and a vertical rod; when the flat push assembly drives the extension beam to insert into the workbench of the hydraulic press, it drives the strip board and the vertical rod to slide over the top surface of the lower die of the forming die. The vertical rod pushes out the demolded workpiece. At the same time, the scattered vertical rods can avoid pushing out the remaining metal powder, reducing the disturbance to the remaining metal powder; thereby completing the blanking of the workpiece and the separation work from the metal powder, facilitating the recovery of the metal powder. Description of the Drawings

[0020] The present invention will be further described below with reference to the drawings.

[0021] Figure 1 is a three-dimensional view of the present invention;

[0022] Figure 2 is a three-dimensional view of the flat push assembly, the extension assembly and the recovery assembly in the present invention;

[0023] Figure 3is the perspective view of the recovery cross beam in the present invention;

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

[0025] Figure 5 is the perspective view of the horizontal pushing component in the present invention;

[0026] Figure 6 is the exploded view of the fixed seat in the present invention;

[0027] Figure 7 is the perspective view of the extension component in the present invention;

[0028] Figure 8 is the exploded view of the vertical plate in the present invention;

[0029] Figure 9 is the exploded view of the adjusting cylinder in the present invention;

[0030] Figure 10 is the perspective view of the strip board in the present invention;

[0031] Figure 11 is the perspective view of the conical barrel in the present invention;

[0032] Figure 12 is the sectional view of the conical barrel in the present invention;

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

[0034] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0035] As Figures 1 to 4As shown in the figure, a metal powder pressing and forming device according to an embodiment of the present invention includes a hydraulic press 1; a forming die 2 is arranged on the workbench of the hydraulic press 1; a flat pushing assembly is arranged on one side of the workbench of the hydraulic press 1; an extension assembly is arranged at the top of one end of the flat pushing 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 for recovering metal powder; the recovery assembly includes a recovery box 3; the recovery box 3 is arranged at the bottom of the hydraulic press 1; an air extraction pump is arranged on one side of the recovery box 3; a recovery cross beam 4 is arranged at the bottom of one end of the extension assembly close to the hydraulic press 1; an opening 5 is formed on the bottom surface of the recovery cross beam 4 close to one side of the forming die 2; the bottom surface of the recovery cross 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 cross beam 4; a plurality of straight grooves are uniformly formed at the bottom of the hollow strip seat 6; the top of the hollow strip seat 6 is communicated with the recovery box 3 through a hose; during operation, the hydraulic press 1 drives the forming die 2 to close the mold, so that the metal powder in the forming cavity of the forming die 2 is pressed into a workpiece, the hydraulic press 1 drives the forming die 2 to open the mold, and at the same time, the workpiece is demolded and blanked. At this time, metal powder will remain on the top surface of the lower die of the forming die 2; at this time, the flat pushing assembly drives the extension assembly and the recovery assembly to move towards the top surface of the lower die of the forming die 2, so that the bottom surface of the recovery cross beam 4 contacts the top surface of the lower die of the forming die 2 and slides along the top surface of the lower die of the forming die 2. At the same time, the air extraction pump on the side of the recovery box 3 extracts the air inside the recovery box 3, so that a negative pressure is generated inside the recovery box 3. Through the pipeline and the hollow strip seat 6, the air and the remaining metal powder at the opening 5 at the bottom of the recovery cross beam 4 are sucked into the inside of the recovery box 3 for storage; thereby, the metal powder remaining on the top surface of the lower die of the forming die 2 is recovered, the weight of the remaining metal powder entering the forming cavity of the forming die 2 is reduced, and then the weight consistency of each pressed workpiece is improved, and the product quality of the workpiece is improved.

[0036] As Figures 3 to 4 As shown in the figure, an upper partition 7 is fixedly connected to the inner top surface of the recovery cross beam 4 away from one side of the forming die 2; a lower partition 8 is fixedly connected to the middle of the inner bottom side of the recovery cross beam 4; the bottom side height of the upper partition 7 is lower than the top side height of the lower partition 8; a horizontal pipe 9 is arranged between the inner side of the recovery cross beam 4 away from the forming die 2 and the upper partition 7; a plurality of air holes 10 are uniformly formed on the bottom surface of the horizontal pipe 9; the horizontal pipe 9 is communicated with an air pump through an air pipe.

[0037] During operation, when air and residual metal powder at the opening 5 at the bottom of the recovery crossbeam 4 are sucked into the internal storage of the recovery box 3 through the pipeline and the hollow strip seat 6, the air pump introduces air flow into the interior of the horizontal pipe 9, and the air flow then sprays downward through the air holes 10 at the bottom of the horizontal pipe 9. Blocked by the upper partition plate 7 and the lower partition plate 8, the air flow flows along the channel formed by the upper partition plate 7 and the lower partition plate 8, so that after the air flow passes through the top surface of the lower die of the forming die 2, it turns to the hollow strip seat 6; when the recovery crossbeam 4 passes through the forming cavity on the lower die of the forming die 2, the air flow will impact the interior of the forming cavity, carry out the residual metal powder entering the interior of the forming cavity, and carry it to the hollow strip seat 6, so that the residual metal powder is sucked by the hollow strip seat 6; thereby further improving the cleanliness of the interior of the forming cavity on the lower die of the forming die 2, and then further improving the weight consistency of the workpiece.

[0038] As Figure 1 , Figure 2 , Figure 5 and Figure 6 shown, the flat push assembly includes 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 installed inside the fixed seat 11; a straight rack 13 is fixedly connected to the side surface of the sliding beam 12; a gear 14 is rotatably installed inside the fixed seat 11; the gear 14 meshes with the straight rack 13; motors 15 are 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 sliding beams 12 away from the hydraulic press 1;

[0039] During operation, when recovering and cleaning the residual metal powder on the top surface of the lower die of the forming die 2, the motor 15 drives the gear 14 to rotate inside the fixed seat 11, drives the straight rack 13 and the sliding beam 12 to slide along the fixed seat 11, and drives the extension assembly and the recovery assembly to slide towards the hydraulic press 1, thereby providing power for the movement of the recovery assembly.

[0040] As Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7 shown, the extension assembly includes a cross plate 17; the cross 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 cross plate 17; an extension beam 19 is arranged on one side of the vertical plate 18 close to the hydraulic press 1; by providing the cross plate 17, the vertical plate 18 and the extension beam 19, the recovery crossbeam 4 is suspended and fixed, and the recovery crossbeam 4 is driven by the extension beam 19 to be inserted into the workbench of the hydraulic press 1, thereby avoiding the blockage of the hydraulic press 1 to the recovery assembly.

[0041] As Figure 5 and Figure 7As shown, a plurality of pairs of card slots 20 are evenly opened on both sides of the fixed beam 16; a plurality of pairs of U-shaped clamping plates 21 are evenly fixed to the bottom surfaces of both sides of the cross plate 17; the U-shaped clamping plates 21 are slidably engaged with the card slots 20; a locking bolt is slidably installed inside each pair of U-shaped clamping plates 21, and the locking bolt penetrates through the fixed beam 16; by inserting the U-shaped clamping plates 21 into the inside of the card slots 20 and fixing them by passing the locking bolt through the middle of the U-shaped clamping plates 21 and penetrating through the fixed beam 16, the connection strength between the extension assembly and the translation assembly is improved, and then the stability of the recycling assembly during translation is improved.

[0042] As Figure 7 and Figure 8 shown, a chute 22 is opened in the middle of the vertical plate 18; fixing grooves 23 are opened on both sides of the chute 22; a T-shaped mounting seat 24 is arranged on one 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 engaged with the chute 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; the clamping plate 25 and both ends of the T-shaped mounting seat 24 are locked by a plurality of long bolts passing through the fixing grooves 23; the T-shaped mounting seat 24 is fixedly connected to the extension beam 19;

[0043] During operation, according to the height of the top surface of the lower die of the forming die 2, the height of the extension beam 19 is adjusted so that the bottom surface of the recycling cross beam 4 can be in sliding contact with the top surface of the lower die of the forming die 2; the T-shaped mounting seat 24 is controlled to slide along the chute 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 passing long bolts through the fixing grooves 23, and the T-shaped mounting seat 24 and the clamping plate 25 clamp and fix the vertical plate 18; thus, the height of the extension beam 19 is adjusted to be suitable for different forming dies 2.

[0044] As Figure 7 and Figure 8 shown, a sliding cylinder 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 sliding cylinder 26; a screw rod 27 is rotatably installed at one 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 sliding cylinder 26; the screw rod 27 is in threaded cooperation with the nut at the top of the sliding cylinder 26; by the threaded cooperation of the screw rod 27 and the nut at the top of the sliding cylinder 26, 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; thus, the stability of the extension beam 19 is improved.

[0045] As Figure 2 , Figure 7As shown in Fig. / 9, a plurality of through slots 28 are formed at one end of the extension beam 19 close to the hydraulic press 1; an adjusting cylinder 29 is slidably installed inside the plurality of through slots 28; vertical slots 30 are formed 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 the two sliders 31; a bolt is fixedly connected to the 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 cross 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 through the bolt 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 recovery component.

[0047] As Figure 1 、 Figure 2 and Figure 10 shown, a strip plate 33 is fixedly connected to the bottom end of one 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 end of the vertical rod 34 can be in sliding contact with the top surface of the lower die of the forming die 2.

[0048] During operation, when the flat pushing component drives the extension beam 19 to insert into the working table of the hydraulic press 1, it drives the strip plate 33 and the vertical rod 34 to slide over the top surface of the lower die of the forming die 2, and the vertical rod 34 pushes out the workpiece after demoulding. At the same time, the scattered vertical rods 34 can avoid pushing out the residual metal powder, reducing the disturbance to the residual metal powder; thus, the blanking of the workpiece and the separation from the metal powder are completed, facilitating the recovery of the metal powder.

[0049] As Figure 1 、 Figure 2 、 Figure 11 and Figure 12 shown, a bracket 35 is fixedly connected to the bottom end of one adjusting cylinder 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 die 2; a feeding slideway 37 is arranged on one side of the top of the conical barrel 36; a blocking slide plate 38 is slidably installed on one side of the bottom of the conical barrel 36; the blocking slide plate 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 plate 38.

[0050] During operation, when the hydraulic press 1 drives the forming die 2 to close the mold and press the workpiece, at this time, metal powder is injected into the feeding chute 37 of the conical barrel 36. The metal powder is stored inside the conical barrel 36. After the forming die 2 has been unloaded and cleaned, the extension beam 19 drives multiple conical barrels 36 to move to the forming cavity of the lower die of the forming die 2. The bottom of the conical barrel 36 is aligned with the forming cavity of the lower die of the forming die 2. At this time, the electric push rod 39 drives the blocking slide plate 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 forming cavity of the lower die of the forming die 2; thus completing the feeding work of the metal powder.

[0051] Working principle: According to the height of the top surface of the lower die of the forming die 2, adjust the height of the extension beam 19 so that the bottom surface of the recovery cross beam 4 can slide into contact with the top surface of the lower die of the forming die 2; control the T-shaped mounting seat 24 to slide along the chute 22 to adjust the height of the extension beam 19; when the height adjustment of the extension beam 19 is completed, lock and fix the T-shaped mounting seat 24 and the clamping plate 25 through the long bolt penetrating the fixing groove 23. The T-shaped mounting seat 24 and the clamping plate 25 clamp and fix the vertical plate 18; through the screw 27 being threadedly engaged with the nut at the top of the sliding cylinder 26, the convex post of the T-shaped mounting seat 24 is connected to the bottom of the vertical plate 18 to tension the T-shaped mounting seat 24;

[0052] Push the adjusting cylinder 29 to slide along the through groove 28 and lock and fix the slider 31 to the side of the through groove 28 with bolts to fix the adjusting cylinder 29; adjust the heights of the recovery cross beam 4, the strip plate 33 and the conical barrel 36 so that the bottom surface of the recovery cross beam 4 can contact the top surface of the lower die of the forming die 2, and the vertical rod 34 at the bottom surface of the strip plate 33 can push out the workpiece after demolding, and the bottom of the conical barrel 36 can approach the forming cavity of the lower die of the forming die 2;

[0053] When the hydraulic press 1 drives the forming die 2 to close the mold and press the workpiece, at this time, metal powder is injected into the feeding chute 37 of the conical barrel 36. 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, driving the straight rack 13 and the sliding beam 12 to slide along the fixed seat 11, driving the extension assembly and the recovery assembly to slide towards the hydraulic press 1; when driving the extension beam 19 to insert into the workbench of the hydraulic press 1, driving the strip plate 33 and the vertical rod 34 to slide over the top surface of the lower die of the forming die 2, and the vertical rod 34 pushes out the workpiece after demolding. At the same time, the scattered vertical rods 34 can avoid pushing out the residual metal powder, reducing the disturbance to the residual metal powder;

[0055] After that, the extension beam 19 drives the bottom surface of the recovery cross beam 4 to contact the top surface of the lower die of the forming die 2 and slide while adhering to the top surface of the lower die of the forming die 2. At the same time, the air pump on the side of the recovery box 3 pumps out the internal air of the recovery box 3, creating a negative pressure inside the recovery box 3. Through the pipeline and the hollow strip seat 6, the air at the opening 5 at the bottom of the recovery cross beam 4 and the residual metal powder are sucked into the interior of the recovery box 3 for storage; the air pump introduces air flow into the interior of the horizontal pipe 9, and the air flow then sprays downward from the air holes 10 at the bottom of the horizontal pipe 9. Blocked by the upper partition plate 7 and the lower partition plate 8, the air flow flows along the channel formed by the upper partition plate 7 and the lower partition plate 8, so that after the air flow passes through the top surface of the lower die of the forming die 2, it turns to the hollow strip seat 6; when the recovery cross beam 4 passes through the forming cavity on the lower die of the forming die 2, the air flow will impact the interior of the forming cavity, carry out the residual metal powder entering the interior of the forming cavity, and carry it to the hollow strip seat 6, so that the residual metal powder is sucked by the hollow strip seat 6; thereby recovering the residual metal powder on the top surface of the lower die of the forming die 2, reducing the weight of the residual metal powder entering the interior of the forming cavity of the forming die 2, and then improving the weight consistency of each pressed workpiece and the product quality of the workpiece;

[0056] Finally, the extension beam 19 drives a plurality of conical barrels 36 to move to the forming cavity of the lower die of the forming die 2. The bottom of the conical barrel 36 is aligned with the forming cavity of the lower die of the forming die 2. At this time, the electric push rod 39 drives the blocking slide plate 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 forming cavity of the lower die of the forming die 2.

[0057] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal powder pressing and forming device, characterized in that: It includes a hydraulic press (1); a forming die (2) is arranged on the workbench of the hydraulic press (1); a flat pushing component is arranged on one side of the workbench of the hydraulic press (1); an extension component is arranged at the top of the end of the flat pushing component far from the hydraulic press (1); the extension component can extend into the middle of the workbench of the hydraulic press (1); a recovery component is arranged at the bottom of the end of the extension component close to the hydraulic press (1), and the recovery component is used for recovering metal powder. The recovery component includes a recovery box (3); the recovery box (3) is arranged at the bottom of the hydraulic press (1); an air extraction pump is arranged on one side of the recovery box (3); a recovery cross beam (4) is arranged at the bottom of the end of the extension component close to the hydraulic press (1); an opening (5) is formed on the bottom surface of the recovery cross beam (4) close to one side of the forming die (2); the bottom surface of the recovery cross 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 cross beam (4); a plurality of straight grooves are uniformly formed at the bottom of the hollow strip seat (6); the top of the hollow strip seat (6) is communicated with the recovery box (3) through a hose. An upper partition plate (7) is fixedly connected to the inner top surface of the recovery cross beam (4) far from one side of the forming die (2); a lower partition plate (8) is fixedly connected to the middle of the inner bottom side of the recovery cross beam (4); the bottom side height of the upper partition plate (7) is lower than the top side height of the lower partition plate (8); a horizontal pipe (9) is arranged between the inner side of the recovery cross beam (4) far from the forming die (2) and the upper partition plate (7); a plurality of air holes (10) are uniformly formed on the bottom surface of the horizontal pipe (9); the horizontal pipe (9) is communicated with an air pump through an air pipe. The flat pushing component includes 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 installed inside the fixed seat (11); a straight rack (13) is fixedly connected to the side surface of the sliding beam (12); a gear (14) is rotatably installed inside the fixed seat (11); the gear (14) is meshed with the straight rack (13); motors (15) are 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 the ends of the two sliding beams (12) far from the hydraulic press (1).

2. The metal powder pressing and forming device according to claim 1, wherein: The extension component includes a cross plate (17); the cross 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 cross plate (17); an extension beam (19) is arranged on the side of the vertical plate (18) close to the hydraulic press (1).

3. A metal powder compacting device according to claim 2, characterized in that: A plurality of pairs of clamping grooves (20) are uniformly formed on both sides of the fixed beam (16); a plurality of pairs of U-shaped clamping plates (21) are uniformly fixedly connected to the bottom surfaces of both sides of the cross plate (17); the U-shaped clamping plates (21) are in sliding fit with the clamping grooves (20); a locking bolt is slidably installed inside each pair of U-shaped clamping plates (21), and the locking bolt penetrates through the fixed beam (16).

4. A metal powder pressing and forming device according to claim 2, characterized in that: A chute (22) is provided in the middle of the vertical plate (18); fixing grooves (23) are provided on both sides of the chute (22); a T-shaped mounting seat (24) is provided on one 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 engaged with the chute (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 arranged on the side of the vertical plate (18) away from the hydraulic press (1); the clamping plate (25) and the two ends of the T-shaped mounting seat (24) are locked by a plurality of long bolts passing through the fixing grooves (23); the T-shaped mounting seat (24) is fixedly connected to the extension beam (19).

5. A metal powder compacting device according to claim 4, characterized in that: A sliding cylinder (26) is rotatably mounted at the bottom on the side of the vertical plate (18) away from the hydraulic press (1); a nut is rotatably mounted at the top of the sliding cylinder (26); a screw rod (27) is rotatably mounted at 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 sliding cylinder (26); the screw rod (27) is in threaded cooperation with the nut at the top of the sliding cylinder (26).

6. A metal powder pressing and forming device according to claim 2, characterized in that: A plurality of through grooves (28) are provided at one end of the extension beam (19) close to the hydraulic press (1); an adjusting cylinder (29) is slidably mounted inside the plurality of through grooves (28); vertical grooves (30) are provided on both sides of the adjusting cylinder (29); a pair of sliding blocks (31) are slidably mounted inside the adjusting cylinder (29); a plurality of springs (32) are fixedly connected between the two sliding blocks (31); a bolt is fixedly connected to the side of the sliding block (31) away from the spring (32), and the bolt is connected to the side of the through groove (28); the bottom end of the middle adjusting cylinder (29) is fixedly connected to the top surface of the recovery cross beam (4).

7. The metal powder compacting device according to claim 6, characterized in that: A strip plate (33) is fixedly connected to the bottom end of one 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 die of the forming die (2).

8. A metal powder pressing and forming device according to claim 6, characterized in that: A bracket (35) is fixedly connected to the bottom end of one adjusting cylinder (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 die (2); a feeding slideway (37) is provided on one side of the top of the conical barrel (36); a blocking slide plate (38) is slidably mounted on one side of the bottom of the conical barrel (36); the blocking slide plate (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 plate (38).

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