A powder metallurgy part compaction forming apparatus

Abstract

The application discloses a powder metallurgy part press forming device, which comprises a circulating feeding mechanism, a pressing mechanism, a secondary processing mechanism and an intermittent discharging mechanism, the circulating feeding mechanism comprises a motor, and one side of the filtering assembly is provided with a lower pressing head assembly. The powder metallurgy part press forming device, the motor drives the rotating shaft to rotate the box, in the process of rotating the box, the two groups of brush plates on the side of the box clean and gather the powder accidentally dropped in the process of moving the box and the powder dropped in the process of press forming, when the box and the brush plate rotate to the upper side of the filtering assembly, the powder gathered by the brush plate will automatically fall through the filtering assembly and be uniformly recycled, so that the powder can be used twice, powder residues on the workbench can be prevented, the powder in the subsequent feeding process can be prevented from being moved and mixed with new powder, and the consistency and processing quality of the powder metallurgy part production can be ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of powder metallurgy part processing, in particular to a powder metallurgy part pressing forming device. BACKGROUND

[0002] Powder metallurgy is a process technology that uses metal powder or a mixture of metal powder and non-metal powder as raw material, through pressing forming and sintering, to manufacture metal materials, composite materials and various types of products. Through retrieval, it is found that the existing powder metallurgy part pressing forming device is typically a powder metallurgy part pressing forming machine with publication number CN114273654A. The powder metallurgy part pressing forming machine includes a rack with a workbench plate, an avoidance driving mechanism, and a layered pre-pressing device located above the workbench plate. The rack is installed with an upper pressing head assembly and a lower ejector rod assembly. The second driving assembly can drive the second pressing head to embed into the powder metallurgy part forming cavity of the pressing forming die from top to bottom. The main feature is that the layered pre-pressing device pre-presses the powder, which not only reduces the moving stroke of the pressing head, but also improves the moving speed of the pressing head, thereby improving the processing efficiency.

[0003] The existing powder metallurgy part pressing forming machine cannot simultaneously process the excess material remaining on the workbench during the feeding process, resulting in resource waste and work environment pollution. Moreover, the powder remaining on the workbench for a long time is easily mixed with new metal powder during the feeding process and is moved into the pressing head assembly for pressing, which makes the powder metallurgy part prone to affecting the consistency and quality of the product due to the difference in humidity or other factors between new and old powder. In view of the above problems, the existing equipment needs to be improved. SUMMARY

[0004] The purpose of the present application is to provide a powder metallurgy part pressing forming device to solve the problem of the existing powder metallurgy part pressing forming machine in the background art, which cannot simultaneously process the excess material remaining on the workbench during the feeding process, resulting in resource waste and work environment pollution. Moreover, the powder remaining on the workbench for a long time is easily mixed with new metal powder during the feeding process and is moved into the pressing head assembly for pressing, which makes the powder metallurgy part prone to affecting the consistency and quality of the product due to the difference in humidity or other factors between new and old powder.

[0005] In order to achieve the above object, the present application provides the following technical scheme: a powder metallurgy part press forming device, comprising a circulating feeding mechanism, a pressing mechanism, a secondary processing mechanism and an intermittent discharging mechanism, the circulating feeding mechanism comprises a motor, and the output end of the motor is fixedly connected with the bottom end of a rotating shaft, the side surface of the rotating shaft is fixedly connected with a material box, and the inner bottom of the material box is fixedly connected with a filter screen, the side surface bottom of the material box is fixedly connected with a brush plate, and the material box is arranged on the top of a machine table, the inner bottom of the material box is fixedly connected with a filter screen for filtering powder, the top of the machine table is provided with a filtering assembly, one side of the filtering assembly is provided with a lower pressing head assembly, and the filtering assembly and the lower pressing head assembly are both arranged on the outer side of the rotating shaft, and the filtering assembly and the lower pressing head assembly are both within the cleaning range of the brush plate, the pressing mechanism comprises an upper pressing head assembly, a lifting plate, a fixed plate, a top plate, a hydraulic cylinder and a hydraulic material ejecting assembly, and the upper pressing head assembly is installed at the bottom of the lifting plate, the top of the lifting plate is connected with the bottom end of the hydraulic cylinder, and the hydraulic cylinder is installed at the top of the top plate, and the bottom of the top plate is connected with the fixed plate, the upper pressing head assembly and the lower pressing head assembly are arranged oppositely, the lower pressing head assembly is provided below the hydraulic material ejecting assembly, and the hydraulic material ejecting assembly is installed in the machine table.

[0006] Preferably, the inner bottom of the material box is inclined, and the top of the material box is connected with a top rod, a plurality of discharge ports are arranged in an annular array on the top of the material box and outside the top rod, and a protective cover is arranged outside the discharge ports.

[0007] Preferably, the side surface of the material box is bonded with a protective pad, and the inner bottom of the material box is fixedly connected with a filter screen, the protective pad is arranged above the brush plate, and the brush plate and the protective pad are symmetrically arranged on the two side walls of the material box, the filtering assembly comprises a first filter plate and a second filter plate, and the first filter plate and the second filter plate are symmetrically distributed on the top of the machine table.

[0008] Preferably, the front side of the machine table is installed with a warning light, and the right side of the machine table is fixedly installed with a control cabinet and a control panel, and the control cabinet is arranged below the control panel.

[0009] Preferably, the filtering assembly is provided below with a surplus material collecting mechanism, and the surplus material collecting mechanism comprises a collecting box, a handle slot is formed in one side wall of the collecting box, an adjusting handle is rotatably connected in the handle slot, a rotating slot is formed in the handle slot, a lock rod is connected to the adjusting handle and arranged in the rotating slot, the inside of the collecting box is inclined, and the collecting box is slidingly connected in the inside of the machine table.

[0010] Preferably, one side of the collecting box is provided with a telescopic cam, and the telescopic cam is arranged on the rotating shaft in a penetrating manner, the telescopic cam comprises a fixed part, a telescopic part and a reset spring group, the fixed part is connected with the telescopic part through the reset spring group, and the fixed part is connected with the rotating shaft.

[0011] Preferably, the pressing mechanism also includes a guide rod and a sliding sleeve, and the guide rod is symmetrically arranged in four groups. The guide rod is slidably connected to the sliding sleeve, and the sliding sleeve is arranged inside the lifting plate, and the guide rod is arranged on the outside of the lower pressure head assembly.

[0012] Preferably, the secondary processing mechanism includes an airbag, a diverter box and an air port, and the airbag is arranged between the lifting plates and the fixed plates on both sides of the hydraulic cylinder. The airbag is connected to the diverter box through a pipeline, and an air port is opened at the bottom of the diverter box.

[0013] Preferably, the intermittent discharging mechanism includes a block seat, and the front side of the block seat is fixedly connected to one end of the support plate, and the other end of the support plate is fixedly connected to the inner wall of the material box, and at the same time, the top of the material box is snap-connected to the material cover, and a discharge port is provided at the bottom of the material box, and the material box is arranged on the outside of the block seat, a frame is provided on one side of the material box, and the frame is fixedly connected to the material box, a lifting column is provided below the block seat, and the top end of the lifting column is fixedly connected to a telescopic spring group, and the lifting column is slidably connected to the inside of the discharge port, a protective cover is provided on the outside of the telescopic spring group, and the top end of the telescopic spring group is fixedly connected to the bottom of the block seat.

[0014] Preferably, the top diameter of the lifting column is larger than the bottom diameter of the lifting column, and the diameter of the lifting column decreases from top to bottom. The lifting column is arranged corresponding to the push rod, and the top of the push rod is inclined with low sides and high in the middle.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the powder metallurgy part pressing and forming device,

[0016] (1) The present invention can effectively solve the problem that the existing powder metallurgy parts pressing and forming machines cannot synchronously process the residual materials remaining on the workbench during the feeding process, thereby causing waste of resources and pollution of the working environment. In addition, the powder remaining on the workbench for a long time is easily mixed with the new metal powder during the feeding process and is moved to the pressing head assembly for pressing, which makes the powder metallurgy parts easily affected by the different humidity of the new and old powders or other factors affecting the consistency and quality of the products. The motor drives the rotating shaft to drive the material box to rotate. During the rotation of the material box, the two sets of brush plates on its side successively clean and gather the powder accidentally dropped out during the movement of the material box and the powder dropped during the pressing and forming process. When the material box and the brush plate rotate to the top of the filter assembly, the powder gathered by the brush plate will automatically fall through the filter assembly and be uniformly recovered for secondary use, thereby preventing the powder from remaining on the workbench and preventing it from being moved and mixed with the new powder during the subsequent feeding process, thereby ensuring the consistency and processing quality of the powder metallurgy parts production;

[0017] (2) The present application can effectively solve the problem that the existing pressing forming device needs manual cleaning of a small amount of powder remaining on the surface of the workpiece after pressing forming, and attention should be paid to avoid deformation of the workpiece during cleaning, which is more troublesome to operate, the material box is driven to rotate and feed under the motor, and the workpiece pressed and ejected from the lower pressing head assembly is pushed to the filter assembly between the shunt box and the filter assembly, in addition, the air bag will discharge gas through the air blowing port at the bottom of the shunt box during the pressing process of the newly added metal powder, and the small amount of powder remaining on the workpiece is blown and cleaned from top to bottom, which is more efficient than manual cleaning and will not damage the workpiece. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is an isometric view of the powder metallurgy part pressing forming device of the present application;

[0019] Figure 2 It is an overall structure schematic diagram of the position relationship of the filter assembly, shaft and lower pressing head assembly of the powder metallurgy part pressing forming device on the machine table;

[0020] Figure 3 It is an overall cross-sectional structure schematic diagram of the connection relationship between the protective cover, discharge port, ejector rod, intermittent discharge mechanism, material box and cover of the powder metallurgy part pressing forming device;

[0021] Figure 4 It is a cross-sectional structure schematic diagram of the powder metallurgy part pressing forming device;

[0022] Figure 5 It is an intermittent discharge mechanism explosion structure schematic diagram of the powder metallurgy part pressing forming device;

[0023] Figure 6 It is an overall structure schematic diagram of the pressing mechanism of the powder metallurgy part pressing forming device;

[0024] Figure 7 It is an overall structure schematic diagram of the excess material collecting mechanism of the powder metallurgy part pressing forming device;

[0025] Figure 8 It is an overall structure schematic diagram of the first filter plate of the powder metallurgy part pressing forming device.

[0026] In the figure: 1, circulating feeding mechanism; 101, motor; 102, rotating shaft; 103, material box; 104, filter screen; 105, machine table; 106, filtering assembly; 1061, first filter plate; 1062, second filter plate; 107, protective pad; 108, brush plate; 2, lower pressing head assembly; 3, pressing mechanism; 301, upper pressing head assembly; 302, lifting plate; 303, fixed plate; 304, top plate; 305, hydraulic cylinder; 306, guide rod; 307, sliding sleeve; 308, hydraulic ejecting assembly; 4, secondary processing mechanism; 401, air bag; 402, flow divider box; 403, air blowing port; 5, protective cover; 6, discharging port; 7, ejector rod; 8, intermittent discharging mechanism; 801, blocking seat; 802, support plate; 803, telescopic spring set; 804, elastic protective net; 805, lifting column; 9, material box; 10, material cover; 11, machine frame; 12, excess material collecting mechanism; 1201, collecting box; 1202, handle groove; 1203, adjusting handle; 1204, locking rod; 1205, rotating groove; 13, control machine case; 14, warning light; 15, control panel. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0028] Please refer to Figures 1-8The application provides a technical scheme: a powder metallurgy part press forming device, which comprises a circulating feeding mechanism 1, a pressing mechanism 3, a secondary processing mechanism 4 and an intermittent discharging mechanism 8. The circulating feeding mechanism 1 comprises a motor 101, and the output end of the motor 101 is fixedly connected with the bottom end of a rotating shaft 102. A material box 103 is fixedly connected with the side surface of the rotating shaft 102. A brush plate 108 is fixedly connected with the bottom of the side surface of the material box 103. The material box 103 is arranged on the top of a machine table 105. A circular magnet is arranged on the bottom of the material box 103. A filter screen 104 for filtering powder is fixedly connected with the inner bottom of the material box 103. The filter screen 104 is arranged on one side of the circular magnet. The top of the machine table 105 is provided with a filtering assembly 106. One side of the filtering assembly 106 is provided with a lower pressing head assembly 2. The filtering assembly 106 and the lower pressing head assembly 2 are both arranged on the outer side of the rotating shaft 102 and are both within the cleaning range of the brush plate 108. In addition, the top of the machine table 105 is provided with a limiting frame. The pressing mechanism 3 comprises an upper pressing head assembly 301, a lifting plate 302, a fixed plate 303, a top plate 304, a hydraulic cylinder 305 and a hydraulic material ejecting assembly 308. The upper pressing head assembly 301 is arranged on the bottom of the lifting plate 302. The top of the lifting plate 302 is connected with the bottom end of the hydraulic cylinder 305. The hydraulic cylinder 305 is arranged on the top of the top plate 304. The bottom of the top plate 304 is connected with the fixed plate 303. The upper pressing head assembly 301 is arranged above the lower pressing head assembly 2. The hydraulic material ejecting assembly 308 is arranged below the lower pressing head assembly 2 and in the interior of the machine table 105. During work, first, the power supply is connected. The motor 101 is started to drive the rotating shaft 102 to drive the material box 103 to rotate along the inner wall of the limiting frame. When the material box 103 rotates to the top of the lower pressing head assembly 2, the powder in the material box 103 is filtered by the filter screen 104 on the bottom and then discharged into the lower pressing head assembly 2. Then, the telescopic end of the hydraulic material ejecting assembly 308 pushes the lifting plate 302 and the upper pressing head assembly 301 on the bottom to move downward to press the powder discharged into the lower pressing head assembly 2 from the bottom of the material box 103. After the pressing is completed, the hydraulic material ejecting assembly 308 pushes the powder metallurgy part in the lower pressing head assembly 2 to move upward, so that the press forming operation is realized. It should be noted that the lower pressing head assembly 2 and the upper pressing head assembly 301 are both fixed by bolts. The hydraulic material ejecting assembly 308 is composed of a hydraulic push rod and an ejecting block. The hydraulic push rod pushes the ejecting block to move upward to eject the powder metallurgy part pressed and formed in the lower pressing head assembly 2. On the other hand, during the rotation of the material box 103, the two groups of brush plates 108 on the side surface of the material box 103 sweep and gather the powder on the moving path of the material box 103 and the powder splashed during the press forming process. When the material box 103 and the brush plate 108 rotate to the upper side of the filtering assembly 106, the powder gathered by the brush plate 108 will automatically fall and be uniformly recycled through the filtering assembly 106, so that the mixing of new and old powder is avoided to affect the quality of the workpiece. During the rotation and sweeping of the brush plate 108, the brush plate 108 is in contact with the inner wall of the limiting frame. The limiting frame plays a role in limiting the extrusion and overflow range of the powder.When the brush plate 108 rotates to clean the powder, the powder remaining on the top of the machine table 105 is moved to the outside of the cleaning range by the rotating force, thereby ensuring the cleaning quality. It should be noted that the height of the limiting frame is smaller than the length of the upper pressing head assembly 301, which meets the requirement of pressing the workpiece by the lower pressing head assembly 2, thereby ensuring the normal operation of the forming work.

[0029] The inner bottom of the material box 103 is inclined, and the top of the material box 103 is connected with a top rod 7. A plurality of discharge ports 6 are arranged in an annular array on the top of the material box 103 and outside the top rod 7. A protective cover 5 is arranged outside the discharge port 6. In the prior art, the powder added through the discharge port 6 is easy to fall to other positions, thereby causing resource waste. During work, the powder enters the inside of the material box 103 through the discharge port 6, and the protective cover 5 plays a blocking role to prevent the powder from falling to the outside of the material box 103 when passing through the discharge port 6, thereby avoiding resource waste and improving the rationality of the structure of the device.

[0030] The side of the material box 103 is bonded with a protective pad 107, the protective pad 107 is arranged above the brush plate 108, and the brush plate 108 and the protective pad 107 are symmetrically arranged on the two side walls of the material box 103. The filtering assembly 106 includes a first filter plate 1061 and a second filter plate 1062, and the first filter plate 1061 and the second filter plate 1062 are symmetrically distributed on the top of the machine table 105. In the prior pressing and forming device, the pressing and forming workpiece is pushed to one side by the feeding assembly during feeding. In order to ensure the uniformity of feeding, the feeding assembly is swung back and forth during feeding, so that the powder in the feeding assembly falls uniformly into the inside of the mold. However, the continuous swinging and pushing of the workpiece can easily damage the workpiece. The protective pad 107 avoids direct contact between the workpiece and the side wall of the material box 103 during pushing of the material box 103. The flexible protective pad 107 can be deformed when it contacts the workpiece to provide a buffer space for the workpiece, thereby reducing the damage to the workpiece caused by frequent swinging. In order to improve the efficiency of pressing and forming, the material box 103 is rotated once for feeding, that is, the material box 103 can be rotated 180° in forward and reverse directions to alternately push the pressing and forming workpiece to the top of the first filter plate 1061 or the second filter plate 1062, that is, the moving distance of the material box 103 is shortened to improve the feeding efficiency of the device. It should be noted that the thickness of the protective pad 107 is greater than the thickness of the brush plate 108 as shown in the accompanying drawings, thereby preventing the brush plate 108 from contacting the workpiece during pushing of the workpiece, and further preventing the workpiece from being damaged by the brush plate 108. Figure 4

[0031] ​The front side of the machine table 105 is provided with a warning light 14, and the right side of the machine table 105 is fixedly provided with a control cabinet 13 and a control panel 15, and the control cabinet 13 is arranged below the control panel 15. When the pressing forming machine is in operation, the pressing assembly may accidentally injure the hands of the workers. In order to avoid this problem, the device is provided with a warning light 14. The warning light 14 automatically lights up when the device is in pressing forming work, and the workers can be prompted in this way to avoid accidental injury due to their slow reaction or wrong judgment. At the same time, the workers can adjust and set the pressing force and pressing time of the workpiece by operating the control panel 15.

[0032] A surplus material collecting mechanism 12 is arranged below the filtering assembly 106, and the surplus material collecting mechanism 12 comprises a collecting box 1201. A handle groove 1202 is formed in one side wall of the collecting box 1201, and an adjusting handle 1203 is rotatably connected in the handle groove 1202. A rotating groove 1205 is formed in the handle groove 1202, and a locking rod 1204 is connected to the adjusting handle 1203 and arranged in the rotating groove 1205. The inside of the collecting box 1201 is inclined, and the collecting box 1201 is slidably connected in the machine table 105. In order to recycle the cleaned powder and prevent resource waste, the collecting box 1201 is arranged to collect and store the powder falling through the first filter plate 1061 or the second filter plate 1062. When the storage is saturated, the worker can manually rotate the adjusting handle 1203 to rotate the locking rod 1204 to 180° to end the clamping with the machine table 105, and then the collecting box 1201 can be pulled out from the machine table 105, and the stored powder in the collecting box 1201 can be used for reprocessing and recycling.

[0033] A telescopic cam is arranged on the rotating shaft 102 and penetrates through the rotating shaft 102. The telescopic cam comprises a fixed part, a telescopic part and a reset spring set. The fixed part is connected with the telescopic part through the reset spring set, and the fixed part is connected with the rotating shaft 102. When the powder falls through the through holes in the first filter plate 1061 and the second filter plate 1062 and falls into the collecting box 1201, it can only fall into the fixed position directly below, which may easily cause local accumulation of the powder and affect the storage capacity. When the motor 101 drives the rotating shaft 102 to rotate the box 103, the telescopic cam on the rotating shaft 102 rotates synchronously. When the telescopic part of the telescopic cam rotates to collide with the side wall of the collecting box 1201, the collecting box 1201 will vibrate due to the impact, which promotes the dispersion of the powder in the collecting box 1201 and avoids local accumulation and blockage of the first filter plate 1061 or the second filter plate 1062, affecting the storage capacity of the collecting box 1201. After the collision, the telescopic cam is extruded to the reset spring set under the drive of the rotating shaft 102, so as to continue to rotate with the rotating shaft 102.

[0034] The pressing mechanism 3 further comprises guide rods 306 and sliding sleeves 307, four groups of the guide rods 306 are symmetrically arranged, the sliding sleeves 307 are slidably connected to the guide rods 306, the sliding sleeves 307 are arranged through the inside of the lifting plate 302, the guide rods 306 are arranged outside the lower pressing head assembly 2, the upper pressing head assembly 301 is prone to deviation and dislocation during the process of downward movement of the lifting plate 302, thereby affecting the pressing quality of the product, and causing the upper pressing head assembly 301 to fail to reset normally, the four groups of symmetrically distributed guide rods 306 play a role of auxiliary support and limiting when the lifting plate 302 drives the sliding sleeves 307 to move up and down, avoiding the influence of the position deviation of the lifting plate 302 on the pressing quality of the upper pressing head assembly 301 installed at the bottom of the lifting plate 302.

[0035] The secondary processing mechanism 4 comprises an air bag 401, a flow divider 402 and a blowing port 403, the air bag 401 is arranged between the lifting plate 302 and the fixed plate 303 on both sides of the hydraulic cylinder 305, the air bag 401 is connected to the flow divider 402 through a pipeline, the blowing port 403 is arranged at the bottom of the flow divider 402, a small amount of powder is usually left on the surface of the workpiece, i.e. the powder metallurgy piece, after pressing, and the powder will form burrs and affect the product quality after being burned, so it is necessary to clean it, the air bag 401 arranged at the top of the lifting plate 302 will be extruded when the hydraulic cylinder 305 moves upward and resets, the airflow in the air bag 401 after being extruded enters the flow divider 402 through the pipeline, and is discharged through the blowing port 403 at the bottom of the flow divider 402 to blow and clean the workpiece on the first filter plate 1061 and the second filter plate 1062, thereby ensuring the product quality of the workpiece, then the workpiece after being blown and cleaned can be transferred to a related area by the worker for storage.

[0036] The intermittent discharging mechanism 8 comprises a blocking seat 801, and the front side of the blocking seat 801 and one end of a supporting plate 802 are fixedly connected, and the other end of the supporting plate 802 and the inner wall of a material box 9 are fixedly connected, meanwhile, the top of the material box 9 is clampedly connected with a material cover 10, the bottom of the material box 9 is provided with a discharging port, and the material box 9 is arranged outside the blocking seat 801, one side of the material box 9 is provided with a rack 11, and the rack 11 is fixedly connected with the material box 9, the bottom of the blocking seat 801 is provided with a lifting column 805, the top end of the lifting column 805 is fixedly connected with a telescopic spring set 803, meanwhile, the lifting column 805 is slidably connected in the inside of the discharging port, the outside of the telescopic spring set 803 is provided with an elastic protective net 804, and the top end of the telescopic spring set 803 and the bottom of the blocking seat 801 are fixedly connected, when the powder in the material box 103 needs to be added, in order to avoid that the feeding operation affects the normal pressing work, the staff can operate the control panel 15 to control the motor 101, the rotating shaft 102 drives the material box 103 to rotate in the direction which does not affect the pressing work, and the material box 103 is moved to the top of the first filter plate 1061 or the second filter plate 1062 and then to the bottom of the material box 9, and in the process of rotating, the top rod 7 at the top of the material box 103 pushes the lifting column 805 to compress the telescopic spring set 803 to move upwards, so that the discharging channel is formed between the lifting column 805 and the discharging port at the bottom of the material box 9, then the powder in the material box 9 falls into the inside of the protective cover 5 through the discharging channel and enters the inside of the material box 103 through the discharging port 6 in the inside of the protective cover 5, so as to realize automatic feeding, when the feeding is completed, the motor 101 drives the rotating shaft 102 to drive the material box 103 to rotate away from the material box 9, and the specific performance is that the top rod 7 ends the extrusion on the lifting column 805, then the lifting column 805 moves to block the discharging port under the action of the telescopic spring set 803, in addition, because the powder in the material box 9 will block and affect the telescopic spring set 803 in the process of telescoping, the automatic discharging is affected, the elastic protective net 804 for blocking the powder is arranged outside the telescopic spring set 803, and the normal telescoping of the telescopic spring set 803 is ensured, so that the automatic discharging is realized, in addition, the first filter plate 1061 and the second filter plate 1062 are the same in structure and are both provided with double layers, as shown in the attached Figure 8As shown, and the top of the filter plate embedded connection rectangular magnet, while the upper layer of the filter plate and the lower layer of the filter plate rotating connection, and the filter hole size distribution on the upper and lower layers of the filter plate corresponding, when the box 103 is rotated to the first filter plate 1061 or the second filter plate 1062, the bottom of the box 103 circular magnet and rectangular magnet magnetic connection, so that the upper layer of the filter plate with the box 103 rotation, rotation when the upper layer of the filter plate and the lower layer of the filter plate on the filter hole in staggered shielding state, thereby avoiding the material inside the box 103 through the filter assembly 106 dropped to the inside of the collection box 1201, similarly when the material is completed, the box 103 reverse rotation reset, so as to drive the upper layer of the filter plate rotation reset and the upper and lower layers of the filter plate corresponding, at this time the filter hole of double layer filter plate corresponding, it should be noted that the inside of the machine table 105 is provided with a slot for the rotation of the upper layer of the filter plate, thereby ensuring the rotation range and the accuracy of the reset of the upper layer of the filter plate.

[0037] The top diameter of the lifting column 805 is greater than the bottom diameter of the lifting column 805, and the diameter of the lifting column 805 decreases from top to bottom, the lifting column 805 is correspondingly provided with the top rod 7, and the top of the top rod 7 is inclined with the middle part being higher than the two sides, the top rod 7 with the inclined top gradually increases the height of the extrusion of the lifting column 805, that is, gradually increases the size of the discharging channel between the discharging port and the lifting column 805, and correspondingly the discharging amount is gradually increased, and vice versa, so as to avoid the powder from spilling out.

[0038] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A powder metallurgy forming device, comprising a circulating feeding mechanism, a pressing mechanism, a secondary processing mechanism and an intermittent discharging mechanism, characterized in that: The filter screen is fixedly connected to the bottom of the box body, and the brush plate is fixedly connected to the bottom of the box body. The box body is arranged on the top of the box body, and the inner bottom of the box body is fixedly connected to the brush plate. The box body is arranged on the top of the machine body, and the inner bottom of the box body is fixedly connected to the filter screen for filtering the powder. The filter assembly is provided on the top of the machine body, and a lower pressure head assembly is provided on one side of the filter assembly. At the same time, the filter assembly and the lower pressure head assembly are both surrounded by the outer side of the rotating shaft, and the filter assembly and the lower pressure head assembly are both within the cleaning range of the brush plate. The pressing mechanism includes an upper pressure head assembly, and the upper pressure head assembly is mounted on the bottom of the lifting plate, the top of the lifting plate is connected to the bottom end of the hydraulic cylinder, and the hydraulic cylinder is mounted on the top of the top plate, and the bottom of the top plate is connected to a fixed plate, the upper pressure head assembly and the lower pressure head assembly are arranged oppositely up and down, and a hydraulic ejecting assembly is provided below the lower pressure head assembly, and the hydraulic ejecting assembly is installed inside the machine body. The secondary processing mechanism includes an air bag, a diverter box and an air blowing port, and the air bag is arranged between the lifting plates and the fixed plates on both sides of the hydraulic cylinder. The air bag is connected to the diverter box through a pipeline, and an air blowing port is opened at the bottom of the diverter box; The intermittent discharging mechanism includes a block seat, and the front side of the block seat is fixedly connected to one end of the support plate, and the other end of the support plate is fixedly connected to the inner wall of the material box, and at the same time, the top of the material box is snap-connected to the material cover, and a discharge port is provided at the bottom of the material box, and the material box is arranged on the outside of the block seat, a frame is provided on one side of the material box, and the frame is fixedly connected to the material box, a lifting column is provided below the block seat, and the top end of the lifting column is fixedly connected to a telescopic spring group, and the lifting column is slidably connected to the inside of the discharge port, a protective cover is provided on the outside of the telescopic spring group, and the top end of the telescopic spring group is fixedly connected to the bottom of the block seat.

2. The powder metallurgy part pressing and forming device according to claim 1, characterized in that: The inner bottom of the material box is inclined, and the top of the material box is connected to a push rod. The top of the material box and the outside of the push rod are provided with multiple discharge ports in a circular array, and a protective cover is provided on the outside of the discharge port.

3. The powder metallurgy part pressing and forming device according to claim 1, characterized in that: A protective pad is bonded to the side of the material box, and the protective pad is arranged above the brush plate, and the brush plate and the protective pad are symmetrically arranged on the outer walls of both sides of the material box. The filter assembly includes a first filter plate and a second filter plate, and the first filter plate and the second filter plate are symmetrically distributed on the top of the machine.

4. The powder metallurgy forming device according to claim 1, characterized in that: A warning light is installed on the front side of the machine, and a control box and a control panel are fixedly installed on the right side of the machine, and the control box is arranged below the control panel.

5. The powder metallurgy part pressing and forming device according to claim 1, characterized in that: A residual material collection mechanism is provided below the filter assembly, and the residual material collection mechanism includes a collection box, a handle groove is provided on one side wall of the collection box, and an adjustment handle is rotatably connected in the handle groove, and a rotation groove is provided in the handle groove, and a locking rod is connected to the adjustment handle, and the locking rod is provided inside the rotation groove, the interior of the collection box is inclined, and the collection box is slidably connected to the interior of the machine.

6. The powder metallurgy part pressing and forming device according to claim 5, characterized in that: A telescopic cam is provided on one side of the collection box, and the telescopic cam is arranged on the rotating shaft. The telescopic cam includes a fixed part, a telescopic part and a reset spring group. The fixed part is connected to the telescopic part through the reset spring group, and the fixed part is connected to the rotating shaft.

7. The powder metallurgy forming device according to claim 1, characterized in that: The pressing mechanism also includes a guide rod and a sliding sleeve, and the guide rod is symmetrically arranged in four groups. The guide rod is slidably connected to the sliding sleeve, and the sliding sleeve is arranged inside the lifting plate. At the same time, the guide rod is arranged on the outside of the lower pressure head assembly.

8. The powder metallurgy part pressing and forming device according to claim 1, characterized in that: The top diameter of the lifting column is larger than the bottom diameter of the lifting column, and the diameter of the lifting column decreases from top to bottom. The lifting column is correspondingly arranged to the push rod, and the top of the push rod is inclined with low sides and high in the middle.

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