Punch forming device for powder metallurgy

Abstract

The invention relates to the technical field of metal powder metallurgy, in particular to a punch forming device for powder metallurgy, which comprises a fixed cylinder and an electric rotating disc mounted on a cylinder body, discharging grooves are uniformly formed in the circumferential direction of the electric rotating disc at intervals, the outer side surface of the cylinder body is fixedly connected with a baffle plate in contact with the top of the electric rotating disc, and the baffle plate is obliquely arranged. When an electric stamping block moves downwards to press metal powder in a discharging groove, a driving motor is started to rotate reversely to drive a lead screw to rotate reversely, the lead screw rotates reversely to drive a scraping cover to move leftwards through a sliding frame, the scraping cover moves leftwards to remove redundant metal powder on the top of an electric rotating disc, and therefore waste caused by metal powder residues is prevented. According to the metal powder stamping device, redundant metal powder on the top of the electric rotating disc can be scraped while metal powder is stamped and formed, extra time for waiting for cleaning is not needed, and therefore the stamping efficiency is improved.

Description

Technical Field

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

[0002] Powder metallurgy, as an important material preparation and forming technology, is widely used in a variety of fields, including automotive parts, tool manufacturing, electronic equipment, and aerospace. One of its core processes is powder stamping, where metal or non-metallic powders are pressed into a mold to form components of the desired shape and size. The stamped components are then subjected to subsequent processing.

[0003] The Chinese patent publication number CN116511498B discloses a powder metallurgy stamping equipment, comprising: a fixed cylinder and a frame, the fixed cylinder is provided with a forming cavity and a demoulding assembly, the frame is provided with a discharge assembly and a stamping assembly, the discharge assembly includes a storage bin and a discharge pipe, the stamping assembly includes a guide cylinder, a connecting cylinder, a stamping rod and a stamping cylinder, the upper end of the guide cylinder is fixed to the bottom end of the storage bin, the stamping cylinder is connected to the stamping rod, the stamping rod is arranged in the connecting cylinder and pushes the connecting cylinder to slide in the guide cylinder, the upper end of the connecting cylinder forms a connecting cavity, and the lower end of the connecting cylinder forms a connecting cavity. A blanking bin is formed at the end, a discharge pipe is connected to the blanking bin, a discharge port is provided on the blanking bin, and a pushing assembly for flattening the raw material is also provided at the bottom of the connecting cylinder. The pushing assembly is pushed to rotate during the downward movement of the connecting cylinder. Although the above patent can remove and collect excess metal powder, it is necessary to remove and collect the excess metal powder after the metal powder is stamped and formed. The excess metal powder cannot be removed at the same time as stamping and forming. It is necessary to wait for the removal of the excess metal powder, which consumes a lot of time and leads to a decrease in subsequent stamping efficiency.

[0004] The present invention aims to solve the problems existing in the above patents. To this end, a powder metallurgy stamping forming device is proposed, which can remove excess metal powder while stamping, without the need for additional waiting time for cleaning, thereby improving stamping efficiency. Summary of the Invention

[0005] In order to overcome the shortcomings of needing to remove and collect excess metal powder after metal powder stamping and forming, being unable to remove excess metal powder while stamping and forming, needing to wait for excess metal powder to be removed, consuming a lot of time, and resulting in reduced subsequent stamping efficiency, the present invention provides a powder metallurgy stamping and forming device that can remove excess metal powder while stamping, without the need for additional waiting time for removal, thereby improving stamping efficiency.

[0006] The present invention is achieved through the following technical solutions: A powder metallurgy stamping forming device comprises a fixed cylinder and an electric rotating disk mounted on the cylinder, the electric rotating disk is provided with discharge troughs at evenly spaced intervals in the circumference, a baffle in contact with the top of the electric rotating disk is fixedly connected to the outer side surface of the cylinder, the baffle is inclined, an L-shaped plate is fixedly connected to the cylinder, an electric stamping block corresponding to the discharge trough is fixedly connected to the L-shaped plate, a spraying assembly is provided on the cylinder for spraying metal powder into the discharge trough, and further comprises a fixed seat, a ejecting assembly, a guide plate, a scraper cover, a sliding frame, a driving motor, a screw and a mixing assembly, the ejecting assembly is installed between the electric rotating disk and the cylinder for ejecting the stamped parts, a fixed seat is fixedly connected to the outer side surface of the cylinder, a sliding frame is symmetrically slidably connected to the inner side of the fixed seat, and the ends of the sliding frame are fixedly connected There is a scraper cover in contact with the top of the electric rotating disk, a guide plate in contact with the scraper cover is fixed to the inner side of the fixed seat, a screw rod threadedly connected to one of the sliding frames is rotatably connected to the fixed seat, and a drive motor is installed on the fixed seat. The output shaft of the drive motor and the screw rod are transmitted through a synchronous belt assembly. When the electric punching block starts to punch and form the metal powder in the discharge trough, the drive motor drives the scraper cover to move to the left through the screw rod and the sliding frame, so that the scraper cover can scrape off excess metal powder on the electric rotating disk while the electric punching block punches the metal powder. The mixing assembly is installed on the scraper cover for conveying and mixing the metal powder. The spraying assembly is installed between the cylinder and the fixed seat for spraying the metal powder into the mixing assembly.

[0007] Further explanation, the spray assembly includes a collecting frame fixed to the outer side of the cylinder, the collecting frame is fixedly connected to the fixed seat, a nozzle is installed on the collecting frame, the discharge end of the nozzle is connected to the mixing assembly to discharge the metal powder into the mixing assembly, the nozzle is a hose, and a receiving hopper is fixedly connected to the fixed seat for collecting and guiding the cleared metal powder, and a discharge pipe is connected between the receiving hopper and the collecting frame.

[0008] Further explanation, the ejecting assembly includes ejecting rods that are evenly spaced and slidably connected to the circumference of the electric rotating disk. The top of the ejecting rod is located on the inside of the discharge trough to push the stamped parts out of the discharge trough. A connecting spring is connected between the ejecting rod and the electric rotating disk. A fixed disk is fixed to the inside of the fixed cylinder along the circumference. A trapezoidal block corresponding to the ejecting rod is fixed to the top of the fixed disk to drive the ejecting rod to move upward.

[0009] Further explanation, the mixing assembly includes a connector fixedly connected to the top of the scraper hood, the connector is fixedly connected to the discharge end of the nozzle, a barrel is rotatably connected to the connector, a spiral conveying shaft is fixedly connected to the inside of the barrel to drive the metal powder to move downward for mixing and conveying, a scraper is fixedly connected to the outer side of the barrel that contacts the top of the electric rotating disk, which is used to scrape the metal material on the top of the electric rotating disk, a stepper motor is installed on the scraper hood, and the output shaft of the stepper motor and the barrel are driven by a synchronous belt assembly.

[0010] Further explanation, the stamping forming device for powder metallurgy also includes a cleaning component, which includes an annular brush fixed to the circumference of the outer side surface of the scraper cover, the annular brush contacts the top of the electric rotating disk, and is used to remove excess metal powder from the top of the electric rotating disk. The top of the annular brush is fixed with an outer ring gear along the circumference, and the scraper cover is fixed with a fixed plate. A spur gear meshing with the outer ring gear is rotatably connected to the fixed plate, and the shaft of the spur gear is fixedly connected to the end of the output shaft of the stepper motor.

[0011] Further explanation, the stamping forming device for powder metallurgy also includes a pushing assembly, which includes a belt assembly installed horizontally on the baffle. A pushing rod is fixedly connected to the outer side of the belt assembly, which is used to push the ejected parts off the electric rotating disk. A receiving frame is fixedly connected to the outer side of the cylinder to collect the stamped parts. An elastic cloth is connected between the inner side of the receiving frame and the baffle to cushion the parts. A trigger assembly is provided between the belt assembly and the baffle to drive the belt assembly to rotate.

[0012] Further explanation, the trigger assembly includes a mounting plate fixed to the baffle, a rotating shaft rotatably connected to the mounting plate, a friction wheel in contact with the outer side of the electric rotating disk fixed to the bottom end of the rotating shaft, a rotating rod located on the right side of the rotating shaft rotatably connected to the mounting plate, the rotating rod and the rotating shaft are connected by a gear transmission, and the rotating rod and the shaft of the belt assembly are transmitted through a synchronous belt assembly.

[0013] To further illustrate, the powder metallurgy stamping forming device also includes a mesh plate fixed to the bottom of the fixed base. The mesh plate is located directly above the receiving hopper and is used to block foreign debris.

[0014] The beneficial effects of the present invention are: 1. Whenever the electric punching block moves downward to discharge the metal powder in the trough, the drive motor is started to reverse and drive the screw to reverse. The screw reversal drives the scraper cover to move to the left through the sliding frame. The scraper cover moves to the left to remove the excess metal powder on the top of the electric rotating disk to prevent waste caused by residual metal powder. In this way, the metal powder can be stamped and formed while the excess metal powder on the top of the electric rotating disk can be scraped off without waiting for extra cleaning time, thereby improving the stamping efficiency.

[0015] 2. Under the action of the annular brush, whenever the scraping cover moves to the left, the annular brush moves to the left and rotates to remove the metal powder that has not been scraped by the scraping cover, and can further remove the metal powder, so that the excess metal powder is removed more cleanly.

[0016] 3. Under the action of the push rod, whenever the electric rotating disk rotates forward, the electric rotating disk can drive the friction wheel to reverse, which makes the belt assembly drive the push rod to rotate forward. The forward rotation of the push rod can push the parts on the electric rotating disk onto the elastic cloth, which can prevent the parts from remaining on the electric rotating disk and being difficult to be pushed down by the baffle for collection, thereby ensuring that the parts are collected smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the top material assembly of the present invention.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the scraping cover and the sliding frame of the present invention.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the driving motor and the lead screw of the present invention.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the mixing assembly of the present invention.

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the spiral conveying shaft of the present invention.

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the cleaning component of the present invention.

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of the material splicing component of the present invention.

[0025] Figure 9 Schematic diagram of the three-dimensional structure of the elastic fabric of the present invention.

[0026] Figure 10 It is a schematic diagram of the three-dimensional structure of the screen plate of the present invention.

[0027] The numbers in the figure are: 1. Fixed cylinder, 2. Electric rotating disk, 3. Discharge trough, 31. Baffle, 4. L-shaped plate, 5. Electric punching block, 6. Collection frame, 7. Nozzle, 8. Receiving hopper, 9. Discharge pipe, 10. Fixed seat, 11. Ejector rod, 111. Connecting spring, 112. Fixed disk, 113. Trapezoidal block, 12. Guide plate, 13. Scrape cover, 14. Sliding frame, 15. Drive motor, 16. Wire Rod, 17, connecting head, 171, cylinder, 172, stepping motor, 1721, screw conveyor shaft, 173, scraper, 18, annular brush, 181, outer ring gear, 182, fixed plate, 183, spur gear, 19, material receiving frame, 191, elastic cloth, 192, belt assembly, 193, push rod, 194, rotating shaft, 195, friction wheel, 196, rotating rod, 197, mounting plate, 20, screen plate. DETAILED DESCRIPTION

[0028] First of all, it should be noted that in the various described embodiments, identical components are provided with identical reference numerals or identical component names, wherein the disclosure contained throughout the entire description can be transferred to the same components having the same reference numerals or identical component names. Positional designations selected in the description, such as top, bottom, lateral, etc., also refer to the directly described and illustrated figures and are transferred to the new position in the event of a change in position.

[0029] Example: A stamping device for powder metallurgy, see Figures 1-6As shown, it includes a fixed cylinder 1 and an electric rotating disk 2 installed on the cylinder 171. The electric rotating disk 2 has three discharge troughs 3 evenly spaced around the circumference. The discharge trough 3 can collect metal powder. A baffle 31 is fixed on the upper right side of the outer side of the cylinder 171. The baffle 31 contacts the top of the electric rotating disk 2. The baffle 31 is tilted. An L-shaped plate 4 is fixed on the upper part of the outer rear side of the cylinder 171. An electric punching block 5 is fixed on the top of the L-shaped plate 4. The electric punching block 5 corresponds to the discharge trough 3. A spraying assembly is provided on the left side of the outer side of the cylinder 171. When the spraying assembly is in operation, the spray The material assembly can realize the spraying of metal powder into the discharge trough 3, and also includes a fixed seat 10, a material ejecting assembly, a guide plate 12, a scraping cover 13, a sliding frame 14, a driving motor 15, a screw 16 and a mixing assembly. The material ejecting assembly is installed between the electric rotating disk 2 and the cylinder 171. When the material ejecting assembly is in operation, the material ejecting assembly can realize the ejection of the stamped parts. The fixed seat 10 is fixedly connected to the upper left side of the cylinder 171. The bottom of the fixed seat 10 is in the same horizontal plane as the top of the electric rotating disk 2. The sliding frame 14 is symmetrically slidably connected to the inner side of the fixed seat 10. A scraper cover 13 is fixed between the ends of the rear two side sliding frames 14 close to each other, and the bottom of the scraper cover 13 contacts the top of the electric rotating disk 2. A guide plate 12 is fixed to the bottom of the fixed seat 10, and the inner side of the guide plate 12 contacts the scraper cover 13. The front side of the fixed seat 10 is laterally rotated and penetrated with a screw rod 16, which is threadedly connected to the front side sliding frame 14. A drive motor 15 is installed on the left side of the outer front side of the fixed seat 10. The output shaft of the drive motor 15 and the left side of the screw rod 16 are driven by a synchronous belt assembly. The electric punching block 5 starts to press the metal powder in the discharge trough 3 During stamping, the driving motor 15 drives the screw 16 to rotate, and the screw 16 drives the scraper cover 13 to move to the left through the sliding frame 14, so that the scraper cover 13 can scrape off the excess metal powder on the electric rotating disk 2 while the electric stamping block 5 is stamping the metal powder. The mixing component is installed on the scraper cover 13. When the mixing component is operating, the mixing component can realize the transportation and mixing of the metal powder. The spraying component is installed between the cylinder 171 and the fixed seat 10. When the spraying component is operating, the spraying component can realize the spraying of metal powder into the mixing component.

[0030] See also Figure 1 and Figure 2 As shown, the spraying assembly includes a collecting frame 6, a nozzle 7, a receiving hopper 8 and a discharge pipe 9. The collecting frame 6 is fixedly connected to the left front side of the cylinder 171. The upper part of the outer side surface of the collecting frame 6 is fixedly connected to the left side of the fixed seat 10. The nozzle 7 is installed on the upper right side of the collecting frame 6. The discharge end of the nozzle 7 is connected to the mixing assembly. The nozzle 7 can discharge the metal powder into the mixing assembly. The nozzle 7 is a hose. The receiving hopper 8 is fixedly connected to the left side of the fixed seat 10. The receiving hopper 8 can collect and guide the cleared metal powder. A discharge pipe 9 is connected between the bottom end of the receiving hopper 8 and the lower part of the collecting frame 6.

[0031] See also Figure 2 As shown, the ejecting assembly includes a ejecting rod 11, a connecting spring 111, a fixed disk 112 and a trapezoidal block 113. Three ejecting rods 11 are slidably connected to the electric rotating disk 2 at uniform intervals along the circumferential direction. The top ends of the three ejecting rods 11 are respectively located on the inner sides of the three discharge troughs 3. When the ejecting rods 11 move upward, the ejecting rods 11 can push the stamped parts out of the discharge trough 3. A connecting spring 111 is connected between the lower part of the three ejecting rods 11 and the bottom of the electric rotating disk 2. A fixed disk 112 is fixedly connected to the middle part of the inner side of the fixed cylinder 1 along the circumferential direction. A trapezoidal block 113 is fixedly connected to the right front side of the top of the fixed disk 112. The trapezoidal block 113 corresponds to the ejecting rod 11. When the ejecting rod 11 rotates and contacts the trapezoidal block 113, the trapezoidal block 113 can drive the ejecting rod 11 to move upward.

[0032] See also Figure 4-Figure 6 As shown, the mixing assembly includes a connector 17, a cylinder 171, a stepper motor 172, a screw conveying shaft 1721 and a scraper 173. The connector 17 is fixedly connected to the middle of the top of the scraping cover 13, and the connector 17 is fixedly connected to the discharge end of the nozzle 7. The middle part of the connector 17 is rotatably connected to the cylinder 171, and the inner side of the cylinder 171 is fixedly connected to the screw conveying shaft 1721. When the screw conveying shaft 1721 reverses, the screw conveying shaft 1721 can drive the metal powder to move downward for mixed transportation. The scraper 173 is fixedly connected to the lower part of the outer side surface of the cylinder 171, and the scraper 173 contacts the top of the electric rotating disk 2. When the scraper 173 reverses, the scraper 173 can scrape the metal material on the top of the electric rotating disk 2. A stepper motor 172 is installed on the upper right side of the scraping cover 13, and the output shaft of the stepper motor 172 and the outer side surface of the cylinder 171 are driven by a synchronous belt assembly.

[0033] First, pour an appropriate amount of metal powder into the collecting frame 6, start the nozzle 7, and the nozzle 7 discharges the metal powder in the collecting frame 6 into the cylinder 171 through the connecting head 17. The metal powder in the cylinder 171 contacts the spiral conveying shaft 1721, and the stepper motor 172 is started to reverse. The reversal of the stepper motor 172 drives the cylinder 171 to reverse through the synchronous belt assembly. The reversal of the cylinder 171 drives the spiral conveying shaft 1721 and the scraper 173 to reverse. The reversal of the spiral conveying shaft 1721 mixes the metal powder evenly to avoid segregation during the pressing process. Segregation may cause uneven distribution of pressing pressure and affect the density and performance of the product. The evenly mixed metal powder is conveyed to the discharge trough 3 below by the spiral conveying shaft 1721, and the ejector rod 11 pushes the metal powder The scraper 13 is used to block the metal powder. During the conveying process, some metal powder will fall on the top of the electric rotating disk 2. The scraper hood 13 can prevent the metal powder from falling to the surrounding and affecting the environment. When the metal powder is loaded in the left discharge chute 3, the nozzle 7 is closed, and the metal powder stops being discharged into the cylinder 171. The drive motor 15 is started to reverse. The drive motor 15 reverses and drives the screw rod 16 to reverse through the synchronous belt assembly. The screw rod 16 reverses and drives the sliding frame 14 to move to the left. The sliding frame 14 moves to the left and drives the scraper hood 13 to move to the left. The scraper hood 13 moves to the left to scrape off the excess metal powder on the electric rotating disk 2. The scraper hood 13 drives the excess metal powder to move to the left. When the scraper hood 13 moves to the left to just above the receiving hopper 8, the drive motor 15 is turned off. At this time, the scraped metal The powder is above the receiving hopper 8, and the scraped metal powder falls into the receiving hopper 8. The discharge pipe 9 is started, and the discharge pipe 9 discharges the metal powder in the receiving hopper 8 back into the collection frame 6 for reuse. Then the drive motor 15 is started to rotate forward to drive the screw rod 16 to rotate forward. The screw rod 16 drives the scraper cover 13 to move to the right and reset through the sliding frame 14. Then the electric rotating disk 2 is started to rotate forward 120 degrees. The electric rotating disk 2 rotates forward to drive the ejecting rod 11 to rotate forward. At the same time, the electric rotating disk 2 rotates forward to drive the metal powder to rotate forward 120 degrees through the discharge trough 3. The metal powder rotates forward 120 degrees and is directly below the electric punching block 5. The electric punching block 5 is started to move downward. The electric punching block 5 moves downward and contacts the metal powder in the discharge trough 3 directly below. The electric punching block 5 moves downward to contact the discharge trough The metal powder in 3 is stamped and formed, so that the metal powder is stamped into parts, and the forward rotation of the electric rotating disk 2 also causes the next discharge trough 3 to rotate forward to the bottom of the scraper cover 13. According to the above operation, the metal powder can be evenly mixed again and discharged into the discharge trough 3. The scraper cover 13 can scrape off the excess metal material on the top of the electric rotating disk 2. In this way, the metal powder can be stamped and formed while the excess metal powder on the top of the electric rotating disk 2 can be scraped off without additional waiting time for cleaning, thereby improving the stamping efficiency. When the metal powder is stamped and formed, the electric punching block 5 is started to move upward and reset, and then the electric rotating disk 2 is started again to rotate forward 120 degrees. The electric rotating disk 2 drives the stamped parts to rotate forward 120 degrees through the discharge trough 3.The electric rotating disk 2 also drives the ejecting rod 11 to rotate forward 120 degrees. When the ejecting rod 11 corresponding to the component rotates forward and contacts the trapezoidal block 113, the trapezoidal block 113 drives the ejecting rod 11 to move upward, the connecting spring 111 is compressed, and the ejecting rod 11 moves upward to push the stamped component out of the discharge chute 3. The pushed-out component contacts the baffle 31, and then when the electric rotating disk 2 rotates forward 120 degrees again, the electric rotating disk 2 drives the component to rotate forward through the ejecting rod 11, and the baffle 31 blocks the component. Since the baffle 31 is inclined, the baffle 31 guides the component, so that the component falls from the electric rotating disk 2 for collection, and the electric rotating disk 2 also drives the ejecting rod 11 to rotate forward and disengage from the trapezoidal block 113. Due to the action of the connecting spring 111, the ejecting rod 11 moves downward and resets, and this is repeated, and the metal powder can be continuously stamped and formed. When all the metal powders are stamped and formed, the stepping motor 172 is turned off, and the screw conveying shaft 1721 and the scraper 173 stop rotating in reverse.

[0034] See also Figure 7 As shown, the stamping forming device for powder metallurgy also includes a cleaning component installed between the stepping motor 172 and the scraper cover 13, the cleaning component includes an annular brush 18, an outer ring gear 181, a fixed plate 182 and a spur gear 183, the lower portion of the outer side surface of the scraper cover 13 is fixedly connected with an annular brush 18 along the circumferential direction, the annular brush 18 is in contact with the top of the electric rotating disk 2, when the annular brush 18 rotates, the annular brush 18 can remove excess metal powder from the top of the electric rotating disk 2, the top of the annular brush 18 is fixedly connected with an outer ring gear 181 along the circumferential direction, the lower portion of the outer right side of the scraper cover 13 is fixedly connected with a fixed plate 182, the right side of the fixed plate 182 is rotatably connected with a spur gear 183, the spur gear 183 is meshed with the outer ring gear 181, and the shaft of the spur gear 183 is fixedly connected to the end of the output shaft of the stepper motor 172.

[0035] See also Figure 8 and Figure 9As shown, the powder metallurgy stamping forming device also includes a pushing assembly installed between the baffle 31 and the cylinder 171, the pushing assembly includes a material receiving frame 19, an elastic cloth 191, a belt assembly 192, a pushing rod 193 and a trigger assembly, a belt assembly 192 is horizontally installed in the middle of the baffle 31, the belt assembly 192 consists of two pulleys and a flat belt, wherein the two pulleys are rotatably connected to the baffle 31, and the flat belt is wound between the two pulleys, and the outer side surface of the flat belt of the belt assembly 192 is fixedly connected to the pushing rod 193, when the pushing rod 193 rotates, the pushing rod 193 can push the ejected parts off the electric rotary disk 2, and the right front side of the cylinder 171 is fixedly connected to the material receiving frame 19, and the material receiving frame 19 can collect the stamped parts, and the upper inner side of the material receiving frame 19 is connected to the rear side of the baffle 31. Elastic cloth 191, elastic cloth 191 can realize buffering of parts, and a trigger assembly is provided between belt assembly 192 and baffle 31. When the trigger assembly is in operation, the trigger assembly can drive belt assembly 192 to rotate; the trigger assembly includes a rotating shaft 194, a friction wheel 195, a rotating rod 196 and a mounting plate 197. The right side of the front side of the baffle 31 is fixedly connected to the mounting plate 197, and the left side of the mounting plate 197 is rotatably connected with the rotating shaft 194. The bottom end of the rotating shaft 194 is fixedly connected to the friction wheel 195, and the friction wheel 195 contacts the outer side surface of the electric rotating disk 2. The left side of the mounting plate 197 is rotatably connected to the rotating rod 196, and the rotating rod 196 is located on the right side of the rotating shaft 194. The lower part of the rotating rod 196 and the upper part of the rotating shaft 194 are connected by gear transmission, and the upper part of the rotating rod 196 and the shaft part on the right side of the belt assembly 192 are driven by a synchronous belt assembly.

[0036] When the stepper motor 172 is started, the stepper motor 172 reverses and drives the spur gear 183 to reverse, and the spur gear 183 reverses and drives the outer ring gear 181 to rotate forward, and the outer ring gear 181 rotates forward and drives the annular brush 18 to rotate forward, and then the scraper cover 13 moves to the left to scrape off the excess metal powder on the top of the electric rotating disk 2. The scraper cover 13 moves to the left and drives the annular brush 18 to move to the left. Since there may be a gap between the electric rotating disk 2 and the scraper cover 13, some metal powder is difficult to be scraped off by the scraper cover 13. The annular brush 18 moves to the left and rotates forward to remove the residual metal powder caused by the gap between the scraper cover 13 and the electric rotating disk 2, and the removed metal powder falls into the receiving hopper 8. When all the metal powder is stamped and formed, the stepper motor 172 is turned off, the stepper motor 172 stops driving the spur gear 183 to reverse, the spur gear 183 stops driving the outer ring gear 181 to rotate forward, and the outer ring gear 181 stops driving the annular brush 18 to rotate forward. In this way, the metal powder can be further removed, so that the excess metal powder can be removed more cleanly.

[0037] When the electric rotating disk 2 rotates forward, the electric rotating disk 2 drives the friction wheel 195 in the reverse direction, and the reverse rotation of the friction wheel 195 drives the rotating shaft 194 in the reverse direction. The reverse rotation of the rotating shaft 194 drives the rotating rod 196 in the forward direction through the gear transmission. The rotating rod 196 rotates forward through the synchronous belt assembly, which drives the belt assembly 192 in the forward direction. The forward rotation of the belt assembly 192 drives the push rod 193 in the forward direction. When the push rod 193 rotates forward and contacts the stamped parts, the push rod 193 rotates forward and pushes the stamped parts from the electric rotating disk 2 onto the elastic cloth 191. The elastic cloth 191 cushions the parts, and the cushioned parts slide into the receiving frame 19 for collection. When the electric rotating disk 2 stops rotating forward, the electric rotating disk 2 stops driving the friction wheel 195 in the reverse direction, and the friction wheel 195 stops driving the rotating shaft 194 in the reverse direction. The belt assembly 192 also stops driving the push rod 193 in the forward direction. When all the metal powder is stamped, the parts in the receiving frame 19 are removed for subsequent processing. In this way, it is possible to prevent parts from remaining on the electric rotating disk 2 and being difficult to be pushed down by the baffle 31 for collection, thereby ensuring that the parts are collected smoothly.

[0038] See also Figure 10 As shown, the powder metallurgy stamping forming device also includes a mesh plate 20, which is fixed to the right side of the bottom of the fixed seat 10. The mesh plate 20 is located directly above the receiving hopper 8, and the mesh plate 20 can block foreign debris.

[0039] When the scraped metal powder moves to above the receiving hopper 8, the metal powder falls downward and contacts the mesh plate 20. The metal powder passes through the mesh plate 20 and falls into the receiving hopper 8. The mesh plate 20 can block foreign debris, thus preventing foreign debris from falling into the receiving hopper 8 and being sucked into the collecting frame 6 by the discharge pipe 9 and mixed with the metal powder, thereby ensuring the stamping quality of the metal powder.

[0040] Finally, it is necessary to point out that the above content is only used to help understand the technical solution of the present invention and cannot be understood as limiting the scope of protection of the present invention; non-essential improvements and adjustments made by technical personnel in this field based on the above content of the present invention are all within the scope of protection required by the present invention.

Claims

1. A stamping forming device for powder metallurgy, comprising a fixed cylinder (1) and an electric rotating disk (2) mounted on a cylinder (171), the electric rotating disk (2) having discharge troughs (3) uniformly spaced in the circumferential direction, a baffle (31) fixedly connected to the outer side of the cylinder (171) and in contact with the top of the electric rotating disk (2), the baffle (31) being arranged at an angle, an L-shaped plate (4) fixedly connected to the cylinder (171), an electric stamping block (5) corresponding to the discharge trough (3) fixedly connected to the L-shaped plate (4), a spraying assembly provided on the cylinder (171) for spraying metal powder into the discharge trough (3), characterized in that: The invention also includes a fixed seat (10), a material ejection assembly, a guide plate (12), a scraping cover (13), a sliding frame (14), a driving motor (15), a screw (16) and a mixing assembly. The material ejection assembly is installed between the electric rotating disk (2) and the cylinder (171) and is used to eject the stamped parts. The outer side of the cylinder (171) is fixedly connected to the fixed seat (10). The inner side of the fixed seat (10) is symmetrically slidably connected to the sliding frame (14). The ends of the sliding frame (14) are fixedly connected to the scraping cover (13) in contact with the top of the electric rotating disk (2). The inner side of the fixed seat (10) is fixedly connected to the guide plate (12) in contact with the scraping cover (13). The fixed seat (10) is rotatably connected to a screw (16) threadedly connected to one of the sliding frames (14). 16), a driving motor (15) is installed on the fixed seat (10), and the output shaft of the driving motor (15) and the screw rod (16) are driven by a synchronous belt assembly. When the electric punching block (5) starts to punch and form the metal powder in the discharge trough (3), the driving motor (15) drives the scraping cover (13) to move to the left through the screw rod (16) and the sliding frame (14), so that the scraping cover (13) can scrape off the excess metal powder on the electric rotating disk (2) while the electric punching block (5) punches the metal powder. The mixing component is installed on the scraping cover (13) and is used to transport and mix the metal powder. The spraying component is installed between the cylinder (171) and the fixed seat (10) and is used to spray the metal powder into the mixing component.

2. A powder metallurgy stamping forming device according to claim 1, characterized in that: The spray assembly includes a collecting frame (6) fixedly connected to the outer side of the cylinder (171), the collecting frame (6) is fixedly connected to the fixed seat (10), a nozzle (7) is installed on the collecting frame (6), the discharge end of the nozzle (7) is connected to the mixing assembly to discharge the metal powder into the mixing assembly, the nozzle (7) is a hose, and a receiving hopper (8) is fixedly connected to the fixed seat (10) for collecting and guiding the cleared metal powder, and a discharge pipe (9) is connected between the receiving hopper (8) and the collecting frame (6).

3. A powder metallurgy stamping forming device according to claim 2, characterized in that: The ejector assembly includes ejector rods (11) slidably connected to the circumference of the electric rotating disk (2) at uniform intervals, the top of the ejector rods (11) is located inside the discharge trough (3) to push the stamped parts out of the discharge trough (3), a connecting spring (111) is connected between the ejector rods (11) and the electric rotating disk (2), a fixed disk (112) is fixedly connected to the inner side of the fixed cylinder (1) along the circumference, and a trapezoidal block (113) corresponding to the ejector rod (11) is fixedly connected to the top of the fixed disk (112) to drive the ejector rod (11) to move upward.

4. The powder metallurgy stamping forming device according to claim 3, characterized in that: The mixing assembly includes a connector (17) fixedly connected to the top of the scraping cover (13), the connector (17) is fixedly connected to the discharge end of the nozzle (7), a barrel (171) is rotatably connected to the connector (17), a spiral conveying shaft (1721) is fixedly connected to the inner side of the barrel (171) to drive the metal powder to move downward for mixing and conveying, a scraper (173) is fixedly connected to the outer side of the barrel (171) and contacts the top of the electric rotating disk (2) for scraping the metal material on the top of the electric rotating disk (2), a stepping motor (172) is installed on the scraping cover (13), and the output shaft of the stepping motor (172) and the barrel (171) are driven by a synchronous belt assembly.

5. The powder metallurgy stamping forming device according to claim 4, characterized in that: The powder metallurgy stamping forming device also includes a cleaning component, which includes an annular brush (18) fixed to the circumferential outer side surface of the scraper cover (13), the annular brush (18) contacts the top of the electric rotating disk (2), and is used to remove excess metal powder on the top of the electric rotating disk (2), the top of the annular brush (18) is fixed to an outer ring gear (181) along the circumferential direction, the scraper cover (13) is fixed to a fixed plate (182), the fixed plate (182) is rotatably connected to a spur gear (183) meshing with the outer ring gear (181), and the shaft of the spur gear (183) is fixedly connected to the end of the output shaft of the stepping motor (172).

6. The powder metallurgy stamping forming device according to claim 5, characterized in that: The powder metallurgy stamping forming device also includes a pusher assembly, which includes a belt assembly (192) installed laterally on the baffle (31), a pusher rod (193) fixedly connected to the outer side of the belt assembly (192) for pushing the ejected parts off the electric rotating disk (2), a receiving frame (19) fixedly connected to the outer side of the cylinder (171) for collecting the stamped parts, an elastic cloth (191) connected between the inner side of the receiving frame (19) and the baffle (31) for buffering the parts, and a trigger assembly provided between the belt assembly (192) and the baffle (31) for driving the belt assembly (192) to rotate.

7. The powder metallurgy stamping forming device according to claim 6, characterized in that: The trigger assembly includes a mounting plate (197) fixedly connected to the baffle (31), a rotating shaft (194) rotatably connected to the mounting plate (197), a friction wheel (195) in contact with the outer side of the electric rotating disk (2) fixedly connected to the bottom end of the rotating shaft (194), a rotating rod (196) located on the right side of the rotating shaft (194) rotatably connected to the mounting plate (197), the rotating rod (196) and the rotating shaft (194) are connected by a gear transmission, and the rotating rod (196) and the shaft portion of the belt assembly (192) are driven by a synchronous belt assembly.

8. The powder metallurgy stamping forming device according to claim 7, characterized in that: The powder metallurgy stamping forming device further comprises a mesh plate (20) fixed to the inner bottom of the fixing seat (10). The mesh plate (20) is located directly above the receiving hopper (8) and is used to block foreign debris.

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