A metal powder processing spread forming device

Abstract

The application belongs to the technical field of metal powder processing forming, and particularly relates to a metal powder processing paving and forming device, which comprises a rack, a hydraulic cylinder, a hydraulic rod, a workbench, a compacting die groove, a paving device and a cylinder assembly. The rack is used for mounting and supporting various functional components. The hydraulic cylinder is mounted on the top of the rack. The hydraulic rod is arranged on the output end of the hydraulic cylinder and is used for downward stamping. The workbench is arranged on the rack and is located below the hydraulic rod. The compacting die groove is arranged on the workbench and is correspondingly arranged with the end of the hydraulic rod. The hydraulic rod is used for stamping towards the compacting die groove, so that the metal powder in the compacting die groove is formed. The paving device is arranged on the workbench and is located opposite to the compacting die groove. The device can stably output, bidirectionally scrape and roll and pave the metal powder before pressing, so that the powder forms a uniform, flat and consistent powder layer in the compacting die groove, thereby improving the compacting forming quality and consistency.

Description

Technical Field

[0001] This invention belongs to the field of metal powder processing and forming technology, and specifically relates to a spreading and forming device for metal powder processing. Background Technology

[0002] Metal powder pressing is a crucial process in powder metallurgy, metal billet preparation, and subsequent sintering. It typically involves filling a pre-defined amount of metal powder into a die cavity, then applying pressure to the powder using a press head or hydraulic pressing structure to form a compact with a specific shape and density. The distribution of the powder within the die cavity before pressing directly affects the density uniformity, edge integrity, and subsequent sintering deformation of the compact.

[0003] In existing processing methods, metal powder is often fed into the mold cavity manually, using a simple hopper, or by scraping with a single scraper. While these methods are simple in structure, they are prone to problems such as localized powder accumulation, underfilling at the edges, and inconsistent material layer thickness during continuous operation. This is especially true for metal powders with poor flowability or those that are prone to absorbing moisture and clumping, which may also cause blockages, agglomeration, or unstable instantaneous discharge during the feeding process. If the powder is not fully spread and compacted before pressing, the hydraulic rod will cause localized density deviations in the pressed blank, which can lead to cracks, missing corners, or demolding damage in severe cases, affecting product quality and batch processing consistency.

[0004] Furthermore, unidirectional scraping structures can typically only smooth the powder surface in one direction. When the paving mechanism returns, it cannot effectively participate in secondary powder leveling, easily resulting in excessive idle travel and a slower production cycle. Simultaneously, although the powder surface tends to be flat after single scraping, the density inside the die groove may still be insufficient, leading to significant secondary powder flow during subsequent pressing, which is detrimental to forming a stable compact shape. Therefore, there is an urgent need for a metal powder paving and forming device that can achieve stable powder output, vibration-induced clogging, bidirectional scraping, and rolling pressing to improve the forming quality and processing efficiency of metal powder compacts. Summary of the Invention

[0005] The purpose of this invention is to provide a spreading and forming device for metal powder processing, which can stably output, bidirectionally scrape and roll spread metal powder before pressing, so that the powder forms a uniform, flat and consistent powder layer in the pressing mold groove, thereby improving the quality and consistency of pressing.

[0006] The specific technical solution adopted by this invention is as follows: A metal powder paving and forming device includes a frame, a hydraulic cylinder, a hydraulic rod, a worktable, a blanking mold groove, a paving device, and a cylinder assembly. The frame is used to install and support the functional components. The hydraulic cylinder is mounted on the top of the frame. The hydraulic rod is located at the output end of the hydraulic cylinder and is used for downward pressing. The worktable is located on the frame and below the hydraulic rod. The blanking mold groove is formed on the worktable and corresponds to the end of the hydraulic rod. The hydraulic rod presses towards the blanking mold groove, forming the metal powder inside the blanking mold groove. The paving device is... The cylinder assembly is positioned on the worktable relative to the pressing mold groove, and is used to output metal powder into the pressing mold groove and spread the metal powder. The cylinder assembly is set on the worktable, and its piston rod end is fixedly connected to the spreading device, which is used to push the spreading device to reciprocate along the surface of the worktable. The spreading device includes two oppositely arranged side plates, a fixed plate connected between the two side plates, a spreading roller set below the fixed plate, a powder output assembly set above the fixed plate, a first scraper assembly set on one side of the fixed plate, and a second scraper assembly set on the other side of the fixed plate.

[0007] In a preferred embodiment, a vibrating plate is provided between the fixed plate and the second scraper assembly. Both ends of the vibrating plate opposite to each other are provided with fixing ears, and the fixing ears pass through the side plate. The side plate has an elongated hole for the fixing ears to pass through. The vibrating plate has a gap for vibrating within the elongated hole. A vibration motor is provided on the side of the vibrating plate opposite to the first scraper assembly.

[0008] In a preferred embodiment, the flattening roller includes rollers connected between two side plates and a flexible belt wound around the rollers. At least two of the rollers have pulleys mounted on their common ends, and a plurality of pulleys are connected by a drive belt. The surface of the flattening roller is in close contact with the upper surface of the blanking mold groove.

[0009] In a preferred embodiment, the powder output assembly includes a stepper motor mounted on a fixed plate, a connecting block mounted above the stepper motor, a material cylinder fixed above the connecting block, and a feed hopper mounted above the material cylinder.

[0010] In a preferred embodiment, a spiral feed rod is installed inside the material cylinder. The lower end of the spiral feed rod passes through a connecting block and is fixedly connected to the output shaft of a stepper motor. A discharge pipe is installed on one side of the material cylinder. The bottom end of the discharge pipe is fixed to a vibrating plate. A discharge hopper is installed on the bottom surface of the vibrating plate at a position corresponding to the discharge pipe. The lower opening of the discharge hopper travels in a direction corresponding to the pressing die groove.

[0011] In a preferred embodiment, the first scraper assembly includes a first connecting plate fixed to the outside of two side plates, a first fixed shaft installed between the first connecting plates, a mounting seat fixed along the axial direction of the first fixed shaft, a center holding plate installed on the mounting seat, and a first scraper installed on the center holding plate, the cutting edge of the first scraper facing the direction of the blank pressing mold groove, wherein pressure plates are installed on both the upper and lower surfaces of the first scraper, and the pressure plates are fixedly connected to the center holding plate and the mounting seat by bolts, and clamp and fix the first scraper.

[0012] In a preferred embodiment, the second scraper assembly includes a second connecting plate fixed to the outside of the two side plates, a second fixed shaft is installed between the second connecting plates, a scraper assembly with the same structure as the first fixed shaft is installed on the second fixed shaft, and a third shaft cylinder is fixed on the second connecting plate at the same horizontal position.

[0013] In a preferred embodiment, an extension arm is fixedly connected to the second fixed shaft, and an extension rod is rotatably sleeved on the third shaft cylinder. The end of the extension rod extends to a fixed lug and is fastened by a nut. A spring is sleeved on the body of the extension rod.

[0014] In a preferred embodiment, the extension arm is tilted toward the extension rod and fitted onto the extension rod, with one end of the spring abutting against the extension arm and the other end abutting against the fixing lug.

[0015] The technical effects achieved by this invention are as follows: In this invention, a stable pressing and forming base structure is formed by the frame, hydraulic cylinder, hydraulic rod, worktable and pressing die groove. A spreading device driven by a cylinder assembly is set on the worktable, so that the metal powder can automatically complete the feeding, scraping, spreading and trimming before pressing, reducing the powder filling error caused by manual material spreading, and ensuring that the filling amount and distribution state of powder in the die groove are more stable before each pressing.

[0016] In this invention, the discharge pipe and discharge hopper are set on a vibrating plate. The vibrating plate forms a vibratory fit with the elongated hole through the fixed lugs and is driven by a vibrating motor to keep the powder in a loose state during the discharge process. This reduces the agglomeration and pipe blockage caused by the fine particle size, moisture absorption, or static storage of the metal powder, and improves the continuity and stability of the discharge.

[0017] In this invention, the flexible belt of the spreading roller is flush with the upper surface of the pressing die groove. When the spreading device moves, it can form rolling friction with the powder, which can not only spread out the locally accumulated powder, but also lightly compact and adjust the thickness of the powder layer, reducing the probability of powder splashing and edge accumulation. This results in the formation of a uniform, flat and consistent powder layer in the pressing die groove, improving the density and shape stability of the pressing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the assembly structure of the workbench, paving device and cylinder assembly in this invention; Figure 3 This is a schematic diagram of the separation structure of the paving device in this invention; Figure 4 This is a schematic diagram of the flattening roller belt structure in this invention; Figure 5 This is a schematic diagram of the powder output component in this invention; Figure 6 This is a schematic diagram of the separation structure of the powder output component in this invention; Figure 7 In this invention Figure 5 A magnified structural diagram showing the details at point A; Figure 8 This is a schematic diagram of the separation structure of the first scraper assembly in this invention; Figure 9 This is a schematic diagram of the structure of the second scraper assembly in this invention; Figure 10 This is a schematic diagram showing the separation of the second scraper assembly from another perspective in this invention.

[0019] The attached diagram lists the components represented by each number as follows: 1. Frame; 2. Hydraulic cylinder; 3. Hydraulic rod; 4. Worktable; 5. Pressing die groove; 6. Paving device; 601. Side plate; 602. Fixing plate; 603. Flattening roller; 6031. Roller; 6032. Flexible belt; 6033. Pulley; 6034. Drive belt; 604. Powder output assembly; 6041. Stepper motor; 6042. Connecting block; 6043. Material cylinder; 6044. Feed hopper; 6045. Screw feeder; 6046. Discharge pipe; 6047. Discharge hopper; 605. First scraper assembly; 6051. First connecting plate; 6052. First fixed shaft; 6053. Mounting base; 6054. Center holding plate; 6055. First scraper; 6056. Pressure plate; 606. Vibrating plate; 607. Fixing lug; 608. Elongated hole; 609. Vibration motor; 610. Second scraper assembly; 6101. Second connecting plate; 6102. Second fixed shaft; 6103. Third shaft cylinder; 6104. Extension arm; 6105. Extension rod; 6106. Spring; 7. Cylinder assembly. Detailed Implementation

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0023] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0024] Please see the appendix Figures 1-10 As shown, the present invention provides a paving and forming device for metal powder processing, including a frame 1, a hydraulic cylinder 2, a hydraulic rod 3, a worktable 4, a pressing mold groove 5, a paving device 6, and a cylinder assembly 7. The frame 1 is used to install and support the functional components. The hydraulic cylinder 2 is installed on the top of the frame 1. The hydraulic rod 3 is located at the output end of the hydraulic cylinder 2 and is used for downward pressing. The worktable 4 is located on the frame 1 and below the hydraulic rod 3. The pressing mold groove 5 is opened on the worktable 4 and is correspondingly arranged with the end of the hydraulic rod 3. The hydraulic rod 3 presses towards the pressing mold groove 5 to form the metal powder inside the pressing mold groove 5. The paving device 6 is located on the worktable 4 at a position relative to the pressing mold groove 5 and is used to output metal powder into the pressing mold groove 5 and spread the metal powder. The cylinder assembly 7 is located on the worktable 4, and the end of its piston rod is fixedly connected to the paving device 6 and is used to push the paving device 6 to reciprocate along the surface of the worktable 4.

[0025] According to the above structure, before the metal powder is pressed, the cylinder assembly 7 drives the spreading device 6 to move along the surface of the worktable 4, so that the spreading device 6 completes the output, leveling and spreading of powder when passing through the pressing mold groove 5. After a stable powder layer is formed in the pressing mold groove 5, the hydraulic cylinder 2 drives the hydraulic rod 3 to move downward. The end of the hydraulic rod 3 cooperates with the pressing mold groove 5 to apply uniform and stable pressure to the powder placed in the pressing mold groove 5. After pressing is completed, the ejector assembly ejects the formed blank to complete the demolding action.

[0026] The ejection assembly consists of an ejection rod and a guide sleeve. This structure can be assembled from any mechanical structure in the art that can perform an ejection action. The specific connection method and driving principle will not be described in detail here.

[0027] Please see the appendix Figure 3 As shown, the paving device 6 includes two opposing side plates 601, a fixed plate 602 connected between the two side plates 601, a paving roller 603 disposed below the fixed plate 602, a powder output assembly 604 disposed above the fixed plate 602, a first scraper assembly 605 disposed on one side of the fixed plate 602, and a second scraper assembly 610 disposed on the other side of the fixed plate 602. A vibrating plate 606 is disposed between the fixed plate 602 and the second scraper assembly 610. Both opposite ends of the vibrating plate 606 are provided with fixing ears 607, and the fixing ears 607 pass through the side plates 601. The side plates 601 have elongated holes 608 for the fixing ears 607 to pass through. The vibrating plate 606 has a gap for vibrating within the elongated holes 608. A vibrating motor 609 is disposed on the side of the vibrating plate 606 opposite to the first scraper assembly 605.

[0028] Specifically, the vibrating plate 606 restricts its installation position by cooperating with the fixing ear 607 and the elongated hole 608, while maintaining its vibration gap. When the vibration motor 609 is started, the vibrating plate 606 can perform high-frequency micro-amplitude vibration within the range limited by the elongated hole 608, causing the discharge structure installed on the vibrating plate 606 to vibrate accordingly, thereby loosening the metal powder passing through the discharge structure and reducing powder agglomeration and blockage.

[0029] Please see the appendix Figure 4 As shown, the flattening roller 603 includes rollers 6031 connected between two side plates 601 and a flexible belt 6032 wound around the rollers 6031. At least two rollers 6031 have pulleys 6033 installed at their common ends. Multiple pulleys 6033 are connected by a transmission belt 6034. The surface of the flattening roller 603 is in close contact with the upper surface of the pressing die groove 5.

[0030] Specifically, when the cylinder assembly 7 pushes the paving device 6 to move, the flexible belt 6032 contacts the metal powder at the pressing mold groove 5 and forms rolling friction, so that the accumulated powder is gradually spread out by the flexible belt 6032 and pressed into the pressing mold groove 5. Compared with the rigid scraper, the flexible belt 6032 has a softer contact characteristic, which can reduce the disturbance to the powder layer surface while spreading the powder, and avoid powder splashing or local accumulation at the edge of the mold groove.

[0031] Please see the appendix Figures 5-7As shown, the powder output assembly 604 includes a stepper motor 6041 mounted on a fixed plate 602. A connecting block 6042 is mounted above the stepper motor 6041. A material cylinder 6043 is fixed above the connecting block 6042. A feeding bin 6044 is mounted above the material cylinder 6043. A spiral feed rod 6045 is installed inside the material cylinder 6043. The lower end of the spiral feed rod 6045 passes through the connecting block 6042 and is fixedly connected to the output shaft of the stepper motor 6041. A discharge pipe 6046 is installed on one side of the material cylinder 6043. The bottom end of the discharge pipe 6046 is fixed to a vibrating plate 606. A discharge hopper 6047 is installed on the bottom surface of the vibrating plate 606 corresponding to the position of the discharge pipe 6046. The lower opening of the discharge hopper 6047 has a travel direction corresponding to the pressing die groove 5.

[0032] Specifically, the metal powder first enters the material cylinder 6043 from the feed hopper 6044. The stepper motor 6041 drives the spiral feed rod 6045 to rotate. The spiral feed rod 6045 continuously pushes the powder in the material cylinder 6043 to the discharge pipe 6046, and guides it above the pressing die groove 5 through the discharge hopper 6047. Since the stepper motor 6041 can rotate according to the preset pulse, the number of rotations of the spiral feed rod 6045 and the feeding time can be controlled according to the amount of powder required by the pressing die groove 5, thereby achieving a relatively stable quantitative powder output.

[0033] More specifically, the bottom end of the discharge pipe 6046 is fixed on the vibrating plate 606, and the discharge hopper 6047 is installed on the bottom surface of the vibrating plate 606. When the vibration motor 609 is started, the vibrating plate 606 drives the discharge hopper 6047 to vibrate synchronously, so that the powder remains loose in the process of entering the discharge hopper 6047 from the discharge pipe 6046 and falling into the pressing mold groove 5, avoiding bridging, clumping or blockage due to the powder being left to stand for a long time, and ensuring the continuity and stability of powder output.

[0034] Please see the appendix Figure 8 As shown, the first scraper assembly 605 includes a first connecting plate 6051 fixed to the outside of two side plates 601. A first fixed shaft 6052 is installed between the first connecting plates 6051. A mounting base 6053 is fixed on the first fixed shaft 6052 along its axial direction. A middle holding plate 6054 is installed on the mounting base 6053. A first scraper 6055 is installed on the middle holding plate 6054. The cutting edge of the first scraper 6055 faces the direction of the blank pressing mold groove 5. Pressure plates 6056 are installed on both the upper and lower surfaces of the first scraper 6055. The pressure plates 6056 are fixedly connected to the middle holding plate 6054 and the mounting base 6053 by bolts, and clamp and fix the first scraper 6055.

[0035] Specifically, the first scraper 6055 is clamped and installed by the central holding plate 6054, the mounting base 6053 and the pressure plate 6056. After the first scraper 6055 is worn, it can be replaced by disassembling the pressure plate 6056, which reduces the difficulty of maintenance. Its cutting edge faces the surface of the pressing mold groove 5, so that when the paving device 6 moves, it can pre-scrape or end trim the excess powder near the pressing mold groove 5.

[0036] Please see the appendix Figures 9-10 As shown, the second scraper assembly 610 includes a second connecting plate 6101 fixed to the outside of the two side plates 601, a second fixed shaft 6102 installed between the second connecting plates 6101, a scraper assembly with the same structure as the first fixed shaft 6052 installed on the second fixed shaft 6102, and a third shaft cylinder 6103 fixed on the second connecting plate 6101 at the same horizontal position.

[0037] Please refer to the appendix again. Figure 10 As shown, an extension arm 6104 is fixedly connected to the second fixed shaft 6102, and an extension rod 6105 is rotatably sleeved on the third shaft cylinder 6103. The end of the extension rod 6105 extends to the fixing ear 607 and is fastened by a nut. A spring 6106 is sleeved on the body of the extension rod 6105. The extension arm 6104 is inclined toward the extension rod 6105 and sleeved on the extension rod 6105. One end of the spring 6106 abuts against the extension arm 6104, and the other end abuts against the fixing ear 607.

[0038] Specifically, when the vibration motor 609 is started, the vibration generated by the vibration plate 606 can be transmitted to the second scraper assembly 610 through the fixing ear 607, the extension rod 6105 and the spring 6106, so that the second scraper assembly 610 has a slight floating or elastic pressing effect during operation, thereby maintaining appropriate scraping pressure and scraper angle, avoiding the second scraper assembly 610 from scratching the surface of the worktable 4 due to rigid contact, and also avoiding insufficient contact pressure leading to powder residue.

[0039] The working principle of this invention is as follows: First, the metal powder to be pressed is added into the feed hopper 6044. The piston rod of the cylinder assembly 7 extends and pushes the paving device 6 to move along the surface of the workbench 4 toward the pressing mold groove 5. During the forward movement of the paving device 6, the first scraper assembly 605 first passes through the area where the pressing mold groove 5 is located, and pre-scrapes the residual powder on the surface of the workbench 4 and the edge of the pressing mold groove 5, so that the area around the pressing mold groove 5 remains relatively flat. Subsequently, the stepper motor 6041 starts and drives the spiral feed rod 6045 to rotate. The metal powder in the cylinder 6043 is pushed by the spiral feed rod 6045 through the discharge pipe 6046 into the discharge hopper 6047, and falls from the discharge hopper 6047 into the pressing die groove 5. At the same time, the vibration motor 609 drives the vibrating plate 606 and the discharge hopper 6047 to vibrate synchronously, so that the material falling process remains continuous and stable, reducing powder blockage. When the paving device 6 continues to move forward, the second scraper assembly 610 passes over the surface of the pressing die groove 5 and cleans the surface. The powder falling into the pressing mold 5 is scraped flat for the first time, so that the powder is initially evenly distributed in the pressing mold 5. When the cylinder assembly 7 drives the spreading device 6 to move in the opposite direction, the second scraper assembly 610 contacts the surface of the pressing mold 5 again to scrape the powder layer for the second time. At the same time, the spreading roller 603 passes over the pressing mold 5, and the flexible belt 6032 makes rolling contact with the powder layer, spreading out the locally accumulated powder and lightly compacting it. Then the first scraper assembly 605 passes through the pressing mold 5 again to trim the surface of the powder layer. Finally, after a uniform, flat, and consistent powder layer is formed in the blanking mold groove 5, the hydraulic cylinder 2 drives the hydraulic rod 3 downward, so that the end of the hydraulic rod 3 engages with the blanking mold groove 5 and applies pressure to the powder. Under high pressure, the powder forms a blank. After pressing is completed, the hydraulic rod 3 moves upward to reset, and the subsequent ejection assembly ejects the formed blank, completing one metal powder spreading and blank forming operation.

[0040] Based on the above, this application combines step-by-step spiral feeding, vibration anti-blocking, double scraper bidirectional leveling, and flattening roller rolling pressing to ensure that the metal powder is filled into the pressing die groove 5 in a stable, uniform, and dense state before pressing, effectively avoiding pressing defects caused by uneven powder distribution and improving the quality and consistency of metal powder processing and forming.

[0041] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. A spreading and forming device for metal powder processing, characterized in that: include A frame (1) is used to install and support various functional components; Hydraulic cylinder (2), which is mounted on the top of the frame (1); Hydraulic rod (3), which is located at the output end of hydraulic cylinder (2) and is used for downward pressing; Workbench (4), which is mounted on frame (1) and located below hydraulic rod (3); The blanking mold groove (5) is opened on the workbench (4) and is correspondingly set to the end of the hydraulic rod (3). The hydraulic rod (3) presses towards the blanking mold groove (5) to form the metal powder inside the blanking mold groove (5). The paving device (6) is set on the workbench (4) at a position relative to the pressing mold groove (5) and is used to output metal powder into the pressing mold groove (5) and to pave the metal powder. The cylinder assembly (7) is mounted on the workbench (4) and its piston rod end is fixedly connected to the paving device (6) for pushing the paving device (6) to reciprocate along the surface of the workbench (4); The paving device (6) includes two opposing side plates (601), a fixed plate (602) connected between the two side plates (601), a paving roller (603) disposed below the fixed plate (602), a powder output assembly (604) disposed above the fixed plate (602), a first scraper assembly (605) disposed on one side of the fixed plate (602), and a second scraper assembly (610) disposed on the other side of the fixed plate (602).

2. The spreading and forming device for metal powder processing according to claim 1, characterized in that: A vibrating plate (606) is provided between the fixed plate (602) and the second scraper assembly (610). Both ends of the vibrating plate (606) opposite to each other are provided with fixing ears (607), and the fixing ears (607) pass through the side plate (601). The side plate (601) has an elongated hole (608) for the fixing ears (607) to pass through. The vibrating plate (606) has a gap for vibrating in the elongated hole (608). A vibrating motor (609) is provided on the side of the vibrating plate (606) opposite to the first scraper assembly (605).

3. The spreading and forming device for metal powder processing according to claim 1, characterized in that: The flattening roller (603) includes rollers (6031) connected between two side plates (601) and a flexible belt (6032) wound around the rollers (6031). At least two of the rollers (6031) have pulleys (6033) installed at their common ends. The multiple pulleys (6033) are connected by a drive belt (6034). The surface of the flattening roller (603) is in close contact with the upper surface of the blanking mold groove (5).

4. The spreading and forming device for metal powder processing according to claim 1, characterized in that: The powder output assembly (604) includes a stepper motor (6041) mounted on a fixed plate (602), a connecting block (6042) mounted above the stepper motor (6041), a material cylinder (6043) fixed above the connecting block (6042), and a feeding bin (6044) mounted above the material cylinder (6043).

5. The spreading and forming device for metal powder processing according to claim 4, characterized in that: The material cylinder (6043) is equipped with a spiral feed rod (6045). The lower end of the spiral feed rod (6045) passes through the connecting block (6042) and is fixedly connected to the output shaft of the stepper motor (6041). A discharge pipe (6046) is installed on one side of the material cylinder (6043). The bottom end of the discharge pipe (6046) is fixed on the vibrating plate (606). A discharge hopper (6047) is installed on the bottom surface of the vibrating plate (606) at the position corresponding to the discharge pipe (6046). The lower end opening of the discharge hopper (6047) travels in a direction corresponding to the pressing die groove (5).

6. The spreading and forming device for metal powder processing according to claim 2, characterized in that: The first scraper assembly (605) includes a first connecting plate (6051) fixed to the outside of two side plates (601), a first fixed shaft (6052) is installed between the first connecting plates (6051), a mounting seat (6053) is fixed on the first fixed shaft (6052) along its axial direction, a center holding plate (6054) is installed on the mounting seat (6053), and a first scraper (6055) is installed on the center holding plate (6054), with the cutting edge of the first scraper (6055) facing the direction of the blank pressing mold groove (5); The first scraper (6055) is equipped with pressure plates (6056) on both the upper and lower surfaces. The pressure plates (6056) are fixedly connected to the middle support plate (6054) and the mounting base (6053) by bolts, and clamp the first scraper (6055) in place.

7. The spreading and forming device for metal powder processing according to claim 6, characterized in that: The second scraper assembly (610) includes a second connecting plate (6101) fixed to the outside of two side plates (601), a second fixed shaft (6102) is installed between the second connecting plates (6101), a scraper assembly with the same structure as the first fixed shaft (6052) is installed on the second fixed shaft (6102), and a third shaft cylinder (6103) is fixed on the second connecting plate (6101) at the same horizontal position.

8. The spreading and forming device for metal powder processing according to claim 7, characterized in that: An extension arm (6104) is fixedly connected to the second fixed shaft (6102), and an extension rod (6105) is rotatably sleeved on the third shaft cylinder (6103). The end of the extension rod (6105) extends to the fixed ear (607) and is fastened by a nut. A spring (6106) is sleeved on the rod body of the extension rod (6105).

9. The spreading and forming device for metal powder processing according to claim 8, characterized in that: The extension arm (6104) is inclined toward the extension rod (6105) and is fitted onto the extension rod (6105). One end of the spring (6106) abuts against the extension arm (6104) and the other end abuts against the fixing lug (607).

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