A powder sintering apparatus and method with convenient material feeding

Abstract

The application discloses a powder sintering equipment and method convenient for discharging, relates to the technical field of powder sintering, and comprises a powder sintering processing box and a laser forming cylinder arranged at one side of the bottom of the powder sintering processing box; further comprises a hollow powder conveying box, a driving unit, a pair of mixing assemblies, a grinding assembly, a linkage unit, a discharging unit, a pair of trigger blocks and a compacting unit; the hollow powder conveying box is arranged in the powder sintering processing box; a discharging port for injecting metal powder into the powder conveying box is formed in the top of the powder sintering processing box. The synchronous processing of fine grinding and mixing of various metal powders is realized, the grinding and mixing are alternating, and timely vibration treatment is carried out along with the discharging process of the metal powder, so that the quality of the metal powder forming processing is improved, the continuity and forming efficiency of the metal powder discharging processing are met.

Description

A convenient powder sintering equipment and method Technical Field

[0001] This invention relates to the field of powder sintering technology, and in particular to a powder sintering equipment and method that facilitates material feeding. Background Technology

[0002] With the maturation and application of the technology, it has been found that metal powder sintering equipment can be used as a new generation of low-carbon, rapid manufacturing equipment. This technology has already been adopted in multiple industries as a next-generation production and manufacturing tool. Metal powder sintering refers to the use of infrared lasers to instantly heat various metal powders to a molten state, thus shaping them into form.

[0003] It was found that before metal powder is sintered and formed by infrared laser, various metal raw materials need to be coarsely ground, finely ground, and mixed and stirred in advance. Because multiple processing steps are involved before metal powder is formed, it is impossible to quickly match the continuity of metal powder feeding and forming, thus delaying the efficiency of metal powder feeding and sintering. At the same time, the metal powder that is fed into the forming cylinder (metal powder forming requires laser forming in the forming cylinder) is loose and there are gaps between the particles. If the density standard between the metal powder particles does not meet the requirements, it will affect the quality of metal powder forming. Summary of the Invention

[0004] Therefore, it is necessary to address the current issue that the multiple processing steps required before metal powder forming prevent the continuous and rapid production of metal powder, thus delaying the efficiency of metal powder feeding and sintering. Furthermore, the metal powder accumulated in the forming cylinder (where laser sintering is performed) is loose and has gaps between particles. If the density between the metal powder particles does not meet the required standard, it will affect the quality of the metal powder forming. Therefore, it is necessary to provide a convenient powder sintering equipment and method.

[0005] A powder sintering device for convenient material feeding includes a powder sintering processing box and a laser forming cylinder disposed on one side of the bottom of the powder sintering processing box; it also includes:

[0006] A hollow powder conveying box is disposed inside the powder sintering processing box; the top of the powder sintering processing box has a feeding port for injecting metal powder into the powder conveying box; a drive unit is disposed between the powder sintering processing box and the powder conveying box; the drive unit is used to drive the powder conveying box to perform linear reciprocating motion towards the laser forming cylinder.

[0007] A pair of mixing components are rotatably connected inside the powder conveying box; the mixing components are used to mix the metal powder injected into the powder conveying box; a grinding component is rotatably connected inside the powder conveying box and located between the pair of mixing components; the grinding component is used to grind the metal powder injected into the powder conveying box.

[0008] A linkage unit is disposed on the powder sintering processing box, a pair of mixing components and a grinding component; the linkage unit provides hybrid power and grinding power to the pair of mixing components and grinding components by means of the power of the linearly movable drive unit.

[0009] A feeding unit is disposed on the powder conveying box; the feeding unit is used to open or close the opening at the bottom of the powder conveying box;

[0010] A pair of trigger blocks are fixedly installed on both sides of the inner wall of the powder sintering processing box and arranged parallel to the feeding unit. When the powder conveying box moves towards the laser forming cylinder, and the feeding unit contacts the trigger blocks, the feeding unit opens the opening at the bottom of the powder conveying box, and the metal powder in the powder conveying box is fed into the laser forming cylinder. A clamping unit is provided on the powder conveying box. When the powder conveying box moves directly above the laser forming cylinder, the clamping unit extends into the laser forming cylinder and vibrates the metal powder in the laser forming cylinder to ensure its compactness.

[0011] Furthermore, the drive unit includes a linear bearing fixedly installed on one side of the powder conveying box, a slide rod slidably connected to the linear bearing, a threaded sleeve fixedly installed on the other side of the powder conveying box, a lead screw threadedly connected to the threaded sleeve, and a motor connected to one end of the lead screw via a reducer.

[0012] Furthermore, the slide bar is fixedly installed on the inner wall of the powder sintering processing box, the lead screw is rotatably connected to the inner wall of the powder sintering processing box, and the motor is fixedly installed on the outer wall of the powder sintering processing box.

[0013] Furthermore, each of the mixing components includes a shaft, two pairs of mixing plates fixedly mounted on the outer circumferential wall of the shaft, and perforations formed on each of the mixing plates.

[0014] Furthermore, the grinding assembly includes a first grinding roller and a second grinding roller; the first grinding roller and the second grinding roller are arranged vertically.

[0015] Furthermore, the linkage unit includes a rack fixedly installed on the inner wall of the powder sintering processing box, a first gear meshing with the rack, a first sprocket gear, and a chain.

[0016] A second sprocket gear connected to the first sprocket gear and a second gear meshing with the second sprocket gear;

[0017] The first sprocket gear and the first gear are respectively coaxially fixed to a pair of shafts, and the second sprocket gear and the second gear are respectively coaxially fixed to the first grinding roller and the second grinding roller.

[0018] Furthermore, the feeding unit includes a feeding drawer plate that movably passes through the right side of the powder conveying box, a trigger plate fixedly installed on one side of the feeding drawer plate and facing the right side of the powder conveying box, a pair of dampers fixedly installed at both ends of the side of the trigger plate, a retaining ring fixedly installed on the outer surface of each damper, a return spring fixedly installed on the side of each retaining ring, and a fixing block fixedly installed at one end of each damper; the end of the return spring facing away from the retaining ring is fixedly installed on the side of the trigger plate, and the pair of fixing blocks are fixedly installed on the front and rear sides of the powder conveying box.

[0019] Furthermore, when the powder conveying box moves towards the laser forming cylinder, and the trigger plate is in continuous contact with the trigger block, the feeding plate is pulled out laterally on the powder conveying box, and the metal powder in the powder conveying box is fed into the laser forming cylinder; or, when the trigger plate is not in contact with the trigger block, the feeding plate is blocked inside the powder conveying box.

[0020] Furthermore, the material clamping unit includes a fixed support fixedly installed on the left side of the powder conveying box, a buffer spring fixedly installed at the bottom of the fixed support, a vibration device fixedly installed at the bottom end of the buffer spring, an L-shaped vibrating plate fixedly installed at the vibration output end of the vibration device, a limiting groove formed at the bend of the L-shaped vibrating plate, a folded vibrating plate rotatably connected to the limiting groove via a rotating shaft, and a torsion spring disposed on the rotating shaft; the two ends of the torsion spring are in contact with the L-shaped vibrating plate and the folded vibrating plate, respectively; when the folded vibrating plate is located directly above the laser forming cylinder, the folded vibrating plate extends into the laser forming cylinder; or, when the folded vibrating plate is away from the side of the laser forming cylinder, the folded vibrating plate contacts the inner bottom wall of the powder sintering processing box.

[0021] A method for a powder sintering device with convenient material feeding, applied in the aforementioned powder sintering device, includes the following steps:

[0022] S1. After injecting the mixed metal powder into the powder conveying box through the feeding port, start the drive unit to control the powder conveying box to move towards the laser forming cylinder until it moves to the position directly above the laser forming cylinder.

[0023] S2. The linkage unit can synchronously drive a pair of mixing components and grinding components to rotate by means of the powder conveying box during the movement process. At this time, the metal powder pre-stored in the powder conveying box is stirred and ground.

[0024] S3. When the powder conveyor box moves to the position directly above the laser forming cylinder, the material feeding plate is in the open state under the action of the trigger block against the contact plate, that is, the metal powder in the powder conveyor box is fed into the laser forming cylinder.

[0025] S4. At the same time, when the folded vibrating plate, which is in a folded state on the L-shaped vibrating plate, moves to a position directly above the laser forming cylinder, it can extend into the laser forming cylinder under the action of the torsion spring tension. With the excitation force provided by the vibration device, the folded vibrating plate can vibrate the metal powder in the laser forming cylinder to increase the compactness of the metal powder before forming.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] 1. In this invention, by setting up a linkage unit, a mixing component and a grinding component, the linkage unit can use the moving powder conveying box to link the mixing component and the grinding component to perform simultaneous fine grinding and mixing of various metal powders. The grinding and mixing are alternating, which effectively improves the material quality of the metal powder before molding, further ensures the quality of metal powder molding and processing, and meets the requirements of continuity and molding efficiency of metal powder feeding and processing.

[0028] 2. In this invention, by setting up a feeding unit and a trigger block, a semi-automatic feeding control structure can realize the feeding and output of metal powder into the laser forming cylinder at a designated position, and the feeding of metal powder is timely.

[0029] 3. In this invention, by setting up a clamping unit, which has a foldable structure to adapt to the position of the laser forming cylinder, it performs targeted vibration output during the process of metal powder being fed into the laser forming cylinder, and performs vibration treatment on the metal powder in the stacked state to be formed in a timely manner, so as to increase the density between the metal powders and improve the quality of metal powder forming. This process has high synchronization and meets the efficiency and continuity of metal powder feeding and forming. Attached Figure Description

[0030] Figure 1 shows a side sectional view of the entire invention.

[0031] Figure 2 shows a top sectional view of the entire invention.

[0032] Figure 3 shows a schematic diagram of the drive unit in Figure 2.

[0033] Figure 4 shows a schematic diagram of the structure of Figure 2 without the powder sintering processing box.

[0034] Figure 5 shows a side view of Figure 4.

[0035] Figure 6 shows a partial schematic diagram of component 5 excluding the mixing component, grinding component, and linkage unit.

[0036] Figure 7 shows a partial schematic diagram of the feeding unit and trigger block in Figure 5.

[0037] Figure 8 shows a schematic diagram of the material clamping unit in Figure 4.

[0038] Explanation of main component symbols

[0039] 1. Powder sintering processing box; 2. Laser forming cylinder; 3. Powder conveying box; 4. Feed port; 5. Drive unit; 51. Linear bearing; 52. Slide rod; 53. Threaded sleeve; 54. Lead screw; 55. Motor; 6. Mixing assembly; 61. Shaft; 62. Mixing plate; 63. Perforation; 7. Grinding assembly; 71. First grinding roller; 72. Second grinding roller; 8. Linkage unit; 81. Rack; 82. First gear; 83. ... 84. Second sprocket gear; 85. Second gear; 9. Feeding unit; 91. Feeding drawer plate; 92. Trigger plate; 93. Damper; 94. Retaining ring; 95. Return spring; 96. Fixing block; 10. Trigger block; 11. Material clamping unit; 111. Fixing support; 112. Buffer spring; 113. Vibration device; 114. L-shaped vibrating plate; 115. Limiting groove; 116. Folding vibrating plate; 117. Torsion spring.

[0040] The above description of the main component symbols, together with the accompanying drawings and specific embodiments, provides a more detailed explanation of the present invention. Detailed Implementation

[0041] The present invention will now be described in detail with reference to the accompanying drawings.

[0042] Example 1

[0043] This embodiment provides a powder sintering device with convenient material feeding, including a powder sintering processing box 1 and a laser forming cylinder 2 disposed on one side of the bottom of the powder sintering processing box 1. The aforementioned powder sintering device with convenient material feeding includes a powder conveying box 3, a drive unit 5, a pair of mixing components 6, a grinding component 7, a linkage unit 8, a feeding unit 9, a pair of trigger blocks 10, and a clamping unit 11. The powder conveying box 3 is placed inside the powder sintering processing box 1 and has a hollow structure. The hollow structure of the powder conveying box 3 facilitates the injection and feeding of metal powder. The top of the powder sintering processing box 1 has a feeding port 4 for injecting metal powder into the powder conveying box 3. The feeding port 4 facilitates the injection of various metal powders requiring fine grinding and mixing into the powder conveying box 3.

[0044] Referring to Figures 3 to 5, the drive unit 5 is located between the powder sintering processing box 1 and the powder conveying box 3. The drive unit 5 is used to drive the powder conveying box 3 to perform linear reciprocating motion towards the laser forming cylinder 2. The drive unit 5 includes a linear bearing 51 fixedly installed on one side of the powder conveying box 3, a slide rod 52 slidably connected to the linear bearing 51, a threaded sleeve 53 fixedly installed on the other side of the powder conveying box 3, a lead screw 54 threadedly connected to the threaded sleeve 53, and a motor 55 connected to one end of the lead screw 54 through a reducer. The slide rod 52 is fixedly installed on the inner wall of the powder sintering processing box 1, the lead screw 54 is rotatably connected to the inner wall of the powder sintering processing box 1, and the motor 55 is fixedly installed on the outer wall of the powder sintering processing box 1.

[0045] In this embodiment, after various metal powder raw materials are injected into the powder conveying box 3, the motor 55 drives the lead screw 54 to rotate. With the cooperation of the linear bearing 51 and the slide bar 52 sliding linearly, the powder conveying box 3 can move linearly along the axial direction of the lead screw 54, that is, move to the position of the laser forming cylinder 2 to feed metal powder; move to the position of the feeding port 4 to replenish metal powder raw materials.

[0046] Referring to Figure 6, a pair of mixing components 6 are rotatably connected inside the powder conveying box 3. The mixing components 6 are used to mix the metal powder injected into the powder conveying box 3. Each mixing component 6 includes a shaft 61, two pairs of mixing plates 62 fixedly installed on the outer circumferential wall of the shaft 61, and a perforation 63 opened on each mixing plate 62. When the shaft 61 rotates, the mixing plates 62 can mix and stir the metal powder raw material injected into the powder conveying box 3, and the metal powder in the stirring process can be continuously flowed through the perforation 63. This process can further improve the mixing quality of the metal powder. The grinding assembly 7 is rotatably connected inside the powder conveying box 3 and is located between a pair of mixing assemblies 6. The grinding assembly 7 is used to grind the metal powder injected into the powder conveying box 3. The grinding assembly 7 includes a first grinding roller 71 and a second grinding roller 72. In this application, a grinding gap is reserved between the first grinding roller 71 and the second grinding roller 72, and a metal powder flow area is reserved between the bottom of the second grinding roller 72 and the inner bottom of the powder conveying box 3. When the first grinding roller 71 and the second grinding roller 72 rotate in opposite directions, the grinding gap between them can perform fine grinding on the metal powder mixed and flowing in the powder conveying box 3 to further improve the quality of metal powder forming and processing.

[0047] It is worth noting that, since the pair of shafts 61 rotate in the same direction, when the mixing plate 62 continuously mixes the metal powder in the powder conveying box 3, this mixing process can be combined with the grinding action of the grinding component 7 to perform alternating and continuous processing of the metal powder, effectively improving the material quality of the metal powder before processing; The linkage unit 8 is set on the powder sintering processing box 1, the pair of mixing components 6 and the grinding component 7; The linkage unit 8 uses the power of the linearly movable drive unit 5 to provide hybrid power and grinding power for the pair of mixing components 6 and the grinding component 7; The linkage unit 8 includes a rack 81 fixedly installed on the inner wall of the powder sintering processing box 1, a first gear 82 meshing with the rack 81, a first sprocket gear 83, a second sprocket gear 84 connected to the first sprocket gear 83 by a chain, and a second gear 85 meshing with the second sprocket gear 84; The first sprocket gear 83 and the first gear 82 are respectively coaxially fixedly connected to the pair of shafts 61, and the second sprocket gear 84 and the second gear 85 are respectively coaxially fixedly connected to the first grinding roller 71 and the second grinding roller 72;

[0048] In this embodiment, when the powder conveying box 3 moves towards the laser forming cylinder 2 to unload material, the first gear 82 and the first sprocket gear 83 can be meshed on the rack 81. This process can synchronously provide rotational power to a pair of shafts 61. At the same time, the second sprocket gear 84, which is connected to the first sprocket gear 83 via chain drive, can rotate synchronously.

[0049] The second gear 85, which is meshed with the second sprocket gear 84, can rotate in the opposite direction to the second sprocket gear 84. This process allows the first grinding roller 71 and the second grinding roller 72 to rotate in the opposite direction, so as to continuously perform fine grinding on the metal powder.

[0050] Referring to Figure 7, the feeding unit 9 is installed on the powder conveying box 3. The feeding unit 9 is used to open or close the opening at the bottom of the powder conveying box 3. The feeding unit 9 includes a feeding drawer 91 that moves through the right side of the powder conveying box 3, a trigger plate 92 fixedly installed on one side of the feeding drawer 91 and facing the right side of the powder conveying box 3, a pair of dampers 93 fixedly installed at both ends of the side of the trigger plate 92, a retaining ring 94 fixedly installed on the outer surface of each damper 93, a return spring 95 fixedly installed on the side of each retaining ring 94, and one end of each damper 93 fixedly installed. The fixed block 96; the return spring 95 is fixedly installed on the side of the trigger plate 92 at one end facing away from the retaining ring 94; a pair of fixed blocks 96 are fixedly installed on the front and rear sides of the powder conveying box 3; a pair of trigger blocks 10 are fixedly installed on both sides of the inner wall of the powder sintering processing box 1 and are arranged parallel to the feeding unit 9; when the powder conveying box 3 moves towards the laser forming cylinder 2, at the same time, when the feeding unit 9 contacts the trigger block 10, the feeding unit 9 opens the opening at the bottom of the powder conveying box 3, and the metal powder in the powder conveying box 3 is fed into the laser forming cylinder 2; when the powder conveying box 3 moves towards the laser forming cylinder 2, at the same time, when the trigger plate 92 is in continuous contact with the trigger block 10, the feeding plate 91 is pulled out laterally on the powder conveying box 3, and the metal powder in the powder conveying box 3 is fed into the laser forming cylinder 2; or, when the trigger plate 92 is not in contact with the trigger block 10, the feeding plate 91 is blocked inside the powder conveying box 3;

[0051] In this embodiment, when the powder conveying box 3 moves towards the laser forming cylinder 2, until the trigger plate 92 contacts the trigger block 10, the trigger plate 92 can pull the unloading plate 91 to move laterally, that is, gradually open the opening at the bottom of the powder conveying box 3 until the powder conveying box 3 is completely moved to the position directly above the laser forming cylinder 2, at which point the opening at the bottom of the powder conveying box 3 is fully open. At this time, the metal powder in the powder conveying box 3 can be fed into the laser forming cylinder 2. In order to ensure sufficient metal powder feeding, the powder conveying box 3 can be controlled to perform short-distance reciprocating linear motion directly above the laser forming cylinder 2. When the powder conveying box 3 finishes feeding and moves away from the position of the laser forming cylinder 2, the trigger plate 92 can gradually disengage from the trigger block 10. At this time, under the reset property of the return spring 95 and the damper 93, the damper 93 can weaken the rebound force of the return spring 95. Finally, the unloading plate 91 can continue to reset into the powder conveying box 3 so as to continue to receive metal powder raw materials for feeding preparation.

[0052] Referring to Figure 8, the clamping unit 11 is installed on the powder conveying box 3. When the powder conveying box 3 moves directly above the laser forming cylinder 2, the clamping unit 11 extends into the laser forming cylinder 2 and vibrates to tighten the metal powder inside the laser forming cylinder 2. The clamping unit 11 includes a fixed support 111 fixedly installed on the left side of the powder conveying box 3, a buffer spring 112 fixedly installed at the bottom of the fixed support 111, a vibration device 113 fixedly installed at the bottom of the buffer spring 112, an L-shaped vibrating plate 114 fixedly installed at the vibration output end of the vibration device 113, a limiting groove 115 opened at the bend of the L-shaped vibrating plate 114, a folding vibrating plate 116 rotatably connected to the limiting groove 115 via a rotating shaft, and a torsion spring 117 installed on the rotating shaft. In this application, the clamping unit 11 can be added in a reasonable number according to the size of the laser forming cylinder 2. The vibration device 113 in this application can be a vibration motor. The two ends of the torsion spring 117 are in contact with the L-shaped vibrating plate 114 and the folding vibrating plate 116, respectively. When the folded vibrating plate 116 is located directly above the laser forming cylinder 2, the folded vibrating plate 116 extends into the laser forming cylinder 2; or, when the folded vibrating plate 116 is away from the laser forming cylinder 2, the folded vibrating plate 116 contacts the inner bottom wall of the powder sintering processing box 1.

[0053] In this embodiment, when the powder conveying box 3 moves towards the laser forming cylinder 2, the folded vibrating plate 116 is at an angle on the L-shaped vibrating plate 114, that is, in contact with the inner bottom wall of the powder sintering processing box 1. Until the powder conveying box 3 moves to the position directly above the laser forming cylinder 2, the folded vibrating plate 116 can extend into the laser forming cylinder 2 under the rebound of the torsion spring 117. Through the excitation force provided by the vibration device 113, the excitation force is transmitted to the metal powder in the laser forming cylinder 2 through the L-shaped vibrating plate 114 and the folded vibrating plate 116 in sequence. This process can increase the compactness between the metal powders and improve the quality of metal powder forming and sintering. When the powder conveying box 3 finishes feeding and moves away from the laser forming cylinder 2, the folded vibrating plate 116 can come into contact with the side of the laser forming cylinder 2 during the movement process. At this time, the compression torsion spring 117 is compressed, and the folded vibrating plate 116 can retract inward to complete the separation of the position.

[0054] It is worth noting that when the folding vibrating plate 116 needs to leave the position of the laser forming cylinder 2, there is no need to release the vibration force. The vibration force is used to fill the original gaps left by the folding vibrating plate 116 in the metal powder, so as to achieve a flat effect before the metal powder is formed.

[0055] Example 2

[0056] This embodiment provides a method for a powder sintering device with convenient material feeding, which is applied to a powder sintering device with convenient material feeding in Embodiment 1, and includes the following steps:

[0057] S1. After injecting mixed metal powder into the powder conveying box 3 through the feeding port 4, start the drive unit 5 to control the powder conveying box 3 to move towards the laser forming cylinder 2 until it moves to the position directly above the laser forming cylinder 2.

[0058] S2, the linkage unit 8 can synchronously drive a pair of mixing components 6 and grinding components 7 to rotate by means of the powder conveying box 3 during the movement process. At this time, the metal powder pre-stored in the powder conveying box 3 is stirred and ground.

[0059] S3. When the powder conveying box 3 moves to the position directly above the laser forming cylinder 2, the material feeding plate 91 is in the open state under the action of the trigger block 10 abutting against the trigger plate 92, that is, the metal powder in the powder conveying box 3 is fed into the laser forming cylinder 2.

[0060] S4. At the same time, when the folded vibrating plate 116, which is in a folded state on the L-shaped vibrating plate 114, moves to a position directly above the laser forming cylinder 2, under the tension of the torsion spring 117, the folded vibrating plate 116 can extend into the laser forming cylinder 2. With the excitation force provided by the vibration device 113, the folded vibrating plate 116 can vibrate the metal powder in the laser forming cylinder 2 to increase the compactness of the metal powder before forming.

[0061] The above description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A powder sintering device for convenient material feeding, comprising a powder sintering processing box (1) and a laser forming cylinder (2) disposed on one side of the bottom of the powder sintering processing box (1); characterized in that, It also includes: a hollow powder conveying box (3), which is disposed inside the powder sintering processing box (1); the top of the powder sintering processing box (1) is provided with a discharge port (4) for injecting metal powder into the powder conveying box (3); a drive unit (5), which is disposed between the powder sintering processing box (1) and the powder conveying box (3); the drive unit (5) is used to drive the powder conveying box (3) to perform linear reciprocating motion facing the laser forming cylinder (2); a pair of mixing components (6), which are rotatably connected inside the powder conveying box (3); the mixing components (6) are used to mix the metal powder injected into the powder conveying box (3); and a grinding component (7), which is rotatably connected to the powder conveying box (3). The powder conveying box (3) is located between a pair of mixing components (6); the grinding component (7) is used to grind the metal powder injected into the powder conveying box (3); a linkage unit (8) is provided on the powder sintering processing box (1), the pair of mixing components (6) and the grinding component (7); the linkage unit (8) provides hybrid power and grinding power to the pair of mixing components (6) and the grinding component (7) by means of the power of the linearly movable drive unit (5); a feeding unit (9) is provided on the powder conveying box (3); the feeding unit (9) is used to open or close the opening at the bottom of the powder conveying box (3); a pair of trigger blocks (10) are fixedly installed on the powder sintering processing box (1). The powder conveying box (3) is located on both sides of the inner wall and is parallel to the feeding unit (9). When the powder conveying box (3) moves towards the laser forming cylinder (2), the feeding unit (9) contacts the trigger block (10), and the feeding unit (9) opens the opening at the bottom of the powder conveying box (3), and the metal powder in the powder conveying box (3) is fed into the laser forming cylinder (2). The powder conveying box (3) is also equipped with a clamping unit (11). When the powder conveying box (3) moves to the top of the laser forming cylinder (2), the clamping unit (11) extends into the laser forming cylinder (2) and vibrates the metal powder in the laser forming cylinder (2) to adjust its density. The material tightening unit (11) includes a fixed support (111) fixedly installed on the left side of the powder conveying box (3), a buffer spring (112) fixedly installed at the bottom of the fixed support (111), a vibration device (113) fixedly installed at the bottom of the buffer spring (112), an L-shaped vibrating plate (114) fixedly installed at the vibration output end of the vibration device (113), a limiting groove (115) opened at the bend of the L-shaped vibrating plate (114), a folding vibrating plate (116) rotatably connected in the limiting groove (115) via a rotating shaft, and a torsion spring (117) provided on the rotating shaft; the two ends of the torsion spring (117) are in contact with the L-shaped vibrating plate (114) and the folding vibrating plate (116) respectively;When the folded vibrating plate (116) is located directly above the laser forming cylinder (2), the folded vibrating plate (116) extends into the laser forming cylinder (2); when the folded vibrating plate (116) is away from the laser forming cylinder (2), the folded vibrating plate (116) contacts the inner bottom wall of the powder sintering processing box (1).

2. The powder sintering equipment with convenient material feeding according to claim 1, characterized in that, The drive unit (5) includes a linear bearing (51) fixedly installed on one side of the powder conveying box (3), a slide rod (52) slidably connected to the linear bearing (51), a threaded sleeve (53) fixedly installed on the other side of the powder conveying box (3), a lead screw (54) threadedly connected to the threaded sleeve (53), and a motor (55) connected to one end of the lead screw (54) via a reducer.

3. The powder sintering equipment for convenient material feeding according to claim 2, characterized in that, The slide bar (52) is fixedly installed on the inner wall of the powder sintering processing box (1), the lead screw (54) is rotatably connected to the inner wall of the powder sintering processing box (1), and the motor (55) is fixedly installed on the outer wall of the powder sintering processing box (1).

4. The powder sintering equipment with convenient material feeding according to claim 3, characterized in that, Each of the mixing components (6) includes a shaft (61), two pairs of mixing plates (62) fixedly mounted on the outer circumferential wall of the shaft (61), and a perforation (63) formed on each mixing plate (62).

5. The powder sintering equipment with convenient material feeding according to claim 4, characterized in that, The grinding assembly (7) includes a first grinding roller (71) and a second grinding roller (72); the first grinding roller (71) and the second grinding roller (72) are arranged vertically.

6. The powder sintering equipment with convenient material feeding according to claim 5, characterized in that, The linkage unit (8) includes a rack (81) fixedly installed on the inner wall of the powder sintering processing box (1), a first gear (82) meshing with the rack (81), a first sprocket gear (83), a second sprocket gear (84) connected by a chain to the first sprocket gear (83), and a second gear (85) meshing with the second sprocket gear (84); the first sprocket gear (83) and the first gear (82) are coaxially fixedly connected to a pair of shafts (61), and the second sprocket gear (84) and the second gear (85) are coaxially fixedly connected to the first grinding roller (71) and the second grinding roller (72), respectively.

7. The powder sintering equipment with convenient material feeding according to claim 1, characterized in that, The feeding unit (9) includes a feeding drawer (91) that moves through the right side of the powder conveying box (3), a trigger plate (92) fixedly installed on one side of the feeding drawer (91) and facing the right side of the powder conveying box (3), a pair of dampers (93) fixedly installed at both ends of the side of the trigger plate (92), a retaining ring (94) fixedly installed on the outer surface of each damper (93), a return spring (95) fixedly installed on the side of each retaining ring (94), and a fixing block (96) fixedly installed at one end of each damper (93); the end of the return spring (95) facing away from the retaining ring (94) is fixedly installed on the side of the trigger plate (92), and the pair of fixing blocks (96) are fixedly installed on the front and rear sides of the powder conveying box (3).

8. The powder sintering equipment with convenient material feeding according to claim 7, characterized in that, When the powder conveying box (3) moves towards the laser forming cylinder (2), and the trigger plate (92) is in continuous contact with the trigger block (10), the feeding plate (91) is pulled out laterally on the powder conveying box (3), and the metal powder in the powder conveying box (3) is fed into the laser forming cylinder (2); when the trigger plate (92) is not in contact with the trigger block (10), the feeding plate (91) is blocked in the powder conveying box (3).

9. A method for a powder sintering apparatus with convenient material feeding, applied in a powder sintering apparatus with convenient material feeding as described in claim 7 or 8, characterized in that, Includes the following steps: S1. After the mixed metal powder is injected into the powder conveying box (3) through the feeding port (4), the drive unit (5) is started to control the position of the powder conveying box (3) facing the laser forming cylinder (2) until it moves to the position directly above the laser forming cylinder (2); S2. The linkage unit (8) can synchronously drive a pair of mixing components (6) and grinding components (7) to rotate by means of the powder conveying box (3) during the movement process. At this time, the metal powder pre-stored in the powder conveying box (3) is stirred and ground; S3. When the powder conveying box (3) moves to the position directly above the laser forming cylinder (2), the triggered block (10) abuts against the trigger. Under the action of plate (92), the feeding plate (91) is in the open state, that is, the metal powder in the powder conveying box (3) is fed into the laser forming cylinder (2); S4, at the same time, based on the folded vibrating plate (116) in the folded state on the L-shaped vibrating plate (114), when it moves to the position directly above the laser forming cylinder (2), under the action of the tension of the torsion spring (117), the folded vibrating plate (116) can extend into the laser forming cylinder (2). With the help of the excitation force provided by the vibration device (113), the folded vibrating plate (116) can vibrate the metal powder in the laser forming cylinder (2) to increase the compactness of the metal powder before forming.

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