CN215615106U - Powder 3D printing apparatus is spread to metal - Google Patents

Abstract

The utility model discloses a metal powder spreading 3D printing device, which relates to the field of 3D printing devices and comprises a main body structure, a printing mechanism, a processing mechanism, a moving mechanism and a recovery mechanism, wherein the lower surface of a bottom plate is connected with the lower surface of the inner part of a shell, a bearing table is provided with a first through hole, a protective shell is provided with a second through hole, a workbench is provided with a third through hole, and one end of a powder storage box sequentially penetrates through the first through hole, the second through hole and the third through hole to be in sliding fit with a powder pushing plate. The utility model provides a metal powder spreading 3D printing device which is provided with a metal powder transmission pump for providing power for a powder suction pipe and a recovery pipe, after printing is finished, a third linear motor drives the metal powder transmission pump to move in the X-axis direction, the metal powder transmission pump drives the powder suction pipe to move, the metal powder transmission pump is started to enable the powder suction pipe to generate suction force, and after printing, residual metal powder enters a storage box along the powder suction pipe and the recovery pipe through a flow guide cover to be stored, so that the convenience, the rapidness and the labor saving are realized.

Description

Powder 3D printing apparatus is spread to metal

Technical Field

The utility model relates to the field of 3D printing equipment, in particular to metal powder laying 3D printing equipment.

Background

The metal powder laying 3D printing equipment selectively and hierarchically sinters the solid powder by adopting laser generally, and enables the sintered and molded solidified layers to be superposed layer by layer to generate parts with required shapes, so that the parts with any shapes and completely metallurgically bonded work pieces can be almost directly obtained. The density can reach nearly 100 percent, is a rapid forming technology with great development prospect, and particularly has important application prospect in the fields of aerospace, medical treatment, automobiles, molds and the like.

Powder 3D printing apparatus is spread to metal under prior art has that the metal powder is retrieved inconveniently, prints the in-process article and appear not the shaping condition easily and metal powder quantity shortcoming such as too extravagant, for this we provide a powder 3D printing apparatus is spread to metal.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a metal powder laying 3D printing device which can effectively solve the problems that metal powder is inconvenient to recycle, objects are easy to be unshaped in the printing process, the metal powder consumption is excessive, and the like in the background technology.

In order to solve the technical problems, the utility model is realized by the following technical scheme: a metal powder laying 3D printing device comprises a main body structure, a printing mechanism, a processing mechanism, a moving mechanism and a recovery mechanism, wherein the main body structure comprises a shell, the printing mechanism comprises a powder storage box, a powder pushing plate, a hydraulic cylinder, a powder scraping plate and an installation block, the processing mechanism comprises a bottom plate, a bearing platform, a protective shell and a workbench, the moving mechanism comprises a first linear motor, a linear guide rail, a second linear motor and a third linear motor, the recovery mechanism comprises a metal powder transmission pump and a storage box, the lower surface of the bottom plate is connected with the inner lower surface of the shell, the bearing platform is provided with a first through hole, the protective shell is provided with a second through hole, the workbench is provided with a third through hole, one end of the powder storage box sequentially penetrates through the first through hole, the second through hole and the third through hole to be in sliding fit with the powder pushing plate, one end of the hydraulic cylinder is connected with the upper surface of the bottom plate, the utility model discloses a powder scraping plate, including first linear electric motor, first linear electric motor upper surface, scrape powder board lower surface and be connected with first active cell subassembly, linear guide one end is equipped with first sliding block, scrape powder board lower surface and be connected with first sliding block, second linear electric motor side surface is equipped with second active cell subassembly, installation piece side surface is connected with second active cell subassembly, third linear electric motor upper surface is equipped with third active cell subassembly, the metal powder transmission pump lower surface is connected with third active cell subassembly, first linear electric motor lower surface and linear guide lower surface all with workstation upper surface connection, third linear electric motor opposite side surface and protecting crust side surface connection, the storage box upper surface is connected with bearing platform lower surface.

Preferably, the major structure still includes controller, door, handle and support callus on the sole, the controller is installed in casing side surface, the door passes through hinged joint with casing opposite side surface, the handle both ends all with door side surface welding, a plurality of support callus on the sole all installs in the casing lower surface, the controller respectively with first linear electric motor, second linear electric motor, third linear electric motor, linear guide, laser head, pneumatic cylinder, altitude sensor, electric putter and metal powder transmission pump pass through electric wire electric connection, through the switch of controller control first linear electric motor, second linear electric motor, third linear electric motor, linear guide, laser head, pneumatic cylinder, altitude sensor, electric putter and metal powder transmission pump, wherein, the supporting legs pad has six, the effect of door is the maintenance and the repair of the inside electrical apparatus of convenient later stage, the handle is used for conveniently opening the bin door, and the supporting foot pad is used for enabling the structure to have stability.

Preferably, print mechanism still includes the telescopic link, scrapes whitewashed sword and laser head, telescopic link one end is connected with the pneumatic cylinder other end, the telescopic link other end with push away whitewashed board lower surface and be connected, scrape whitewashed sword and install in scraping whitewashed board lower surface, installation piece upper surface is equipped with spacing hole, laser head one end and spacing jogged joint, the effect of telescopic link is that the promotion pushes away whitewashed board upward movement and makes the metal powder that stores up in the powder case spill over conveniently spread the powder, and the effect of scraping the whitewashed sword is that the metal powder that spills over out is spread evenly on the processing bench, and the effect of laser head is that to carry out the sintering according to the procedure of setting for to the metal powder and draw required shape and pattern.

Preferably, the processing mechanism further comprises a support rod, a processing table, height sensors and an electric push rod, one end of the support rod is welded with the upper surface of the base plate, the other end of the support rod is welded with the lower surface of the bearing table, a first square hole is formed in the upper surface of the bearing table, a second square hole is formed in the upper surface of the protective shell, a third square hole is formed in the upper surface of the working table, one end of the processing table sequentially penetrates through the first square hole, the second square hole and the third square hole to be connected with the upper surface of the electric push rod, the electric push rod is arranged on the upper surface of the base plate, the height sensors are arranged on the upper surface of the working table, six support rods are provided, nine height sensors are provided, the support rods have the effect of enabling the structure to be more stable, the processing table has the effect of processing the metal powder, and the height sensors have the effect of sensing the height of the metal powder layer, the electric push rod is used for adjusting the height of the processing table.

Preferably, the moving mechanism further comprises a first mounting frame and a second mounting frame, the upper surface of the first linear motor is provided with an electronic moving component, the lower surface of the first mounting rack is connected with the electronic moving component, the other end of the linear guide rail is provided with a second sliding block, second mounting bracket lower surface is connected with the second sliding block, first mounting bracket side surface and second mounting bracket side surface are connected with second linear electric motor both ends respectively, the effect of first mounting bracket and second mounting bracket drives the laser head and removes, first linear electric motor's effect is conveniently to scrape powder board and laser head and remove at X axle direction, linear guide's effect is to help scraping powder board and laser head and removes at X axle direction, second linear electric motor's effect makes the laser head remove at Y axle direction, third linear electric motor's effect makes the metal powder transmission pump remove at X axle direction.

Preferably, retrieve mechanism still includes the kuppe, inhales powder pipe and recovery tube, kuppe one end with inhale powder pipe one end and be connected, inhale powder pipe other end and metal powder transmission pump upper surface connection, recovery tube one end and metal powder transmission pump side surface connection, the recovery tube other end and storage box lower surface connection, the kuppe and inhale powder pipe effect and absorb the remaining metal powder of processing bench after the completion of printing, the effect of recovery tube is transported the remaining metal powder of processing bench to the storage box, the effect of metal powder transmission pump is for inhaling powder pipe and recovery tube and providing power.

The utility model has the following beneficial effects:

1. according to the utility model, the metal powder transmission pump is arranged to provide power for the powder suction pipe and the recovery pipe, after printing is finished, the third linear motor drives the metal powder transmission pump to move in the X-axis direction, the metal powder transmission pump drives the powder suction pipe to move, the metal powder transmission pump is started to enable the powder suction pipe to generate suction force, and the residual metal powder after printing enters the storage box along the powder suction pipe and the recovery pipe through the diversion cover for storage, so that convenience, rapidness and manpower saving are realized;

2. the height of the processing table is adjusted by arranging the electric push rod, so that the horizontal height of the upper surface of the processing table is always kept the same as the initial height, and the condition that the final object cannot be formed due to the fact that the laser beam irradiation depth of the laser head generates errors in the printing process because of the deviation of the horizontal height of the processing table is avoided;

3. according to the utility model, the height sensor is arranged to detect the horizontal height of the processing table, after each round of powder laying and printing is finished, the height sensor detects the horizontal height of the processing table, the electric push rod adjusts the horizontal descending of the processing table to keep the constant height of the processing table, and meanwhile, the hydraulic cylinder pushes the powder pushing plate to move upwards at the same height through the telescopic rod, so that metal powder overflowing from the powder storage box is always in a certain amount, the waste of resources caused by excessive metal powder is avoided, and the printing cost is saved.

Of course, it is not necessary for any product in which the utility model is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic overall structure diagram of a metal powder laying 3D printing apparatus according to the present invention;

fig. 2 is a schematic structural diagram of another embodiment of a metal powder-spreading 3D printing apparatus according to the present invention;

FIG. 3 is a schematic diagram of the internal structure of a housing of the metal powder-spreading 3D printing apparatus according to the present invention;

FIG. 4 is a schematic structural diagram of a processing mechanism of the metal powder laying 3D printing device of the utility model;

fig. 5 is a schematic structural diagram of a recycling mechanism of the metal powder laying 3D printing apparatus of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

100. a body structure; 110. a housing; 120. a controller; 130. a bin gate; 140. a handle; 150. supporting the foot pad; 200. a printing mechanism; 210. a powder storage box; 220. a powder pushing plate; 230. a hydraulic cylinder; 240. a telescopic rod; 250. a doctor blade; 260. a powder scraping plate; 270. mounting blocks; 280. a laser head; 300. a processing mechanism; 310. a base plate; 320. a support bar; 330. a bearing table; 340. a protective shell; 350. a work table; 360. a processing table; 370. a height sensor; 380. an electric push rod; 400. a moving mechanism; 410. a first linear motor; 420. a linear guide rail; 430. a second linear motor; 440. a third linear motor; 450. a first mounting bracket; 460. a second mounting bracket; 500. a recovery mechanism; 510. a pod; 520. a powder suction pipe; 530. a recovery pipe; 540. a metal powder delivery pump; 550. and a storage box.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, the utility model is a metal powder spreading 3D printing apparatus, comprising a main body structure 100, a printing mechanism 200, a processing mechanism 300, a moving mechanism 400 and a recycling mechanism 500, wherein the main body structure 100 comprises a housing 110, the printing mechanism 200 comprises a powder storage tank 210, a powder pushing plate 220, a hydraulic cylinder 230, a powder scraping plate 260 and a mounting block 270, the processing mechanism 300 comprises a bottom plate 310, a bearing table 330, a protective shell 340 and a worktable 350, the moving mechanism 400 comprises a first linear motor 410, a linear guide rail 420, a second linear motor 430 and a third linear motor 440, the recycling mechanism 500 comprises a metal powder transmission pump 540 and a storage tank 550, the lower surface of the bottom plate 310 is connected with the inner lower surface of the housing 110, the bearing table 330 is provided with a first through hole, the protective shell 340 is provided with a second through hole, the worktable 350 is provided with a third through hole, one end of the powder storage tank 210 sequentially passes through the first through hole, the second through hole and the third through hole to be in sliding fit with the powder pushing plate 220, one end of the hydraulic cylinder 230 is connected with the upper surface of the base plate 310, the upper surface of the first linear motor 410 is provided with a first rotor assembly, the lower surface of the powder scraping plate 260 is connected with the first rotor assembly, one end of the linear guide rail 420 is provided with a first sliding block, the lower surface of the powder scraping plate 260 is connected with the first sliding block, one side surface of the second linear motor 430 is provided with a second rotor assembly, one side surface of the mounting block 270 is connected with the second rotor assembly, the upper surface of the third linear motor 440 is provided with a third rotor assembly, the lower surface of the metal powder transmission pump 540 is connected with the third rotor assembly, the lower surfaces of the first linear motor 410 and the linear guide rail 420 are both connected with the upper surface of the workbench 350, the other side surface of the third linear motor 440 is connected with one side surface of the protective shell 340, and the upper surface of the storage box 550 is connected with the lower surface of the bearing platform 330.

Further, the main body structure 100 further includes a controller 120, a door 130, a handle 140 and support foot pads 150, the controller 120 is installed on one side surface of the housing 110, the door 130 is connected with the other side surface of the housing 110 through a hinge, both ends of the handle 140 are welded to one side surface of the door 130, a plurality of support foot pads 150 are installed on the lower surface of the housing 110, the controller 120 is respectively electrically connected with the first linear motor 410, the second linear motor 430, the third linear motor 440, the linear guide rail 420, the laser head 280, the hydraulic cylinder 230, the height sensor 370, the electric push rod 380 and the metal powder transfer pump 540 through electric wires, the controller 120 controls the switches of the first linear motor 410, the second linear motor 430, the third linear motor 440, the linear guide rail 420, the laser head 280, the hydraulic cylinder 230, the height sensor 370, the electric push rod 380 and the metal powder transfer pump 540, wherein the number of the support foot pads 150 is six, the door 130 is used for facilitating maintenance and repair of internal electric appliances in the later period, the handle 140 is used for facilitating opening of the door 130, and the supporting foot pad 150 is used for enabling the structure to be more stable.

Further, the printing mechanism 200 further comprises a telescopic rod 240, a powder scraping knife 250 and a laser head 280, one end of the telescopic rod 240 is connected with the other end of the hydraulic cylinder 230, the other end of the telescopic rod 240 is connected with the lower surface of the powder pushing plate 220, the powder scraping knife 250 is installed on the lower surface of the powder scraping plate 260, a limiting hole is formed in the upper surface of the installation block 270, one end of the laser head 280 is connected with the limiting hole, the telescopic rod 240 is used for pushing the powder pushing plate 220 to move upwards to enable metal powder in the powder storage box 210 to overflow and conveniently spread the powder, the powder scraping knife 250 is used for uniformly spreading the overflowed metal powder on the processing table 360, and the laser head 280 is used for sintering the metal powder according to a set program to draw needed shapes and patterns.

Further, the processing mechanism 300 further includes a plurality of support bars 320, a plurality of processing stations 360, height sensors 370 and an electric push rod 380, one end of each of the plurality of support bars 320 is welded to the upper surface of the base plate 310, the other end of each of the plurality of support bars 320 is welded to the lower surface of the bearing table 330, the upper surface of the bearing table 330 is provided with a first square hole, the upper surface of the protective shell 340 is provided with a second square hole, the upper surface of the working table 350 is provided with a third square hole, one end of each of the plurality of processing stations 360 sequentially passes through the first square hole, the second square hole and the third square hole to be connected to the upper surface of the electric push rod 380, the electric push rod 380 is mounted on the upper surface of the base plate 310, the plurality of height sensors 370 are mounted on the upper surface of the working table 350, wherein there are six support bars 320 and nine height sensors 370, the support bars 320 serve to stabilize the structure, the processing stations 360 serve to process the metal powder, the height sensors 370 serve to sense the height of the metal powder layer, the electric push rod 380 functions to adjust the height of the processing table 360.

Further, the moving mechanism 400 further comprises a first mounting frame 450 and a second mounting frame 460, an electronic moving component is arranged on the upper surface of the first linear motor 410, the lower surface of the first mounting frame 450 is connected with the electronic moving component, a second sliding block is arranged at the other end of the linear guide 420, the lower surface of the second mounting frame 460 is connected with the second sliding block, one side surface of the first mounting frame 450 and one side surface of the second mounting frame 460 are respectively connected with two ends of the second linear motor 430, the first mounting frame 450 and the second mounting frame 460 are used for driving the laser head 280 to move, the first linear motor 410 is used for facilitating the movement of the powder scraping plate 260 and the laser head 280 in the X-axis direction, the linear guide 420 is used for assisting the movement of the powder scraping plate 260 and the laser head 280 in the X-axis direction, the second linear motor 430 is used for moving the laser head 280 in the Y-axis direction, and the third linear motor 440 is used for moving the metal powder transmission pump 540 in the X-axis direction.

Further, the recycling mechanism 500 further comprises a diversion cover 510, a powder suction pipe 520 and a recycling pipe 530, one end of the diversion cover 510 is connected with one end of the powder suction pipe 520, the other end of the powder suction pipe 520 is connected with the upper surface of the metal powder transmission pump 540, one end of the recycling pipe 530 is connected with one side surface of the metal powder transmission pump 540, the other end of the recycling pipe 530 is connected with the lower surface of the storage box 550, the diversion cover 510 and the powder suction pipe 520 are used for absorbing the residual metal powder on the processing table 360 after printing is completed, the recycling pipe 530 is used for transporting the residual metal powder on the processing table 360 to the storage box 550, and the metal powder transmission pump 540 is used for providing power for the powder suction pipe 520 and the recycling pipe 530.

The working principle of the utility model is as follows:

wherein the model of the hydraulic cylinder 230 is MR-063, the model of the laser head 280 is KC13, the model of the height sensor 370 is LT-M-0750-S-XL0202, the model of the electric push rod 380 is XC6000, the models of the first linear motor 410, the second linear motor 430 and the third linear motor 440 are DA60-2-B1-T140-C010-0.3, the model of the linear guide rail 420 is LMG30H, the model of the metal powder transmission pump 540 is E360B01, when a person uses the powder scraping device, the numbered programs are written into the controller 120, the hydraulic cylinder 230 is started through the controller 120, the hydraulic cylinder 230 provides power for the telescopic rod 240, the telescopic rod 240 pushes the powder pushing plate 220 to enable the metal powder in the powder storage tank 210 to overflow, then the first linear motor 410 and the linear guide rail 420 are started, the first sliding block and the first sliding block drive the powder scraping plate 260 to move in the X-axis direction, the powder scraping plate 260 drives the powder scraping knife 250 to move, the powder scraping knife 250 transports the overflowed metal powder to the processing table 360 for uniform powder paving, the powder scraping plate 260 returns to the initial position after the powder paving is finished, the second linear motor 430 is started, the laser head 280 freely moves in the X-axis direction and the Y-axis direction through the electronic moving assembly, the second sliding block and the second stator assembly, then the laser head 280 is started, the laser head 280 processes the metal powder on the processing table 360, the laser head 280 returns to the initial position after the first processing is finished, the height sensor 370 detects the height of the processing table 360, the electric push rod 380 is started, the height of the processing table 360 is adjusted through the electric push rod 380, the processing table 360 and the powder scraping knife 250 are always kept at the same equal distance, the hydraulic cylinder 230 is started again, the metal powder in the powder storage tank 210 overflows again, the operation is repeated until the printing is finished, and the third linear motor 440 is started after the printing is finished, the metal powder transmission pump 540 can freely move on the X axis, the metal powder transmission pump 540 is started to provide power for the powder suction pipe 520 and the recovery pipe 530, the residual metal powder on the processing table 360 moves into the storage box 550 through the powder suction pipe 520 and the recovery pipe 530 for storage, the processing table 360 is cleaned conveniently for secondary utilization, and then the bin door 130 is opened to take out the printed object.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a powder 3D printing apparatus is spread to metal which characterized in that: the powder scraping device comprises a main body structure (100), a printing mechanism (200), a processing mechanism (300), a moving mechanism (400) and a recovery mechanism (500), wherein the main body structure (100) comprises a shell (110), the printing mechanism (200) comprises a powder storage box (210), a powder pushing plate (220), a hydraulic cylinder (230), a powder scraping plate (260) and a mounting block (270), the processing mechanism (300) comprises a bottom plate (310), a bearing table (330), a protective shell (340) and a workbench (350), the moving mechanism (400) comprises a first linear motor (410), a linear guide rail (420), a second linear motor (430) and a third linear motor (440), the recovery mechanism (500) comprises a metal powder transmission pump (540) and a storage box (550), the lower surface of the bottom plate (310) is connected with the inner lower surface of the shell (110), the bearing table (330) is provided with a first through hole, the protective shell (340) is provided with a second through hole, the workbench (350) is provided with a third through hole, one end of the powder storage box (210) sequentially penetrates through the first through hole, the second through hole and the third through hole to be in sliding fit with the powder pushing plate (220), one end of the hydraulic cylinder (230) is connected with the upper surface of the base plate (310), the upper surface of the first linear motor (410) is provided with a first rotor assembly, the lower surface of the powder scraping plate (260) is connected with the first rotor assembly, one end of the linear guide rail (420) is provided with a first sliding block, the lower surface of the powder scraping plate (260) is connected with the first sliding block, one side surface of the second linear motor (430) is provided with a second rotor assembly, one side surface of the installation block (270) is connected with the second rotor assembly, the upper surface of the third linear motor (440) is provided with a third rotor assembly, the lower surface of the metal powder transmission pump (540) is connected with the third rotor assembly, the lower surface of the first linear motor (410) and the lower surface of the linear guide rail (420) are both connected with the upper surface of the workbench (350), the other side surface of the third linear motor (440) is connected with the surface of one side of the protective shell (340), and the upper surface of the storage box (550) is connected with the lower surface of the bearing table (330).

2. The metal dusting 3D printing apparatus of claim 1, wherein: main part structure (100) still include controller (120), door (130), handle (140) and support callus on the sole (150), install in casing (110) side surface controller (120), door (130) and casing (110) another side surface pass through hinged joint, handle (140) both ends all with door (130) side surface welding, a plurality of support callus on the sole (150) all install in casing (110) lower surface.

3. The metal dusting 3D printing apparatus of claim 1, wherein: printing mechanism (200) still include telescopic link (240), scrape whitewashed sword (250) and laser head (280), telescopic link (240) one end is connected with pneumatic cylinder (230) other end, telescopic link (240) other end with push away whitewashed board (220) lower surface and be connected, scrape whitewashed sword (250) and install in scraping whitewashed board (260) lower surface, installation piece (270) upper surface is equipped with spacing hole, laser head (280) one end and spacing jogged joint.

4. The metal dusting 3D printing apparatus of claim 1, wherein: processing mechanism (300) still includes bracing piece (320), processing platform (360), altitude sensor (370) and electric putter (380), and is a plurality of bracing piece (320) one end and bottom plate (310) upper surface weld, a plurality of bracing piece (320) other end and bearing platform (330) lower surface weld, bearing platform (330) upper surface is equipped with first square hole, protective housing (340) upper surface is equipped with the second square hole, workstation (350) upper surface is equipped with the third square hole, processing platform (360) one end passes first square hole, second square hole and third square hole and electric putter (380) upper surface connection in proper order, electric putter (380) are installed in bottom plate (310) upper surface, and is a plurality of altitude sensor (370) are all installed in workstation (350) upper surface.

5. The metal dusting 3D printing apparatus of claim 1, wherein: the moving mechanism (400) further comprises a first mounting frame (450) and a second mounting frame (460), an electronic moving assembly is arranged on the upper surface of the first linear motor (410), the lower surface of the first mounting frame (450) is connected with the electronic moving assembly, a second sliding block is arranged at the other end of the linear guide rail (420), the lower surface of the second mounting frame (460) is connected with the second sliding block, and one side surface of the first mounting frame (450) and one side surface of the second mounting frame (460) are respectively connected with two ends of the second linear motor (430).

6. The metal dusting 3D printing apparatus of claim 1, wherein: retrieve mechanism (500) and still include kuppe (510), inhale powder pipe (520) and recovery tube (530), kuppe (510) one end with inhale powder pipe (520) one end and be connected, inhale powder pipe (520) other end and metal powder transmission pump (540) upper surface connection, recovery tube (530) one end and metal powder transmission pump (540) one side surface connection, recovery tube (530) other end and storage box (550) lower surface connection.

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