CN109177152B

CN109177152B - Additive manufacturing powder laying device

Info

Publication number: CN109177152B
Application number: CN201810862336.7A
Authority: CN
Inventors: 王先礼; 喻鹏; 王浩; 袁剑; 吕启涛; 高云峰
Original assignee: Han s Laser Technology Industry Group Co Ltd
Current assignee: Han s Laser Technology Industry Group Co Ltd
Priority date: 2018-08-01
Filing date: 2018-08-01
Publication date: 2020-12-08
Anticipated expiration: 2038-08-01
Also published as: CN109177152A

Abstract

The invention relates to a powder paving device for additive manufacturing. Comprises a powder spreading platform, a powder supply device arranged above the powder spreading platform, a powder separating device, a first limiting block, a second limiting block and a scraper device. The powder separating device comprises a powder separating piece and an elastic restoring piece. The powder distributing part is rotatably arranged relative to the powder spreading platform and at least comprises two sub-groove bodies which can respectively receive powder provided by the powder supply device, and the two sub-groove bodies can incline towards two sides along with the rotation of the powder distributing part so as to respectively discharge the powder of different sub-groove bodies to two sides of the scraper device; the elastic restoring piece is used for driving the powder distributing piece to restore to the initial position when the powder distributing piece does not collide with the first limiting block and the second limiting block. Can carry out two-way shop powder, improve the shaping efficiency.

Description

Additive manufacturing powder laying device

Technical Field

The invention relates to the technical field of additive manufacturing equipment, in particular to a powder laying device for additive manufacturing.

Background

Additive Manufacturing (AM) is commonly known as 3D printing, combines computer-aided design, material processing and forming technologies, and is a Manufacturing technology for Manufacturing solid articles by stacking special metal materials, non-metal materials and medical biomaterials layer by layer in modes of extrusion, sintering, melting, photocuring, spraying and the like through a software and numerical control system on the basis of a digital model file. For example, a layer of powder material is first laid on a worktable, and then a laser beam is used to scan the powder part where the solid part of the manufactured part is located under the control of a computer according to the information of the cross-sectional profile, so that the temperature of the powder is raised to the melting point, and the powder is mutually welded, thereby gradually obtaining the profiles of all layers.

The powder spreading mode of additive manufacturing is various, wherein the powder spreading mode commonly used by Selective Laser Melting (SLM) is double-cylinder unidirectional powder spreading. Namely, one side of the forming cylinder is a powder supply cylinder, and the other side is a powder recovery port. Before powder spreading, the forming cylinder descends by a layer of printing thickness, the powder supply cylinder ascends for supplying powder, the scraper moves from the powder supply cylinder to the powder recovery port for spreading the powder, the rear forming cylinder and the powder supply cylinder move downwards, and the scraper resets. The powder spreading mode returns once every time when one layer of the scraper is spread, and the forming efficiency is low.

Disclosure of Invention

In view of the above, it is necessary to provide an additive manufacturing powder spreading device capable of performing bidirectional powder spreading and improving molding efficiency.

A powder spreading device for additive manufacturing comprises a powder spreading platform, a powder supply device arranged above the powder spreading platform, a powder distributing device arranged above the powder spreading platform and capable of sliding back and forth along the table top of the powder spreading platform, a first limiting block, a second limiting block and a scraper device, wherein the first limiting block and the second limiting block are arranged above the powder spreading platform and distributed along the sliding path of the powder distributing device, and the scraper device is arranged below the powder distributing device; divide the whitewashed device to include:

the powder distributing part is rotatably arranged relative to the powder spreading platform and at least comprises two sub-groove bodies which can respectively bear the powder provided by the powder supply device, and the two sub-groove bodies can incline towards two sides along with the rotation of the powder distributing part so as to respectively discharge the powder of different sub-groove bodies to the two sides of the scraper device; and the elastic restoring piece is used for driving the powder distributing piece to restore to the initial position when the powder distributing piece does not collide with the first limiting block and the second limiting block.

In one embodiment, one powder supply device is arranged; divide whitewashed device still including bumping the piece, bump piece fixed connection in divide whitewashed piece, and can respectively with first stopper with the striking of second stopper, in order to drive sub-tank can topple over towards both sides.

In one embodiment, a protective cover is arranged on the powder spreading platform, and the protective cover and a table top of the powder spreading platform enclose a containing cavity.

In one embodiment, the powder supply device is arranged above the protective cover and communicated with the accommodating cavity, and a powder expansion device is arranged between the powder supply device and the protective cover and used for uniformly diffusing powder supplied from the powder supply device into a powder surface.

In one embodiment, a powder pushing device is further arranged at the top of the accommodating cavity and used for pushing the powder in the powder supply device or the powder expanding device to the powder separating device.

In one embodiment, the powder pushing device includes a powder pushing channel, a powder pushing block slidably disposed in the powder pushing channel, and a driving device for driving the powder pushing block to move in the powder pushing channel, one end of the powder pushing channel is communicated with the powder supplying device or the powder spreading device, and the powder distributing device can move to the other end of the powder pushing channel.

In one embodiment, the powder separating device further comprises a first powder baffle and a second powder baffle which are arranged in the front-back direction of the powder separating device, and the lower ends of the first powder baffle and the second powder baffle are close to the table top of the powder laying platform.

In one embodiment, the top of the powder separating device is further fixedly connected with a powder guiding device, a powder guiding cavity is arranged in the powder guiding device, an upper end opening of the powder guiding cavity is larger than a lower end opening of the powder guiding cavity, and the lower end opening of the powder guiding cavity is located right above the powder separating device.

In one embodiment, the scraper device is fixedly connected with the powder distributing device, and comprises a scraper fixing seat, a scraper adjusting block, a scraper body and a scraper clamping block, wherein the scraper adjusting block and the scraper clamping block jointly clamp the scraper body, the scraper adjusting block is fixed on the scraper fixing seat, and the distance between the scraper body and the table top of the powder laying platform is adjusted by adjusting the relative position of the scraper adjusting block and the scraper fixing seat.

In one embodiment, the powder spreading device further comprises a first powder collecting tank and a second powder collecting tank which are arranged on the powder spreading platform, and the first powder collecting tank and the second powder collecting tank are respectively located at two ends of the moving range of the powder distributing device.

Adopt above-mentioned technical scheme, supply the powder to the powder device through supplying the powder device, divide the branch powder piece of powder device to include two at least and accept respectively the sub-tank body that supplies the powder that the powder device provided, along with divide the rotation of powder piece, two the sub-tank body can be emptyd towards both sides to arrange the powder of different sub-tank bodies respectively scraper device both sides, so, the scraper device can spread the powder to both sides powder, has realized two-way shop powder promptly, improves the shaping efficiency.

Drawings

FIG. 1 is a schematic structural diagram of an additive manufacturing breading unit in one embodiment of the invention;

FIG. 2 is a schematic structural diagram of an additive manufacturing breading unit in an initial state according to an embodiment of the invention;

FIG. 3 is a schematic view of an additive manufacturing powdering device according to an embodiment of the present invention in a first operating state;

FIG. 4 is a schematic structural diagram of an additive manufacturing dusting apparatus in a second operating state in accordance with an embodiment of the present invention;

FIG. 5 is a schematic structural view of an additive manufacturing dusting apparatus in a third operating state according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of an additive manufacturing dusting apparatus in a fourth operating state in accordance with an embodiment of the present invention;

fig. 7 is an enlarged view of a portion a in fig. 6.

Reference numerals: 100. a powder laying platform; 110. a table top; 120. molding a substrate; 130. a molding area; 140. a protective cover; 150. an accommodating cavity; 200. a powder supply device; 300. a powder separating device; 310. powder dividing parts; 311. a sub-tank body; 312. a side wall; 320. bumping blocks; 330. a first powder baffle plate; 340. a second powder baffle plate; 400. a first stopper; 410. a second limiting block; 500. a scraper device; 510. a scraper fixing seat; 520. a scraper adjusting block; 530. a cutter body; 540. a scraper clamping block; 600. a powder material; 700. a powder expanding device; 800. a powder pushing device; 810. a powder pushing channel; 820. pushing the powder block; 830. a drive device; 831. a powder pushing motor; 832. a cam mechanism; 900. a powder guiding device; 910. a powder guide cavity; 920. the upper end is open; 930. the lower end is open; 940. an inner sidewall; 950. a first powder collecting tank; 960. and a second powder collecting tank.

Detailed Description

To facilitate an understanding of the invention, the invention is described more fully below with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

For example, referring to fig. 1, fig. 1 is a schematic structural diagram of an additive manufacturing powder spreading device, which includes a powder spreading platform 100, a powder supplying device 200 disposed above the powder spreading platform 100, a powder dividing device 300 disposed above the powder spreading platform 100 and capable of sliding back and forth along a table surface 110 of the powder spreading platform 100, and further includes a first limiting block 400 (see fig. 5), a second limiting block 410, and a scraper device 500, where the first limiting block 400 and the second limiting block 410 are disposed on two sides of the powder spreading platform 100 along a sliding direction of the powder dividing device 300, and the scraper device 500 is disposed below the powder dividing device 300. The powder platform 100 includes a forming substrate 120, and the forming substrate 120 is located in a forming area 130 of the powder platform 100. The powder supply device 200 is filled with the powder material 600, the powder distribution device 300 can receive the powder material 600 in the powder supply device 200, and the powder distribution device 300 can slide back and forth along the table surface 110 of the powder laying platform 100, for example, slide left and right along the view angle shown in fig. 1. And the powder dividing device 300 can strike the first stopper 400 and the second stopper 410, respectively. The powder supply device 200 may be a quantitative powder supply device, such as a roller quantitative powder supply device, an impeller quantitative powder supply device, a fan-shaped swing quantitative powder supply device, and the like.

Referring to fig. 2, the powder distributing device 300 includes a powder distributing member 310, a striking block 320, and an elastic restoring member (not shown). Wherein, divide powder 310 for spread powder platform 100 and rotate the setting, the axis of rotation that divides powder 310 is basically on a parallel with spread powder platform 100's mesa 110, divide powder 310 at least to include two can accept respectively supply the sub-cell body 311 of the powder material 600 that powder device 200 provided, and along with divide the rotation of powder 310, two sub-cell body 311 can empty towards both sides to respectively arrange the powder material 600 of different sub-cell bodies 311 to the scraper device 500 both sides. The collision block 320 is fixedly connected to the powder dividing member 310, and the collision block 320 can collide with the first limiting block 400 and the second limiting block 410 respectively to drive the sub-tank 311 to tilt towards two sides. The elastic restoring member is used for driving the powder dividing member 310 to restore to the initial position when the powder dividing member does not collide with the first limiting block 400 and the second limiting block 410.

For example, fig. 2 shows a schematic view of an additive manufacturing dusting apparatus in its initial state. The powder dividing member 310 includes three sidewalls 312, the three sidewalls 312 are uniformly diverged outward from the rotation axis of the powder dividing member 310, and three sub-slots 311 are formed between the three sidewalls 312, but only two sub-slots 311 are required for containing the powder material 600 in the present embodiment. The elastic restoring member may be, for example, a torsion spring, and the powder dividing member 310 maintains the initial state shown in fig. 2 under the action of the elastic restoring force of the elastic restoring member, and at this time, the collision block 320 is just attached to the first limiting block 400.

Referring to fig. 3, fig. 3 shows a schematic structural diagram of a first working state of an additive manufacturing powder spreading device, the additive manufacturing powder spreading device runs from the state shown in fig. 2 to the state shown in fig. 3, in the process, the powder distribution device 300 moves to the left, the powder distribution device 300 impacts the first limiting block 400, that is, the first limiting block 400 abuts against the bottom of the impact block 320, so that the powder distribution member 310 rotates counterclockwise by about 60 ° as a whole, and the sub-tank 311 on the right side is in the state shown in fig. 3. The powder is supplied into the sub-tank 311 on the right side by the powder supply device 200, and the powder material 600 flows from the sub-tank 311 on the right side to the powder spreading table 110 on the right side of the scraper device 500.

Fig. 4 is a schematic structural diagram illustrating a second working state of the additive manufacturing powder spreading device, from fig. 3 to fig. 4, the powder distribution device 300 moves to the right for a distance, the powder distribution member 310 is separated from the contact with the first limiting block 400, and the powder distribution member 310 returns to the state illustrated in fig. 4 under the elastic restoring force of the elastic restoring member. At this time, the powder supplied by the powder supply device 200 enters the sub-tank 311 on the left side. In the powder distributing member 310 shown in fig. 4, the powder material 600 in the left sub-tank 311 does not flow out of the left sub-tank 311. Then the powder separating device 300 moves to the right continuously to the state shown in fig. 5, fig. 5 shows a schematic structural diagram of a third working state of the additive manufacturing powder laying device, and in the process from fig. 4 to fig. 5, the scraper device 500 scrapes the powder material 600 falling on the powder laying table 110 onto the forming area 130 of the powder laying platform 100.

Referring to fig. 6, fig. 6 shows a schematic structural diagram of a fourth working state of the additive manufacturing powder spreading device, in the process of fig. 5 to fig. 6, the powder dividing device 300 continues to move rightward until the powder dividing device 300 impacts the second limiting block 410, that is, the second limiting block 410 abuts against the top of the contact block 320, so that the powder dividing member 310 rotates counterclockwise again by about 60 °, and the powder material 600 in the sub-tank body 311 on the left side is poured onto the powder spreading table 110 on the left side of the scraper device 500. Then the powder distributing device 300 is moved to the left to the state shown in fig. 2, and in the process from fig. 6 to fig. 2, the scraper device 500 again scrapes the left powder material 600 onto the molding area 130 of the powder laying platform 100. Thus realizing bidirectional powder spreading.

Since the additive manufacturing powder spreading device is provided in the above embodiment, and the additive manufacturing powder spreading device can perform bidirectional powder spreading, it is easy to think that two powder supply devices 200 may be respectively provided at both sides of the moving range of the powder dividing device 300, but this causes waste of space and increase of cost. In one embodiment, referring to fig. 1, the powder supply device 200 is provided with one sub-tank 311, and when the powder distribution device 300 moves to the position of the powder supply device 200, the sub-tank 311 of the powder supply device 200 is filled at one time. By the arrangement, one set of powder supply device 200 is reduced, and the installation space is saved. Further, the powder supplying device 200 may be, for example, a cylindrical tank, a square tank, or the like.

In one embodiment, referring to fig. 1, a protective cover 140 is disposed on the powder spreading platform 100, the protective cover 140 and the table top 110 of the powder spreading platform 100 enclose an accommodating cavity 150, the powder supply device 200, the powder distribution device 300, the first limiting block 400, the second limiting block 410 and the scraper device 500 are all disposed in the accommodating cavity 150, the powder supply device 200 is disposed above the protective cover 140, and the powder supply device 200 is communicated with the accommodating cavity 150. The protective cover 140 can ensure that the accommodating chamber 150 is in a relatively clean environment.

In one embodiment, with continued reference to fig. 1, a powder spreading device 700 is disposed between the powder supplying device 200 and the protecting cover 140, and the powder spreading device 700 is used for uniformly spreading the powder supplied from the powder supplying device 200 into a powder surface. For example, the powder supply device 200 is a cylindrical tank, and the outlet below the tank is small, so that the powder material 600 is easy to agglomerate after coming out from the outlet below the tank, which is not beneficial to later powder spreading. By arranging the powder spreading device 700, the powder spreading device 700 uniformly disperses the powder material 600 in a larger surface, and the agglomeration phenomenon of the powder material 600 is reduced.

In one embodiment, with continued reference to fig. 1, the powder pushing device 800 is further disposed at the top of the accommodating chamber 150. When the additive manufacturing powder spreading device is provided with the powder expanding device 700, the powder pushing device 800 is connected with the powder expanding device 700, and when the additive manufacturing powder spreading device is not provided with the powder expanding device 700, the powder pushing device 800 is directly connected with the powder supplying device 200. The powder pushing device 800 is used for pushing the powder material 600 in the powder supplying device 200 or the powder expanding device 700 to the powder separating device 300. Specifically, the powder pushing device 800 includes a powder pushing channel 810, a powder pushing block 820 slidably disposed in the powder pushing channel 810, and a driving device 830 for driving the powder pushing block 820 to move in the powder pushing channel 810, one end (left end in fig. 1) of the powder pushing channel 810 is communicated with the powder supplying device 200 or the powder spreading device 700, and the powder separating device 300 can move to the other end (right end in fig. 1) of the powder pushing channel 810. The driving device 830 may include, for example, a powder pushing motor 831 and a cam mechanism 832, wherein the powder pushing motor 831 drives the cam mechanism 832 to move, the cam mechanism 832 drives the powder pushing block 820 to reciprocate in the powder pushing channel 810, and quantitative powder supply can be realized by controlling the rotation angle of the powder pushing motor 831.

In one embodiment, with continuing reference to fig. 1, the powder separating device 300 further includes a first powder baffle 330 and a second powder baffle 340 disposed back and forth along the moving direction of the powder separating device 300, and the lower ends of the first powder baffle 330 and the second powder baffle 340 are close to the table surface 110 of the powder laying platform 100. By arranging the first powder baffle 330 and the second powder baffle 340, the powder material 600 falling from the powder distributing member 310 can be gathered at both sides of the scraper device 500, which facilitates powder spreading.

In one embodiment, with reference to fig. 1, the top of the powder separating device 300 is further fixedly connected with a powder guiding device 900, a powder guiding cavity 910 is arranged in the powder guiding device 900, an upper end opening 920 of the powder guiding cavity 910 is larger than a lower end opening 930, and the lower end opening 930 of the powder guiding cavity 910 is located right above the powder separating device 300. For example, the powder guiding chamber 910 has two inclined inner side walls 940, the opening 920 at the upper end of the powder guiding chamber 910 is larger, and the powder material 600 can enter the opening 920 at the upper end of the powder guiding chamber 910 when the powder dividing apparatus 300 moves in the state shown in fig. 2 and 3.

In one embodiment, with continuing reference to fig. 1, the scraper device 500 is fixedly connected to the powder separating device 300, and with reference to fig. 7, the scraper device 500 includes a scraper fixing base 510, a scraper adjusting block 520, a scraper body 530 and a scraper clamping block 540, the scraper adjusting block 520 and the scraper clamping block 540 jointly clamp the scraper body 530, the scraper adjusting block 520 is fixed to the scraper fixing base 510, and the distance between the scraper and the table surface 110 of the powder laying platform 100 is adjusted by adjusting the relative positions of the scraper adjusting block 520 and the scraper fixing base 510. For example, the adjusting block is fixed to the scraper fixing base 510 by bolts, and by providing a plurality of sets of bolt holes on the scraper adjusting block 520 and the scraper fixing base 510, the relative position relationship between the scraper adjusting block 520 and the scraper fixing base 510 can be adjusted, so that the scraping height can be adjusted, and each layer of the powder material 600 is highly uniform and parallel to the molding substrate 120.

In one embodiment, with continued reference to fig. 1, the powder spreading platform 100 further includes a first powder collecting tank 950 and a second powder collecting tank 960, where the first powder collecting tank 950 and the second powder collecting tank 960 are respectively located at two ends of the moving range of the powder distributing device 300. Through setting up first receipts powder jar 950 and second and receive powder jar 960, scraper device 500 can receive powder jar 950 and second and receive powder jar 960 with powder material 600 and the propelling movement of other impurity to the first of both sides, prevents that the material is extravagant, or piles up on shop's powder platform 100, owing to strike off large granule impurity, has promoted product quality.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The additive manufacturing powder paving device is characterized by comprising a powder paving platform (100), a powder supply device (200) arranged above the powder paving platform (100), a powder distributing device (300) arranged above the powder paving platform (100) and capable of sliding back and forth along a table top (110) of the powder paving platform (100), a first limiting block (400), a second limiting block (410) and a scraper device (500), wherein the first limiting block (400) and the second limiting block (410) are arranged above the powder paving platform (100) and are distributed along a sliding path of the powder distributing device (300), and the scraper device (500) is arranged below the powder distributing device (300); the powder distribution device (300) comprises:

the powder distributing part (310) is rotatably arranged relative to the powder spreading platform (100), the powder distributing part (310) at least comprises two sub-groove bodies (311) which can respectively bear the powder provided by the powder supply device (200), and along with the rotation of the powder distributing part (310), the two sub-groove bodies (311) can be inclined towards two sides so as to respectively discharge the powder of different sub-groove bodies (311) to two sides of the scraper device (500); and

the elastic restoring piece is used for driving the powder distributing piece (310) to restore to the initial position when the powder distributing piece does not collide with the first limiting block (400) and the second limiting block (410);

divide whitewashed device (300) still including bumping piece (320), bump piece (320) fixed connection in divide whitewashed piece (310), and can respectively with first stopper (400) with second stopper (410) striking, in order to drive sub-tank body (311) can be toppled over towards both sides.

2. Additive manufacturing dusting device according to claim 1 whereby a protective cover (140) is arranged on the dusting platform (100), whereby the protective cover (140) encloses a receiving chamber (150) with the table top (110) of the dusting platform (100).

3. The additive manufacturing powder spreading device according to claim 2, wherein the powder supply device (200) is arranged above the protective cover (140) and is communicated with the accommodating cavity (150), a powder expansion device (700) is arranged between the powder supply device (200) and the protective cover (140), and the powder expansion device (700) is used for uniformly diffusing powder supplied from the powder supply device (200) into powder surface.

4. The additive manufacturing powder spreading device according to claim 3, wherein a powder pushing device (800) is further arranged at the top of the accommodating cavity (150), and the powder pushing device (800) is used for pushing the powder in the powder supplying device (200) or the powder expanding device (700) to the powder distributing device (300).

5. The additive manufacturing powder spreading device according to claim 4, wherein the powder pushing device (800) comprises a powder pushing channel (810), a powder pushing block (820) arranged in the powder pushing channel (810) in a sliding mode, and a driving device (830) for driving the powder pushing block (820) to move in the powder pushing channel (810), one end of the powder pushing channel (810) is communicated with the powder supplying device (200) or the powder expanding device (700), and the powder distributing device (300) can move to the other end of the powder pushing channel (810).

6. The additive manufacturing powder spreading device according to claim 5, wherein the driving device (830) comprises a powder pushing motor (831) and a cam mechanism (832), the powder pushing motor (831) drives the cam mechanism (832) to move, the cam mechanism (832) drives a powder pushing block (820) to move in a reciprocating mode in the powder pushing channel (810), and the powder is quantitatively supplied by controlling the rotating angle of the powder pushing motor (831); one powder supply device (200) is arranged.

7. The additive manufacturing powder spreading device according to claim 5, wherein the powder distribution device (300) further comprises a first powder baffle (330) and a second powder baffle (340) which are arranged back and forth along the movement direction of the powder distribution device (300), and the lower ends of the first powder baffle (330) and the second powder baffle are close to the table top (110) of the powder spreading platform (100).

8. The additive manufacturing powder spreading device according to claim 7, wherein a powder guiding device (900) is further fixedly connected to the top of the powder distributing device (300), a powder guiding cavity (910) is arranged in the powder guiding device (900), an upper end opening (920) of the powder guiding cavity (910) is larger than a lower end opening (930), and a lower end opening (930) of the powder guiding cavity (910) is located above the powder distributing device (300).

9. The additive manufacturing dusting device of any of claims 1-7, whereby the scraper device (500) is fixedly connected to the powder dividing device (300), whereby the scraper device (500) comprises a scraper holder (510), a scraper adjustment block (520), a scraper body (530) and a scraper clamping block (540), whereby the scraper adjustment block (520) and the scraper clamping block (540) together clamp the scraper body (530), whereby the scraper adjustment block (520) is fixed to the scraper holder (510), and whereby the distance between the scraper body (530) and the table top (110) of the dusting platform (100) is adjusted by adjusting the relative position of the scraper adjustment block (520) and the scraper holder (510).

10. Additive manufacturing dusting device according to any of the claims 1-7, further comprising a first powder collection tank (950) and a second powder collection tank (960) arranged on the dusting platform (100), the first powder collection tank (950) and the second powder collection tank (960) being located at both ends of the movement range of the powder dividing device (300), respectively.