CN113320155A

CN113320155A - Spread powder and scrape whitewashed device

Info

Publication number: CN113320155A
Application number: CN202110595905.8A
Authority: CN
Inventors: 韩品连
Original assignee: Shenzhen Yidong Aviation Technology Co Ltd
Current assignee: Shenzhen Yidong Aviation Technology Co Ltd
Priority date: 2021-05-29
Filing date: 2021-05-29
Publication date: 2021-08-31

Abstract

The invention belongs to the technical field of 3D printing powder scraping, and particularly relates to a powder spreading and scraping device which comprises a bottom plate, wherein the upper end face of the bottom plate is vertically connected with a vertical plate, the side wall of the vertical plate is provided with an opening, a moving plate is arranged in the opening in a matched mode, the vertical plate is provided with a driving structure for driving the moving plate to move, the lower side of the moving plate is provided with a mounting plate, the upper end face of the moving plate is provided with an adjusting structure for driving the mounting plate to move up and down, the lower end face of the mounting plate is connected with a connecting body, and the lower end. According to the invention, the connector made of soft materials and the scraper divided into a plurality of modules have the advantages of both the soft scraper and the hard scraper, so that the powder scraping effect is improved, and the printing success is improved.

Description

Spread powder and scrape whitewashed device

Technical Field

The invention relates to the technical field of 3D printing powder scraping, in particular to a powder spreading and scraping device.

Background

3D printing (also called additive manufacturing, build-up manufacturing) is a technology that uses a digital model file as a base, uses an adhesive material such as powdered metal or plastic, and constructs an object by layer-by-layer printing, and a powder scraping device is needed to scrape powder in the 3D printing process, and a scraper is needed to be used by the powder scraping device.

There are two types of current scrapers: hard blades and soft blades. The blade of the soft doctor blade is made of silicon, rubber or soft carbon fibres (brush) and can spread the powder from one side of the printing platform to the other. If the soft blade collides with the metal part being printed, its elasticity makes it possible to pass the deformed part. This means that a soft blade is easier to avoid print failures, but the degree of deformation of the parts may also be greater. On the other hand, the risk of damage to the soft blade is higher. Silicon and rubber materials are not as strong as metal alloys. The blade of the hard scraper is made of high speed steel or ceramic and applies pressure to the powder. It has limited tolerance to component deformation compared to soft blades. This means that the number of parts that are deformed is reduced, but on the other hand the consequences of parts colliding with the doctor blade are more severe.

For example, chinese patent application No.: CN201911304421.2 discloses a powder device is spread to metal powder for 3D metal printer, including carrying on platform and frame bottom plate. The surface of the carrying platform is provided with a guide rail, the surface of the guide rail is provided with a rack, the guide rail is provided with a driving mechanism, one side of the driving mechanism is welded with a powder scraping mechanism, the powder scraping mechanism comprises a supporting arm, the other end of the supporting arm is provided with a connecting plate through a bolt, the surface of the connecting plate is provided with a linear bearing, the surface of a rack bottom plate is provided with a forming cylinder, the rack bottom plate is welded with two stand columns at one side of the forming cylinder, a guide rod is welded between the two stand columns, and the guide rod is in sliding connection with the linear bearing arranged at one side of the supporting arm; this kind of mode has adopted the stereoplasm scraper, and the phenomenon of collision damage appears in the process of scraping the powder easily, and the inconvenience of the powder device of scraping of spreading among the prior art simultaneously carries out accurate regulation.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a powder spreading and scraping device, which solves the problems in the background technology.

The second technical proposal.

The invention specifically adopts the following technical scheme for realizing the purpose:

the utility model provides a spread powder and scrape whitewashed device, includes the bottom plate, the up end of bottom plate is connected with the riser perpendicularly, it is equipped with the movable plate to match in opening and the opening on the lateral wall of riser, be equipped with on the riser and be used for driving the movable plate and carry out the drive structure that removes, the downside of movable plate is equipped with the mounting panel, the up end of movable plate is equipped with the regulation structure that the drive mounting panel carried out reciprocating, the lower terminal surface of mounting panel is connected with the connector, the lower terminal surface longitudinal connection of connector has a set of scraper.

Further, the driving structure comprises a connecting plate arranged on the rear side wall of the vertical plate, gears are rotatably connected to two ends of the lower end face of the connecting plate, a motor is mounted at one end of the upper end face of the connecting plate, a driving end of the motor penetrates through the connecting plate and is connected with one of the gears, a toothed belt is connected between the gears in a transmission mode, and a moving block is connected to the toothed belt in a meshed mode and connected with the moving block and is connected with the moving plate.

Furthermore, the lower end face of the connecting plate is connected with a sliding plate, a sliding block is connected in the sliding plate in a sliding mode, and the sliding block is connected with a moving block.

Further, adjust the structure including offering two through-holes on the movable plate and all matching in two through-holes and being equipped with the guide arm, the top of guide arm is connected with the bottom and the mounting panel of roof and guide arm and is connected, the lower terminal surface of roof is connected with electric telescopic handle.

Further, the scraper is made of a memory alloy and the connecting body is made of a soft material.

(III) advantageous effects

Compared with the prior art, the invention provides a powder spreading and scraping device which has the following beneficial effects:

1. according to the invention, the connecting body made of soft materials and the scraper divided into a plurality of modules have the advantages of both the soft scraper and the hard scraper, so that the powder scraping effect is improved, and the printing success is improved.

2. According to the invention, the movable plate can be driven to move left and right through the driving structure, so that the scraper can accurately move left and right, the powder scraping effect is improved, the flatness of the powder layer can be ensured, and the subsequent printing operation is convenient.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic perspective view of the present invention;

FIG. 4 is a schematic top view of the present invention;

FIG. 5 is a cross-sectional view taken along the line A-A of the present invention.

In the figure: 1. a base plate; 2. a vertical plate; 3. moving the plate; 4. a drive structure; 401. a connecting plate; 402. a gear; 403. a motor; 404. a toothed belt; 405. a moving block; 406. a slide plate; 407. a slider; 5. mounting a plate; 6. an adjustment structure; 601. a guide bar; 602. a top plate; 603. an electric telescopic rod; 7. a linker; 8. and (4) scraping the blade.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

As shown in fig. 1, 2, 3, 4, and 5, a powder spreading and scraping device according to an embodiment of the present invention includes a bottom plate 1, a vertical plate 2 is vertically connected to an upper end surface of the bottom plate 1, a moving plate 3 is provided with an opening on a side wall of the vertical plate 2, the moving plate 3 is provided with a driving structure 4 for driving the moving plate 3 to move, a mounting plate 5 is provided on a lower side of the moving plate 3, an adjusting structure 6 for driving the mounting plate 5 to move up and down is provided on an upper end surface of the moving plate 3, a connecting body 7 is connected to a lower end surface of the mounting plate 5, and a group of scrapers 8 is longitudinally connected to a lower end surface of the connecting body 7; install the part through riser 2 convenience, can also cut apart bottom plate 1, conveniently print the operation, can drive movable plate 3 through drive structure 4 and remove, convenient regulation of carrying out the accuracy to the position of scraper 8, can highly carry out nimble regulation to mounting panel 5 through adjusting structure 6, thereby the convenience is adjusted the height of scraper 8, conveniently spread the powder and scrape the powder, connector 7 has the effect of deformation, avoid printing the mistake more easily, scraper 8 can apply pressure to the powder, can carry out the even powder of scraping.

As shown in fig. 3, in some embodiments, the driving structure 4 includes a connecting plate 401 disposed on the rear side wall of the riser 2, two ends of the lower end surface of the connecting plate 401 are rotatably connected with gears 402, one end of the upper end surface of the connecting plate 401 is mounted with a motor 403, the driving end of the motor 403 penetrates through the connecting plate 401 and is connected with one of the gears 402, toothed belts 404 are connected between the gears 402 in a transmission manner, a moving block 405 is connected to the toothed belts 404 in a meshing manner, and the moving block 405 is connected with the moving plate 3; one of the gears 402 is driven to rotate by the motor 403, the toothed belt 404 is rotated by the rotation of the gear 402, the moving block 405 moves when the toothed belt 404 is driven, and the moving block 405 moves to drive the moving plate 3 to move, so that the position of the scraper 8 is changed.

As shown in fig. 5, in some embodiments, a sliding plate 406 is connected to the lower end surface of the connecting plate 401, a sliding block 407 is slidably connected to the sliding plate 406, and the sliding block 407 is connected to the moving block 405; the slider 407 can be restricted by the slide plate 406 so that the slider 407 can stably slide in the slide plate 406, and the slider 407 can restrict the moving block 405 so that the moving block 405 can stably move.

As shown in fig. 2, in some embodiments, the adjusting structure 6 includes two through holes opened on the moving plate 3, and guide rods 601 are respectively disposed in the two through holes in a matching manner, a top plate 602 is connected to a top end of each guide rod 601, a bottom end of each guide rod 601 is connected to the mounting plate 5, and an electric telescopic rod 603 is connected to a lower end surface of each top plate 602; extension or shorten through electric telescopic handle 603 and make roof 602 reciprocate, and the reciprocating of roof 602 makes guide arm 601 reciprocate and drives mounting panel 5 and reciprocate, and then drives scraper 8 and reciprocate, conveniently scrapes the powder.

As shown in fig. 1, in some embodiments, the spatula 8 is made of a memory alloy and the connecting body 7 is made of a soft material; scraper 8 made through memory alloy makes scraper 8 have the performance of recovering, has concurrently had the advantage of soft scraper 8 and stereoplasm scraper 8 concurrently, and connector 7 can improve scraper 8's deformation degree, improves the effect of scraping the powder.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a spread powder and scrape whitewashed device, includes bottom plate (1), its characterized in that: the up end of bottom plate (1) is connected with riser (2) perpendicularly, it sets movable plate (3) to be equipped with on the lateral wall of riser (2) matching in opening and the opening, be equipped with on riser (2) and be used for driving movable plate (3) and carry out drive structure (4) that remove, the downside of movable plate (3) is equipped with mounting panel (5), the up end of movable plate (3) is equipped with drive mounting panel (5) and carries out regulation structure (6) that reciprocate, the lower terminal surface of mounting panel (5) is connected with connector (7), the lower terminal surface longitudinal connection of connector (7) has a set of scraper (8).

2. A powder spreading and scraping device as claimed in claim 1, wherein: the driving structure (4) comprises a connecting plate (401) arranged on the rear side wall of the vertical plate (2), gears (402) are rotatably connected to two ends of the lower end face of the connecting plate (401), a motor (403) and a driving end of the motor (403) are installed at one end of the upper end face of the connecting plate (401) and penetrate through the connecting plate (401) to be connected with one of the gears (402), a toothed belt (404) is connected between the gears (402) in a transmission mode, and a moving block (405) are connected to the toothed belt (404) in a meshing mode and connected with the moving plate (3).

3. A powder spreading and scraping device as claimed in claim 2, wherein: the lower end face of the connecting plate (401) is connected with a sliding plate (406), a sliding block (407) is connected in the sliding plate (406) in a sliding mode, and the sliding block (407) is connected with a moving block (405).

4. A powder spreading and scraping device as claimed in claim 1, wherein: adjust structure (6) and all match including seting up in two through-holes and two through-holes on movable plate (3) and be equipped with guide arm (601), the top of guide arm (601) is connected with the bottom and mounting panel (5) of roof (602) and guide arm (601) and is connected, the lower terminal surface of roof (602) is connected with electric telescopic handle (603).

5. A powder spreading and scraping device as claimed in claim 1, wherein: the scraper (8) is made of memory alloy and the connecting body (7) is made of soft material.