CN215544940U

CN215544940U - 3D prints and uses scraper convenient to dismantle equipment

Info

Publication number: CN215544940U
Application number: CN202121189981.0U
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: 2022-01-18
Anticipated expiration: 2031-05-29

Abstract

The utility model belongs to the technical field of 3D printing, and particularly relates to a scraper for 3D printing, which is convenient to disassemble and assemble and comprises a powder bed, wherein a transmission structure is arranged on the upper surface of the powder bed, the transmission structure is connected with a scraper mechanism through a sliding seat arranged on the transmission structure, and a guide rod for limiting the sliding seat to incline is arranged on the powder bed. According to the utility model, the hard scraper head is arranged, so that the damage probability of the scraper is reduced, the hard scraper head is fixed on the vertical plate through the torsional spring clamping pad and the long screw rod, when the hard scraper is subjected to larger resistance, the torsional spring in the torsional spring clamping pad is stressed to rotate, so that the hard scraper head is inclined, the hard scraper head is prevented from being blocked and being incapable of moving and damaging a printing part, the scraper mechanism is fixed with the sliding seat through the threaded rod and the nut arranged on the scraper mechanism, so that the scraper mechanism is convenient to disassemble, and the hard scraper head, the torsional spring clamping pad and the vertical plate in the scraper mechanism are fixed through the long screw rod and the nut, so that the hard scraper head is also convenient to disassemble and replace.

Description

3D prints and uses scraper convenient to dismantle equipment

Technical Field

The utility model relates to the technical field of 3D printing, in particular to a scraper for 3D printing, which is convenient to disassemble and assemble.

Background

A common problem with SLM metal 3D printing is part deformation during printing due to high thermal stress, improper part placement or improper support structure, etc. When the deformation of the part exceeds the powder layer, the scraper collides with the part deformation region. In some cases, the blade can pass through the deformation zone. However, in the case that the scraper cannot pass through, serious consequences such as damage to the scraper, quality loss of the powder bed and printing interruption caused by the fact that the scraper cannot pass through the deformation component can be caused, and the common scraper for 3D printing has the following problems:

1. common 3D printing scrapers are divided into two types, namely a hard scraper and a soft scraper, the use of the hard scraper can make the result caused by collision of a component and the scrapers worse, printing is stopped possibly due to the fact that the scrapers cannot pass through the component, and meanwhile, fragments (even the component itself if the connection between the components and a printing platform is not firm) are dragged into a powder bed when the component is damaged, the deformation degree of the component when the soft scraper is used can be larger, and on the other hand, the risk that the soft scraper is damaged is higher.

2. Common 3D prints and uses scraper in order to ensure the result of use, it is fixed comparatively fastening usually, inconvenient dismantlement and change.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides the 3D printing scraper convenient to disassemble and assemble, and solves the problems of the influence of the scraper material on the scraper and printing components and the disassembly of the scraper mentioned in the technical background.

The second technical proposal.

The utility model specifically adopts the following technical scheme for realizing the purpose:

the utility model provides a 3D prints and uses scraper convenient to dismantle equipment, includes the powder bed, the upper surface of powder bed is equipped with transmission structure, transmission structure is connected with scraper mechanism through the sliding seat that sets up on it, be equipped with the guide bar that the restriction sliding seat takes place the incline on the powder bed.

Further, the transmission structure comprises two lead screws which are arranged above the powder bed in parallel through rotating the mounting seat, and one ends of the two lead screws are provided with driven gears.

Further, one side of the upper surface of the powder bed is provided with a motor, the motor is provided with a driving gear through a driving shaft, and the driven gear is meshed with the driving gear through a toothed belt.

Furthermore, a sliding seat in threaded connection with the screw rod is arranged on the screw rod, a threaded rod is arranged at the upper end of the sliding seat, and a nut for fixing the scraper mechanism is in threaded connection with the threaded rod.

Further, scraper mechanism is including fixing the fixed plate on the sliding seat, the lower extreme of fixed plate is equipped with two vertical plates that are symmetric distribution along its midline, the cover is equipped with the long screw rod of its extension direction of perpendicular on the vertical plate, the cover is equipped with hard scraper tool bit and torsional spring card pad in proper order on the pole body of long screw rod, and threaded connection has the nut on it.

Further, the both ends of torsional spring card pad are equipped with fixture block and draw-in groove respectively, one side that the vertical plate faced the torsional spring card pad is equipped with makes the torsional spring card pad can not pivoted fixture block through fixed slot, hard scraper tool bit also is equipped with the draw-in groove with the fixture block joint towards the one end of torsional spring card pad.

Furthermore, a rod sleeve which is sleeved on the guide rod and is in sliding connection with the guide rod is arranged at the lower end of the sliding seat.

(III) advantageous effects

Compared with the prior art, the utility model provides the scraper for 3D printing, which is convenient to disassemble and assemble and has the following beneficial effects:

1. according to the utility model, the hard scraper head is arranged, so that the damage probability of the scraper is reduced, and the hard scraper head is fixed on the vertical plate through the torsional spring clamping pad and the long screw rod, when the hard scraper is subjected to larger resistance, the torsional spring in the torsional spring clamping pad is stressed to rotate, so that the hard scraper head is inclined, and the situation that the hard scraper head cannot move and damage a printing part due to being blocked is avoided.

2. According to the scraper mechanism, the scraper mechanism is fixed with the sliding seat through the threaded rod and the nut arranged on the scraper mechanism, so that the scraper mechanism is convenient to disassemble, the hard scraper tool bit in the scraper mechanism is clamped with the torsional spring clamping pad, the torsional spring clamping pad is clamped with the vertical plate, and the hard scraper tool bit, the hard scraper tool bit and the torsional spring clamping pad are fixed through the long screw rod and the nut, so that the hard scraper tool bit is also convenient to disassemble and replace.

Drawings

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

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

FIG. 3 is a sectional view taken along the direction A-A of the present invention.

In the figure: 1. a powder bed; 2. a transmission structure; 201. rotating the mounting seat; 202. a screw rod; 203. a driven gear; 204. a toothed belt; 3. a sliding seat; 301. a threaded rod; 302. a nut; 303. a rod sleeve; 4. a scraper mechanism; 401. a fixing plate; 402. a vertical plate; 403. a long screw; 404. a hard scraper bit; 405. a torsion spring clamp pad; 406. a nut; 5. a motor; 501. a driving gear; 6. a guide rod.

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, a 3D printing scraper convenient to disassemble and assemble according to an embodiment of the present invention includes a powder bed 1, a transmission structure 2 is disposed on an upper surface of the powder bed 1, the transmission structure 2 is connected to a scraper mechanism 4 through a sliding seat 3 disposed thereon, a guide rod 6 for limiting the sliding seat 3 from deflecting is disposed on the powder bed 1, and the sliding seat 3 is moved back and forth on the transmission structure 2 through the guide rod 6.

As shown in fig. 1, in some embodiments, the transmission structure 2 includes two lead screws 202 disposed in parallel above the powder bed 1 by rotating the mounting seat 201, and one end of each of the two lead screws 202 is provided with a driven gear 203, so that the lead screws 202 can be rotated conveniently by the arrangement of the driven gears 203.

As shown in fig. 1 and 2, in some embodiments, a motor 5 is disposed on one side of the upper surface of the powder bed 1, a driving gear 501 is disposed on the motor 5 through a driving shaft, the driven gear 203 is engaged with the driving gear 501 through a toothed belt 204, and the toothed belt 204 is driven by the driving gear 501 disposed on the motor 5 to rotate the two driven gears 203 simultaneously.

As shown in fig. 2, in some embodiments, the screw rod 202 is provided with a sliding seat 3 in threaded connection therewith, the upper end of the sliding seat 3 is provided with a threaded rod 301, the threaded rod 301 is in threaded connection with a nut 302 for fixing the scraper mechanism 4, and the scraper mechanism 4 is fixed with the sliding seat 3 by the arrangement of the threaded rod 301 and the nut 302, and the scraper mechanism 4 is also convenient to detach.

As shown in fig. 3, in some embodiments, the scraper mechanism 4 includes a fixing plate 401 fixed on the sliding seat 3, the fixing plate 401 is provided at a lower end thereof with two vertical plates 402 symmetrically distributed along a center line thereof, the vertical plates 402 are sleeved with a long screw 403 perpendicular to an extending direction thereof, a shaft of the long screw 403 is sequentially sleeved with a hard scraper head 404 and a torsion spring clamp 405, and a nut 406 is threadedly connected thereto, so that the hard scraper head 404 is fixed by the arrangement of the long screw 403 and the nut 406.

As shown in fig. 3, in some embodiments, two ends of the torsion spring clamping pad 405 are respectively provided with a clamping block and a clamping groove, one side of the vertical plate 402 facing the torsion spring clamping pad 405 is provided with a clamping block which can prevent the torsion spring clamping pad 405 from rotating through the fixing clamping groove, one end of the hard scraper head 404 facing the torsion spring clamping pad 405 is also provided with a clamping groove which is clamped with the clamping block, and the hard scraper head 404 and the torsion spring clamping pad 405 are fixed on the vertical plate 402 and can not rotate freely through the arrangement of the clamping groove and the clamping block.

As shown in fig. 3, in some embodiments, the lower end of the sliding seat 3 is provided with a rod sleeve 303 that is sleeved on the guide rod 6 and slidably connected with the guide rod 6, and the sliding seat 3 is prevented from deflecting by the arrangement of the rod sleeve 303 and the guide rod 6.

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 utility model. 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 3D prints and uses scraper convenient to dismantle equipment, includes powder bed (1), its characterized in that: the upper surface of the powder bed (1) is provided with a transmission structure (2), the transmission structure (2) is connected with a scraper mechanism (4) through a sliding seat (3) arranged on the transmission structure, and a guide rod (6) for limiting the sliding seat (3) to deflect is arranged on the powder bed (1).

2. The 3D printing scraper convenient to disassemble and assemble according to claim 1, characterized in that: the transmission structure (2) comprises two lead screws (202) which are arranged above the powder bed (1) in parallel through rotating the mounting seat (201), and one ends of the two lead screws (202) are provided with driven gears (203).

3. The 3D printing scraper convenient to disassemble and assemble according to claim 2, characterized in that: one side of the upper surface of the powder bed (1) is provided with a motor (5), the motor (5) is provided with a driving gear (501) through a driving shaft, and the driven gear (203) is meshed with the driving gear (501) through a toothed belt (204).

4. The 3D printing scraper convenient to disassemble and assemble according to claim 2, characterized in that: the lead screw (202) is provided with a sliding seat (3) in threaded connection with the lead screw, the upper end of the sliding seat (3) is provided with a threaded rod (301), and the threaded rod (301) is provided with a nut (302) in threaded connection with a fixed scraper mechanism (4).

5. The 3D printing scraper convenient to disassemble and assemble according to claim 1, characterized in that: scraper mechanism (4) are including fixing fixed plate (401) on sliding seat (3), the lower extreme of fixed plate (401) is equipped with two vertical plates (402) that are the symmetric distribution along its central line, the cover is equipped with long screw rod (403) of its extension direction of perpendicular, the cover is equipped with hard scraper tool bit (404) and torsional spring card pad (405) in proper order on the pole body of long screw rod (403), and threaded connection has nut (406) on it.

6. The scraper for 3D printing convenient to disassemble and assemble according to claim 5, characterized in that: the both ends of torsional spring card pad (405) are equipped with fixture block and draw-in groove respectively, vertical plate (402) are equipped with towards one side of torsional spring card pad (405) and make torsional spring card pad (405) can not pivoted fixture block through fixed slot, hard scraper tool bit (404) also is equipped with the draw-in groove with the fixture block joint towards the one end of torsional spring card pad (405).

7. The 3D printing scraper convenient to disassemble and assemble according to claim 1, characterized in that: the lower end of the sliding seat (3) is provided with a rod sleeve (303) which is sleeved on the guide rod (6) and is in sliding connection with the guide rod.