阅读说明：本技术 3d双激光金属打印机用金属粉摊铺装置 (Metal powder paving device for 3D double-laser metal printer ) 是由 杨晓卿 于 2021-10-12 设计创作，主要内容包括：本发明提供3D双激光金属打印机用金属粉摊铺装置,涉及3D双激光金属打印机领域。该3D双激光金属打印机用金属粉摊铺装置,包括台面和摊铺组件,所述摊铺组件包括立块,所述立块的内部设置有第二限位槽,所述第二限位槽的左右两侧内壁均设置有卡槽,所述第二限位槽的内部滑动连接有立柱,所述立柱的下端固定连接有第二固定块。通过统一调控挡板的使用角度从而可以达到金属粉在相同时间内输出量相同的目的,有效的对金属粉的输出量进行了控制,避免出现金属粉在工件上分布不均匀的问题,解决了金属粉分布不均匀影响摊铺工作进行的问题。(The invention provides a metal powder paving device for a 3D double-laser metal printer, and relates to the field of 3D double-laser metal printers. This metal powder device that paves for two laser metal printer of 3D includes the mesa and the subassembly that paves, the subassembly that paves is including founding the piece, the inside of founding the piece is provided with the second spacing groove, the left and right sides inner wall of second spacing groove all is provided with the draw-in groove, the inside sliding connection of second spacing groove has the stand, the lower extreme fixedly connected with second fixed block of stand. Thereby can reach the purpose that metal powder output quantity is the same in the same time through the use angle of unified regulation and control baffle, effectually control the output quantity of metal powder, avoid appearing the inhomogeneous problem of metal powder distribution on the work piece, solve the inhomogeneous problem that influences the work of paving and go on of metal powder distribution.)

The metal powder paving device for the 3D double-laser metal printer comprises a table board (1) and a paving assembly (11), and is characterized in that: the spreading component (11) comprises a vertical block (12), a second limiting groove (13) is arranged in the vertical block (12), clamping grooves (14) are formed in the inner walls of the left side and the right side of the second limiting groove (13), an upright column (15) is connected in the second limiting groove (13) in a sliding mode, a second fixing block (16) is fixedly connected to the lower end of the upright column (15), a sliding column (17) is connected in an inner through hole of the upright column (15) in a sliding mode, a third limiting groove (19) is formed in the second fixing block (16), a pushing block (18) is fixedly connected to the lower end of the sliding column (17) in the second fixing block (16) to the third limiting groove (19) in a penetrating mode, a first spring (20) is arranged outside the sliding column (17), and clamping blocks (21) are connected in the through holes of the left side and the right side of the second fixing block (16) in a sliding mode, two equal fixedly connected with dog (22) in opposite side of fixture block (21), two the outside of fixture block (21) all is provided with second spring (23), top right side fixedly connected with second support (26) of mesa (1), the lower extreme fixedly connected with metal powder case (27) of second support (26), the output of baffle (28) is provided with a plurality of unloading hole and all is connected with baffle (28) through torsional spring axle rotation in a plurality of unloading hole, the lower extreme of baffle (28) is connected with haulage rope (29), the right-hand member fixedly connected with a set of connecting block (30) of metal powder case (27), it rotates between the inboard of connecting block (30) and is connected with rotates post (31).

2. The metal powder paving device for the 3D double-laser metal printer according to claim 1, characterized in that: the top of mesa (1) is provided with first spacing groove (3), the inside bottom fixedly connected with motor (4) of first spacing groove (3), the output fixedly connected with threaded rod (5) of motor (4), the other end of threaded rod (5) is rotated and is connected on the inner wall of first spacing groove (3), the outside threaded connection of threaded rod (5) has places platform (6).

3. The metal powder paving device for the 3D double-laser metal printer according to claim 2, characterized in that: the top end of the table board (1) is fixedly connected with two first fixing blocks (9), sliding grooves (10) are formed between the inner sides of the first fixing blocks (9), and two ends of the placing table (6) are connected into the corresponding sliding grooves (10) in a sliding mode.

4. The metal powder paving device for the 3D double-laser metal printer according to claim 2, characterized in that: the table comprises a table top (1), and is characterized in that a first support (7) is fixedly connected to the left side of the top end of the table top (1), a double laser (8) is fixedly connected to the lower end of the first support (7), and the output end of the double laser (8) is located above a placing table (6).

5. The metal powder paving device for the 3D double-laser metal printer according to claim 2, characterized in that: the outer front end fixedly connected with dead lever (24) of second fixed block (16), the lower extreme of dead lever (24) rotates through the pivot and is connected with spreading roller (25), spreading roller (25) are located the top of placing platform (6).

6. The metal powder paving device for the 3D double-laser metal printer according to claim 1, characterized in that: the one end of rotating post (31) runs through one of them connecting block (30) fixedly connected with knob (33), the inside of knob (33) and adjacent connecting block (30) all is provided with a plurality of through-holes and accessible round pin spare links to each other, the spacing post of outside fixedly connected with multiunit (32) of rotating post (31), haulage rope (29) winding just sets up between the inboard of corresponding a set of spacing post (32) in the outside of rotating post (31).

7. The metal powder paving device for the 3D double-laser metal printer according to claim 1, characterized in that: the one end of first spring (20) links to each other with the interior roof of third spacing groove (19), the lower extreme of first spring (20) links to each other with the top of ejector pad (18), the one end of second spring (23) links to each other with the inner wall of third spacing groove (19), the other end of second spring (23) links to each other with dog (22), the equal fixedly connected with landing leg (2) in lower extreme four corners of mesa (1), dog (22) and draw-in groove (14) looks block, second fixed block (16) sliding connection is in second spacing groove (13), the lower extreme of founding piece (12) links to each other with the top of mesa (1).

Technical Field

The invention relates to the technical field of 3D double-laser metal printers, in particular to a metal powder paving device for a 3D double-laser metal printer.

Background

The 3D printer is a machine of an accumulation manufacturing technology, namely a rapid prototyping technology, and is a three-dimensional object manufactured by printing adhesive materials layer by layer on the basis of a digital model file and by using the adhesive materials such as special wax materials, powdered metal or plastic, wherein the 3D double-laser metal printer is a metal printer which takes double lasers as energy sources.

The two laser metal printer of 3D who uses today need cooperate the powder device of spreading out to accomplish metal parts's printing at the printing in-process, the work piece on the workspace is earlier passed through the twin laser sintering shaping with 3D two laser metal printer during operation, the sheet work piece of sintering shaping descends a station, the powder device of spreading out is with the one deck metal powder of spreading out again at sheet work piece top afterwards, accomplish the sintering shaping of accumulation layer upon layer, but at present the powder device during operation of spreading out, can not control the metal powder volume of output, cause the metal powder to appear distributing inhomogeneous condition influence behind the work of spreading out and influence the quality that metal powder fired behind, secondly traditional structure of spreading out can only pave fixed metal thickness, it is lower to use the commonality.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a metal powder paving device for a 3D double-laser metal printer, which solves the problem that the metal powder is unevenly distributed and the paving quality is reduced.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: the metal powder paving device for the 3D double-laser metal printer comprises a table board and a paving component, wherein the paving component comprises a vertical block, a second limiting groove is arranged in the vertical block, clamping grooves are formed in the inner walls of the left side and the right side of the second limiting groove, a vertical column is connected in the second limiting groove in a sliding mode, a second fixed block is fixedly connected to the lower end of the vertical column, a sliding column is connected in an inner through hole of the vertical column in a sliding mode, a third limiting groove is formed in the second fixed block, the lower end of the sliding column penetrates through the second fixed block to the third limiting groove and is fixedly connected with a pushing block, a first spring is arranged on the outer portion of the sliding column, clamping blocks are connected in the through holes of the left side and the right side of the second fixed block in a sliding mode, two opposite sides of the clamping blocks are fixedly connected with a stopping block, and second springs are arranged on the outer portions of the two clamping blocks, the top right side fixedly connected with second support of mesa, the lower extreme fixedly connected with metal powder case of second support, the output of baffle is provided with in a plurality of unloading hole and all rotates through the torsional spring axle and is connected with the baffle, the lower extreme of baffle is connected with the haulage rope, a set of connecting block of right-hand member fixedly connected with of metal powder case, it rotates the rotation post to rotate between the inboard of connecting block.

Preferably, the top of mesa is provided with first spacing groove, the inside bottom fixedly connected with motor of first spacing groove, the output fixedly connected with threaded rod of motor, the other end of threaded rod rotates to be connected on the inner wall of first spacing groove, the outside threaded connection of threaded rod has places the platform.

Preferably, the top end of the table top is fixedly connected with two first fixed blocks, a sliding groove is formed between the inner sides of the two first fixed blocks, and the two ends of the placing table are connected in the corresponding sliding grooves in a sliding mode.

Preferably, the top left side fixedly connected with first support of mesa, the lower extreme fixedly connected with dual laser of first support, the output of dual laser is located the top of placing the platform.

Preferably, the outside front end fixedly connected with dead lever of second fixed block, the lower extreme of dead lever rotates through the pivot and is connected with the gyro wheel that paves, the gyro wheel that paves is located the top of placing the platform.

Preferably, the one end of rotating the post runs through one of them connecting block fixedly connected with knob, the inside of knob and adjacent connecting block all is provided with a plurality of through-holes and accessible round pin spare and links to each other, the spacing post of outside fixedly connected with multiunit of rotating the post, the haulage rope winding just sets up between the inboard of a set of corresponding spacing post in the outside of rotating the post.

Preferably, the one end of first spring links to each other with the interior roof of third spacing groove, the lower extreme of first spring links to each other with the top of ejector pad, the one end of second spring links to each other with the inner wall of third spacing groove, the other end of second spring links to each other with the dog, the equal fixedly connected with landing leg in lower extreme four corners of mesa, dog and draw-in groove looks block, second fixed block sliding connection is in the second spacing inslot, the lower extreme of founding the piece links to each other with the top of mesa.

The working principle is as follows: when the device is used for paving metal powder, firstly, a workpiece is driven to reach the lower part of a metal powder box through the operation of a starting motor, then a rotary knob drives a rotary column to rotate, the rotary column rotates to wind a traction rope, the traction rope winds to drive a baffle plate to synchronously rotate, the baffle plate rotates to remove the sealing of the metal powder box, then the metal powder flows out from the output end of the metal powder box, the use angle of the baffle plate can be adjusted through rotating the rotary column, even if the metal powder falls at different speeds, the purpose that the metal powder has the same output quantity in the same time can be achieved through unified regulation and control, the output quantity of the metal powder is effectively controlled, the problem that the metal powder is not uniformly distributed at a certain position on the workpiece is avoided, then the rotary column is rotated after the metal powder on the workpiece reaches the designated quantity, the baffle automatically resets under the action of the torsion spring shaft to continuously seal the output end of the metal powder box, then the motor drives the workpiece to reach the lower part of the paving roller to pave, when the paving thickness needs to be adjusted, the sliding column can be lifted up to move the push block upwards, the push block does not extrude the clamping block after moving upwards to the inner top wall of the third limiting groove, the clamping block automatically moves out of the clamping groove under the action of the second spring to be flush with the outer part of the second fixing block, then the sliding column is released when the upper body or the lower upright column is pressed down, the push block moves towards the inner lower end of the second fixing block under the action of the first spring, the push block continuously extrudes the clamping block in the moving process, when the clamping block reaches the next clamping groove, the push block automatically enters the clamping groove under the extrusion of the push block, and therefore the adjustment of the height of the second fixing block is realized, thereby the adjustment of second fixed block height realizes the adjustment of the gyro wheel that paves use height, then the work piece that has paved metal powder comes the sintering shaping below of twin laser through the motor drive, then the work piece reciprocating above-mentioned operation certain number of times after can accomplish the printing of metal.

(III) advantageous effects

The invention provides a metal powder paving device for a 3D double-laser metal printer. The method has the following beneficial effects:

1. the invention drives the workpiece to reach the lower part of the metal powder box by starting the motor to operate, then the rotary knob drives the rotary column to rotate, the rotary column rotates to wind the traction rope, the baffle plate can be driven to synchronously rotate by the winding of the traction rope, the seal of the metal powder box is relieved by the rotation of the baffle plate, then the metal powder flows out from the output end of the metal powder box, the use angle of the baffle can be adjusted by rotating the rotating column, even if the dropping speed of the metal powder is different due to the different angles of the baffle, thereby can reach the purpose that metal powder output quantity is the same in the same time through the use angle of unified regulation and control baffle, effectually control the output quantity of metal powder, avoid appearing the inhomogeneous problem of metal powder distribution on the work piece, solve the inhomogeneous problem that influences the work of paving and go on of metal powder distribution.

2. The sliding column is lifted up to enable the pushing block to move upwards, the pushing block does not extrude the clamping block any more after moving upwards to the inner top wall of the third limiting groove, at the moment, the clamping block automatically moves out of the clamping groove under the action of the second spring to be flush with the outer portion of the second fixing block, then the upper body or the vertical column is pressed downwards, the sliding column is loosened, at the moment, the pushing block moves towards the lower end of the inner portion of the second fixing block under the action of the first spring, the pushing block continuously extrudes the clamping block in the moving process, when the clamping block reaches the next clamping groove, the clamping block automatically enters the clamping groove under the extrusion of the pushing block, the height of the second fixing block is adjusted, the using height of the spreading roller is adjusted, the spreading thickness of the device can be adjusted according to requirements, the using universality of the device is high, and the application range is wider.

Drawings

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

FIG. 2 is a schematic view of a first limiting groove structure according to the present invention;

FIG. 3 is a schematic view of the construction of the stand block of the present invention;

FIG. 4 is an enlarged view taken at A in FIG. 3;

FIG. 5 is an enlarged view at B in FIG. 2;

fig. 6 is a schematic view of the structure of the baffle plate of the present invention.

Wherein, 1, a table top; 2. a support leg; 3. a first limit groove; 4. a motor; 5. a threaded rod; 6. a placing table; 7. a first bracket; 8. a dual laser; 9. a first fixed block; 10. a chute; 11. a paving assembly; 12. erecting a block; 13. a second limit groove; 14. a card slot; 15. a column; 16. a second fixed block; 17. a sliding post; 18. a push block; 19. a third limiting groove; 20. a first spring; 21. a clamping block; 22. a stopper; 23. a second spring; 24. fixing the rod; 25. paving a roller; 26. a second bracket; 27. a metal powder box; 28. a baffle plate; 29. a hauling rope; 30. connecting blocks; 31. rotating the column; 32. a limiting column; 33. a knob.

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.

Example (b):

as shown in fig. 1 to 6, an embodiment of the present invention provides a metal powder spreading device for a 3D dual-laser metal printer, including a table top 1 and a spreading assembly 11, where the spreading assembly 11 includes a vertical block 12, a second limiting groove 13 is disposed inside the vertical block 12, clamping grooves 14 are disposed on inner walls of left and right sides of the second limiting groove 13, an upright post 15 is slidably connected inside the second limiting groove 13, a second fixing block 16 is fixedly connected to a lower end of the upright post 15, a sliding post 17 is slidably connected to a through hole inside the upright post 15, a third limiting groove 19 is disposed inside the second fixing block 16, a lower end of the sliding post 17 penetrates through the second fixing block 16 to the third limiting groove 19 and is fixedly connected to a pushing block 18, a first spring 20 is disposed outside the sliding post 17, clamping blocks 21 are slidably connected to through holes of left and right sides of the second fixing block 16, and opposite sides of the two clamping blocks 21 are fixedly connected to a clamping block 22, the two blocks 21 are provided with a second spring 23 on the outside, when the paving height is adjusted, firstly, the sliding column 17 can be lifted up to move the push block 18 upwards, the push block 18 does not extrude the fixture block 21 any more after moving upwards to the inner top wall of the third limiting groove 19, at the moment, the fixture block 21 is automatically moved out of the clamping groove 14 under the action of the second spring 23, the outer part of the fixture block is flush with the outer part of the second fixing block 16, then the upper body or the pressing upright post 15 releases the sliding post 17, at this time, the push block 18 moves towards the lower end of the inner part of the second fixed block 16 under the action of the first spring 20, the push block 18 continues to extrude the fixture block 21 in the moving process, when the fixture block 21 reaches the next fixture slot 14, the second fixing block 16 is extruded by the push block 18 to automatically enter the clamping groove 14, so that the height of the second fixing block 16 is adjusted, and the height of the paving roller 25 is adjusted.

The top of mesa 1 is provided with first spacing groove 3, the inside bottom fixedly connected with motor 4 of first spacing groove 3, motor 4's output end fixedly connected with threaded rod 5, the other end of threaded rod 5 rotates and connects on the inner wall of first spacing groove 3, the outside threaded connection of threaded rod 5 has placing platform 6, starter motor 4 functions and drives threaded rod 5 at 3 internal rotations of first spacing groove, thereby threaded rod 5 rotates the lower extreme that the in-process can drive placing platform 6 and is reciprocal horizontal direction's linear motion in first spacing groove 3, place the upper half lower extreme of platform 6 this moment and the upper surface of mesa 1 and contact.

Two first fixed blocks 9 of top fixedly connected with of mesa 1 all are provided with spout 10 between the inboard of two first fixed blocks 9, place the equal sliding connection in corresponding spout 10 in the both ends of platform 6, place the both sides of platform 6 and slide in spout 10 to can guarantee to place the stability of platform 6 in the removal.

First support 7 of the top left side fixedly connected with of mesa 1, the lower extreme fixedly connected with twin laser 8 of first support 7, the output of twin laser 8 is located the top of placing platform 6, places the below that reachs twin laser 8 behind the work piece surface paves the metal on 6 tops of platform, carries out the sintering and shaping.

The outside front end fixedly connected with dead lever 24 of second fixed block 16, the lower extreme of dead lever 24 rotates through the pivot to be connected with the gyro wheel 25 that paves, and the gyro wheel 25 that paves is located the top of placing platform 6, and after the surperficial metal powder of work piece reachd certain volume, remove the below of the gyro wheel 25 that paves under drive arrangement's effect, then can receive the paving of the gyro wheel 25 at the surperficial metal powder of removal in-process work piece.

Top right side fixedly connected with second support 26 of mesa 1, the lower extreme fixedly connected with metal powder case 27 of second support 26, the output of baffle 28 is provided with a plurality of unloading hole and the downthehole baffle 28 that all is connected with through torsional spring axle rotation of a plurality of unloading, the lower extreme of baffle 28 is connected with haulage rope 29, the right-hand member fixedly connected with of metal powder case 27 a set of connecting block 30, it is connected with rotation post 31 to rotate between the inboard of connecting block 30, thereby rotatory rotation post 31 can carry out the rolling to haulage rope 29, thereby the rolling of haulage rope 29 can drive the angle of baffle 28 and change, thereby change through baffle 28 angle can adjust metal powder whereabouts volume rate in the metal powder case 27, reach the mesh to metal powder output volume regulation and control in the same time.

One end of the rotating column 31 runs through one of the connecting blocks 30 and is fixedly connected with a knob 33, the inside of the knob 33 and the adjacent connecting block 30 is provided with a plurality of through holes and can be connected through a pin piece, the external fixedly connected with multiple groups of limiting columns 32 of the rotating column 31 are wound on the external part of the rotating column 31 and are arranged between the inner sides of the corresponding group of limiting columns 32, so that the winding condition of the baffle 28 can be ensured to appear when the baffle is wound, and then the knob 33 and the limiting columns 32 are connected through the pin piece to complete the fixation of the rotating column 31 after rotation.

One end of a first spring 20 is connected with the inner top wall of the third limiting groove 19, the lower end of the first spring 20 is connected with the top end of a push block 18, the first spring 20 plays a role of elastic reset, when the sliding column 17 is loosened, the push block 18 automatically resets under the action of the first spring 20 to be contacted with the inner bottom wall of the second fixing block 16, one end of a second spring 23 is connected with the inner wall of the third limiting groove 19, the other end of the second spring 23 is connected with a stop 22, the second spring 23 plays a role of elastic reset, four corners of the lower end of the table board 1 are fixedly connected with supporting legs 2, the stop 22 is clamped with clamping grooves 14, the clamping grooves 14 with different heights are clamped with the stop 22, so that the height adjustment of a fixing rod 24 and the height adjustment of the fixing rod 24 are realized, so that metal powders with different thicknesses are paved, the paving device has higher use universality, the second fixing block 16 is slidably connected in the second limiting groove 13, the lower end of the upright block 12 is connected with the top end of the table board 1.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.