CN220407118U - Low-abrasion scraper for metal 3D printing - Google Patents
Low-abrasion scraper for metal 3D printing Download PDFInfo
- Publication number
- CN220407118U CN220407118U CN202321973111.1U CN202321973111U CN220407118U CN 220407118 U CN220407118 U CN 220407118U CN 202321973111 U CN202321973111 U CN 202321973111U CN 220407118 U CN220407118 U CN 220407118U
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- scraper
- metal
- wall
- low
- mounting groove
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- 239000002184 metal Substances 0.000 title claims abstract description 30
- 238000010146 3D printing Methods 0.000 title claims abstract description 11
- 238000005299 abrasion Methods 0.000 title abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 238000009499 grossing Methods 0.000 claims abstract description 11
- 239000000919 ceramic Substances 0.000 claims abstract description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000002923 metal particle Substances 0.000 description 8
- 239000000843 powder Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000007790 scraping Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
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- Screen Printers (AREA)
Abstract
The utility model provides a low-abrasion scraper for metal 3D printing, which belongs to the technical field of metal 3D printers and comprises a scraper smoothing mechanism, wherein the scraper smoothing mechanism comprises a cutter holder, a scraper body and a cutter rest, the edge of the scraper body is of a ceramic structure, a rectangular groove is formed in the upper side of the cutter holder, a plurality of springs are linearly arranged in the rectangular groove at equal intervals, the upper end of each spring is connected with the cutter rest, a connecting frame is connected with the front edge position of the cutter rest through bolts, and a brush is arranged on the lower side of the connecting frame.
Description
Technical Field
The utility model mainly relates to the technical field of metal 3D printers, in particular to a low-abrasion scraper for metal 3D printing.
Background
The 3D printing process is to melt metal powder to form functional solid part by means of laser melting technology, and the full digital fast forming process is to produce high density metal part directly based on the three-dimensional CAD layered interface data, with the molten metal layer thickness being from 20 microns to 100 microns, and the metal fast forming-3D printer to produce part with the scraping plate to distribute the metal layers homogeneously and to melt the metal layers separately in strictly controlled air environment.
The motion mode of scraper is horizontal rectilinear motion, and the material of scraper is mostly sheetmetal, and in the motion process, "hard contact" with metal raw material powder between, can cause wearing and tearing after long-time use, make the scraper scrap for shop powder work is inhomogeneous, thereby influences the production of product, reduces the smoothness of product, in addition, the change work of scraper is also comparatively troublesome, and the change scraper of commonality also can bring inconvenience for production work.
Disclosure of Invention
The technical scheme of the utility model aims at the technical problem that the prior art is too single, provides a solution which is obviously different from the prior art, and particularly mainly provides a low-abrasion scraper for metal 3D printing, which is used for solving the technical problem that in the existing metal 3D printer proposed in the prior art, after a scraper smoothes a metal raw material layer for a long time, the situation of abrasion easily occurs, so that powder spreading work is uneven.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides a metal 3D prints and uses low wear scraper, includes scraper smoothing mechanism, scraper smoothing mechanism includes blade holder, scraper body and knife rest, the cutting edge of scraper body is ceramic structure, the blade holder downside is provided with the mounting groove, the curved surface of mounting groove inner wall and the curved surface on the scraper body mutually support, the blade holder upside is provided with the rectangle recess, equidistant linearity is provided with a plurality of springs in the rectangle recess, every the upper end of spring all interconnects with the knife rest, there is the link in the front edge position of knife rest through bolted connection, the link downside is provided with the brush.
Furthermore, limiting sliding blocks are arranged on two sides of the inner wall of the tool rest, each limiting sliding block is connected with a limiting sliding groove in a sliding mode, and the limiting sliding grooves are arranged on two sides of the outer wall of the tool rest.
Furthermore, a plurality of holes are linearly formed in the scraper body at equal intervals, and the bottom surface of the inner wall of each hole is an inclined surface.
Furthermore, a cushion block is arranged on one side of the inner wall of the mounting groove, and the side edges of the cushion block are matched with the curved surface of the inner wall of the mounting groove.
Further, the cutter holder one end is provided with the spacing draw-in groove of T type, the spacing draw-in groove lower extreme of T type communicates with the mounting groove, the spacing draw-in groove joint of T type has the spacing board of T type.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, through the mutual matching among the tool apron, the scraper body, the tool rest, the limiting sliding block, the spring and the limiting sliding groove, the metal powder layer is smoothed, the metal layer is uniformly distributed, the contact form of the existing scraper and metal particles is changed into flexible contact, the abrasion to the scraper is reduced, the metal particles with partial light condensation are loosened under the matching of the connecting frame and the hairbrush, the abrasion to the scraper is further reduced under the premise of ensuring the smoothing effect, and the installation and the disassembly of the scraper body are convenient under the matching among the cushion block, the T-shaped limiting plate and the T-shaped limiting clamping groove, so that the scraper has simple operation and stable structure and a certain practical value.
The utility model will be explained in detail below with reference to the drawings and specific embodiments.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic diagram of the overall exploded structure of the present utility model;
FIG. 3 is a schematic view of the tool holder structure of the present utility model;
fig. 4 is a schematic cross-sectional view of the doctor blade body of the utility model.
In the figure: 1. a scraper smoothing mechanism; 11. a tool apron; 111. rectangular grooves; 112. a mounting groove; 113. limiting sliding grooves; 114. t-shaped limit clamping grooves; 12. a scraper body; 121. opening holes; 13. a tool holder; 131. a limit sliding block; 14. a spring; 15. a cushion block; 16. a T-shaped limiting plate; 17. a connecting frame; 171. a brush.
Detailed Description
In order that the utility model may be more fully understood, a more particular description of the utility model will be rendered by reference to the appended drawings, in which several embodiments of the utility model are illustrated, but which may be embodied in different forms and are not limited to the embodiments described herein, which are, on the contrary, provided to provide a more thorough and complete disclosure of the utility model.
It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to the other element, it may be directly connected to the other element or intervening elements may also be present, the terms "vertical", "horizontal", "left", "right" and the like are used herein for the purpose of illustration only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly connected to one of ordinary skill in the art to which this utility model belongs, and the knowledge of terms used in the description of this utility model herein for the purpose of describing particular embodiments is not intended to limit the utility model, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-4, a low-wear scraper for metal 3D printing comprises a scraper leveling mechanism 1, wherein the scraper leveling mechanism 1 comprises a cutter holder 11, a scraper body 12 and a cutter rest 13, the cutting edge of the scraper body 12 is of a ceramic structure, an installation groove 112 is formed in the lower side of the cutter holder 11, the curved surface of the inner wall of the installation groove 112 is matched with the curved surface of the scraper body 12, a rectangular groove 111 is formed in the upper side of the cutter holder 11, a plurality of springs 14 are linearly arranged in the rectangular groove 111 at equal intervals, the upper ends of the springs 14 are connected with the cutter rest 13, a connecting frame 17 is connected with the front edge position of the cutter rest 13 through bolts, and a brush 171 is arranged on the lower side of the connecting frame 17.
The structure realizes the smoothing of the metal powder layer through the scraper smoothing mechanism 1, so that the metal layer is uniformly distributed, the contact form of the existing scraper and metal particles is changed into flexible contact, the abrasion to the scraper is reduced, and the metal particles with partial light condensation are loosened under the cooperation of the hairbrush 171, so that the abrasion to the scraper is further reduced on the premise of ensuring the smoothing effect, and the structure is simple, the installation is convenient, and the structure has a certain practical value;
the method comprises the following steps of firstly placing the cushion block 15 into the mounting groove 112, inserting the scraper body 12 into the mounting groove 112, clamping the T-shaped limiting plate 16 into the T-shaped limiting clamping groove 114, limiting the scraper body 12, installing the connecting frame 17 on the tool rest 13 through bolts, then opening driving equipment in the metal 3D printer, driving the scraper leveling mechanism 1 to linearly move, leveling the metal layer once after each layer is printed, enabling the scraper leveling mechanism 1 to be in contact with the metal particle raw material, enabling part of slightly condensed metal particles to be loose, facilitating the subsequent scraping of the scraper body 12, enabling the edge of the scraper body 12 to be leveled, enabling the scraper body 12 to move slightly up and down due to the action of the springs 14, performing self-adaptive adjustment, flexibly contacting, reducing abrasion, simultaneously preventing the movement error of a lifting table (existing equipment in the metal 3D printer, not being drawn in the figure), causing the object to be printed by the scraper body 12, and scraping the original position if the scraper is in hard contact with the metal particles in the prior art, and the object to be scraped after the lifting table is moved, the object is scraped by the lifting error, and the object is not printed.
Referring to fig. 2, fig. 3 and fig. 4, the two sides of the inner wall of the tool rest 13 are respectively provided with a limit sliding block 131, each limit sliding block 131 is slidably connected with a limit sliding groove 113, the limit sliding grooves 113 are arranged on the two sides of the outer wall of the tool rest 11, limit of the moving direction and the moving amplitude of the scraper body 12 is achieved through mutual matching between the limit sliding blocks 131 and the limit sliding grooves 113, a plurality of holes 121 are linearly arranged on the scraper body 12 at equal intervals, each bottom surface of the inner wall of each hole 121 is an inclined surface, metal particles are prevented from accumulating in the holes 121 through the inclined surface design of the bottom surface of each hole 121, a cushion block 15 is arranged on one side of the inner wall of the corresponding mounting groove 112, the side edge of each cushion block 15 is mutually matched with the curved surface of the inner wall of the corresponding mounting groove 112, one end of the tool rest 11 is provided with a T-shaped limit clamping groove 114, the lower end of the T-shaped limit clamping groove 114 is communicated with the mounting groove 112, and the T-shaped limit clamping groove 114 is clamped with a T-shaped limit plate 16 through mutual matching between the cushion block 15 and the T-shaped limit plate 16, so that limitation of the scraper body 12 is avoided to shake left and right of the scraper body 12 in the mounting groove 112.
While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the embodiments described above, but is intended to be within the scope of the utility model, as long as such insubstantial modifications are made by the method concepts and technical solutions of the utility model, or the concepts and technical solutions of the utility model are applied directly to other occasions without any modifications.
Claims (5)
1. The utility model provides a metal 3D prints and uses low wear scraper, includes scraper smoothing mechanism (1), scraper smoothing mechanism (1) includes blade holder (11), scraper body (12) and knife rest (13), its characterized in that, the cutting edge of scraper body (12) is ceramic structure, blade holder (11) downside is provided with mounting groove (112), the curved surface of mounting groove (112) inner wall and the curved surface on scraper body (12) mutually support, blade holder (11) upside is provided with rectangle recess (111), equidistant linearity is provided with a plurality of springs (14) in rectangle recess (111), every the upper end of spring (14) all is connected with knife rest (13) each other, the front position of knife rest (13) is through bolted connection has link (17), link (17) downside is provided with brush (171).
2. The low-wear scraper for metal 3D printing according to claim 1, wherein limiting sliding blocks (131) are arranged on two sides of the inner wall of the tool rest (13), each limiting sliding block (131) is connected with a limiting sliding groove (113) in a sliding mode, and the limiting sliding grooves (113) are arranged on two sides of the outer wall of the tool rest (11).
3. The low-wear scraper for metal 3D printing according to claim 1, wherein a plurality of holes (121) are linearly arranged on the scraper body (12) at equal intervals, and the inner wall bottom surface of each hole (121) is an inclined surface.
4. The low-wear scraper for metal 3D printing according to claim 1, wherein a cushion block (15) is arranged on one side of the inner wall of the mounting groove (112), and the side edge of the cushion block (15) is matched with the curved surface of the inner wall of the mounting groove (112).
5. The low-wear scraper for metal 3D printing according to claim 2, wherein a T-shaped limiting clamping groove (114) is formed in one end of the cutter holder (11), the lower end of the T-shaped limiting clamping groove (114) is communicated with the mounting groove (112), and the T-shaped limiting clamping groove (114) is clamped with a T-shaped limiting plate (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321973111.1U CN220407118U (en) | 2023-07-26 | 2023-07-26 | Low-abrasion scraper for metal 3D printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321973111.1U CN220407118U (en) | 2023-07-26 | 2023-07-26 | Low-abrasion scraper for metal 3D printing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220407118U true CN220407118U (en) | 2024-01-30 |
Family
ID=89647731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321973111.1U Active CN220407118U (en) | 2023-07-26 | 2023-07-26 | Low-abrasion scraper for metal 3D printing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220407118U (en) |
-
2023
- 2023-07-26 CN CN202321973111.1U patent/CN220407118U/en active Active
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