CN214820896U - Scraper assembly and scraper - Google Patents
Scraper assembly and scraper Download PDFInfo
- Publication number
- CN214820896U CN214820896U CN202022474149.7U CN202022474149U CN214820896U CN 214820896 U CN214820896 U CN 214820896U CN 202022474149 U CN202022474149 U CN 202022474149U CN 214820896 U CN214820896 U CN 214820896U
- Authority
- CN
- China
- Prior art keywords
- scraper
- blade
- face
- edge
- doctor assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Coating Apparatus (AREA)
Abstract
The scraper component comprises a first scraper, a second scraper and a fixing piece, wherein the first scraper is provided with a first blade surface, the second scraper is provided with a second blade surface, and the fixing piece is used for fixing the first scraper and the second scraper and fixing the first blade surface and the second blade surface on the same plane. The scraper component is combined by at least two scrapers, so that the repeated utilization rate of the scrapers is improved, and the use cost is reduced.
Description
Technical Field
The application relates to the technical field of metal 3D laser printing, in particular to a scraper component and a scraper.
Background
The 3D laser printing technology is based on digital model files, and uses special bondable materials such as wax, powdered metal, or plastic to produce three-dimensional objects by using the layer-by-layer printed bondable materials. In the 3D laser printing process, a doctor blade is required to lay down the powder to uniformly and smoothly lay down the bondable material on the forming cylinder.
The condition that the scraper can appear collapsing the sword in the use because current scraper is mostly the integral type structure, when a certain region of scraper appears collapsing the sword, can cause the whole scraper to scrap. Therefore, the existing scraper has high rejection rate, repeated utilization rate and high use cost.
SUMMERY OF THE UTILITY MODEL
Accordingly, there is a need for a doctor assembly and a doctor blade that solve the above problems.
The embodiment of the application provides a scraper subassembly, scraper subassembly includes first scraper, second scraper and mounting, first scraper is equipped with first faceted pebble, the second scraper is equipped with the second faceted pebble, the mounting is fixed first scraper reaches the second scraper, and will first faceted pebble reaches the second faceted pebble is fixed on the coplanar.
Further, in some embodiments of the present application, the first blade has a first cross-section parallel to the first facet, the first cross-section having an area equal to an area of the first facet.
Further, in some embodiments of the present application, the first doctor blade has a length direction, and a cross-section along the length direction includes an angle in a range of 1 ° to 10 ° with the first facet.
Further, in some embodiments of the present application, the first edge surface is provided with a first edge, the second edge surface is provided with a second edge, and the first edge and the second edge extend in a same linear direction.
Further, in some embodiments of the present application, the first scraper is provided with a first end surface, and the second scraper is provided with a second end surface, and the first end surface is used for being attached to the second end surface.
Further, in some embodiments of the present application, the first edge is angled from the first end surface in a range of 0 ° to 90 ° or 90 ° to 180 °.
Further, in some embodiments of the present application, the first scraper is provided with a third end surface opposite to the first end surface, the second scraper is provided with a fourth end surface opposite to the second end surface, and the fixing member is configured to clamp the third end surface and the fourth end surface, so that the first end surface and the second end surface are attached to each other.
Further, in some embodiments of the present application, the fixing member includes a body and a pressing plate, the body is provided with a cavity for accommodating the first scraper and the second scraper; the pressing plate is arranged opposite to the body and used for pressing the first scraper and the second scraper so as to expose the first edge surface and the second edge surface.
Further, in some embodiments of the present application, the pressing plate is provided with a groove, and the groove is located at a position where the first end surface and the second end surface are attached to each other.
The embodiment of the application provides a scraper, be applied to above-mentioned arbitrary scraper subassembly in, the scraper be equipped with the facet and connect in two sides of facet both sides, two the side is parallel to each other, facet place plane and one of them the contained angle of side is the acute angle, the scraper is on a parallel with the area of the section plane of facet with the area of facet equals.
The scraper component is combined by at least two scrapers, so that the repeated utilization rate of the scrapers is improved, and the use cost is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a doctor assembly according to an embodiment of the present application.
Fig. 2 is a schematic view of a disassembled structure of the doctor blade assembly in an embodiment of the present application.
Fig. 3 is a schematic cross-sectional view illustrating a structure of a press plate engaged with a first scraper according to an embodiment of the present application.
Fig. 4 is a schematic structural diagram of a first scraper and a second scraper in an embodiment of the present application.
Fig. 5 is a schematic cross-sectional view of a first scraper according to a first embodiment of the present application.
Fig. 6 is a schematic cross-sectional view of a first scraper according to a second embodiment of the present application.
Fig. 7 is a schematic cross-sectional view of a first scraper according to a third embodiment of the present application.
Fig. 8 is a schematic cross-sectional view of a first scraper according to a fourth embodiment of the present application.
Fig. 9 is a schematic structural diagram of a mounting frame in an embodiment of the present application.
Description of the main elements
Fixing member 10
First mounting part 31
The following detailed description will further illustrate the present application in conjunction with the above-described figures.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.
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 also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
The embodiment of the application provides a scraper subassembly, scraper subassembly includes first scraper, second scraper and mounting, first scraper is equipped with first faceted pebble, the second scraper is equipped with the second faceted pebble, the mounting is fixed first scraper reaches the second scraper, and will first faceted pebble reaches the second faceted pebble is fixed on the coplanar.
The embodiment of the application still provides a scraper, is applied to above-mentioned arbitrary scraper subassembly in, the scraper be equipped with the facet and connect in two sides of facet both sides, two the side is parallel to each other, facet place plane and one of them the contained angle of side is the acute angle, the scraper is on a parallel with the area of the section plane of facet with the area of facet equals.
The scraper component is combined by at least two scrapers, so that the repeated utilization rate of the scrapers is improved, and the use cost is reduced.
Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1, the present application provides a doctor assembly 100, wherein the doctor assembly 100 can be used for powder laying during 3D laser printing to uniformly and evenly lay down bondable material on a forming cylinder. The doctor assembly 100 includes a securing member 10 and at least two doctor blades 20. The blades 20 are fixed in the fixture 10 with the blades 20 abutting each other and arranged side-by-side. In the printing process, when one of the scrapers 20 breaks down the sword, can the quick replacement correspond scraper 20 of position, compare with the current mode of using the whole scraper, need not change the whole scraper, improved the reuse rate of scraper and reduced the disability rate of scraper, effectively reduced use cost to the efficiency of tool changing has still been improved.
Referring also to fig. 2, in one embodiment, doctor assembly 100 includes three doctor blades 20, and doctor blades 20 are in abutting contact with each other and arranged side-by-side. Two of the blades 20 abutting against each other are defined as a first blade 21 and a second blade 22, and the structure of the blade 20 and the positional relationship between the three blades 20 will be specifically described by taking the first blade 21 and the second blade 22 as an example.
The first doctor blade 21 has a first edge surface 211 and a first edge 2111, and the second doctor blade 22 has a second edge surface 221 and a second edge 2211. The fixing member 10 fixes the first scraper 21 and the second scraper 22, and fixes the first blade surface 211 and the second blade surface 221 on the same plane, and the first blade edge 2111 and the second blade edge 2211 extend along the same straight line direction, so that the powder is spread uniformly in the 3D laser printing process.
It will be appreciated that the first and second facets 211, 221 may be on the same contoured surface, with the first and second edges 2111, 2211 extending in the same arcuate direction.
It is understood that in other embodiments, the number of blades 20 in the blade assembly 100 is one of 2, 4, 5, 6, 7, 8, 9, 10, etc. in other numbers. When the fixing member 10 has a fixed length, the fixing member 10 can be adapted to fix different numbers of the scrapers 20 by adjusting the length of each of the scrapers 20. The greater the number of blades 20 in the blade assembly 100, the greater the reuse efficiency. In the using process, the length of the scraper 20 at the position where the cutter breakage is easy to occur is smaller than the lengths of the scrapers 20 at other positions where the cutter breakage is not easy to occur, so that the volume of replacing the scraper 20 is reduced, and the using cost is reduced.
The fixing member 10 includes a body 11 and a pressing plate 12. The body 11 is provided with a cavity 111 for accommodating the scraper 20. The two opposite sidewalls 112 of the cavity 111 respectively clamp two ends of the blade group formed by the blades 20, so that the first blade 21 and the second blade 22 are abutted against each other.
The pressing plate 12 is disposed opposite to the body 11 and configured to press the first scraper 21 and the second scraper 22 to expose the first blade surface 211 and the second blade surface 221. The platen 12 is provided with grooves 121, and the grooves 121 are located at the contact positions between the scrapers 20, for example, the contact positions of the first end surface of the first scraper 21 and the second end surface of the second scraper 22. The groove 121 divides the pressing plate 12 into multiple segments, and each segment of the pressing plate 12 is attached to a scraper 20, so that the pressing effect is prevented from being affected by the difference between the first scraper and the second scraper. In one embodiment, the pressing plate 12 and the inner wall of the chamber 111 are provided with fastening holes 122 uniformly arranged, and the pressing plate 12 is connected to the body 11 by screws, so that the pressing plate 12 applies uniform pressure to the scraper 20.
In one embodiment, the side of the first scraper 21 facing away from the first edge surface 211 is located on the side of the fastening hole 122, and the first scraper 21 is clamped between the pressing plate 12 and the body 11 by passing a screw through the fastening hole 122. It is understood that, in other embodiments, the first scraper 21 is provided with a connection hole corresponding to the fastening hole 122, and the first scraper 21 is clamped between the pressing plate 12 and the body 11 by a screw passing through the fastening hole 122 and the connection hole.
Referring also to fig. 3, the pressing plate 12 has a pressing surface 123 and a first surface 124, the first surface 124 and the first scraper 21 are connected to a connecting line 125, and the angle between the pressing surface 123 and the first surface 124 is an acute angle to prevent powder from accumulating at the connecting position between the pressing plate 12 and the first scraper 21 during the operation of the scraper assembly 100.
The first blade 21 has a length direction, and a cross section 211a along the length direction has an angle in the range of 1 ° to 10 ° with the first edge face 211. Specifically, the first scraper 21 has a first side surface 213 and a second side surface 214 respectively connected to both sides of the first blade surface 211, and the first side surface 213 and the second side surface 214 are parallel to each other. A plane perpendicular to the first side surface 213 and the second side surface 214 is a cross section 211a of the first scraper 21 along the length direction. In one embodiment, the cross-section 211a along the length is at one of 1 °, 2 °, 3 °, 4 °, 5 °, 6 °, 7 °, 8 °, 9 °, and 10 ° to the first facet 211.
Referring to fig. 4 and 5, the first scraper 21 has a first cross section 212 parallel to the first blade surface 211, and the area of the first cross section 212 is equal to the area of the first blade surface 211. When the first blade surface 211 is chipped, the first blade surface 211 is polished to expose a first cross section 212 parallel to the first blade surface 211. The first profile 212 replaces the first edge surface 211, thereby enabling recycling of the first blade 21.
Specifically, the first scraper 21 is further provided with a third side surface 215 connecting the first side surface 213 and the second side surface 214 on the side away from the first blade surface 211. The first side surface 213 and the second side surface 214 are parallel, and the first cross section 212 is disposed between the first edge surface 211 and the third side surface 215, so that the area of the first cross section 212 is equal to the area of the first edge surface 211, thereby realizing the recycling of the first scraper 21.
Referring to fig. 5, in an embodiment, the third side 215 is perpendicular to the first side 213 and the second side 214; referring to fig. 6, in one embodiment, the third side surface 215 is parallel to the first blade surface 211; referring also to fig. 7, in one embodiment, the third side 215 is an irregular combination of planes; referring to fig. 8, in an embodiment, the third side surface 215 is an arc surface. The different shapes of the third side 215 are adapted to different cavities 111, which improves the fastening effect of the first scraper 21 in the holder 10.
Referring to fig. 4 again, the end of the first blade 21 is provided with a first end surface 216, the end of the second blade 22 is provided with a second end surface 226, and the first end surface 216 and the second end surface 226 are attached to each other to improve the contact tightness between the first blade 21 and the second blade 22, so that the first blade surface 211 and the second blade surface 221 are fixed on the same plane, the gap between the first blade surface 211 and the second blade surface 221 is reduced, and the connection tightness between the first blade 21 and the second blade 22 is improved, so that the powder can be spread uniformly in the 3D laser printing process.
The first scraper 21 is provided with a first edge 2111, and the first end surface 216 is obliquely arranged relative to the first edge 2111 so as to increase the attaching area of the first end surface 216 and the second end surface 226, reduce the gap between the first scraper 21 and the second scraper 22 when the first scraper 21 and the second scraper 22 are abutted, and further improve the connection tightness of the first scraper 21 and the second scraper 22. Specifically, first edge 2111 may be angled with respect to first end face 216 in a range of 0 ° to 90 °, or first edge 2111 may be angled with respect to first end face 216 in a range of 90 ° to 180 °.
Accordingly, the second blade 22 is provided with a second edge 2211, and the second edge 2211 is aligned with the first edge 2111 in a state where the fixing member 10 fixes the first blade 21 and the second blade 22. The second end face 226 is obliquely arranged relative to the second edge 2211 and is attached to the first end face 216, and when the included angle between the first edge 2111 and the first end face 216 ranges from 0 ° to 90 °, the included angle between the second edge 2211 and the second end face 226 ranges from 90 ° to 180 °; second edge 2211 is angled with respect to second end face 226 in a range of 0 to 90 when first edge 2111 is angled with respect to first end face 216 in a range of 90 to 180.
The first scraper 21 further has a third end surface 217 opposite to the first end surface 216, the second scraper 22 has a fourth end surface 227 opposite to the second end surface 226, and the fixing member 10 is configured to clamp the third end surface 217 and the fourth end surface 227, so that the first end surface 216 and the second end surface 226 are attached to each other.
Referring also to fig. 9, the doctor assembly 100 further includes a mounting bracket 30. The mounting frame 30 is provided with a first mounting portion 31 and a second mounting portion 32, the first mounting portion 31 is used for mounting the fixing member 10, and the blade surfaces of the first scraper 21 and the second scraper 22 fixed by the fixing member 10 are kept horizontal, so that powder can be spread in the 3D laser printing process. The second mounting portion 32 is used to connect a driving device to drive the mounting frame 30 to move. In one embodiment, the mounting frame 30 has a triangular shape, and the first mounting portion 31 and the second mounting portion 32 are disposed at two right-angle sides of the triangular shape, so as to stabilize the scraper assembly 100.
The present application further provides a scraper blade 20, and the scraper blade 20 is applied to the scraper assembly 100, and has the same structure as the first scraper blade 21 or the second scraper blade 22. In combination with the above description of the structure of the first scraper 21, in summary, the scraper 20 is provided with an edge surface and two side surfaces connected to two sides of the edge surface, the two side surfaces are parallel to each other, an included angle between a plane of the edge surface and one of the side surfaces is an acute angle, and an area of a section of the scraper parallel to the edge surface is equal to an area of the edge surface. The end part of the scraper is provided with an end face, the scraper is provided with a blade edge, and the included angle range of the blade edge and the end face is 0-90 degrees or 90-180 degrees.
Among the above-mentioned scraper subassembly 100, through setting up two at least scrapers 20, at the printing in-process, when one of them scraper 20 appears collapsing the sword, can quick replacement correspond the scraper 20 of position, compare with the mode of current use whole scraper, need not change whole scraper, improved the reuse rate of scraper and reduced the disability rate of scraper, effectively reduced use cost to the efficiency of tool changing has still been improved. Since the first scraper 21 is provided with the first cross section 212 parallel to the first blade surface 211 and the area of the first cross section 212 is equal to the area of the first blade surface 211, when the first blade surface 211 is broken, the first blade surface 211 is ground to expose the first cross section 212 parallel to the first blade surface 211, and the first cross section 212 replaces the first blade surface 211, so that the first scraper 21 is recycled, and the use cost is effectively reduced.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present application and are not to be taken as limiting the present application, and that suitable changes and modifications to the above embodiments are within the scope of the present disclosure as long as they are within the spirit and scope of the present application.
Claims (10)
1. A doctor assembly, comprising:
a first scraper comprising a first facet;
a second blade comprising a second facet; and
and the fixing piece is used for fixing the first scraper and the second scraper so as to fix the first blade surface and the second blade surface on the same plane.
2. The doctor assembly as claimed in claim 1, wherein: the first blade has a first cross-section parallel to the first edge face, the first cross-section having an area equal to the area of the first edge face.
3. The doctor assembly as claimed in claim 1, wherein: the first scraper blade has a length direction, and a cross section along the length direction forms an included angle with the first blade surface in a range of 1-10 degrees.
4. The doctor assembly as claimed in claim 1, wherein: the first blade surface is provided with a first blade edge, the second blade surface is provided with a second blade edge, and the first blade edge and the second blade edge extend along the same straight line direction.
5. The doctor assembly as claimed in claim 2, wherein: the first scraper is provided with a first end face, the second scraper is provided with a second end face, and the first end face is used for being attached to the second end face.
6. The doctor assembly as claimed in claim 5, wherein: the included angle between the first edge and the first end face ranges from 0 degrees to 90 degrees or from 90 degrees to 180 degrees.
7. The doctor assembly as claimed in claim 5, wherein: the fixing member includes:
the scraper comprises a body, a first scraper and a second scraper, wherein the body is provided with a cavity for accommodating the first scraper and the second scraper;
and the pressing plate is opposite to the body and is used for pressing and holding the first scraper and the second scraper so as to expose the first edge surface and the second edge surface.
8. The doctor assembly as claimed in claim 7, wherein: the first scraper is provided with a third end face back to the first end face, the second scraper is provided with a fourth end face back to the second end face, the cavity is provided with a side wall, and the side wall is used for clamping the third end face and the fourth end face so that the first end face and the second end face are mutually attached.
9. The doctor assembly as claimed in claim 7, wherein: the pressing plate is provided with a groove, and the groove is located at the joint of the first end face and the second end face.
10. A scraper blade, characterized in that: the scraper is provided with a blade face and two side faces connected to two sides of the blade face, the two side faces are parallel to each other, an included angle between a plane where the blade face is located and one side face is an acute angle, and the area of a section of the scraper parallel to the blade face is equal to that of the blade face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022474149.7U CN214820896U (en) | 2020-10-31 | 2020-10-31 | Scraper assembly and scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022474149.7U CN214820896U (en) | 2020-10-31 | 2020-10-31 | Scraper assembly and scraper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214820896U true CN214820896U (en) | 2021-11-23 |
Family
ID=78756859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022474149.7U Active CN214820896U (en) | 2020-10-31 | 2020-10-31 | Scraper assembly and scraper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214820896U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114919175A (en) * | 2022-04-30 | 2022-08-19 | 共享智能装备有限公司 | Powder paving device and 3D printer |
| CN117695693A (en) * | 2024-02-02 | 2024-03-15 | 天津鲁华泓锦新材料科技有限公司 | Film scraping device and film scraping evaporator |
-
2020
- 2020-10-31 CN CN202022474149.7U patent/CN214820896U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114919175A (en) * | 2022-04-30 | 2022-08-19 | 共享智能装备有限公司 | Powder paving device and 3D printer |
| CN117695693A (en) * | 2024-02-02 | 2024-03-15 | 天津鲁华泓锦新材料科技有限公司 | Film scraping device and film scraping evaporator |
| CN117695693B (en) * | 2024-02-02 | 2024-04-16 | 天津鲁华泓锦新材料科技有限公司 | Film scraping device and film scraping evaporator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214820896U (en) | Scraper assembly and scraper | |
| US20120099935A1 (en) | Cutting Tool and Cutting Insert Therefor | |
| CN203863397U (en) | Clamp for efficient machining of inclined plane | |
| US20110255926A1 (en) | Cutting Tool and Cutting Insert Therefor | |
| JP2016502940A (en) | Cutting tool with a cutting insert having a non-contact side abdomen | |
| KR20100049056A (en) | Cutting tool, tool body and cutting insert therefor | |
| JP6406718B2 (en) | Indexable asymmetric cutting inserts and cutting tools for indexable asymmetric cutting inserts | |
| KR101750130B1 (en) | Cutting insert and cutting tool | |
| US20020071187A1 (en) | Working method of die for use for fresnel lens, cutting tool for use with the working method, die worked through execution of the working method, and fresnel lens worked from the die | |
| JP7221289B2 (en) | Modular turning tool with interchangeable adapters | |
| CN212399979U (en) | Cooling device and hollow bonding plate comprising same | |
| CN209754013U (en) | Powder spreading device | |
| CN210599753U (en) | Component for preventing abnormal sound of clamped plastic part | |
| CN210756438U (en) | Broach tool bit fixed knot constructs | |
| EP2838684A1 (en) | Cutting tool assembly with removable tool head | |
| CN109663937B (en) | Inner hole end face groove processing cutter | |
| CN217225180U (en) | Switching presser device | |
| CN212635808U (en) | Cutter for optical fiber connector product | |
| CN113458437B (en) | Rigid clamping system of slotting tool | |
| CN216370477U (en) | Multipurpose bimetal saw blade with gradient tooth structure | |
| CN214163085U (en) | Pneumatic clamping scissors for clamping and shearing silk covered wires and yarn covered wires | |
| CN221247212U (en) | Stroke extension device for gear honing | |
| CN213055230U (en) | Bamboo wood cutting finish plane cutter | |
| CN216966391U (en) | Adjustable chamfer combined slotting tool | |
| CN210572968U (en) | Laser mirror mounting bracket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 518109 Foxconn H5 plant 101, No. 2, Donghuan 2nd Road, Fukang community, Longhua street, Longhua District, Shenzhen, Guangdong Province; plant 5, building C09, 4th floor, building C07, 2nd floor, building C08, 3rd floor, 4th floor, building C04, zone B, Foxconn Hongguan science and Technology Park, Fucheng Dasan community, Guanlan street, Guangdong Province Patentee after: Fulian Yuzhan Technology (Shenzhen) Co.,Ltd. Address before: 518109 Guangzhou Guanlan Foxconn Hongguan Science Park B workshop 5 C09 buildings 4 floors, C07 buildings 2 floors, C08 buildings 3 floors 4 floors, C04 buildings 1 floors Patentee before: SHENZHENSHI YUZHAN PRECISION TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address |