CN205291606U - Printing head and three -dimensional printer - Google Patents
Printing head and three -dimensional printer Download PDFInfo
- Publication number
- CN205291606U CN205291606U CN201521087506.7U CN201521087506U CN205291606U CN 205291606 U CN205291606 U CN 205291606U CN 201521087506 U CN201521087506 U CN 201521087506U CN 205291606 U CN205291606 U CN 205291606U
- Authority
- CN
- China
- Prior art keywords
- spout
- nozzle
- expanded bore
- printhead
- trunnion
- 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
Abstract
The utility model relates to a three -dimensional inkjet printer beats printer head, including heating piece, with heating piece fixed connection's choke and nozzle, still include the indisputable fluorine dragon pipe that lies in the choke with the choke coaxial line with setting up, the fusion tube of nozzle is setting up the hole of describing for outside expansion being close to the spout section. The fuse that can effectively avoid extruding improves the printing precision around adhering to, condense the spout, guarantees the shaping effect of three -dimensional body. The utility model provides a contain the above -mentioned three -dimensional inkjet printer who beats printer head.
Description
Technical field
This utility model relates to the parts of a kind of rapid molding device and comprises the rapid molding device of these parts, particularly to a kind of printhead for fusion sediment type rapid molding device and the three-dimensional printer comprising this printhead.
Background technology
Three-dimensional printer, is a kind of based on mathematical model, utilizes powdery metal or plastic or other material, constructed the equipment of three-dimensional body by the mode successively printed. One of which three-dimensional printer is to supply moulding material with the form of filament to printhead, moulding material is heated to molten condition in electrically heated mode in printhead, and three-dimensional body is printed in the path that the printhead opposed substrate produced according to the controller of three-dimensional printer moves by printhead in the way of in layer.
Notification number is a kind of three-dimensional printer supplying moulding material with filament form to printhead described in the background technology of the patent documentation of CN1216726C, referring to Fig. 1, reel 0121 is wound with filament 0123, the printhead of three-dimensional printer this reel 0121 is mounted in the rotating shaft 0122 of reel installing rack of three-dimensional printer, thus can be realized being supplied to filament 0123. in use, filament 0123 is pulled out from reel 0121, make the filament the being straightened conduit 013 by being made up of the material that frictional resistance is less, until the feed arrangement 011 filament being supplied on printhead, feed arrangement 011 includes motor 0118 and a pair feed roller 0116 and 0117 driven by motor 0118, under the driving of feed roller 0116 and 0117, filament enters in heat block 0111, filament is heated one-tenth molten condition in heat block 0111, the moulding material of molten condition is under the effect of follow-up filament thrust, extrude from the nozzle 0112 being located at heat block 0111 end and be removably deposited on printing supporting plate, the controller of this three-dimensional printer moves in the X-Y plane of level by controlling printhead, control to print supporting plate in vertical Z-direction motion simultaneously, in the programme-control of three-dimensional printer, first object is carried out Slice by slice cutting, the pre-set printing path of each layer, thus in layer print three-dimensional body, additionally, the controller of this three-dimensional printer also control feed roller 0116 and 0117 supplies the speed of filament to heat block 0111.
As shown in Figure 9, the printhead of existing three-dimensional printer is axially including union joint 0115, trunnion 0114, heat block 0111 and nozzle 0112 from top to bottom successively, there is in nozzle 0112 fusion tube 01122, for storing melted moulding material, it is expressed into printing supporting plate from spout 01123 after moulding material is melted, Teflon pipe 0113 it is provided with in trunnion 0114, Teflon pipe 0113 is capable of withstanding high temperature and smooth surface, the process of conveying moulding material can play heat insulation and lubrication effect, make moulding material move down smoothly.
Referring to Figure 10 and Figure 11 (a)-(c), above-mentioned printhead is thin straight hole 01121 due to a section of nearly spout 01123, after moulding material is extruded from spout 01123, the fuse temperature difference is big, bounce back under the effect of internal stress F, it is easy to deformation retracts to spout 01123 peripheral location such as Figure 11 (c) and shows, cause that the fuse of extrusion condenses upon around spout 01123, and easily cumulative, affect the actual molding effect of printing precision and three-dimensional body. Additionally, the Teflon pipe 0113 of above-mentioned printhead and trunnion 0114 adopt the version that plane is docked with nozzle 0112, this joint is positioned at the inside of heat block 0111, cannot guaranteeing during installation that Teflon pipe 0113 and trunnion 0114 are tight with docking of nozzle 0112, often there is less desirable spillover at joint in therefore melted moulding material.
Utility model content
Main purpose of the present utility model is to provide a kind of printhead that can effectively prevent extrusion fuse from assembling around spout;
Of the present utility model being also an object that provides a kind of printhead being also avoided that spillover occurs;
Another main purpose of the present utility model is to provide a kind of three-dimensional printer that can effectively prevent extrusion silk from assembling around spout;
A further object of the present utility model is to provide a kind of three-dimensional printer being also avoided that spillover occurs.
The printhead that this utility model provides includes heat block, fixes the trunnion being connected and nozzle with heat block, also includes being configured to be positioned at the Teflon pipe of trunnion with trunnion coaxial line, and the fusion tube of nozzle is being set to expand outwardly the hole of shape near spout section.
From such scheme, after moulding material is extruded from spout, owing to the temperature of external environment is low, the effect deformation retraction of internal stress it is subject to after fuse chance is cold, in nozzle, nearly nozzle is expanded bore, and the fuse of retraction is accommodated in expanded bore, can be prevented effectively from the fuse attachment of extrusion, agglomerate to around spout, improve printing precision, to guarantee the molding effect of three-dimensional body.
One preferred scheme is, expanded bore is the rotary space that straight line section rotates about the axis formation, and more big from the radius of the position expanded bore more nearby of spout.
Another preferred scheme is, expanded bore is the rotary space that a curved section rotates about the axis formation, and more big from the radius of the position expanded bore more nearby of spout.
Another preferred scheme is that expanded bore is the rotary space that a broken line rotates about the axis formation, and more big from the radius of the position expanded bore more nearby of spout.
For realizing another purpose of the present utility model, it is preferred that scheme be that the end of Teflon pipe grows trunnion, stretch into nozzle and coordinate or interference fit with nozzle small?gap suture.
As can be seen here, the end of Teflon pipe stretches into nozzle, adopts small?gap suture or even interference fit between the two, and the moulding material to be prevented effectively from molten condition overflows from trunnion and Teflon pipe with nozzle junction.
The three-dimensional printer that this utility model provides includes printhead, printhead includes heat block, fixing the trunnion being connected and nozzle with heat block, also include being configured to be positioned at the Teflon pipe of trunnion with trunnion coaxial line, the fusion tube of nozzle is being set to expand outwardly the hole of shape near spout section.
One preferred scheme is, expanded bore is the rotary space that straight line section rotates about the axis formation, and more big from the radius of the position expanded bore more nearby of spout.
Another preferred scheme is, expanded bore is the rotary space that a curved section rotates about the axis formation, and more big from the radius of the position expanded bore more nearby of spout.
Another preferred scheme is that expanded bore is the rotary space that a broken line rotates about the axis formation, and more big from the radius of the position expanded bore more nearby of spout.
It is preferred that scheme be that the end of Teflon pipe grows trunnion, stretch into nozzle and coordinate or interference fit with nozzle small?gap suture.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of existing three-dimensional printer;
Fig. 2 is the axonometric chart of this utility model three-dimensional printer embodiment;
Fig. 3 is the STRUCTURE DECOMPOSITION figure of this utility model printhead embodiment;
Fig. 4 is the sectional view of this utility model printhead first embodiment;
Fig. 5 is A partial enlarged drawing in Fig. 4;
Fig. 6 (a)-(b) is the schematic diagram of this utility model printhead first embodiment fuse retraction process;
Fig. 7 (a)-(b) is the partial enlarged drawing of the nearly spout section of this utility model printhead the second embodiment;
Fig. 8 is the partial enlarged drawing of the nearly spout section of this utility model printhead the 3rd embodiment;
Fig. 9 is the sectional view of the printhead of a kind of existing three-dimensional printer;
Figure 10 is B partial enlarged drawing in Fig. 9;
Figure 11 (a)-(c) is the schematic diagram of the fuse retraction process of Fig. 9 printhead;
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Detailed description of the invention
Printhead first embodiment:
Referring to Fig. 3 and Fig. 4, the printhead 11 of the present embodiment includes heat block 111, with the fixing trunnion 114 being connected of heat block 111 and nozzle 112, and it is configured to be positioned at the Teflon pipe 113 of trunnion 114 with trunnion 114 coaxial line, the fusion tube 1122 of nozzle 112 is being set to expand outwardly the taper hole 1121 of shape near spout 1123 sections, taper hole 1121 rotates about the axis the rotary space of formation for straight line section, and more big from the radius of the position taper hole 1121 more nearby of spout 1123.
Referring to Fig. 5 and Fig. 6, the nearly spout section of the present embodiment printhead is set to taper hole 1121, expanding outwardly near spout 1123 place, after moulding material is extruded from spout 1123, owing to the temperature of external environment is low, the effect deformation retraction of internal stress F it is subject to after fuse chance is cold, the existence at inclination angle, nearly spout 1123 place in nozzle 112, the fuse making retraction is accommodated in taper hole 1121 as Fig. 6 (b) shows, fuse is avoided to gather around spout 1123, thus improving printing precision, it is ensured that the molding effect of three-dimensional body.
Referring to Fig. 4, the end of Teflon pipe 113 grows trunnion 114, stretches into nozzle 112, and and between nozzle 112, adopt small?gap suture even interference fit, the moulding material to be prevented effectively from molten condition overflows from trunnion 114 and Teflon pipe 113 with nozzle 112 junction. Alternatively, the materials such as polylactic acid (PLA), acrylonitrile-butadiene-styrene (ABS) (ABS) selected by moulding material.
Printhead the second embodiment:
As the explanation of this utility model printhead the second embodiment, only the difference with above-mentioned printhead first embodiment is explained below.
Such as Fig. 7 (a) and 7(b) shown in, the fusion tube of nozzle is the rotary space that a curved section rotates about the axis formation in the expanded bore arranged near spout section, and expanded bore radius is more big more nearby in the position from spout.
Printhead the 3rd embodiment:
As the explanation of this utility model printhead the 3rd embodiment, only the difference with above-mentioned printhead first embodiment is explained below.
As shown in Figure 8, the fusion tube of nozzle is the rotary space that a broken line rotates about the axis formation in the expanded bore arranged near spout section, and expanded bore radius is more big more nearby in the position from spout.
Three-dimensional printer first embodiment:
Referring to Fig. 2 and Fig. 4, the three-dimensional printer 1 of the present embodiment includes framework 10, controller, prints supporting plate 14 and is arranged on the printhead 11 on movable bracket 15.The track that the printhead 11 that printhead 11 produces according to the controller of three-dimensional printer 1 moves relative to printing supporting plate 14, prints three-dimensional body printing on supporting plate 14 in the way of in layer. Printhead 11 includes heat block 111, with the fixing trunnion 114 being connected of heat block 111 and nozzle 112, and it is configured to be positioned at the Teflon pipe 113 of trunnion 114 with trunnion 114 coaxial line, the fusion tube 1122 of nozzle 112 is being set to expand outwardly the taper hole 1121 of shape near spout 1123 sections, taper hole 1121 rotates about the axis the rotary space of formation for straight line section, and more big from the radius of the position taper hole 1121 more nearby of spout 1123.
The end of Teflon pipe 113 grows trunnion 114, stretches into nozzle 112, and and between nozzle 112, adopt small?gap suture even interference fit, the moulding material to be prevented effectively from molten condition overflows from trunnion 114 and Teflon pipe 113 with nozzle 112 junction.
Three-dimensional printer the second embodiment:
As the explanation of this utility model three-dimensional printer the second embodiment, only the difference with above-mentioned three-dimensional printer first embodiment is explained below. Wherein printhead is the printhead in above-mentioned printhead the second embodiment.
The fusion tube of nozzle is the rotary space that a curved section rotates about the axis formation in the expanded bore arranged near spout section, and expanded bore radius is more big more nearby in the position from spout.
Three-dimensional printer the 3rd embodiment:
As the explanation of this utility model printhead the 3rd embodiment, only the difference with above-mentioned three-dimensional printer first embodiment is explained below. Wherein printhead is the printhead in above-mentioned printhead the 3rd embodiment.
The fusion tube of nozzle is the rotary space that a broken line rotates about the axis formation in the expanded bore arranged near spout section, and expanded bore radius is more big more nearby in the position from spout.
The nearly spout section of fusion tube of print-head nozzle is mainly set to expanded bore by design of the present utility model, it is possible to effectively prevent extrusion fuse from assembling around spout and affecting print quality; Multiple apparent change is also had according to this design, the structure of printhead and the shape of expanded bore.
Claims (10)
1. printhead, including heat block;
The trunnion and nozzle that are connected is fixed with described heat block;
It is configured to be positioned at the Teflon pipe of described trunnion with described trunnion coaxial line;
It is characterized in that:
The nearly spout section of fusion tube of described nozzle is expanded bore.
2. printhead according to claim 1, it is characterised in that:
Described expanded bore is that straight line section rotates the rotary space formed around described axis, and more big from the radius of the position described expanded bore more nearby of described spout.
3. printhead according to claim 1, it is characterised in that:
Described expanded bore is that a curved section rotates the rotary space formed around described axis, and more big from the radius of the position described expanded bore more nearby of described spout.
4. printhead according to claim 1, it is characterised in that:
Described expanded bore is that a broken line rotates the rotary space formed around described axis, and more big from the radius of the position described expanded bore more nearby of described spout.
5. the printhead according to any one of Claims 1-4, it is characterised in that:
The end of described Teflon pipe grows described trunnion, stretches into described nozzle, and coordinates or interference fit with described nozzle small?gap suture.
6. three-dimensional printer, including printhead, described printhead includes heat block;
The trunnion and nozzle that are connected is fixed with described heat block;
It is configured to be positioned at the Teflon pipe of described trunnion with described trunnion coaxial line;
It is characterized in that:
The nearly spout section of fusion tube of described nozzle is expanded bore.
7. three-dimensional printer according to claim 6, it is characterised in that:
Described expanded bore is that straight line section rotates the rotary space formed around described axis, and more big from the radius of the position described expanded bore more nearby of described spout.
8. three-dimensional printer according to claim 6, it is characterised in that:
Described expanded bore is that a curved section rotates the rotary space formed around described axis, and more big from the radius of the position described expanded bore more nearby of described spout.
9. three-dimensional printer according to claim 6, it is characterised in that:
Described expanded bore is that a broken line rotates the rotary space formed around described axis, and more big from the radius of the position described expanded bore more nearby of described spout.
10. the three-dimensional printer according to any one of claim 6 to 9, it is characterised in that:
The end of described Teflon pipe grows described trunnion, stretches into described nozzle, and coordinates or interference fit with described nozzle small?gap suture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521087506.7U CN205291606U (en) | 2015-12-22 | 2015-12-22 | Printing head and three -dimensional printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521087506.7U CN205291606U (en) | 2015-12-22 | 2015-12-22 | Printing head and three -dimensional printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205291606U true CN205291606U (en) | 2016-06-08 |
Family
ID=56472184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521087506.7U Active CN205291606U (en) | 2015-12-22 | 2015-12-22 | Printing head and three -dimensional printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205291606U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105459402A (en) * | 2015-12-22 | 2016-04-06 | 珠海天威飞马打印耗材有限公司 | Printing head and three-dimensional printer |
| US20190001568A1 (en) * | 2015-12-30 | 2019-01-03 | Revitek Co., Ltd. | Biological printer |
-
2015
- 2015-12-22 CN CN201521087506.7U patent/CN205291606U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105459402A (en) * | 2015-12-22 | 2016-04-06 | 珠海天威飞马打印耗材有限公司 | Printing head and three-dimensional printer |
| US20190001568A1 (en) * | 2015-12-30 | 2019-01-03 | Revitek Co., Ltd. | Biological printer |
| US10828830B2 (en) * | 2015-12-30 | 2020-11-10 | Revotek Co., Ltd | Bioprinter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3401081B1 (en) | Three-dimensional modeling apparatuses and methods for fabricating three-dimensional objects | |
| US10065360B2 (en) | Additive manufacturing apparatus | |
| CN206264352U (en) | The printhead adjustment structure of 3D printer | |
| CN104582971B (en) | For the print-head nozzle being used together with increasing material manufacturing system | |
| CN103895223B (en) | Printhead and three-dimensional printer | |
| US10350821B2 (en) | Method and system for manufacturing a three-dimensional object by additive manufacturing | |
| CN103876263A (en) | Three-dimensional printer for printing liquid materials | |
| CN104369385A (en) | Printing head of 3D (three-dimensional) printer | |
| US11618207B2 (en) | Systems and methods for printing 3-dimensional objects from thermoplastics | |
| CN104014793A (en) | Extrusion-type metal flow 3D printer | |
| CN205291606U (en) | Printing head and three -dimensional printer | |
| US20200338822A1 (en) | Multi-hotend nozzle extruder assembly device | |
| JP6527539B2 (en) | Three-dimensional printing method and three-dimensional printing apparatus | |
| CN105459402A (en) | Printing head and three-dimensional printer | |
| CN104999669B (en) | 3 D-printing shower nozzle, three-dimensional printer and Method of printing | |
| CN209409314U (en) | A kind of multi-head printer structure of 3D printer | |
| CN203779870U (en) | Printing head and three-dimensional printer | |
| CN103692776B (en) | A kind of 3D printing device | |
| EP3339002B1 (en) | Fused filament fabrication machine | |
| CN203801631U (en) | Heat-preservation injection pipe type three-dimensional chocolate printing equipment | |
| CN205167573U (en) | Can dismantle and prevent stopping up 3D printing shower nozzle | |
| CN106881865B (en) | Molten copper infiltration 3D printing spray head | |
| CN204585856U (en) | Printhead and three-dimensional printer | |
| CN204505863U (en) | A kind of ejecting device for 3D printer | |
| JP6158059B2 (en) | Injection molding machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220915 Address after: Room 103-036, 1st Floor, Building 1, No. 18, Futian Road, Xiangzhou District, Zhuhai City, Guangdong Province, 519000 (centralized office area) Patentee after: Zhuhai Tianwei Additives Co.,Ltd. Address before: 519060 Guangdong province Zhuhai Nanping Science and Technology Industrial Park, ping North Road No. 32 Patentee before: PRINT RITE UNICORN IMAGE PRODUCTS Co.,Ltd. OF ZHUHAI |
|
| TR01 | Transfer of patent right |