CN204749281U - 3D printer and silo thereof - Google Patents
3D printer and silo thereof Download PDFInfo
- Publication number
- CN204749281U CN204749281U CN201520358099.2U CN201520358099U CN204749281U CN 204749281 U CN204749281 U CN 204749281U CN 201520358099 U CN201520358099 U CN 201520358099U CN 204749281 U CN204749281 U CN 204749281U
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- Prior art keywords
- hopper
- platform
- type base
- film
- stained
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Abstract
The utility model relates to a 3D printer and silo thereof, wherein, the silo includes: both ends be uncovered form the groove frame, be not stained with the peaceful desk -top base of film, opening end one side of groove frame is fixed on the cover has the platform formula base of not being stained with the film, platform formula base is equipped with the air vent in by the region of groove frame inner wall restriction.
Description
Technical field
The utility model relates to 3D printing technique field, is specifically related to a kind of 3D printer and hopper thereof.
Background technology
Liquid 3D printing technique is the one increasing material manufacturing technology of carrying out 3D printing with fluent material, its general principle is: the fluent material being used as to print run into the light source of ultraviolet or other wavelength, ray irradiation time, curing reaction can be there is and become solid-state by liquid state in irradiated part, scanning pattern or the exposure shape of light source is accurately controlled with computer, can obtain with scanning pattern or expose the identical printer model of shape, successively or the printable layer that solidified of Continuous accumulation can obtain a complete 3D solid.Liquid 3D printing technique is divided into light projector and lower light projector two kinds, and upper light projector technology light source is above fluent material, and curing reaction occurs in fluent material upper surface.Lower light projector technology light source is in liquid container (hopper) bottom, curing reaction occurs in container bottom, need the part of having solidified after having solidified one deck from stripping bottom hopper and the demoulding to carry out the printing of lower one deck, this printing technique has strict requirement to the material used bottom hopper and printing technique itself, if directly use the material such as acrylic or glass bottom hopper, printable layer after solidification can be bonded in acrylic or glass surface is difficult to peel off, cause and print unsuccessfully, therefore certain technological means must be adopted to carry out demoulding process.Existing ejection technique on the acrylic or glass negative of container bottom, applies the anti-stick coatings such as one deck silica gel or Teflon be bonded at bottom hopper to prevent printable layer.But study through the utility model people and find that the demolding performace of this stripping means is decayed quickly, through experiment, the region printed after printing 3000 multilayer just there will be the phenomenon of atomization (turning white), pellosil stripping result after atomization significantly reduces and loses removal very soon, and the liquid that general pellosil prints 1L ~ 2L just can lose demoulding effect.Simultaneously in order to the requirement of satisfied printing, adherent layer must thickness evenly, surfacing, can not contain lighttight impurity, this has very strict requirement to moulding process and environment, just professional equipment and experienced skilled worker must be had to fulfil assignment.In addition, when using prior art to carry out lower light projector 3D printing, due to the shrinkage of capillarity and material, vacuum can be produced bottom printable layer and hopper, and bottom current lower light projector hopper often with lucite, acrylic or quartz glass for base coated film forms, bottom hopper, rigidity not easily occurs bending and deformation comparatively greatly, due to the pressure that air and liquid cause, if shaped platform directly rise be difficult to by printable layer and hopper bottom part from, and rigid disengaging can cause damage to model and cause printing unsuccessfully.Therefore, existing lower light projector printing technique often increases a set of additional slant-pull structure and is used for assisted demoulding, this mechanical device can make printable layer and carry out bottom hopper being peel off gradually from edge when being separated, the smooth demoulding is conducive to although do like this, but also make print speed greatly reduce, simultaneously owing to introducing the frame for movement of assisted demoulding, Whole Equipment is made to become complicated.Also have bottom the hopper of portion of techniques scheme is use flexible material to make, on fexible film, such as plate the scheme of pellosil, but this technology will ensure flatness, the light transmission of Silicon moulds, also there is low problem of above-mentioned complex manufacturing technology, the life-span mentioned.And this scheme also has a very large defect to be, because pellosil and substrate are all flexible, after adding liquid printed material, just can not remain smooth bottom hopper and the phenomenon of tenesmus occurs, this can have a huge impact the precision printed.
Mainly there is lower column defects in existing 3D liquid printing technique in sum:
Prior art hopper is easy to lose efficacy, and the life-span is short; Prior art hopper stripping result is bad, because base material is rigidity greatly not easily deformation occurs, causing can not direct demold, needs to increase Aided Machine structure; It is smooth that prior art hopper is difficult to ensure bottom hopper, affects printing precision; Prior art due to will bottom hopper plated film, processing technology is complicated.
Utility model content
The purpose of this utility model is to overcome defect of the prior art, design a kind of flatness bottom hopper and hard of can ensureing, can ensure again to depart from gradually bottom printer model and hopper, and structure is simple, is easy to lower light projector 3D printer and the hopper thereof of operation.
For achieving the above object, the utility model have employed following technical scheme:
The utility model embodiment provides a kind of hopper of 3D printer, this hopper comprises: two ends be uncovered shape groove frame, be not stained with film and platform-type base, the opening end side of described groove frame is fixed on to be coated with is not stained with on the platform-type base of film, is provided with passage in the region that described platform-type base is limited by groove frame inwall.
In such scheme, described platform-type base comprises: base plate and support, and base plate is arranged on support, when hopper is placed on hopper pallet, leaves space between base plate and hopper pallet; Described passage is arranged in the soleplate near the region of bottom edge.
In such scheme, described groove frame is provided with the groove for embedding platform-type base in the side being fixed with platform-type base, the mating surface of groove and platform-type base is provided with seal groove, and seal groove, built with sealing ring, is not stained with film for compression and is slided to prevent it.
In such scheme, looping chimb on the inwall of described groove frame, it corresponds to a side of described groove, and described groove is connected by being closely fastened with described platform-type base, or is fixedly connected with by securing member; And/or
The outer wall of groove frame is provided with chimb, is connected by being closely fastened with described platform-type base, or is fixedly connected with by securing member.
In such scheme, the described material not being stained with film is fluoride articles Films; The described thickness not being stained with film is 0.01mm ~ 10mm.
In such scheme, described passage is evenly distributed on the periphery of base plate, and makes passage be positioned at the scuncheon of described support.
In such scheme, the material of described base plate is acrylic or quartz glass.
In such scheme, the inwall of described groove frame 1 adheres to one deck adhesive.
The utility model also provides a kind of 3D printer, comprises any one hopper according to such scheme in this 3D printer, and described hopper is positioned at the top of scanning or projection light source, the below of shaped platform.
Accompanying drawing explanation
Fig. 1 is the perspective view of the 3D printer hopper that the utility model embodiment provides;
Fig. 2 a to Fig. 2 b is schematic cross-section and the perspective view of the platform-type base of the 3D printer hopper that the utility model embodiment provides;
Fig. 3 is the decomposition texture schematic diagram of the another kind of 3D printer hopper that the utility model embodiment provides;
Fig. 4 is the main sectional view of Fig. 3;
Fig. 5 is the structural representation of the 3D printer hopper that provides of the utility model embodiment at print state;
Fig. 6 is the structural representation of 3D printer hopper in knockout course that the utility model embodiment provides;
In figure:
1, groove frame; 1-1, groove; 1-2, seal groove; 1-3, annular nib; 1-4, chimb;
2, film is not stained with;
30, platform-type base;
---3, base plate; 3-1, passage;
---4, support; 4-1, bulge loop;
5, sealing ring;
6, fluent material;
7, shaped platform;
8, printer model.
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection domain of the present utility model with this.
As shown in Figure 1, Figure 2 shown in a and Fig. 2 b, the utility model provides a kind of hopper of 3D printer, it comprises: two ends be uncovered shape groove frame 1, be not stained with film 2 and platform-type base 30, the opening end side of groove frame 1 is fixed on to be coated with and is not stained with on the platform-type base 30 of film 2, is provided with passage 3-1 in the region that platform-type base 30 is limited by groove frame 1 inwall.Wherein, be not stained with the upper surface that film 2 covers platform-type base 30, be not really pasted together though fit tightly, the separation of certain limit can occur.
Be not stained with the fexible film that film 2 is semi-permeability, it is chemical inertness to printed material and does not glue, it can not react with printed material, printable layer can be prevented to be bonded at bottom hopper, not being stained with film 2 can be fluoride goods or other non-adhesive materials, be specifically as follows the fluoride such as FEP, Teflon AF2400, PTFE, its thickness is in 0.01-10mm scope; Secondly, not being stained with film 2 is semi-permeabilities, especially for oxygen, its effect has two, and one is prevent from producing vacuum bottom printable layer and hopper, causes demoulding difficulty, when printing, gas can enter bottom hopper through not being stained with film 2 by passage 3-1 again, avoids producing vacuum; Another one effect is, oxygen can stop resin and ultraviolet to solidify, control well through the amount of oxygen not being stained with film 2, just a very thin uncured liquid level can be formed bottom hopper and between printable layer, prevent printable layer to be bonded in bottom hopper further, be more conducive to the demoulding.
This material of not being stained with the region that film 2 and platform-type base 30 are limited by groove frame 1 inwall all should can pass through light projector ray.Here, light projector ray refers to: 3D printer such as, for making the projection light of the fluent material solidifications such as photosensitive resin, ultraviolet.
Platform-type base 30 is not stained with film 2 after can preventing adding liquid in hopper can not maintain smooth and central tenesmus, can also prevent not being stained with the damaged liquid printed material later of film 2 and leak.
Platform-type base can be integrated, also can be divided into two parts, and as shown in Fig. 3 to 6, platform-type base comprises: base plate 3 and frame type support 4; Wherein, base plate 3 is arranged on support 4, when on the hopper pallet that hopper is placed on 3D printer, leaves space between base plate 3 and hopper pallet; Described passage 3-1 is arranged on the region near bottom plate frame in base plate 3.
Base plate 3 should be selected and can pass through light projector ray and the good material of rigidity; As long as but the good material of support 4 rigidity, therefore, platform-type base is divided into two parts, the two is selectable wider in material, better can give prominence to respective requirement.Namely can be base plate 3 to select the better rigid of light projector radiation transparent, and be that support 4 chooses rigidity more by force but do not have the material of light projector radiation transparent.
The material of base plate 3 can be acrylic or quartz glass.
Preferably, described passage 3-1 is evenly distributed on the periphery of base plate 3, and makes passage 3-1 be positioned at the scuncheon of described support 4.
Further, described groove frame 1 is provided with the groove 1-1 for embedding platform-type base 30 in the side being fixed with platform-type base 30, the mating surface of groove 1-1 and platform-type base 30 is also provided with seal groove 1-2, seal groove 1-2, built with sealing ring 5, is not stained with film 2 for compression and prevents it from sliding.
Described laminating of not being stained with the upper surface of film 2 and platform-type base 30, held the side of platform-type base 30, then the bottom extending annular nib 1-3 is clamped on the upper surface of platform-type base 30 by sealing ring 5.
Further, looping chimb 1-3 on the inwall of described groove frame 1, it corresponds to a side of described groove 1-1, and described groove is connected by being closely fastened with described platform-type base, or is fixedly connected with by securing member; And/or
The outer wall of groove frame 1 is also provided with chimb 1-4, is connected by being closely fastened with described platform-type base 30, or is fixedly connected with by securing member.
When platform-type base 30 comprises base plate 3 and support 4, the side of described support 4 is provided with bulge loop 4-1, and the outer shroud of bulge loop 4-1 matches with the inward flange of annular nib 1-3, and the inner ring of bulge loop 4-1 matches with the side of base plate 3.The height of this bulge loop 4-1 is substantially identical with the thickness of the thickness of annular nib 1-3, base plate 3, can ensure that the bottom in hopper is smooth like this, and coordinates tight, can prevent the leakage of 3D printing fluid further.
Further, the hopper in such scheme, the inwall of groove frame 1 adheres to one deck adhesive, after printing can be facilitated to complete, cleans hopper.Described adhesive can be made up of fluoride or silica gel.
The hopper using the utility model to provide carries out the principle of the demoulding as shown in FIG. 5 and 6:
When needing after having printed one deck printer model to carry out demoulding, shaped platform 7 first upwards promotes; In conjunction with the gas pressure power of bottom, be not stained with film 2 and certain deformation occurs thereupon; The printed material of liquid declines at gravity and atmospheric effect and to flow to its center from the periphery bottom printer model 8, like this be not stained with film 2 and printer model 8 bottom part from be peel off gradually from edge, instead of disposable large area is separated, this mode be separated gradually from edge is flexible, both separation can have been made to become be more prone to, also can not damage printer model, this is then just contrary with large-area rigid separate mode simultaneously.Use this hopper to print, the slant-pull structure carrying out assisted demoulding in prior art can be saved, therefore greatly can shorten the time-write interval, and reduce the complexity of frame for movement.
The utility model creatively will not stand plastic film covering on the base of hopper, has satisfactorily resolved the planarization that should ensure bottom hopper and has made it have contradiction between certain flexibility again.The all building blocks of hopper are all select material that market can have been bought or standard component to process, and therefore the processing technology of whole hopper also becomes more simple, and cost is also cheaper, also very favourable to the popularization of technique.
The utility model also provides a kind of 3D printer, comprises any one hopper according to such scheme in this 3D printer, and described hopper is positioned at the top of scanning or projection light source, the below of shaped platform.
The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (9)
1. the hopper of a 3D printer, it is characterized in that comprising: two ends be uncovered shape groove frame, be not stained with film and platform-type base, the opening end side of described groove frame is fixed on to be coated with is not stained with on the platform-type base of film, is provided with passage in the region that described platform-type base is limited by groove frame inwall.
2. hopper as claimed in claim 1, it is characterized in that, described platform-type base comprises: base plate and support, and base plate is arranged on support, when hopper is placed on hopper pallet, leaves space between base plate and hopper pallet; Described passage is arranged in the soleplate near the region of bottom edge.
3. hopper as claimed in claim 1, it is characterized in that, described groove frame is provided with the groove for embedding platform-type base in the side being fixed with platform-type base, the mating surface of groove and platform-type base is provided with seal groove, seal groove, built with sealing ring, is not stained with film for compression and is slided to prevent it.
4. hopper as claimed in claim 3, is characterized in that, looping chimb on the inwall of described groove frame, and it corresponds to a side of described groove, and described groove is connected by being closely fastened with described platform-type base, or is fixedly connected with by securing member; And/or
The outer wall of groove frame is provided with chimb, is connected by being closely fastened with described platform-type base, or is fixedly connected with by securing member.
5. hopper as claimed in claim 1, it is characterized in that, the described material not being stained with film is fluoride articles Films; The described thickness not being stained with film is 0.01mm ~ 10mm.
6. hopper as claimed in claim 2, it is characterized in that, described passage is evenly distributed on the periphery of base plate, and makes passage be positioned at the scuncheon of described support.
7. hopper as claimed in claim 2, it is characterized in that, the material of described base plate is acrylic or quartz glass.
8. hopper as claimed in claim 1, is characterized in that, the inwall of described groove frame adheres to one deck adhesive.
9. a 3D printer, is characterized in that, comprises the hopper according to any one of claim 1 to 8 in this 3D printer, and described hopper is positioned at the top of scanning or projection light source, the below of shaped platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520358099.2U CN204749281U (en) | 2015-05-28 | 2015-05-28 | 3D printer and silo thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520358099.2U CN204749281U (en) | 2015-05-28 | 2015-05-28 | 3D printer and silo thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204749281U true CN204749281U (en) | 2015-11-11 |
Family
ID=54464031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520358099.2U Expired - Fee Related CN204749281U (en) | 2015-05-28 | 2015-05-28 | 3D printer and silo thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204749281U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104875391A (en) * | 2015-05-28 | 2015-09-02 | 北京大业三维科技有限公司 | 3D (three dimensional) printer and materials vessel thereof, and manufacturing method of materials vessel |
| CN105666878A (en) * | 2016-03-25 | 2016-06-15 | 广州丽格打印耗材有限公司 | Material groove for 3D printer |
| CN108688153A (en) * | 2018-06-26 | 2018-10-23 | 珠海天威飞马打印耗材有限公司 | Print head, three-dimensional printer and its Method of printing |
-
2015
- 2015-05-28 CN CN201520358099.2U patent/CN204749281U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104875391A (en) * | 2015-05-28 | 2015-09-02 | 北京大业三维科技有限公司 | 3D (three dimensional) printer and materials vessel thereof, and manufacturing method of materials vessel |
| CN105666878A (en) * | 2016-03-25 | 2016-06-15 | 广州丽格打印耗材有限公司 | Material groove for 3D printer |
| CN108688153A (en) * | 2018-06-26 | 2018-10-23 | 珠海天威飞马打印耗材有限公司 | Print head, three-dimensional printer and its Method of printing |
| CN108688153B (en) * | 2018-06-26 | 2024-04-19 | 珠海天威增材有限公司 | Printing head, three-dimensional printer and printing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 |