CN203254661U - Light-curing rapid forming apparatus - Google Patents
Light-curing rapid forming apparatus Download PDFInfo
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- CN203254661U CN203254661U CN 201220748903 CN201220748903U CN203254661U CN 203254661 U CN203254661 U CN 203254661U CN 201220748903 CN201220748903 CN 201220748903 CN 201220748903 U CN201220748903 U CN 201220748903U CN 203254661 U CN203254661 U CN 203254661U
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Abstract
Embodiments of the present invention disclose a light-curing rapid forming apparatus, which comprises: a carrying body for carrying a fluid state photosensitive resin, an imaging component for displaying a two-dimensional figure, and a light source for making the fluid state photosensitive resin be subjected to a polymerization reaction, wherein the transparent state of the region of the two-dimensional figure displayed by the imaging component and the transparent state of other regions in the imaging component range outside the two-dimensional figure are reverse, and the light source and the carrying body are positioned on the opposite sides of the imaging component. The utility model further discloses a light-curing rapid forming method, another light-curing rapid forming apparatus and a corresponding method. With the embodiments of the present invention, complexity of the light path is increased, and a light-curing rapid forming effect can be increased.
Description
Technical field
The application relates to rapid shaping technique field in the manufacturing industry, particularly relates to a kind of light solidifying quick forming device.
Background technology
Rapid shaping (Rapid Prototyping, RP) technology is an advanced manufacturing technology that grows up on the technical foundation such as Modern CAD/CAM technology, laser technology, computer numerical control technology, elaborate servo actuation techniques and new material.This technology is actively promoted effect as a key common technology of manufacturing business's new product development to promoting enterprise products innovation, shortening new product development cycle, raising product competitiveness.
Rapid shaping technique can be divided into plurality of classes according to the difference of using material, molding mode etc., wherein photocureable rapid shaping comparatively commonly.The principle of Stereolithography is: utilize the characteristics of photosensitive resin (UV) polymerization reaction take place under illumination of fluid state, the cross sectional shape of light source according to object to be formed shone, make the photosensitive resin curing molding of fluid state.At present, utilize the light solidifying quick forming device of the photosensitive resin curing molding making workpiece of fluid state mainly to comprise two kinds, be selective laser solidification equipment (Stereo lithography Appearance, SLA is called again the stereolithography apparatus device) and DLP mask light curring unit.The former adopts the laser galvanometer to scan X-Y scheme at the photosensitive resin of flow morphology, makes the resin solidification of exposure part adhere to the successively cumulative workpiece that forms; The latter adopts the DLP projecting apparatus to throw X-Y scheme at the photosensitive resin of flow morphology, makes the resin solidification of exposure part adhere to the successively cumulative workpiece that forms.Yet, these two kinds of light solidifying quick forming devices because or adopt the laser galvanometer, perhaps adopt the DLP projecting apparatus, and the light path of this two kinds of parts is complicated, existence has influence on the effect of photocureable rapid shaping than long delay, has reduced the efficient of photocureable rapid shaping.
The utility model content
For solving the problems of the technologies described above, the embodiment of the present application provides a kind of light solidifying quick forming device, to simplify the light path of photocureable rapid shaping, improves the effect of photocureable rapid shaping.
A kind of light solidifying quick forming device that the embodiment of the present application provides comprises: the supporting body that is used for the photosensitive resin of carrying fluid state, be used for representing the image-forming block of X-Y scheme, other regional pellucidities in the image-forming block scope outside the X-Y scheme region that described image-forming block represents and the X-Y scheme are opposite, and the light source that is used for making the photosensitive resin polymerization reaction take place of fluid state, described light source and described supporting body are positioned at described image-forming block heteropleural.
Preferably, described device also comprises the first moving-member and the first transfer unit, after described the first moving-member is used for the photosensitive resin curing molding of the fluid state in described supporting body, the photosensitive resin of curing molding is moved the first gap to the direction away from described light source, described the first transfer unit is used for carrying the photosensitive resin of new fluid state in described supporting body, to fill described the first gap, described the first gap is less than the curing depth of the photosensitive resin of fluid state.
Preferably, described device also comprises the second moving-member and the second transfer unit, after described the second moving-member is used for the photosensitive resin curing molding of the fluid state in described supporting body, described image-forming block is moved the second gap to the direction away from described supporting body, described the second transfer unit is used for carrying the photosensitive resin of new fluid state in described supporting body, to fill described the second gap, described the second gap is less than the curing depth of the photosensitive resin of fluid state.
Further preferably, the supporting body of described photosensitive resin for carrying fluid state is U-shaped container, described image-forming block be used to representing X-Y scheme is liquid crystal display, and the light source of described photosensitive resin polymerization reaction take place be used to making fluid state is the light source of wavelength in 350 to 400 nanometer range.
The embodiment of the present application also provides another kind of light solidifying quick forming device.This device comprises: the supporting body that is used for the photosensitive resin of carrying fluid state, be used for representing the image-forming block of X-Y scheme, other regional pellucidities in the image-forming block scope outside the X-Y scheme region that described image-forming block represents and the X-Y scheme are opposite, and the light source that is used for making the photosensitive resin polymerization reaction take place of fluid state, described light source and described supporting body are positioned at described image-forming block homonymy, described device also comprises reflection part, described reflection part is used for reflecting the light of described light source, makes the light of reflection can pass through the photosensitive resin that described image-forming block shine fluid state.
The light solidifying quick forming device that the embodiment of the present application provides comprises the supporting body of the photosensitive resin that carries fluid state, the light source that represents the image-forming block of two dimensional image and be used for the irradiation photosensitive resin, light source and supporting body are positioned at image-forming block heteropleural or homonymy, also comprise emission element during homonymy.Compared with prior art, because the light path part of the embodiment of the present application only is comprised of image-forming block and light source, position relationship is simple, has reduced the light path complexity of Light Curing, reduced optical path delayed, thereby improved the photocureable rapid shaping effect.In addition, the apparatus structure of the embodiment of the present application is succinct, number of components is few, has reduced the volume of light solidifying quick forming device, and the image-forming block of employing is for the laser galvanometer or DLP projecting apparatus of technology, and cost of manufacture is low, the use material is few.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, the accompanying drawing that the following describes only is some embodiment that put down in writing among the application, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the composition structural representation of a kind of light solidifying quick forming device embodiment of the application;
Fig. 2 is the composition structural representation of the application's another kind of light solidifying quick forming device embodiment;
Fig. 3 is the application's the process chart based on the described device embodiment of Fig. 1, Fig. 2;
Fig. 4 is the application's the process chart based on another light solidifying quick forming device embodiment.
The specific embodiment
In order to make those skilled in the art person understand better technical scheme among the application, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment only is the application's part embodiment, rather than whole embodiment.Based on the embodiment among the application, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all should belong to the scope of the application's protection.
Referring to Fig. 1, the figure shows the composition structure of the application's light solidifying quick forming device embodiment.This embodiment comprises: supporting body 101, image-forming block 102 and light source 103, and supporting body 101 and light source 103 are positioned at the heteropleural of image-forming block 102, wherein:
Supporting body 101, this supporting body is used for the photosensitive resin 100 of carrying fluid state, in the actual application, this supporting body can be the container with contained shape, such as U-shaped container, this is applicable to require the moulding object that the degree of depth is thick, the marginal portion is regular usually, also can be presented as the carrier of slab construction, and this is applicable to require the moulding object that the degree of depth is thin, area is large, main part is regular usually;
Image-forming block 102, these parts are used for representing the X-Y scheme in object to be formed cross section, the two dimensional image that is presented on the image-forming block can be divided into two connected regions usually, it is the zone within the image-forming block surface range outside the zone that comprises of X-Y scheme itself and the two dimensional image, the pellucidity in this two parts zone is opposite, namely comprise two kinds of situations: a kind of situation is that X-Y scheme partly is dark-coloured state (can not transmitted light), other parts are pellucidity (can transmitted ray), and another kind of situation is that X-Y scheme partly is pellucidity, other parts are dark-coloured state.The former is because dark-coloured part can not transmitted light, be tod not polymerization reaction take place by the photosensitive resin that this dark areas covers, can curing molding, other parts then can be solidified rapidly, this situation is applicable to make (hollow out) mould that contains X-Y scheme, and the moon that is similar to the Chinese character engraving is carved method; The latter is because dark-coloured part is the zone outside the X-Y scheme, this part zone does not have not polymerization reaction take place of illumination, is not cured, and other parts are solidified under illumination, this situation is applicable to make the workpiece of the shape of X-Y scheme own, is similar to the Yang Kefa of Chinese character engraving.It can be any physical equipment that can imaging during the image-forming block specific implementation of present embodiment, here the implication of " imaging " can be mechanical, such as, stick on the surface of image-forming block by artificial sectional view with target formed body to be formed, this is applicable to the scene of small-scale rapid shaping usually; It also can be electronics, such as producing control signal by automation equipment, go out two dimensional image in the surperficial imaging of image-forming block, common such as liquid crystal display, can control by circuit the shape of the X-Y scheme on the liquid crystal display, this more is applicable to the environment of large-scale rapid shaping.In addition, adopt liquid crystal display under existing technique, to have higher resolution ratio than laser galvanometer or DLP as image-forming block.
The operation principle of the Stereolithography device of present embodiment is: after light source 103 sends light, because there is different light and shade states in the X-Y scheme that image-forming block 102 represents from the zone outside the X-Y scheme, a light part that shines on the image-forming block 102 can shine on the photosensitive resin of fluid state through the transparent part in the image-forming block, the light that another part can not see through image-forming block can't shine on the photosensitive resin of fluid state, thereby so that two kinds of different change direction appear in the photosensitive resin of fluid state: the photosensitive resin of the fluid state that is shone by light solidifies polymerization reaction take place rapidly, the photosensitive resin of the fluid state that is not shone by light is polymerization reaction take place not, still keeps original state.If X-Y scheme is dark-coloured state, through behind the said process, will present the curing photosensitive resin formed body that contains X-Y scheme; If two dimensional image is pellucidity, through behind the said process, direct imaging is gone out the curing photosensitive resin formed body of X-Y scheme.
The light solidifying quick forming device of present embodiment comprises the supporting body of the photosensitive resin that carries fluid state, the light source that represents the image-forming block of two dimensional image and be used for the irradiation photosensitive resin, and light source and supporting body are positioned at the image-forming block heteropleural.Compared with prior art, present embodiment can be obtained the technique effect of following three aspects: at least: (1) is owing to the light path part in the present embodiment realization photocureable rapid shaping process only is comprised of image-forming block and light source, position relationship is simple, reduced the light path complexity of Light Curing, reduced optical path delayed, and reduced the optical parallaxs such as the aberration that insertion light path element (such as lens, speculum) brings, distortion, thereby improved the photocureable rapid shaping effect.(2) device of present embodiment comprises three building blocks, and it is simple for structure, number of components is few, has reduced the cumulative volume of light solidifying quick forming device.(3) image-forming block of the device of present embodiment employing is for the laser galvanometer or DLP projecting apparatus of technology, and cost of manufacture is low, the use material is few.
Need to prove, in actual application, it is " one " that the supporting body 101 of above-described embodiment and image-forming block 102 can close " two ", make parts, that is: make image-forming block simultaneously as the supporting body of the photosensitive resin that carries fluid state, perhaps make the supporting body of the photosensitive resin of carrying fluid state have simultaneously the function that represents X-Y scheme.Similarly, the light source 103 of above-described embodiment and image-forming block 102 can also be closed " two " is " one ", make parts, that is: the X-Y scheme that image-forming block is represented have simultaneously luminous function (such as, adopt the plasma electrons screen), perhaps, make light source present X-Y scheme image (such as, luminance to a plurality of light source cells is controlled, and makes the integral body of these light source cells present X-Y scheme).
Although the scheme of above-described embodiment can realize the application's goal of the invention, but, in actual application, not only need to produce the curing molding body of the flake structure of " X-Y scheme " form, and more demand is to make the curing molding body of " three-dimensional structure " of three-dimensional shape.The curing molding body of " three-dimensional structure " can be regarded as by the accumulation of a plurality of X-Y schemes cross section and pastes and form, and the process continuous circulation of above-mentioned moulding can be carried out can realize this purpose like this.For this reason, the application also preferably includes moving-member and transfer unit, moving-member is used for producing new space, in this space, inject the photosensitive resin of new fluid state, then carry out above-mentioned During Illumination, the curing molding body again occurs, this curing molding body sticks on the curing molding body of last time, repeatedly carry out such operation, can obtain the curing molding body of the three-dimensional structure of needs.The moving-member here and transfer unit can adopt multiple specific implementation, and the below enumerates dual mode and is explained:
One of mode: referring to Fig. 2, on the basis of said apparatus embodiment, further comprise the first moving-member 204 and the first transfer unit 205 (thereby another light solidifying quick forming device embodiment of formation the application, the parts identical with previous embodiment respectively label are supporting body 201, image-forming block 202, light source 203, the photosensitive resin 200 of fluid state), after the first moving-member 104 is used for the photosensitive resin curing molding of the fluid state in supporting body, the photosensitive resin of curing molding is moved the first gap to the direction away from light source, the first transfer unit 105 is used for carrying the photosensitive resin of new fluid state in supporting body, to fill described the first gap.Moving-member in the manner can show as a machinery mount, transfer unit also can show as mechanical driving device, here the curing depth less than the photosensitive resin of fluid state is selected in " the first gap " usually, so that the photosensitive resin of the fluid state that injects can access sufficient curing.In actual application, except this constraints to " gap ", also may strengthen restriction to this gap according to the purpose difference of further realization: be the effect of curing molding if emphasis considers, under the condition that satisfies less than the curing depth of photosensitive resin, this gap can be as far as possible little, make photocuring each " layer " thin as much as possible, thereby can improve resolution ratio and the precision of moulding on the one hand, make on the one hand " layer " and " layer " adhesion more firm, strengthen the stability of 3-D solid structure; If what emphasis was considered is the speed of curing molding, under the condition that satisfies less than the curing depth of photosensitive resin, this gap can be large as far as possible, make photocuring each " layer " thick as far as possible, thereby the number of times of photocuring of formed body of the 3-D solid structure of moulding equal height is tailed off, improve the bulk velocity of photocuring.
Two of mode: on the basis of said apparatus embodiment, further comprise the second moving-member and the second transfer unit, after the second moving-member is used for the photosensitive resin curing molding of the fluid state in described supporting body, image-forming block is moved the second gap to the direction away from described supporting body, the second transfer unit is used for carrying the photosensitive resin of new fluid state in described supporting body, to fill described the second gap, described the second gap is less than the curing depth of the photosensitive resin of fluid state.The moving direction of this mode and first kind of way is opposite, this be consider in actual applications may mobile load bearing fluid state photosensitive resin supporting body more difficult than mobile imaging parts, therefore, take the easier realization of mode of mobile imaging parts.
Above-mentioned on first embodiment basis improved embodiment can produce the formed body of 3-D solid structure, and the shape of moulding is not carried out any restriction, in fact, when industry manufactures body, not only need to make each cross section all identical formed body (such as, the cylinder-type formed body), also need to make each cross section all different formed body (such as, the calabash shape formed body), under latter instance, also need to change the X-Y scheme (being the sectional view of target formed body) that presents in the image-forming block, at this moment can export different X-Y schemes to profiled part by general control circuit, thereby obtain having the target formed body of different cross section.
Foregoing has been described in detail the composition structure of the application's light solidifying quick forming device embodiment, is described in detail below in conjunction with the course of work of accompanying drawing to this device embodiment.Referring to Fig. 3, the figure shows the course of work of the application's light solidifying quick forming device.This course of work comprises:
Step S301: the photosensitive resin that injects fluid state in the supporting body of photosensitive resin of carrying fluid state, represent X-Y scheme at the image-forming block that represents X-Y scheme, other the regional pellucidities in the image-forming block scope outside the X-Y scheme region that described image-forming block represents and the X-Y scheme are opposite;
This step comprises two sub-steps: inject photosensitive resin and the step that represents X-Y scheme, these two steps all are to finish the steps necessary of photocureable rapid shaping, but, because they all belong to two preparatory steps of Stereolithography, the application does not limit their execution sequence, can inject first the step of photosensitive resin, can represent first the step of X-Y scheme yet, perhaps two are carried out simultaneously, and this depends on the factor of considering in the actual application and the environment that faces.
Step S302: use the described image-forming block of light source irradiation that is positioned at described image-forming block heteropleural with described supporting body, in order to see through the photosensitive resin curing molding that two dimensional image region that described image-forming block represents or other zones in the image-forming block scope outside the two dimensional image make fluid state;
Stereolithography body through " individual layer " after this step namely completes, if carry out the formed body that the purpose of photocuring only is to obtain like this " individual layer ", then can stop to carry out subsequent step.If need to make the formed body of three-dimensional three-dimensional structure, then need continuous several times to carry out implant operation and the mobile space that is used for filling photosensitive resin that makes new advances of the photosensitive resin of liquid condition, namely carry out following step.
Step S303: behind the fluid state photosensitive resin curing molding in described supporting body, the photosensitive resin of curing molding is moved the first gap to the direction away from described light source, described the first gap is less than the curing depth of the photosensitive resin of fluid state;
With the photosensitive resin of curing molding away from light source after, because the image-forming block holding position is constant, between the formed body of image-forming block and curing molding, vacate new gap, this gap need to be less than the curing depth of the photosensitive resin of fluid state, " curing depth " is under certain illumination situation, the photosensitive resin of fluid state can polymerization reaction take place the degree of depth, if greater than this degree of depth, to cause away from the photosensitive resin of light source side well polymerization reaction take place or polymerisation carry out not exclusively, make formed body can not reach curing (sclerosis) degree of target.
Step S304: the photosensitive resin that injects new fluid state in the described supporting body is filled described the first gap;
Step S305: use the described image-forming block of light source irradiation that is positioned at described image-forming block heteropleural with described supporting body, in order to see through the photosensitive resin curing molding that two dimensional image region that described image-forming block represents or other zones in the image-forming block scope outside the two dimensional image make the fluid state of new injection;
Step S306: whether the curing molding of judging photosensitive resin reaches preset height, if so, and process ends then; If not, then return step S303.
By repeatedly carrying out the step of above-mentioned S303～S305, the two-dimentional formed body of a plurality of individual layers is accumulated as adhesion the target formed body of a stereoscopic three-dimensional structure.
The supporting body that said apparatus or embodiment of the method have been narrated the photosensitive resin of light source and carrying fluid state is positioned at the situation of image-forming block heteropleural, in fact, need based on reality, can suitably be out of shape this structure composed, obtain the light solidifying quick forming device that other form structure.Such as, this shows the composition structure of another light solidifying quick forming device embodiment, what this embodiment was different from said apparatus embodiment is the homonymy that light source and supporting body are positioned at image-forming block, in this case, the photocuring fast unit also comprises reflection part, be used for reflecting the light of described light source, make the light of reflection can pass through the photosensitive resin that described image-forming block shine fluid state, the same like this goal of the invention that can realize the application.Similarly, based on such Stereolithography device, referring to Fig. 4, its course of work comprises:
Step S401: the photosensitive resin that injects fluid state in the supporting body of photosensitive resin of carrying fluid state, represent X-Y scheme at the image-forming block that represents X-Y scheme, other the regional pellucidities in the image-forming block scope outside the X-Y scheme region that described image-forming block represents and the X-Y scheme are opposite;
Step S402: use is shone described image-forming block with the light source that described supporting body is positioned at described image-forming block homonymy through reflection part, so that the photosensitive resin curing molding that the two dimensional image region that the described image-forming block of light transmission that reflects through reflection part represents or other zones in the image-forming block scope outside the two dimensional image make fluid state.
Similarly, when the target formed body that needs moulding is the stereoscopic three-dimensional structure, also can make the new gap of the thin layer of curing molding and the generation between the image-forming block by increasing mobile step, thereby in this gap, inject the photosensitive resin of new fluid state, make new thin layer, a plurality of thin layers automatically adhere to each other and form the formed body of stereoscopic three-dimensional structure.
In fact, thinking based on above-mentioned improvement light solidifying quick forming device, those skilled in the art can also obtain the above-mentioned more shape changeable form that relates to device, as long as the light source that provides can see through the photosensitive resin that the different X-Y scheme of light and shade state shines fluid state and make its curing molding, can realize the application's goal of the invention.
Need to prove: easy for what narrate, what each embodiment of this specification stressed is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.Especially, for the device embodiment that supporting body and light source are positioned at the image-forming block homonymy, because the embodiment of its basic simlarity before it, so describe fairly simplely, relevant part gets final product referring to the part explanation of embodiment of the method.Each building block of device embodiment described above can or can not be physically to separate also, both can make a complete integral body in making, also can make respectively each part, then be mounted to as required the device that can realize the present application purpose.When being made as when finishing integral body, in fact the device scheme of the embodiment of the present application consists of a kind of 3D printer, by the two-dimensional section figure that control is inputted in this 3D printer, can utilize the photosensitive resin of fluid state to print the target formed body of various needs.
The above only is the application's the specific embodiment; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the application's principle; can also make some improvements and modifications, these improvements and modifications also should be considered as the application's protection domain.
Claims (5)
1. light solidifying quick forming device, it is characterized in that, described device comprises: the supporting body that is used for the photosensitive resin of carrying fluid state, be used for representing the image-forming block of X-Y scheme, other regional pellucidities in the image-forming block scope outside the X-Y scheme region that described image-forming block represents and the X-Y scheme are opposite, and the light source that is used for making the photosensitive resin polymerization reaction take place of fluid state, described light source and described supporting body are positioned at described image-forming block heteropleural.
2. described device according to claim 1, it is characterized in that, described device also comprises the first moving-member and the first transfer unit, after described the first moving-member is used for the photosensitive resin curing molding of the fluid state in described supporting body, the photosensitive resin of curing molding is moved the first gap to the direction away from described light source, described the first transfer unit is used for carrying the photosensitive resin of new fluid state in described supporting body, to fill described the first gap, described the first gap is less than the curing depth of the photosensitive resin of fluid state.
3. device according to claim 1, it is characterized in that, described device also comprises the second moving-member and the second transfer unit, after described the second moving-member is used for the photosensitive resin curing molding of the fluid state in described supporting body, described image-forming block is moved the second gap to the direction away from described supporting body, described the second transfer unit is used for carrying the photosensitive resin of new fluid state in described supporting body, to fill described the second gap, described the second gap is less than the curing depth of the photosensitive resin of fluid state.
4. any one described device in 3 according to claim 1, it is characterized in that, the supporting body of described photosensitive resin for carrying fluid state is U-shaped container, described image-forming block be used to representing X-Y scheme is liquid crystal display, and the light source of described photosensitive resin polymerization reaction take place be used to making fluid state is the light source of wavelength in 350 to 400 nanometer range.
5. light solidifying quick forming device, it is characterized in that, described device comprises: the supporting body that is used for the photosensitive resin of carrying fluid state, be used for representing the image-forming block of X-Y scheme, other regional pellucidities in the image-forming block scope outside the X-Y scheme region that described image-forming block represents and the X-Y scheme are opposite, and the light source that is used for making the photosensitive resin polymerization reaction take place of fluid state, described light source and described supporting body are positioned at described image-forming block homonymy, described device also comprises reflection part, described reflection part is used for reflecting the light of described light source, makes the light of reflection can pass through the photosensitive resin that described image-forming block shine fluid state.
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