CN101850619B - Stereoscopic moulding mechanism and method thereof - Google Patents
Stereoscopic moulding mechanism and method thereof Download PDFInfo
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- CN101850619B CN101850619B CN 200910130570 CN200910130570A CN101850619B CN 101850619 B CN101850619 B CN 101850619B CN 200910130570 CN200910130570 CN 200910130570 CN 200910130570 A CN200910130570 A CN 200910130570A CN 101850619 B CN101850619 B CN 101850619B
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Abstract
The invention relates to a stereoscopic moulding mechanism, at least comprising a construction pedestal, a printing assembly, a plurality of cache powder storage tanks, a plurality of powder supply tanks, a construction tank, a printing quality detection mechanism used for allowing the printing assembly to print a pattern thereon, an image detection element used for detecting the pattern of paper and judging whether the printing assembly is blocked or not, a maintenance device, a dust guide, a heating and air returning device and a continuous liquid supply device.
Description
Technical field
The invention relates to a kind of stereoscopic moulding mechanism, espespecially a kind of stereoscopic moulding mechanism and method thereof.
Background technology
rapid shaping technique (Rapid Prototyping, be called for short the RP technology) be to develop according to the concept that the construction pyramid is stacked into type layer by layer to form, its technical characteristics is the agility of moulding, can be without any need for cutter, automatic in the situation of mould and instrument, fast the design of any complicated shape is converted to fast the physical model of 3D, greatly shortened the R﹠D cycle of new product and reduced R﹠D costs, can guarantee the Time To Market of new product and the one-time success rate of new product development, it is between the technical staff, and technical staff and corporate decision maker, a more complete product design media of communication easily that reaches is provided between the non-technical personnels such as the user of product, thereby obviously improved product on market competitiveness and enterprise to the quick-reaction capability in market.
RP technical development at present goes out to utilize the spray printing technology to produce the physical model of 3D in conjunction with the mode of carrier precision positioning technology, its mode of production is first one deck powder be layed in the carrier top and utilize inkjet technology spray printing high viscosity adhesive liquid on the part powder, adhesive liquid and powder are stained with are sticked and solidify, repeat above-mentioned processing procedure always and pile up layer by layer the physical model that can complete 3D.
Yet the spray printing device that existing RP technology is used also can't be sealed up for safekeeping when not carrying out jet printing, and cull can be killed in the all-in-service station of jet-printing head or storage, will cause follow-up spray printing functional bad, can't continue the high-quality 3D product of spray printing output.
Though existing RP technology is to be known as rapid shaping technique, but no matter the size of moulding object or how to improve the equipment of rapid molding device, still need spend a few hours or tens of hours ability shaping completes, and in piling up layer by layer the finished product that forms, when jet-printing head itself has obstruction, if real-time judgment or discover, will not cause time and the material waste that can't remedy.
in addition, when the mode of using spray printing high viscosity adhesive liquid is shaped, glue point spouting velocity is up to 8m/ second, in this ultrahigh speed hydrojet, stick powder at that moment when drop is sticking, the side is not flown upward by the sticking glutinous nanoscale starch end meeting of drop thereby bounce-back, and for powder or pickup the time, push powder and pile the phenomenon that the Shi Junhui generation powder that drops flies upward everywhere, and existing equipment does not have quantitative powder supplying mechanism, need unnecessary powder is pushed recovery cylinder, pollute and energy waste in the time of can causing powder to drop, in addition, after completing, each paving powder needs to wait for the shaping and drying time, and must wait for after moulding that a few hours are dry, also even fabrication strength is not enough or take accidentally and all may injure finished product, so need allow products formed intensity enough strong, can take out, and the spray printing positioning accuracy can't be reached, can only unidirectional quick paving powder and printing, increase the time of total moulding.
In addition, when long-term standby or jet-printing head left, the scraping blade in all-in-service station and seal can stick adhesive and produce hardening phenomenon; And this powder working environment that can cause the dirt powder to fly upward when paving powder or print job, have influence on the disappearances such as normal operation of device and member.
Moreover, prior art is used the device of unidirectional dusting and unidirectional spray printing, the action of its print components of unidirectional spray printing is for first being located to terminal for powder by the initial point place, again by the destination county dusting to the initial point place, beginning spray printing by the initial point place more at last locates to terminal, the previous operations time is too tediously long, and the time can't take full advantage of.
Therefore, how to develop a kind of stereoscopic moulding mechanism and method thereof of improving above-mentioned prior art disappearance, real is present problem in the urgent need to address.
Summary of the invention
main purpose of the present invention, be to provide a kind of stereoscopic moulding mechanism and method thereof, also can't seal up for safekeeping when not carrying out jet printing to overcome the conventional stereo shaping mechanism, cull can be killed in the all-in-service station of jet-printing head or storage, can't judge whether jet-printing head has obstruction, can't prevent dust, wait for when the shaping and drying time passes of a specified duration and long-term standby or jet-printing head and leaves, scraping blade in all-in-service station and seal can stick adhesive and produce sclerosis, and use unidirectional dusting and unidirectional spray printing, the previous operations time is too tediously long, the shortcomings such as problem that time can't take full advantage of.
For reaching above-mentioned purpose, of the present invention one implements the sample attitude for a kind of stereoscopic moulding mechanism is provided than broad sense, and comprise: a construction pedestal has a carrying platform; One prints assembly, is disposed on this construction pedestal and does displacement, and have at least one print cartridge spray printing one liquid; A plurality of temporary storage powder grooves are disposed at respectively the both sides of this print components, provide quantitatively and the two-way powder laying operation of segmentation powder falling in order to receive the construction powder; A plurality of for powder grooves, configure this construction pedestal both sides, so that the construction powder to be provided; One construction groove, inside have a construction platform, the construction powder that is fallen into to carry this temporary storage powder groove, and make this construction powder that falls into this print components spray printing liquid thereon; Mechanism is surveyed in one printed product quality inspection, includes one and is disposed on this carrying platform of this construction pedestal and is driven rollable paper, uses for this print components spray printing one figure thereon; One image detecting element detects the figure of this paper to judge whether this print components blocks; One attending device includes that on this carrying platform that is arranged at respectively this construction pedestal, a cage unit and strikes off the unit; One dust guard, include a drive disk assembly dustproof construction, a construction groove dustproof construction, an attending device dustproof construction, an operating environment dustproof construction, a storage powder groove dustproof construction, pollute in order to prevent this construction powder that this paving powder operation and print job are kicked up; One heating and air-returning device, include a heater, the construction powder that accelerates curing spray printing liquid in order to produce a hot gas condenses, and be provided with a return air channel, be provided with drawing the construction powder that this paving powder operation and print job are kicked up, and should heat hot gas and guide to this return air channel and discharge, impaired with the print cartridge that reduces this print components; One continuous liquid supply device carries out spatterwork on the construction powder in a print cartridge that provides liquid to be sent to this print components.
Description of drawings
Figure 1A: it is the perspective view of the stereoscopic moulding mechanism of preferred embodiment of the present invention.
Figure 1B: it is the generalized section of Figure 1A.
Fig. 1 C: it is the schematic diagram that the print components shown in Figure 1B moves to right edge.
Fig. 1 D: it is the jacking equipment illustrative view shown in Figure 1B.
Fig. 1 E: it is the a-quadrant enlarged diagram of Figure 1B.
Fig. 1 F: it is the structural representation that slotted eye and the perforate of bottom of the plate of the temporary storage powder groove shown in Fig. 1 E do not communicate.
Fig. 1 G: it is the structural representation that the slotted eye of the plate of the temporary storage powder groove shown in Fig. 1 E is connected with the perforate of bottom.
Fig. 1 H: it is the perspective view of the Cover opening of temporary storage powder groove.
Fig. 2 A: it is existing schematic diagram for the powder mode.
Fig. 2 B: it is that temporary storage powder groove of the present invention supplies the schematic diagram of powder in segmentation powder falling mode on the construction platform.
Fig. 3: it is the part-structure schematic diagram of Figure 1A.
Fig. 4 A: it is the part-structure schematic diagram of print components of the present invention.
Fig. 4 B: it is that the drive disk assembly structural representation is set on the drive disk assembly shown in Fig. 4 A.
Fig. 5 A: it is the set construction groove dustproof construction schematic diagram of stereoscopic moulding mechanism of the present invention.
Fig. 5 B: it is the body schematic diagram of the construction groove dustproof construction shown in Fig. 5 A.
Fig. 5 C: it is the first air intake device schematic diagram that stereoscopic moulding mechanism of the present invention arranges construction groove dustproof construction.
Fig. 6 A: it is the attending device structural representation that stereoscopic moulding mechanism of the present invention arranges.
Fig. 6 B: it is the cage cellular construction schematic diagram shown in Fig. 6 A.
Fig. 6 C: it is the cage envelope dirt modular construction schematic diagram that stereoscopic moulding mechanism of the present invention arranges.
Fig. 6 D: it is the generalized section that the cage envelope dirt parts running shown in Fig. 6 C is opened.
Fig. 6 E: it is the generalized section that the cage envelope dirt parts running shown in Fig. 6 C is closed.
Fig. 7 A: it is the perspective view of the set cleaning dust proof member of stereoscopic moulding mechanism of the present invention.
Fig. 7 B: it is to strike off unit and the relevant assembling structure schematic diagram of cleaning dust proof member shown in Fig. 7 A.
Fig. 7 C: it is the structure for amplifying schematic diagram in the C zone of Fig. 7 A.
Fig. 7 D: it is that the route guidance unit of the dust proof member of cleaning shown in Fig. 7 C produces the structural representation of displacement downwards.
Fig. 7 E: it is to protrude rod member shown in Fig. 7 C by cleaning dust proof member schematic diagram.
Fig. 7 F: it is that strike off unit and the jet-printing head shown in Fig. 7 C implemented the cleaning operation schematic diagram.
Fig. 8: it is the operating environment dustproof construction schematic diagram in stereoscopic moulding mechanism of the present invention.
Fig. 9: it is the part-structure schematic diagram of the temporary storage powder groove shown in Figure 1A.
Figure 10 A: it is the generalized section that stereoscopic moulding mechanism of the present invention arranges heating and air-returning device.
Figure 10 B: it is the perspective view of Figure 10 A.
Figure 11: it is stereoscopic moulding mechanism continuous liquid supply device schematic diagram of the present invention.
Figure 12: it is the forming step flow chart of stereoscopic moulding mechanism of the present invention.
Figure 13: it is the surface structure schematic diagram of stereoscopic moulding mechanism of the present invention.
The specific embodiment
Some exemplary embodiments that embody feature ﹠ benefits of the present invention will be described in detail in the explanation of back segment.Be understood that the present invention can have various variations on different aspects, its neither departing from the scope of the present invention, and explanation wherein and icon be when the use that explain in itself, but not in order to limit the present invention.
See also Figure 1A and Figure 1B, wherein Figure 1A is the perspective view of the stereoscopic moulding mechanism of preferred embodiment of the present invention, Figure 1B is the generalized section of Figure 1A, as shown in Figure 1A, stereoscopic moulding mechanism 1 of the present invention is mainly to have on the construction pedestal 9 of carrying platform 91 configuration one in one to print assembly 11, a plurality of temporary storage powder groove, a plurality of for powder groove, a jacking equipment 14 and a construction groove 15 (as shown in Figure 1B).
In addition, stereoscopic moulding mechanism of the present invention also has a printed product quality inspection and surveys mechanism and an image detecting element, this print quality testing agency includes one and is driven rollable paper, use for this print components spray printing one figure on this paper, the figure that detects this paper with this image detecting element judges whether this print components blocks; And when preventing that print components from not operating, on it, on jet-printing head of print cartridge residual contain the liquid hardening that glues together glue and the powder that flies upward sticked together on jet-printing head, and cause follow-up spray printing dysfunction, can't continue spray printing and go out high-quality solid object, therefore in stereoscopic moulding mechanism of the present invention, an attending device is set also.
Moreover stereoscopic moulding mechanism of the present invention contains the liquid construction moulding solid object of adhesive with spray printing on the construction powder, and the working environment that this construction powder can cause the dirt powder to fly upward when paving powder or print job has influence on the normal operation of said apparatus and member.Yet, the device of stereoscopic moulding mechanism of the present invention and member all will be kept normal operation at any time, to necessarily require comprehensive definitely the preventing dust of whole equipment, therefore, stereoscopic moulding mechanism of the present invention also further arranges dust guard, this dust guard includes a drive disk assembly dustproof construction, a construction groove dustproof construction, an attending device dustproof construction, an operating environment dustproof construction, a storage powder groove dustproof construction, in order to prevent that this construction powder that this paving powder and print job are kicked up from polluting, and completely cut off.
In addition; general stereoscopic moulding mechanism is very time-consuming in construction moulding solid object; for overcoming this shortcoming, the essential quickening of speed of construction groove upper berth powder lamination, but at normal temperatures; must want a period of time dry after containing the spray liquid of adhesive; for shortening drying time, stereoscopic moulding mechanism of the present invention also further arranges heating and air-returning device, can accelerate drying time; reach Quick jet printing and molding time, and can be as the proofing dust and protecting of ink gun.
In addition, the present invention's stereoscopic moulding mechanism of the present invention is in order to reach the purpose that can without interruptionly contain the liquid of adhesive, one continuous liquid supply device further is provided, the liquid that will contain adhesive is sent in a print cartridge of this print components, is able to long-time continuous and carries out spatterwork on the construction powder.
Below just the above-mentioned mentioned relevant apparatus of stereoscopic moulding mechanism of the present invention, member and enforcement solid object forming method thereof elaborate.
See also Figure 1B, the inside of construction groove 15 is connected and can does the oscilaltion displacement with the partial component of jacking equipment 14, and the inside of construction groove 15 has a construction platform 151, construction platform 151 use are for the solid object of the stacking moulding of placed layer layer, and the location that is connected with jacking equipment 14 is mainly carried out lifting according to the drive of jacking equipment 14 in the inside of construction groove 15.
Please consult Figure 1A, a plurality of powder grooves that supply can comprise 2 for powder groove 131 and 132, mainly are arranged at the limit, the left and right sides of stereoscopic moulding mechanism 1, in order to provide the production solid object needed construction powder again.As for, a plurality of temporary storage powder grooves can comprise 2 temporary storage powder grooves 121 and 122, it is arranged at respectively the limit, the left and right sides of print components 11, and carry out the left and right interlock together with print components 11, match with temporary storage powder groove 121 for powder groove 131 and be arranged at the same side, in order to provide the construction powder to carry out follow-up construction paving powder to temporary storage powder groove 121, match with temporary storage powder groove 122 for powder groove 132 and be arranged at the same side, carry out to the temporary storage powder groove 122 follow-uply can two-way construction spreading powder in order to the construction powder to be provided.
the present embodiment will be come into operation by first side to second side with print components 11 and implement stereoscopic article type method proposition explanation, wherein the first side represents the left side of Figure 1A, the second side represents the right side of Figure 1A, but the actual operation mode is not as limit, please consult again Figure 1B and Figure 12, the function mode of stereoscopic moulding mechanism 1 of the present invention is: at first, when the confession powder groove 131 in left side matches with temporary storage powder groove 121, to provide for powder groove 131 and be layed in once needed construction powder 16 (shown in step S121 and Fig. 1 D) to the temporary storage powder groove 121 of construction platform 151 whole surface, treat for powder complete, print components 11 will drive temporary storage powder groove 121 and move to right side (step S122) by the left side, and the construction powder 16 of temporary storage powder groove 121 inside will be tiled in mobile process on the surface of construction platform 151 (step S123), until print components 11 moves to right edge (as shown in Fig. 1 C), for powder groove 132 can with the corresponding setting that matches of temporary storage powder groove 122, provide equally for powder groove 132 and be layed in once needed construction powder 16 (step S124) to the temporary storage powder groove 122 of construction platform 151 whole surface, after completing for powder, print components 11 side shifting of turning left, and utilize inkjet technology spray printing on the part construction powder 16 of laying on construction platform 151 to contain the liquid of adhesive, this liquid and construction powder 16 be stained with stick and solidified (step S125), and the temporary storage powder groove 122 that is arranged at print components 11 right edge will re-lay one deck construction powder 16 subsequently in carrying out on the construction powder 16 that jet printing completes (step S126), assembly 11 to be printed move to the left side and again make for powder groove 131 with temporary store up powder groove 121 match corresponding after, to again provide powder to temporary storage powder groove 121 interior (step S127) for powder groove 131, 11 of print components drive temporary storage powder groove 121 and move to the right side by the left side afterwards, and utilize inkjet technology spray printing high viscosity adhesive liquid on the part construction powder 16 of laying on construction platform 151, adhesive liquid and construction powder 16 be stained with stick and solidified (step S128), then, the running software of stereoscopic moulding mechanism 1 will judge whether to have completed the production stage of solid object, if result is yes, completed product run step, and jacking equipment 14 will drive construction platform 151 toward rising, can remove unnecessary construction powder 16, to carry out pickup.
otherwise, if the result is negative, the temporary storage powder groove 122 that is arranged at print components 11 right edge will re-lay one deck construction powder 16 subsequently in carrying out on the construction powder 16 that jet printing completes, repeat above-mentioned steps S123 to S128 piles up and can complete solid object always layer by layer, it is the physical model of 3D, can solve prior art and use the device of unidirectional dusting and unidirectional spray printing, the action of its print components of unidirectional spray printing is for first being located to terminal for powder by the initial point place, again by the destination county dusting to the initial point place, beginning spray printing by the initial point place more at last locates to terminal, the previous operations time is too tediously long, the problem that time can't take full advantage of.
In addition, in the every spray printing one deck of print components 11 or after producing certain thickness, jacking equipment 14 will drive construction platform 151 toward the inside decline (as shown in Fig. 1 D) of construction groove 15, and print components 11 will continue to coordinate the paving powder of temporary storage powder groove 121 and 122 and carry out the production of solid object, until after whole solid object moulding, jacking equipment 14 will drive construction platform 151 toward rising, and can remove unnecessary powder, to carry out pickup.
See also Fig. 1 E, Figure 1A and Figure 1B, wherein Fig. 1 E is the a-quadrant enlarged diagram of Figure 1B, as shown in the figure, inside for powder groove 131 is provided with a plurality of rollers, namely two group of first roller 1311 and one second roller 1312, the first rollers 1311 can be used as the powder that stirs for powder groove 131 inside, and the second 1312, roller is a certain amount of roller, in order to quantitatively to provide construction powder 16 to temporary storage powder groove 121, namely be layed in once needed construction powder 16 of construction platform 151 whole surface.
Please coordinate again and consult Figure 1A and E, but the top of temporary storage powder groove 121 is provided with the lid 1211 that a left and right translation is opened, and lid 1211 is connected with the body of temporary accumulator tank 121 by a flexible member 1213, the present embodiment flexible member 1213 is spring.In addition, the edge of this lid 1211 has a protruding sidepiece 1212.
Please coordinate again and consult Fig. 1 C and Fig. 1 E, temporary confession powder groove 121 tops also have one for powder passage 1313 and a block piece 1314, block piece 1314 is when keeping in storage powder groove 121 and contacting for powder groove 131, support mutually with the temporary protruding sidepiece 1212 that stores up the lid 1211 of powder groove 121, in order to the temporary storage of horizontally openable powder groove 121, making can be by being delivered to temporary storage powder groove 121 inside for powder passage 1313 with construction powder 16 for powder groove 131, can shorten the temporary distance of storing up powder groove 121 and supplying powder falling between powder groove 131, to reduce flying upward of powder.
Please consult again Fig. 1 E, after complete for powder for powder groove 131, temporary storage powder groove 121 will be turned right away from supplying powder groove 131 because of the drive of print components 11, at this moment, block piece 1314 will no longer be supported the protruding sidepiece 1212 of the lid 1211 of temporary storage powder groove 121, and lid 1211 also will be closed (as shown in Figure 1A) because of the effect of flexible member 1213 elastic restoring forces.
see also Fig. 1 F and Fig. 1 H, wherein Fig. 1 F is the structural representation that slotted eye and the perforate of bottom of the plate of the temporary storage powder groove shown in Fig. 1 E do not communicate, Fig. 1 H is the perspective view of the Cover opening of temporary storage powder groove, as shown in the figure, the inside of temporary storage powder groove 121 is provided with a driver part, can be eccentric wheel 1214, plate 1215 motions that have a plurality of slotted eyes 12151 in order to drive, and the bottom region division corresponding with plate 1215 of temporary storage powder groove 121 has a plurality of perforates 1216, and these a plurality of perforates 1216 are level each other and separate setting, when the lid 1211 of temporary storage powder groove 121 is opened and is supplied powder, eccentric wheel 1214 will drive plate 1215 and move to make between slotted eye 12151 and perforate 1216 and be not communicated with, can prevent that the construction powder from leaking, otherwise, when the lid 1211 of temporary storage powder groove 121 is closed, eccentric wheel 1214 will drive plate 1215 and move and make slotted eye 12151 and be connected between perforate 1216 (as shown in Fig. 1 G), thus, the construction powder of temporary storage powder groove 121 inside will be in dropping under the drive of print components 11 on construction platform 151, and the roller 1217 by the rear is bulldozed the construction powder and pressing so that the construction powder be tiled on the surface of construction platform 151.
please consult again Fig. 1 F and Fig. 1 H, because slotted eye 12151 set on plate 1215 of the present invention is level each other and separates setting, therefore powder falling mode that can segmentation supplies powder (as shown in Fig. 2 B) on construction platform 151, so that the paving powder density on construction platform 151 is consistent, can solve prior art all powder amounts just once are provided when beginning for powder, cause when beginning to push away powder because weight and pushing, the density inequality and the unnecessary construction powder that form leading portion and back segment paving powder are pushed in recovery cylinder, as shown in Fig. 2 A, when powder quantity not sufficient or paving powder when too much, the powder amount all can concentrate on mid portion, cause the construction powder density uneven, make finer and close than the front end powder density, and the two ends of construction platform are not easy to be taped against the construction powder, must repeatedly spread powder just can be taped against, the construction powder density that causes is uneven, the waste of construction powder and time are upward wasted and need repeatedly operation just can complete the problem that once spreads powder.
As for, be identical with Fig. 1 E, Fig. 1 F, Fig. 1 G and Fig. 1 H for powder groove 132 with temporary mode and structure of storing up 122 combinations of powder groove, therefore do not reintroduce explanation.
please consult again Figure 1A and Fig. 3, wherein Fig. 3 is the part-structure schematic diagram of Figure 1A, as shown in the figure, stereoscopic moulding mechanism 1 of the present invention also has a printed product quality inspection and surveys mechanism 17 and an image detecting element 18, print quality testing agency 17 comprises one and is disposed on the carrying platform 91 of construction pedestal 9 and is driven rollable paper 171, print components 11 can be prior to carrying out spray printing before initial startup on paper 171, and be arranged at for the image detecting element 18 on powder groove 131 sides, for example: this image detecting element 18 is a charge coupled cell (CCD), whether the figure that detection is printed and the jet-printing head 1121 (as shown in Fig. 7 F) that judges print components 11 have the phenomenon of obstruction, if judgment result is that be, need first print components 11 to be cleaned, when otherwise if the determination result is NO, print quality testing agency 17 is with scrolling paper 171, used paper 171 is furled to change clean paper 171, use in order to follow-up test, and print components 11 can carry out follow-up spray printing action on construction platform 151.
See also Fig. 4 A, it is the part-structure schematic diagram of print components of the present invention, as shown in the figure, stereoscopic moulding mechanism 1 of the present invention comprises a drive disk assembly 111, such as: this drive disk assembly 111 is ball guide screw and linear slide rail etc., the both sides that it is located at print components 11 are mainly used to drive print components 11 and move.
Stereoscopic moulding mechanism 1 of the present invention is in order to prevent that the spray printing process from producing the construction powder that flies upward and being built-up on drive disk assembly 111, and cause the impacts such as its service life and printing precision, the drive disk assembly dustproof construction that stereoscopic moulding mechanism 1 of the present invention is set, it is formed (as shown in Figure 4 B) by dustproof plate 191 and retractable dustproof sheath 192, intercept in order to the environment that drive disk assembly 111 and dirt powder are flown upward, to guarantee the definitely dustproof of drive disk assembly 111.Wherein, dustproof plate 191 can be an ironware, its be coated on drive disk assembly 111 around, its function except intercepting powder and drive disk assembly 111 contact, the track when also can be used as retractable dustproof sheath 192 and walking.When print components 11 was turned left side shifting, the left side of retractable dustproof sheath 192 can be subject to the extruding of print components 11 and shrink, and right-hand part extends.Otherwise, to turn right when mobile when print components 11, the right-hand part of retractable dustproof sheath 192 can be subject to the extruding of print components 11 and shrink, and the left side extends, and intercepts to reach the purpose that powder contacts with drive disk assembly 111.
see also Fig. 5 A, it is the set construction groove dustproof construction schematic diagram of stereoscopic moulding mechanism of the present invention, in order to clearly demonstrate thin section of the present invention structure, Fig. 5 A is that the part-structure with stereoscopic moulding mechanism shown in Figure 1 is not omitted and indicates, as shown in Figure 5, in some embodiment, the construction groove dustproof construction that stereoscopic moulding mechanism 1 of the present invention is set, formed by powder falling dust proof member 20 and the first air intake device 21, this powder falling dust proof member 20 around be arranged at construction groove 15 around, this construction platform 151 is arranged at the zone line of this powder falling dust proof member 20, this powder falling dust proof member 20 comprises lid 201 and the body 202 with a plurality of through holes 2011, and directly falling for fear of powder causes the dirt powder to fly upward in the inside of body 202, also be provided with a plurality of ramp structures 2021 (as shown in Fig. 5 B), and coordinate the absorption of the first air intake device 21, the powder that the spray printing process is kicked up is by the through hole 2011 of lid 201, the ramp structure 2021 of body 202 is collected in collection powder groove 22 (as shown in Fig. 5 C).
when preventing that print cartridge 112 from not operating, the powder that on the jet-printing head 1121 of print cartridge 112 residual contain the liquid hardening of adhesive and fly upward sticks together on jet-printing head 1121, and cause follow-up spray printing dysfunction, can't continue spray printing and go out high-quality solid object, therefore set attending device 30 mainly includes on this carrying platform 91 that is arranged at respectively this construction pedestal 9 a cage unit 31 and and strikes off unit 32 in the stereoscopic moulding mechanism 1 of the present embodiment, when print cartridge 112 does not operate, this cage unit 31 is used for sealing the jet-printing head 1121 (as shown in Fig. 6 D) of print cartridge 112, striking off unit 32 gets rid of the liquid that contains adhesive unnecessary on jet-printing head 1121, to prevent the contaminated and mummification (as shown in Fig. 7 F) of jet-printing head 1121.
see also Fig. 6 A and Fig. 6 B, wherein Fig. 6 A is the part-structure schematic diagram of the set attending device of stereoscopic moulding mechanism of the present invention, Fig. 6 B is the cage cellular construction schematic diagram shown in Fig. 6 A, as shown in Figure 6A, cage of the present invention unit 31 comprises protection cage 311 and the seal member of at least one 312, this protection cage 311 is to be arranged on the carrying platform 91 of stereoscopic moulding mechanism 1, and this at least one seal member 312 is arranged at protection cage 311 inside, mainly when print cartridge 112 does not operate, contact with the bottom of print cartridge 112, making at least one seal member 312 of protection cage 311 inside contact with the jet-printing head 1121 of print cartridge 112 is connected, with sealing jet-printing head 1121 (as shown in Fig. 6 D), can reach the liquid hardening that contains adhesive on the jet-printing head 1121 that prevents print cartridge 112, and prevent that powder from sticking together the effect on jet-printing head 1121.Certainly, in some embodiment, the quantity of seal member 312 can change according to the quantity of print cartridge 112.
when the mode of using spray printing to contain the liquid of adhesive is shaped, glue point spouting velocity is up to 8m/s, in this ultrahigh speed hydrojet, when drop is sticky in powder moment, side nanoscale starch end meeting thereby bounce-back are flown upward, or for powder or pickup the time, all can produce powder flies upward everywhere, protecting cage 311 this moment just might be subject to the pollution of powder and need dustproof device, therefore the set attending device dustproof construction of the present invention comprises cage envelope dirt parts 33 (as shown in Fig. 6 C) and a pair of scraper plate envelope dirt parts 4 (as shown in the 7th figure B) that strike off unit 32 envelope dirt of a pair of cage unit 31 envelope dirt.
Carry out spray printing running and protection cage 311 when idle when print cartridge 112, these cage envelope dirt parts 33 can reach dustproof purpose by capping protection protection cage 311.These cage envelope dirt parts 33 are comprised of body 331, Moveable lid body 332 and flexible member 333, this body 331 is fixedly arranged on carrying platform 91, these Moveable lid body 332 parts are sheathed on this body 331, this flexible member 333 can be a spring, the one end is fixed on this body 331, and the other end is connected with this Moveable lid body 332.
see also Fig. 6 D and Fig. 6 E, it is the generalized section of cage envelope dirt parts of the present invention running, as shown in Fig. 6 D, when this print cartridge 112 does not operate and is close towards these protection cage 311 directions, the bearing frame 114 of this print cartridge 112 will be supported mutually with the Moveable lid body 332 of these cage envelope dirt parts 33, move toward the direction away from this protection cage 311 to promote this Moveable lid body 332, i.e. b direction shown in figure, make this protection cage 311 out exposed, and the seal member 312 that makes this cage unit 31 is subject to that this bearing frame 114 contacts continuous action relation and contacts with the bottom of this print cartridge 112 that (cage unit and bearing frame continuous action relation are made flowing mode for existing jet-printing head maintenance technology, do not repeat them here), making the jet-printing head 1121 of this print cartridge 112 contact with sealing parts 312 is connected and seals.What at this moment, this Moveable lid body 332 will be because of the bearing frame 114 of this print cartridge 112 continues to support the state of always keeping unlatching.
otherwise, see also Fig. 6 E, when this print cartridge 112 wants to carry out spray printing work, this print cartridge 112 will break away from this protection cage 311 tops, and move toward these construction platform 151 directions, i.e. a direction shown in figure, at this moment, the bearing frame 114 of this print cartridge 112 will not bestow to the Moveable lid body 332 of these cage envelope dirt parts 33 active force of supporting, the direction toward this protection cage 311 moves in response to the elastic-restoring force effect of this flexible member 333 to make this Moveable lid body 332, and then cover this protection cage 311, prevent that to reach the powder that flies upward from polluting protection cage 311.
see also Fig. 7 A and Fig. 7 C, wherein Fig. 7 A is the perspective view of the set cleaning dust proof member of stereoscopic moulding mechanism of the present invention, Fig. 7 C is the regional enlarged diagram of the C of Fig. 7 A, as shown in Fig. 7 A, cleaning dust proof member 4 of the present invention is arranged on the carrying platform 91 of stereoscopic moulding mechanism 1, the relative dual-side of this carrying platform 91 is the plate 115 of configuring print assembly 11 respectively, this plate 115 is set up on drive disk assembly 111, driving in order to corresponding drive disk assembly 111 drives print components 11 in a-b direction back and forth movement, so that print components 11 carries out spray printing on construction platform 151.
please consult again Fig. 7 A and Fig. 7 C, have one on these plate 115 sides and protrude rod member 1151, and see also Fig. 7 B, it is that the unit that strikes off shown in Fig. 7 A concerns schematic diagram with 4 groups of dust proof member of cleaning are vertical, and as shown in the figure, this strikes off unit 32 and includes a rotating body 321, driving wheel group 322 and at least one scraper plate 323, wherein this body 321 is driven rotatably by driving wheel group 322, this at least one scraper plate 323 is arranged at interlock on body 321, and this scraper plate 323 can be the scraper plate of a quality of rubber materials, and this cleaning dust proof member 4 is comprised of lid 41 and a reposition element 42, the present embodiment reposition element 42 is a torque spring, this lid 41 is hubbed at this and strikes off on unit 32, and be provided with a driven wheel 411 and be engaged and linked with driving wheel group 322, and this reposition element 42 also hooking strike off on unit 32 in this, so lid 41 by reposition element 42 can be back and forth rotationally with strike off unit 32 and be connected, make driven wheel 411 driving driving wheel group 322 drive scraper plate 323 by lid 41 rotations and be unlatching or a closed condition, to present vertical setting (as shown in Fig. 7 F) when scraper plate 323 is opened, otherwise, present when closing and be horizontally disposed with (as shown in Fig. 7 C).
please consult again Fig. 7 B, one side of this lid 41 has a route guidance unit 412, it has flexible plate, it comprises an inclined plane 4121 and a support surface 4122, see also Fig. 7 C, when breaking away from this protection cage 311, print cartridge 112 moves toward these construction platform 151 directions, and when this plate 115 moves to cleaning dust proof member 4, the protrusion rod member 1151 of this plate 115 will be along this route guidance unit 412 inclined plane 4121 guiding and by cleaning dust proof member 4 (as shown in Fig. 7 D), because this route guidance unit 412 is elastic panels, therefore when protrusion rod member 1151 is pressed on inclined plane 4121, to make this route guidance unit 412 generation displacements (as shown in Fig. 7 D) downwards, and the protrusion rod member 1151 that makes this plate 115 passes through cleaning dust proof member 4 (as shown in Fig. 7 E) smoothly, carry out spray printing to drive print components 11 to construction platform 151.
otherwise, print when the print cartridge 112 of this print components 11 and complete or jet-printing head 1121 is when having dirt, this plate 115 will drive this print components 11 and move (namely as shown in Figure 7 toward these cleaning dust proof member 4 directions, moved toward the b direction by a), the protrusion rod member 1151 of this plate 115 will contact mutually with the support surface 4122 of this route guidance unit 412, and move by this plate 115 driven wheel 411 driving driving wheel group 322 rotations that the thrust that produces connects this lid 41, so the lid 41 of this cleaning dust proof member 4 is pushed down, simultaneously, this scraper plate 323 is also because of the drive vertical unlocking of driving wheel group 322, make this jet-printing head 1121 through the scraper plate 323 on this cleaning dust proof member 4, the liquid that contains adhesive unnecessary on this jet-printing head 1121 is got rid of, to prevent the contaminated and mummification of jet-printing head 1121.
Please consult again Fig. 7 C and Fig. 7 D, as shown in the figure, when the scraper plate 323 of this cleaning dust proof member 4 does not need to operate, this moment, the support surface 4122 of protrusion rod member 1151 and this route guidance unit 412 of this plate 115 did not contact, therefore this lid 41 is subjected to the reverse reset of reposition element 42, therefore cover by this lid 41 and strike off unit 32, can reach the effect that the liquid contamination that prevents the powder that flies upward or contain adhesive strikes off unit 32.
Please consult again Fig. 7 B and Fig. 7 F, after this scraper plate 323 is completed cleaning and this print cartridge 112 and is left, the elastic-restoring force of the reposition element 42 of this cleaning dust proof member 4 will reverse that this lid 41 resets and driving belt driving wheel 411 drives driving wheel group 322 and rotates, so that scraper plate 323 turns to closed condition, this lid 41 will again cover and strike off unit 32, can reach the effect that the liquid contamination that prevents the powder that flies upward or contain adhesive strikes off unit 32.
See also Fig. 8 and Figure 13, it is operating environment dustproof construction schematic diagram in stereoscopic moulding mechanism of the present invention for Fig. 8, and it is to see structural representation outside stereoscopic moulding mechanism of the present invention for Figure 13.as shown in the figure, the inside processing environment of stereoscopic moulding mechanism 1 of the present invention is to utilize cover cap 8 to be isolated from the outside, also can cause powder to fly upward when operating due to the inside processing environment, affect running and the life-span of inner member for fear of powder, in embodiment, one operating environment dustproof construction can be set in the inside processing environment, this operating environment dustproof construction comprises a perforate 51, one pipeline 52 and one second air intake device 53, this perforate 51 is arranged on construction pedestal 9 and is subjected to cover cap 8 to hide inside processing environment (not icon) in stereoscopic moulding mechanism 1, and this pipeline 52 is linked between perforate 51 and one second air intake device 53 as the control of dust transfer conduit, therefore this stereoscopic moulding mechanism 1 is covered with 8 times operations of cover cap in an end face outside, with so that operating environment produces a negative pressure, inhale in retracting device (not icon) with the powder that will fly upward.
see also Fig. 9, it is the part-structure schematic diagram of the temporary storage powder groove shown in Figure 1A, as Fig. 1 F, Fig. 1 G and shown in Figure 9, in some embodiment, the inside of temporary storage powder groove 121 is to be provided with a storage powder groove dustproof construction, this storage powder groove dustproof construction includes a lid 1211, one flexible member 1213 and temporary storage powder groove 121 interior set ramp structures 1218, this lid 1211 is arranged at the top of this temporary storage powder groove 121 and is connected by the body of flexible member 1213 with temporary accumulator tank 121, but reach the notch action that the temporary storage of sealing powder groove 121 was opened or closed in the left and right translation.
When supplying powder when lid 1211 unlatchings of keeping in storage powder groove 121, arrange to guide for powder by this ramp structure 1218, and prevent from occuring because the direct powder falling of gravity causes the situation that the construction powder flies upward when the powder, and after complete for powder, this lid 1211 will be closed, can be limited in its inner confined space keeping in the dirt powder that flies upward that produces when storage powder groove 121 spreads powder, to reach the dustproof function of temporary storage powder groove 121.
see also Figure 10 A, it is the generalized section that stereoscopic moulding mechanism of the present invention arranges heating and air-returning device, as shown in the figure, heating and air-returning device of the present invention can comprise at least one heater 61, this heater 61 can be a quartz heating-pipe, but not as limit, be arranged at the side of roller 1217, main in being stained with heating, drying on the glutinous liquid that contains adhesive with the construction powder immediately after print components 11 spray printings, make itself and construction powder 16 cohere curing, in order to again spreading powder, can accelerate to spread the speed of powder, in some embodiment, heating and air-returning device more can have a heat sensor (not icon), be mainly used to the temperature of sensing heating and control heater 61 runnings according to sensing result, when sensing heater 61 is heated to a certain design temperature, close immediately heater.
please consult again Figure 10 A and coordinate Figure 10 B, wherein Figure 10 B is the perspective view shown in Figure 10 A, as shown in the figure, cause the damage of print components 11 for fear of the hot gas convection current of heater 61, heating and air-returning device also can include a return air channel 62 (as shown in Figure 10 A and Figure 10 B), this return air channel 62 can be connected with extractor fan (not icon) by pipeline 63 (as shown in Fig. 5 A), the flow direction of heater 61 hot gas that produces can be guided to this return air channel 62, to avoid thermal current to cause the damage of jet-printing head 1121 through the print cartridge 112 of this print components 11, in some embodiment, the setting position of this heater 61 take with this return air channel 62 in the same side as good, in addition, this return air channel 62 collocation extractor fans are except the controlled flow direction that heats gas, more the powder that print components 11 carries out kicking up in the spray printing process can be drawn to retracting device, reach the proofing dust and protecting effect of an ink gun.
See also Figure 11, it is stereoscopic moulding mechanism of the present invention institute continuous liquid supply device structure schematic diagram, and as shown in the figure, the continuous liquid supply device 70 of the present embodiment can comprise a fluidsupply container 71, the first aspirator 72, the second aspirator 73 and an accumulator tank 74.Wherein, this fluidsupply container 71 is positioned over the outside of stereoscopic moulding mechanism 1, in order to store the required liquid that contains adhesive 711 of these print components 11 spray printings, and this fluidsupply container 71 is by connecting line guiding and first aspirator 72 swabbing actions, internal reservoir liquid 711 is imported in this print cartridge 112, and this print cartridge 112 also can by connecting line guiding and second aspirator 73 swabbing actions, import inner excess liquid 711 in accumulator tank 74.
When this print components 11 running, utilize the running software of stereoscopic moulding mechanism 1 to calculate the liquid that contains adhesive 711 liquid measures of these print cartridge 112 required injections of specking number, then utilize this first aspirator 72 to draw in this fluidsupply container 71 greater than some a little amounts of required spray printing amount to this print cartridge 112 inside, after casket 112 spray printings to be printed were completed, the inner unnecessary adhesive liquid of print cartridge 112 711 can utilize the suction of the second aspirator 73 and flows in accumulator tank 74.In the present embodiment, the first aspirator 72 and the second aspirator 72 are a pumping.
In addition, the first aspirator 72 of the present invention has unidirectional non-return function, therefore fluidsupply container 71 can be positioned over the end in any position of the jet-printing head height of print cartridge 112, and the height of the insertion contact liq 711 of the liquid level detected catheter 113 of this print cartridge 112 can be used as interior height and the capacity that can deposit the liquid 711 that contains adhesive of print cartridge 112 that detect of controlling.If this accumulator tank 74 is under the situation of cleaning in addition, is can pour in outside fluidsupply container 71 to reuse again.
In sum, stereoscopic moulding mechanism of the present invention arranges respectively for powder groove and temporary storage powder groove in its dual-side, making for the powder groove to provide the construction powder to the temporary storage powder groove that matches, and print components can drive the powder that supplies that first and second temporary storage powder groove carries out two-way powder laying, and carry out two-way spray printing, can carry out two-way for powder, and paving powder and printing, to promote the speed of paving powder and spray printing.
Stereoscopic moulding mechanism of the present invention and forming method thereof, by quantitatively provide for the powder groove be layed in construction platform whole surface once needed construction powder to temporary storage powder groove, and a plurality of slotted eyes that the plate of temporary storage powder trench bottom comprises are level each other and separate setting, mode that can the segmentation powder falling supplies powder on the construction platform, so that the paving powder density on the construction platform is consistent.
In addition, stereoscopic moulding mechanism of the present invention and forming method thereof, by the dust guards such as drive disk assembly dustproof construction, construction groove dustproof construction, attending device dustproof construction, operating environment dustproof construction, storage powder groove dustproof construction are set, in order to prevent that this construction powder that this paving powder and print job are kicked up from polluting, impel device and the member of stereoscopic moulding mechanism all can keep normal operation at any time, reach comprehensive definitely the preventing dust of whole equipment; Moreover this attending device dustproof construction can be protected the cage unit of attending device and strike off the unit when not carrying out jet printing, to reach dustproof and to prevent the contaminated purposes such as doing words that reaches of jet-printing head.
Moreover; stereoscopic moulding mechanism of the present invention and forming method thereof; and can judge whether jet-printing head has obstruction by print quality testing agency and image detecting element, and arrange that heating and air-returning device shortens time of waiting for shaping and drying and as effects such as ink gun proofing dust and protecting.Therefore, stereoscopic moulding mechanism of the present invention and forming method thereof have the value of industry.
Claims (14)
1. stereoscopic moulding mechanism comprises:
One construction pedestal has a carrying platform;
One prints assembly, is disposed on this construction pedestal and does displacement, and have at least one print cartridge spray printing one liquid;
A plurality of temporary storage powder grooves are disposed at respectively the both sides of this print components, provide quantitatively and the two-way powder laying operation of segmentation powder falling in order to receive the construction powder;
A plurality of for powder grooves, be disposed at this construction pedestal both sides, so that the construction powder to be provided;
One construction groove, inside have a construction platform, the construction powder that is fallen into to carry this temporary storage powder groove, and make this construction powder that falls into this print components spray printing liquid thereon;
Mechanism is surveyed in one printed product quality inspection, includes one and is disposed on this carrying platform of this construction pedestal and is driven rollable paper, uses for this print components spray printing one figure thereon;
One image detecting element detects the figure of this paper to judge whether this print components blocks;
One attending device includes that on this carrying platform that is arranged at respectively this construction pedestal, a cage unit and strikes off the unit;
One dust guard, include a drive disk assembly dustproof construction, a construction groove dustproof construction, an attending device dustproof construction, an operating environment dustproof construction, a storage powder groove dustproof construction, pollute in order to prevent this construction powder that this paving powder operation and print job are kicked up;
One heating and air-returning device, include a heater, the construction powder that accelerates curing spray printing liquid in order to produce a hot gas condenses, and be provided with a return air channel, be provided with drawing the construction powder that this paving powder operation and print job are kicked up, and should heat hot gas and guide to this return air channel and discharge, impaired with the print cartridge that reduces this print components;
One continuous liquid supply device carries out spatterwork on the construction powder in a print cartridge that provides liquid to be sent to this print components.
2. stereoscopic moulding mechanism according to claim 1, it is characterized in that this confession powder groove inside arranges two group of first roller and one second roller, this first roller is as the powder that stirs for powder groove inside, this second roller as quantitatively provide this construction platform whole surface once needed construction powder in should temporary storage powder groove.
3. stereoscopic moulding mechanism according to claim 2, is characterized in that this temporary storage powder groove moves with the print components interlock and matches for the powder groove with one and accept quantitative powder falling, to spread powder on this construction platform.
4. stereoscopic moulding mechanism according to claim 1, is characterized in that this temporary storage powder groove has a plurality of perforates, and be that level and separation arrange each other.
5. stereoscopic moulding mechanism according to claim 4, it is characterized in that this temporary storage powder groove has a driver part and a plate, this driver part is connected with this plate, drive this plate with eccentric motion and do the left and right translational motion, and this plate has level each other and separate a plurality of slotted eyes of arranging so that this a plurality of slotted eyes move and are connected with these a plurality of perforates, makes this construction powder be able to the segmentation powder falling and falls on this construction platform.
6. stereoscopic moulding mechanism according to claim 1, is characterized in that the drive disk assembly dustproof construction of this dust guard has dustproof plate and a retractable dustproof sheath.
7. stereoscopic moulding mechanism according to claim 6, it is characterized in that this dustproof plate be coated on this drive disk assembly around, this retractable dustproof sheath telescopically is arranged on the formed track of this dustproof plate, contacts with this drive disk assembly in order to intercept this construction powder.
8. stereoscopic moulding mechanism according to claim 1, is characterized in that the construction groove dustproof construction of this dust guard comprises a powder falling dust proof member and one first air intake device.
9. stereoscopic moulding mechanism according to claim 8, it is characterized in that this powder falling dust proof member around be arranged at this construction groove around collect this construction powder that this paving powder operation and print job kick up and fall into, this first air intake device accelerates to draw the construction powder dust fall collection that guiding falls into by this powder falling dust proof member.
10. stereoscopic moulding mechanism according to claim 1; it is characterized in that this attending device dustproof construction comprises cage envelope dirt parts and a cleaning dust proof member; implement proofing dust and protecting when this cage envelope dirt parts are idle in this cage unit, this cleaning dust proof member is struck off unit enforcement proofing dust and protecting when idle in this.
11. stereoscopic moulding mechanism according to claim 1, the operating environment dustproof construction that it is characterized in that this dust guard comprises a perforate, a pipeline and one second air intake device, this perforate is arranged on the construction pedestal, and this pipeline is linked between this perforate and this second air intake device, use making this second air intake device inside processing environment produce a negative pressure, this construction powder that flies upward with absorption.
12. stereoscopic moulding mechanism according to claim 1, the storage powder groove dustproof construction that it is characterized in that this dust guard includes a set ramp structure in a lid, a flexible member and this temporary storage powder groove, but this lid is arranged at notch top of this temporary storage powder groove and closes this temporary notch that stores up the powder groove by this flexible member with the left and right translation that should temporary accumulator tank be connected, with sealing should temporary storage powder groove in dust fall fly upward, and this ramp structure in order to guide this fall into the construction powder reduce the direct powder falling of gravity lower should temporary storage powder groove in dirt raise.
13. utilize the described stereoscopic moulding mechanism of any one in claim 1 to 12 to carry out the method for stereo shaping, the method comprises the following step:
(a) this confession powder groove that is arranged at a first side of this construction platform provides a construction powder to this first temporary storage powder groove;
(b) this print components moves towards a second side of this construction platform;
(c) this construction powder in this first temporary storage powder groove is tiled to this construction platform;
(d) this confession powder groove that is arranged at a second side of this construction platform provides this construction powder to this second temporary storage powder groove;
(e) this print components moves towards this first side and carry out spray printing on the construction platform;
(f) this construction powder in this second temporary storage powder groove is tiled to this construction platform;
(g) this confession powder groove that is arranged at this first side of this construction platform provides this construction powder to this first temporary storage powder groove;
(h) this print components moves and spray printing one liquid on this construction platform towards this second side;
(i) judge whether to complete the production of this solid object, when result when being no repeated execution of steps (c) to (h).
14. stereoforming method according to claim 13 is characterized in that in this step (i) when judgment result is that when being, completed product run step, an and jacking equipment will drive this construction platform and rise, to carry out pickup in a construction groove.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910130570 CN101850619B (en) | 2009-03-31 | 2009-03-31 | Stereoscopic moulding mechanism and method thereof |
| US12/659,707 US8545209B2 (en) | 2009-03-31 | 2010-03-18 | Three-dimensional object forming apparatus and method for forming three-dimensional object |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200910130570 CN101850619B (en) | 2009-03-31 | 2009-03-31 | Stereoscopic moulding mechanism and method thereof |
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| Publication Number | Publication Date |
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| CN101850619A CN101850619A (en) | 2010-10-06 |
| CN101850619B true CN101850619B (en) | 2013-06-12 |
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| CN 200910130570 Expired - Fee Related CN101850619B (en) | 2009-03-31 | 2009-03-31 | Stereoscopic moulding mechanism and method thereof |
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| CN102602146B (en) * | 2012-03-02 | 2014-07-23 | 华中科技大学 | Piezoelectric-type three-dimensional printing forming system and forming method thereof |
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| CN112222357A (en) * | 2020-09-28 | 2021-01-15 | 武汉阿尔法激光有限公司 | High-speed 3D printing structure and printing method |
| WO2023231469A1 (en) * | 2022-05-30 | 2023-12-07 | 共享智能装备有限公司 | Powder spreading apparatus, 3d printing device, and 3d printing system |
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