CN105365219A - 3d printer and printing method thereof - Google Patents
3d printer and printing method thereof Download PDFInfo
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- CN105365219A CN105365219A CN201510809664.7A CN201510809664A CN105365219A CN 105365219 A CN105365219 A CN 105365219A CN 201510809664 A CN201510809664 A CN 201510809664A CN 105365219 A CN105365219 A CN 105365219A
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Abstract
The invention discloses a 3D printer and a printing method thereof. The 3D printer comprises a printer body. The printer body comprises a cabinet body and a bracket arranged on one side of the cabinet body; a laser scanning device is arranged on the bottom face of the cabinet body, a reflector is arranged in the middle of the bottom face of the cabinet body, a resin tank is arranged over the reflector, and a piece of high-transparent silica glass is fixedly arranged on the bottom face of the resin tank; the high-transparent silica glass is fixedly arranged on an iron plate, a suspension platform is arranged over the resin tank, the iron plate is connected with a first lifting device, and the suspension platform is connected a second lifting device; due to the fact that the first lifting device and the second lifting device are in a linkage mode, the 3D printer and the printing method thereof not only simplify the control process, but also are beneficial to precisely controlling the thickness of a resin flake of a product section profile.
Description
Technical field:
The present invention relates to 3D printer technology field, in particular to 3D printer and Method of printing thereof.
Background technology:
Use printer just as printing one envelope letter: dub " printing " button on computer screen, a digital document is just sent on an ink-jet printer, and one deck ink is sprayed onto the surface of paper to form a secondary two dimensional image by it.And when 3D prints, software completes a series of digital slices by CAD technology (CAD), and be sent on 3D printer by these information of cutting into slices, slim for continuous print aspect can be stacked up by the latter, until a solid body is shaping.3D printer and the maximum difference of conventional printer are that " ink " that it uses is out and out raw material.
The form of stacking thin layer has varied.Some 3D printer uses the mode of " ink-jet ".Such as, the 3D printer company of Israel of an Objet by name uses printer head by liquid plastic substance spray very thin for one deck on mold pallet, and this coating processes under being then placed in ultraviolet.Mold pallet declines minimum distance afterwards, comes up for lower one deck is stacking.The company Stratasys that other general headquarters are positioned at Minneapolis city of the U.S. uses one to be called the technology of " fused deposition modeling ", and whole flow process is molten plastic in shower nozzle, then just forms thin layer by the mode of depositing plastic material fiber.
Some systems are also had to use powder particle as print media.Powder particle is sprayed forms the very thin powder bed of one deck on mold pallet, is then cured by the fluid binder sprayed.The technology founding that it also can use one to be called " laser sintered " becomes designated shape.This is the technology that uses in its superposition process maker of German EOS Corp. just also.The Arcam company of Switzerland is then the electron stream melting powder particulate utilized in vacuum.Above-mentioned these are only parts in many molding modes.When run into comprise hole and cantilever such labyrinth time, just need to add gel or other materials in medium to provide support or to be used for taking up space.This part powder by founding, finally only can not need use water or gas washout to fall supporter and just can form hole.Nowadays can be used for the medium wide variety printed, from various plastics to metal, pottery and rubber-like material.Some printer can also in conjunction with different medium, makes that one, the object printed is hard and other end is soft.
SLA (StereoLithographyApparatus) technology is exactly laser three-dimensional engraving technology, is the crystallization of machinery, laser, photochemistry, software, control technology.Based on the principle that photosensitive resin solidifies by UV-irradiation, computer controls laser and successively scans the liquid photosensitive resin of solidification, and the cross section of every one deck solidification is obtained by the three-dimensional CAD model software hierarchy of part, until finally obtain photosensitive resin prototype in kind.Photocureable rapid shaping should be that in 3D printing technique, precision is the highest, and surface is also the most smooth, and the minimum material thickness of this technology can reach 25 microns (0.025 millimeters) at present.But Introduction To Stereolithography also has two deficiencies, first photosensitive resin raw material has certain toxicity, protection is should be noted that when operating personnel use, secondly the prototype of Stereolithography is very good in outward appearance, but intensity aspect still can not compared with real manufactured goods, generally be mainly used in prototype checking aspect, then by a series of subsequent treatment operation, rapid prototyping be converted into technical grade product.In addition, the equipment cost of SLA technology, maintenance cost and material cost are all higher, and therefore, the 3D printer based on photocuring technology is mainly used in professional domain, and domestic desktop domain variability is not applied.
Therefore, SLA3D printer and Method of printing thereof that a kind of rapid shaping is provided is badly in need of, to solve the deficiencies in the prior art.
Application number is the SLA3D printer that the application for a patent for invention of CN201410461645.5 discloses a kind of rapid shaping, comprise SLA3D printer body, SLA3D printer body comprises the cabinet of hollow and the support along cabinet side towards upper extension, the front end, bottom surface of cabinet is provided with laser scanning device, the bottom surface central authorities of described cabinet are provided with speculum, resin storage tank is provided with directly over speculum, the bottom surface of resin storage tank is installed with high quartz glass thoroughly, high quartz glass is thoroughly fixedly arranged on iron plate, iron plate is fixedly connected with the motor be located in cabinet floor, cape is provided with directly over resin storage tank, support is provided with upright slide rail, cape slides up and down along described upright slide rail, also disclose its Method of printing.Compared with prior art, described in foregoing invention application, the shaping speed of printer is fast; Described printer comprises the drop-down frame for movement eliminating vacuum power, and greatly improve yield rate, precision is high, is particularly suitable for making the high baroque prototype of required precision; Described printer arrangement is simple, easy to operate, greatly reduces production cost, can large-scale promotion application.
By technique scheme, after described printer completes a printing action, cape moves on described upright slide rail, meanwhile, driven by motor iron plate is drop-down, and then drives resin storage tank to move down, the vacuum power in resin storage tank is eliminated by this drop-down action, then driven by motor iron plate pull-up, and then drive resin storage tank to move up, carry out the next one and print action.
Summary of the invention:
Technical problem solved by the invention: the SLA3D printer of rapid shaping in prior art, after completing a printing action, cape moves on described upright slide rail, meanwhile, driven by motor iron plate is drop-down, and then drives resin storage tank to move down, the vacuum power in resin storage tank is eliminated by this drop-down action, then driven by motor iron plate pull-up, and then drive resin storage tank to move up, carry out the next one and print action; Above-mentioned upper one prints cape action that action prints 3D printer between action to next and resin storage tank lifting action carries out independently of one another, and control procedure is complicated and be unfavorable for the accurate control of the resin flake thickness of product sectional profile.
For solving the problems of the technologies described above, the invention provides following technical scheme:
D printer, comprise printer body, described printer body comprise hollow chamber cabinet and along described cabinet side towards the support of upper extension, the front end of the bottom of the hollow chamber of described cabinet is provided with laser scanning device, the centre of the bottom of the hollow chamber of described cabinet is provided with speculum, resin storage tank is provided with directly over described speculum, the bottom surface of described resin storage tank is installed with high quartz glass thoroughly, the saturating quartz glass of described height is fixedly arranged on iron plate, an opening is established at the top of described cabinet, described opening is communicated with hollow chamber, described resin storage tank is arranged in the opening at cabinet top,
The bottom of described iron plate is provided with the first lowering or hoisting gear, and the first lowering or hoisting gear drives iron plate lifting;
Be provided with cape directly over described resin storage tank, described support is provided with the second lowering or hoisting gear, and described cape is arranged on the second lowering or hoisting gear, and the second lowering or hoisting gear drives cape lifting;
Described first lowering or hoisting gear comprises the first lifters, the first guide, the first lifting driving wheel, the first power transmission shaft, the first bracing frame, the first worm gear; Described first lifters coordinates with the first guide, and the first guide is arranged on cabinet, and the lifting of the first guide to the first lifters is led; Described first lifters offers horizontally disposed first chute, and described first lifting driving wheel is provided with the first eccentric drive rod, and the first drive rod coordinates with the first chute; Described first lifting driving wheel is arranged on horizontally disposed first power transmission shaft, and described first power transmission shaft is articulated on the first bracing frame, and the first bracing frame is arranged on cabinet; Described first worm gear is arranged on the first power transmission shaft, and the first lifting driving wheel and the first worm gear are arranged on the rear and front end place of the first power transmission shaft respectively;
Described iron plate is arranged in the first lifters;
Described second lowering or hoisting gear comprises the first worm screw, the first threaded rod, the first slide rail, the first slide block; Described first worm screw engages with the first worm gear, the first worm screw and the first threaded rod tandem array, and the first worm screw is positioned at the below of the first threaded rod, and the first worm screw and first threaded rod of tandem array are articulated on support; Described first slide rail is rack-mount, and the first slide rail is vertically arranged, and the first skid is engaged in the first slide rail, and the first slide block offers the first screwed hole be spirally connected with the first threaded rod;
Described cape is arranged on the first slide block; Described first threaded rod connects motor.
By technique scheme, the operation principle of 3D printer of the present invention is as follows:
First, computer is connected with printer body, the three-dimensional CAD model designed is loaded into computer, liquid photosensitive resin is added in resin storage tank, in computer, upper computer software is installed, upper computer software sends beginning print command, and the slave computer software controlled in printer body is started working.
Second, slave computer software controls laser scanning device and gives off laser beam, laser beam reflexes to bottom the resin storage tank directly over mirror through speculum, laser scanning device can under the control of slave computer software, laser beam is scanned bottom resin storage tank according to the requirement of cross section profile, the saturating quartz glass of height bottom laser beam transparent resin storage tank reacts with the photosensitive resin in the resin storage tank be irradiated to, and makes to be solidified by the photosensitive resin of scanning area, thus obtains the resin flake of this cross section profile.
3rd, ground floor resin flake can be pasted onto on the cape that develops from top to bottom bottom resin storage tank, then resin storage tank can under the driving of the first lowering or hoisting gear the open and close movement once height of one deck resin flake and cape rises under the driving of the second lowering or hoisting gear, the resin flake solidified just cover by the new liquid resin of one deck, to carry out second layer laser scanning solidification, one deck resin flake of new solidification is bonded on front one deck, so repeats endlessly, until whole formed product is complete.
4th, above-mentioned resin storage tank under the driving of the first lowering or hoisting gear open and close movement once and cape rises under the driving of the second lowering or hoisting gear, the operation principle of one deck resin flake height is as follows: motor action, motor drives the first threaded rod to rotate, first threaded rod drives the first slide block to rise in the first slide rail the height of one deck resin flake, and the first slide block drives cape to rise the height of one deck resin flake, while above-mentioned first threaded rod rotates, first threaded rod drives the first worm screw to rotate, first worm drive first worm gear rotates, first worm gear drives the first power transmission shaft to rotate, first power transmission shaft drives the first lifting driving wheel to rotate, peak is reset to again after first drive rod of the first lifting drive wheel on it is rotated a circle by peak, the first drive rod rotated a circle drives the first lifters first to decline in the first guide reset of rising again, first the decline action iron plate of ordering about on it resetted of rising again of first lifters first declines reset of rising again, iron plate is ordered about resin storage tank by high quartz glass thoroughly and first to be declined reset of rising again, namely, resin storage tank open and close movement once.
Pass through technique scheme, described first lowering or hoisting gear and the second lowering or hoisting gear essence are a Coupled motion mechanism, make cape action and an interlock of resin storage tank lifting action printing the 3D printer between action to next printing action, not only make control procedure simplify, and be conducive to the accurate control of resin flake thickness of product sectional profile.
Illustrate the one of the first lowering or hoisting gear of interlock and the second lowering or hoisting gear as the present invention, described first lowering or hoisting gear also comprises the second lifters, the second guide, the second lifting driving wheel, second driving shaft, the second bracing frame, the second worm gear; Described second lifters coordinates with the second guide, and the second guide is arranged on cabinet, and the lifting of the second guide to the second lifters is led; Described second lifters offers horizontally disposed second chute, and described second lifting driving wheel is provided with the second eccentric drive rod, and the second drive rod coordinates with the second chute; Described second lifting driving wheel is arranged on horizontally disposed second driving shaft, and described second driving shaft is articulated on the second bracing frame, and the second bracing frame is arranged on cabinet; Described second worm gear is arranged on second driving shaft, and the second lifting driving wheel and the second worm gear are arranged on the rear and front end place of second driving shaft respectively; The 3rd guide that described first lowering or hoisting gear also comprises the 3rd lifters, lead to the 3rd lifters, the 4th lifters, the 4th guide that the 4th lifters is led; Described 3rd guide and the 4th guide are arranged on cabinet; Described iron plate is arranged in the second lifters, the 3rd lifters, the 4th lifters, and described first lifters, the second lifters, the 3rd lifters, the 4th lifters lay respectively at four angles place of iron plate, and described iron plate is square frame-shaped; Described first lowering or hoisting gear also comprises the first synchronous pulley and the second synchronous pulley; Described first synchronous pulley is arranged on the first power transmission shaft, and the second synchronous pulley is arranged on second driving shaft, and the first synchronous pulley and the second synchronous pulley are connected by Timing Belt; Described second lowering or hoisting gear also comprises the second worm screw, the second threaded rod, the second slide rail, the second slide block; Described second worm screw engages with the second worm gear, the second worm screw and the second threaded rod tandem array, and the second worm screw is positioned at the below of the second threaded rod, and the second worm screw and second threaded rod of tandem array are articulated on support; Described second slide rail is rack-mount, and the second slide rail is vertically arranged, and the second skid is engaged in the second slide rail, and the second slide block offers the second screwed hole be spirally connected with the second threaded rod; Described first slide block and the second slide block are linked together by a plate, and described cape is arranged on connecting plate.
By above-mentioned to the first lowering or hoisting gear of interlock and the explanation of the second lowering or hoisting gear, described resin storage tank under the driving of the first lowering or hoisting gear open and close movement once and cape rises under the driving of the second lowering or hoisting gear, the operation principle of one deck resin flake height is as follows: motor action, motor drives the first threaded rod to rotate, first threaded rod drives the first worm screw to rotate, first worm drive first worm gear rotates, first worm gear drives the first power transmission shaft to rotate, first power transmission shaft drives the first synchronous pulley to rotate, first synchronous pulley drives the second synchronous pulley to rotate by Timing Belt, second synchronous pulley drives second driving shaft to rotate, second driving shaft drives the second worm gear to rotate, second worm-gear driven second worm screw rotates, second worm screw drives the second threaded rod to rotate, so, first threaded rod and the second threaded rod respectively and synchronous first slide block that drives to rise in the first slide rail the height of one deck resin flake, second slide block rises the height of one deck resin flake in the second slide rail, the connecting plate connecting the first slide block and the second slide block drives cape to rise the height of one deck resin flake, while above-mentioned first power transmission shaft and second driving shaft rotate, first power transmission shaft drives the first lifting driving wheel to rotate, second driving shaft drives the second lifting driving wheel synchronous rotary, peak is reset to again after first drive rod of the first lifting drive wheel on it is rotated a circle by peak, in the same manner, peak is reset to again after second drive rod of the second lifting drive wheel on it is rotated a circle by peak, the first drive rod rotated a circle and the second drive rod drive the first lifters and the second lifters first to decline reset of rising again respectively, first the decline action iron plate of ordering about on it resetted of rising again of first lifters and the second lifters first declines reset of rising again, rise the again action that resets of first the declining of iron plate drives the 3rd lifters first to decline in the 3rd guide reset of rising again, 4th lifters first declines reset of rising again in the 4th guide, iron plate is ordered about resin storage tank by high quartz glass thoroughly and first to be declined reset of rising again, namely, resin storage tank open and close movement once.Wherein, described iron plate is square frame-shaped, with facilitate laser from below the high quartz glass thoroughly of directive inject again in resin storage tank.
Illustrate the one of laser scanning device as the present invention, described laser scanning device comprises bluish violet light laser and laser scanning galvanometer; Described laser scanning galvanometer is L-type or U-shaped, to improve Scan orientation precision.
Illustrate the one of speculum as the present invention, described speculum is 45 ° of settings.
Illustrate the one of resin storage tank as the present invention, the bottom surface of described resin storage tank is provided with adherent layer; Described adherent layer is any one or several combinations in dimethyl silicone polymer adherent layer, mould release membrance adherent layer or Teflon adherent layer.Adherent layer can prevent the resin-bonded in the bottom of resin storage tank of solidification.
Illustrate as one of the present invention, 3D printer of the present invention also comprises housing, and described case lid is located at outside described 3D printer body.
Illustrate as one of the present invention, 3D printer of the present invention also comprises the computer being mounted with three-dimensional CAD model, and described computer is connected by USB data line with described 3D printer body, for controlling process and the precision of printing.
By the technical scheme of above-mentioned 3D printer, the invention provides the Method of printing of 3D printer, step is as follows:
Step one, computer is connected with printer body, the three-dimensional CAD model designed is loaded into computer, liquid photosensitive resin is added in resin storage tank, in computer, upper computer software is installed, upper computer software sends beginning print command, and the slave computer software controlled in printer body is started working;
Step 2, slave computer software controls the laser beam that bluish violet light laser sends 305nm or 455nm, laser beam reflexes to bottom the resin storage tank directly over mirror through speculum, laser scanning galvanometer can under the control of slave computer software, laser beam is scanned bottom resin storage tank according to the requirement of cross section profile, the saturating quartz glass of height bottom laser beam transparent resin storage tank reacts with the photosensitive resin in the resin storage tank be irradiated to, make to be solidified by the photosensitive resin of scanning area, thus obtain the resin flake of this cross section profile;
Step 3, ground floor resin flake can be pasted onto on the cape that develops from top to bottom bottom resin storage tank, then resin storage tank can under the driving of the first lowering or hoisting gear the open and close movement once height of one deck resin flake and cape rises under the driving of the second lowering or hoisting gear, the resin flake solidified just cover by the new liquid resin of one deck, to carry out second layer laser scanning solidification, one deck resin flake of new solidification is bonded on front one deck, so repeats endlessly, until whole formed product is complete.
3D printer provided by the invention and Method of printing thereof, compared with prior art, have following beneficial effect:
The first, the SLA3D printer of rapid shaping of the present invention adopts laser curing, and shaping speed is fast;
The second, the SLA3D printer of rapid shaping of the present invention comprises the drop-down frame for movement eliminating vacuum power, greatly improves yield rate;
3rd, SLA3D printer body of the present invention and device have the computer of three-dimensional CAD model to be connected, and by controlling progress and the precision of printing in computer, can improve efficiency and the precision of printing widely, be particularly suitable for making required precision high, baroque prototype;
4th, SLA3D printer arrangement of the present invention is simple, easy to operate, greatly reduces production and use cost, can large-scale industrialization promotion apply;
5th, the Method of printing of SLA3D printer of the present invention, precision is high, speed is fast, and cost is low.
Accompanying drawing illustrates:
Below in conjunction with accompanying drawing, the present invention is described further:
Fig. 1 is the structure diagram of 3D printer of the present invention;
The combining structure schematic diagram of Fig. 2 the first lowering or hoisting gear and second lowering or hoisting gear involved by the present invention.
Symbol description in figure:
10, cabinet; 11, support;
20, laser scanning device; 21, bluish violet light laser; 22, laser scanning galvanometer;
30, speculum;
40, resin storage tank; 41, high quartz glass thoroughly; 42, iron plate;
50, cape;
61, the first lifters; 611, the 3rd lifters; 610, the first chute; 62, the first guide; 621, the 3rd guide; 63, the first lifting driving wheel; 630, the first drive rod; 64, the first power transmission shaft; 65, the first bracing frame; 66, the first worm gear; 671, the first synchronous pulley; 672, the second synchronous pulley; 673, Timing Belt;
71, the first worm screw; 72, the first threaded rod; 73, the first slide rail; 74, the first slide block; 75, connecting plate.
Detailed description of the invention:
3D printer, comprises printer body, housing, is mounted with the computer of three-dimensional CAD model.
As Fig. 1, described printer body comprise hollow chamber cabinet 10 and along described cabinet side towards the support 11 of upper extension, the front end of the bottom of the hollow chamber of described cabinet is provided with laser scanning device 20, the centre of the bottom of the hollow chamber of described cabinet is provided with speculum 30, resin storage tank 40 is provided with directly over described speculum, the bottom surface of described resin storage tank is installed with high quartz glass 41 thoroughly, the saturating quartz glass of described height is fixedly arranged on iron plate 42, an opening is established at the top of described cabinet, described opening is communicated with hollow chamber, described resin storage tank is arranged in the opening at cabinet top.
The bottom of described iron plate is provided with the first lowering or hoisting gear, and the first lowering or hoisting gear drives iron plate lifting.Be provided with cape 50 directly over described resin storage tank, described support is provided with the second lowering or hoisting gear, and described cape is arranged on the second lowering or hoisting gear, and the second lowering or hoisting gear drives cape lifting.
As Fig. 2, described first lowering or hoisting gear comprises the first lifters 61, first guide 62, first lifting driving wheel 63, first power transmission shaft 64, first bracing frame 65, first worm gear 66; Described first lifters coordinates with the first guide, and the first guide is arranged on cabinet, and the lifting of the first guide to the first lifters is led; Described first lifters offers horizontally disposed first chute 610, and described first lifting driving wheel is provided with the first eccentric drive rod 630, first drive rod and coordinates with the first chute; Described first lifting driving wheel is arranged on horizontally disposed first power transmission shaft, and described first power transmission shaft is articulated on the first bracing frame, and the first bracing frame is arranged on cabinet; Described first worm gear is arranged on the first power transmission shaft, and the first lifting driving wheel and the first worm gear are arranged on the rear and front end place of the first power transmission shaft respectively.
With reference to figure 2, described first lowering or hoisting gear also comprises the second lifters, the second guide, the second lifting driving wheel, second driving shaft, the second bracing frame, the second worm gear; Described second lifters coordinates with the second guide, and the second guide is arranged on cabinet, and the lifting of the second guide to the second lifters is led; Described second lifters offers horizontally disposed second chute, and described second lifting driving wheel is provided with the second eccentric drive rod, and the second drive rod coordinates with the second chute; Described second lifting driving wheel is arranged on horizontally disposed second driving shaft, and described second driving shaft is articulated on the second bracing frame, and the second bracing frame is arranged on cabinet; Described second worm gear is arranged on second driving shaft, and the second lifting driving wheel and the second worm gear are arranged on the rear and front end place of second driving shaft respectively.
As Fig. 2, described first lowering or hoisting gear also comprises the 3rd lifters 611, the 3rd guide 621 that the 3rd lifters is led, the 4th lifters, the 4th guide that the 4th lifters is led; Described 3rd guide and the 4th guide are arranged on cabinet.Described iron plate 42 is arranged in the first lifters, the second lifters, the 3rd lifters, the 4th lifters, and described first lifters, the second lifters, the 3rd lifters, the 4th lifters lay respectively at four angles place of iron plate, and described iron plate is square frame-shaped.
As Fig. 2, described first lowering or hoisting gear also comprises the first synchronous pulley 671 and the second synchronous pulley 672; Described first synchronous pulley is arranged on the first power transmission shaft, and the second synchronous pulley is arranged on second driving shaft, and the first synchronous pulley and the second synchronous pulley are connected by Timing Belt 673.
As Fig. 2, described second lowering or hoisting gear comprises the first worm screw 71, first threaded rod 72, first slide rail 73, first slide block 74; Described first worm screw engages with the first worm gear 66, the first worm screw and the first threaded rod tandem array, and the first worm screw is positioned at the below of the first threaded rod, and the first worm screw and first threaded rod of tandem array are articulated on support; Described first slide rail is rack-mount, and the first slide rail is vertically arranged, and the first skid is engaged in the first slide rail, and the first slide block offers the first screwed hole be spirally connected with the first threaded rod.
With reference to figure 2, described second lowering or hoisting gear also comprises the second worm screw, the second threaded rod, the second slide rail, the second slide block; Described second worm screw engages with the second worm gear, the second worm screw and the second threaded rod tandem array, and the second worm screw is positioned at the below of the second threaded rod, and the second worm screw and second threaded rod of tandem array are articulated on support; Described second slide rail is rack-mount, and the second slide rail is vertically arranged, and the second skid is engaged in the second slide rail, and the second slide block offers the second screwed hole be spirally connected with the second threaded rod.
Described first slide block and the second slide block are linked together by a plate 75, and described cape 50 is arranged on connecting plate.Described first threaded rod connects motor.
As Fig. 1, described laser scanning device 20 comprises bluish violet light laser 21 and laser scanning galvanometer 22; Described laser scanning galvanometer is L-type or U-shaped.
As Fig. 1, described speculum 30 is in 45 ° of settings.
The bottom surface of described resin storage tank 40 is provided with adherent layer; Described adherent layer is any one or several combinations in dimethyl silicone polymer adherent layer, mould release membrance adherent layer or Teflon adherent layer.
Described case lid is located at outside described printer body.
Described computer is connected by USB data line with described printer body.
The Method of printing of 3D printer, step is as follows:
Step one, computer is connected with printer body, the three-dimensional CAD model designed is loaded into computer, liquid photosensitive resin is added in resin storage tank 40, in computer, upper computer software is installed, upper computer software sends beginning print command, and the slave computer software controlled in printer body is started working;
Step 2, slave computer software controls the laser beam that bluish violet light laser 21 sends 305nm or 455nm, laser beam reflexes to bottom the resin storage tank directly over mirror through speculum 30, laser scanning galvanometer 22 can under the control of slave computer software, laser beam is scanned bottom resin storage tank according to the requirement of cross section profile, the saturating quartz glass 41 of height bottom laser beam transparent resin storage tank reacts with the photosensitive resin in the resin storage tank be irradiated to, make to be solidified by the photosensitive resin of scanning area, thus obtain the resin flake of this cross section profile;
Step 3, ground floor resin flake can be pasted onto on the cape 50 that develops from top to bottom bottom resin storage tank, then resin storage tank can under the driving of the first lowering or hoisting gear the open and close movement once height of one deck resin flake and cape rises under the driving of the second lowering or hoisting gear, the resin flake solidified just cover by the new liquid resin of one deck, to carry out second layer laser scanning solidification, one deck resin flake of new solidification is bonded on front one deck, so repeats endlessly, until whole formed product is complete.Wherein, described resin storage tank under the driving of the first lowering or hoisting gear open and close movement once and cape rises under the driving of the second lowering or hoisting gear, the workflow of one deck resin flake height is as follows: motor action, motor drives the first threaded rod 72 to rotate, first threaded rod drives the first worm screw 71 to rotate, first worm drive first worm gear 66 rotates, first worm gear drives the first power transmission shaft 64 to rotate, first power transmission shaft drives the first synchronous pulley 671 to rotate, first synchronous pulley drives the second synchronous pulley 672 to rotate by Timing Belt 673, second synchronous pulley drives second driving shaft to rotate, second driving shaft drives the second worm gear to rotate, second worm-gear driven second worm screw rotates, second worm screw drives the second threaded rod to rotate, so, first threaded rod and the second threaded rod are distinguished and the synchronous height driving the first slide block 74 rising one deck resin flake in the first slide rail 73, second slide block rises the height of one deck resin flake in the second slide rail, the connecting plate 75 connecting the first slide block and the second slide block drives cape 50 to rise the height of one deck resin flake, while above-mentioned first power transmission shaft and second driving shaft rotate, first power transmission shaft 64 drives the first lifting driving wheel 63 to rotate, second driving shaft drives the second lifting driving wheel synchronous rotary, peak is reset to again after first drive rod 630 of the first lifting drive wheel on it is rotated a circle by peak, in the same manner, peak is reset to again after second drive rod of the second lifting drive wheel on it is rotated a circle by peak, the first drive rod rotated a circle and the second drive rod drive the first lifters 61 and the second lifters first to decline reset of rising again respectively, first the decline action iron plate 42 of ordering about on it resetted of rising again of first lifters and the second lifters first declines reset of rising again, rise the again action that resets of first the declining of iron plate drives the 3rd lifters 611 first to decline in the 3rd guide 621 reset of rising again, 4th lifters first declines reset of rising again in the 4th guide, iron plate is ordered about resin storage tank 40 by high quartz glass 41 thoroughly and first to be declined reset of rising again, namely, resin storage tank open and close movement once.
Above content is only better embodiment of the present invention, and for those of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, this description should not be construed as limitation of the present invention.
Claims (9)
1.3D printer, comprise printer body, described printer body comprises the cabinet (10) of hollow chamber and the support (11) along described cabinet side towards upper extension, the front end of the bottom of the hollow chamber of described cabinet is provided with laser scanning device (20), the centre of the bottom of the hollow chamber of described cabinet is provided with speculum (30), resin storage tank (40) is provided with directly over described speculum, the bottom surface of described resin storage tank is installed with high quartz glass (41) thoroughly, the saturating quartz glass of described height is fixedly arranged on iron plate (42), an opening is established at the top of described cabinet, described opening is communicated with hollow chamber, described resin storage tank is arranged in the opening at cabinet top,
The bottom of described iron plate is provided with the first lowering or hoisting gear, and the first lowering or hoisting gear drives iron plate lifting;
Be provided with cape (50) directly over described resin storage tank, described support is provided with the second lowering or hoisting gear, and described cape is arranged on the second lowering or hoisting gear, and the second lowering or hoisting gear drives cape lifting; It is characterized in that:
Described first lowering or hoisting gear comprises the first lifters (61), the first guide (62), the first lifting driving wheel (63), the first power transmission shaft (64), the first bracing frame (65), the first worm gear (66); Described first lifters coordinates with the first guide, and the first guide is arranged on cabinet, and the lifting of the first guide to the first lifters is led; Described first lifters offers horizontally disposed first chute (610), and described first lifting driving wheel is provided with eccentric the first drive rod (630), and the first drive rod coordinates with the first chute; Described first lifting driving wheel is arranged on horizontally disposed first power transmission shaft, and described first power transmission shaft is articulated on the first bracing frame, and the first bracing frame is arranged on cabinet; Described first worm gear is arranged on the first power transmission shaft, and the first lifting driving wheel and the first worm gear are arranged on the rear and front end place of the first power transmission shaft respectively;
Described iron plate is arranged in the first lifters;
Described second lowering or hoisting gear comprises the first worm screw (71), the first threaded rod (72), the first slide rail (73), the first slide block (74); Described first worm screw engages with the first worm gear (66), the first worm screw and the first threaded rod tandem array, and the first worm screw is positioned at the below of the first threaded rod, and the first worm screw and first threaded rod of tandem array are articulated on support; Described first slide rail is rack-mount, and the first slide rail is vertically arranged, and the first skid is engaged in the first slide rail, and the first slide block offers the first screwed hole be spirally connected with the first threaded rod;
Described cape is arranged on the first slide block; Described first threaded rod connects motor.
2. 3D printer as claimed in claim 1, is characterized in that:
Described first lowering or hoisting gear also comprises the second lifters, the second guide, the second lifting driving wheel, second driving shaft, the second bracing frame, the second worm gear; Described second lifters coordinates with the second guide, and the second guide is arranged on cabinet, and the lifting of the second guide to the second lifters is led; Described second lifters offers horizontally disposed second chute, and described second lifting driving wheel is provided with the second eccentric drive rod, and the second drive rod coordinates with the second chute; Described second lifting driving wheel is arranged on horizontally disposed second driving shaft, and described second driving shaft is articulated on the second bracing frame, and the second bracing frame is arranged on cabinet; Described second worm gear is arranged on second driving shaft, and the second lifting driving wheel and the second worm gear are arranged on the rear and front end place of second driving shaft respectively;
The 3rd guide (621) that described first lowering or hoisting gear also comprises the 3rd lifters (611), lead to the 3rd lifters, the 4th lifters, the 4th guide that the 4th lifters is led; Described 3rd guide and the 4th guide are arranged on cabinet;
Described iron plate (42) is arranged in the second lifters, the 3rd lifters, the 4th lifters, and described first lifters, the second lifters, the 3rd lifters, the 4th lifters lay respectively at four angles place of iron plate, and described iron plate is square frame-shaped;
Described first lowering or hoisting gear also comprises the first synchronous pulley (671) and the second synchronous pulley (672); Described first synchronous pulley is arranged on the first power transmission shaft, and the second synchronous pulley is arranged on second driving shaft, and the first synchronous pulley and the second synchronous pulley are connected by Timing Belt (673);
Described second lowering or hoisting gear also comprises the second worm screw, the second threaded rod, the second slide rail, the second slide block; Described second worm screw engages with the second worm gear, the second worm screw and the second threaded rod tandem array, and the second worm screw is positioned at the below of the second threaded rod, and the second worm screw and second threaded rod of tandem array are articulated on support; Described second slide rail is rack-mount, and the second slide rail is vertically arranged, and the second skid is engaged in the second slide rail, and the second slide block offers the second screwed hole be spirally connected with the second threaded rod;
Described first slide block and the second slide block are linked together by a plate (75), and described cape (50) is arranged on connecting plate.
3. 3D printer as claimed in claim 1, is characterized in that: described laser scanning device (20) comprises bluish violet light laser (21) and laser scanning galvanometer (22); Described laser scanning galvanometer is L-type or U-shaped.
4. 3D printer as claimed in claim 1, is characterized in that: described speculum (30) is in 45 ° of settings.
5. 3D printer as claimed in claim 1, is characterized in that: the bottom surface of described resin storage tank (40) is provided with adherent layer; Described adherent layer is any one or several combinations in dimethyl silicone polymer adherent layer, mould release membrance adherent layer or Teflon adherent layer.
6. 3D printer as claimed in claim 1, it is characterized in that: also comprise housing, described case lid is located at outside described printer body.
7. 3D printer as claimed in claim 1, it is characterized in that: also comprise the computer being mounted with three-dimensional CAD model, described computer is connected by USB data line with described printer body.
8. the Method of printing of the 3D printer according to any one of claim 1 to 7, is characterized in that: step is as follows:
Step one, computer is connected with printer body, the three-dimensional CAD model designed is loaded into computer, liquid photosensitive resin is added in resin storage tank (40), in computer, upper computer software is installed, upper computer software sends beginning print command, and the slave computer software controlled in printer body is started working;
Step 2, slave computer software controls the laser beam that laser scanning device (20) sends 305nm or 455nm, laser beam reflexes to bottom the resin storage tank directly over mirror through speculum (30), laser scanning device can under the control of slave computer software, laser beam is scanned bottom resin storage tank according to the requirement of cross section profile, the saturating quartz glass of height bottom laser beam transparent resin storage tank (41) reacts with the photosensitive resin in the resin storage tank be irradiated to, make to be solidified by the photosensitive resin of scanning area, thus obtain the resin flake of this cross section profile;
Step 3, ground floor resin flake can be pasted onto on the cape (50) that develops from top to bottom bottom resin storage tank, then resin storage tank can under the driving of the first lowering or hoisting gear the open and close movement once height of one deck resin flake and cape rises under the driving of the second lowering or hoisting gear, the resin flake solidified just cover by the new liquid resin of one deck, to carry out second layer laser scanning solidification, one deck resin flake of new solidification is bonded on front one deck, so repeat endlessly, until whole formed product is complete.
9. the Method of printing of 3D printer as claimed in claim 3, is characterized in that: step is as follows:
Step one, computer is connected with printer body, the three-dimensional CAD model designed is loaded into computer, liquid photosensitive resin is added in resin storage tank (40), in computer, upper computer software is installed, upper computer software sends beginning print command, and the slave computer software controlled in printer body is started working;
Step 2, slave computer software controls the laser beam that bluish violet light laser (21) sends 305nm or 455nm, laser beam reflexes to bottom the resin storage tank directly over mirror through speculum (30), laser scanning galvanometer (22) can under the control of slave computer software, laser beam is scanned bottom resin storage tank according to the requirement of cross section profile, the saturating quartz glass of height bottom laser beam transparent resin storage tank (41) reacts with the photosensitive resin in the resin storage tank be irradiated to, make to be solidified by the photosensitive resin of scanning area, thus obtain the resin flake of this cross section profile,
Step 3, ground floor resin flake can be pasted onto on the cape (50) that develops from top to bottom bottom resin storage tank, then resin storage tank can under the driving of the first lowering or hoisting gear the open and close movement once height of one deck resin flake and cape rises under the driving of the second lowering or hoisting gear, the resin flake solidified just cover by the new liquid resin of one deck, to carry out second layer laser scanning solidification, one deck resin flake of new solidification is bonded on front one deck, so repeat endlessly, until whole formed product is complete.
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| CN201510809664.7A CN105365219B (en) | 2015-11-20 | 2015-11-20 | 3D printer and its Method of printing |
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| TWI630090B (en) * | 2017-07-17 | 2018-07-21 | 國立虎尾科技大學 | Plating and resin bath with plating |
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| CN111331840A (en) * | 2020-05-07 | 2020-06-26 | 恒通西交智能机器(广东)有限公司 | Multi-optical-path photocuring 3D printing equipment |
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| CN114087560A (en) * | 2021-11-26 | 2022-02-25 | 深圳市洋明达科技有限公司 | Photocuring 3D printer base light diffusion structure |
| CN114087560B (en) * | 2021-11-26 | 2024-05-28 | 深圳市洋明达科技有限公司 | Light diffusion structure of base of photo-curing 3D printer |
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