CN103847104A - Three-dimensional waxing printer and using method thereof - Google Patents

Three-dimensional waxing printer and using method thereof Download PDF

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Publication number
CN103847104A
CN103847104A CN201410085179.5A CN201410085179A CN103847104A CN 103847104 A CN103847104 A CN 103847104A CN 201410085179 A CN201410085179 A CN 201410085179A CN 103847104 A CN103847104 A CN 103847104A
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CN
China
Prior art keywords
described
direction
printer
directions
guide rail
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Application number
CN201410085179.5A
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Chinese (zh)
Inventor
李红宾
王太勇
张雷
李朋林
陈阳
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天津大学
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Priority to CN201410085179.5A priority Critical patent/CN103847104A/en
Publication of CN103847104A publication Critical patent/CN103847104A/en

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Abstract

The invention discloses a three-dimensional waxing printer and a using method thereof. The printer comprises a rack, wherein pairwise-opposite X-direction and Y-direction moving shafts are arranged at the upper layer of the rack; the X-direction and Y-direction moving shafts are respectively provided with a slider and are respectively provided with X-direction and Y-direction guide rails by the sliders; a printer nozzle connected with a material storage tank at the lower layer of the rack through a material delivery pipe is arranged at the overlapped part of the X-direction and Y-direction guide rails; the material storage tank is connected with a peristaltic pump; a pair of Z-direction moving screw rods, which is driven by a Z-direction moving control motor and forms a moving pair together with a workbench, is arranged between the upper layer and the lower layer of the rack. The method comprises the following steps: assembling the printer, mixing raw materials, setting the transfer capacity of the raw materials, adjusting the height of the workbench, and printing. Multiple defects of the prior art are overcome; compared with the existing printers, the three-dimensional waxing printer is simple in structure and convenient to manufacture, raw materials can be supplied continuously, wax can be conveyed uniformly, the processing time is short, the processing cost is low, and the printing effect and the processing precision are good.

Description

A kind of three-dimensional waxing printer and using method thereof

Technical field

The present invention relates to a kind of wax transmission and print structure of three-dimensional printer, in particular, the present invention relates to a kind of waxing printer of the novel three-dimensional for mechanical engineering technical field and using method thereof.

Background technology

Current three-dimensional waxing printer is to adopt air pressure deposition technique or fusion sediment technology, by granular heat-fusible materials heating and melting, by extruding with the shower nozzle of a minute nozzle mostly.Described shower nozzle can move along the direction of X, Y-axis, and workbench moves up and down along Z-direction.If the temperature of heat-fusible materials all the time the temperature of a little higher than solidification temperature and moulding section slightly lower than solidification temperature, just just can ensure after heat-fusible materials extrusion nozzle can be immediately with together with the deposition clinkering of last aspect.After the deposition of an aspect completes, workbench is along the predetermined increment thickness of a layer that declines, then continues melt-blown deposition, until complete the printing of whole solid modelling.

The technical process of described air pressure deposition technique is: moulding material is heated to and is low viscous molten condition, adopt compressed air as power source, melted material is extruded by shower nozzle.

The technical process of described fusion sediment technology is: solid core wire material raw material are wrapped on feed roller, are rotated and utilized the frictional force between described feed roller and silk material that a material is sent to the outlet of shower nozzle by motor driving feed roller.For making a material energy smoothly, delivered to exactly the inner chamber of shower nozzle by feed rod, between described feed rod and shower nozzle, be provided with a fairlead that adopts low-friction material to make, the front end of shower nozzle be provided with can make a material be heated melting (melt temperature of melting die cast wax silk is 74 DEG C, the melt temperature of machined wax silk is 96 DEG C, vistanex silk is 106 DEG C, polyamide filament is 155 DEG C) resistance wire type heater, a silk material for melting exports by shower nozzle that (internal diameter is 0.25~1.32mm, determine with material category and feeding speed) be coated on workbench, and in cooling rear formation interface profile.

The problem that aforementioned two kinds of deposition techniques exist is as follows:

(1), in air pressure deposition technique, large and complicated as the compressed air unit volume of power source, the printer of producing is the large and complex structure of corresponding volume ratio also.In addition, owing to adopting gas that power is provided, therefore storage tank must seal, so, in the time running into the situation that print procedure grows, cannot in storage tank, fill raw material in time, can only wait the raw material in storage tank to be finished just and can to fill.

(2) in fusion sediment technology, make the heater power of raw materials melt can not be too large, therefore a silk material used is generally thermoplastic or the wax that fusing point is not too high, but the intensity of wax Cheng Sihou is very low, cannot transmit to the exit of shower nozzle by feed roller.

In order to solve above problem (2), those skilled in the art have studied a kind of method of utilizing screw rod to carry out wax transmission, granular wax is transported to shower nozzle place by the pressure producing while utilizing screw rod rotation, and heater is arranged in the process of transporting or shower nozzle position, make granular wax become molten after heating, the pressure of recycling screw rod is extruded the wax of melting, but this method still exists defect:

(1) because the shower nozzle of printer is less, the precision of printed product needs to control in addition, therefore not only small but also its structure must be meticulous for the screw design in shower nozzle, therefore, the accuracy of manufacture of screw rod is difficult for ensureing.

(2) extruding force and the backflow situation of the molten wax of considering, same screw rod must carry out segment design and processing, and the diameter of each section, groove depth and the anglec of rotation are not identical, therefore, the manufacturing cost of screw rod is very high, causes the cost of printer also to improve thereupon.

Summary of the invention

Problem to be solved by this invention is exactly the many defects that overcome prior art, and a kind of three-dimensional waxing printer and using method thereof that has changed state and the transmission means of wax and reduce manufacturing cost under the condition that does not change printing precision is provided for this reason.

Technical scheme of the present invention is:

A kind of three-dimensional waxing printer, comprise frame, the upper strata of described frame is provided with between two relatively and forms directions X shifting axle and the Y-direction shifting axle of rectangular frame, on described directions X shifting axle and Y-direction shifting axle, be respectively arranged with slide block, between two described directions X shifting axles 2, by described slide block, Y-direction guide rail is installed, between two described Y-direction shifting axles, by described slide block, directions X guide rail is installed, described Y-direction guide rail and the place of overlapping of directions X guide rail are provided with the printer head of movement on Y-direction guide rail or directions X guide rail along directions X shifting axle or Y-direction shifting axle respectively, described printer head is mounted on the storage tank of described frame lower floor by conveying pipeline, described storage tank connects peristaltic pump, two relative Z directions in position are installed between the upper and lower of described frame and move leading screw, described Z direction moves leading screw and is moved and controlled motor driving and form moving sets with workbench by Z direction.

A kind of using method of three-dimensional waxing printer comprises the steps:

(1) assemble printer;

(2) wax, alcohol and cyclohexane being put into by a certain percentage to storage tank mix and blend is the mixed solution of wax the thawing completely of guaranteeing wax;

(3) open printer switch and the rotating speed of peristaltic pump is set, guaranteeing that the conveying capacity of described peristaltic pump and the extrusion capacity of described printer head equate;

(4) adjust the height and position of workbench;

(5) adjust the initial position of printer head according to the internal processes of printer and start to print, making the plane coordinates that cuts figure in aspect that described printer head shows according to computer move also printing curve along directions X guide rail and Y-direction guide rail;

(6) complete after the printing of an aspect, stop the operation of described peristaltic pump by the internal processes of printer, start Z direction and move control motor, described workbench is moved under the drive of leading screw, decline a bed thickness in Z direction, again start described peristaltic pump, make described printer head continue to print along the figure coordinate on new figure layer, until three dimensional model printing completes.

The invention has the beneficial effects as follows:

(1) due to wax used through volatility greatly and there is a certain proportion of cyclohexane and alcohol and melt and be treated as liquid state, than the wax of the molten state of current waxing printer, its viscosity reduces greatly, thereby peristaltic pump easy to use carries out the transmission of wax, with current three-dimensional printer adopt screw rod transmission wax require screw rod precision high and need to the special design of anti-backflow compared with, not only reduce manufacturing cost and the difficulty of printer, and can ensure that liaison constantly supplies raw materials.

(2) because the rotating speed of described peristaltic pump can accurately be controlled, and the conveying capacity of liquid wax can be determined by the rotating speed that regulates described peristaltic pump, therefore the conveying capacity of liquid wax accurately can be controlled to 0.001ml/r, in addition, described peristaltic pump can also provide for printer head the expulsion pressure of its nozzle place need, compared with the waxing printer that transmits wax with current employing screw rod, the transmission meeting of wax is more even, thereby obtain better 3 D-printing effect, and improve the machining accuracy of printed product.

(3) due to the cause of above-mentioned (1), (2), adopt three-dimensional waxing printer of the present invention and Method of printing to print threedimensional model, than traditional three-dimensional printer, not only reduce process time, and reduced processing cost; And the employing of simple structure of the present invention and peristaltic pump, compare with air pressure deposition technique with the fusion sediment technology of mentioning in background technology, not only overcome its existing many defect, and further reduced processing cost, machining accuracy is also easier to control.

Brief description of the drawings

Fig. 1 is the schematic diagram of structure of the present invention;

Fig. 2 is the schematic diagram of structure of the present invention in another angle.

Mark in figure: 1--frame, 2--X direction shifting axle, 3--printer head, 4--Y direction shifting axle, 5--storage tank, 6--peristaltic pump, 7--Z direction moves control motor, 8--workbench, 9--conveying pipeline, 10--Z direction moves leading screw, 11--slide block, 12--Y traversing guide, 13--X traversing guide.

Detailed description of the invention

For the present invention is more easily understood, below in conjunction with embodiment, technical scheme of the present invention is described in detail.

Fig. 1, Fig. 2 have illustrated the structure of three-dimensional waxing printer the present invention from two angles respectively.

With reference to Fig. 1, Fig. 2, three-dimensional waxing printer of the present invention, comprise the frame 1 that is provided with the upper and lower, the upper strata of described frame 1 is provided with between two relatively and forms directions X shifting axle 2 and the Y-direction shifting axle 4 of rectangular frame, on described directions X shifting axle 2 and Y-direction shifting axle 4, slide block 11 is installed respectively, between directions X shifting axle 2 described in two, by described slide block 11, Y-direction guide rail 12 is installed, between Y-direction shifting axle 4 described in two, by described slide block 11, directions X guide rail 13 is installed, described Y-direction guide rail 12 and the place of overlapping of directions X guide rail 13 are provided with the printer head 3 of movement on Y-direction guide rail 12 or directions X guide rail 13 along directions X shifting axle 2 or Y-direction shifting axle 4 respectively, described printer head 3 is mounted on the storage tank 5 of described frame 1 lower floor by conveying pipeline 9, the peristaltic pump 6 that described storage tank 5 connects for wax transmission, a pair of Z direction is installed between the upper and lower of described frame 1 and moves leading screw 10, described Z direction move leading screw 10 by Z direction move control motor 7 drive and form moving sets with workbench 8, thereby drive described workbench 8 to move up and down.

The using method of the three-dimensional waxing of the present invention printer comprises the steps:

(1) assemble printer, ensure that it can normally work;

(2) will put into by a certain percentage described storage tank 5 abundant mix and blend as wax, alcohol and the cyclohexane of raw material, make it to become the mixed solution of wax, require guarantee the thawing completely of wax and do not have solid particle;

(3) open printer switch and set the rotating speed of described peristaltic pump 6, determine the translational speed of described printer head 3 by regulating the rotating speed of described peristaltic pump 6, to guarantee that the conveying capacity of described peristaltic pump 6 and the extrusion capacity of described printer head 3 equate, prevent the phenomenon of cutout and overflow;

(4) adjust the height and position of workbench 8;

(5) according to the internal processes of printer, adjust the initial position of printer head 3, then start to print, make described printer head 3 move also printing curve according to the plane coordinates of the aspect that the cuts figure showing in the computer being connected with printer along described directions X guide rail 13 and Y-direction guide rail 12, when the mixed solution of wax is from 3 ejections of described printer head, alcohol and cyclohexane wherein volatilize rapidly, thereby make only to stay on workbench one deck solid state wax;

(6) complete after the printing of an aspect, stop the operation of described peristaltic pump 6, start Z direction and move control motor 7, described workbench 8 is moved under the drive of leading screw 10, decline the height of a bed thickness in Z direction, restart described peristaltic pump 6, make described printer head 3 continue to print along the figure coordinate on new figure layer, until three dimensional model printing completes.

In 3 D-printing method of the present invention, in the time carrying out the printing of first aspect, because the mixed solution of liquid wax is after printer head 3 ejections, alcohol wherein and cyclohexane can vapor away rapidly, thereby make only to leave one deck solid state wax on workbench, complete the spray printing deposition of ground floor wax; After the spray printing of this coating of wax has deposited, a described bed thickness of 8 workbench declines, then carry out the spray printing deposition of second layer wax, now, the mixed solution flowing out from the nozzle of described printer head 3 will dissolve the part solid wax of last layer, and then along with the volatilization of cyclohexane and alcohol forms solid, thereby two-layer solid wax is bonded as one; Then, the 8 described workbench bed thickness that declines again, then carries out the spray printing deposition of the 3rd layer of wax; By that analogy, until complete the printing of whole bed thickness.

With reference to drawings and Examples, three-dimensional waxing printer of the present invention and using method thereof are schematically described above, this description does not have restricted.Those of ordinary skill in the art will be understood that, in actual applications, all may there is some and change in some details in printer of the present invention in the structure of each parts, shape, set-up mode and using method, and other staff also may make similar Design under its enlightenment.Special needs to be pointed out is, only otherwise depart from design aim of the present invention, within all apparent changes are all included in protection scope of the present invention.

Claims (2)

1. a three-dimensional waxing printer, comprise frame, it is characterized in that: the upper strata of described frame is provided with between two relatively and forms directions X shifting axle and the Y-direction shifting axle of rectangular frame, on described directions X shifting axle and Y-direction shifting axle, be respectively arranged with slide block, between two described directions X shifting axles 2, by described slide block, Y-direction guide rail is installed, between two described Y-direction shifting axles, by described slide block, directions X guide rail is installed, described Y-direction guide rail and the place of overlapping of directions X guide rail are provided with the printer head of movement on Y-direction guide rail or directions X guide rail along directions X shifting axle or Y-direction shifting axle respectively, described printer head is mounted on the storage tank of described frame lower floor by conveying pipeline, described storage tank connects peristaltic pump, two relative Z directions in position are installed between the upper and lower of described frame and move leading screw, described Z direction moves leading screw and is moved and controlled motor driving and form moving sets with workbench by Z direction.
2. a using method for three-dimensional waxing printer, is characterized in that, the method comprises the steps:
(1) assemble printer;
(2) wax, alcohol and cyclohexane being put into by a certain percentage to storage tank mix and blend is the mixed solution of wax the thawing completely of guaranteeing wax;
(3) open printer switch and the rotating speed of peristaltic pump is set, guaranteeing that the conveying capacity of described peristaltic pump and the extrusion capacity of described printer head equate;
(4) adjust the height and position of workbench;
(5) adjust the initial position of printer head according to the internal processes of printer and start to print, making the plane coordinates that cuts figure in aspect that described printer head shows according to computer move also printing curve along directions X guide rail and Y-direction guide rail;
(6) complete after the printing of an aspect, stop the operation of described peristaltic pump by the internal processes of printer, start Z direction and move control motor, described workbench is moved under the drive of leading screw, decline a bed thickness in Z direction, again start described peristaltic pump, make described printer head continue to print along the figure coordinate on new figure layer, until three dimensional model printing completes.
CN201410085179.5A 2014-03-10 2014-03-10 Three-dimensional waxing printer and using method thereof CN103847104A (en)

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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104385782A (en) * 2014-09-10 2015-03-04 合肥斯科尔智能科技有限公司 Miniature handmade model printer
CN104629161A (en) * 2015-03-04 2015-05-20 中国科学院福建物质结构研究所 Low-melting-point 3D printing material and preparation method thereof
CN105346079A (en) * 2014-08-22 2016-02-24 深圳市宏山科园科技有限公司 3D waxwork printer
CN105599308A (en) * 2016-03-24 2016-05-25 河北大艾智能科技股份有限公司 Control method for material-extruding stepping motor in 3D (Three-Dimensional) printer head
CN108969119A (en) * 2018-09-07 2018-12-11 郑州大学第附属医院 A kind of fixed device of shaping and beauty Maxillary region

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Publication number Priority date Publication date Assignee Title
US20020111707A1 (en) * 2000-12-20 2002-08-15 Zhimin Li Droplet deposition method for rapid formation of 3-D objects from non-cross-linking reactive polymers
WO2008103450A2 (en) * 2007-02-22 2008-08-28 Z Corporation Three dimensional printing material system and method using plasticizer-assisted sintering
CN103213281A (en) * 2013-04-09 2013-07-24 重庆绿色智能技术研究院 Magnetorheological-material-based 3D (Three-Dimensional) printing type rapid prototyping device and method
CN203418763U (en) * 2013-07-31 2014-02-05 磐纹科技(上海)有限公司 High-speed 3D printer adopting fused deposition modeling method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020111707A1 (en) * 2000-12-20 2002-08-15 Zhimin Li Droplet deposition method for rapid formation of 3-D objects from non-cross-linking reactive polymers
WO2008103450A2 (en) * 2007-02-22 2008-08-28 Z Corporation Three dimensional printing material system and method using plasticizer-assisted sintering
CN103213281A (en) * 2013-04-09 2013-07-24 重庆绿色智能技术研究院 Magnetorheological-material-based 3D (Three-Dimensional) printing type rapid prototyping device and method
CN203418763U (en) * 2013-07-31 2014-02-05 磐纹科技(上海)有限公司 High-speed 3D printer adopting fused deposition modeling method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105346079A (en) * 2014-08-22 2016-02-24 深圳市宏山科园科技有限公司 3D waxwork printer
CN104385782A (en) * 2014-09-10 2015-03-04 合肥斯科尔智能科技有限公司 Miniature handmade model printer
CN104629161A (en) * 2015-03-04 2015-05-20 中国科学院福建物质结构研究所 Low-melting-point 3D printing material and preparation method thereof
CN105599308A (en) * 2016-03-24 2016-05-25 河北大艾智能科技股份有限公司 Control method for material-extruding stepping motor in 3D (Three-Dimensional) printer head
CN105599308B (en) * 2016-03-24 2017-10-27 河北大艾智能科技股份有限公司 The control method of material extrusion stepper motor in 3D printer head
CN108969119A (en) * 2018-09-07 2018-12-11 郑州大学第附属医院 A kind of fixed device of shaping and beauty Maxillary region

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Application publication date: 20140611