CN104369379A - Three-dimensional printer - Google Patents
Three-dimensional printer Download PDFInfo
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- CN104369379A CN104369379A CN201410638550.6A CN201410638550A CN104369379A CN 104369379 A CN104369379 A CN 104369379A CN 201410638550 A CN201410638550 A CN 201410638550A CN 104369379 A CN104369379 A CN 104369379A
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Abstract
The invention relates to the technical field of printing equipment and in particular relates to a three-dimensional printer. The three-dimensional printer comprises a rack, a printing head assembly and a driving mechanism, wherein the printing head assembly is movably mounted on the rack; the driving mechanism comprises a first motor, a second motor, a first driving belt and a second driving belt; the first motor and the second motor are both fixed on the rack; the first motor is connected with the printing head assembly by use of the first driving belt; the second motor is connected with the printing head assembly by use of the second driving belt. The three-dimensional printer is capable of controlling the printing head assembly to perform vector motion within a plane and then increasing the printing accuracy and the printing speed; besides, the two driving motors are fixedly mounted to avoid interference due to vibration; meanwhile, the three-dimensional printer is capable of breaking through the working face size bottleneck of numerous traditional printers, and capable of creating bigger breadth while guaranteeing the accuracy.
Description
Technical field
The present invention relates to printing device technical field, particularly relate to a kind of three-dimensional printer.
Background technology
At present, (English abbreviation is FDM to current hot melt accumulation type, English full name is FusedDeposition Manufacture) three-dimensional printer development and rapidly, produce much multi-form printer, but in cardinal principle printer, XY axial plane motor pattern can be summarized as following two types: A type and Type B.
As shown in Figure 1, A type adopts traditional " gantry " prototype structure.The principle of its XY axial plane movement is: the second motor 32 is connected with printhead assembly 2 by X-axis synchronous belt 8, and printhead assembly 2 is driven along X-axis by second motor 32 on gantry beam top; Correspondingly, the first motor 31 is connected with printing pallet 5 by Y-axis synchronous belt 7, prints pallet 5 and is driven along Y-axis by the first motor 31 of gantry upright post 6 side.
The major defect of A type structure is exactly: along with printer model generation gradually and increase, the weight that print tray checks and regulates body also becomes large gradually, causes its Y-axis mobile unit momentum to become large thereupon, thus increases the load of Y-axis driver element.Thus its result is just reduction of the print quality of Y direction; In addition, print pallet and together move up and down along Z-direction with Y-axis driver module, the interference of Z axis the moving stability can be subject to, make print quality be subject to the additivity impact of Y-axis and Z axis kinematic error and reduce like this.
As shown in Figure 2, Type B structure is another kind of typical structure.Its operation principle is: printhead assembly 5 is driven along X-axis by the second motor 32 of its side, and printhead assembly 5 and driver element thereof form the assembly module of a Y-axis, are driven along Y-axis by the first motor 31.
The same with A type structure, due to printhead assembly and X-axis be always shaped as to move integrally element quality excessive, cause its momentum excessive, increase the load of Y-axis drive motors, thus also reduce print quality and speed.But, because the printing pallet of Type B structure is relatively independent in the movement of Z-direction, do not disturb by any parts of XY axle, be better than A type structure on the one hand at this.
Meanwhile, the common drawback of above-mentioned A type and Type B, except mobile unit quality is large, also has:
(1) quality driven due to X-axis and y-axis motor is unequal, causes the diaxon precision in XY geometrical plane inconsistent.Such as print a right cylinder model, these two kinds of structures are due to unbalanced at the tractive force of XY diaxon, and its Output rusults is an approximate cylindrical ellipsoid.
(2) due to X-axis or Y-axis mobile unit design complexity, if will print area be increased, the quality of its a certain unit will be made to become multiple to increase, cause the design of integrated model more complicated, be unsuitable for the FDM printer developing into large-scale stamp with the size.The Output Size of the printer of the above-mentioned two kinds of structures of current employing in X-axis and Y direction all within 30 centimeters.
(3) because drive motors moves with mobile unit, motor positive and negative revolution time produce vibrations can disturb operating accuracy.In addition because motor cable needs constantly repeatedly to be bent with motor movement, metal fatigue can cause motor cable to fracture.
Therefore, for above deficiency, need one can control printhead assembly and planar carry out vector motion, improve printing precision and print speed, reduce the three-dimensional printer of print load and vibrations interference.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention is that in the existing printer of solution, print load is large, and printing precision and print speed are not high, and the problem that in print procedure, between each parts, interference effect is serious.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of three-dimensional printer, comprising:
Frame;
Printhead assembly, described printhead assembly is arranged in frame movably;
Driving mechanism, described driving mechanism comprises the first motor, the second motor, the first driving-belt and the second driving-belt; Described first motor and the second motor are all fixed in frame; Described first motor is connected with printhead assembly by the first driving-belt; Described second motor is connected with printhead assembly by the second driving-belt.
Wherein, the both sides of described frame are respectively equipped with Y-axis guide rail, and slidably connect X-axis guide rail between two Y-axis guide rails; Described printhead assembly is connected with X-axis slide.
Wherein, described first driving-belt is arranged by the first drive, the rotating shaft of the first motor, the second drive, the 3rd drive and the 4th drive tensioning, and the two ends of the first driving-belt are all connected to described printhead assembly; Described second driving-belt is arranged by the 5th drive, the rotating shaft of the second motor, the 6th drive, the 7th drive and the 8th drive tensioning, and the two ends of described second driving-belt are all connected to described printhead assembly.
Wherein, described first drive, the 5th drive lay respectively at one end of described X-axis guide rail; Described 4th drive, the 8th drive lay respectively at the other end of described X-axis guide rail; Described second drive, the 6th drive lay respectively at a corner of described frame; Described 3rd drive, the 7th drive lay respectively at another corner of described frame.
Wherein, described first drive, the second drive, the 5th drive and the 6th drive are respectively along the axially-aligned of the Y-axis guide rail corresponding with the first motor.
Wherein, described 3rd drive, the 4th drive, the 7th drive and the 8th drive are respectively along the axially-aligned with the corresponding Y-axis guide rail of the second motor.
Wherein, described first driving-belt is positioned at the top of the second driving-belt.
Wherein, also comprise and print pallet and elevating mechanism, described printing pallet is positioned at the below of printhead assembly by elevating mechanism.
Wherein, described frame is cube frame.
Wherein, described first motor, the second motor are individually fixed in the same side of cube frame.
(3) beneficial effect
Technique scheme of the present invention has following beneficial effect: three-dimensional printer of the present invention can realize controlling printhead assembly and planar carry out vector motion, thus effectively improves printing precision and print speed; And two drive motors all adopt fixed installation pattern, the vibrations produced when the positive and negative revolution of motor can not be superimposed in mobile unit, avoid the interference effect because vibrations produce; Meanwhile, this structure of the present invention can also surmount the bottleneck of existing many conventional printer working face sizes, under the prerequisite ensureing precision, is beneficial to the printer createing more large format.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing A type printer;
Fig. 2 is the structural representation of existing Type B printer;
Fig. 3 is the structural representation of embodiment of the present invention three-dimensional printer;
Fig. 4 is the stereogram of embodiment of the present invention three-dimensional printer;
Fig. 5 is the top view of embodiment of the present invention three-dimensional printer.
Wherein, 1: frame; 2: printhead assembly; 3: driving mechanism; 5: print pallet; 6: gantry upright post; 7:Y axle synchronous belt; 8:X axle synchronous belt; 11:Y axis rail; 12:X axis rail; 31: the first motors; 32: the second motors; 33: the first driving-belts; 34: the second driving-belts; 41: the first drives; 42: the second drives; 43: the three drives; 44: the four drives; 45: the five drives; 46: the six drives; 47: the seven drives; 48: the eight drives.
Detailed description of the invention
Below in conjunction with drawings and Examples, embodiments of the present invention are described in further detail.Following examples for illustration of the present invention, but can not be used for limiting the scope of the invention.
In describing the invention, except as otherwise noted, the implication of " multiple " is two or more; Term " on ", D score, "left", "right", " interior ", " outward ", " front end ", " rear end ", " head ", the orientation of the instruction such as " afterbody " or position relationship be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second ", " the 3rd " etc. only for describing object, and can not be interpreted as instruction or hint relative importance.
In addition, in describing the invention, also it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
As in Figure 3-5, a kind of three-dimensional printer that the present embodiment provides, comprises frame 1, printhead assembly 2 and driving mechanism 3; Printhead assembly 2 is arranged in frame 1 movably, wherein the move mode of printhead assembly 2 does not limit to certain ad hoc structure, such as: move (that is, the geometrical plane at X-axis and Y-axis place) at printing plane vector by the mode such as guide rail, sliding sleeve; And driving mechanism 3 comprises the first motor 31, second motor 32, first driving-belt 33 and the second driving-belt 34; Wherein, the first motor 31 and the second motor 32 are all fixed in frame 1, and two motors adopt fixed installation pattern, and the vibrations produced when its rotating can not be superimposed upon in mobile unit, avoid the interference effect because vibrations produce.Meanwhile, the first motor 31 is connected with printhead assembly 2 by the first driving-belt 33; Accordingly, the second motor 32 is connected with printhead assembly 2 by the second driving-belt 34, thus reaches by the phase difference controlled between two motors the object that control printhead assembly 2 planar carries out vector motion.
What deserves to be explained is, the principle of the present embodiment is that bi-motor passes through " stepping difference " pattern to control printhead assembly 2 at printing planar movement.Bi-motor all adopts fixed, and drives conveyer belt by the rotating shaft of respective termination, and then pulls the vector motion of printhead assembly 2 in X-axis and Y-axis.And can have multiple, as long as above-mentioned acting on can be met as the position relationship of the first motor 31, second motor 32, first driving-belt 33 and the second driving-belt 34 and type of attachment.Be described with a kind of preferred embodiment wherein below:
The both sides of frame 1 are respectively equipped with Y-axis guide rail 11, first motor 31 and the second motor 32 corresponding one end being positioned at Y-axis guide rail 11 respectively; And X-axis guide rail 12 is slidably connected between two Y-axis guide rails 11.Concrete, X-axis guide rail 12 is vertical with Y-axis guide rail 11 to be arranged, and X-axis guide rail 12 is connected with Y-axis guide rail 11 by sliding sleeve, certainly, also can be provided with the chute corresponding with Y-axis guide rail 11 at the two ends of X-axis guide rail 12, can move on X-axis guide rail 12 as long as meet X-axis guide rail 12.Meanwhile, printhead assembly 2 and X-axis guide rail 12 are similarly and are slidably connected, and printhead assembly 2 can sliding axially along X-axis guide rail 12, control printhead assembly 2 printing plane vector move by the first motor 31 and the second motor 32.
Further, first driving-belt 33 is arranged by the rotating shaft of the first drive 41, first motor 31, the second drive 42, the 3rd drive 43 and the 4th drive 44 tensioning, and the two ends of the first driving-belt 33 are all connected to printhead assembly 2, are connected to form closed loop configuration with printhead assembly 2.Correspondingly, second driving-belt 34 and the first driving-belt 33 take the mode of interlacing to arrange (both can't interfere mutually), second driving-belt 34 is arranged by the rotating shaft of the 5th drive 45, second motor 32, the 6th drive 46, the 7th drive 47 and the 8th drive 48 tensioning, and the two ends of the second driving-belt 34 are all connected to printhead assembly 2, are connected to form closed loop configuration with printhead assembly 2.Under guarantee printhead assembly 2 can planar do the prerequisite of vector motion, the particular location of each drive can adjust according to actual needs flexibly, does not limit to certain ad-hoc location.
Preferably, the first drive 41, the 5th drive 45 lay respectively at one end of X-axis guide rail 12, and the 4th drive 44, the 8th drive 48 lay respectively at the other end of X-axis guide rail 12; Second drive 42, the 6th drive 46 lay respectively at a corner of frame 1; 3rd drive 43, the 7th drive 47 lay respectively at another corner of frame 1.
And the first drive 41, second drive 42, the 5th drive 45 and the 6th drive 46 are respectively along the axially-aligned of the Y-axis guide rail 11 corresponding with the first motor 31.3rd drive 43, the 4th drive 44, the 7th drive 47 and the 8th drive 48 are respectively along the axially-aligned with the corresponding Y-axis guide rail 11 of the second motor 32.
The present embodiment operationally, suppose that the displacement of the first driving-belt 33 is △ A, the displacement of the second driving-belt 34 is △ B, the movement locus of combining printing head assembly 2 and the correlation theory of phase difference, thus can obtain: printhead assembly 2 is at the mobile vector △ X=1/2 (△ A+ △ B) of X-direction (axis of X-axis guide rail 12); In like manner, printhead assembly 2 is at the mobile vector △ Y=1/2 (△ A-△ B) of Y direction (axis of Y-axis guide rail 11).
Interference effect between each driving-belt, the first driving-belt 33 and the second driving-belt 34 adopts in vertical direction, lower distribution.Such as, described first driving-belt 33 is positioned at the top of the second driving-belt 34; Certainly, to be positioned at the top of the first driving-belt 33 also passable for the second driving-belt 34.
In the present embodiment, three-dimensional printer also comprises printing pallet 5 and elevating mechanism, prints pallet 5 is positioned at printhead assembly 2 below by elevating mechanism.Independent setting taked by this printing pallet 5, in the below lifting moving of printhead assembly 2, thus can not increase print load.Form as elevating mechanism can be multiple, such as, can set up another motor and riser guide drives print tray dish 5.
Preferably, frame 1 is cube frame, and the first motor 31, second motor 32 is individually fixed in the same side of cube frame, such as, first motor 31 is positioned at a corner at frame 1 top, and the second motor 32 is positioned at another corner at frame 1 top.
In the MPP standard three-dimensional printer series that this three-dimensional printer can be applicable to be developed by the applicant and large format MEGA three-dimensional printer series.Adopt the three-dimensional printer of this technology can solve the contradictory problems of FDM technology medium velocity, precision and volume restriction.Simultaneously owing to driving the motor of XY axle there is no displacement at work, significantly reduce noise, can use in general working space.Adopt this structure, in the MEGA series of the applicant's exploitation, stamp with the size has been greater than 50 centimeters, even can be larger.And the theoretical precision of overall Machine Design is 0.01 millimeter.Through many experiments actual measurement, the real work precision of this structure respectively to all within 0.1 millimeter, super other structure of the same type far away.
In sum, three-dimensional printer of the present invention can realize controlling printhead assembly and planar carry out vector motion, thus effectively improves printing precision and print speed; And two drive motors all adopt fixed installation pattern, the vibrations produced when the positive and negative revolution of motor can not be superimposed in mobile unit, avoid the interference effect because vibrations produce; Meanwhile, this structure of the present invention can also surmount the bottleneck of existing many conventional printer working face sizes, under the prerequisite ensureing precision, is beneficial to the printer createing more large format.
Embodiments of the invention provide in order to example with for the purpose of describing, and are not exhaustively or limit the invention to disclosed form.Many modifications and variations are apparent for the ordinary skill in the art.Selecting and describing embodiment is in order to principle of the present invention and practical application are better described, and enables those of ordinary skill in the art understand the present invention thus design the various embodiments with various amendment being suitable for special-purpose.
Claims (10)
1. a three-dimensional printer, is characterized in that, comprising:
Frame (1);
Printhead assembly (2), described printhead assembly (2) is arranged in frame (1) movably;
Driving mechanism (3), described driving mechanism (3) comprises the first motor (31), the second motor (32), the first driving-belt (33) and the second driving-belt (34); Described first motor (31) and the second motor (32) are all fixed in frame (1); Described first motor (31) is connected with printhead assembly (2) by the first driving-belt (33); Described second motor (32) is connected with printhead assembly (2) by the second driving-belt (34).
2. three-dimensional printer according to claim 1, it is characterized in that, the both sides of described frame (1) are respectively equipped with Y-axis guide rail (11), and slidably connect X-axis guide rail (12) between two Y-axis guide rails (11); Described printhead assembly (2) and X-axis guide rail (12) are slidably connected.
3. three-dimensional printer according to claim 2, it is characterized in that, described first driving-belt (33) is arranged by the rotating shaft of the first drive (41), the first motor (31), the second drive (42), the 3rd drive (43) and the 4th drive (44) tensioning, and the two ends of the first driving-belt (33) are all connected to described printhead assembly (2); Described second driving-belt (34) is arranged by the rotating shaft of the 5th drive (45), the second motor (32), the 6th drive (46), the 7th drive (47) and the 8th drive (48) tensioning, and the two ends of described second driving-belt (34) are all connected to described printhead assembly (2).
4. three-dimensional printer according to claim 3, is characterized in that, described first drive (41), the 5th drive (45) lay respectively at one end of described X-axis guide rail (12); Described 4th drive (44), the 8th drive (48) lay respectively at the other end of described X-axis guide rail (12); Described second drive (42), the 6th drive (46) lay respectively at a corner of described frame (1); Described 3rd drive (43), the 7th drive (47) lay respectively at another corner of described frame (1).
5. three-dimensional printer according to claim 4, it is characterized in that, described first drive (41), the second drive (42), the 5th drive (45) and the 6th drive (46) are respectively along the axially-aligned of the Y-axis guide rail (11) corresponding with the first motor (31).
6. three-dimensional printer according to claim 4, it is characterized in that, described 3rd drive (43), the 4th drive (44), the 7th drive (47) and the 8th drive (48) are respectively along the axially-aligned with the corresponding Y-axis guide rail (11) of the second motor (32).
7. three-dimensional printer according to claim 4, is characterized in that, described first driving-belt (33) is positioned at the top of the second driving-belt (34).
8. the three-dimensional printer according to any one of claim 1-7, it is characterized in that, also comprise and print pallet (5) and elevating mechanism, described printing pallet (5) is positioned at the below of printhead assembly (2) by elevating mechanism.
9. the three-dimensional printer according to any one of claim 1-7, is characterized in that, described frame (1) is cube frame.
10. three-dimensional printer according to claim 9, is characterized in that, described first motor (31), the second motor (32) are individually fixed in the same side of cube frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410638550.6A CN104369379A (en) | 2014-11-06 | 2014-11-06 | Three-dimensional printer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410638550.6A CN104369379A (en) | 2014-11-06 | 2014-11-06 | Three-dimensional printer |
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| CN104369379A true CN104369379A (en) | 2015-02-25 |
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| CN201410638550.6A Pending CN104369379A (en) | 2014-11-06 | 2014-11-06 | Three-dimensional printer |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN106313541A (en) * | 2015-06-17 | 2017-01-11 | 成都金采科技有限公司 | 3D printer with purifying device |
| CN106945279A (en) * | 2017-05-15 | 2017-07-14 | 吉林大学 | High speed 3D printing parallel drive mechanism |
| CN107160684A (en) * | 2017-06-28 | 2017-09-15 | 姚胜南 | A kind of ultra-large type 3D printing system and its Method of printing |
| CN107263860A (en) * | 2017-08-17 | 2017-10-20 | 广东工业大学 | A kind of desktop level 3D printer |
| CN108237688A (en) * | 2018-01-09 | 2018-07-03 | 天津科技大学 | A kind of low-cost high-efficiency 3D printer |
| CN108381906A (en) * | 2018-03-22 | 2018-08-10 | 清华大学 | Lateral 3D printer |
| CN110799290A (en) * | 2017-05-03 | 2020-02-14 | 赞克特金属公司 | Additive manufacturing apparatus comprising a gantry device using a reflective element to direct a laser beam to a moveable scanner |
| CN113492396A (en) * | 2020-03-19 | 2021-10-12 | 深圳迎凯生物科技有限公司 | Gripping device |
| CN113601986A (en) * | 2021-08-12 | 2021-11-05 | 诸暨市卓码电子科技有限公司 | Can miniaturize flat printer |
| CN115647394A (en) * | 2022-12-12 | 2023-01-31 | 苏州倍丰智能科技有限公司 | Selective laser melting forming equipment capable of realizing continuous production |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106313541A (en) * | 2015-06-17 | 2017-01-11 | 成都金采科技有限公司 | 3D printer with purifying device |
| 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 |
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| CN110799290A (en) * | 2017-05-03 | 2020-02-14 | 赞克特金属公司 | Additive manufacturing apparatus comprising a gantry device using a reflective element to direct a laser beam to a moveable scanner |
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| CN107160684A (en) * | 2017-06-28 | 2017-09-15 | 姚胜南 | A kind of ultra-large type 3D printing system and its Method of printing |
| CN107263860A (en) * | 2017-08-17 | 2017-10-20 | 广东工业大学 | A kind of desktop level 3D printer |
| CN108237688A (en) * | 2018-01-09 | 2018-07-03 | 天津科技大学 | A kind of low-cost high-efficiency 3D printer |
| CN108381906A (en) * | 2018-03-22 | 2018-08-10 | 清华大学 | Lateral 3D printer |
| CN113492396A (en) * | 2020-03-19 | 2021-10-12 | 深圳迎凯生物科技有限公司 | Gripping device |
| CN113492396B (en) * | 2020-03-19 | 2022-09-06 | 深圳迎凯生物科技有限公司 | Gripping device |
| CN113601986A (en) * | 2021-08-12 | 2021-11-05 | 诸暨市卓码电子科技有限公司 | Can miniaturize flat printer |
| CN115647394A (en) * | 2022-12-12 | 2023-01-31 | 苏州倍丰智能科技有限公司 | Selective laser melting forming equipment capable of realizing continuous production |
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Application publication date: 20150225 |