CN204398336U - Printhead and three-dimensional printer - Google Patents
Printhead and three-dimensional printer Download PDFInfo
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- CN204398336U CN204398336U CN201520016660.9U CN201520016660U CN204398336U CN 204398336 U CN204398336 U CN 204398336U CN 201520016660 U CN201520016660 U CN 201520016660U CN 204398336 U CN204398336 U CN 204398336U
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- printhead
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Abstract
The utility model relates to a kind of printhead for three-dimensional printer, comprises mount pad, the first liquefier, the second liquefier and switch unit, and the lower end of the first liquefier is provided with the first printing nozzle, and the lower end of the second liquefier is provided with the second printing nozzle.Described first liquefier is fixedly connected with the first slide block, described second liquefier is fixedly connected with the second slide block, described first slide block and the relatively described mount pad of described second slide block all can move back and forth vertical; Switch unit, described switch unit comprises slide plate, the first spring and the second spring, and the relatively described mount pad of described slide plate can move back and forth in the horizontal direction.Made by the switching of switch unit the outlet being in print state printing nozzle lower than the outlet being in holding state printing nozzle, thus prevent the printing nozzle being in holding state from scratching to printing surface in print procedure, improve the print quality of three-dimensional body.In addition, the utility model also provides a kind of three-dimensional printer using above-mentioned printhead.
Description
Technical field
The utility model relates to a kind of extrusion device and uses the extrusion equipment of this extrusion device; Relate in particular to and a kind ofly there is the printhead of two printing nozzle and use the three-dimensional printer of this printhead.
Background technology
Three-dimensional printer, is a kind of mathematical model based on three-dimensional body, utilizes powdery metal or plastic or other material, constructed the equipment of three-dimensional body by the mode successively printed.
Publication No. be disclose a kind of large-scale three dimensional printer in the patent document of CN103878984A extrude ejecting device, i.e. printhead, comprise mount pad and the heated extruder structure that is arranged on mount pad and thread guide mechanism; Heated extruder structure is positioned at the below of thread guide mechanism, adds hot-extrudable unit form by identical left and right of structure, eachly adds hot-extrudable unit and includes printing nozzle, heating rod, radiator and seal wire cover.One of them adds hot-extrudable unit for printing three-dimensional body, and another adds hot-extrudable unit for printing supporting construction.The heating cavity and the heating rod that add hot-extrudable unit form a liquefier, in print procedure, shaping silk is carried to liquefier by thread guide mechanism, shaping silk is heated to molten condition in liquefier, in liquefier, a what is called " liquifier pump effect " is produced under the promotion of subsequent forming silk, namely shaping silk itself is equivalent to a piston, enter the moulding material of the shaping silk extrusion molten state in liquefier, make it to extrude and the loading surface being deposited on objective table solidify to form one deck three-dimensional body or supporting construction from printing nozzle by certain volumetric rate.To add hot-extrudable cellular construction identical due to left and right, two vertical distance between printing nozzle with objective table are identical, carry out in the process printed at a printing nozzle, another printing nozzle being in holding state easily scratches the printing surface of three-dimensional body or supporting construction, reduces the print quality of three-dimensional body.
Summary of the invention
Main purpose of the present utility model is to provide a kind of printhead with two printing nozzle, and the printing nozzle being intended to prevent from being in holding state scratches and arrives printing surface in print procedure, improves the print quality of three-dimensional body;
Another object of the present utility model is to provide a kind of three-dimensional printer using above-mentioned printhead.
In order to realize above-mentioned main purpose, the utility model provides a kind of printhead on three-dimensional printer, comprise mount pad, the first liquefier, the second liquefier and switch unit, the lower end of the first liquefier is provided with the first printing nozzle, and the lower end of the second liquefier is provided with the second printing nozzle; First liquefier is fixedly connected with the first slide block, the second liquefier is fixedly connected with the second slide block, the first slide block and the second slide block are mounted opposite seat and all can move back and forth vertical; Switch unit comprises slide plate, the first spring and the second spring, and slide plate is mounted opposite seat and can moves back and forth in the horizontal direction; Slide plate is formed with slideway, along the direction that slide plate moves back and forth, slideway comprise the first remaining portion, the second remaining portion and be positioned between the two and relatively both at vertical upper outside the 3rd remaining portion convexed into; The restoring force of the first spring forces the first slide block to press on slideway, and the restoring force of the second spring forces the second slide block to press on slideway; Slide plate is when moving back and forth the end on direction and being stressed, and the first slide block switches between the first remaining portion and the 3rd remaining portion, and the second slide block switches between the 3rd remaining portion and the second remaining portion.
From above scheme, in print procedure, one in the first slide block and the second slide block is made to be stranded on the 3rd remaining portion, and another is stranded on the first remaining portion or the second remaining portion, cause the outlet of the first printing nozzle and the second printing nozzle different from the vertical distance between objective table, closely spaced printing nozzle prints, the printing nozzle that spacing is large is in holding state, thus effectively prevent the printing nozzle being in holding state from scratching to printing surface in print procedure, improve the print quality of three-dimensional body; When needing to switch the duty of printing nozzle, on the direction that slide plate moves back and forth, by the extruding of slide plate end and three-dimensional printer miscellaneous part, complete the switching of printing nozzle duty.
Concrete scheme is, the first liquefier is fixedly connected with first shaping guide pipe, and the first slide block is the first outer shoulder be formed on first shaping guide pipe; Second liquefier is fixedly connected with second shaping guide pipe, the second slide block is the second outer shoulder be formed on second shaping guide pipe; Slide plate is formed and moves back and forth along it long through-hole arranged in direction, one end of first shaping guide pipe is through long through-hole and it exports and the import of the first liquefier aligns, the first through hole that the other end passes the first spring and is formed on mount pad; One end of second shaping guide pipe is through long through-hole and it exports and the import of the second liquefier aligns, the second through hole that the other end passes the second spring and is formed on mount pad; Slideway is positioned at an openend of long through-hole.
From above scheme, shaping silk guide pipe is the connector between slide block and liquefier, it is again the guider that shaping silk enters liquefied gas, reduce the length be positioned at without restriction molding silk section between material-feeding rolling wheels and liquefier, effectively prevent shaping silk from bending in course of conveying, affect the formation of liquifier pump effect, reduce the print quality of three-dimensional body.
Scheme is a supporting seat is formed through long through-hole and the first joint pin be fixedly connected with mount pad and the second joint pin more specifically, and supporting seat supports slide plate; One end of first shaping guide pipe is through the third through-hole be formed on supporting seat, and one end of second shaping guide pipe is through the fourth hole be formed on supporting seat; When the first joint pin is against the first end of long through-hole, the first outer shoulder presses on the first remaining portion, and the second outer shoulder presses on the 3rd remaining portion; When the second joint pin is against the second end of long through-hole, the first outer shoulder presses on the 3rd remaining portion, and the second outer shoulder presses on the second remaining portion.
From above scheme, by coordinating of joint pin and long through-hole end, form slide plate and move back and forth the spacing of direction movement along it, be conducive to the control to printing nozzle operation state and switching.
Scheme concrete is again the direction moved back and forth along slide plate, and the length that the length of slide plate exceeds supporting seat equals the moveable maximum length of slide plate relative support seat.
From above scheme, in the process that the miscellaneous part of three-dimensional printer acts on slide plate end, when on the end that miscellaneous part presses on supporting seat, meaning printing nozzle is finished the work the switching of state, can by arranging the switching that printing nozzle duty monitored by touch sensor on supporting seat two ends.
To be above-mentioned slideway be arranged symmetrically with about the plane of symmetry of the 3rd remaining portion for preferred scheme, and the direction that slide plate moves back and forth is the normal direction of this plane of symmetry.
From above scheme, because slideway is for being arranged symmetrically with, be convenient to the duty switching printing nozzle.
Another preferred scheme is that switch unit also comprises scraper plate; This scraper plate is adjustably fixedly connected with slide plate vertical distance; Scraper plate be positioned at be trapped in the first slide block on the 3rd remaining portion or the printing nozzle corresponding to the second slide block outlet immediately below.
From above scheme, by the spacing between adjustment scraper plate and slide plate, the upper surface making scraper plate is tangent with the outlet of the printing nozzle being in holding state, switch to the process of holding state at printing nozzle from print state, the moulding material residued in printing nozzle outlet can be removed, prevent the moulding material residued in printing nozzle in print procedure from dripping on three-dimensional body or supporting construction simultaneously, reduce the print quality of three-dimensional body.
Another preferred scheme is that switch unit also comprises the scraper plate be fixedly connected with slide plate; When in the first slide block and the second slide block is stranded on the 3rd remaining portion, on vertical, scraper plate is between the first printing nozzle and the outlet of the second printing nozzle; Scraper plate be positioned at be trapped in the first slide block on the 3rd remaining portion or the printing nozzle corresponding to the second slide block outlet immediately below.
From above scheme, prevent the moulding material residued in holding state printing nozzle from dripping in print procedure on three-dimensional body or supporting construction, reduce the print quality of three-dimensional body.
In order to realize another object above-mentioned, the utility model provides the first three-dimensional printer, and it comprises frame, printhead and the walking mechanism be installed in frame and control unit; Printhead is above-mentioned major programme, concrete scheme, more specifically scheme and the printhead again described in concrete scheme; Printhead is installed in walking mechanism by mount pad.
In order to realize another object above-mentioned, the utility model provides the second three-dimensional printer, and it comprises frame, printhead and the walking mechanism be installed in frame and control unit; Wherein, printhead printhead described in above-mentioned second preferred version; Printhead is installed in walking mechanism by mount pad.
Accompanying drawing explanation
Fig. 1 is the stereogram of the utility model three-dimensional printer first embodiment;
Fig. 2 is the structure chart of printhead and walking structure in the utility model three-dimensional printer first embodiment;
Fig. 3 is the structure chart that the utility model printhead first embodiment omits material-feeding rolling wheels and material-feeding rolling wheels motor;
Fig. 4 is the structure chart that in the utility model printhead first embodiment, switch unit omits spring;
Fig. 5 is the schematic diagram that in the utility model printhead first embodiment, the first printing nozzle is in print state;
Fig. 6 is the schematic diagram that in the utility model printhead first embodiment, the second printing nozzle is in print state;
Fig. 7 is after the utility model three-dimensional printer first embodiment omits the parts be in corresponding to holding state printing nozzle, is in the schematic diagram that parts corresponding to the printing nozzle under print state carry out printing three-dimensional body;
Fig. 8 is the schematic diagram that in the utility model printhead second embodiment, the second printing nozzle is in print state;
Fig. 9 is the schematic diagram that in the utility model printhead the 4th embodiment, the first printing nozzle is in print state;
Figure 10 is the schematic diagram that in the utility model printhead the 6th embodiment, the first printing nozzle is in print state;
Figure 11 is that in the utility model printhead the 6th embodiment, the first printing nozzle is switching to the first view in holding state process from print state;
Figure 12 is that in the utility model printhead the 6th embodiment, the first printing nozzle is switching to the second view in holding state process from print state;
Figure 13 is that in the utility model printhead the 6th embodiment, the first printing nozzle is switching to the third state schematic diagram in holding state process from print state.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Detailed description of the invention
The utility model mainly improves the print head structure of three-dimensional printer, scratch in print procedure to prevent the printing nozzle being in holding state and arrive printing surface, improve the print quality of three-dimensional body, only be described the structure of printhead in specific embodiment, the miscellaneous part of three-dimensional printer designs according to industry design specification.Following embodiment has the two-part three-dimensional body of black and white to print, and is described the utility model.
Printhead and three-dimensional printer first embodiment
See Fig. 1, the frame 10 of three-dimensional printer is provided with printhead 1, feeding device, flexible pipe 3, objective table 4, walking mechanism 5 and control unit; Feeding device is provided with two silk charging trays, first silk charging tray supplies white shaping silk by flexible pipe 3 to printhead 1, and second silk charging tray supplies the shaping silk of black by flexible pipe 3 to printhead 1; Printhead 1 is installed in walking mechanism 5, and the controlled unit controls ground of walking mechanism 5 drives printhead 1 to move in the X-Y plane of level, and control unit controls objective table 4 Z axis vertically simultaneously and moves.
See Fig. 2, walking mechanism 5 is made up of printhead support plate 51, guide rod 521, guide rod 522, drive motors 53, driving-belt 54 and transversal driving mechanism; Drive motors 53 drives printhead support plate 51 moving axially along guide rod in the X-Y plane of level by driving-belt 54; Transversal driving mechanism drive leader 521 and guide rod 522 in the X-Y plane of level along perpendicular to guide rod shaft to direction move; Printhead 1 is made up of the first print unit, the second print unit, switch unit and mount pad 12, and printhead 1 is installed on printhead support plate 51 by mount pad 12; First print unit is made up of material-feeding rolling wheels motor 111, a pair first material-feeding rolling wheels, the first liquefier, first shaping guide pipe and the first printing nozzles; Second print unit is made up of material-feeding rolling wheels motor 112, a pair second material-feeding rolling wheels, the second liquefier, second shaping guide pipe and the second printing nozzles.
See Fig. 3, switch unit is made up of slide plate 151, supporting seat 152, scraper plate 153, first spring 154, second spring 155 and scraper plate connector 156; Supporting seat 152 is fixedly connected with mount pad 12, and slide plate 151 reciprocatingly can be placed between supporting seat 152 and mount pad 12 along the upper surface of supporting seat 152; The middle part of first shaping guide pipe 131 is formed with the first outer shoulder 1311, the upper end of first shaping guide pipe 131 is through the first through hole 121 be formed on mount pad 12, and lower end is successively through the third through-hole on the long through-hole 1510 be formed on slide plate 151 and supporting seat 152; First spring 154 is placed on outside first shaping guide pipe 131, one end presses on the lower surface of mount pad 12, the other end presses on the upper surface of the first outer shoulder 1311, and its elastic restoring force forces the lower surface of the first outer shoulder 1311 to press on the upper surface of slide plate 151; First liquefier 132 is fixedly connected on the lower end of first shaping guide pipe 131, and the import of the outlet of first shaping guide pipe 131 and the first liquefier 132 aligns, and the first printing nozzle 133 is located at the lower end of the first liquefier 132; The middle part of second shaping guide pipe 141 is formed with the second outer shoulder 1411, the upper end of second shaping guide pipe 141 is through the second through hole 122 be formed on mount pad 12, and lower end is successively through long through-hole 1510 and the fourth hole that is formed on supporting seat 152; Second spring 155 is placed on outside second shaping guide pipe 141, one end presses on the lower surface of mount pad 12, the other end presses on the upper surface of the second outer shoulder 1411, and its elastic restoring force forces the lower surface of the second outer shoulder 1411 to press on the upper surface of slide plate 151; Second liquefier 142 is fixedly connected on the lower end of second shaping guide pipe 141, and the import of the outlet of second shaping guide pipe 141 and the second liquefier 142 aligns, and the second printing nozzle is located at the lower end of the second liquefier 142; Scraper plate 153 is fixedly connected with slide plate 151 by scraper plate connector 156, and vertical distance between scraper plate 153 and slide plate 151 is adjustable.
See Fig. 4, long through-hole 1510 is arranged, namely along the direction that slide plate 151 can move back and forth on supporting seat 152 along the length direction of slide plate 151, from left to right, the upper surface of slide plate 151 is formed with the first remaining portion 1511, second remaining portion 1512 and relatively the two the 3rd remaining portion 1513 all raised up, both first linkage section 1514 is all tangentially connected with the first remaining portion 1511 and the 3rd remaining portion 1513, both second linkage section 1515 is all tangentially connected with the 3rd remaining portion 1513 and the second remaining portion 1512, first remaining portion 1511, first linkage section 1514, 3rd remaining portion 1513, second linkage section 1515 and the second remaining portion 1512 are in turn connected into a smooth continuous curve surface, the slideway that this smooth continuous curve surface formation first outer shoulder 1311 and the second outer shoulder 1411 slide on the upper surface of slide plate 151, first remaining portion 1511 and the second remaining portion 1512 form corresponding delay place of outer shoulder in print procedure of the printing nozzle being in holding state, 3rd remaining portion 1513 forms delay place of the corresponding outer shoulder of the printing nozzle being in print state, supporting seat 152 being formed with the first joint pin 1521 for being fixedly connected with mount pad 12 and the second joint pin 1522, first joint pin 1521 and the second joint pin 1522 through long through-hole 1510 can move along the length direction of long through-hole 1510 relative to slide plate 151.Slideway is arranged symmetrically with about two planes of symmetry of the 3rd remaining portion 1513.
See Fig. 5, when the first joint pin 1521 is against the first end of long through-hole 1510, i.e. left end, the lower end of the first outer shoulder 1311 presses on the first remaining portion 1511, and the lower end of the second outer shoulder 1411 presses on the 3rd remaining portion 1513; Now, the outlet of the first printing nozzle 133 is lower than the outlet of the second printing nozzle 143.
See Fig. 6, when the second joint pin 1522 is against the second end of long through-hole 1510, i.e. right-hand member, the lower end of the first outer shoulder 1311 presses on the 3rd remaining portion 1513, and the lower end of the second outer shoulder 1411 presses on the second remaining portion 1512; Now, the outlet of the second printing nozzle 143 is lower than the outlet of the first printing nozzle 133.
See Fig. 7, feeding device 8 has one and is wound with first charging tray 81 of white shaping silk 01 and is wound with second charging tray of the shaping silk of black, first charging tray 81 is installed in the first rotating shaft 82 of a charging tray installing rack, and second charging tray is installed in the second rotating shaft.
See Fig. 1 to Fig. 7, the method using above-mentioned three-dimensional printer to carry out printing by lower black white three-dimensional body dimerous is as follows:
Before carrying out printing three-dimensional body, shaping for white silk 01 is pulled out from first charging tray 81, make the shaping silk 01 of white be straightened by flexible pipe 3, until shaping for white silk is supplied to the first material-feeding rolling wheels 1131 and 1132, under the driving of material-feeding rolling wheels motor 111, white shaping silk enters in the first liquefier 132 by first shaping guide pipe 131; In like manner, shaping for black silk is pulled out from second charging tray, make the shaping silk of black be straightened by flexible pipe 3, until shaping for black silk is supplied to the second material-feeding rolling wheels, under the driving of material-feeding rolling wheels motor 112, the shaping silk of black is entered in the second liquefier 142 by second shaping guide pipe 141.
After three-dimensional printer starts printing, printhead 1 is positioned to right-hand member initial position under the driving of walking mechanism 5, i.e. the second position location, the right-hand member of slide plate 151 presses on the right-hand member of walking mechanism 5, under the effect of extruding force, slide plate 151 is moved to the left the right-hand member of the second joint pin 1522 against long through-hole 1510, the outlet of the first printing nozzle 133 scraped by scraper plate 153 simultaneously, the moulding material that outlet remains is scraped totally, now, the outlet of the second printing nozzle 143 is lower than the outlet of the first printing nozzle 133, and scraper plate 153 is positioned at immediately below the first printing nozzle 133 outlet, the heater that control unit controls the second liquefier 142 starts to be heated to molten condition to the shaping silk of the black in its heating chamber, control walking mechanism 5 and printhead 1 is urged to printing start position, control objective table 4 simultaneously and rise to printing start position, control material-feeding rolling wheels motor 112 to start working, control walking mechanism 5 moves in X-Y plane and objective table 4 moves along Z axis, prints the black part of three-dimensional body layer by layer.
When the black part completing three-dimensional body is printed, the heater that control unit controls the first liquefier 132 is heated to molten condition to the shaping silk of the white in it, after completing the printing of black part, control unit controls the first print unit and quits work, printhead 1 is positioned to left end initial bit under the driving of walking mechanism 5, i.e. the first position location, the left end of slide plate 151 presses on the left end of walking mechanism 5, under the effect of extruding force, slide plate 151 moves right the left end to the first joint pin 1521 against long through-hole 1510, the outlet of the second printing nozzle 143 scraped by scraper plate 153 simultaneously, residual moulding material in outlet is scraped totally, now, the outlet of the first printing nozzle 133 is lower than the outlet of the second printing nozzle 143, and scraper plate 153 is positioned at immediately below the second printing nozzle 143 outlet, control unit controls the printing start position that printhead 1 is urged to white portion by walking mechanism 5, control material-feeding rolling wheels motor 111 to start working, control walking mechanism 5 moves in X-Y plane and objective table 4 moves along Z axis, prints the white portion of three-dimensional body layer by layer.
In above-mentioned print procedure, be in the outlet of the printing nozzle of print state lower than the outlet being in holding state printing nozzle, ensure that the printing nozzle being in holding state can not scratch the printing surface of three-dimensional body or supporting construction in print procedure, thus ensure the print quality of three-dimensional body, and scraper plate can carry out clean to printing jet expansion and prevent the moulding material residued in printing nozzle from dripping on three-dimensional body, affects the print quality of three-dimensional body.
While switching printing nozzle duty process, newly position printing is nose heave, improve printing precision, and Renewal process is simple.
Scraper plate is positioned at two ends, left and right initial position to the process that printing nozzle cleans, thus effectively prevents the moulding material scraped from dripping on three-dimensional body, improves the print quality of three-dimensional body.
Printhead and three-dimensional printer second embodiment
As the explanation to the utility model printhead and three-dimensional printer second embodiment, only the difference with above-mentioned printhead and three-dimensional printer first embodiment is described below.
See Fig. 8, the lower end of the first spring 654 presses on the upper surface of supporting seat 652, and upper end presses on the lower surface of the first outer shoulder 6311; The lower end of the second spring 655 presses on the upper surface of supporting seat 652, and upper end presses on the lower surface of the second outer shoulder 6411.
When the first outer shoulder 6311 presses on the first remaining portion 6511, when the second outer shoulder 6411 presses on the 3rd remaining portion 6513, the outlet of the first printing nozzle 633 is higher than the outlet of the second printing nozzle 643.
When the first outer shoulder 6311 presses on the 3rd remaining portion 6513, when the second outer shoulder 6411 presses on the second remaining portion 6512, the outlet of the first printing nozzle 633 is lower than the outlet of the second printing nozzle 643.
Printhead and three-dimensional printer the 3rd embodiment
As the explanation to the utility model printhead and three-dimensional printer the 3rd embodiment, only the difference with above-mentioned printhead and three-dimensional printer first embodiment is described below.
Scraper plate and scraper plate connector is eliminated in switch unit.
Printhead and three-dimensional printer the 4th embodiment
As the explanation to the utility model printhead and three-dimensional printer the 4th embodiment, only the difference with above-mentioned printhead and three-dimensional printer first embodiment is described below.
See Fig. 9, when the first joint pin 7521 is against the left end of long through-hole, the left side of slide plate 751 and the left side of supporting seat 752 maintain an equal level.When the second joint pin 7522 is against the right-hand member of long through-hole, the right side of slide plate 751 and the right side of supporting seat 752 maintain an equal level, namely, on the direction moved back and forth along slide plate 751, the length that the length of slide plate 751 exceeds supporting seat 752 equals the moveable maximum length of slide plate 751 relative support seat 752.
Printhead and three-dimensional printer the 5th embodiment
As the explanation to the utility model printhead and three-dimensional printer the 5th embodiment, only the difference with above-mentioned printhead and three-dimensional printer first embodiment is described below.
Vertical distance between scraper plate and slide plate is definite value, and when in the first outer shoulder and the second outer shoulder is stranded on the 3rd remaining portion, on vertical, scraper plate is between the first printing nozzle and the outlet of the second printing nozzle.
Printhead and three-dimensional printer the 6th embodiment
As the explanation to the utility model printhead and three-dimensional printer the 6th embodiment, only the difference with above-mentioned printhead and three-dimensional printer first embodiment is described below.
See Figure 10, the first outer shoulder 9311 be formed on first shaping guide pipe 931 is a cylindrical-shaped structure, the axis of this cylindrical-shaped structure and the axis normal of first shaping guide pipe 931, the the second outer shoulder 9411 be formed on second shaping guide pipe 941 is a cylindrical-shaped structure, the axis of this cylindrical-shaped structure and the axis normal of second shaping guide pipe 941, be formed in the slideway on slide plate 951 upper surface, first remaining portion 9511 and the second remaining portion 9512 are the convex structure become to concave, 3rd remaining portion 9513 is made up of the first delay portion 95131 and the second delay portion 95132, first delay portion 95131 and the second delay portion 95132 are the convex structure become to concave, relative first remaining portion 9511 of first linkage section 9514 and the first delay portion 95131 have an end raised up 95141, relative second remaining portion 9512 of second linkage section 9515 and the second delay portion 95132 have an end raised up 95151.
See Figure 10 to Figure 13, the process that the first printing nozzle 933 switches to holding state from print state is as follows:
See Figure 11, printing nozzle 933 is in the first state, i.e. print state, and now, the lower surface of the first outer shoulder 9311 is stranded in the lowest part of the first remaining portion 9511.
See Figure 12, the right-hand member of slide plate 951 and the right-hand member of three-dimensional printer walking mechanism extrude mutually, and slide plate 951 relative support seat 952 is moved to the left, by the effect of the first outer shoulder 9311 and the first linkage section 9514; Relative slide plate 951, first outer shoulder 9311 slides on end 95141 along the surface of the first linkage section 9514, now, first printing nozzle 933 is in the second state, vertically, the outlet of the first printing nozzle 933 is positioned on the upper surface of elastic sealing layer 9532, and elastic sealing layer 9532 is for being pasted on one deck layer of silica gel on the upper surface of the base plate 9531 of scraper plate 953.
See Figure 13, along with slide plate 951 relative support seat 952 continues to slide left, first outer shoulder 9311 slides the lowest part to the first delay portion 95131 along the first linkage section 9514, now, first printing nozzle 933 is in the third state, i.e. holding state, the outlet of the first printing nozzle 933 presses on the upper surface of elastic sealing layer 9532, seals the first printing nozzle 933.
Printhead and three-dimensional printer the 7th embodiment
As the explanation to the utility model printhead and three-dimensional printer the 7th embodiment, only the difference with above-mentioned printhead and three-dimensional printer the 6th embodiment is described below.
Wherein, the first outer shoulder and the second outer shoulder of cylindrical-shaped structure can rotate around own axes accordingly, along being rolling process in slip taxiing procedures, and the frictional force between both reductions.
Printhead in the various embodiments described above, three-dimensional printer and 3 D-printing method are also applicable to the 3 D-printing needing to print supporting construction and three-dimensional body, and need to print the 3 D-printing with hard portions and soft elastic part three-dimensional body, these print procedures are all similar with the process of above-mentioned printing black and white two parts three-dimensional body, do not repeat them here.
Central scope of the present utility model is by increasing switch unit on the printhead with two printing nozzle, realization is in the outlet of print state printing nozzle lower than the outlet being in holding state printing nozzle, thus prevent from being in holding state printing nozzle and to scratch printing surface at print procedure, improve the print quality of three-dimensional body; According to this design, on scraper plate, the material of elastic sealing layer also can be selected from other elastomeric materials, and the structure of switch unit also has multiple apparent change, and such as, slideway can be located at slide plate and move back and forth on the side of direction layout along it.
Claims (9)
1. printhead, for three-dimensional printer, comprise mount pad, the first liquefier and the second liquefier, the lower end of described first liquefier is provided with the first printing nozzle, and the lower end of described second liquefier is provided with the second printing nozzle;
It is characterized in that:
Described first liquefier is fixedly connected with the first slide block, described second liquefier is fixedly connected with the second slide block, described first slide block and the relatively described mount pad of described second slide block all can move back and forth vertical;
Switch unit, described switch unit comprises slide plate, the first spring and the second spring, and the relatively described mount pad of described slide plate can move back and forth in the horizontal direction;
Described slide plate is formed with slideway, along the direction that described slide plate moves back and forth, described slideway comprise the first remaining portion, the second remaining portion and be positioned between the two and relatively both at vertical upper outside the 3rd remaining portion convexed into;
The restoring force of described first spring forces described first slide block to press on described slideway, and the restoring force of described second spring forces described second slide block to press on described slideway;
Described slide plate is when moving back and forth the end on direction and being stressed, and described first slide block switches between described first remaining portion and described 3rd remaining portion, and described second slide block switches between described 3rd remaining portion and described second remaining portion.
2. printhead according to claim 1, is characterized in that:
Described first liquefier is fixedly connected with first shaping guide pipe, and described first slide block is the first outer shoulder be formed on described first shaping guide pipe;
Described second liquefier is fixedly connected with second shaping guide pipe, and described second slide block is the second outer shoulder be formed on described second shaping guide pipe;
Described slide plate is formed and moves back and forth along it long through-hole arranged in direction, one end of described first shaping guide pipe is through described long through-hole and it exports and the import of described first liquefier aligns, the first through hole that the other end passes described first spring and is formed on described mount pad;
One end of described second shaping guide pipe is through described long through-hole and it exports and the import of described second liquefier aligns, the second through hole that the other end passes described second spring and is formed on described mount pad;
Described slideway is positioned at an openend of described long through-hole.
3. printhead according to claim 2, is characterized in that:
One supporting seat is formed through described long through-hole and the first joint pin be fixedly connected with described mount pad and the second joint pin, described supporting seat supports described slide plate;
One end of described first shaping guide pipe is through the third through-hole be formed on described supporting seat, and one end of described second shaping guide pipe is through the fourth hole be formed on described supporting seat;
When described first joint pin is against the first end of described long through-hole, described first outer shoulder presses on described first remaining portion, and described second outer shoulder presses on described 3rd remaining portion;
When described second joint pin is against the second end of described long through-hole, described first outer shoulder presses on described 3rd remaining portion, and described second outer shoulder presses on described second remaining portion.
4. printhead according to claim 3, is characterized in that:
Along the direction that described slide plate moves back and forth, the length that the length of described slide plate exceeds described supporting seat equals the moveable maximum length of the relatively described supporting seat of described slide plate.
5. printhead according to any one of Claims 1-4, is characterized in that:
Described slideway is arranged symmetrically with about the plane of symmetry of described 3rd remaining portion, and the direction that described slide plate moves back and forth is the normal direction of the described plane of symmetry.
6. printhead according to any one of Claims 1-4, is characterized in that:
Described switch unit also comprises scraper plate;
Described scraper plate is adjustably fixedly connected with described slide plate vertical distance;
Described scraper plate be positioned at be trapped in described first slide block on described 3rd remaining portion or the printing nozzle corresponding to described second slide block outlet immediately below.
7. printhead according to any one of Claims 1-4, is characterized in that:
Described switch unit also comprises the scraper plate be fixedly connected with described slide plate;
When in described first slide block and described second slide block is stranded on described 3rd remaining portion, on vertical, described scraper plate is between described first printing nozzle and the outlet of described second printing nozzle;
Described scraper plate be positioned at be trapped in described first slide block on described 3rd remaining portion or the printing nozzle corresponding to described second slide block outlet immediately below.
8. three-dimensional printer, comprises frame, printhead and the walking mechanism be installed in described frame and control unit;
It is characterized in that:
Described printhead is printhead described in any one of Claims 1-4;
Described printhead is installed in described walking mechanism by described mount pad.
9. three-dimensional printer, comprises frame, printhead and the walking mechanism be installed in described frame and control unit;
It is characterized in that:
Described printhead is printhead described in claim 6;
Described printhead is installed in described walking mechanism by described mount pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520016660.9U CN204398336U (en) | 2015-01-09 | 2015-01-09 | Printhead and three-dimensional printer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520016660.9U CN204398336U (en) | 2015-01-09 | 2015-01-09 | Printhead and three-dimensional printer |
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|---|---|
| CN204398336U true CN204398336U (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520016660.9U Expired - Fee Related CN204398336U (en) | 2015-01-09 | 2015-01-09 | Printhead and three-dimensional printer |
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| CN (1) | CN204398336U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104589649A (en) * | 2015-01-09 | 2015-05-06 | 珠海天威飞马打印耗材有限公司 | Printing head, three-dimensional printer and three-dimensional printing method |
| CN111376477A (en) * | 2020-03-30 | 2020-07-07 | 常州大学 | Many printer head systems of beating of many materials liquid 3D printer |
-
2015
- 2015-01-09 CN CN201520016660.9U patent/CN204398336U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104589649A (en) * | 2015-01-09 | 2015-05-06 | 珠海天威飞马打印耗材有限公司 | Printing head, three-dimensional printer and three-dimensional printing method |
| CN111376477A (en) * | 2020-03-30 | 2020-07-07 | 常州大学 | Many printer head systems of beating of many materials liquid 3D printer |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20150617 Termination date: 20170109 |