CN203650986U - Double-channel convergence type colored printing head for stackable colored three-dimensional printer - Google Patents
Double-channel convergence type colored printing head for stackable colored three-dimensional printer Download PDFInfo
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- CN203650986U CN203650986U CN201320647554.1U CN201320647554U CN203650986U CN 203650986 U CN203650986 U CN 203650986U CN 201320647554 U CN201320647554 U CN 201320647554U CN 203650986 U CN203650986 U CN 203650986U
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- 229910001220 stainless steel Inorganic materials 0.000 description 2
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Abstract
The utility model discloses a double-channel convergence type colored printing head for a stackable colored three-dimensional printer. Two wire guide holes are symmetrically formed in a nozzle flange plate; an included angle of 45-60 degrees is formed between each wire guide hole and a plane at the upper end of the flange plate; the two wire guide holes are in fit to form a round hole in a staggered mode at vertex angle at the lower end of the flange plate; the two wire guide holes are connected to the inner diameter at the upper end of the nozzle to form a dual-channel structure; monochromatic plastic wires fed by two wire feeding pumps pass through an inner nozzle structure to automatically finish the color mixing process in the stackable colored three-dimensional printer; fuse wires of various colors do not have temperature difference fusion in the process of printing colored three-dimensional stereoscopic workpieces, colored wires are extruded, and high printing precision is realized. Therefore, the mechanical strength of the printed workpiece accords with mechanical strength indexes of materials, the maintenance and replacement are convenient, the resources are saved, the energy consumption and the cost are reduced, and the colored printing head is simple in structure, stable and reliable.
Description
Technical field
The utility model belongs to a kind of stack three-dimensional printer printhead technology, and specifically a kind of can realize the accurate stack color three dimension three-dimensional printing machine of printing two enter singly to go out color print head.
Background technology
In known technology, the print routine of stack 3 D Printer is exploitation on the basis of Hewlett-Packard's printing of inkjet printer program, in stack 3 D stereo print procedure, print routine default print material is liquid flowing, what only need to provide each printhead closes and feeds instruction, only prints at workpiece the instruction that just provides Print All head while finishing and close heating power supply.
Switch element in heating control system, temperature sensor unit, when unit heater fault-free, two heating systems complete the asynchronism(-nization) of heating, complete the quality difference of heating.Be reflected in and print the layering that can see on workpiece on straight flange to present one deck long, another layer short; One deck is wide, and another layer narrow.And interlayer melting is not firm, the mechanical strength of workpiece is inadequate.Will see shape and mass discrepancy between two workpiece that print if be arranged to when double end is printed respectively two identical workpiece of design.This is technology and qualitative defect that existing stack double end 3 D Printer exists.
The printhead (see figure 1) of existing stack 3 D Printer, the wire feed pump 1-e that brings silk mouthful 1-k into connects into a conduit 1-q, enter a conduit 1-q and connect nozzle 1-j by ring flange 1-i, heater 1-l and temperature sensor 1-t are set on ring flange 1-i.In existing stack 3 D Printer print procedure, fracture of wire is common fault, and someone thinks and cannot not be heated loosely because stainless steel enters a conduit, makes plastic wire soften unable entering due to nozzle 1-j heating chamber.Therefore, on the rectangle flange seat of fixing printing head, install cooling fan additional, because the defect cooling effect of frame for movement is not obvious, instead cause cold wind disturbance to reduce printing workpiece adhesive force on landing slab, strengthen in print procedure the workpiece ground risk that comes off, and made to strengthen printed material adhesive force and become a difficult problem for industry.
The stack 3 D Printer of known technology all uses the printhead (see figure 1) of MK8 structure type, is the monochrome printhead of singly entering singly to go out, when claiming double end 3 D Printer after the printhead that A, two MK8 structure types of B are installed.If add respectively after the plastic wire of different colours in A, B double end, become double-colored 3 D Printer.Existing double-colored exchange process is that two printheads are realized by switching wire feed run action order, due to print head structure and control system defect, when the double color printer that the printhead of existing stack 3 D Printer is assembled into is worked when a printhead " time-out ", the waste heat of its heater also can make the clout in nozzle flow out, generation is mixed look and is polluted printing workpiece, destroys print quality and waste clout phenomenon.To this, abroad someone designed break-off printhead wire inversion and keep to the side to wipe mouth device and program.And colour changing must fracture of wire defect still exist.Complexity and manufacturing cost and the use cost of machine are strengthened.
Summary of the invention
The purpose of this utility model is to provide a kind of the two of stack color three dimension three-dimensional printing machine that can realize accurate printing and enters singly to go out color print head, and the process of dual-color plastic silk melting colour mixture is arranged in nozzle and is completed.Can realize the colored workpiece of high accuracy print quality and 3 D stereo.
The technical scheme that the utility model provides: comprise wire feed pump, seal wire flexible pipe, ring flange, heating chamber, heater, temperature sensor and nozzle, it is characterized in that: on nozzle flange dish, be provided with two symmetrical thread eyes, on each and ring flange, transverse plane is 45～60 ° of angles, two thread eyes are staggered tangent synthetic circular hole at drift angle place, lower end, is connected to upper end of nozzle internal diameter and forms channel structure; Two wire feed pumps are set, and two wire feed pumps are arranged on the centre position of the rectangle ring flange on walking bracket, and the wire vent hole of each wire feed pump connects the thread eye upper end on nozzle flange dish by seal wire flexible pipe respectively; Nozzle flange disk center position arranges heating chamber, heater is set in heating chamber, at heating chamber top set temperature sensor, in the outside lower end of heating chamber, a nozzle is set, nozzle outside is truncated cone shape, upper end of nozzle internal diameter equals thread eye diameter, and roundlet platform center, bottom is provided with wire vent hole.
Both sides thread eye in above-mentioned nozzle flange dish is arranged to be 45～60 ° of angles with upper transverse plane, and thread eye outlet position adjacent edge is tangent, and tangent position equals thread eye diameter.
good effect of the present utility model: can realize the colour print effect of the color standard of truth and false of workpiece, be equivalent to 8 color-resolution in computer.Single heater centering mode of heating improves more than 85% thermal effect utilization rate, energy-saving efficiency improves 2 times, save the temperature-control circuit and the device that on mainboard, repeat setting, simplify software kit, eliminate each hardware single-piece technical parameter in each heater circuit loop and do not ensure that uniformity causes the defect of the print quality problem that the fuse temperature difference causes, eliminate assembling that in the printhead bull scheme of prior art, multiple nozzles bring and the drawback of leveling trouble and bull scratching destruction printing aspect.The utility model adopts and two enter singly to go out color print head and simplified mainboard heating control circuit, greatly saves device, reduces operation energy consumption, and reliable and stable, processing cost reduces.
Double-channel spray nozzle ensures that printed material toning and the colour changing of color print head complete under molten condition in nozzle, as long as print command does not stop, weaving silk and just can not interrupt.Realize constant temperature wire vent even, colour changing is fracture of wire not, realizes the adjustable requirement of color-separated degree and degree of mixing.Select when suitable on the workpiece being printed out, to see the geometrical pattern that color is clearly demarcated at color-separated degree, otherwise, select can on the workpiece being printed out, see when suitable the colored geometrical pattern of double-colored gradual change at color mixture degree, and surfacing and interlayer melting are closed firmly.Eliminated the defect that the fracture of wire colour changing in existing bull stack 3 D Printer and the clout in nozzle flow out, and look pollution printing workpiece, the defect of destruction print quality and waste clout are mixed in generation.
The seal wire flexible pipe one arranging in the utility model is the not vertical characteristic that adapts to seal wire path.The 2nd, realize from mechanical design structure the effect that material thermal insulation doubles, save outer heating/cooling device and don't can cause fracture of wire defect.
Twoly enter singly to go out color print head and be convenient to quality control in manufacturing process and the upgrade expanding of printer, and accident analysis, maintain and replace, economizes on resources, and reduces energy consumption, reduces costs, simple in structure, reliable and stable.Reduce and manufacture and maintenance cost, facilitate user to safeguard.
Twoly enter singly to go out color print head and can be used for new technology 3 D Printer, be also applicable to the technology upgrading of prior art 3 D Printer, improve and ensure print quality.
Brief description of the drawings
Fig. 1 is the conventional print head structure schematic diagram of existing three-dimensional printing machine.
Fig. 2 is that nozzle flange dish of the present utility model and nozzle arrangements master look schematic diagram.
Fig. 3 is that schematic diagram is looked on nozzle flange dish of the present utility model and the nozzle arrangements right side.
Fig. 4 is nozzle flange dish of the present utility model and nozzle arrangements elevational schematic view.
Fig. 5 is embodiment binary channels convergence type color print head structural representation.
Detailed description of the invention
embodiment concrete structure is:see Fig. 5, twoly enter singly to go out color print head two wire feed pump 1-e are set, two wire feed pump 1-e are bolted on rectangular bar shaped flange seat 5-1 above, and it is upper that rectangular bar shaped flange seat 5-1 is arranged on walking bracket 5-3, and walking bracket is connected on X-axis guide rail by fixing linear bearing 5-5; Nozzle flange dish 2-3 is connected to rectangular bar shaped flange seat 5-1 centre position by bolt 2-1, the wire vent hole 5-2 of place of two wire feed pump 1-e connects two thread eye upper end 2-6,2-7 on nozzle flange dish 2-3 by seal wire flexible pipe 5-4 respectively, and two thread eye upper ends are the setting of symmetric figure distribution (see figure 2); Both sides thread eye in nozzle flange dish is arranged to be 45～60 ° of angles with upper transverse plane, and the size that changes angle can be controlled color-separated degree and the degree of mixing of double-channel spray nozzle (see figure 2) spray silk.Thread eye outlet 2-6A, 2-7A position are tangential in upper end of nozzle 2-8, and space, tangent position bore equals thread eye diameter.Nozzle flange dish 2-3 center arranges heating chamber 2-4, and heater 2-5 is set in heating chamber 2-4, at heating chamber top set temperature sensor 2-2, in the outside lower end of heating chamber, a nozzle 2-9 is set, and outside is truncated cone shape; Frustum of a cone center arranges wire vent hole 2-10.The printed material toning and the colour changing that ensure color print head complete under molten condition in double-channel spray nozzle, as long as print command does not stop, weaving silk and just can not interrupt.Suitably lower the temperature to bolt 2-1 for the fan that can install additional in 5-6 position for a long time that adapts to large-size workpiece, prevent that heater waste heat is transmitted to wire feed pump.
See Fig. 1,5, after, dichromatism ABS plastic silk red, yellow when loading respectively in two monochromatic plastic wire wire feed pump 1-e charging holes, open printer power supply switch, the master control system program on printer mainboard starts self-check program, enters wait state after intact.Then, manually wait state is switched to heating init state, color print head heating-up temperature is arranged to 240 DEG C, start heating order.The resistance-type ceramic heating pipe heating of heater 2-5, when heating chamber 2-4 in the nozzle flange dish 2-3 of copper alloy material is reached 240 DEG C by rapid heating-up temperature, sub-control system enters thermostatic control state, state of a control time≤6 seconds, the double-channel spray nozzle that can ensure copper alloy material in the time of printing speed operating temperature 240 ± 1 DEG C of precision.Temperature sensor 2-2 is pressed on nozzle flange dish 2-3 by screw washer; Heater carries out internal heat type heating to thread eye intersection area, both sides, has effectively improved the utilization of heater heat energy, reduces and finishes the error in reading being configured to, and improves the control accuracy of heating control loop module.
See Fig. 5, the seal wire flexible pipe 5-4 that the monochromatic plastic wire that wire feed pump 1-e sends is worked out by stainless steel wire is directed to corresponding thread eye 2-6 in nozzle flange dish 2-3, in 2-7, arrive thread eye lower end 2-6A, when 2-7A, be subject to the fuse high temperature from heater 2-5, the monochromatic plastic wire that feeds arrival is melted in the compression stroke that double-channel spray nozzle 2-9 inner circle frustum forms, in the time of continuous wire feed state, two monochromatic plastic wires that enter thread eye arrange 2-8 to feed along 45～60 ° of angles mutually, its power of carrying passes to liquid plastic slurry and impels it to do spiral vortex type downwards along double-channel spray nozzle inwall to move, force dual-color plastic silk to be fused into colour mixture plastics slurry.The liquid plastic slurry of constant temperature keeps good mobility always, makes colour mixture ability and effect reach the technical requirement of color inkjet printer.Vortical force discharges the color silk of ejection by double-channel spray nozzle lower end aperture 2-10.Double-channel spray nozzle 2-9 nozzle inner walls is arranged to circular cone structure, also there will not be after cooling because plastics solidify and band-type brake phenomenon occurs gets to get off.
Two to enter singly to go out color print head be to adopt to adjust the angle that thread eye lower end 2-6A, 2-7A form and realize color-separated degree and degree of mixing requirement due to of the present utility model, the little color-separated degree of printing that improves of angle, angle is greatly contrary, in the time that ejection filament is irregular double-colored color conditions of streaking, uses and add mitre enhancing degree of mixing or reduce angle raising separating degree method and can eliminate.In the time that angle is applicable to, enter silk one side and melt out pressure and be greater than and suspend a side clout and melt out pressure, effectively blocking-up suspends a side clout and melts out, and when stopping known double end completely and printing, mixes look phenomenon.Angle and color-separated degree are inversely proportional to.The plastics material filament diameter size that need to use according to printing while selecting color-separated to spend is changed respective nozzle ring flange and is realized.Because two printed material toning and colour changings of entering singly to go out color print head are to complete under molten condition in nozzle, as long as print command does not stop, weaving silk and just can not interrupt.Select can on the workpiece being printed out, to see when suitable the geometrical pattern of the clearly demarcated or gradual change of color at color-separated degree, and even curface and interlayer melting are closed firmly.
Claims (2)
1. a binary channels convergence type color print head for stack color three dimension printer, comprise wire feed pump, seal wire flexible pipe, ring flange, heating chamber, heater, temperature sensor and nozzle, it is characterized in that: on nozzle flange dish, be provided with symmetrical two thread eyes, on each and ring flange, transverse plane is 45～60 ° of angles, two thread eyes are staggered tangent synthetic circular hole at drift angle place, lower end, is connected to upper end of nozzle internal diameter and forms channel structure; Two wire feed pumps are set, and two wire feed pumps are arranged on the centre position of the rectangle ring flange on walking bracket, and the wire vent hole of each wire feed pump connects the thread eye upper end on nozzle flange dish by seal wire flexible pipe respectively; Nozzle flange disk center position arranges heating chamber, heater is set in heating chamber, at heating chamber top set temperature sensor, in the outside lower end of heating chamber, a nozzle is set, nozzle outside is truncated cone shape, double-channel spray nozzle upper-end inner diameter equals thread eye diameter, and roundlet platform center, bottom is provided with wire vent hole.
2. binary channels convergence type color print head for stack color three dimension printer according to claim 1, it is characterized in that: the both sides thread eye in nozzle flange dish is arranged to be 45～60 ° of angles with upper transverse plane, thread eye outlet position adjacent edge is tangent, and tangent position equals thread eye diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320647554.1U CN203650986U (en) | 2013-10-21 | 2013-10-21 | Double-channel convergence type colored printing head for stackable colored three-dimensional printer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320647554.1U CN203650986U (en) | 2013-10-21 | 2013-10-21 | Double-channel convergence type colored printing head for stackable colored three-dimensional printer |
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| CN203650986U true CN203650986U (en) | 2014-06-18 |
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| CN201320647554.1U Expired - Lifetime CN203650986U (en) | 2013-10-21 | 2013-10-21 | Double-channel convergence type colored printing head for stackable colored three-dimensional printer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104552955A (en) * | 2015-01-23 | 2015-04-29 | 青岛尤尼科技有限公司 | Double-color 3D printer and color changing method thereof |
| CN104999669A (en) * | 2015-07-29 | 2015-10-28 | 珠海天威飞马打印耗材有限公司 | Three-dimensional printing spray head, three-dimensional printer and printing method |
| CN107530975A (en) * | 2015-02-06 | 2018-01-02 | 费尔南多·安德烈斯·比恩索瓦斯萨菲 | System and method for generating the image in 3 D-printing object |
| WO2018019315A1 (en) * | 2016-07-29 | 2018-02-01 | Tomas Bata University In Zlin | Customised footwear production method |
-
2013
- 2013-10-21 CN CN201320647554.1U patent/CN203650986U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104552955A (en) * | 2015-01-23 | 2015-04-29 | 青岛尤尼科技有限公司 | Double-color 3D printer and color changing method thereof |
| CN107530975A (en) * | 2015-02-06 | 2018-01-02 | 费尔南多·安德烈斯·比恩索瓦斯萨菲 | System and method for generating the image in 3 D-printing object |
| CN107530975B (en) * | 2015-02-06 | 2021-09-17 | 费尔南多·安德烈斯·比恩索瓦斯萨菲 | System and method for generating images in three-dimensional printed objects |
| CN104999669A (en) * | 2015-07-29 | 2015-10-28 | 珠海天威飞马打印耗材有限公司 | Three-dimensional printing spray head, three-dimensional printer and printing method |
| CN104999669B (en) * | 2015-07-29 | 2018-04-10 | 珠海天威飞马打印耗材有限公司 | 3 D-printing shower nozzle, three-dimensional printer and Method of printing |
| WO2018019315A1 (en) * | 2016-07-29 | 2018-02-01 | Tomas Bata University In Zlin | Customised footwear production method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |