CN204687360U - A kind of three-dimensional printer - Google Patents
A kind of three-dimensional printer Download PDFInfo
- Publication number
- CN204687360U CN204687360U CN201520127594.2U CN201520127594U CN204687360U CN 204687360 U CN204687360 U CN 204687360U CN 201520127594 U CN201520127594 U CN 201520127594U CN 204687360 U CN204687360 U CN 204687360U
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- Prior art keywords
- printhead
- chamber
- dimensional printer
- printing
- feed unit
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Abstract
The utility model provides a kind of three-dimensional printer, comprising: frame, printhead travel mechanism, feed unit and printhead; Wherein, described printhead, comprises feeding-passage, chamber, rotor mechanism, nozzle; One end of described feeding-passage is connected with described feed unit, and the other end is connected with described chamber, the 3 D-printing material in described feed unit is directed to the chamber of described printhead; One end of described chamber is connected with described feeding-passage, and the other end is connected with institute nozzle; Described rotor mechanism is placed in described chamber, and described rotor mechanism comprises driving gear and driven gear, partly fits with the inwall of described chamber in the neighboring of described driving gear and driven gear.The utility model by arranging the printhead of band rotor thus can realizing printing continuously by injecting printed material in printhead chamber, simultaneously because the tooth pitch of printhead rotor is that precision that is fixing thus that print can be guaranteed.
Description
Technical field
The utility model relates to three-dimensional printing technology field, in particular to a kind of three-dimensional printer.
Background technology
Three-dimensional printing technology has been widely used in each industrial circle, such as, in the application having prior art such as shaping of plastic product, food.
A kind of common molding mode of 3 D-printing machine equipment of the prior art is that the article shaped model pre-set is divided into multiple layer, the moulding material of being discharged by 3 D-printing equipment is stacked on print platform layer by layer according to described multiple layer, finally forms the shape of the article shaped pre-set.
The feed mode of 3 D-printing equipment of the prior art generally includes the following two kinds: when carrying out plastic material and printing, described plastic material is realized supply by the form of the wire rod of winding, plastic wire is fed in printing device and is melted as liquid state, then discharges via described moulding material deliverying unit.Moulding material is limited to and is suitable for being shaped in the plastics of wire rod by this printing type usually, not only limits the material of article shaped and adds cost.For the article shaped material of non-wire rod, usually article shaped material is discharged by means of plunger displacement pump in prior art, the similar of described plunger displacement pump is in common syringe, comprise syringe and plunger, accommodating described article shaped material in syringe, the moulding material in described syringe is discharged by the pressure provided by plunger; In this technical scheme due to syringe capacity be limited in printing after need again to change syringe, thus reduce the efficiency of printing.
Another aspect, printhead of the prior art discharges the control of precision for moulding material and the reliability of work also exists more problem, is difficult to adapt to high-precision continuous printing.
Summary of the invention
The utility model proposes based on above-mentioned defect of the prior art just, the technical problems to be solved in the utility model comprise following in one or more: precision, the reliability improving 3 D-printing equipment that the printed material improving 3 D-printing equipment is discharged or improve the ability that 3 D-printing equipment prints continuously for non-linearity material.
In order to solve the problem, according to an aspect of the present utility model, provide a kind of three-dimensional printer, described three-dimensional printer comprises: frame, printhead travel mechanism, feed unit and printhead; Wherein, described frame, for carrying the parts of described three-dimensional printer; Described printhead travel mechanism, drives the motion of described printhead; Described feed unit, is connected with described printhead, to described printhead supply 3 D-printing material; Described printhead, comprises feeding-passage, chamber, rotor mechanism, nozzle; One end of described feeding-passage is connected with described feed unit, and the other end is connected with described chamber, the 3 D-printing material in described feed unit is directed to the chamber of described printhead; One end of described chamber is connected with described feeding-passage, and the other end is connected with institute nozzle; Described rotor mechanism is placed in described chamber, and described rotor mechanism comprises driving gear and driven gear, partly fits with the inwall of described chamber in the neighboring of described driving gear and driven gear.
Preferably, described three-dimensional printer, is characterized in that, described frame comprises column, upper frame and underframe.
Preferably, described printhead travel mechanism comprises Linear Moving Module, connecting rod and printhead mounting platform; Described Linear Moving Module moves up and down on described column, comprises drive motors, transmission mechanism, slide block and guide rail, and described guide rail is arranged on the column of described frame, described drive motors by transmission mechanism band movable slider at slide on rails; One end of described connecting rod is connected with slide block by ball-joint, and the other end is connected with pumping unit mounting platform by ball-joint.
Preferably, described feed unit comprises head tank, and described feeding cylinder is arranged at above described printhead, the charging hole link above the lower end of feeding cylinder and described print head body, to described printhead inside supply 3 D-printing material.
Preferably, the periphery of described feeding cylinder is also provided with heating film and head tank temperature sensor, and described head tank temperature sensor is connected with described heating film by control unit.
Preferably, the middle part of described printhead mounting platform is provided with through hole, and described feed unit is connected with the chamber in described printhead through the through hole of described printhead mounting platform.
Preferably, the open upper end of described head tank.
Preferably, described three-dimensional printer is for printing chocolate or wax material.
Preferably, described three-dimensional printer is for printing degradation material.
Preferably, described 3 D-printing all comprises temperature control unit, and described temperature control unit comprises chamber temp control unit and nozzle temperature control unit.
The utility model completes print procedure by the printhead arranging band rotor, can realize printing continuously by injecting printed material in printhead chamber constantly for plunger displacement pump of the prior art, simultaneously because the tooth pitch of printhead rotor is fixing, thus the precision printed can be guaranteed.
Accompanying drawing explanation
Fig. 1 is the structure chart of a kind of 3 D-printing equipment in the utility model embodiment.
Fig. 2 is the print head structure figure in the utility model embodiment.
Fig. 3 is the print head structure profile in the utility model embodiment.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model embodiment is described in detail, it should be noted that this detailed description of the invention is only the citing to the utility model optimal technical scheme, the restriction to the utility model protection domain can not be interpreted as.
Present embodiment discloses a kind of chocolate 3D printer.Fig. 1 shows the general structure in the utility model embodiment.
The chocolate 3D printer of the utility model embodiment comprises: frame 1, printhead travel mechanism 2, feed unit 6, printhead 3 and print platform 4.
Described frame is for supporting other structure of described plastic grain 3D printer.Frame in the present embodiment comprises upper ledge, column and lower frame.As shown in Figure 1, described upper ledge is triangle, and preferably, described triangle is equilateral triangle, has three limits that length is equal, and each limit is formed by a linear bar, and three bars lay respectively on described three sides of a triangle.In described leg-of-mutton three bights, by connector, described three bars are coupled together.Described connector comprises interconnecting piece and outer connector.Described outer connector be formed at described leg-of-mutton outside, comprise bight and two arms, described two arms are connected with the end winding support of two bars adjacent in described triangle respectively, described bight is formed as fillet, the maintenance of the housing of 3D printer can be made to fix reliably the appearance of sharp corners can be avoided simultaneously to reduce the issuable injury of user by the connection of this outer connector.Described interconnecting piece is arranged at the corner positions in described triangle, described interconnecting piece comprises two arms and connecting portion, described two arms are connected with the end winding support of two bars adjacent in described triangle respectively, described connecting portion is formed as tabular, connect described two arms, between flat described connecting portion and described leg-of-mutton bight, be formed with predetermined gap.Described gap is for holding the column of described frame, and the column of described frame is fixedly connected with the connecting portion of described interconnecting piece.Described column and described upper ledge reliably couple together simultaneously and ensure that the smooth of whole frame moulding is conducive to packing and uses simultaneously by the soundness that can improve described frame further by the design of this interconnecting piece.
Described column preferably adopts vertical bar to be formed, and the quantity of described bar is three, correspondingly with three angles of institute upper ledge respectively arranges, and three described column upper ends are fixedly connected with its lower end with described upper ledge and are fixedly connected with described lower frame.
Described lower frame is formed in the bottom of described framework, and its structure is preferably identical with the structure of described upper ledge.Still more preferably, described lower frame comprises two triangular member of consistency from top to bottom, and the outer connector of two described triangular member is formed in one, and the interconnecting piece of two described triangular member is also formed in one.The lower mount structure of this pair of framework can improve the stability of described framework further, is conducive to installing corresponding 3D printer arrangement on described lower frame simultaneously.
Described printhead travel mechanism 2 comprises Linear Moving Module, connecting rod and printhead mounting platform.As shown in Figure 1, described Linear Moving Module for moving up and down on described three root posts.Described Linear Moving Module comprises drive motors, transmission mechanism, slide block and guide rail, the quantity of described guide rail preferably includes three, be separately positioned on three described columns, described drive motors is slided on slide rail by transmission mechanism band movable slider, thus orders about described slide block and move along the above-below direction of described column.One end of described connecting rod is connected with slide block by ball-joint, and the other end is connected with pumping unit mounting platform by ball-joint; In order to increase the stability of pumping unit mounting platform, the quantity of described connecting rod is two.Described printhead mounting platform is for fixedly mounting described printhead.Like this, when slide block is moved up and down on the guide rail of three columns by drive motors, the three-dimensional being converted into described feeding machanism and printhead mounting platform by described connecting rod that moves up and down of slide block moves, thus drives described printhead to do three-dimensional motion.
Preferably, the printhead mounting platform in the present embodiment is formed as block, and described printhead mounting platform is between described printhead and described feed unit.The lower surface of described printhead mounting platform and the body contact of described printhead.The middle part of described printhead mounting platform starts porose, and described feed unit 6 passed described hole and is communicated with described printhead.Make described printhead and described feed unit practice integral by the design of this structure, thus ensure the accurate supply of material while printhead stable motion can be ensured.
The feed unit 6 provided in the utility model embodiment as shown in Figure 2, described feed unit 6 comprises head tank, described feeding cylinder is arranged at above described printhead 3, the charging hole link above the lower end of feeding cylinder and described print head body, to described printhead inside supply moulding material.The opened upper end of described head tank, so that supplement moulding material in time in described feeding box.A kind of preferred technical scheme comprises, the top of described head tank operationally opens or closes, feed is carried out on the top can opening described head tank like this when needing supplementary material, closing the top of described printing bucket, avoiding the pollution of material when not needing feed.Further, in described feeding box, supply material can be automatic supply, is completed, also can select artificial interpolation by automatic supply device of the prior art, needs and arrange neatly according to different printing shapings.More preferably, the periphery of institute's head tank is also provided with heating film and head tank temperature sensor, and described head tank temperature sensor is connected with described heating film by control unit.Controlled the temperature of material by heating film and sensor, thus directly can carry out heating and melting after adding material, or keep the stable physical aspect of slurry in the printing adding slurry, be conducive to the raising of print quality.
More preferably, in order to keep continuous print material supply, being provided with temperature control equipment in described feed unit and the temperature of charge in described feeding box is controlled, and then controlling the physical characteristic of described material.Such as, the outer wall of described feeding box is provided with heating element heater, described feeding box is heated.Described heating element heater selectively adopts heating film or heating silica gel, described heating element heater can be set to fit with the subregion of described feeding box and also can be set to fit with the Zone Full of described feeding box, adopts this efficiency that can to ensure with the heating element heater of feeding box to heat of can fitting the moulding material in described feeding box can be made to be heated evenly thus ensure the homogeneity of moulding material simultaneously.Also temperature sensor is comprised at described temperature control equipment, described temperature sensor is for sensing the temperature of material, avoid because the excessive heat of material or homogeneous heating have an impact to its physics and chemistry characteristic, described temperature sensor is connected with described heating element heater, is controlled heating and the stopping of described heating element heater by the temperature controlling described temperature sensor senses; Described being connected can be connected indirectly by controller, and other modes being suitable for control temperature also can be adopted to realize.When printing chocolate or wax etc. and needing the article shaped of carrying out specified temp control, this setting can improve print quality significantly.
As shown in Figure 3, described printhead comprises: charging duct 9, chamber 10, motor, rotor mechanism and nozzle 11.Be connected with the described feed unit lower end in described charging duct, the upper end in described charging duct is connected with the chamber of described printhead, preferably, described duct is formed with predetermined angle of inclination, thus cushioning effect is played to the material that feed unit transports, make it flow to described printhead evenly inner.The top of described chamber is connected with described feed duct, and described in the bottom of described chamber, sprayer is connected; Described rotor mechanism holds in the cavity.Described rotor mechanism comprises driving gear 7 and driven gear 8, and driving gear 7 engages driven gear 8 and rotates.When rotor mechanism rotates, the printing material in feed unit is brought into chamber under the effect of gear, and under the effect of gear train, the nozzle connected from the below of chamber is discharged.The side of described chamber and the outer rim of described driving gear and driven gear fit tightly, and avoid the leakage printing material to cause the decline of printing precision like this.Described motor and described driving gear are connected to the power that described driving gear provides rotation.
Providing possibility by print head design of the present utility model for adopting above-mentioned feeding box, when gear train operates continuously, once slurries deficiency can supplement slurries raw material in feed unit in time in feed unit, thus realizing the advantage of continuous printing; Simultaneously this printhead goes for the material of various form, has and prints the strong advantage of adaptive, and fixes due to the tooth pitch of gear, thus can supply material exactly and significantly improve printing precision.
More preferably, described printhead is also provided with temperature control equipment, described temperature control equipment comprises chamber temp control device and nozzle temperature control device.Described cavity temperature control device, for controlling the temperature of the molding materials in described chamber, avoids the molding materials in cavity to produce situations such as blocking cavity.Such as, described chamber temp control device comprises and adds chamber thermal modules and chamber temp sensor, controls the start and stop work of described chamber heating module according to the temperature of the sensing of described chamber temp sensor.Described nozzle temperature control device comprises, and nozzle, by temperature sensor and nozzle heating module, controls the start and stop work of described nozzle heating module according to the temperature of the sensing of described injector nozzle temperature sensor.Unforeseeable, the utility model finds due to high to the required precision of material forming in 3 D-printing, thus the required precision of the article shaped material of nozzle discharge is accurate and stable, and being printed on the residual of as easy as rolling off a log generation moulding material in nozzle for a long time, the discharge precision of residual article shaped Effect of Materials nozzle even causes the obstruction of nozzle to cause and cannot work.The utility model embodiment is by carrying out to the temperature of nozzle accurately controlling effectively to ensure that the article shaped material of nozzle is discharged accurate and stable and avoids the obstruction of nozzle.
Further, described printer can also comprise cooling unit 5, and described cooling unit is connected with described nozzle, moves along with described nozzle movement, and described cooling unit discharge cold wind carries out cooling to the material that nozzle sprays and improves Forming Quality simultaneously.
The utility model embodiment may be used for chocolate printing, wax prints or in the printing of degradation plastic material, have wider tolerance, ensure that precision and the continuity of printing simultaneously for printing material.
Above detailed description of the invention is only the citing to the utility model optimal technical scheme, everyly all should include within protection domain of the present utility model the simple deletion of simple replacement and key element that the technical scheme in this detailed description of the invention carries out key element under utility model of the present utility model design.
Claims (10)
1. a three-dimensional printer, is characterized in that, described three-dimensional printer comprises: frame, printhead travel mechanism, feed unit and printhead;
Wherein
Described frame, for carrying the parts of described three-dimensional printer;
Described printhead travel mechanism, drives the motion of described printhead;
Described feed unit, is connected with described printhead, to described printhead supply 3 D-printing material;
Described printhead, comprises feeding-passage, chamber, rotor mechanism, nozzle; One end of described feeding-passage is connected with described feed unit, and the other end is connected with described chamber, the 3 D-printing material in described feed unit is directed to the chamber of described printhead; One end of described chamber is connected with described feeding-passage, and the other end is connected with institute nozzle; Described rotor mechanism is placed in described chamber, and described rotor mechanism comprises driving gear and driven gear, partly fits with the inwall of described chamber in the neighboring of described driving gear and driven gear.
2. three-dimensional printer according to claim 1, is characterized in that, described frame comprises column, upper frame and underframe.
3. three-dimensional printer according to claim 2, is characterized in that,
Described printhead travel mechanism comprises Linear Moving Module, connecting rod and printhead mounting platform;
Described Linear Moving Module moves up and down on described column, comprises drive motors, transmission mechanism, slide block and guide rail, and described guide rail is arranged on the column of described frame, described drive motors by transmission mechanism band movable slider at slide on rails;
One end of described connecting rod is connected with slide block by ball-joint, and the other end is connected with pumping unit mounting platform by ball-joint.
4. the three-dimensional printer according to any one of claim 1-3, it is characterized in that, described feed unit comprises head tank, described feeding cylinder is arranged at above described printhead, charging hole link above the lower end of feeding cylinder and described print head body, to described printhead inside supply 3 D-printing material.
5. three-dimensional printer according to claim 4, is characterized in that, the periphery of described feeding cylinder is also provided with heating film and head tank temperature sensor, and described head tank temperature sensor is connected with described heating film by control unit.
6. three-dimensional printer according to claim 5, is characterized in that, the middle part of described printhead mounting platform is provided with through hole, and described feed unit is connected with the chamber in described printhead through the through hole of described printhead mounting platform.
7. three-dimensional printer according to claim 4, is characterized in that, the open upper end of described head tank.
8. three-dimensional printer according to claim 1, is characterized in that, described three-dimensional printer is for printing chocolate or wax material.
9. three-dimensional printer according to claim 1, is characterized in that, described three-dimensional printer is for printing degradation material.
10. three-dimensional printer according to claim 1, is characterized in that, described 3 D-printing all comprises temperature control unit, and described temperature control unit comprises chamber temp control unit and nozzle temperature control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520127594.2U CN204687360U (en) | 2015-03-05 | 2015-03-05 | A kind of three-dimensional printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520127594.2U CN204687360U (en) | 2015-03-05 | 2015-03-05 | A kind of three-dimensional printer |
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| Publication Number | Publication Date |
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| CN204687360U true CN204687360U (en) | 2015-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520127594.2U Expired - Fee Related CN204687360U (en) | 2015-03-05 | 2015-03-05 | A kind of three-dimensional printer |
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| CN (1) | CN204687360U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105150545A (en) * | 2015-10-13 | 2015-12-16 | 北京多巴科技有限公司 | Granule feeding system for 3D printer |
| CN105599295A (en) * | 2015-12-22 | 2016-05-25 | 安徽省春谷3D打印智能装备产业技术研究院有限公司 | Three-dimensional printer provided with supply devices equipped with magnetic filter screens |
-
2015
- 2015-03-05 CN CN201520127594.2U patent/CN204687360U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105150545A (en) * | 2015-10-13 | 2015-12-16 | 北京多巴科技有限公司 | Granule feeding system for 3D printer |
| CN105150545B (en) * | 2015-10-13 | 2017-06-13 | 北京多巴科技有限公司 | A kind of 3D printer particulate material feeding system |
| CN105599295A (en) * | 2015-12-22 | 2016-05-25 | 安徽省春谷3D打印智能装备产业技术研究院有限公司 | Three-dimensional printer provided with supply devices equipped with magnetic filter screens |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20180305 |
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| CF01 | Termination of patent right due to non-payment of annual fee |