CN203680812U - Powder printer - Google Patents

Abstract

The utility model relates to a powder printer which comprises a frame, a material bin, a printing platform, a first driving assembly, a sliding assembly, a second driving assembly, a powder paving roller, a third driving assembly, a printer and fourth driving assembly, wherein the frame is provided with a working platform which is provided with a blanking platform and a hollowed part; a material bin is fixed on the frame and is located above the blanking platform, and a blanking opening is formed in the lower part of the material bin; the printing platform is embedded into the hollowed part; the first driving assembly is used for driving the printing platform to move along the height direction of the frame; the second driving assembly is used for driving the sliding assembly; the powder paving roller is pivoted on the sliding assembly; the third driving assembly is used for driving the powder paving roller to rotate; the printer is installed on the sliding assembly and is located on the front side of the powder paving roller; the fourth driving assembly is used for driving the printer to slide along the width direction of the frame. The powder printer provided by the utility model can realize stereo-lithography of a workpiece, precisely control the precision of the workpiece and improve the fidelity of the workpiece, and meanwhile, the structure of the printer is simplified and the printing efficiency of the workpiece is improved.

Description

Powder printer

Technical field

The utility model relates to powder printing technique field, is specifically related to a kind of powder printer.

Background technology

It is a kind of novel Workpiece shaping technique that powder is printed, it specifically utilizes pulverous printing consumables the principle of printing shaping to be fixed together with the form of bonding, powder printing device is compared to traditional mould molding technology, have that equipment cost is low, the fidelity high of printing shaping workpiece, therefore, in some handicraft process, powder printing technique is applied comparatively widely.

At present, powder printer is in the time of work, first the 3D model of workpiece is divided into some layers according to a predetermined direction, every one deck all forms a pattern with outline, then the powder in feed bin is successively laid on to print area, after every layer of paving powder completes, utilizes printer according to the pattern corresponding with this layer, glue to be printed on paving bisque, repeat such step, finally complete the moulding of workpiece; The powder printer of present stage is in the time completing above-mentioned action, often require the printer of printing glue to move up and down, in order to realize paving powder and the printing of different respective layer, the structure that so just makes powder printer is comparatively complicated, workpiece accuracy is restive and print speed is lower.

Utility model content

For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of powder printer, and it is simple in structure, efficiency is higher, and the workpiece accuracy printing is high.

For achieving the above object, the utility model adopts following technical scheme:

Powder printer, comprises,

Frame, is provided with a workbench in this frame, the hollow-out parts that is provided with a blanking platform on this workbench and is positioned at blanking platform front and arranges along the length direction of frame with blanking platform;

Be fixed in frame and be positioned at the feed bin of blanking platform top, the bottom of this feed bin is provided with feed opening;

Be embedded in the print platform of hollow-out parts inside;

For the first driven unit that drives print platform to move along bracket height direction;

Slide assemblies;

For drive slide assemblies along the length direction of frame at the second driven unit moving above blanking platform and between above print platform leading section;

Be articulated in the powder-laying roller extending on slide assemblies and along frame width;

For the 3rd driven unit that drives powder-laying roller to rotate;

Be arranged on slide assemblies and be positioned at the printer of powder-laying roller front side, this printer is for being printed on print platform by the glue of bond powders;

For the 4th driven unit that drives printer to slide along the width of frame.

In frame, be installed with around the baffle plate of print platform outer peripheral edges, this baffle plate upper end extends to the top of hollow-out parts, and the top end face of baffle plate is concordant with the upper surface of blanking platform.

The first driven unit comprises that body is fixed on the first motor in frame, extends and be synchronously connected in the feed screw nut on drive lead screw that is socketed in of drive lead screw on the first machine shaft, coupling along the short transverse of frame, and print platform is fixedly connected on feed screw nut; In frame, be fixed with the Der Laengslenker extending along bracket height direction, what print platform slided is socketed on Der Laengslenker.

Slide assemblies comprises the crossbeam and two slide blocks that are separately fixed at crossbeam two ends that extend along frame width, and the both sides of frame are respectively arranged with a slide rail extending along its length, and two slide blocks are slidably matched with two slide rails respectively.

On feed bin, the rotating striker plate that is covered in feed opening below that is provided with, is provided with a flexible member between this striker plate and feed bin, this flexible member for provide one by striker plate towards the elastic stress of pressing near feed opening top; On slide assemblies, be provided with one and slide into blanking platform when top top splenium for striker plate is pressed towards the direction top away from feed opening when slide assemblies.

The beneficial effects of the utility model are:

Than prior art, powder printer of the present utility model is realized moving up and down of print platform, only use plane printer, just can realize the stereo shaping of workpiece, can control accurately the precision of workpiece, improve the fidelity of workpiece, meanwhile, simplified printer structure, improved the efficiency that workpiece is printed.In addition, the utility model can be realized the rapid shaping of powder, and, can, in the different color of the inner interpolation of glue, realize the full-color printing of workpiece.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is side view of the present utility model;

Fig. 3 is the utility model partial structurtes schematic diagrames;

Wherein: 10, frame; 11, blanking platform; 12, slide rail; 13, driving belt; 20, feed bin; 21, striker plate; 30, slide assemblies; 31, slide block; 32, crossbeam; 321, top splenium; 40, print platform; 41, baffle plate; 42, the first motor; 43, drive lead screw; 44, Der Laengslenker; 51, horizontal guide rod; 52, printer; 53, the 4th motor; 54, driving belt; 61, powder-laying roller; 62, the 3rd motor.

Detailed description of the invention

Below, by reference to the accompanying drawings and detailed description of the invention, the utility model is described further:

As Fig. 1, 2, shown in 3, for a kind of powder printer of the present utility model, it comprisesframe 10,feed bin 20,print platform 40,slide assemblies 30, powder-laying roller 61,printer 52, wherein,frame 10 is as the basis of whole powder printer, wherein the X in diagram is to the length direction that isframe 10, Y-direction is the width offrame 10, Z-direction is the short transverse offrame 10,frame 10 tops are a workbench, on this workbench, rearward position is provided with ablanking platform 11, the forward position of workbench is provided with a hollow-out parts, this hollow-out parts andblanking platform 11 are arranged along the length direction offrame 10,feed bin 20 is fixed on the upper offrame 10 by a support and is positioned at the top ofblanking platform 11, thesefeed bin 20 bottoms are provided with a feed opening, the feed opening offeed bin 20 can be a strip opening extending alongframe 10 widths, also can be multiple through holes of arranging alongframe 10 widths, feed opening falls for the powder offeed bin 20 inside, the powder falling is stacked onblanking platform 11, rabbling mechanism can be installed infeed bin 20 inside, for the powder offeed bin 20 inside can be fallen from feed opening smoothly,print platform 40 is embedded in hollow-out parts, it can pass through the drive of one first driven unit, short transverse inframe 10 is up and down,print platform 40 upper surfaces form a print area, this print area, is also printed glue thereon forconfession printer 52 for the tiling for powder thereon simultaneously.The first driven unit comprisesfirst motor 42 of body partial fixing inframe 10, extends and be synchronously connected in the feed screw nut's (not shown) ondrive lead screw 43 that is socketed in ofdrive lead screw 43 in thefirst motor 42 rotating shafts, coupling along the short transverse offrame 10, andprint platform 40 is fixedly connected on feed screw nut; Inframe 10, be fixed with the Der Laengslenker 44 extending alongframe 10 short transverses, whatprint platform 40 slided is socketed on Der Laengslenker 44, thus, under the drive of thefirst motor 42,print platform 40 can move up and down along the short transverse offrame 10, and lead screw transmission mechanism can be controlled the displacement thatprint platform 40 moves down accurately.Certainly, in order to realize moving up and down ofprint platform 40, this first driven unit can also be other similar structures, for example, by the belt gear of driven by motor, can be also thatprint platform 40 is directly fixedly connected on the movable axis of linear electric motors.

Whatslide assemblies 30 slided is arranged inframe 10, it can slide along the length direction offrame 10, concrete is,slide assemblies 30 comprises thecrossbeam 32 and twoslide blocks 31 that are separately fixed atcrossbeam 32 two ends that extend alongframe 10 widths, the width both sides offrame 10 are respectively arranged with aslide rail 12 extending along its length, twoslide blocks 31 are slidably matched with twoslide rails 12 respectively, and ensure thatcrossbeam 32 is positioned at the over top of frame 10.Slide assemblies 30 is driven by one second driven unit, under the drive of this second driven unit,slide assemblies 30 can be along the length direction offrame 10 aboveblanking platform 11 and motion between the leading section of print platform 40 (away fromblanking platform 11 one end) top, concrete is, the second driven unit comprises one second motor (not shown) and adriving belt 13, the body of this second motor is fixed inframe 10, the two ends ofdriving belt 13 are installed in respectively the belt pulley tensioning offrame 10 rear and front ends, one of them belt pulley for tensioningdriving belt 13 of the second driven by motor, one of themslide block 31 is fixed ondriving belt 13, thereby, under the drive of the second motor, can makeslide assemblies 30 slide along the length direction offrame 10, powder-laying roller 61 andprinter 52 are installed onslide assemblies 30, can be along withslide assemblies 30 moves along the length direction offrame 10.

Powder-laying roller 61 extends along the width offrame 10, it is articulated onslide assemblies 30, concrete is, powder-laying roller 61 is positioned at the rear side ofcrossbeam 32, its two ends are articulated in respectively on twoslide blocks 31, and this powder-laying roller 61 rotates around its central axis under the drive of one the 3rd driven unit, and the 3rd driven unit is one the3rd motor 62, the body partial fixing of the3rd motor 62 is therein on aslide block 31, and its rotating shaft is synchronizeed and connected with the respective end of powder-laying roller 61 in bel-drivenn mode; The 3rd driven unit can also be other mechanisms that can drive powder-layingroller 61 to rotate.

Printer 52 is arranged on the front side ofslide assemblies 30, and its inner printing consumables is the glue that powder can be bonded together, andprinter 52 is for being printed on glue print platform 40.Oncrossbeam 32, being installed with two mutually staggers and extendshorizontal guide rod 51 along the width offrame 10, whatprinter 52 slided is socketed on twohorizontal guide rods 51, and thisprinter 52 can be under the drive of one the 4th driven unit slide on two horizontal guide rods 51 (sliding along the width of frame 10), the 4th driven unit comprises the4th motor 53 and adriving belt 54, thisdriving belt 54 is driven by the4th motor 53,printer 52 is fixedly connected ondriving belt 54, start the4th motor 53, can drive the width motion ofprinter 52 in frame 10.Certainly, also the 4th driven unit can also be other mechanisms, for example, can be the lead screw transmission mechanism that has driven by motor.

In above-mentionedframe 10, be installed with around thebaffle plate 41 ofprint platform 40 outer peripheral edges, the upper surface of the inner surface of thisbaffle plate 41 andprint platform 40 surrounds the chamber of a upper opening, whenprint platform 40 moves downward, the degree of depth of above-mentioned chamber constantly increases, thereby can hold gradually more powder bed,baffle plate 41 is when preventing from spreading powder, and powder leaks outside to print platform 40.The top end face ofbaffle plate 41 is concordant with the upper surface ofblanking platform 11.

The utility model is in the time of work,slide assemblies 30 moves to blankingplatform 11 tops, distance between the top end face of the upper surface ofprint platform 40 andbaffle plate 41 is just in time equivalent to once spread the thickness of powder, now, powder-layingroller 61 is positioned at the feed opening bottom rear side offeed bin 20, quantitative powder is from the feed opening offeed bin 20 and be deposited onblanking platform 11 and be positioned at the front side of powder-laying roller 61, the second electric motor starting forward, the3rd motor 62 starts,slide assemblies 30 moves towards the leading section ofprint platform 40, drive powder-laying roller 61 to move towardsprint platform 40 leading sections, in the process moving at powder-layingroller 61, powder-layingroller 61 rotates around its central shaft, the powder being deposited onblanking platform 11 is laid onprint platform 40, in the time thatslide assemblies 30 moves to printplatform 40 leading section top,baffle plate 41 is full of powder with the chamber interior front portion thatprint platform 40 surrounds, and, in the process thatslide assemblies 30 moves aboveprint platform 40, powder-laying roller 61 will riddle the powder roll extrusion tiling of above-mentioned chamber, afterwards, the second electric motor starting reversiondrive slide assemblies 30 to move towards the direction ofblanking platform 11, the4th motor 53 starts simultaneously, driveprinter 52 to move at the width offrame 10, so, the two-axle interlocking mechanism forming makesprinter 52 on theprint platform 40 of having laid powder, print glue according to the hierarchical file of workpiece, glue is printed the pattern corresponding with hierarchical file on powder bed, in the time thatslide assemblies 30 moves to blankingplatform 11 top, completing glue prints, powder bonding forming in the scope that glue is printed it, thefirst motor 42drives print platform 40 to move down a distance h, this distance h just in time equals the thickness of a powder bed, now, thefeed bin 20 quantitative powder that again falls, powder-layingroller 61 is positioned at the rear side of the powder falling, prepare to spread powder action next time, repeat said process, the chamber interior finally surrounding atprint platform 40 andbaffle plate 41 is filled up powder, to do not removed by the bonding powder of glue, finally complete the printing of workpiece.

For the ease of operation, therotating striker plate 21 that is provided with on above-mentionedfeed bin 20, thisstriker plate 21 is covered in the feed opening below offeed bin 20, betweenstriker plate 21 andfeed bin 20, be provided with a flexible member, the elastic stress of this flexible member for providing onestriker plate 21 is pressed towards close feed opening top, flexible member can be arranged onstriker plate 21 with respect to the torsion spring onfeed bin 20 turning cylinders, torsion spring two free endsbutt striker plate 21 andfeed bin 20 respectively, can certainly be one to be connected to the extension spring betweenstriker plate 21 free ends andfeed bin 20, in a word, can be in the time not being subject to external force, make the feed opening thatstriker plate 21 can capping feed bin 20.On above-mentionedcrossbeam 32, be provided with atop splenium 321, thistop splenium 321 can be the upwardly extending platy structure of upper surface bycrossbeam 32, in the time that slideassemblies 30 slides intoblanking platform 11 top,top splenium 321 just in time backs downstriker plate 21 towards the direction away from feed opening,, in the time that powder-layingroller 61 moves to the position of preparing paving powder,striker plate 21 is just in time opened, and powder is fallen.

To one skilled in the art, can be according to technical scheme described above and design, make other various corresponding changes and deformation, and within these all changes and deformation all should belong to the protection domain of the utility model claim.

Claims (5)

1.powder printer, is characterized in that, comprises,

frame, is provided with a workbench in this frame, the hollow-out parts that is provided with a blanking platform on this workbench and is positioned at blanking platform front and arranges along the length direction of frame with blanking platform;

be fixed in frame and be positioned at the feed bin of blanking platform top, the bottom of this feed bin is provided with feed opening;

be embedded in the print platform of hollow-out parts inside;

for the first driven unit that drives print platform to move along bracket height direction;

slide assemblies;

for drive slide assemblies along the length direction of frame at the second driven unit moving above blanking platform and between above print platform leading section;

be articulated in the powder-laying roller extending on slide assemblies and along frame width;

for the 3rd driven unit that drives powder-laying roller to rotate;

be arranged on slide assemblies and be positioned at the printer of powder-laying roller front side, this printer is for being printed on print platform by the glue of bond powders;

for the 4th driven unit that drives printer to slide along the width of frame.

2.powder printer as claimed in claim 1, is characterized in that, is installed with around the baffle plate of print platform outer peripheral edges in frame, and this baffle plate upper end extends to the top of hollow-out parts, and the top end face of baffle plate is concordant with the upper surface of blanking platform.

3.powder printer as claimed in claim 1, it is characterized in that, the first driven unit comprises that body is fixed on the first motor in frame, extends and be synchronously connected in the feed screw nut on drive lead screw that is socketed in of drive lead screw on the first machine shaft, coupling along the short transverse of frame, and print platform is fixedly connected on feed screw nut; In frame, be fixed with the Der Laengslenker extending along bracket height direction, what print platform slided is socketed on Der Laengslenker.

4.powder printer as claimed in claim 1, it is characterized in that, slide assemblies comprises the crossbeam and two slide blocks that are separately fixed at crossbeam two ends that extend along frame width, the both sides of frame are respectively arranged with a slide rail extending along its length, and two slide blocks are slidably matched with two slide rails respectively.

5.powder printer as claimed in claim 4, it is characterized in that, the rotating striker plate that is covered in feed opening below that is provided with on feed bin, between this striker plate and feed bin, be provided with a flexible member, the elastic stress of this flexible member for providing one striker plate is pressed towards close feed opening top; On slide assemblies, be provided with one and slide into blanking platform when top top splenium for striker plate is pressed towards the direction top away from feed opening when slide assemblies.

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