CN104043830B - Increase material manufacturing equipment and compound rolling power spreading device, method - Google Patents
Increase material manufacturing equipment and compound rolling power spreading device, method Download PDFInfo
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- CN104043830B CN104043830B CN201410298468.3A CN201410298468A CN104043830B CN 104043830 B CN104043830 B CN 104043830B CN 201410298468 A CN201410298468 A CN 201410298468A CN 104043830 B CN104043830 B CN 104043830B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
A kind of increasing material manufacturing equipment compound rolling power spreading device and method, power spreading device comprises pressure Powder spreader, and pressure Powder spreader has the applicator surface at certain angle of inclination, for laying dusty material; And vibrational system, the dusty material that vibrational system is used for laying carries out vibrating compacting.Power spreading device of the present invention has the applicator surface at certain angle of inclination due to pressure Powder spreader, like this in paving powder process, after loose powder enters the angle that applicator surface and paving powder plane formed, the space reduced gradually just can make the loose powder of heating mutually be extruded, thus make the gap smaller between powder, further because vibrational system carries out vibration pressurization to the powder after being squeezed, the powder gap distribution arrangement after extruding is made to be able to firm, namely the resilience of laying powder is reduced, thus make dusty material reach plastic deformation, and then compacting effect is played to the powder paved, therefore improve three-dimensionally shaped product compactness, and then improve its mechanical performance.
Description
Technical field
The invention belongs to quick forming fabri-cation field, be specifically related to a kind of increasing material manufacturing equipment and compound rolling power spreading device, method.
Background technology
Rapid shaping technique (RapidPrototyping, be called for short RP) be an advanced manufacturing technology with distinguishing features such as Digitized manufacturing, highly flexible and adaptability, directly cad model drive, quick, material type is rich and varied, be developed so far from later 1980s, oneself becomes a mainstay in modern advanced manufacturing technique.Selective laser sintering (SelectiveLaserSintering, be called for short SLS) be development in recent years one of rapid shaping technique the most rapidly, it take dusty material as raw material, the cross section of laser to 3D solid is adopted successively to scan raw basin, not by the restriction of part shape complexity, without any need for moulds of industrial equipment, applied range.The basic process of selective laser sintering technique is: a certain amount of powder is delivered to work top by dust feeder, one deck dusty material is laid in the upper surface of the molded part of moulding cylinder by power spreading device, powder is heated to the powder sintering temperatures set by heater, galvanometer controls laser instrument and scans solid section powder bed according to the cross section profile of this layer, make the temperature of powder rise to melting point, powder smelting sintering also realizes bonding with in type part below; After a layer cross section has sintered, workbench has declined the thickness of a layer, and power spreading device at layer overlay powder uniformly densely above, carries out the scanning sintering of a new layer cross section, through some layers of scanning superposition, until complete whole raw basin again.
In the above prior art, what power spreading device generally adopted is powder-laying roller cylinder or scraper plate, although existing power spreading device also can realize the function of powder feeding and spreading, but because the powder laid is loose nature, namely the gap between powder particle and particle is larger, therefore the three-dimensionally shaped product compactness obtained by the powder manufacture of this loose nature is poor, finally have impact on the mechanical performance of three-dimensionally shaped product.
Summary of the invention
The object of the invention is to, for prior art Problems existing, provide a kind of and increase material manufacturing equipment and compound rolling power spreading device, method.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of increasing material manufacturing equipment compound rolling power spreading device, comprising:
Pressure Powder spreader, described pressure Powder spreader has the applicator surface at certain angle of inclination, for laying powder; And
Vibrational system, the powder that described vibrational system is used for laying carries out vibrating compacting.
Further preferably, described power spreading device also comprises guide rail, and described guide rail is arranged on the both sides of work top; Described pressure Powder spreader is arranged on guide rail, and can move on guide rail.
Further preferably, described pressure Powder spreader is paving powder plate, the bottom of described paving powder plate comprises first area and second area, has a bar-shaped trough in described first area along the direction of moving perpendicular to paving powder plate, and described second area tilts at an angle with paving powder plane.
Further preferably, described second area is 0.1 ° ~ 5 ° with paving powder plane and tilts.
Further preferably, described pressure Powder spreader is paving powder plate, the bottom of described paving powder plate comprises first area, second area and the 3rd region, a bar-shaped trough is had along the direction of moving perpendicular to paving powder plate in described first area, described second area and the 3rd region are arranged on the both sides of first area, and described second area tilts at an angle with paving powder plane, described 3rd region tilts at an angle with paving powder plane.
Further preferably, described 3rd region is 0.1 ° ~ 5 ° with paving powder plane and tilts.
Further preferably, described 3rd region and second area are symmetricly set on the both sides of first area.
Further preferably, described vibrational system involving vibrations plate and supersonic generator, described oscillating plate is arranged in bar-shaped trough, and the length of oscillating plate is more than or equal to the width of paving powder plane, described supersonic generator is connected with oscillating plate, for driving vibration plate vibrates.
Further preferably, described power spreading device also comprises beam, and described beam is arranged between oscillating plate and paving powder plate.
Further preferably, described paving powder plate is cambered surface for promoting the side lower part of powder.
A kind of increase material manufacturing equipment, comprise for the power spreading device laying heater that dusty material heats and above-mentioned any embodiment.
Adopt an increasing material manufacture method for above-mentioned increasing material manufacturing equipment, comprise the following steps:
Step one: on the surface adopting the pressure Powder spreader with certain angle of inclination dusty material to be coated in carrier or on the layer of final curing, and adopting vibrational system to carry out vibrating compacting to the dusty material applied, heater heats in the laying of dusty material;
Step 2: when the temperature of dusty material reaches sintering temperature, is cured the dusty material completed by laser or other energy source on the layer position corresponding to the cross section of three-dimensional body;
Repeat step one and step 2, until three-dimensional body completes.
Further preferably, on the surface that the power spreading device of above-mentioned any embodiment can be adopted in step one dusty material to be coated in carrier or on the layer of final curing.
Further preferably, by vibrational system, vibrating compacting is carried out to the dusty material applied, make dusty material plastic deformation.
Increasing material manufacturing equipment compound rolling power spreading device of the present invention, because pressure Powder spreader has the applicator surface at certain angle of inclination, like this in paving powder process, after loose powder enters the angle that applicator surface and paving powder plane formed, the space reduced gradually just can make the loose powder of heating mutually be extruded, thus make the gap smaller between powder, further because vibrational system carries out vibration pressurization to the powder after being squeezed, the powder gap distribution arrangement after extruding is made to be able to firm, namely the resilience of laying powder is reduced, thus make dusty material reach plastic deformation, and then compacting effect is played to the powder paved, therefore the present invention increases material manufacturing equipment compound rolling power spreading device and improves three-dimensionally shaped product compactness, and then improve its mechanical performance.
Increasing material manufacturing equipment of the present invention, above-mentionedly has the power spreading device reducing gap between powder and compacting powder by comprising, thus makes to increase the compactness that material manufacturing equipment improves three-dimensionally shaped product, and then improve its mechanical performance.
The increasing material manufacture method of the increasing material manufacture method of employing of the present invention above-mentioned increasing material manufacturing equipment, on surface dusty material being coated in carrier by adopting the pressure Powder spreader with certain angle of inclination or on the layer of final curing, and adopt vibrational system to carry out vibrating compacting to the dusty material applied, so just, after make loose powder enter angle that applicator surface and paving powder plane formed, the space reduced gradually just can make the loose powder of heating mutually be extruded, thus make the gap smaller between powder, further because vibrational system carries out vibration pressurization to the powder after being squeezed, the powder gap distribution arrangement after extruding is made to be able to firm, namely the resilience of laying powder is reduced, thus make dusty material reach plastic deformation, and then compacting effect is played to the powder paved, therefore the present invention increases material manufacture method and improves three-dimensionally shaped product compactness, and then improve its mechanical performance.
Accompanying drawing explanation
Fig. 1 is the top view that the present invention increases the embodiment that material manufacturing equipment compound rolling power spreading device provides;
Fig. 2 is the sectional view of a kind of embodiment of Fig. 1 middle berth powder plate;
Fig. 3 is the sectional view of the another kind of embodiment of Fig. 1 middle berth powder plate;
Fig. 4 is the top view that the present invention increases another embodiment that material manufacturing equipment compound rolling power spreading device provides;
Fig. 5 is the sectional view of a kind of embodiment of Fig. 4 middle berth powder plate;
Fig. 6 is the sectional view of the another kind of embodiment of Fig. 4 middle berth powder plate;
Marginal data:
1, supersonic generator; 2, powder plate is spread; 3, oscillating plate; 4, guide rail; 5, powder plane is spread; 6, beam; 7, side lower part.
Detailed description of the invention
Below with reference to Figure of description and specific embodiment, the present invention is described in further details.
The core that the present invention increases material manufacturing equipment compound rolling power spreading device is, the compound rolling power spreading device of inclined-plane paving powder and the vibration of Pu Fen limit, limit is adopted to replace powder-laying roller cylinder of the prior art, better compacting effect can be played to dusty material like this, thus improve the compactness of three-dimensionally shaped product.Inventor is based on this inventive concept, and finally provide a kind of increasing material manufacturing equipment compound rolling power spreading device through creatively working, comprise pressure Powder spreader, described pressure Powder spreader has the applicator surface at certain angle of inclination, for laying powder; And vibrational system, the powder that described vibrational system is used for laying carries out vibrating compacting.
In concrete enforcement, described power spreading device also comprises guide rail, and described guide rail is arranged on the both sides of work top; Described pressure Powder spreader is arranged on guide rail, and can move on guide rail.
In concrete enforcement, described pressure Powder spreader is paving powder plate, the bottom of described paving powder plate comprises first area and second area, has a bar-shaped trough in described first area along the direction of moving perpendicular to paving powder plate, and described second area tilts at an angle with paving powder plane.Further preferably, the bottom of described paving powder plate also comprises the 3rd region, and described 3rd region tilts at an angle with paving powder plane, when can make paving powder plate back and forth movement like this on guide rail, two-way powder feeding and spreading can be realized, thus improve the paving powder efficiency of power spreading device.Further preferably, described 3rd region and second area are symmetricly set on the both sides of first area.
It should be noted that at this, paving powder plane refers to that paving powder plate institute spreads the plane of powder, and powder sintered by what carry out from level to level in this paving powder plane, finally obtain three-dimensionally shaped product, wherein the width of above-mentioned paving powder plane is perpendicular to the moving direction spreading powder plate.In concrete enforcement, above-mentioned paving powder plate can adopt steel part or foundry goods.
In concrete enforcement, described vibrational system involving vibrations plate and supersonic generator, described oscillating plate is arranged in bar-shaped trough, and the length of oscillating plate is more than or equal to the width of paving powder plane, described supersonic generator is connected with oscillating plate, for driving vibration plate vibrates.
In addition, above-mentioned supersonic generator can be arranged on rapid forming equipment Electric Appliance Cabinet on or equipment cavity is external arbitrarily can installation site.
Be understandable that, above-mentioned paving powder plate is connected with driving mechanism, and driving mechanism drives paving powder plate to move on guide rail, and this driving mechanism can be motor or other power source parts.It should be noted that at this, what only relate to due to inventive point of the present invention is the improvement of power spreading device, and other parts increasing material manufacturing equipment are prior art, are not therefore described in detail the overall structure increasing material manufacturing equipment in this application.
Be understandable that, above-mentioned pressure Powder spreader is while laying powder, and heater heats the powder laid, and because heater belongs to the existing parts increasing material and manufacture, therefore, is not described in detail it in power spreading device of the present invention.
As another kind of preferred embodiment of the present invention, described power spreading device also comprises beam, described beam is arranged between oscillating plate and paving powder plate, can isolate or reduce the vibration effect of oscillating plate to paving powder plate like this, thus ensure the reliability increasing the work of material manufacturing equipment.
As another preferred embodiment of the present invention, described paving powder plate be cambered surface for promoting the side lower part of powder, this cambered surface can increase to be waited to spread the mobility of powder, namely strengthens paving powder effect.
In order to make those skilled in the art can understand better and realize technical scheme of the present invention, below in conjunction with Figure of description and specific embodiment, the present invention is described in further details.
Fig. 1 the present invention increases the top view of the embodiment that material manufacturing equipment compound rolling power spreading device provides, Fig. 2 is the sectional view of a kind of embodiment of Fig. 1 middle berth powder plate, consult Fig. 1 and Fig. 2 known, increase material manufacturing equipment compound rolling power spreading device and comprise guide rail 4, paving powder plate 2, oscillating plate 3, beam 6 and supersonic generator 1, described guide rail 4 is arranged on the both sides of work top, the corner reductor of scene 2 is entered in servomotor drive one, two, left and right Timing Belt is made to drive paving powder plate 2 to move on guide rail 4, the bottom of described paving powder plate 2 comprises first area I and second area II, described second area II and paving powder plane 5 are in α angular slope, the span at described α angle is 0.1 ° ~ 5 °, the concrete inclination angle value at certain α angle needs the material according to powder and determines, such as when adopting nylon powder, α then can be set as 0.5 °-2 °, described first area I can be parallel with paving powder plane 5, a bar-shaped trough is had along the direction of moving perpendicular to paving powder plate 2 in described first area I, described oscillating plate 3 is arranged in bar-shaped trough by beam 6, and the length of oscillating plate 3 is slightly larger than spreading the width d(of powder plane 5 as shown in Figure 1), described supersonic generator 1 is connected with oscillating plate 3, vibrate for driving oscillating plate 3, namely while pawnshop powder plate 2 drives paving powder by servomotor, supersonic generator 1 drives oscillating plate 3 to vibrate, thus achieve Pu Fen limit, limit vibration powder.This embodiment power spreading device is in paving powder process, owing to the second area II bottom paving powder plate 2 being set to and spreading powder plane 5 and tilt at an angle, after such loose powder enters the angle of second area II, the space reduced gradually just can make the loose powder of heating mutually be extruded, thus make the gap smaller between powder, when powder continues to enter first area I, further because oscillating plate 3 carries out vibration pressurization to the powder after being squeezed, the powder gap distribution arrangement after extruding is made to be able to firm, namely the resilience of laying powder is reduced, thus make powder reach plastic deformation, and then compacting effect is played to the powder paved, therefore power spreading device of the present invention improves the compactness of three-dimensionally shaped product, and then improve its mechanical performance.
On the basis of a upper embodiment further preferably, the side lower part 7 being used for promoting powder of described paving powder plate 2 can be set to cambered surface, as shown in Figure 3, which increase the mobility waiting to spread powder, namely strengthen the paving powder effect of paving powder plate 2.
Fig. 4 the present invention increases the top view of another embodiment that material manufacturing equipment compound rolling power spreading device provides, Fig. 5 is the sectional view of a kind of embodiment of Fig. 4 middle berth powder plate, consult Fig. 4 and Fig. 5 known, increase material manufacturing equipment compound rolling power spreading device and comprise guide rail 4, paving powder plate 2, oscillating plate 3, beam 6 and supersonic generator 1, described guide rail 4 is arranged on the both sides of work top, the corner reductor of scene 2 is entered in servomotor drive one, two, left and right Timing Belt is made to drive paving powder plate 2 to move on guide rail 4, the bottom of described paving powder plate 2 comprises first area I, second area II and the 3rd region III, described second area II and paving powder plane 5 are in α angular slope, described 3rd region III and paving powder plane 5 are in β angular slope, and described 3rd region III and second area II are symmetricly set on the both sides of first area I, described α, the span at β angle is 0.1 ° ~ 5 °, certain α, the concrete inclination angle value at β angle needs the material according to powder and determines.Described first area I can be parallel with paving powder plane 5, a bar-shaped trough is had along the direction of moving perpendicular to paving powder plate 2 in described first area I, described oscillating plate 3 is arranged in bar-shaped trough by beam 6, and the length of oscillating plate 3 is slightly larger than spreading the width d(of powder plane 5 as shown in Figure 4), described supersonic generator 1 is connected with oscillating plate 3, vibrate for driving oscillating plate 3, namely while pawnshop powder plate 2 drives paving powder by servomotor, supersonic generator 1 drives oscillating plate 3 to vibrate, thus achieves Pu Fen limit, limit vibration powder.This embodiment is same with a upper embodiment (see figure 2) can play the function tamping powder, difference is also, the bottom of the paving powder plate 2 of power spreading device also comprises the 3rd region III, described 3rd region III tilts at an angle with paving powder plane 5, and described 3rd region III and second area II are symmetricly set on the both sides of first area I, when such pawnshop powder plate 2 moves from left to right on guide rail 4 (as shown in Figure 5), owing to the second area II bottom paving powder plate 2 being set to and spreading powder plane 5 and tilt at an angle, like this after loose powder enters the angle of second area II, the space reduced gradually just can make the loose powder of heating mutually be extruded, thus make the gap smaller between powder, when powder continues to enter first area I, again because oscillating plate 3 carries out vibration pressurization to the powder after being squeezed, the powder gap distribution arrangement after extruding is made to be able to firm, namely the resilience of laying powder is reduced, thus make powder reach plastic deformation, and then compacting effect is played to the powder paved, and pawnshop powder plate 2 when moving from right to left on guide rail, in like manner owing to the 3rd region III bottom paving powder plate 2 being set to and spreading powder plane 5 and tilt at an angle, like this after loose powder enters the angle in the 3rd region III, the space reduced gradually just can make the loose powder of heating mutually be extruded, thus make the gap smaller between powder, when powder continues to enter first area I, again because oscillating plate 3 carries out vibration pressurization to the powder after being squeezed, the powder gap distribution arrangement after extruding is made to be able to firm, namely the resilience of laying powder is reduced, thus make powder reach plastic deformation, and then compacting effect is played to the powder paved, as from the foregoing, this embodiment can realize two-way powder laying, thus improve the paving powder efficiency of power spreading device.
On the basis of a upper embodiment further preferably, the side lower part 7 being used for promoting powder of described paving powder plate 2 can be set to cambered surface, as shown in Figure 6, which increase the mobility waiting to spread powder, namely strengthen the paving powder effect of paving powder plate 2.
Present invention also offers and a kind of increase material manufacturing equipment, described increasing material manufacturing equipment comprises for the power spreading device laying heater that dusty material heats and above-mentioned any embodiment.
Present invention also offers a kind of increasing material manufacture method adopting the increasing material manufacture method of above-mentioned increasing material manufacturing equipment, comprise the following steps:
Step one: on the surface adopting the pressure Powder spreader with certain angle of inclination dusty material to be coated in carrier or on the layer of final curing, and adopting vibrational system to carry out vibrating compacting to the dusty material applied, heater heats in the laying of dusty material;
Step 2: when the temperature of dusty material reaches sintering temperature, is cured the dusty material completed by laser or other energy source (such as, electron beam) on the layer position corresponding to the cross section of three-dimensional body;
Repeat step one and step 2, until three-dimensional body completes.
In concrete enforcement, on the surface that the power spreading device of above-mentioned any embodiment can be adopted in step one dusty material to be coated in carrier or on the layer of final curing.
In concrete enforcement, by vibrational system, vibrating compacting is carried out to the dusty material applied, make dusty material plastic deformation.
Increasing material manufacture method of the present invention, on surface dusty material being coated in carrier by adopting the pressure Powder spreader with certain angle of inclination or on the layer of final curing, and adopt vibrational system to carry out vibrating compacting to the dusty material applied, so just, after make loose powder enter angle that applicator surface and paving powder plane formed, the space reduced gradually just can make the loose powder of heating mutually be extruded, thus make the gap smaller between powder, further because vibrational system carries out vibration pressurization to the powder after being squeezed, the powder gap distribution arrangement after extruding is made to be able to firm, namely the resilience of laying powder is reduced, thus make dusty material reach plastic deformation, and then compacting effect is played to the powder paved, therefore the present invention increases the compactness that material manufacture method improves three-dimensionally shaped product, and then improve its mechanical performance.
Above embodiment is only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, and all technical schemes belonged under thinking of the present invention all should belong to protection scope of the present invention.It should be pointed out that some amendments without departing from the principles of the present invention and modification, should protection scope of the present invention be considered as.
Claims (11)
1. increase a material manufacturing equipment compound rolling power spreading device, it is characterized in that, comprising:
Pressure Powder spreader, described pressure Powder spreader has the applicator surface at certain angle of inclination, for laying dusty material; And
Vibrational system, the dusty material that described vibrational system is used for laying carries out vibrating compacting; Wherein,
Described vibrational system involving vibrations plate and supersonic generator;
Described pressure Powder spreader is paving powder plate, the bottom of described paving powder plate comprises first area and second area, have a bar-shaped trough along the direction of moving perpendicular to paving powder plate in described first area, described oscillating plate is arranged in bar-shaped trough, and described second area tilts at an angle with paving powder plane; Or
Described pressure Powder spreader is paving powder plate, the bottom of described paving powder plate comprises first area, second area and the 3rd region, a bar-shaped trough is had along the direction of moving perpendicular to paving powder plate in described first area, described oscillating plate is arranged in bar-shaped trough, described second area and the 3rd region are arranged on the both sides of first area, and described second area tilts at an angle with paving powder plane, described 3rd region tilts at an angle with paving powder plane.
2. increasing material manufacturing equipment compound rolling power spreading device according to claim 1, it is characterized in that, described power spreading device also comprises guide rail, and described guide rail is arranged on the both sides of work top; Described pressure Powder spreader is arranged on guide rail, and can move on guide rail.
3. increasing material manufacturing equipment compound rolling power spreading device according to claim 1, is characterized in that, described second area is 0.1 ° ~ 5 ° with paving powder plane and tilts.
4. increasing material manufacturing equipment compound rolling power spreading device according to claim 1, is characterized in that, described 3rd region is 0.1 ° ~ 5 ° with paving powder plane and tilts.
5. increasing material manufacturing equipment compound rolling power spreading device according to claim 4, it is characterized in that, described 3rd region and second area are symmetricly set on the both sides of first area.
6. the increasing material manufacturing equipment compound rolling power spreading device according to any one of claim 1-5, is characterized in that, the length of oscillating plate is more than or equal to the width of paving powder plane, and described supersonic generator is connected with oscillating plate, for driving vibration plate vibrates.
7. increasing material manufacturing equipment compound rolling power spreading device according to claim 6, it is characterized in that, described power spreading device also comprises beam, and described beam is arranged between oscillating plate and paving powder plate.
8. increasing material manufacturing equipment compound rolling power spreading device according to claim 7, is characterized in that, described paving powder plate be cambered surface for promoting the side lower part of powder.
9. increasing a material manufacturing equipment, it is characterized in that, comprising the heater for heating laying dusty material, and the power spreading device described in any one of claim 1-8.
10. the increasing material manufacture method of increasing material manufacturing equipment according to claim 9, is characterized in that, comprise the following steps:
Step one: on the surface adopting the pressure Powder spreader with certain angle of inclination dusty material to be coated in carrier or on the layer of final curing, and adopting vibrational system to carry out vibrating compacting to the dusty material applied, heater heats in the laying of dusty material;
Step 2: when the temperature of dusty material reaches sintering temperature, is cured the dusty material completed by laser or other energy source on the layer position corresponding to the cross section of three-dimensional body;
Repeat step one and step 2, until three-dimensional body completes.
11. increasing material manufacture methods according to claim 10, is characterized in that, carry out vibrating compacting by vibrational system to the dusty material applied, make dusty material plastic deformation.
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