CN106964776B - Cylindrical 3D printing equipment and 3D printer - Google Patents
Cylindrical 3D printing equipment and 3D printer Download PDFInfo
- Publication number
- CN106964776B CN106964776B CN201710327054.2A CN201710327054A CN106964776B CN 106964776 B CN106964776 B CN 106964776B CN 201710327054 A CN201710327054 A CN 201710327054A CN 106964776 B CN106964776 B CN 106964776B
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- powder
- powdering
- operation post
- flat
- cylindrical
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/70—Recycling
- B22F10/73—Recycling of powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/22—Driving means
- B22F12/226—Driving means for rotary motion
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The present invention relates to selective lasers to melt metal 3D printing technique field, more particularly, to a kind of cylindrical 3D printing equipment and 3D printer.Cylindrical 3D printing equipment includes: powder supplies system and building molding machine；Building molding machine includes the operation post in circular ring shape；Powder supplies system includes power spreading device and dust feeder；Power spreading device includes powdering part and powdering drive mechanism；Powdering part is rounded；The diameter of powdering part can change；Dust feeder includes powder feeding cylinder；The ring-shaped section and ring-shaped of powder feeding cylinder；Powder feeding cylinder is disposed around outside operation post.Operation post is set as circular ring shape, metal powder on operation post forms the work surface of circular ring shape, the diameter of operation post can be arranged in user according to the diameter of shaped component, solve the problems, such as that compact dimensions are limited, the plastic larger-diameter hollow cylinder component of size, is especially capable of the hollow cylinder figure component of forming diameter 2m or bigger.
Description
Technical field
The present invention relates to selective lasers to melt metal 3D printing technique field, more particularly, to a kind of cylindrical 3D printing
Equipment and 3D printer.
Background technique
Increasing material manufacturing 3D printing technique be one kind based on digital model file (CAD), with powdery metal, PVC,
Resin, fiber and other material are led to by the modes such as fusion sediment, laser sintered, selective laser fusing, laser curing, laser melting coating
It crosses special-purpose software and shaped object is constructed to CAD 3D figure, carry out slice dimensionality reduction, then press piece successively prints the height of construction object
Manufacturing technology is held, is the emerging technology rapidly developed in manufacturing industry, in Britain " economist " magazine " third time work
Industry revolution " it is referred to as the one of the important signs that of the third time industrial revolution in a text.
The powder supplies system of fusing 3D printer in selective laser in the prior art and building room and work-room are one
The box body design of bodyization, does not have extensional mode main platform.Building interior is provided with piston and piston plate, and activity is put on piston plate
Operation substrate is set, when piston plate pushes operation substrate to be raised up to and the poor metal powder layer operation face thickness in work-room bottom
When, the metal powder layer of an operation face thickness is paved by powder feeder unit, that is, work surface is formed, then by being mounted on 3D printer
The laser system at top by the metal powder layer on laser galvanometer reflection laser light beam to current work face, and passes through control
Adjusting of the system to laser galvanometer deflection angle melts current metal powder layer by the form selective of current layer slice figure,
To complete the processing operation to constituting parts current layer.After completing the powder bed operation of current slice patterned metal, under workbench
The height of one default layer drops, and powder supplies system is laid with the metal powder of a default thickness degree to workbench again, then again
Selective melting is carried out by current layer slice areal shape by laser system, according to said method reprocessabilty, be layering operation, most
Complete shaped component is obtained eventually.It is current material increasing field using a kind of more metal 3D printing technique, which can
Manufacture complicated shape metal parts, molded part mechanical property is good, precision is high, consistency up to conventional metallurgical be made part 99% with
On, there is important application in fields such as medical treatment, aerospace, military project, Construction of Nuclear Electricity, research and development of products.
But metal powder bed in the prior art selective laser melting process 3D printer, it is all the box machine of integration
The design of volume morphing equips setting for pattern without the form and circle of round work surface without the design of extensional mode main platform
Meter, when forming hollow cylindrical component, the metal powder on workbench is all the work surface that is square, and face area
Length and width all in 600mm × 600mm hereinafter, the hollow cylinder component of larger size diameter can not be formed, can not yet by laser beam
By circular trace selective melting metal powder layer, the hollow cylinder that building forming diameter is more than 2m is equipped using the technology
Figure component worldwide still belongs to blank.
Summary of the invention
The purpose of the present invention is to provide a kind of cylindrical 3D printing equipment and 3D printers, to solve in the prior art
Existing work top is all the design that is square, and shaped component size is limited, can not form the hollow cylinder of larger size diameter
The technical issues of bodily form component.
A kind of cylindrical 3D printing equipment provided by the invention, the cylindrical 3D printing equipment include: that powder supplies
Answer system and building molding machine；The building molding machine includes the operation post in circular ring shape；The powder supplies system
Including power spreading device and dust feeder；Stating power spreading device includes powdering part and powdering drive mechanism；The powdering part is rounded；Institute
The diameter for stating powdering part can change；
The dust feeder includes powder feeding cylinder；The ring-shaped section and ring-shaped of the powder feeding cylinder；The powder feeding cylinder is disposed around the work
Outside industry platform；The powdering drive mechanism is connect with the powdering part, for driving the powdering part in the top of the operation post
It moves back and forth, the metal powder in the powder feeding cylinder is laid on the operation post；The powdering drive mechanism be used for
The control system of 3D printer is electrically connected.
Further, the building molding machine includes the collection powder cylinder that section is in circular ring shape；The operation post is disposed around institute
It states outside collection powder cylinder.
Further, the powdering part includes multiple arc-shaped powdering plates；Multiple powdering plates are in turn connected to form
The powdering part；The outer wall of one end of each powdering plate is abutted with the inner wall of the adjacent powdering plate, the other end it is interior
Wall is abutted with the outer wall of the adjacent powdering plate；The powdering drive mechanism includes multiple drivers；Multiple drivers
It connects one to one with multiple powdering plates.
Further, the cylindrical 3D printing equipment further includes flat powder device；The flat powder device include flat powder part,
Fixing piece and flat powder part driving mechanism；The flat powder part is slidably connected with the fixing piece；The flat powder part driving mechanism with
The flat powder part connection, for driving the flat powder part to move in a circle above the operation post, by the operation post
On metal powder smooth out.
Further, the section of the fixing piece is rounded；The collection powder cylinder is disposed around outside the fixing piece；The flat powder
One end of part is slidably connected with the fixing piece, and the other end is towards the operation post.
Further, the flat powder part is flat painting；Powder feeding cylinder described in one end covering part of the flat painting.
Further, described flat one end connecting with the flat powder part driving mechanism of painting has bending.
Further, the flat powder part driving mechanism includes mobile motor, driving structure and moving member；The moving member
It is slidably connected with the fixing piece；The flat painting is rotatablely connected with the moving member；The mobile motor and the moving member
Connection, for driving the moving member circumference mobile；The driving structure is arranged on the moving member, the driving structure with
The flat painting connection, for driving the flat painting to rotate relative to the moving member, so that the flat painting is from the operation
It is removed above platform.
Further, the building molding machine includes the building room for constructing room piston, main platform and ring-shaped section and ring-shaped；
The installing port in circular ring shape is provided on the main platform；The operation post setting is indoor in the building, and is located at described
At installing port；The building room piston is connect with the operation post, for driving the operation post to move up and down.
Further, the present invention also provides a kind of 3D printer, the 3D printer includes control system and such as this hair
The bright cylindrical 3D printing equipment；The powdering drive mechanism is electrically connected with the control system.
Cylindrical 3D printing equipment provided by the invention, including powder supplies system and building molding machine, are built into
Type device includes the operation post in circular ring shape, and powder supplies system includes power spreading device and dust feeder, and power spreading device includes paving
Powder part and powdering drive mechanism.When in use, powdering drive mechanism driving powdering part is moved back and forth in the top of operation post,
That is, the radial direction along operation post moves back and forth, the metal powder in powder feeding cylinder is pushed on operation post, thus by metal powder
It is laid on operation post.Then the selective laser melting mechanism of 3D printer is by the metal powder selective melting on operation post, most
Final shaping unit component.
Cylindrical 3D printing equipment provided by the invention, operation post are set as circular ring shape, the metal powder on operation post
Form the work surface of circular ring shape, the dress that user can select operation post diameter dimension suitable according to the diameter of shaped component
It is standby, solve the problems, such as that compact dimensions are limited, the plastic larger-diameter hollow cylinder component of size can especially form
Diameter is more than the hollow cylinder figure component of 2m.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of cylindrical 3D printing provided in an embodiment of the present invention equipment；
Fig. 2 is that partial enlarged view is equipped in cylindrical 3D printing shown in FIG. 1；
Fig. 3 is that another partial enlarged view is equipped in cylindrical 3D printing shown in FIG. 1；
Fig. 4 is another structural schematic diagram of cylindrical 3D printing provided in an embodiment of the present invention equipment；
Fig. 5 is the another structural schematic diagram of cylindrical 3D printing provided in an embodiment of the present invention equipment；
Fig. 6 is the structural schematic diagram of flat powder part in cylindrical 3D printing provided in an embodiment of the present invention equipment.
Appended drawing reference:
1- power spreading device；11- powdering part；12- powdering drive mechanism；121- driver；111- powdering plate；2- powder feeding dress
It sets；21- powder feeding cylinder；22- collection powder cylinder；The flat powder device of 3-；31- fixing piece；The flat powder part of 32-；4- operation post；5- main platform；6-
3D printer work-room；7- constructs room；8- constructs room piston；9- lift in height mechanism；10- mobile mechanism；101- mobile motor；
102- movable pulley；41- substrate；42- constructs room piston plate.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Fig. 1 is the structural schematic diagram of cylindrical 3D printing provided in an embodiment of the present invention equipment；As shown in Figure 1, this hair
A kind of cylindrical 3D printing equipment that bright embodiment provides, cylindrical 3D printing equipment include: powder supplies system with
And building molding machine；Building molding machine includes the operation post 4 in circular ring shape；Powder supplies system includes 1 He of power spreading device
Dust feeder 2；Power spreading device 1 includes powdering part 11 and powdering drive mechanism 12；Powdering part 11 is rounded；The diameter of powdering part 11
It can change；Dust feeder 2 includes powder feeding cylinder 21；The ring-shaped section and ring-shaped of powder feeding cylinder 21；Powder feeding cylinder 21 is disposed around outside operation post 4；
Powdering drive mechanism 12 is connect with powdering part 11, for driving powdering part 11 to move back and forth in the top of operation post 4, by powder feeding
Metal powder in cylinder 21 is laid on operation post 4；Powdering drive mechanism 12 with the control system of 3D printer for being electrically connected.
Cylindrical 3D printing equipment provided in an embodiment of the present invention, including powder supplies system and building molding machine,
Building molding machine includes the operation post 4 in circular ring shape, and powder supplies system includes power spreading device 1 and dust feeder 2, powdering dress
Setting 1 includes powdering part 11 and powdering drive mechanism 12.When in use, powdering drive mechanism 12 drives powdering part 11 in operation post 4
Top move back and forth, that is, along operation post 4 radial direction move back and forth, the metal powder in powder feeding cylinder 21 is pushed into work
On industry platform 4, so that metal powder is laid on operation post 4.Then the selective laser melting mechanism of 3D printer will be on operation post 4
Metal powder selective melting, final molding component.
Cylindrical 3D printing provided in an embodiment of the present invention equipment, operation post 4 are set as circular ring shape, on operation post 4
Metal powder forms the work surface of circular ring shape, and user can select the diameter of operation post 4, solution according to the diameter of shaped component
The limited problem of compact dimensions of having determined, the plastic larger-diameter hollow cylinder component of size, especially being capable of forming diameter
Hollow cylinder figure component more than 2m.
Wherein, the structure type of powdering part 11 can be a variety of, for example, the material of powdering part 11 is elastic material, such as
Rubber etc., when powdering drive mechanism 12 drives powdering part 11 mobile to the center of operation post 4, powdering part 11 is pressed while mobile
Contracting diameter gradually becomes smaller.When powdering drive mechanism 12 drives powdering part 11 mobile to the center far from operation post 4, powdering part 11 exists
Diameter is stretched while mobile to be gradually increased.
As shown in Figure 1, on the basis of the above embodiments, further, building molding machine includes section in circular ring shape
Collection powder cylinder 22；Operation post 4 is disposed around outside collection powder cylinder 22.
In the present embodiment, setting is in the collection powder cylinder 22 of circular ring shape in operation post 4, when powdering part 11 is into operation post 4
When the heart is moved to collection powder cylinder 22, extra metal powder is fallen into being collected in collection powder cylinder 22, to avoid on powdering part 11
Metal powder falls into outside.Meanwhile this arrangement reduce collection 22 volume of powder cylinder, the body of cylindrical 3D printing equipment is reduced
Product.
Fig. 2 is that partial enlarged view is equipped in cylindrical 3D printing shown in FIG. 1；Fig. 3 is that cylindrical 3D shown in FIG. 1 is beaten
Printing equipment is for another partial enlarged view；As shown in Figure 1 to Figure 3, on the basis of the above embodiments, further, powdering part 11 wraps
Include multiple arc-shaped powdering plates 111；Multiple powdering plates 111 are in turn connected to form powdering part 11；One end of each powdering plate 111
Outer wall abutted with the inner wall of adjacent powdering plate 111, the inner wall of the other end is abutted with the outer wall of adjacent powdering plate 111；Paving
Powder driving mechanism 12 includes multiple drivers 121；Multiple drivers 121 connect one to one with multiple powdering plates 111.
In the present embodiment, multiple powdering plates 111 are set by powdering part 11, each driver 121 connects a powdering plate
111.At work, when edge thereto heart movement of each driver 121 driving powdering plate 111 by operation post 4, Duo Gepu
Relative displacement is circumferentially generated between powder plate 111, so that the part that two neighboring powdering plate 111 is overlapped increases, powdering part 11
Diameter reduces, until being moved at collection powder cylinder 22, collection powder cylinder 22 collects metal powder extra in powdering plate 111.Then every
A driver 121 drives powdering plate 111 mobile to the edge of operation post 4, is back to origin-location, in the process of moving, more
Relative displacement is circumferentially generated again between a powdering plate 111, so that the part that two neighboring powdering plate 111 is overlapped reduces, paving
The diameter of powder part 11 increases, until being moved at powder feeding cylinder 21.It circuits sequentially, the gold of preset thickness will be laid on operation post 4
Belong to powder.
In the present embodiment, multiple powdering plates 111 are set by powdering part 11, each powdering plate 111 connects a driver
121, it is ensured that powdering part 11 is disposed around on operation post 4 with circular shape always, is made operation post 4 in circumferential direction while being laid with metal
Powder improves powdering efficiency.The structure of powdering plate 111 is simple, facilitates operation.
Wherein, driver 121 can be hydraulic cylinder, cylinder etc..
As shown in Figure 1, on the basis of the above embodiments, further, cylindrical 3D printing equipment further includes putting down
Powder device 3；Flat powder device 3 includes flat powder part 32, fixing piece 31 and flat powder part driving mechanism；Flat powder part 32 and fixing piece 31 are sliding
Dynamic connection；Flat powder part driving mechanism is connect with flat powder part 32, for driving flat powder part 32 to do circumference fortune in the top of operation post 4
It is dynamic, the metal powder on operation post 4 is smoothed out.
In the present embodiment, after powdering part 11 is by the metal powder for being laid with preset thickness on operation post 4, flat powder part driving machine
Structure drives the sliding of flat 32 opposed fixed member 31 of powder part, so that flat powder part 32 is in the top of operation post 4, that is, along the week of operation post 4
To moving in a circle, and the metal powder on operation post 4 is acted on, metal powder is smoothed out, so that on operation post 4
Metal powder layer is more smooth, so that selective laser melting mechanism is to the composition formed after metal powder layer selective melting
Part is more fine and standard.
Wherein, flat powder part 32 can be flat powder plate, flat powder agglomates, or flat painting.Preferably, flat powder part 32 is flat powder
Brush, flat painting is uniformly applied on metal powder layer, best so as to the effect that smoothes out metal powder layer.
As shown in Figure 1, on the basis of the above embodiments, further, the section of fixing piece 31 is rounded；Collect powder cylinder 22
It is disposed around outside fixing piece 31；One end of flat powder part 32 is slidably connected with fixing piece 31, and the other end is towards operation post 4.
In the present embodiment, the section of fixing piece 31 is provided in round, collection powder cylinder 22 is disposed around outside fixing piece 31, that is,
Powder feeding cylinder 21, operation post 4, collection powder cylinder 22 and fixing piece 31 are successively arranged, and structure is simple and compact.
Wherein, the structure type of flat powder part driving mechanism can be a variety of, for example, flat powder part driving mechanism includes flat powder electricity
Machine and turntable.The power output axis connection at the center of turntable and flat powder motor.One end of flat powder part 32 and the edge of turntable are fixed
Connection.Flat powder motor drives turntable rotation, center circumferential movement of the flat powder part 32 of driven by rotary disc along turntable.
Wherein, putting down and painting peaceful powder driving mechanism can be multiple, circumferential direction of multiple flat paintings along the fixing piece 31
Successively interval setting, multiple flat powder driving mechanisms connect one to one with multiple flat paintings.Multiple flat paintings are worked at the same time and can be mentioned
High flat powder efficiency.
As shown in Figure 1, on the basis of the above embodiments, further, flat powder part 32 is flat painting；One end of flat painting
Covering part powder feeding cylinder 21.
In the present embodiment, flat painting, and flat painting covering part powder feeding cylinder 21 are set by flat powder part 32, that is, flat powder
The length of brush is greater than the width of operation post 4.Flat painting when being moved on operation post 4, flat painting can abundant overwrite job platform 4, will
Metal powder on operation post 4 sufficiently smoothes out, and the edge of operation post 4 is avoided not to be applied to by flat painting and out-of-flatness occur
Situation.
On the basis of the above embodiments, further, flat powder part driving mechanism include mobile motor, driving structure and
Moving member；Moving member is slidably connected with fixing piece 31；Flat painting is rotatablely connected with moving member；Mobile motor 101 and moving member connect
It connects, for driving moving member circumference mobile；Driving structure is arranged on moving member, driving structure and flat painting connection, for driving
Dynamic flat painting relative movable parts rotation, so that flat painting is removed above operation post 4.
In the present embodiment, mobile motor 101 drives moving member circumference mobile, and moving member drives flat painting on operation post 4
Circular motion, to the metal powder on operation post 4 be smoothed out, at this point, flat painting is located at the top on operation post 4.Then it drives
Dynamic structure drives flat painting rotation, so that flat painting is removed above operation post 4, flat painting is avoided to influence selective laser fusing machine
Structure melts metal powder.
Wherein, moving member can be turntable as described above.Driving structure may include motor, driving gear and with master
The driven gear that moving gear is meshed.Motor is arranged on moving member, and driving gear is arranged on the power output shaft of motor, puts down
Painting is fixedly connected with driven gear.Motor drives driving gear rotation, and driving gear drives driven gear rotation, driven gear
Drive flat painting relative movable parts rotation.Preferably, in flat powder, the center of circle at the both ends and operation post 4 of putting down painting is located at same
On straight line, that is, on the extended line for the diameter that flat painting is located at operation post 4.After the completion of flat powder, 90 ° of painting rotation is put down, is folded
It packs up.
Fig. 6 is the structural schematic diagram of flat powder part in cylindrical 3D printing provided in an embodiment of the present invention equipment, such as Fig. 6 institute
Show, on the basis of the above embodiments, further, one end that flat painting is connect with flat powder part driving mechanism has bending.
In the present embodiment, bent is set by one end that flat painting connects flat powder part driving mechanism, that is, flat painting
The end is bent to side, when such setting can make flat painting relative movable parts rotation, can just be removed above operation post 4,
Facilitate selective laser melting mechanism to metal powder selective melting.
Preferably, bending angle is 45 °.
Fig. 4 is another structural schematic diagram of cylindrical 3D printing provided in an embodiment of the present invention equipment；Fig. 5 is the present invention
The another structural schematic diagram for the cylindrical 3D printing equipment that embodiment provides；As shown in Figures 1 to 5, in above-described embodiment
On the basis of, further, building molding machine includes the building room 7 for constructing room piston 8, main platform 5 and ring-shaped section and ring-shaped；It is main
The installing port in circular ring shape is provided on body platform 5；The setting of operation post 4 is located at installing port in building room 7；Construct room
Piston 8 is connect with operation post 4, for driving operation post 4 to move up and down.Dust feeder 2 further includes powder feeding piston plate and powder feeding
Piston, powder feeding piston plate are arranged in powder feeding cylinder 21, and powder feeding piston is connect with powder feeding piston plate, for driving powder feeding piston plate
Lower movement；For placing metal powder needed for operation on powder feeding piston plate.
In the present embodiment, powdering drive mechanism 12 drives powdering part 11 that the metal powder in powder feeding cylinder 21 is pushed to operation
On platform 4, so that metal powder is laid on operation post 4.Selective laser melting mechanism to the metal powder layer on operation post 4 into
Row selective melting, then, component room piston driving operation post 4 move down preset height, the powder feeding piston in powder feeding cylinder 21
Powder feeding piston plate is driven to move up, so that the metal powder movement on powder feeding piston plate rises to preset height, powdering part 11
It moves above operation post 4, again pushes to the metal powder in powder feeding cylinder 21 on operation post 4 again, selective laser fusing
Mechanism carries out selective melting to the metal powder layer on operation post 4 again.Then, operation post 4 declines again, powder feeding piston plate
Rise again, recycled with this, finally by the metal powder for the preset thickness being laid on operation post 4.
It further, further include mobile mechanism 10, mobile mechanism 10 connect with building room 7, for mobile building room 7；Structure
It builds room 7 and is removably secured with main platform 5 and is connect.When in use, the main platform 5 of building room 7 and 3D printer is detachable
Ground is fixedly connected, and after constructing the constituting parts molding in room 7, user removes room 7 is constructed from main platform 5, and is then led to
Crossing mobile mechanism 10 makes building room 7 be removed to predeterminated position from main platform 5, finally takes constituting parts out of building room 7
Out.In the present embodiment by mobile mechanism 10 by construct room 7 be moved to predeterminated position, then again by constituting parts from building room
It is taken out in 7, compared with the shaped component in the prior art from the taking-up of the top of work-room, convenient for users to taking out, saves manpower
And the time, improve pickup efficiency.
Wherein, the structure type of mobile mechanism 10 can be a variety of, for example, mobile mechanism 10 includes motor, gear, tooth
Item, sliding rail and the sliding block with sliding rail cooperation；Gear is arranged on the power output shaft of motor, and rack gear is fixedly connected with building room 7,
And rack and pinion engages.Sliding block is fixed on building room 7.Motor driven gear rotation, gear band carry-over bar is mobile, tooth
Item drives building room 7 to move along sliding rail.
On the basis of the above embodiments, further, mobile mechanism 10 includes movable pulley 102 and mobile motor 101；It moves
Driving wheel 102 and building room 7 are rotatablely connected, and mobile motor 101 is connect with movable pulley 102, for driving movable pulley 102 to rotate.
In the present embodiment, movable pulley 102 and mobile motor 101 are set by mobile mechanism 10, mobile motor 101, which drives, to be moved
Driving wheel 102 rotates, so that building room 7 is moved to predeterminated position.
In the present embodiment, the setting of movable pulley 102 can reduce building room 7 and ground while mobile building room 7
Frictional force, so that power needed for reducing mobile building room 7, reduces energy consumption, save resource.
Further, including lift in height mechanism 9, it is risen or fallen for making to construct room 7.It is mobile when needing that room 7 will be constructed
To 5 lower section of main platform, risen using lift in height mechanism 9 by room 7 is constructed, is consolidated building room 7 with main platform 5 with facilitating
It is fixed.After molding component, building room 7 is removed from main platform 5, is then dropped using lift in height mechanism 9 by room 7 is constructed
It is low, building room 7 is removed from main platform 5 is lower with facilitating.
Further, cylindrical 3D printing main body equipment further includes the 3D printer work for being mounted on 5 top of main platform
Industry room 6；On 3D printer work-room 6, positioned at the top of installing port, it is provided with powder injection；It is provided at powder injection
It is used to open or closes the note powder switch of note powder mouth；Building molding machine is mounted on the lower section of main platform 5；Powder supplies system
System is mounted on main platform 5.
In the present embodiment, main platform 5 is fixed on the ground, and powder supplies system is mounted on main platform 5, component at
Type device is mounted on the lower section of main platform 5, and 3D printer work-room 6 is mounted on the top of main platform 5.3D printer operation
Powder injection and note powder switch are set on the outer wall of room 6.User opens powder injection by note powder switch, then leads to
It crosses powder injection and injects metal powder into powder feeding cylinder 21, the metal powder in powder feeding cylinder 21 is laid on operation again by powdering cylinder
On platform 4.
Further, on 3D printer work-room 6, positioned at the top of installing port, be set as residual powder suction outlet and
It is used to open or closes the suction powder switch of residual powder suction outlet.
After molding component, user opens residual powder suction outlet by inhaling powder switch, passes through residual powder suction outlet
The residual powder in room 7 will be constructed to be sucked out, then remove building room 7 again, by building room 7 from 5 moved out from beneath of main platform, finally
Shaped component is taken out.
On the basis of the above embodiments, further, operation post 4 includes from top to bottom setting gradually in circular ring shape
Substrate 41 and building room piston plate 42；Building room piston plate 42 is connect with building room piston 8；41 width of substrate, which is respectively less than, to be constructed
The width of room piston plate 42；Construct room piston plate 42 width and installing port it is of same size.
In the present embodiment, the size of substrate 41 is less than building piston plate, and the size for constructing piston plate is equal to the ruler of installing port
It is very little, after the metal powder in powder feeding cylinder 21 is laid on substrate 41 by powder-laying roller, since 41 size of substrate is less than building piston
Plate, extra metal powder can slide downwards on building room piston plate 42, and the beneficial effect designed in this way is: in maximum operation
Face both formed safety work band together between 5 installing port of 41 area of substrate and main platform, and it is selectively molten to can avoid metal powder
Metallurgical connection occurs for shaped component and main platform 5 after change.
On the basis of the above embodiments, further, the embodiment of the present invention also provides a kind of 3D printer, the 3D printing
Machine includes that control system and cylindrical 3D printing such as of the invention are equipped；Powdering drive mechanism 12 is electrically connected with control system
It connects.The principle of cylindrical 3D printing equipment is same as above, and details are not described herein.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of cylindrical 3D printing equipment characterized by comprising powder supplies system and building molding machine；
The building molding machine includes the operation post in circular ring shape；
The powder supplies system includes power spreading device and dust feeder；
The power spreading device includes powdering part and powdering drive mechanism；The powdering part is rounded；The diameter energy of the powdering part
Enough variations；
The dust feeder includes powder feeding cylinder；The ring-shaped section and ring-shaped of the powder feeding cylinder；The powder feeding cylinder is disposed around the operation post
Outside；The powdering drive mechanism is connect with the powdering part, for driving the powdering part reciprocal in the top of the operation post
It is mobile, the metal powder in the powder feeding cylinder is laid on the operation post；
The powdering drive mechanism with the control system of 3D printer for being electrically connected.
2. cylindrical 3D printing equipment according to claim 1, which is characterized in that the building molding machine includes cutting
Face is in the collection powder cylinder of circular ring shape；
The operation post is disposed around outside the collection powder cylinder.
3. cylindrical 3D printing equipment according to claim 1, which is characterized in that the powdering part includes multiple in arc
The powdering plate of shape；
Multiple powdering plates are in turn connected to form the powdering part；The outer wall of one end of each powdering plate and adjacent institute
The inner wall for stating powdering plate abuts, and the inner wall of the other end is abutted with the outer wall of the adjacent powdering plate；
The powdering drive mechanism includes multiple drivers；Multiple drivers and multiple powdering plates correspond and connect
It connects.
4. cylindrical 3D printing equipment according to claim 2, which is characterized in that further include flat powder device；
The flat powder device includes flat powder part, fixing piece and flat powder part driving mechanism；
The flat powder part is slidably connected with the fixing piece；The flat powder part driving mechanism is connect with the flat powder part, for driving
It moves the flat powder part to move in a circle above the operation post, the metal powder on the operation post is smoothed out.
5. cylindrical 3D printing equipment according to claim 4, which is characterized in that the section of the fixing piece is in circle
Shape；
The collection powder cylinder is disposed around outside the fixing piece；One end of the flat powder part is slidably connected with the fixing piece, the other end
Towards the operation post.
6. cylindrical 3D printing equipment according to claim 5, which is characterized in that the flat powder part is flat painting；
Powder feeding cylinder described in one end covering part of the flat painting.
7. cylindrical 3D printing equipment according to claim 6, which is characterized in that the flat painting and the flat powder part
One end of driving mechanism connection has bending.
8. cylindrical 3D printing according to claim 6 equipment, which is characterized in that the flat powder part driving mechanism includes
Mobile motor, driving structure and moving member；
The moving member is slidably connected with the fixing piece；The flat painting is rotatablely connected with the moving member；The mobile electricity
Machine is connect with the moving member, for driving the moving member circumference mobile；
The driving structure is arranged on the moving member, and the driving structure and the flat painting connect, described for driving
Flat painting is rotated relative to the moving member, so that the flat painting is removed above the operation post.
9. cylindrical 3D printing equipment according to claim 1, which is characterized in that the building molding machine includes structure
Build the building room of room piston, main platform and ring-shaped section and ring-shaped；
The installing port in circular ring shape is provided on the main platform；The operation post setting is indoor in the building, and is located at
At the installing port；The building room piston is connect with the operation post, for driving the operation post to move up and down.
10. a kind of 3D printer, which is characterized in that including control system and such as the described in any item cylinders of claim 1-9
Bodily form 3D printing equipment；
The powdering drive mechanism is electrically connected with the control system.
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| CN201710327054.2A CN106964776B (en) | 2017-05-10 | 2017-05-10 | Cylindrical 3D printing equipment and 3D printer |
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| CN201710327054.2A CN106964776B (en) | 2017-05-10 | 2017-05-10 | Cylindrical 3D printing equipment and 3D printer |
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| CN106964776B true CN106964776B (en) | 2019-07-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107891145B (en) * | 2017-09-26 | 2020-08-14 | 芜湖天梦信息科技有限公司 | Powder feeding device in selective laser melting process |
| CN109551760B (en) | 2017-09-27 | 2021-01-22 | 东台精机股份有限公司 | Rolling type three-dimensional printing device and operation method thereof |
| WO2019061059A1 (en) * | 2017-09-27 | 2019-04-04 | 东台精机股份有限公司 | Rolling three-dimensional printing device and operation method therefor |
| WO2019094286A1 (en) * | 2017-11-08 | 2019-05-16 | General Electric Company | Omnidirectional recoater |
| CN107839228A (en) * | 2017-12-07 | 2018-03-27 | 窦鹤鸿 | A kind of powdering system and 3D printer |
| CN107891147B (en) * | 2017-12-14 | 2024-02-20 | 苏州倍丰智能科技有限公司 | Spreading member, continuous spreading mechanism and continuous powder deposition printing equipment |
| CN109514856B (en) * | 2018-10-30 | 2021-09-03 | 谢明仿 | Hopper type bidirectional double-roller powder spreading device for laser additive manufacturing |
| CN114833355B (en) * | 2022-05-27 | 2023-06-30 | 浙江机电职业技术学院 | Metal 3D printing equipment with automatic powder supplementing function |
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| CN106964776A (en) | 2017-07-21 |
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