CN109878077A - Increasing material manufacturing equipment and increasing material manufacturing method - Google Patents
Increasing material manufacturing equipment and increasing material manufacturing method Download PDFInfo
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- CN109878077A CN109878077A CN201910140677.8A CN201910140677A CN109878077A CN 109878077 A CN109878077 A CN 109878077A CN 201910140677 A CN201910140677 A CN 201910140677A CN 109878077 A CN109878077 A CN 109878077A
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Abstract
The present invention relates to a kind of increasing material manufacturing equipment and increasing material manufacturing method, increasing material manufacturing equipment includes: bogey；Scanning means is located at the bogey side, for sending laser beam to printed material；Wherein, scanning means moves back and forth in a first direction with respect to bogey, and the mirror unit gone out on light path including being located at laser beam；Mirror unit can be rotated around central axis along a direction, changed laser beam and be irradiated in position of the target spot on printed material in the second direction intersected with first direction.So, the increasing material manufacturing equipment is by scanning means relative to the mobile achievable laser beam of bogey with respect to the uniform motion of bogey in a first direction, laser beam can be achieved by the rotation of mirror unit simultaneously and be irradiated in the quick movement of the target spot on printed material in a second direction, to form sintered surface on printed material, compared with the prior art, there is higher shaping efficiency and higher reliability.
Description
Technical field
The present invention relates to material increasing fields, more particularly to a kind of increasing material manufacturing equipment and increasing material manufacturing method.
Background technique
Increasing material manufacturing (Additive Manufacturing, AM) is commonly called as 3D printing, has merged CAD, material
Material processing with forming technique, based on digital model file, by software and digital control system by dedicated metal material, non-gold
Belong to material and biomaterial for medical purpose, is successively accumulated according to modes such as extruding, sintering, melting, photocuring, injections, produce reality
The manufacturing technology of body article.Relative to traditional, different to the cooked mode of raw material removal-cutting, assembling, increasing material manufacturing
The manufacturing method of a kind of " from bottom to top " by material addition so that the past by conventionally manufactured mode constraint and can not be real
Existing complex structural member manufacture becomes possible.
Wherein, selective laser sintering (Selective Laser Sintering, abbreviation SLS) be develop in recent years compared with
For one of rapid increases material manufacturing technology, Selective Laser Sintering is using dusty material as raw material, using laser to three-dimensional real
The section of body carries out successively scanning and completes raw basin.The basic process of SLS technique is: dust feeder by a certain amount of powder send to
One layer of dusty material is laid in the upper surface of molded part by work top, laying device, and powder is heated to by heating device
It is just below a certain temperature of the powder sintered point, galvanometer system controls laser beam according to the cross section profile of this layer to solid section
Powder bed is scanned, and the temperature of powder is made to rise to melting point, and powder fusing sintering is simultaneously realized viscous with following molded part
It connects；After a layer cross section has been sintered, workbench decline a layer thickness, powder-laying roller again layer overlay above uniformly densely
Powder carries out the scanning sintering of a new layer cross section, scans and be superimposed through several layers, until completing entire raw basin.
And above-mentioned Selective Laser Sintering, due to controlling the angle of emergence of laser by the two panels galvanometer in galvanometer system
It spends and the different location of dusty material is sintered, the structure by galvanometer system is limited, and shaping efficiency is lower, therefore significantly
Printing cost is improved, the extensive use of Selective Laser Sintering is unfavorable for.
Summary of the invention
Based on this, it is necessary to for the lower problem of the shaping efficiency of Selective Laser Sintering, provide a kind of molding
The higher increasing material manufacturing equipment of efficiency and increasing material manufacturing method.
A kind of increasing material manufacturing equipment, the increasing material manufacturing equipment include:
Bogey, for carrying printed material；
Scanning means is located at the bogey side, for sending laser beam to printed material；
Wherein, the relatively described bogey of the scanning means moves back and forth in a first direction, and described including being located at
The mirror unit of laser beam gone out on light path；
The mirror unit can be rotated around central axis along a direction, changed the laser beam and be irradiated on printed material
Position of the target spot in the second direction intersected with the first direction.
In this way, the increasing material manufacturing equipment carries dress relative to the mobile achievable laser beam of bogey by scanning means relatively
Uniform motion in a first direction is set, while laser beam can be achieved by the rotation of mirror unit and be irradiated on printed material
The quick movement of target spot in a second direction.Laser beam is set to be irradiated in printed material with the movement in second direction in a first direction
On target spot realize the molding in a face, to form sintered surface on printed material, compared with the prior art in use two
The galvanometer that only rotates within a certain angle realizes the mobile scheme of laser beam, has higher shaping efficiency and higher reliable
Property, reduce printing cost.
The scanning means further includes divergence unit, focusing unit and sharp for emitting in one of the embodiments,
The transmitting unit of light beam, the transmitting unit, the divergence unit, the mirror unit and the focusing unit swash along described
The light path that goes out of light beam is sequentially arranged.
What the printed material that the scanning means also can receive luminous point position in one of the embodiments, issued
Infrared beam, to obtain the temperature of the printed material of the luminous point position；
Wherein, on the current moving direction of the scanning means, at least a branch of infrared beam is located at the laser
The upstream of beam.
The scanning means includes divergence unit, focusing unit, for emitting laser beams in one of the embodiments,
Transmitting unit and receiving unit for receiving infrared light；The transmitting unit, the divergence unit, the mirror unit with
And the focusing unit is sequentially arranged along the light path that goes out of the laser beam, the receiving unit, the divergence unit, described turn
Mirror unit and the focusing unit are sequentially arranged along the light path that enters of the infrared beam.
The transmitting unit includes first transmitter for heating printed material and is used in one of the embodiments,
It is sintered the second transmitter of printed material, the receiving unit includes the first receiver for receiving the infrared beam；Institute
State second transmitter, the first transmitter and first receiver along the scanning means current moving direction sequentially
Arrangement；
The receiving unit further includes the second receiver for receiving the infrared beam, first receiver and institute
State the two sides that second receiver is located at the first transmitter Yu the second transmitter, and the second receiver, institute
State second transmitter, the first transmitter and first receiver along the scanning means current moving direction sequentially
Arrangement.
In one of the embodiments, the divergence unit include the first divergent mirror, the second divergent mirror, third divergent mirror with
And the 4th divergent mirror, the mirror unit include the first tilting mirror, the second tilting mirror, third tilting mirror and the 4th tilting mirror, the focusing
Mirror includes the first focus lamp, the second focus lamp, tertiary focusing mirror and the 4th focus lamp；
The institute that first divergent mirror, first tilting mirror and first focus lamp are issued along the first transmitter
The light path that goes out for stating laser beam sequentially arranges that second divergent mirror, second tilting mirror and second focus lamp are along institute
The light path that goes out for stating the laser beam of second transmitter sending sequentially arranges, tertiary focusing mirror, the third tilting mirror, described the
Three divergent mirrors sequentially arrange along the light path that enters of the received infrared beam of first receiver, the 4th focus lamp,
4th tilting mirror, the third divergent mirror enter light path sequentially cloth along the received infrared beam of the second receiver
It sets.
A kind of increasing material manufacturing method of increasing material manufacturing equipment, includes the following steps:
It along the translation of first direction and is synchronized around an axis along the rotation in a direction based on laser beam, realizes the laser beam
The printed material on the first direction is sintered in a second direction；Wherein, the first direction and the second direction
Intersection.
It along the translation of first direction and is synchronized in one of the embodiments, around an axis along one described based on laser beam
The rotation in direction, realize the step of laser beam is in a second direction sintered the printed material on the first direction it
Before, it further include following steps；
The infrared beam that the printed material of luminous point position issues is received, and obtains the luminous point position
The temperature of printed material；
According to the temperature of acquisition and the relationship of preset temperature, emit luminous point position described in laser beam heats
Printed material is to preset temperature.
It is described according to the temperature of acquisition and the relationship of preset temperature in one of the embodiments, emit laser beam
The step of heating printed material to the preset temperature of the luminous point position specifically includes the following steps:
Material temperature curve is generated according to the temperature of acquisition, according to the preset temperature of acquisition and the material temperature
It writes music line, emits the printed material of luminous point position described in the laser beam heats to preset temperature.
It in one of the embodiments, further include following steps；
The infrared beam issued by the printed material being sintered is received, and is shone according to strong and weak obtain of the infrared beam
The temperature of the printed material of point position simultaneously generates bath temperature curve.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of increasing material manufacturing equipment in one embodiment of the invention；
Fig. 2 is another structural schematic diagram in print procedure of increasing material manufacturing equipment shown in Fig. 1；
Fig. 3 is the another structural schematic diagram in print procedure of increasing material manufacturing equipment shown in Fig. 1；
Fig. 4 is the structural schematic diagram of increasing material manufacturing equipment in another embodiment of the present invention；
Fig. 5 is another structural schematic diagram in print procedure of increasing material manufacturing equipment shown in Fig. 4；
Fig. 6 is the another structural schematic diagram in print procedure of increasing material manufacturing equipment shown in Fig. 4；
Fig. 7 is the structural schematic diagram of the scanning means of increasing material manufacturing equipment shown in Fig. 1；
Fig. 8 is the top view of scanning means shown in Fig. 7；
Fig. 9 is the structural schematic diagram of increasing material manufacturing equipment in one embodiment of the invention；
Figure 10 is the structural schematic diagram of the scanning means of increasing material manufacturing equipment shown in Fig. 9；
Figure 11 is the flow chart of the increasing material manufacturing method of increasing material manufacturing equipment in one embodiment of the invention.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give presently preferred embodiments of the present invention.But the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more thorough
Comprehensively.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
As shown in Figure 1, a kind of increasing material manufacturing equipment 100 of the embodiment of the present invention, the increasing material manufacturing equipment 100 is using increasing
The mode shaped three dimensional printout of material manufacture.Specifically in the examples below that, which is laser three-D printing
Powdered printed material can be formed 3 D-printing part by laser sintered mode by machine, the laser three-D printer.
Specifically, increasing material manufacturing equipment 100 includes bogey, laying device 30 and scanning means 50.Bogey
For carrying printed material, laying device 30 is used to powdered printed material being layed in bogey or printed material
Sintered surface.Scanning means 50 is located at bogey side, and scanning means 50 is for sending laser beam to being located at beating for bogey
It prints on material, so that successively sintering printed material forms 3 D-printing part.
As shown in Figure 1-Figure 3, in some embodiments, bogey includes carrying cylinder 12, the first workbench 14, the second work
Make platform 16 and guide assembly.It carries cylinder 12 and is equipped with bearing cavity open at one end to accommodate printed material, scanning means 50 can be burnt
Printed material in knot carrying cylinder 12 forms printout, and the bottom wall of carrying cylinder 12 can be gone up and down in the vertical direction to drive printout
Relative scanning device 50 is gone up and down.First workbench 14 and the second workbench 16 are located at carrying 12 two sides of cylinder, and guide assembly is certainly
First workbench 14 extends to the second workbench 16, and scanning means 50 is mountable to guide assembly and along guide assembly in the first work
Make to move back and forth above platform 14, carrying cylinder 12 and the second workbench 16.Wherein, the extending direction of guide assembly is first party
To, therefore scanning means 50 moves back and forth in a first direction with respect to bogey.
Two laying devices 30 are respectively arranged on the two sides in the direction of movement of scanning means 50 and can follow scanning means 50
Synchronizing moving.Each laying device 30 includes the first powdering storehouse 32, the second powdering storehouse 34 and the first powdering storehouse 32 of connection and the
The interface channel 36 in two powdering storehouses 34, the second powdering storehouse 34 are open at one end far from the first powdering storehouse 32.It is set in interface channel 36
There are material-feeding rolling wheels 38, the lateral wall of material-feeding rolling wheels 38 offers feeding groove, and material-feeding rolling wheels 38 can rotate in interface channel 36
So that any one feeding groove is connected to the first powdering storehouse 32 or the second powdering storehouse 34.First powdering storehouse 32 is for accommodating powder
The printed material of shape, the printed material being contained in the first powdering storehouse 32 can fall into the second powdering by the material-feeding rolling wheels 38 of rotation
In storehouse 34.
When scanning means 50 and laying device 30 are located on the first workbench 14, it is located at the current movement side of scanning means 50
Material-feeding rolling wheels 38 rotate in upward laying device 30, and the printed material in the first powdering storehouse 32 falls into material-feeding rolling wheels 38 towards the
In the feeding groove of one powdering storehouse, 32 side, the rotation of the feeding groove of printed material with material-feeding rolling wheels 38 is loaded with towards the
Two powdering storehouses 34, therefore the printed material in feeding groove falls under gravity in the second powdering storehouse 34 and is piled up in first
On workbench 14.Stone when scanning means 50 is mobile relative to bogey, on the current moving direction of scanning means 50
Device 30 follows scanning means 50 to take the lead in being moved to 12 top of carrying cylinder, and the printed material in the second powdering storehouse 34 is in the second powdering
The upper surface of the printed material in carrying cylinder 12, and the side wall in the second powdering storehouse 34 are gradually covered under the promotion of the side wall in storehouse 34
The surface of printed material can be struck off to play the role of uniform powdering.Scanning means 50 follows after laying device 30 to being laid with
Printed material be sintered to form one layer of new sintered surface.Finally, the bottom wall of carrying cylinder 12 declines and forms new printing material
The laying space of material.
In the above-described embodiments, since the two sides on the moving direction of scanning means 50 are equipped with laying device 30,
Laying device during scanning means 50 is moved back and forth along guide assembly, on the current moving direction of scanning means 50
30 can complete powdering operation before scanning means 50 is sintered printed material, to provide printed material for scanning means 50.
As shown in Figure 4-Figure 6, in further embodiments, bogey include first carrying cylinder 21, second carry cylinder 23,
One auxiliary carrying platform 25 and guide assembly.First carrying cylinder 21 is equipped with the first bearing cavity open at one end to accommodate printing
The bottom wall of material, the first carrying cylinder 21 can be gone up and down in the vertical direction to drive printed material to go up and down.Second carrying cylinder 23 is equipped with
For second carrying cylinder 23 open at one end to accommodate printed material, scanning means 50 sinterable second carries the printed material in cylinder 23
Printout is formed, the bottom wall of the second carrying cylinder 23 can also be gone up and down in the vertical direction to drive 50 liters of printout relative scanning device
Drop.Bearing structure is assisted to be located at the second carrying cylinder 23 far from the first carrying 21 side of cylinder, auxiliary carrying platform 25 includes liftable
Assistance for lifting platform.Guide assembly carries cylinder 23 along the first carrying cylinder 21, second and assists the orientation of carrying platform 25
Extend, scanning means 50 can carry above cylinder 23 and auxiliary carrying platform 25 along guide assembly in the first carrying cylinder 21, second
It moves back and forth.Laying device 30 is integrated in the lateral wall that scanning means 50 forms scanning means 50.Wherein, the extension of guide assembly
Direction is first direction, therefore scanning means 50 moves back and forth in a first direction with respect to bogey.
In this way, laying device 30 can push when scanning means 50 moves above the first carrying cylinder 21 along first direction
The printed material on the first carrying 21 top of cylinder is moved to the second carrying cylinder 23, and gradually uniform fold carries in cylinder 23 in second
The upper surface of printed material, scanning means 50 can be sintered printed material to form new sintered surface.Second is not stacked in hold
The remaining printed material for carrying cylinder 23 is then pushed to the assistance for lifting platform of auxiliary carrying platform 25, assistance for lifting platform by laying device 30
To drive printed material to decline, the printed material that scanning means 50 is crossed in turn on auxiliary carrying platform 25 is moved to auxiliary for decline
Carrying platform 25 is far from the first accommodating chamber side.Then, assistance for lifting platform gos up, and the bottom wall of the second carrying cylinder 23 declines and drives
Printout decline, laying device 30 then push the printed material on assistance for lifting platform to be uniformly layed in beating in the second carrying cylinder 23
Print material and printout surface, scanning means 50 are sintered printed material to form new sintered surface in turn.
It is appreciated that the specific structure of bogey and laying device 30 is not limited to the above embodiments, can according to need
It is set as other structures.
As shown in Fig. 1, Fig. 7 and Fig. 8, in some embodiments, scanning means 50 includes control unit (not shown), diverging
Unit 52, focusing unit 54, mirror unit 53 and the transmitting unit 51 for emitting laser, transmitting unit 51, divergence unit
52, mirror unit 53 and focusing unit 54 are sequentially arranged along the light path that goes out of laser beam.
Specifically, transmitting unit 51 issues approximately parallel laser beam to divergence unit 52, divergence unit 52 as light source
By approximately parallel transforming laser be diffusion type laser beam after refracted to mirror unit 53.Mirror unit 53 can controlled
It is rotated along a direction so that laser beam reflection is on focusing unit 54 and relatively poly- under the control of unit processed around center axis
Burnt unit 54 moves back and forth, and focusing unit 54 can focus the laser beam to and form target spot on printed material.Due to mirror unit 53
It is rotated always along a direction around center axis, therefore changeable laser beam is irradiated in the target spot on printed material with first
Position in the second direction of direction intersection.
In this way, the increasing material manufacturing equipment 100 is opposite relative to the mobile achievable laser beam of bogey by scanning means 50
The uniform motion of bogey in a first direction, while laser beam can be achieved by the rotation of mirror unit 53 and be irradiated in printing
The quick movement of target spot in a second direction on material.It is irradiated in laser beam with the movement in second direction in a first direction
Target spot on printed material realizes the molding in a face, to form sintered surface on printed material, compared with the prior art in
Realize the mobile scheme of laser beams using two galvanometers only rotated within a certain angle, have higher shaping efficiency with it is higher
Reliability, reduce printing cost.
Specifically in an embodiment of the present invention, the X-direction in first direction Fig. 7, Fig. 8, in second direction Fig. 7, Fig. 8
Y-direction, and second direction is perpendicular to first direction.Transmitting unit 51, divergence unit 52, mirror unit 53 and focusing unit
54 direction the α arrangement in Fig. 8, the direction α and X-direction are at an angle.β side of the central axis of mirror unit 53 in Fig. 8
To extension, the direction β and X-direction are at an angle.In this way, since the opposite printed material of mirror unit 53 is transported in a first direction
It is dynamic, and the center axis thereof that mirror unit 53 extends around the direction β in Fig. 8, therefore focusing unit 54 focuses on printing material
Target spot on material is sintered printed material in a second direction.
Specifically in one embodiment, mirror unit 53 includes driving mechanism and tilting mirror main body, and tilting mirror main body is in prism-shaped knot
Structure, including multiple reflectings surface.The laser beam that divergence unit 52 issues exposes to wherein any one reflecting surface and is reflected onto poly-
Burnt unit 54.Driving mechanism transmission connection is in tilting mirror main body to drive tilting mirror main body around the center axis thereof of itself, Jin Ergai
Become the angle for the laser beam that each reflecting surface and transmitting unit 51 issue, therefore laser beam exposes to the drop point of focusing unit 54
It moves in the direction α of the relative focus unit 54 in Fig. 7.During rotation due to tilting mirror main body, each reflecting surface successively rotates
To going out on light path for laser beam, it is achieved that the fast reciprocating of laser beam is mobile, printing effect is significantly improved.Specifically exist
In the present embodiment, tilting mirror main body is hexa-prism structure, including six rectangular reflection faces interconnected.It is appreciated that tilting mirror
The shape of main body is without being limited thereto, can be set as needed as different shape.
Specifically in one embodiment, focusing unit 54 is convex lens and arc-shaped strip structure, focusing unit 54 are being held
α direction of the orthographic projection on the printed material set in Fig. 7 is carried to extend.In this way, the movement that mirror unit 53 reflects swashs
Light beam is radiated at always on focusing unit 54, improves the job stability of scanning means 50.
Printed material needs to be heated to before sintering certain temperature by external heating device, and (temperature is lower than printed material
Fusing point) be that the molding of printed material is prepared, but due to external heating device be difficult to carry out each position printed material it is equal
Even heating, therefore during layer-by-layer printing, printout is easy to happen the deformation such as warpage, and then reduces print quality.
Based on the above issues, as shown in FIG. 9 and 10, in some embodiments, scanning means 50 also can receive luminous point
The infrared beam that the printed material of position issues, to obtain the temperature of the printed material of luminous point position.Wherein, red
Outer light beam and laser beam are in the same plane, and on the current moving direction of scanning means 50, at least a branch of infrared light
Beam is located at the upstream of laser beam.That is, scanning means 50 can obtain the intensity of the infrared beam of printed material sending, in turn
Obtain issuing the temperature of the printed material of the infrared beam according to the intensity of infrared light.Later, laser beam can be according to printing material
The temperature of material is heated the case where to eliminate the non-uniform temperature of printed material to printed material.
Specifically in one embodiment, scanning means 50 include transmitting unit 51 for emitting laser beams, it is red for receiving
Receiving unit 55, divergence unit 52, mirror unit 53, focusing unit 54 and the control unit of outer light beam.Transmitting unit 51, hair
Throwaway member 52, mirror unit 53 and focusing unit 54 sequentially arrange that receiving unit 55, diverging are single along the light path that goes out of laser beam
Member 52, mirror unit 53 and focusing unit 54 are sequentially arranged along the light path that enters of infrared beam.
Further, transmitting unit 51 includes first transmitter 511 for heating printed material and for being sintered printing
The second transmitter 512 of material, receiving unit 55 include the first receiver 551 and second receiver for receiving infrared beam
552, second receiver 552, second transmitter 512, first transmitter 511 and the first receiver 551 are along scanning means 50
Current moving direction is sequentially arranged.In this way, when scanning means 50 is moved from left to right along first direction, the first receiver 551
The infrared beam that the printed material of luminous point position issues is received first, and first transmitter 511 is irradiated in printing material later
Target spot on material is overlapped and heats the printed material of the position with aforementioned luminous point, and then second transmitter 512 is irradiated
The printed material of the target spot position, the second last receiver are overlapped and are sintered with aforementioned target spot in the target spot on printed material
The infrared beam that 552 printed materials for obtaining aforementioned target spot position issue after being sintered, to complete on printed material
The molding of certain point.It is appreciated that the printed material of each position forms by the above process.
Since transmitting unit 51 and receiving unit 55 are symmetrical arranged, scanning means 50 it is mobile from left to right with from the right side
Toward achievable print procedure is moved left, first transmitter 512 and second transmitter 522 can be by changing the laser beam issued
The switching of intensity flexible in size.
Divergence unit 52 includes the first divergent mirror 521, the second divergent mirror 522, third divergent mirror 523 and the 4th divergent mirror
524, mirror unit 53 includes the first tilting mirror 531, the second tilting mirror 532, third tilting mirror 533 and the 4th tilting mirror 534, focusing unit
54 include the first focus lamp 541, the second focus lamp 542, tertiary focusing mirror 543 and the 4th focus lamp 544.Wherein, the first hair
The laser beam that scattered mirror 521, the first tilting mirror 531 and the first focus lamp 641 are issued along first transmitter 511 goes out light path sequentially
Arrangement.The laser beam that second divergent mirror 522, the second tilting mirror 532 and the second focus lamp 542 are issued along second transmitter 512
Light path is sequentially arranged out.Tertiary focusing mirror 543, third tilting mirror 533 and third divergent mirror 523 connect along the first receiver 551
The light path that enters of the infrared beam of receipts sequentially arranges that the 4th focus lamp 544, the 4th tilting mirror 534 and third divergent mirror 52 are along institute
The light path that enters for stating the received infrared beam of second receiver is sequentially arranged.Wherein, the first tilting mirror 531, the second tilting mirror 532,
The geomery of three tilting mirrors 533 and the 4th tilting mirror 534 is identical, in the central axis of the first tilting mirror 531, the second tilting mirror 532
The central axis of mandrel line, the central axis of third tilting mirror 533 and the 4th tilting mirror 534 is parallel to each other, the first tilting mirror 531,
Two tilting mirrors 532, third tilting mirror 533 and the 4th tilting mirror 534 are rotated synchronously rotating around center axis along a direction.
In this way, scanning means 50 can be transmitted on two beam laser beams to the printed material of bogey and receive two beams by printing
The infrared light that material issues, two beam laser beams are along the moving direction equidistant arrangement of scanning means 50, and two beam infrared beams are along scanning
The moving direction of device 50 is located at two beam laser beam two sides.In this way, scanning means 50 along first direction from left to right and
In the reciprocating movement of right-to-left, the temperature of printed material to be sintered can be obtained by infrared beam first, then
The temperature of the printed material of each position is eliminated by temperature to the preset temperature of wherein one laser beam raising printed material
Non-uniform phenomenon is sintered printed material by another one laser beam later, beats finally by what infrared beam acquisition had been sintered
Print the temperature of material.Therefore, scanning means 50 in a first direction right-to-left and from left to right move during, can fight each other
Print material successively carries out detection temperature, heating, sintering and monitoring temperature, thus while improving the efficiency of increasing material manufacturing,
The Forming Quality for improving printout, avoids printout that the deformation such as warpage occur because of non-uniform temperature.
As shown in figure 11, the increasing material manufacturing method of a kind of increasing material manufacturing equipment 100 of the embodiment of the present invention, including it is as follows
Step:
S110: it along the translation of first direction and is synchronized around an axis along the rotation in a direction based on laser beam, realizes laser
Beam is in a second direction sintered the printed material on first direction；
Wherein, first direction intersects with second direction.
Specifically, scanning means 50 can be with respect to bogey in a first direction from left to right or right-to-left back and forth moves
It is dynamic.The transmitting unit 51 of scanning means 50 is optionally opened and closed under the control of the control unit, when transmitting unit 51 is in unlatching
When state, in the laser beam of divergent shape to divergence unit 52, the laser beam of diverging is transformed in parallel by divergence unit 52 for transmitting
Laser beam and refract to mirror unit 53, then reflex to focusing unit 54 by mirror unit 53, focusing unit 54 is to swashing
Light beam makes it be radiated at one small light spot (i.e. target spot) of formation on printed material after being focused.It is held since scanning means 50 is opposite
It carries and sets while move in a first direction, mirror unit 53 is rotated around central axis along a direction, therefore changeable is swashed
Light beam is irradiated in position of the target spot on printed material in the second direction intersected with first direction, realizes laser beam along second
Direction carries out selective sintering to the printed material on first direction, to form a complete sintered surface.
In some embodiments, further comprising the steps of before step S110:
S101: the infrared beam that the printed material of luminous point position issues is received, and obtains luminous point position
Printed material temperature.
Specifically, the infrared beam of the emission on printed material is focused unit 54 and refracts to mirror unit 53,
Mirror unit 53 is refracted to divergence unit 52, and then refracts to receiving unit 55, receiving unit 55 by divergence unit 52
According to the temperature of the printed material of the intensity acquiring size luminous point position of infrared beam, and intensity size and temperature are in just
Than.Since the movement in a first direction of scanning means 50 and mirror unit 53 are constantly rotated around own axes along a direction, because
This receiving unit 55 can constantly obtain the infrared beam that the printed material of different luminous point positions issues, to be printed
The temperature of each position of material.
S102: according to the relationship of the temperature of acquisition and preset temperature, emit beating for laser beam heats luminous point position
Material is printed to preset temperature.
Specifically, the temperature of the printed material of the luminous point position when aforementioned sending infrared beam to receiving unit 55
When lower than preset temperature, transmitting unit 51 emits the printing material that laser beam heats are located at the lower luminous point position of the temperature
Material is to preset temperature, to ensure that higher beat situations such as making the temperature of printed material everywhere uniformly without warpage
Print precision.Moreover, the laser beam that transmitting unit 51 issues is adjusted in control unit according to the size of the difference of temperature and preset temperature
Intensity size, difference is bigger, transmitting unit 51 issue laser beam intensity it is also bigger, to make luminous point position
Printed material has bigger increasing extent of temperature to reach preset temperature.If the temperature etc. of the printed material of luminous point position
In preset temperature, then without being heated to the printed material of the luminous point position.
Further, step S102 specifically includes the following steps:
Material temperature curve is generated according to the temperature of acquisition, according to the preset temperature of acquisition and material temperature curve, transmitting
The printed material of laser beam heats luminous point position is to preset temperature.
Specifically, the temperature of the printed material of the luminous point position obtained according to receiving unit 55 and the acquisition temperature
Time, control unit produces a strip material temperature curve, and the abscissa of temperature curve is the time, and ordinate is printed material
Temperature.
Due to scanning means 50 uniform motion and the distance between transmitting unit 51 and receiving unit 55 in a first direction
It is fixed, therefore receiving unit 55 receives time and the transmitting of the infrared beam of the printed material sending of a certain luminous point position
The time that unit 51 emits laser beam to same luminous point has regular hour difference.Therefore, control unit can be based on being somebody's turn to do
Time difference emits according to material temperature curve and preset temperature control transmitting unit 51 to the printing material of luminous point position
The intensity of the laser beam of material to carry out selective heating to the portion of printed material, and then is being sintered printed material
Reach preset temperature before, printout is avoided to influence printing precision since warpage occurs in temperature unevenness.
In some embodiments, the increasing material manufacturing method of above-mentioned increasing material manufacturing equipment 100 further includes following steps；
S120: the infrared beam issued by the printed material being sintered is received, and hair is obtained according to the strong and weak of infrared beam
The temperature of the printed material of luminous point position and generate bath temperature curve out.
Wherein, the abscissa of bath temperature curve is the time, and ordinate is the temperature of printed material.Specifically, it is scanning
Device 50 is during the bogey movement in a first direction, the burning of the luminous point position on printed material
The infrared beam that the printed material of knot issues is focused unit and refracts to mirror unit 53, and mirror unit 53 is refracted to diverging
Unit 52, and then refract to receiving unit by divergence unit 52, receiving unit 55 is according to the intensity acquiring size of infrared beam
The temperature of the printed material of luminous point position, and intensity size and temperature are proportional.Since scanning means 50 is in first party
It moves up and mirror unit 53 is constantly rotated around own axes along a direction, therefore receiving unit 55 can constantly obtain different hairs
The infrared ray that the printed material of luminous point position issues, to obtain the temperature of the printed material of these luminous point positions
Degree.
Below there is the first transmitter 511 of heating printed material and the second transmitter for being sintered printed material
512, for the increasing material manufacturing equipment 100 with the first receiver 551 and second receiver 552 for receiving infrared beam,
The course of work of scanning means 50 is described.
Firstly, being moved relative to bogey along first direction right-to-left in scanning means 50, third tilting mirror 533 is around itself
Axis is during the rotation in a direction, infrared beam that the printed material of the luminous point position on printed material issues
It is received by tertiary focusing mirror 543, third tilting mirror 533 and third divergent mirror 523 by the first receiver 551, the first receiver
551 obtain the temperature of the printed material of luminous point position according to the intensity of infrared beam.Control unit obtains each shine
The time that the temperature of the printed material of point position and the first receiver 551 obtain above-mentioned temperature generates with the time as horizontal seat
It marks, using temperature value as the material temperature curve of ordinate.
With the movement of scanning means 50 in a first direction and mirror unit 53 around own axes along the rotation in a direction,
First transmitter 511 issues laser beam and exposes to it by the first divergent mirror 521, the first tilting mirror 531 and the first focus lamp 541
On the printed material of the preceding luminous point position for issuing infrared beam, control unit is sent out according to material temperature curve controlled first
The opening and closing of emitter 511 and the intensity of laser beam to heat the printing lower position of material temperature, and then make to print
The temperature of material everywhere is uniform, avoid printed material forming process due to temperature is uneven and warpage and seriously affect printing matter
Amount.
With continuing to move to for scanning means 50 and continuing to rotate for mirror unit 53, second transmitter 512 issues laser
Beam issues shining for infrared beam before being incident upon by the second divergent mirror 522, the second tilting mirror 532 and the second focus lamp according to 542
The printed material of position is put to be sintered the printed material of the position.In the process, controllable second transmitting of control unit
Device 512 is opened and closed to control the position of sintering.
Finally, with continuing to move to for scanning means 50 and continuing to rotate for mirror unit 53, the sintering of printed material
The infrared beam of sending of position connect by second by the 4th focus lamp 544, the 4th tilting mirror 534 and the 4th divergent mirror 524
It receives device 552 to receive, second receiver 552 obtains the temperature of the printed material of sintered molten bath zone according to the intensity of infrared beam
Degree.
Above-mentioned increasing material manufacturing equipment 100, due to the setting of rotatable mirror unit 53, printing effect with higher with
Print stability.Moreover, can the temperature to printed material carry out detection and heating in time, it is uneven to avoid printed material temperature
Situation effectively improves the matter of printout to prevent printout since the deformation such as warpage occurs in the temperature unevenness of printed material
Amount, improves the accuracy of manufacture of printout, is conducive to increasing material manufacturing equipment 100 and is more widely applied.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of increasing material manufacturing equipment, which is characterized in that the increasing material manufacturing equipment includes:
Bogey, for carrying printed material；
Scanning means is located at the bogey side, for sending laser beam to printed material；
Wherein, the relatively described bogey of the scanning means moves back and forth in a first direction, and including being located at the laser
The mirror unit of beam gone out on light path；
The mirror unit can be rotated around central axis along a direction, change the target that the laser beam is irradiated on printed material
Position of the point in the second direction intersected with the first direction.
2. increasing material manufacturing equipment according to claim 1, which is characterized in that the scanning means further include divergence unit,
Focusing unit and transmitting unit for emitting laser beams, the transmitting unit, the divergence unit, the mirror unit with
And the focusing unit is sequentially arranged along the light path that goes out of the laser beam.
3. increasing material manufacturing equipment according to claim 1, which is characterized in that the scanning means also can receive luminous point institute
The infrared beam that printed material in position issues, to obtain the temperature of the printed material of the luminous point position；
Wherein, on the current moving direction of the scanning means, at least a branch of infrared beam is located at the laser beam
Upstream.
4. increasing material manufacturing equipment according to claim 3, which is characterized in that the scanning means includes divergence unit, gathers
Burnt unit, transmitting unit for emitting laser beams and the receiving unit for receiving infrared light；It is the transmitting unit, described
Divergence unit, the mirror unit and the focusing unit along the laser beam go out light path sequentially arrange, the reception
Unit, the divergence unit, the mirror unit and the focusing unit enter light path sequentially cloth along the infrared beam
It sets.
5. increasing material manufacturing equipment according to claim 4, which is characterized in that the transmitting unit includes for heating printing
The first transmitter of material and second transmitter for being sintered printed material, the receiving unit includes described red for receiving
First receiver of outer light beam；The second transmitter, the first transmitter and first receiver are along the scanning
The current moving direction of device is sequentially arranged；
The receiving unit includes the second receiver for receiving the infrared beam, first receiver and described second
Receiver is located at the two sides of the first transmitter Yu the second transmitter, and the second receiver, described second
Transmitter, the first transmitter and first receiver are sequentially arranged along the current moving direction of the scanning means.
6. increasing material manufacturing equipment according to claim 5, which is characterized in that the divergence unit include the first divergent mirror,
Second divergent mirror, third divergent mirror and the 4th divergent mirror, the mirror unit include the first tilting mirror, the second tilting mirror, third turn
Mirror and the 4th tilting mirror, the focus lamp include the first focus lamp, the second focus lamp, tertiary focusing mirror and the 4th focus lamp；
First divergent mirror, first tilting mirror and first focus lamp issue described sharp along the first transmitter
The light path that goes out of light beam sequentially arranges that second divergent mirror, second tilting mirror and second focus lamp are along described the
The light path that goes out for the laser beam that two transmitters issue sequentially arranges that tertiary focusing mirror, the third tilting mirror, the third are sent out
Mirror is dissipated sequentially to arrange along the light path that enters of the received infrared beam of first receiver, it is the 4th focus lamp, described
4th tilting mirror, the third divergent mirror are sequentially arranged along the light path that enters of the received infrared beam of the second receiver.
7. a kind of increasing material manufacturing method of increasing material manufacturing equipment as claimed in any one of claims 1 to 6, which is characterized in that packet
Include following steps:
Based on laser beam along the translation of first direction and it is synchronous around an axis along the rotation in a direction, realize the laser beam along the
Two directions are sintered the printed material on the first direction；Wherein, the first direction intersects with the second direction.
8. the increasing material manufacturing method of increasing material manufacturing equipment according to claim 7, which is characterized in that be based on laser described
Beam along first direction translation and it is synchronous around an axis along the rotation in a direction, realize the laser beam in a second direction to described
It further include following steps before the step of printed material on first direction is sintered；
The infrared beam that the printed material of luminous point position issues is received, and obtains the printing of the luminous point position
The temperature of material；
According to the temperature of acquisition and the relationship of preset temperature, emit the printing of luminous point position described in laser beam heats
Material is to preset temperature.
9. the increasing material manufacturing method of increasing material manufacturing equipment according to claim 8, which is characterized in that described according to acquisition
The relationship of the temperature and preset temperature emits the printed material of luminous point position described in laser beam heats to preset temperature
The step of specifically includes the following steps:
Material temperature curve is generated according to the temperature of acquisition, it is bent according to the preset temperature of acquisition and the material temperature
Line emits the printed material of luminous point position described in the laser beam heats to preset temperature.
10. the increasing material manufacturing method of increasing material manufacturing equipment according to claim 8, which is characterized in that further include walking as follows
Suddenly；
The infrared beam issued by the printed material being sintered is received, and luminous point institute is obtained according to the strong and weak of the infrared beam
The printed material of position temperature and generate bath temperature curve.
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