3D printing equipment laying device and its stone method
Technical field
The invention belongs to 3D printing equipment technical fields, and in particular to 3D printing equipment laying device and its stone side
Method.
Background technology
Known existing a variety of increasing material manufacturing processes, using a plurality of types of 3D printing equipment, some of them increase material system
Making technique has following general steps:
(1)First, bulk material application is taped against in the whole surface of print area, forms one layer of uncured bulk material;
(2)Pass through selectively print processing agent(Such as binder)Selectively to cure granular material in predetermined portions region
The bed of material;
(3)Construction platform reduces the thickness of a corresponding layer, repeats step (1) and (2) to manufacture desired component;
(4)Finally, it takes out by the component of loose, uncured bulk material support package.
The laying device of 3D printing equipment(Also sanding gear or power spreading device are), it is generally used for above step(1)Work
Make, it is known to which a variety of available laying devices can be used for 3D printing equipment, and by these laying devices, granular structure material can be with
It is applied on print area in the form of conforming layer.But the laying device of the prior art, usually utilization scrape the upper and lower of patter and shake
Dynamic to pat the newly laid material layer of consolidation, for the method because of the discontinuity of mode of vibration, the surface of material layer is susceptible to step
The out-of-flatness of formula.Patter translation screeding and compaction also is scraped using inclined, but compacting effect is limited, the degree of packing is inadequate;Work as setting
When larger consolidation amount, it is susceptible to and pushes away sand problem.Meanwhile the opening and closing mode of the laying device feed opening of the prior art is without very
Good scheme, feasibility is insufficient, cannot implement.
Invention content
In view of the deficiencies of the prior art, the present invention provides 3D printing equipment laying device, using can close, size-adjustable
Feed opening, the roller brush reversely rotated using active put down pulverulent material layer, consolidation rolled using the roller that rotates in the forward direction
Pulverulent material layer, and ensure using variable height difference t the degree of packing of pulverulent material layer, it ensure that the consolidation of 3D printing product
Degree, while solving waste of material and environmental pollution caused by lower sand mouth can not close.
The technical solution adopted by the present invention is:
3D printing equipment laying device, for the dusty material of 3D printing to be applied in print job region, including:
The supporting beam of at least one entire laying device of support(1), the supporting beam is across print job region, carrying stone dress
It sets and is moved in print job region;
At least one storage bin(2), the storage bin is an elongated vessel across print area, is connected to supporting beam(1)
On;
Feeding device(3), it is mounted on storage bin(2)The dusty material of printing is transported in entire storage bin by the top of inner cavity,
Dusty material is set to be uniformly distributed in the length of storage bin;
At least one blanking chamber(4), the length of the blanking chamber can partly or entirely cover print job region, and with institute
State storage bin(2)Connection, blanking chamber lower part be equipped with length can partly or entirely cover print job region it is elongated under
Material mouth(41);
With rotating roller one(6), the rotating roller one is that length is more than or equal to the feed opening after one or more snippets is combined(4)Circle
Shape roller, the rotating roller one are arranged in the storage bin(2)Lower part, be arranged in the blanking chamber(4)Rear portion;The paving
When expecting device work, the rotating roller one(6)Rotation, the movement in the linear velocity direction and the laying device of the rotating roller one
Direction is identical or opposite;
And/or rotating roller two(7), the rotating roller two is that length is more than or equal to the feed opening after one or more snippets is combined(4)
Round roller, be arranged in the storage bin(2)Lower part, be arranged in the blanking chamber(4)Rear portion;The laying device work
When making, the rotating roller two(7)Direction of rotation and the rotating roller one(6)Direction of rotation on the contrary, or the rotating roller two
(7)Linear velocity direction it is opposite or identical with the moving direction of the laying device.
Further, the 3D printing equipment laying device further includes brush roll(10), it is equipped on the brush roll excircle
Bristle, with the rotating roller one(6)With the rotating roller two(7)It is isometric, rotating brush can be continued and swept, rotating roller one is removed(6)
With rotating roller two(7)Upper viscous foreign matter.
Further, the rotating roller one(6)With rotating roller two(7)Between be provided with difference in height t, the difference in height t and be
The compressible thickness value for the pre-coated layer that 3D printing equipment laying device operation is formed.
Further, the 3D printing equipment laying device further includes roller driving device(11), the roller driving
Device(11)It can be arranged and adjust the rotating roller one(6)With rotating roller two(7)Between difference in height t.
Further, the roller driving device(11)Including driving arm(11c), the rotating roller one(6), rotating roller
Two(7)And brush roll(10)All it is mounted on the driving arm(11c)On.
Further, the roller driving arm(11c)On be provided with holder and adjust left loose piece(11a)It is adjusted with holder right
Loose piece(11b), one driving wheel of rotating roller can be also set(6a), two driving wheel of rotating roller(7a), brush roll driving wheel(10a)The centre and
Wheel(6b and/or 7b and/or 10b);
The holder adjusts loose piece(11a,11b)It is connected to the driving arm(11c)On, the holder adjusts loose piece(11a,
11b)It can be arranged and adjust the rotating roller one(6)With rotating roller two(7)Between difference in height t;
The breast wheel(6b,7b,10b), rotating roller one(6), one driving wheel of rotating roller(6a), rotating roller two(7), rotating roller two
Driving wheel(7a), brush roll(10)With brush roll driving wheel(10a)All it is mounted on the driving arm(11c)On;
One driving wheel of the rotating roller(6a)With rotating roller one(6)Connection rotates synchronously, two driving wheel of the rotating roller(7a)With
Rotating roller two(7)Connection rotates synchronously, the brush roll driving wheel(10a)With brush roll(10)Connection rotates synchronously;
The breast wheel(6b and/or 7b and/or 10b), one driving wheel of rotating roller(6a), two driving wheel of rotating roller(7a)And brush roll
Driving wheel(10a)It is connected with each other, forms the train mutually driven;The breast wheel(6b and/or 7b and/or 10b)Or rotating roller
One driving wheel(6a)Or two driving wheel of rotating roller(7a)Or brush roll driving wheel(10a)In any one be driving wheel, by rotating
Driver drives, and so that wheel is tied up to the lower operating of rotating driver driving, makes rotating roller one(6), rotating roller two(7)And brush roll(10)It presses
Predetermined direction rotates.
Further, the 3D printing equipment laying device further includes laying device holder(12), the laying device
Holder(12)Upper end and supporting beam(1)It is connected, with the 3D printing equipment laying device synchronizing moving;
The laying device holder(12)With the roller driving device(11)Connection, drives the roller driving device(11)It moves
It is dynamic;Meanwhile the laying device holder(12)It is configured to be arranged and adjust the roller driving device(11)Rotation angle
Degree.
Further, the laying device holder(12)On be provided with the left loose piece of holder(12a)With the right loose piece of holder
(12b), the left loose piece of holder(12a)With the right loose piece of holder(12b)Can be fixedly connected can also be from laying device holder(12)On
Replacement is removed to use;
The holder loose piece(12a and 12b)Upper to be provided with strip sliding slot, the width of sliding slot adjusts loose piece with the holder(11a
And 11b)Diameter it is identical, the left adjustment axis of holder(11a)Mounted on the left loose piece of holder(12a)Sliding slot in move, it is described
The right adjustment axis of holder(11b)Mounted on the right loose piece of holder(12b)Sliding slot in move.
Further, the left loose piece of stone holder(12a)On sliding slot be with left lower than right or right low left high or set vertically
It sets or is horizontally disposed with, the right loose piece of stone holder(12b)On sliding slot be right low left high it is with left lower than right or horizontally disposed or
It is vertically arranged, ensures the holder adjustment loose piece(11a and 11b)It is slid freely in sliding slot;The sliding slot can be arranged and adjust
It saves the holder and adjusts left loose piece(11a)Right loose piece is adjusted with the holder(11b)Position.
Further, the blanking chamber(4)It is by fixed side panel(42), bottom plate(43)And mobile side board(44)Limitation is formed
Space;The mobile side board(44)It is hinged on the storage bin(2)Lower part, the bottom plate(43)With the mobile side board
(44)Between form feed opening(41);The mobile side board(44)Hinge joint be higher than storage bin(2)The lower edge of side plate, is not required to
It seals, it will not sand leakage.
Further, the feed opening(41)Equipped with regulating device(9), the regulating device(9)With the mobile side board
(44)It is connected, adjusts mobile side board lockablely(44)Angle, to change lower sand mouth(41)The size of opening, to control
The discharge of dusty material number, minimum can make dusty material stop outflow.
Further, the 3D printing equipment laying device further includes vibrating device(8), and/or it is mounted on storage bin
The material device living of bottom(5), the vibrating device(8)The dusty material shake of printing is dissipated, relaxes and lives, makes to enter blanking chamber(4)'s
Dusty material is loose, without caking situation;The material device living(5)The dusty material of printing is relaxed and lives, break up, makes to enter blanking chamber
(4)Dusty material it is loose, without luming, be adhered situation;The material device living(5)For mobilizable at least one layer of sieve, such as
Two layers of sieve that opposite can be sieved;The vibrating device(8)Preferentially use electromagnetic oscillation formula vibrator or rotator shaker.
Further, the method for carrying out stone with laying device using the 3D printing equipment, comprises the steps of:
1)Pre-coated layer is calculated according to the pasting parameter of the type of dusty material used, granularity, shape, curing agent used and conditioning agent
Compressible thickness value t corresponding roller driving device is configured according to the size of t values(11)And/or corresponding stone holder
(12), such as select corresponding stone holder loose piece(12a and 12b);
2)The good roller driving device of mounting and adjusting(11)With stone holder(12), detect the roller driving device(11)With
Stone holder(12)Fit clearance, such as will be selected stone holder loose piece(12a and 12b)It is installed to the stone holder
On, detect the holder adjustment loose piece(11a and 11b)Fit clearance in holder loose piece sliding slot, guarantee activity are flexible;
3)Start 3D printing equipment, the laying device is started to work, and the laying device, which moves downward, carries out stone operation, branch
Support beam(1)Drive laying device holder(12)It moves downward, holder(12)Push holder(11C)Movement, the left adjustment axis of holder
(11a)In the left loose piece of holder(12a)The right end of sliding slot, the right adjustment axis of holder(11b)In the right loose piece of holder(12b)Sliding slot
Right end, make the left adjustment axis of holder(11a)The right adjustment axis of high trestle(11b), to make rotating roller one(6)Less than rotating roller two
(7), difference in height t;At this point, rotating roller two of the bed of material through rotating clockwise that laying device is spread(7)Brush is swept and is flattened in advance
Afterwards, plane and rotating roller two on the bed of material(7)Lower arc surface is contour, the rotating roller one through rotating counterclockwise(6)Roll consolidation, stone
Layer is t by consolidation compressed thickness;
4)After reaching print job region left end, the laying device is reversed again, moves right and carries out stone operation, holder
(12)Push holder(11C)It moves right, the left adjustment axis of holder(11a)In the left loose piece of holder(12a)The left end of sliding slot, branch
The right adjustment axis of frame(11b)In the right loose piece of holder(12b)The left end of sliding slot;Make the left adjustment axis of holder(11a)Less than the holder right side
Adjust axis(11b), to make rotating roller one(6)Higher than rotating roller two(7), difference in height t;At this point, the material that laying device is spread
Rotating roller one of the layer through rotating counterclockwise(6)After brush is swept and is flattened in advance, plane and rotating roller one on the bed of material(6)Lower arc surface etc.
Height, the rotating roller two through rotating clockwise(7)Consolidation is rolled, pre-coated layer is t by consolidation compressed thickness;
5)Repeat step 3)With step 4), until the scheduled printing number of plies is fully completed.
Beneficial effects of the present invention include at least:
(1)The present invention design 3D printing equipment laying device, using can close, sizable feed opening, solve lower sand
Waste of material and environmental pollution caused by mouth can not close;
(2)The present invention puts down pulverulent material layer using the roller brush actively reversely rotated, is rolled using the roller rotated in the forward direction
Consolidation pulverulent material layer, and ensure using variable height difference t the degree of packing of pulverulent material layer, it ensure that the tight of 3D printing product
Solidity;
(3)Roller height difference adjusting mechanism that the present invention uses is simple, easy care is replaced, and at low cost, stable structure is reliable;
(4)The 3D printing equipment laying device and its stone method that the present invention designs are used for 3D printing equipment, it can be achieved that entirely certainly
Move two-way stone, forward and backward to when rotating roller the opening and closing of difference in height and lower sand mouth all realize and automatically control.
Description of the drawings
Fig. 1 is the internal structure view one of one embodiment of 3D printing equipment laying device of the present invention;
Fig. 2 is the partial enlarged view of the internal structure of one embodiment of 3D printing equipment laying device of the present invention;
Fig. 3 is the axial inner topology view two of one embodiment of 3D printing equipment laying device of the present invention;
Fig. 4 is the axial arrangement of the rotating roller one and rotating roller two of one embodiment of 3D printing equipment laying device of the present invention
Partial enlarged view;
Fig. 5 is the roller driving device of one embodiment of 3D printing equipment laying device of the present invention(11a,11b,11c)'s
Amplify three-view diagram;
Fig. 6 is the structural front view of one embodiment of 3D printing equipment laying device of the present invention;
Fig. 7 is the structure left view of one embodiment of 3D printing equipment laying device of the present invention;
Fig. 8 is the laying device holder and roller driving device of one embodiment of 3D printing equipment laying device of the present invention
Installation diagram;
Fig. 9 is the partial enlarged view of Fig. 8;
Figure 10 be 3D printing equipment laying device of the present invention one embodiment three kinds of stone states when holder adjust axis and
The schematic diagram of holder movable block position relationship;
Figure 11 be 3D printing equipment laying device of the present invention one embodiment to the left stone when holder adjust the work of axis and holder
The schematic diagram of motion block position relationship;
Figure 12 be 3D printing equipment laying device of the present invention one embodiment to the right stone when holder adjust the work of axis and holder
The schematic diagram of motion block position relationship.
Wherein, 1- supporting beams, 2- storage bins, 3- feeding devices, 4- blanking chambers, 5-, which lives, expects device, 6- rotating rollers one, 6a-
One driving wheel of rotating roller, 7- rotating rollers two, two driving wheel of 7a- rotating rollers, 8- vibrating devices, 9- regulating devices, 10- brush rolls,
10a- brush roll driving wheels, 6b, 7b, 10b- breast wheel, 11- roller driving devices, the left adjustment axis of 11a- holders, the right tune of 11b- holders
Bearing, 11c- driving arms, 41- feed openings, 42- fixed side panels, 43- bottom plates, 44- mobile side boards, 12- laying device holders,
The left loose piece of 12a- holders, the right loose piece of 12b- holders.
Specific implementation mode
In order to make those skilled in the art more fully understand technical scheme of the present invention, with reference to specific embodiment to this
Invention is described in further detail.It note that the embodiments described below is exemplary, be only used for explaining the present invention, and
It is not considered as limiting the invention.Particular technique or condition are not specified in embodiment, according to document institute in the art
The technology or condition of description are carried out according to product description.Reagents or instruments used without specified manufacturer, being can
With conventional products that are commercially available.
According to an aspect of the present invention, the present invention provides 3D printing equipment laying device, Fig. 1 is that 3D of the present invention is beaten
The axial inner topology view one of one embodiment of printing apparatus laying device, it is shown that the relative position of partial internal structure
Relationship and interactively;It will be seen from figure 1 that 3D printing equipment laying device of the present invention, for by the powder of 3D printing
Material is applied in print job region, forms multiple layer powder material layer shown in figure, wherein the amount of powder material formed
Layer has been printed as cured product.The power spreading device includes:Supporting beam 1, storage bin 2, feeding device 3, blanking chamber 4, until
Lack the supporting beam 1 of an entire laying device of support, the laying device for including two supporting beams, the supporting beam are given in figure
Across print job region, carrying laying device moves in print job region;At least one storage bin 2, the present embodiment is given
A storage bin is gone out, the storage bin is an elongated vessel across print area, is connected in supporting beam 1, for reality
Existing positive and negative two-way sanding, the present embodiment make storage bin 2 such as diagram shape, form two storage cavitys of dependent;The conveying
Device 3 is mounted on the top of 2 inner cavity of storage bin, the dusty material of printing is transported in entire storage bin, dusty material is made to exist
It is uniformly distributed in the length of storage bin;The blanking chamber 4, this gives a storage bin lower parts to be provided with 2 blankings
Chamber, the blanking chamber are connected to the storage bin 2, and blanking chamber lower part is equipped with isometric elongated feed opening 41, as shown in the figure
Stone when two feed openings are for laying device different motion direction, the feed opening on right side when laying device moves right,
The feed opening in left side on the contrary.Laying device further includes rotating roller 1, can also be further added by rotating roller 27, and the rotating roller one is
One segment length is more than the round roller of feed opening, is arranged in the lower part of the storage bin 2, is arranged in the rear portion of the blanking chamber 4;
When laying device moves right progress stone operation, the rotating roller 1 rotates counterclockwise, as illustrated by the arrows in fig. 1, Ye Jixuan
Transfer roller one is upward close to the linear velocity direction of the arc surface of feed opening 41, and rotating roller 1 plays brush and puts down at this time, can claim
To put down roller;The brush that the layer of powder material spread from lower sand mouth is rotated counterclockwise by one periphery of rotating roller, makes powder
Last layer becomes more smooth;The rotating roller 27 is the round roller that a segment length is more than feed opening, is arranged in the storage bin 2
Lower part, be arranged in the rear portion of the blanking chamber 4;When laying device works, the direction of rotation of the rotating roller 27 with it is described
The direction of rotation of rotating roller 1 is on the contrary, as shown by the arrows in Figure 1, rotating roller 27, which serves, at this time rolls consolidation, can be referred to as
Milling roller;Rotating roller 1 is identical as 27 diameter of rotating roller, the layer of powder material of laying through rotating roller sweep brush flat it is whole after, then pass through
Rotating roller 27 rolls, and makes powder bed more consolidation.Conversely, when laying device is moved to the left progress stone operation, the rotation
Roller 27 rotates clockwise, and as illustrated by the arrows in fig. 1 namely rotating roller two is close to the linear velocity side of the arc surface of left side feed opening 41
To upward, rotating roller 27 plays brush and puts down at this time, can be referred to as to put down roller;The dusty material spread from lower sand mouth
The brush that layer is rotated clockwise by two periphery of rotating roller, makes powder bed become more smooth;The rotation side of the rotating roller 1
To the direction of rotation with the rotating roller 27 on the contrary, as shown by the arrows in Figure 1, rotating roller 1, which serves, at this time rolls consolidation,
It can be referred to as milling roller;The layer of powder material of laying rolls after 27 brush of rotating roller is smooth, then through rotating roller 1, makes powder
Layer more consolidation.The rotating roller 1 plays brush when laying device moves right stone and paves, laying device to the left
Play rolling consolidation when moving stone;The rotating roller 27 plays brush when laying device moves downward stone and paves,
Play rolling consolidation when laying device moves right stone.Further, in order to improve the degree of packing of pre-coated layer, the rotation
A predetermined value M can be arranged in the rotary speed of roller 1 and rotating roller 27, according to the type of dusty material, granularity, shape, institute
The parameters such as the property with curing agent and conditioning agent calculate the predetermined value M;For the particularly preferred dusty material of mobility, can make
The linear velocity of rotating roller 1 and rotating roller 27 is equal to the movement speed of laying device;For the bad powder material of mobility
Material can make the linear velocity of rotating roller 1 and rotating roller 27 be less than or greater than the movement speed of laying device.
According to a particular embodiment of the invention, the 3D printing equipment laying device further includes vibrating device 8 and installation
The dusty material shake of printing is dissipated, relaxes and live by the material device 5 living in storage bin bottom, the vibrating device 8, the material device 5 living
By the dusty material of printing relax it is living, break up, keep the dusty material into blanking chamber 4 loose, without luming, be adhered situation.Material dress living
5 are set as mobilizable at least one layer of sieve, such as two layers of sieve that opposite can be sieved;The vibrating device 8 preferentially uses electromagnetism
Vibrating type vibrator or rotator shaker.
Fig. 2 is that the part of the axial section internal structure of one embodiment of 3D printing equipment laying device of the present invention is put
Big view, it is shown that the detailed content of the parts such as lower sand mouth 41, blanking chamber 4, regulating device 9 and rotating roller 1.
According to a particular embodiment of the invention, the blanking chamber 4 is limited by fixed side panel 42, bottom plate 43 and mobile side board 44
Make the space formed;The mobile side board 44 is hinged on the lower part of the storage bin 2, the bottom plate 43 and the mobile side board 44
Between formed feed opening 41.The hinge joint of mobile side board 44 is higher than the lower edge of 2 side plate of storage bin, need not seal, will not leak
Sand.The mobile side board 44 is hinged on the lower part of storage bin, is connected with regulating device 9, and active side can be changed in the regulating device 9
The angle of plate 44, and lockable, to change the size of lower 41 opening of sand mouth, to control dusty material discharge it is more
Few, minimum can make dusty material stop outflow.
According to a particular embodiment of the invention, the 3D printing equipment laying device further includes brush roll 10, the brush roll
Bristle is housed on excircle, it is isometric with rotating roller 1 and rotating roller 27, it can brush and be glued in rotating roller 1 and rotating roller 27
Foreign matter.
Fig. 3 is the axial inner topology view two of one embodiment of 3D printing equipment laying device of the present invention, display
The present invention includes the internal structure relationship of roller driving device 11;Fig. 4 is the one of 3D printing equipment laying device of the present invention
The partial enlarged view of the rotating roller one of a embodiment and the axial arrangement of rotating roller two, Fig. 5 use for 3D printing equipment of the present invention
The roller driving device of one embodiment of laying device(11a,11b,11c)Amplification three-view diagram.Such as Fig. 3, Fig. 4 and Fig. 5 institute
Show, according to a particular embodiment of the invention, the 3D printing equipment laying device further includes roller driving device 11, the roller
Sub- driving device 11 includes:Driving arm 11c, intermediate gear(6b,7b,10b), one gear 6a of rotating roller, two gear of rotating roller
7a, brush roll gear 10a and holder adjust axis(11a,11b);The intermediate gear(6b,7b,10b), rotating roller 1, rotating roller
One gear 6a, rotating roller 27, two gear 7a of rotating roller, brush roll 10 and brush roll gear 10a are mounted on the driving arm 11c
On, one gear 6a of the rotating roller is connected with each other with rotating roller 1 and rotates synchronously, two gear 7a of the rotating roller and rotating roller two
7 are connected with each other synchronous rotation, and the brush roll gear 10a is connected with each other with brush roll 10 and rotates synchronously, the intermediate gear(6b,7b,
10b), one gear 6a of rotating roller, two gear 7a of rotating roller and brush roll gear 10a intermeshing, form gear train;The center tooth
Wheel(6b,7b,10b)Or any one in one gear 6a of rotating roller or rotating roller two gear 7a or brush roll gear 10a is actively
Wheel, the present embodiment set intermediate gear 6b to driving wheel, are connected with rotating driver, and gear train engagement operating makes rotation
Transfer roller 1, rotating roller 27 and brush roll 10 press predetermined direction rotation shown in arrow in Fig. 4.
Fig. 6 is the structural front view of one embodiment of 3D printing equipment laying device of the present invention, and Fig. 7 is 3D of the present invention
The structure left view of one embodiment of printing device laying device;According to a particular embodiment of the invention, such as Fig. 6 and Fig. 7
Shown, the 3D printing equipment laying device further includes laying device holder 12, the upper end of the laying device holder 12 with
Supporting beam 1 is connected, with the laying device synchronizing moving;Be provided on the laying device holder 12 the left loose piece 12a of holder and
The right loose piece 12b of holder, the left loose piece 12a of holder and the right loose piece 12b of holder can remove progress more from laying device holder 12
It changes and repairs;The holder loose piece(12a and 12b)Upper to be provided with strip sliding slot, the width of sliding slot adjusts axis with the holder
(11a and 11b)Diameter it is identical, formed clearance fit;The left adjustment axis 11a of holder is in the sliding slot of the left loose piece 12a of holder
Mobile, the right adjustment axis 11b of holder is moved in the sliding slot of the right loose piece 12b of holder;When laying device is spread by the traction of supporting beam 1
When expecting operation, the left loose piece and right loose piece of laying device holder 12 push the left and right adjustment axis movement of the holder in its sliding slot respectively,
To make driving arm 11c, roller driving device 11, rotating roller 1, rotating roller 27, brush roll 10 etc. move together;It revolves simultaneously
What transfer roller 1, rotating roller 27 and 10 rotation of brush roll carried out stone plane puts down and rolls consolidation.
Fig. 8 is that the laying device holder of one embodiment of 3D printing equipment laying device of the present invention and roller driving fill
The installation diagram set;Fig. 9 is the partial enlarged view of Fig. 8;According to a particular embodiment of the invention, as shown in Figure 8 and Figure 9, the branch
The strip sliding slot being arranged on the left loose piece 12a of the frame and right loose piece 12b of holder is not straight sliding slot, the left loose piece 12a of holder
On sliding slot be with left lower than right, the sliding slot on the right loose piece 12b of holder is right low left high, and one section with the right of one section of the left side is all
It seamlessly transits, ensures the holder adjustment axis(11a and 11b)It is slid freely in sliding slot.Such non-level art chute designs are
In order to make to generate a difference in height for squeezing consolidation between rotating roller 1 and rotating roller 27.When the laying device to the left
When movement carries out stone operation, the left adjustment axis 11a of holder is in the right end of the left loose piece 12a sliding slots of holder, the right adjustment axis of holder
11b is in the right end of the right loose piece 12b sliding slots of holder, as shown in Figure 10;Make the left right adjustment axis of adjustment axis 11a high trestles of holder
11b, to make rotating roller 1 be less than rotating roller 27, difference in height t, as shown in figure 11;At this point, the bed of material that laying device is spread
After the brush of rotating roller 27 is swept and flattened in advance, 27 times arc surfaces of plane and rotating roller are contour on the bed of material, rolled through rotating roller 1
Consolidation, can consolidation compressed thickness be t.When the laying device, which moves right, carries out stone operation, the left adjustment axis 11a of holder
Left end in the left loose piece 12a sliding slots of holder, the right adjustment axis 11b of holder are in the left end of the right loose piece 12b sliding slots of holder, such as
Shown in Figure 10;The left adjustment axis 11a of holder is set to be less than the right adjustment axis 11b of holder, it is high to make rotating roller 1 be higher than rotating roller 27
Degree difference is t, as shown in figure 12;At this point, the bed of material that is spread of laying device is after the brush of rotating roller 1 is swept and flattened in advance, on the bed of material
One 6 times arc surfaces of plane and rotating roller are contour, through rotating roller 27 roll consolidation, can consolidation compressed thickness be t.
According to a particular embodiment of the invention, the determination of the t values need to be according to the type, granularity, shape of dusty material used
The parameters such as the property of shape, curing agent used and conditioning agent determine.According to the size of t values, holder loose piece is designed(12a and 12b)It is sliding
The shape of the left and right section of slot determines the difference in height of left and right section and the distance of left and right loose piece;It is required that t is bigger, then sliding slot or so section
Difference in height setting it is bigger, the spacing of left loose piece 12a and right loose piece 12b is arranged smaller.When laying device of the present invention designs
After the completion, according to the spacing for calculating determining each t values and left and right loose piece, by the holder loose piece(12a and 12b)It is fabricated to suitable
The standard loose piece for closing the seriation of various operating modes distinguished with t values, for selecting.
According to a particular embodiment of the invention, the holder adjusts axis(11a and 11b)With holder loose piece(12a and 12b)It adopts
It is made of wear-resistant material, or carries out surface treatment and make it have preferable wearability.
According to a particular embodiment of the invention, the method for carrying out stone with laying device using the 3D printing equipment, packet
Containing following steps:
1)Pre-coated layer is calculated according to the pasting parameter of the type of dusty material used, granularity, shape, curing agent used and conditioning agent
Compressible thickness value t corresponding stone holder loose piece is selected according to the size of t values(12a and 12b);
2)By selected stone holder loose piece(12a and 12b)It is installed on the stone holder, detects the holder adjustment axis
(11a and 11b)Fit clearance in holder loose piece sliding slot, guarantee activity are flexible;
3)Start 3D printing equipment, the laying device is started to work, and the laying device, which moves downward, carries out stone operation, branch
Support beam 1 drives laying device holder 12 to move downward, and holder 12 pushes holder 11C movements, the left adjustment axis 11a of holder to be in holder
The right end of left loose piece 12a sliding slots, the right adjustment axis 11b of holder are in the right end of the right loose piece 12b sliding slots of holder, make the left tune of holder
The right adjustment axis 11b of bearing 11a high trestles, to make rotating roller 1 be less than rotating roller 27, difference in height t;At this point, laying device
The bed of material spread is after the rotating roller 27 of reverse rotation brush is swept and flattened in advance, plane and 27 times arc surfaces of rotating roller on the bed of material
Contour, the rotating roller 1 through rotating in the forward direction rolls consolidation, and pre-coated layer is t by consolidation compressed thickness;
4)After reaching print job region left end, the laying device is reversed again, moves right and carries out stone operation, holder 12
Holder 11C is pushed to move right, the left adjustment axis 11a of holder is in the left end of the left loose piece 12a sliding slots of holder, the right adjustment axis of holder
11b is in the left end of the right loose piece 12b sliding slots of holder;The left adjustment axis 11a of holder is set to be less than the right adjustment axis 11b of holder, to make
Rotating roller 1 is higher than rotating roller 27, difference in height t;At this point, rotating roller one 6 of the bed of material through reverse rotation that laying device is spread
After brush is swept and flattened in advance, one 6 times arc surfaces of plane and rotating roller are contour on the bed of material, and consolidation, pre-coated layer are rolled through rotating roller 27
It is t by consolidation compressed thickness;
5)Repeat step 3)With step 4), until the scheduled printing number of plies is fully completed.
In conclusion 3D printing equipment laying device of the present invention, using can close, sizable feed opening, use
The roller brush actively reversely rotated puts down pulverulent material layer, and consolidation pulverulent material layer is rolled using the roller rotated in the forward direction, and
And the degree of packing of pulverulent material layer is ensured using variable height difference t, improve the degree of packing of 3D printing product;It solves down simultaneously
The problems such as waste of material caused by sand mouth can not close and environmental pollution.
According to another embodiment of the invention, the left adjustment axis 11a of above-mentioned holder and the right adjustment axis 11b of holder can also be set
It sets on laying device holder 12, the left loose piece 12a of holder and the right loose piece 12b of holder can be arranged in roller driving arm at this time
On 11c, when the left loose piece 12a of the holder and right loose piece 12b of holder is arranged on roller driving arm 11c, described, the holder is left
Sliding slot on loose piece 12a is right low left high, and the sliding slot on the right loose piece 12b of holder is with left lower than right, one section of the left side and the right
One section all seamlessly transits, and ensures the holder adjustment axis(11a and 11b)It is slid freely in sliding slot.By this embodiment, ability
Field technique personnel are it is contemplated that the detailed structure of the left adjustment axis 11a of holder and the right adjustment axis 11b of holder can change, such as shape
Whether shape length, fixed form, increases axle sleeve or bearing etc., also belongs to protection scope of the present invention.
According to another embodiment of the invention, the left adjustment axis 11a of the above-mentioned holder and right adjustment axis 11b of holder and holder are left
The cooperation of loose piece 12a and the right loose piece 12b of holder belong to a kind of example of primary and secondary cooperation, it may occur to persons skilled in the art that its work(
Can be in order to realize the laying device after changing stone direction, relatively described stone direction in the laying device and
The lower arc surface of a roller is higher than the lower arc surface of latter one roller, difference in height t before speech;To realize this function,
The strip sliding slot of the above-mentioned left loose piece 12a and right loose piece 12b of holder of holder can be vertical arrangement, while automatic pull dress is arranged
It sets, when 3D printing equipment laying device stone to the left, the pulling device draws high the left adjustment axis 11a of the holder
And/or drag down the right adjustment axis 11b of holder, when 3D printing equipment laying device stone to the right, the pulling device
The left adjustment axis 11a of the holder is dragged down and/or draws high the right adjustment axis 11b of holder;Make opposite in the laying device
The lower arc surface of a roller is higher than the lower arc surface of latter one roller, difference in height t before for the stone direction.
Alternatively, the cooperation of holder left the adjustment axis 11a and the right adjustment axis 11b and the left loose piece 12a of holder and the right loose piece 12b of holder of holder
In, one of them can be fixed, such as the left adjustment axis 11a of the holder and left loose piece 12a of holder is fixedly mounted, the right adjustment axis of holder
The 11b and right loose piece 12b of holder is movable cooperation, also belongs to protection scope of the present invention.
According to another embodiment of the invention, above-mentioned roller driving device(11)With laying device holder(12)Cooperation
Effect(The specific left adjustment axis 11a's and right adjustment axis 11b and left loose piece 12a of the holder and right loose piece 12b of holder of holder of such as holder
Mating reaction), function be in order to realize the laying device after changing stone direction, it is opposite in the laying device
The lower arc surface of a roller is higher than the lower arc surface of latter one roller, difference in height t before for the stone direction;
The roller driving device(11)With laying device holder(12)Mating reaction, the hinged rotation of approximate rotary swinging arm may be used
The mode of turning is realized to form left and right difference in height t, and realizes the 3D printing equipment laying device by automatically controlling for driver
Automatically controlling when stone commutates.By this embodiment, it may occur to persons skilled in the art that, the roller driving device(11)With
Laying device holder(12)Cooperation other mechanisms or structure can be used to realize, also belong to protection scope of the present invention.
In the description of the present invention, it is to be understood that unless specifically defined or limited otherwise, term " installation ", " phase
Even ", the terms such as " connection ", " fixation " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or
Integrally;It can be mechanical connection, can also be electrical connection;It can be directly connected, the indirect phase of intermediary can also be passed through
Even, can be the interaction relationship of the connection or two elements inside two elements.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature can be with "above" or "below" second feature
It is that the first and second features are in direct contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " lower section " and " below " can be fisrt feature
It is directly under or diagonally below the second feature, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
It can be combined in any suitable manner in a or multiple embodiments or example.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification, meanwhile, for those of ordinary skill in the art, the think of according to the application
Think, there will be changes in the specific implementation manner and application range.