CN105252770B - 3 D-printing method and three-dimensional printer - Google Patents
3 D-printing method and three-dimensional printer Download PDFInfo
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- CN105252770B CN105252770B CN201510766076.XA CN201510766076A CN105252770B CN 105252770 B CN105252770 B CN 105252770B CN 201510766076 A CN201510766076 A CN 201510766076A CN 105252770 B CN105252770 B CN 105252770B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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Abstract
The present invention provides a kind of three-dimensional printer and 3 D-printing method, three-dimensional printer includes printhead, 3 D-printing platform and control unit, 3 D-printing platform includes supporting table, support board and pressure sensor, pressure sensor is arranged between supporting table and support board, control unit control printhead printer model on the print area of support board according to model signals, pressure sensor is arranged on support board and is located at lower section corresponding to print area, pressure sensor exports collection signal to control unit, and control unit is according to model signals and collection signal output control signal.And the 3 D-printing method of the three-dimensional printer.Obtain pressure value or gravimetric value in real time by pressure sensor, according to the analysis of model data and the comparison of pressure sensor gathered data, the implementing monitoring to print state is realized, will stop printing when such as there is comparing mismatch, avoids machine from continuing free-runing operation and wastes the time-write interval.
Description
Technical field
The present invention relates to printing field, more particularly to the 3 D-printing side of a kind of three-dimensional printer and the three-dimensional printer
Method.
Background technology
3D printer is also known as three-dimensional printer, is a kind of machine using rapid shaping technique, using mathematical model file as
Basis, using moulding material, three-dimensional entity is constructed by way of successively printing.Before printing, it is necessary to utilize computer
Modeling software is modeled, then the threedimensional model built up " subregion " is cut into slices, so as to instruct 3D printer successively into section successively
Printing.3D printer obtains a wide range of applications in product manufacturing industry, and the operation principle and conventional printer of 3D printer are basic
It is identical, by control assembly, mechanical component, printhead, consumptive material（That is moulding material）Formed with medium etc., printing principle also basic class
Seemingly.
3D printing head when print platform and is beaten by silk is extruded on 3 D-printing platform, then forming 3D solid
When the nozzle of print head is not parallel, i.e., when print platform tilts, the model printed warpage easily occurs or extrusion silk connects
Problem is not connect, then model scrappage is higher.Therefore, after printer dispatches from the factory, it is required for before user's printing to print platform
Flat conditions adjust, but in general adjustment be only with card between nozzle and print platform, then directly utilization
Judgement inaccuracy so be present and print-head nozzle easily be present and encounter print platform, cause to print in visual comparison to realize
Situations such as platform scratches, have a strong impact on Consumer's Experience.
In addition, in print procedure when blocking occurs in print-head nozzle or prints silk deficiency, cause to run in printing
In without lasting spinneret, while cause machine to continue free-runing operation, this also leads to the waste of time-write interval and resource.
The content of the invention
The first object of the present invention be to provide it is a kind of can to print status real time monitor 3 D-printing.
The second object of the present invention be to provide it is a kind of can to print status real time monitor 3 D-printing platform adjustment side
Method.
In order to realize the first object of the present invention, the present invention provides a kind of three-dimensional printer, including moves in the horizontal plane
Printhead, the 3 D-printing platform that vertically moves and control unit, control unit is used to control printhead and 3 D-printing
Platform moves, wherein, 3 D-printing platform includes supporting table, support board and pressure sensor, and pressure sensor is arranged on support
Between platform and support board, control unit control the printhead printer model on the print area of support board, pressure according to model signals
Force snesor is arranged on support board and is located at lower section corresponding to print area, and pressure sensor exports collection signal to control unit,
Control unit is according to model signals and collection signal output control signal.
From such scheme, due to three-dimensional printer printhead according to model signals on objective table according to predetermined
Slicing delamination model data and predetermined track carry out threedimensional model imaging, therefore pressure sensing is provided with below objective table
Device, pressure value or gravimetric value just can be obtained in real time by pressure sensor, according to the analysis of model data and pressure sensing
The comparison of device gathered data, such as control unit judgment models data and gathered data portion mismatch, i.e., printhead is likely to occur stifled
Plug or silk deficiency, then control unit output stop control signal so that three-dimensional printer stops printing, while can also send
Control signal is reminded, while user of service is reminded, can also avoid machine from continuing free-runing operation and waste the time-write interval, then
Realize the implementing monitoring to print state.
Further scheme is that 3 D-printing platform also includes support, and support is arranged in supporting table, and support is provided with
Groove, pressure sensor and support board are arranged in groove.
Further scheme is that 3 D-printing platform also includes multiple support components, and support is arranged on multiple support groups
On part, support component, which includes matching somebody with somebody with supporting table screw thread, merges the screw vertically set and the spring being enclosed on outside screw, screw
First end be fixedly connected with support, spring is connected between support and supporting table.
Therefore by the installation being provided with beneficial to pressure sensor and objective table of support, and by adjustable
Support component fixation is supported to support, more easily the flatness of objective table can be adjusted.
In order to realize the second object of the present invention, the present invention provides a kind of 3 D-printing method of three-dimensional printer, and three
Dimension printer includes the printhead moved in the horizontal plane, the 3 D-printing platform vertically moved and control unit, and control is single
Member is used to control printhead and 3 D-printing platform to move, wherein, the 3 D-printing platform includes supporting table, support board and pressure
Force snesor, pressure sensor are arranged between supporting table and support board, and control unit control printhead exists according to model signals
Printer model on the print area of support board, pressure sensor is arranged on support board and is located at lower section corresponding to print area, three-dimensional
Method of printing includes 3 D-printing monitoring step, and 3 D-printing monitoring step includes：Control unit controls printhead according to model
Signal is in objective table printer model；Current weight value is calculated in the data that control unit gathers according to pressure sensor；Judge
Whether current weight value matches with model signals；Such as current weight value and model signals mismatch, then control signal output stops
Control signal.
From such scheme, due to three-dimensional printer printhead according to model signals on objective table according to pre- cover half
Type data and predetermined track carry out threedimensional model imaging, therefore pressure sensor is provided with below objective table, just can
Pressure value or gravimetric value are obtained in real time by pressure sensor, according to the analysis of model data and pressure sensor gathered data
Comparison, as control unit judgment models data and gathered data portion mismatch, i.e., printhead is likely to occur blocking or silk not
Foot, then control unit output stop control signal so that three-dimensional printer stops printing, while can also send prompting control letter
Number, while user of service is reminded, it can also avoid machine from continuing free-runing operation and waste the time-write interval, then realize to printing
The implementing monitoring of state.
Further scheme is, control unit control printhead according to model signals objective table printer model it
Before, 3 D-printing monitoring step also includes：Control unit generates multiple hierarchy slicing model signals according to model signals.
Further scheme is, control unit controls printhead according to model signals the objective table printer model the step of
Control printhead according to hierarchy slicing model signals in objective table printer model for control unit.
Further scheme is to judge the step of whether current weight value matches with model signals to judge current weight
Whether value matches with hierarchy slicing model signals.
Therefore by model signals carry out hierarchy slicing and make printhead according to hierarchy slicing model signals successively
Printing, meanwhile, control unit can be compared according to hierarchy slicing model signals with the signal that pressure sensor gathers, can
More accurately and in time know print state.
Further scheme is that 3 D-printing platform also includes multiple support components and support, and support is arranged on support
On platform, support setting is fluted, and pressure sensor and support board are arranged in groove, and support is arranged in multiple support components,
Support component is used to make support vertically move, and before 3 D-printing monitoring step, 3 D-printing method also includes three-dimensional and beaten
Platform set-up procedure is printed, 3 D-printing platform set-up procedure includes the step of 3 D-printing platform is moved into default dead-center position
The step of with being calibrated to 3 D-printing platform, the step of being calibrated to 3 D-printing platform, are included successively to each branch
Support component carries out the step of first resolution calibration, and the step of support component progress first resolution calibration is included：Three
Dimension print platform is moved to calibrating position backwards to printhead；Printhead is moved to the top for the support component for needing to calibrate；It is three-dimensional
Print platform is moved to default dead-center position with first resolution towards printhead；Control unit gathers according to pressure sensor
Current pressure values are calculated in data；Judge whether current pressure values are equal to preset pressure value；If current pressure values are not equal to pre-
If pressure value, then by support component by bracket adjustment to target location, it is pre- that support is equal to current pressure values in target location
If pressure value；As current pressure values are equal to preset pressure value, then first resolution calibration is carried out to next support component.
Further scheme be the step of carrying out first resolution calibration to each support component successively after, it is right
The step of the step of 3 D-printing platform is calibrated also includes carrying out first resolution calibration to first support component again.
After further scheme is the step of calibration to 3 D-printing platform, 3 D-printing platform adjustment step
Suddenly the step of also including the step of being calibrated to image-forming range, being calibrated to image-forming range, includes：3 D-printing platform with
The step that 3rd resolution ratio moves towards printhead；The step of adjusting the image-forming range between support board and printhead；Will imaging
The step of distance is arranged to be imaged zero point.
Therefore before the printing, in order to improve printing precision need that the flatness of objective table is adjusted, have
Body, it would be desirable to the support board of leveling is arranged in support component, and at least three support components are adjusted successively, pass through by
3 D-printing platform rises to predeterminated position, printhead or is contacted with objective table, and utilizes the pressure value of pressure sensor collection
As school reference of reference, calibration accuracy and convenience are effectively improved, then more effectively intuitively adjusts support board
It is flat, then improve forming quality.
Brief description of the drawings
Fig. 1 is the structure chart of three-dimensional printer embodiment of the present invention.
Fig. 2 is the structure chart of printhead and 3 D-printing platform in three-dimensional printer embodiment of the present invention.
Fig. 3 is the structure decomposition figure of 3 D-printing platform in three-dimensional printer embodiment of the present invention.
Fig. 4 is the sectional view of 3 D-printing platform in three-dimensional printer embodiment of the present invention.
Fig. 5 is enlarged drawing at A in Fig. 4.
Fig. 6 is the system block diagram of three-dimensional printer embodiment of the present invention.
Fig. 7 is the flow chart of 3 D-printing method embodiment of the present invention.
Fig. 8 is the flow chart of 3 D-printing platform set-up procedure embodiment in 3 D-printing method embodiment of the present invention.
Fig. 9 is the flow chart for carrying out coarse adjustment calibration in 3 D-printing method embodiment of the present invention to print platform.
Figure 10 is the flow chart for carrying out fine tuning calibration in 3 D-printing method embodiment of the present invention to print platform.
Figure 11 is the flow chart for carrying out coarse adjustment in 3 D-printing method embodiment of the present invention to respective support component.
Figure 12 is the flow chart for carrying out fine tuning in 3 D-printing method embodiment of the present invention to respective support component.
Figure 13 is the flow chart calibrated in 3 D-printing method embodiment of the present invention to image-forming range.
Figure 14 is the flow chart of 3 D-printing monitoring step in 3 D-printing method embodiment of the present invention.
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment
Three-dimensional printer embodiment：
Reference picture 1 simultaneously combines Fig. 7, and Fig. 1 is the structure chart of three-dimensional printer 1, and three-dimensional printer 1 includes being installed in three-dimensional
3 D-printing platform 11, printhead 12, Z axis servomotor 131, Y-axis servomotor 132, X-axis servo electricity in the framework of printer
Machine 133, control unit 14, pressure sensor 6 and display unit 15, screw rod 21 passes through 3 D-printing platform 11, in screw rod 21
Z axis servomotor 131 is connected with bottom, guide rod is additionally provided with the both sides of screw rod 21.
Printhead 12 is arranged on X-axis guide rod, and X-axis guide rod is connected with X-axis servomotor 133, in X-axis servomotor 133
Under driving, printhead 12 can move along the x-axis, and X-axis guide rod is also associated with Y-axis guide rod (not shown), and Y-axis guide rod is connected with Y-axis and watched
Motor 132 is taken, under the driving of Y-axis servomotor 132, but X guide rods move along Y-axis.
Reference picture 2 and Fig. 3, Fig. 2 are the structure charts of 3 D-printing platform 11 and printhead 12, and Fig. 3 is 3 D-printing platform
11 exploded view, include support board 3, three support components 4, supporting table 5, pressure sensor 6, supports in 3 D-printing platform 11
7 and heater 8, coating is coated with support board 3, and support 7 is provided with the groove for accommodating support board 3, and heater 8 is in the form of sheets
Set, heater 8 is arranged on the back of the groove of support 7, heat can be transmitted to support 7 and support board 3 after the electrified regulation of heater 8
Amount, pressure sensor 6 and support board 3 be arranged in the groove of support 7, and pressure sensor 6 be located at support board 3 and support 7 it
Between position on, the print area on support board 3 is extruded silk and implementation model and printed by printhead 12, and pressure sensor
6 abutted with support board 3 and be arranged on support board 3 be located at print area it is corresponding lower section so that pressure sensor 6 passes through objective table
3 can gather the weight of model or the contact from printhead 12 on objective table 3.In the present embodiment, pressure sensor 6
It is the force-sensing sensor set using sheet, the force-sensing sensor both can use strain gauge resistance sensor or piezoelectric forces to sense
Device, capacitive force transducer can be used again.
Support 7 is arranged in three support components 4, and three support components 4 are set through the ground of supporting table 5, three support groups
Part 4 is in not set on the same line.Because 3 D-printing platform 11 can be moved vertically under the driving of servomotor,
I.e. 3 D-printing platform 11 is moved to the position contacted with printhead 12.
Reference picture 4 and Fig. 5, Fig. 4 are the sectional views of 3 D-printing platform 11, and Fig. 5 is the enlarged drawing at A in Fig. 4.Support group
Part, which includes matching somebody with somebody with the through hole whorl of supporting table 5, merges the screw 41 that can vertically set and the spring being enclosed on outside the screw 42,
Screw 41 passes through supporting table 5, and first end and the support 7 of screw 41 abut, and the second end of screw 41 is located at the opposite side of supporting table 5
On, between spring 42 is connected on the second end of supporting table 5 and screw 41, during rotary screw 41, vertically moved in screw 41
While promote support 7 moved up and down vertical, then realize support component 4 on vertical direction may move regulation.
Pressure sensor 6 is abutted against on the position between support 7 and support board 3, and printhead 12 is in the print zone of support board 3
It is extruded on domain as silk 121, by being piled into as silk 121 realizes that threedimensional model is imaged.Pressure sensing in the present embodiment
Device uses the pressure sensor of sheet, is changed by the deformation of the pressure sensor of sheet and the electric signal changed into, Neng Gouzhun
Really know change pressure value or change gravimetric value.Pressure sensor 6 by objective table 3 can gather on objective table 3 model to
Its pressure applied, then pressure sensor 6 export the signal of collection to control unit 14 and obtain the model by handling
Gravimetric value.In addition, when support board 3 contacts with printhead, pressure sensor 6 can obtain the pressure of the application of printhead 12.
Reference picture 7, Fig. 7 are the system block diagrams of three-dimensional printer 1.Control unit 14 is respectively to Z axis servomotor 131, Y-axis
Servomotor 132, the output drive signal of X-axis servomotor 133, respectively rotate each servomotor, then put down 3 D-printing
Platform 11 can vertically move under the driving of Z axis servomotor 131, make printhead 12 in the horizontal plane determined by X-axis and Y-axis
It is mobile.
Control unit 14 receives the collection signal that pressure sensor 6 exports, and control unit 14 is according to collection signal of change pair
The current pressure values answered, and the current pressure values are exported to display unit 15, display unit 15 is for showing current pressure
The display screen of value and preset pressure value.In addition when the model on to support board 3 carries out monitoring weight, control unit 15 is to root
According to gravimetric value corresponding to the signal of change of collection, and the gravimetric value is shown on display unit 15.
3 D-printing method embodiment：
Reference picture 7, Fig. 7 are the flow charts of 3 D-printing method embodiment, and three-dimensional printer 1 will installation in 3 D-printing
3 D-printing method carries out three-dimensional imaging, and specifically, 3 D-printing method includes 3 D-printing platform set-up procedure and three successively
Dimension printing monitoring step.
Reference picture 8, Fig. 8 are the flow charts of 3 D-printing platform set-up procedure.Step S1 is first carried out, inputs 3 D-printing
Platform adjust instruction, step S2 is then performed, 3 D-printing platform is up moved to default zero point, then performs to 3 D-printing
The step of platform is calibrated.
The step of being calibrated to 3 D-printing platform includes step S3 and step S4, first, step S3 is performed, to three-dimensional
Print platform carries out coarse adjustment calibration, then performs step S4, carries out fine tuning calibration to 3 D-printing platform, finally performs step
S5, the image-forming range between 3 D-printing platform and printhead is calibrated.
Reference picture 9, Fig. 9 are the flow charts that coarse adjustment calibration is carried out to 3 D-printing platform.Step S31 is first carried out, to
One support component carries out coarse adjustment, then performs step S32, carries out coarse adjustment to the second support component, then execution step S33, right
3rd support component carries out coarse adjustment, finally performs step S34, and coarse adjustment is carried out to the flatness of the 4th support component.
Reference picture 10, Figure 10 are the flow charts that fine tuning calibration is carried out to 3 D-printing platform.Step S41 is first carried out, it is right
First support component carries out fine tuning, then performs step S42, carries out fine tuning to the second support component, then performs step S43,
Fine tuning is carried out to the 3rd support component, finally performs step S44, fine tuning is carried out to the 4th support component.
Reference picture 11, Figure 11 be to respective support component carry out coarse adjustment flow chart, i.e., to the first support component, second
Support component or the 3rd support component carry out the flow chart of coarse adjustment.It is first carried out step S61,3 D-printing platform is from default zero point position
5 millimeters of decline is put to calibrating position, then performs step S62, printhead is moved to the top for the support component for needing to adjust, so
Step S63 is performed afterwards, and 3 D-printing platform is moved to default dead-center position, i.e. 3 D-printing with first resolution towards printhead
Platform is raised slowly to default dead-center position with 0.06 millimeter of resolution ratio.
Step S64 is then performed, current pressure values are calculated in the data that control unit gathers according to pressure sensor, so
Step S65 is performed afterwards, judges whether current pressure values are equal to preset pressure value.
As current pressure values are not equal to preset pressure value, then step S66 is performed, by support component by bracket adjustment to mesh
Cursor position, can refer to Fig. 4 i.e. adjusting screw 41 makes support 7 up or moves down, the rising of support 7 or move down by band dynamic pressure
The movement of sensor 6 and support board 3, support 7 will make current pressure values be equal to preset pressure value in target location.
Then the support component is calibrated again again, that is, performs step S67,3 D-printing platform declines 5 millimeters, so
Step S63, S64 and S65 are performed successively afterwards, as current pressure values are equal to preset pressure value, then to next support component progress the
One resolution ratio is calibrated.
Reference picture 12, Figure 12 be to respective support component carry out fine tuning flow chart, i.e., to the first support component, second
Support component or the 3rd support component carry out the flow chart of fine tuning.Step S71 is first carried out, 3 D-printing platform declines 5 millimeters extremely
Calibrating position, step S72 then being performed, printhead is moved to the top for the support component for needing to adjust, and then performs step 73,
3 D-printing platform is moved to default dead-center position with second resolution towards printhead, i.e., 3 D-printing platform is with 0.01 millimeter
Resolution ratio be raised slowly to default dead-center position.
Step S74 is then performed, current pressure values are calculated in the data that control unit gathers according to pressure sensor, so
Step S75 is performed afterwards, judges whether current pressure values are equal to preset pressure value.
As current pressure values are not equal to preset pressure value, then step S76 is performed, by support component by bracket adjustment to mesh
Cursor position, can refer to Fig. 4 i.e. adjusting screw 41 makes support 7 up or moves down, the rising of support 7 or move down by band dynamic pressure
The movement of sensor 6 and support board 3, support 7 will make current pressure values be equal to preset pressure value in target location.
Then the support component is calibrated again again, that is, performs step S77,3 D-printing platform declines 5 millimeters, so
Step S73, S74 and S75 are performed successively afterwards, as current pressure values are equal to preset pressure value, then to next support component progress the
Two resolution ratio are calibrated.
Reference picture 13, Figure 13 are the flow charts that image-forming range is calibrated.Step S51,3 D-printing platform is first carried out
Moved with the 3rd resolution ratio towards printhead, i.e., 3 D-printing platform is risen with 0.01 millimeter of resolution ratio, then performs step
S52, the image-forming range between support board and printhead is adjusted, i.e., stop the shifting of 3 D-printing platform when image-forming range is suitable
It is dynamic, step S53 is finally performed, image-forming range is arranged to be imaged zero point, when carrying out 3D solid imaging, 3 D-printing platform
Imaging zero point will be risen to, printhead is extruded into as silk to support board.
After 3 D-printing platform set-up procedure has been performed, 3 D-printing monitoring step, reference picture 14, Tu14Shi will be performed
The flow chart of 3 D-printing monitoring step.Step S81 is first carried out, control unit receives model signals and given birth to according to model signals
Into multiple hierarchy slicing model signals, hierarchy slicing model signals include the walking of the model, printhead of printing needed for each layer
Path, the length of walking path, the extruded velocity of printing and the Unit Weight for being imaged silk, then performs step S82, and control is single
Member control printhead extrudes silk in objective table according to hierarchy slicing model signals and realizes printer model, then performs step
S83, pressure sensor carry out real-time data collection to the model weight on support board, then perform step S84, control unit root
Current weight value is calculated in the data gathered according to pressure sensor, i.e., the gravimetric value of model on support board, then performs
Whether hierarchy slicing model signals are compared with current weight value for step S85, control unit, judge current weight value with dividing
Whether layer hierarchical model signal matches, because printhead is successively up printed on support board according to hierarchy slicing model signals
Imaging, i.e. model are also successively accumulation molding on support board, therefore the list as silk is combined into by hierarchy slicing model signals
Position weight can be informed in due gravimetric value under current printing progress, by current weight value with it is due under current printing progress
Gravimetric value compares, and judges whether two numerical value match, just can know whether print state is normal.As current weight value is cut with layering
Due gravimetric value mismatches in piece model signals, that is, represents that printhead occurs blocking or lacking silk so that silk can not be just
Often from printhead extrusion molding, therefore step S87 is performed, it is that three-dimensional printer stops beating that control signal output, which stops control signal,
Print.As current weight value matches with due gravimetric value in hierarchy slicing model signals, then step S86 is performed, continues to work as first three
Dimension printing.After the completion of printing, the model of shaping is located on the 3 D-printing platform, can also be by pressure sensor to model meter
Calculate its weight and show on the display unit.
Therefore the flatness of 3 D-printing platform is adjusted before three-dimensional imaging, effectively improve three-dimensional
The quality of imaging model, simultaneously because the printhead of three-dimensional printer according to model signals on objective table according to pre-determined model number
According to this and predetermined track carries out threedimensional model imaging, therefore pressure sensor is provided with below objective table, just can pass through
Pressure sensor obtains pressure value or gravimetric value in real time, according to the analysis of model data and the ratio of pressure sensor gathered data
Right, such as control unit judgment models data and gathered data portion mismatch, i.e. printhead is likely to occur blocking or silk deficiency, then
Control unit output stops control signal so that and three-dimensional printer stops printing, while can also send prompting control signal,
While reminding user of service, it can also avoid machine from continuing free-runing operation and waste the time-write interval, then realize to print state
Implementing monitoring.
Above-described embodiment is presently preferred embodiments of the present invention, except using support component in above-described embodiment can be with
Support is set vertically to be adjusted using other this area conventional technique schemes, for example with cam as support component,
Abutted by the cam surface of cam with support and can realize the height adjustable of support by rotating cam, or using wedge
Shape block assembly equally can be achieved on height adjustable, equally can be achieved on the purpose of the present invention, and the present invention can also adopt
Support board is supported with four support components or five support components, can similarly realize the purpose of the present invention.
Claims (9)
1. three-dimensional printer, including the printhead moved in the horizontal plane, the 3 D-printing platform that vertically moves and control are single
Member, described control unit are used to control the printhead and the 3 D-printing platform to move；
It is characterized in that：
The 3 D-printing platform includes supporting table, support board and pressure sensor, and the pressure sensor is arranged on the branch
Support between platform and the support board, described control unit control the printhead according to model signals the support board printing
Printer model on region, the pressure sensor is arranged on the support board and is located at lower section corresponding to the print area, described
Pressure sensor exports collection signal to described control unit, and described control unit is believed according to the model signals and the collection
Number output control signal；
The 3 D-printing platform also includes support, and the support is arranged in the supporting table, and the support setting is fluted,
The pressure sensor and the support board are arranged in the groove, and the pressure sensor uses the pressure sensing of sheet
Device, the pressure sensor are abutted against on the position between the support and the support board；
The 3 D-printing platform also includes heater, and the heater is arranged on the back of the groove of the support.
2. three-dimensional printer according to claim 1, it is characterised in that：
The 3 D-printing platform also includes multiple support components, and the support is arranged in multiple support components, described
Support component, which includes matching somebody with somebody with the supporting table screw thread, merges the screw vertically set and the spring being enclosed on outside the screw, institute
The first end for stating screw is fixedly connected with the support, and the spring is connected between the support and the supporting table.
3. the 3 D-printing method of three-dimensional printer, the three-dimensional printer includes printhead, the edge moved in the horizontal plane
The 3 D-printing platform and control unit of vertical movement, described control unit are used to control the printhead and the 3 D-printing
Platform moves；
It is characterized in that：
The 3 D-printing platform includes supporting table, support board and pressure sensor, and the pressure sensor is arranged on the branch
Support between platform and the support board, described control unit control the printhead according to model signals the support board printing
Printer model on region, the pressure sensor are arranged on the support board and are located at lower section corresponding to the print area；
The 3 D-printing method includes 3 D-printing monitoring step, and the 3 D-printing monitoring step includes：
Described control unit controls the printhead according to model signals in the objective table printer model；
Current weight value is calculated in the data that described control unit gathers according to the pressure sensor；
Judge whether the current weight value matches with the model signals；
Such as the current weight value and model signals mismatch, then described control unit output stops control signal.
4. 3 D-printing method according to claim 3, it is characterised in that：
Control the printhead according to the model signals before the objective table printer model in described control unit, it is described
3 D-printing monitoring step also includes：
Described control unit generates multiple hierarchy slicing model signals according to the model signals.
5. 3 D-printing method according to claim 4, it is characterised in that：
It according to the model signals the objective table printer model the step of is institute that described control unit, which controls the printhead,
Stating control unit controls the printhead according to the hierarchy slicing model signals in the objective table printer model.
6. 3 D-printing method according to claim 5, it is characterised in that：
Judge the step of whether the current weight value matches with the model signals for judge current weight value whether with it is described
Hierarchy slicing model signals match.
7. according to the 3 D-printing method described in any one of claim 3 to 6, it is characterised in that：
The 3 D-printing platform also includes multiple support components and support, and the support is arranged in the supporting table, described
Support setting is fluted, and the pressure sensor and the support board are arranged in the groove, and the support is arranged on multiple
In the support component, the support component is used to make the support vertically move；
Before 3 D-printing monitoring step, the 3 D-printing method also includes 3 D-printing platform set-up procedure, and described three
Dimension print platform set-up procedure is including the step of 3 D-printing platform is moved into default dead-center position and to the three-dimensional
The step of print platform is calibrated；
The step of being calibrated to the 3 D-printing platform includes successively carrying out support component each described first resolution
The step of rate is calibrated；
The step of carrying out first resolution calibration to a support component includes：
The 3 D-printing platform is moved to calibrating position backwards to the printhead；
The printhead is moved to the top for the support component for needing to calibrate；
The 3 D-printing platform is moved to default dead-center position with first resolution towards the printhead；
Current pressure values are calculated in the data that described control unit gathers according to the pressure sensor；
Judge whether the current pressure values are equal to preset pressure value；
The preset pressure value as described in being not equal to the current pressure values, then by the support component by the bracket adjustment to mesh
Cursor position, the support make the current pressure values be equal to the preset pressure value in the target location；
The preset pressure value as described in being equal to the current pressure values, then first resolution school is carried out to next support component
It is accurate.
8. 3 D-printing method according to claim 7, it is characterised in that：
After the step of carrying out first resolution calibration to support component each described successively, the 3 D-printing platform is entered
The step of the step of row calibration, also includes carrying out first resolution calibration to first support component again.
9. 3 D-printing method according to claim 8, it is characterised in that：
After the step of being calibrated to the 3 D-printing platform, the 3 D-printing platform set-up procedure is also included to imaging
The step of distance is calibrated, the step of being calibrated to image-forming range, include：
The step that the 3 D-printing platform is moved with the 3rd resolution ratio towards the printhead；
The step of adjusting the image-forming range between the support board and the printhead；
The step of image-forming range is arranged to be imaged zero point.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510766076.XA CN105252770B (en) | 2015-11-10 | 2015-11-10 | 3 D-printing method and three-dimensional printer |
| PCT/CN2016/103701 WO2017080369A1 (en) | 2015-11-10 | 2016-10-28 | Three-dimensional printing method and three-dimensional printer |
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| CN201510766076.XA CN105252770B (en) | 2015-11-10 | 2015-11-10 | 3 D-printing method and three-dimensional printer |
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| CN105252770A CN105252770A (en) | 2016-01-20 |
| CN105252770B true CN105252770B (en) | 2018-04-03 |
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| WO2017080369A1 (en) | 2017-05-18 |
| CN105252770A (en) | 2016-01-20 |
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