CN108000874B - A kind of 3D printer - Google Patents
A kind of 3D printer Download PDFInfo
- Publication number
- CN108000874B CN108000874B CN201711288659.1A CN201711288659A CN108000874B CN 108000874 B CN108000874 B CN 108000874B CN 201711288659 A CN201711288659 A CN 201711288659A CN 108000874 B CN108000874 B CN 108000874B
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- printer
- light
- print head
- bottom plate
- information
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
-
- 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
Abstract
The present invention provides a kind of 3D printers, including transparency printing bottom plate, print head, control system, printhead positioning system, step actuator, it is provided with MxN light detection area domain on the transparency printing bottom plate, a light sensor is provided in each light detection area domain.The co-ordinate position information that control system can be transmitted according to printhead positioning system, determine the footprint information of printer model, simultaneously in print procedure, the light variable signal that can be transmitted according to light sensor, judge whether the bottom surface of current printer model has and alice phenomenon occurs, and control print head stopping when alice phenomenon occurs and continue to discharge, to achieve the purpose that save material.
Description
Technical field
The present invention relates to 3D printer technical field more particularly to a kind of 3D printers.
Background technique
3D printing, i.e. one kind of rapid shaping technique, it is one kind based on digital model file, with powdered gold
Belong to or the adhesive materials such as plastics, constructs the technology of object by layer-by-layer printing.3D printing is usually using number
Technologic material printer is often used for modeling in fields such as mold manufacture, industrial designs come what is realized, after be gradually available for one
The direct manufacture of a little products has had using components made of the printing of this technology.The technology is set in jewelry, footwear, industry
Meter, building, engineering and construction (AEC), automobile, aerospace, dentistry and medical industries, education, GIS-Geographic Information System, building work
Journey, gun and other field are all applied.
The 3D printing technique of mainstream mainly includes four kinds at present: Stereolithography technology (SLA), three-dimensional powder adhesive technology
(3DP), Selective Laser Sintering (SLS) and fusion sediment rapid shaping technique (FDM).Wherein, fusion sediment is quick
Forming technique (FDM) is also known as fuse deposition technique, it is by Filamentous heat-fusible materials heating and melting, by having a fine spray
The spray head of mouth is squeezed and is gushed out.When work, each interlamellar spacing is first determined, computer is sliced three-dimensional computer model, path is generated,
Then spray head mobile discharging by path under the control of the computer, hot melt material bonding is on the table or the cured layer of preceding layer
On face, one layer of workbench of every solidification moves down an interlamellar spacing, repeatedly layer-by-layer preparation, until the last layer, passes through material
Layer upon layer forms final finished.
It is removed from workbench (i.e. printing bottom plate) for the ease of printout, hot melt material generally selects degree of adhesion moderate
Material, this is resulted in when the height of printed product is higher, and product bottom surface and the workbench contact portion of printing are easy to happen
Phenomenon is tilted, and then print head is caused accurately not continue to print according to desired guiding trajectory, so that the product that printing obtains
It is unable to reach expected requirement.Meanwhile the generally existing problem of FDM technology, exactly expect that silk must continual confession in printing
Material, and the molding time of FDM is generally longer, if the product bottom surface of printing and workbench contact portion occur to tilt phenomenon, no
The model for forming part before will result only in is scrapped, simultaneously because material silk is still constantly being fed, a large amount of wastes of material is caused (to press
According to expected computer model, it only can just stop being fed when printing is fully completed).
Summary of the invention
For the prior art, there are problems, it is desirable to provide a kind of 3D printer is being beaten to solve existing 3D printer
When printed model bottom surface and workbench contact portion occurs to tilt phenomenon, it can not stop expecting that silk continues to be fed, cause material unrestrained
The problem of taking.
To achieve the above object, a kind of 3D printer, including transparency printing bottom plate, the transparency printing are inventor provided
It is provided with MxN light detection area domain on bottom plate, a light sensor is provided in each light detection area domain；The 3D printer
Further include:
Print head is set to above transparency printing bottom plate, described for silk material to be fed to the extruder motor of heater
Extruder motor is stepper motor；
Printhead positioning system, for obtaining the co-ordinate position information of print head, the co-ordinate position information includes X-coordinate
Information, Y-coordinate information, Z coordinate information；The X-coordinate and Y-coordinate information are that print head is projected to the coordinate of transparency printing bottom plate
Information, Z coordinate information are elevation information of the print head relative to transparency printing bottom plate；
Step actuator is connected to the extruder motor and can control the operation of the extruder motor；
The variation for the co-ordinate position information that control system is used to be transmitted according to printhead positioning system and light sensor
The light variable signal of transmission, to control the operation of the step actuator.
Further, the control system includes sensor control circuit, and the sensor control circuit is for receiving
After the Z coordinate information change signal issued to printhead positioning system, the light sensor in light detection area domain is opened；The Z
Coordinate information variable signal is what print head was generated since transparency printing bottom position, when Z coordinate information changes for the first time
Signal.
Further, the control system further includes master controller, and the master controller is used in sensor control circuit
Receive printhead positioning system sending Z coordinate information change signal when, according to print head transparency printing bottom plate movement
Track obtains printer model footprint information, and passes through the light where sensor control circuit open printing model footprint information
Light sensor in detection area；X-coordinate of the printer model footprint information according to print head in transparency printing bottom plate is believed
It ceases situation of change and Y-coordinate information change situation determines.
Further, the light sensor is used to detect that the brightness value in light detection area domain is more than predetermined luminance value
When, light variable signal is sent to control system；
Control system is used for the light variable signal transmitted according to light sensor, to control the behaviour of the step actuator
Work includes: the light variable signal that control system is used to be transmitted according to light sensor, controls extruder by step actuator
Motor stops working.
Further, the control system is also used to judge whether the light sensor quantity of transmission ray variable signal surpasses
Preset quantity is crossed, stops working if then controlling extruder motor by step actuator, does not otherwise pass through step actuator control
Extruder motor processed stops working.
Further, the 3D printer further includes prompt unit, and control system is also used to by step actuator control
Extruder motor processed stops working, and issues prompt information by the prompt unit.
It is different from the prior art, 3D printer of the invention has the following characteristics that including transparency printing bottom plate, described transparent
It is provided with MxN light detection area domain on printing bottom plate, a light sensor is provided in each light detection area domain；The 3D is beaten
Print machine further include: print head is set to above transparency printing bottom plate, for silk material to be fed to the extruder motor of heater,
The extruder motor is stepper motor；Printhead positioning system, for obtaining the co-ordinate position information of print head, the coordinate
Location information includes X-coordinate information, Y-coordinate information, Z coordinate information；The X-coordinate and Y-coordinate information be print head project to
The coordinate information of transparency printing bottom plate, Z coordinate information are elevation information of the print head relative to transparency printing bottom plate；Stepper drive
Device is connected to the extruder motor and can control the operation of the extruder motor；Control system is used for basis and beats
The light variable signal of variation and the light sensor transmission of the co-ordinate position information of head positioning system transmission is printed, to control
The operation of the step actuator.
The co-ordinate position information that control system can be transmitted according to printhead positioning system determines the bottom surface letter of printer model
Breath, while in print procedure, the light variable signal that can be transmitted according to light sensor judges the bottom of current printer model
Whether face, which has, occurs alice phenomenon, and controls print head stopping when alice phenomenon occurs and continue to discharge, to reach saving material
The purpose of material.
Detailed description of the invention
Fig. 1 is the floor diagram for the 3D printer that one embodiment of the invention is related to；
Fig. 2 is the schematic diagram of the application process for the 3D printer that one embodiment of the invention is related to；
Description of symbols:
101, bottom plate is printed；102, light sensor；103, light detection area domain；201, printer model bottom surface；
Specific embodiment
Technology contents, construction feature, the objects and the effects for detailed description technical solution, below in conjunction with specific reality
It applies example and attached drawing is cooperated to be explained in detail.
Referring to Fig. 1, the present invention provides a kind of 3D printer, including transparency printing bottom plate 101, the transparency printing bottom plate
It is provided with MxN light detection area domain 103 on 101, a light sensor 102 is provided in each light detection area domain 103.It will beat
Back-plane design is printed at transparent, and when being conducive to that brightness sends variation in light detection area domain, light sensor can be caught in time
It catches.The size and density in light detection area domain can be adjusted according to actual needs.
The 3D printer further include:
Print head is set to above transparency printing bottom plate, described for silk material to be fed to the extruder motor of heater
Extruder motor is stepper motor.Print head generally includes extruder, and extruder includes the extruder motor with output gear,
Output gear engages with the silk material of printed material and drives forwards silk material in heating unit.Extruder motor, which can be, appoints
The motor of what suitable type, such as the stepper motor controlled by step actuator.Heating unit is for melting silk material, after heating
Silk material can be exported by the nozzle of print head, then start successively to be printed.
Printhead positioning system, for obtaining the co-ordinate position information of print head, the co-ordinate position information includes X-coordinate
Information, Y-coordinate information, Z coordinate information；The X-coordinate and Y-coordinate information are that print head is projected to the coordinate of transparency printing bottom plate
Information, Z coordinate information are elevation information of the print head relative to transparency printing bottom plate.3D printer is to be based on cutting in print procedure
What piece carried out, it is determined according to three-dimensional computer model per a piece of path by computer, i.e., per a piece of preset changes in coordinates information.
In actual application, the co-ordinate position information of print head constantly changes with the movement of print head, thus print head is fixed
The co-ordinate position information of current print head can be fed back to control system in real time by position system, so that control system knows "current" model
Printing progress, and the co-ordinate position information of current print head.
Step actuator is connected to the extruder motor and can control the operation of the extruder motor.Control
The light of the variation for the co-ordinate position information that system processed is used to be transmitted according to printhead positioning system and light sensor transmission
Variable signal, to control the operation of the step actuator.
In short, the co-ordinate position information that control system can be transmitted according to printhead positioning system, determines printer model
Footprint information, while in print procedure, the light variable signal that can be transmitted according to light sensor judges current printing
Whether the bottom surface of model, which has, occurs alice phenomenon.Light sensor detects originally lower than the light detection area domain of predetermined luminance value
When brightness becomes to be above predetermined luminance value, illustrate part light detection area domain (the i.e. bottom of printer model lived originally by material wire cover
Face, because being lived by material wire cover, covering the brightness value that the light detection area domain of part detects will come relative to what is do not covered
Alice phenomenon secretly) has occurred.When alice phenomenon occurs for the bottom surface for detecting printer model, control system is stopped print head is controlled
Only continue discharging (being then specifically that extruder motor can be controlled by step actuator to realize), saves material to reach
Purpose.
In order to save power consumption, start the opportunity for detecting light variation also for preferably determining light sensor, certain
In embodiment, the control system includes sensor control circuit, and the sensor control circuit is for receiving print head
After the Z coordinate information change signal that positioning system issues, the light sensor in light detection area domain is opened；The Z coordinate information
Variable signal is the signal that print head is generated since transparency printing bottom position, when Z coordinate information changes for the first time.3D is beaten
The print procedure of print machine is successively to be printed, i.e. the print head first mobile printing completed in the plane in X-Y plane,
Print head Z coordinate information is adjusted again, and continues to print in the X-Y plane where the Z coordinate information in adjustment, Zhou Erfu
Begin, until model finally prints completion.This feature based on 3D printer, can be by print head from transparency printing bottom position
Mark of the signal start, generated when Z coordinate information changes for the first time as the bottom surface printing completion for the model for needing to print.
Sensor control circuit opens the light level below light detection area domain after the completion of the bottom surface for the model for needing to print prints
Device, and then whether the brightness value in light detection area domain is detected by secretly brightening, to judge the model to be printed by light sensor
Bottom surface alice phenomenon whether occurs.Through the above scheme, it can determine that light sensor starts to detect light variation well
Opportunity so that model bottom surface print after the completion of just start the detection for being made whether alice, be on the one hand less likely to occur to judge by accident,
On the other hand power consumption is also saved.
In order to further decrease power consumption, in certain embodiments, the control system further includes master controller, the master control
Device processed is used for when sensor control circuit receives the Z coordinate information change signal of printhead positioning system sending, according to beating
It prints head and obtains printer model footprint information in the motion track of transparency printing bottom plate, and opened by sensor control circuit
The light sensor in light detection area domain where printer model footprint information；The printer model footprint information is according to print head
It is determined in the X-coordinate information change situation and Y-coordinate information change situation of transparency printing bottom plate.In short, working as the bottom of model
After face determines, only need to open the light sensor below the light detection area domain that the bottom surface of model is covered in fact.It is right
Light sensor below the light detection area domain that the bottom surface of model does not cover, can choose and be not turned on, to reach saving
The purpose of power consumption.Such as the printer model bottom surface 201 in Fig. 2 is the triangle of dash area, then sensor control circuit only needs
Open the light sensor below the light detection area domain that the triangle is covered.
In certain embodiments, the light sensor is used to detect that the brightness value in light detection area domain is more than default
When brightness value, light variable signal is sent to control system.The light that control system is used to be transmitted according to light sensor changes
Signal includes: the light variation that control system is used to be transmitted according to light sensor to control the operation of the step actuator
Signal controls extruder motor by step actuator and stops working.Preferably, the 3D printer further includes prompt unit,
Control system is also used to stop working by step actuator control extruder motor, passes through the prompt unit and issues prompt
Information.The prompt information includes speech prompt information, picture cues information, visual prompts information, light cue information etc..It is logical
Crossing prompt information can inform that alice phenomenon has occurred in the bottom surface of user's "current" model, in order to avoid continuing waste material silk, printing
Machine has stopped continuing to discharge, so that user takes measures to solve.Such as formation part before can be scrapped mould by user
Type, which removes out, prints bottom plate, then resets the printing for opening a new round.
In actual application, it when the density in light detection area domain is larger, is tilted if the bottom surface of model is only pico-,
The whole printing of top model is not interfered with, whereas if the bottom surface of model obviously tilts, continues printing and then very may be used
Entire printer model can be caused to scrap, it is contemplated that the two situation, in certain embodiments, the control system are also used to judge
Whether the light sensor quantity of transmission ray variable signal is more than preset quantity, is squeezed out if then being controlled by step actuator
Electromechanical machine stops working, and does not otherwise control extruder motor by step actuator and stops working.In short, the variation that emits beam
Light sensor below a certain light detection area domain of signal instruction, detects and is covered on the one of the model bottom surface in the light detection area domain
Part tilts, and if the light sensor quantity of transmission ray variable signal is more than preset quantity, illustrate mould at this time
The bottom surface of type, which has had, greatly to be tilted, and is needed to terminate print head at once and is continued discharging printing, in order to avoid cause to expect
A large amount of losses of silk, thus extruder motor will be controlled by step actuator and stopped working.
It should be noted that the above description is only an embodiment of the present invention, those skilled in the art once know this
The basic creative concept of invention, then additional changes and modifications can be made to these embodiments, so while herein
Through the various embodiments described above are described, but it is not intended to limit scope of patent protection of the invention, it is all to utilize the present invention
Equivalent structure or equivalent flow shift made by specification and accompanying drawing content is applied directly or indirectly in other relevant technologies
Field similarly includes within scope of patent protection of the invention.
Claims (6)
1. a kind of 3D printer, which is characterized in that including transparency printing bottom plate, MxN are provided on the transparency printing bottom plate
Light detection area domain is provided with a light sensor in each light detection area domain；The 3D printer further include:
Print head is set to above transparency printing bottom plate, for silk material to be fed to the extruder motor of heater, the extrusion
Electromechanical machine is stepper motor；
Printhead positioning system, for obtaining the co-ordinate position information of print head, the co-ordinate position information includes X-coordinate letter
Breath, Y-coordinate information, Z coordinate information；The X-coordinate and Y-coordinate information are that print head is projected to the coordinate letter of transparency printing bottom plate
Breath, Z coordinate information are elevation information of the print head relative to transparency printing bottom plate；
Step actuator is connected to the extruder motor and can control the operation of the extruder motor；
The variation for the co-ordinate position information that control system is used to be transmitted according to printhead positioning system and light sensor transmit
Light variable signal, to control the operation of the step actuator.
2. 3D printer as described in claim 1, which is characterized in that the control system includes sensor control circuit, institute
Sensor control circuit is stated to detect for after the Z coordinate information change signal for receiving printhead positioning system sending, opening light
Survey the light sensor in region；The Z coordinate information change signal be print head since transparency printing bottom position, for the first time
The signal that Z coordinate information generates when changing.
3. 3D printer as claimed in claim 2, which is characterized in that the control system further includes master controller, the master
Controller is used for when sensor control circuit receives the Z coordinate information change signal of printhead positioning system sending, according to
Print head obtains printer model footprint information in the motion track of transparency printing bottom plate, and is opened by sensor control circuit
Open the light sensor in the light detection area domain where printer model footprint information；The printer model footprint information is according to printing
Head is determined in the X-coordinate information change situation and Y-coordinate information change situation of transparency printing bottom plate.
4. 3D printer as claimed in claim 3, which is characterized in that the light sensor is for detecting light detection area
When brightness value in domain is more than predetermined luminance value, light variable signal is sent to control system；
Control system is used for the light variable signal transmitted according to light sensor, to control the operation packet of the step actuator
Include: control system is used for the light variable signal transmitted according to light sensor, controls extruder motor by step actuator
It stops working.
5. 3D printer as claimed in claim 4, which is characterized in that the control system is also used to judge that transmission ray changes
Whether the light sensor quantity of signal is more than preset quantity, if then controlling extruder motor by step actuator stops work
Make, otherwise extruder motor is not controlled by step actuator and stopped working.
6. 3D printer as claimed in claim 4, which is characterized in that the 3D printer further includes prompt unit, control system
System is also used to stop working by step actuator control extruder motor, passes through the prompt unit and issues prompt information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711288659.1A CN108000874B (en) | 2017-12-07 | 2017-12-07 | A kind of 3D printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711288659.1A CN108000874B (en) | 2017-12-07 | 2017-12-07 | A kind of 3D printer |
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| Publication Number | Publication Date |
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| CN108000874A CN108000874A (en) | 2018-05-08 |
| CN108000874B true CN108000874B (en) | 2019-11-29 |
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| CN201711288659.1A Active CN108000874B (en) | 2017-12-07 | 2017-12-07 | A kind of 3D printer |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115464881A (en) * | 2022-08-02 | 2022-12-13 | 深圳市纵维立方科技有限公司 | Printing progress display method and device, printing equipment and computer readable medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20170100386A (en) * | 2016-02-24 | 2017-09-04 | 경남대학교 산학협력단 | Three demension printer |
| WO2017163000A1 (en) * | 2016-03-23 | 2017-09-28 | Sony Interactive Entertainment Inc. | 3d printing system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170341300A1 (en) * | 2016-05-26 | 2017-11-30 | Wisconsin Alumni Research Foundation | Additive Manufacturing Process Continuous Reinforcement Fibers And High Fiber Volume Content |
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2017
- 2017-12-07 CN CN201711288659.1A patent/CN108000874B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20170100386A (en) * | 2016-02-24 | 2017-09-04 | 경남대학교 산학협력단 | Three demension printer |
| WO2017163000A1 (en) * | 2016-03-23 | 2017-09-28 | Sony Interactive Entertainment Inc. | 3d printing system |
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| CN108000874A (en) | 2018-05-08 |
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Address after: 350299 Room 302, block 3, underground area 1, Liancun, kuiqiao Road, Changle City, Fuzhou City, Fujian Province Applicant after: Xu Suxiang Address before: Jinghua No. 28 Fujian province 350001 Mizuki Gulou District of Fuzhou city software Road No. 5 building 301 room Applicant before: Xu Suxiang |
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Effective date of registration: 20221221 Address after: 276800 R&D Building No. 8, Electronic Information Industrial Park, Gaoxin 7th Road, Rizhao Hi tech Zone, Shandong Province 237, Xueyuan Road, Rizhao Hi tech Zone, Shandong Province Patentee after: Rizhao Xinrui Investment Promotion Development Co.,Ltd. Address before: 350299 Room 302, block 3, area 1 underground, Liancun, kuiqiao Road, Changle City, Fuzhou City, Fujian Province Patentee before: Xu Suxiang |
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