CN105751516A - 3D printer with power failure continuous printing function and printing method - Google Patents
3D printer with power failure continuous printing function and printing method Download PDFInfo
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- CN105751516A CN105751516A CN201610270546.8A CN201610270546A CN105751516A CN 105751516 A CN105751516 A CN 105751516A CN 201610270546 A CN201610270546 A CN 201610270546A CN 105751516 A CN105751516 A CN 105751516A
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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 invention provides a 3D printer with a power failure continuous printing function and a printing method.The 3D printer comprises a 3D printing actuator which comprises an extrusion head, the 3D printer further comprises a power failure monitoring control unit, a power failure data storage unit and an extrusion head heating module, when the power failure monitoring control unit monitors that power supply of the 3D printing actuator is broken off, power failure data are recorded to the power failure data storage unit, when the power supply of the 3D printing actuator is monitored to be recovered, whether power failure data are stored is detected, when corresponding power failure data are detected, the extrusion head is preheated, mechanical resetting is performed to the 3D printing actuator until the adhering part of the extrusion head and an unfinished printing module is melted, and printing is carried out.The preheated extrusion head is printed continuously, the extrusion head and the unfinished module are separated, and the printing module can be prevented from being pulled and damaged during continuous printing.
Description
Technical field
The present invention relates to 3D printer, particularly relate to a kind of 3D printer with controlling cashier power-cut-off contiuous printing function and Method of printing.
Background technology
It is short then several hours that FDM (FusedDepositionModeling, fused glass pellet) 3D printer prints the time that model expends, long then a couple of days.If there is power-off in print procedure because of accident, then interruption is printed by printer.If not taking continuous to play measure, then early stage is got to the even a greater part of model of half and can only be scrapped, thus causing wasting in a large number of consumptive material and time.
The production firm of existing part FDM3D printer launches research to solve the problems referred to above at present.But they mainly adopt the mode of plug-in stand-by power supply, and this has increased considerably hardware cost, volume undoubtedly and have impact on the attractive in appearance of complete machine.
Prior art such as Chinese patent open source literature CN103921446A discloses the method for 3D printer and the controlling cashier power-cut-off contiuous printing thereof with controlling cashier power-cut-off contiuous printing function, but the existing 3D printer with controlling cashier power-cut-off contiuous printing function there is problems in that
On the one hand, after printing midway power-off a period of time, extruder head cools down, it would be possible to be sticked together with the model being not fully complete.If this thing happens, adhesion part can be damaged during extruder head startup when next time prints and even whole model be uprooped.On the other hand, operator, when repaired by hand breakpoint vestige, by virtue of experience can only find the position of power-off, take time and effort with naked eyes.
Summary of the invention
Present invention is primarily targeted at and a kind of 3D printer with controlling cashier power-cut-off contiuous printing function and Method of printing are provided, effectively solve the problems referred to above of prior art.
For achieving the above object, the present invention is by the following technical solutions:
nullA kind of 3D printer with controlling cashier power-cut-off contiuous printing function，Especially FDM3D printer，Including 3D print execution mechanism，Described 3D print execution mechanism includes extruder head，Described 3D printer also includes power-off Monitoring and Controlling unit、Breakpoint data storage cell and extruder head heating module，Wherein said power-off Monitoring and Controlling unit is when monitoring the power failure of described 3D print execution mechanism，The breakpoint data of the 3D print out task of interruption be recorded described breakpoint data storage cell，Described power-off Monitoring and Controlling unit is when monitoring the service restoration of described 3D print execution mechanism，Detect whether described breakpoint data storage cell has stored breakpoint data，When corresponding breakpoint data having been detected，Control described extruder head heating module described extruder head is preheated，Until after described extruder head and the partial melting of the printer model adhesion being not fully complete，Described 3D print execution mechanism is performed mechanical return，Then automatically or when receive user's input confirm continuous play instruction，Call described breakpoint number to control described 3D print execution mechanism according to this and proceed the 3D print out task of last interruption.
Further:
Described breakpoint data storage cell includes the SPI-FLASH for storing breakpoint data, every time after starting to print, described power-off Monitoring and Controlling unit namely control in erasing SPI-FLASH original breakpoint number according to this just vacating space store the breakpoint data of shutdown transient next time.
Also include background backup unit, described power-off Monitoring and Controlling unit is when recorded described breakpoint data storage cell by described breakpoint data, also described breakpoint data are uploaded to described background backup unit to be backed-up, the extra control unit of described power-off Monitoring and Controlling unit or described background backup unit utilizes breakpoint data described in described background backup unit backup, the information of the breakpoint location of last printing is produced, in order to breakpoint location is manually repaired by operator to operator.
Described information sends after described 3D print execution mechanism has performed print out task.
Described power-off Monitoring and Controlling unit is when monitoring the service restoration of described 3D print execution mechanism and corresponding breakpoint data having been detected, monitoring users is that input validation is continuous to be played instruction or does not continue and play instruction, when cannot not listen to continuously play instruction, wipe the breakpoint data of described breakpoint data storage cell storage, and print according to new mimeograph documents.
A kind of 3D Method of printing using described 3D printer, comprises the following steps:
The breakpoint data of the 3D print out task of interruption, when monitoring the power failure of 3D print execution mechanism, be recorded breakpoint data storage cell by power-off Monitoring and Controlling unit；
Described power-off Monitoring and Controlling unit, when monitoring the service restoration of described 3D print execution mechanism, detects whether described breakpoint data storage cell has stored corresponding breakpoint data；
When described power-off Monitoring and Controlling unit has detected corresponding breakpoint data, control extruder head heating module extruder head is preheated, until after described extruder head and the partial melting of the printer model adhesion being not fully complete, described 3D print execution mechanism is performed mechanical return；
Automatically or when receive user's input confirm continuous play instruction, call described breakpoint number and control described 3D print execution mechanism according to this and proceed the last 3D print out task interrupted.
Described breakpoint data storage cell includes the SPI-FLASH for storing breakpoint data, every time after starting to print, described power-off Monitoring and Controlling unit namely control in erasing SPI-FLASH original breakpoint number according to this just vacating space store the breakpoint data of shutdown transient next time.
Described power-off Monitoring and Controlling unit is when recorded described breakpoint data storage cell by described breakpoint data, also described breakpoint data are uploaded to background backup unit to be backed-up, the extra control unit of described power-off Monitoring and Controlling unit or described background backup unit utilizes breakpoint data described in described background backup unit backup, the information of the breakpoint location of last printing is produced, in order to breakpoint location is manually repaired by operator to operator.
Described information sends after described 3D print execution mechanism has performed print out task.
Described power-off Monitoring and Controlling unit is when monitoring the service restoration of described 3D print execution mechanism and corresponding breakpoint data having been detected, monitoring users is that input validation is continuous to be played instruction or does not continue and play instruction, when cannot not listen to continuously play instruction, wipe the breakpoint data of described breakpoint data storage cell storage, and print according to new mimeograph documents.
Beneficial effects of the present invention:
The present invention proposes a kind of 3D printer with controlling cashier power-cut-off contiuous printing function, when monitoring the power failure of 3D print execution mechanism, breakpoint data be recorded breakpoint data storage cell, and when monitoring service restoration, if corresponding breakpoint data having been detected, first pass through extruder head heating module extruder head is preheated, until after extruder head and the partial melting of the printer model adhesion being not fully complete, again extruder head is separated from printer model, 3D print execution mechanism is performed mechanical return, then the 3D print out task of interruption last time just can be proceeded according to breakpoint data.The control program performing pre-thermal release link before controlling cashier power-cut-off contiuous printing can be incorporated in bottom firmware.Based on this design, by heating, extruder head is easily separated with the model being not fully complete, can avoid pulling printer model during continuous beating.
In preferred scheme, when breakpoint data be recorded breakpoint data storage cell, also breakpoint data are uploaded to backstage to be backed-up, utilize the breakpoint data of backup, the information of the breakpoint location that last time prints can be produced, in order to breakpoint location is manually repaired by operator to operator.Uploading the breakpoint data to data backstage for indicating de-energized before controlling cashier power-cut-off contiuous printing, corresponding control program can also be incorporated in bottom firmware.Based on this design, can carry out manually repairing the offer of breakpoint vestige for operator at the follow-up model to completing and guide accurately and reliably.
In preferred scheme, SPI-FLASH is adopted to store breakpoint data, and after starting printing, namely power-off Monitoring and Controlling unit controls original breakpoint data in erasing SPI-FLASH every time, to vacate the space storage of the breakpoint data of shutdown transient next time, the program controls flexibly, required memory space is little, can effectively reduce cost.
According to the present invention it is possible to coordinate the control of corresponding bottom software, construct a set of power supply and data management system that can store and print breakpoint data, substantially do not increase circuit cost, do not increase circuit volume completely, do not affect complete machine outward appearance completely.The 3D printer of the present invention, without external hanging hardware equipment, need only be included corresponding electric power management circuit on circuit main board in and can realize controlling cashier power-cut-off contiuous printing.
Accompanying drawing explanation
Fig. 1 is the hardware structure figure of the 3D printer of an embodiment of the present invention；
Fig. 2 is the flow chart that the 3D Method of printing of an embodiment of the present invention realizes controlling cashier power-cut-off contiuous printing.
Detailed description of the invention
Hereinafter embodiments of the present invention are elaborated.It is emphasized that the description below is merely exemplary, rather than in order to limit the scope of the present invention and application thereof.
nullConsult Fig. 1，In one embodiment，A kind of 3D printer with controlling cashier power-cut-off contiuous printing function，Especially FDM3D printer，Including 3D print execution mechanism，Described 3D print execution mechanism includes extruder head，Described 3D printer also includes power-off Monitoring and Controlling unit、Breakpoint data storage cell and extruder head heating module，Wherein said power-off Monitoring and Controlling unit is when monitoring the power failure of described 3D print execution mechanism，The breakpoint data of the 3D print out task of interruption be recorded described breakpoint data storage cell，Described power-off Monitoring and Controlling unit is when monitoring the service restoration of described 3D print execution mechanism，Detect whether described breakpoint data storage cell has stored breakpoint data，When corresponding breakpoint data having been detected，Control described extruder head heating module described extruder head is preheated，Until after described extruder head and the partial melting of the printer model adhesion being not fully complete，Again described 3D print execution mechanism is performed mechanical return，Then automatically or when receive user's input confirm continuous play instruction，Call described breakpoint number to control described 3D print execution mechanism according to this and proceed the 3D print out task of last interruption.
The computer heating control of extruder head can be preset heating-up temperature value and/or heat time heating time according to printed material, when detecting printer model and reaching the temperature value set or when have passed through setting heat time heating time under set temperature value, stops heating.Heating can also be controlled with judgement (including artificial judgment) according to the sensing of the melting state to printer model appropriate section.
In a preferred embodiment, described breakpoint data storage cell includes the SPI-FLASH for storing breakpoint data, every time after starting to print, described power-off Monitoring and Controlling unit namely control in erasing SPI-FLASH original breakpoint number according to this just vacating space store the breakpoint data of shutdown transient next time.
In a preferred embodiment, 3D printer is further equipped with background backup unit, described power-off Monitoring and Controlling unit is when recorded described breakpoint data storage cell by described breakpoint data, also described breakpoint data are uploaded to described background backup unit to be backed-up, the extra control unit of described power-off Monitoring and Controlling unit or described background backup unit utilizes breakpoint data described in described background backup unit backup, the information of the breakpoint location of last printing is produced, in order to breakpoint location is manually repaired by operator to operator.
In the typical case, the information of breakpoint location can (but not limited to) send after described 3D print execution mechanism has performed print out task.
In the embodiment of some, whether user Autonomous Control can also perform controlling cashier power-cut-off contiuous printing function.Wherein, described power-off Monitoring and Controlling unit is when monitoring the service restoration of described 3D print execution mechanism and corresponding breakpoint data having been detected, monitoring users is that input validation is continuous to be played instruction or does not continue and play instruction, when cannot not listen to continuously play instruction, wipe the breakpoint data of described breakpoint data storage cell storage, and print according to new mimeograph documents.
Consult Fig. 2, in one embodiment, a kind of 3D Method of printing using aforementioned 3D printer, comprise the following steps:
The breakpoint data of the 3D print out task of interruption, when monitoring the power failure of 3D print execution mechanism, be recorded breakpoint data storage cell by power-off Monitoring and Controlling unit；
Described power-off Monitoring and Controlling unit, when monitoring the service restoration of described 3D print execution mechanism, detects whether described breakpoint data storage cell has stored corresponding breakpoint data；
When described power-off Monitoring and Controlling unit has detected corresponding breakpoint data, control extruder head heating module extruder head is preheated, until after described extruder head and the partial melting of the printer model adhesion being not fully complete, described 3D print execution mechanism is performed mechanical return；
Automatically or when receive user's input confirm continuous play instruction, call described breakpoint number and control described 3D print execution mechanism according to this and proceed the last 3D print out task interrupted.
In a preferred embodiment, described breakpoint data storage cell includes the SPI-FLASH for storing breakpoint data, every time after starting to print, described power-off Monitoring and Controlling unit namely control in erasing SPI-FLASH original breakpoint number according to this just vacating space store the breakpoint data of shutdown transient next time.
In a preferred embodiment, described power-off Monitoring and Controlling unit is when recorded described breakpoint data storage cell by described breakpoint data, also described breakpoint data are uploaded to background backup unit to be backed-up, the extra control unit of described power-off Monitoring and Controlling unit or described background backup unit utilizes breakpoint data described in described background backup unit backup, the information of the breakpoint location of last printing is produced, in order to breakpoint location is manually repaired by operator to operator.
In the typical case, the information of breakpoint location can (but not limited to) send after 3D print execution mechanism has performed print out task.
In the embodiment of some, whether user Autonomous Control can also perform controlling cashier power-cut-off contiuous printing function.Described power-off Monitoring and Controlling unit is when monitoring the service restoration of described 3D print execution mechanism and corresponding breakpoint data having been detected, monitoring users is that input validation is continuous to be played instruction or does not continue and play instruction, when cannot not listen to continuously play instruction, wipe the breakpoint data of described breakpoint data storage cell storage, and print according to new mimeograph documents.
Specific embodiments of the invention and advantage thereof is further illustrated below in conjunction with accompanying drawing.
As it is shown in figure 1, power-off Monitoring and Controlling unit includes power detecting module and microcontroller, breakpoint data storage cell is SPI-FLASH.The input of power detecting module is plugged into 24V power supply, and outfan is plugged into a signal pin of microcontroller.When microcontroller monitors after 24V powers, i.e. data in erasing SPI-FLASH, thus vacating space storage power-off printing breakpoint data at that moment.If in print procedure, 24V power failure, then power detecting module notifies microcontroller at once.Microcontroller will cut out the driving of all power supply units by corresponding control signal.Breakpoint data will be stored to SPI-FLASH in a flash by microcontroller in this.
When second time powers on, microcontroller will read the breakpoint data in SPI-FLASH.
The first situation: when finding really to have breakpoint data in SPI-FLASH, then whether the control interface of printer can point out and continue to print；If user's choosing is, then microcontroller will find the breakpoint preserved last time in SPI-FLASH, and this breakpoint location is uploaded to background backup unit (or claiming data backstage) to back up.Meanwhile, start extruder head is heated, until extruder head be not fully complete the partial melting of model adhesion after, perform mechanical return, then, control extruder head and move to the mechanical location at this breakpoint place, and continue to print on this mechanical location, until terminating.If user selects no, then microcontroller is by the data in erasing SPI-FLASH, reselects mimeograph documents and prints.
The second situation: when finding not store breakpoint data in SPI-FLASH, then illustrate that the last time uses the situation not occurring abnormal power-down during machine, directly reselect certain mimeograph documents and print.
The flow process of whole process is as shown in Figure 2.
Example
Print certain head portrait file, always 30 hours consuming time.When progress bar is shown as 90%, have a power failure suddenly, cause printing and interrupt.This situation is found after when operator 4 is little.Now sending a telegram here, this head portrait also differs from a skull and has not beaten, and the UI of printer displays whether continuing last time prints.
Operator selects to continue to print last time.Now, extruder head begins to warm up, can with the model separation being not fully complete until being heated to extruder head, and motor drive module drives three spindle motor motions, carries out mechanical return.Extruder head then continues to heating, and the hott bed heating module of printer also begins to heating, until after both of which is heated to assigned temperature, the breakpoint of printing last time found by microcontroller in SPI-FLAH.And this breakpoint is mapped to the relevant position in gcode file.Printer will print from the breakpoint succession of last time, until whole head portrait has printed.
After printing completes, breakpoint according to data backstage by the breakpoint location suggested by touch screen, manually can be repaired by operator with instruments such as heat guns.
Above content is to combine concrete/preferred embodiment further description made for the present invention, it is impossible to assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; these embodiments having described that can also be made some replacements or modification by it, and these substitute or variant all should be considered as belonging to protection scope of the present invention.
Claims (10)
- null1. the 3D printer with controlling cashier power-cut-off contiuous printing function，Especially FDM3D printer，Including 3D print execution mechanism，Described 3D print execution mechanism includes extruder head，It is characterized in that,Described 3D printer also includes power-off Monitoring and Controlling unit、Breakpoint data storage cell and extruder head heating module，Wherein said power-off Monitoring and Controlling unit is when monitoring the power failure of described 3D print execution mechanism，The breakpoint data of the 3D print out task of interruption be recorded described breakpoint data storage cell，Described power-off Monitoring and Controlling unit is when monitoring the service restoration of described 3D print execution mechanism，Detect whether described breakpoint data storage cell has stored breakpoint data，When corresponding breakpoint data having been detected，Control described extruder head heating module described extruder head is preheated，Until after described extruder head and the partial melting of the printer model adhesion being not fully complete，Described 3D print execution mechanism is performed mechanical return，Then automatically or when receive user's input confirm continuous play instruction，Call described breakpoint number to control described 3D print execution mechanism according to this and proceed the 3D print out task of last interruption.
- 2. 3D printer as claimed in claim 1, it is characterized in that, described breakpoint data storage cell includes the SPI-FLASH for storing breakpoint data, every time after starting to print, described power-off Monitoring and Controlling unit namely control in erasing SPI-FLASH original breakpoint number according to this just vacating space store the breakpoint data of shutdown transient next time.
- 3. 3D printer as claimed in claim 1 or 2, it is characterized in that, also include background backup unit, described power-off Monitoring and Controlling unit is when recorded described breakpoint data storage cell by described breakpoint data, also described breakpoint data are uploaded to described background backup unit to be backed-up, the extra control unit of described power-off Monitoring and Controlling unit or described background backup unit utilizes breakpoint data described in described background backup unit backup, the information of the breakpoint location of last printing is produced, in order to breakpoint location is manually repaired by operator to operator.
- 4. 3D printer as claimed in claim 3, it is characterised in that described information sends after described 3D print execution mechanism has performed print out task.
- 5. 3D printer as claimed in claim 1 or 2, it is characterized in that, described power-off Monitoring and Controlling unit is when monitoring the service restoration of described 3D print execution mechanism and corresponding breakpoint data having been detected, monitoring users is that input validation is continuous to be played instruction or does not continue and play instruction, when cannot not listen to continuously play instruction, wipe the breakpoint data of described breakpoint data storage cell storage, and print according to new mimeograph documents.
- 6. the 3D Method of printing of the 3D printer that a kind uses described in claim 1, it is characterised in that comprise the following steps:The breakpoint data of the 3D print out task of interruption, when monitoring the power failure of 3D print execution mechanism, be recorded breakpoint data storage cell by power-off Monitoring and Controlling unit；Described power-off Monitoring and Controlling unit, when monitoring the service restoration of described 3D print execution mechanism, detects whether described breakpoint data storage cell has stored corresponding breakpoint data；When described power-off Monitoring and Controlling unit has detected corresponding breakpoint data, control extruder head heating module extruder head is preheated, until after described extruder head and the partial melting of the printer model adhesion being not fully complete, described 3D print execution mechanism is performed mechanical return；Automatically or when receive user's input confirm continuous play instruction, call described breakpoint number and control described 3D print execution mechanism according to this and proceed the last 3D print out task interrupted.
- 7. 3D Method of printing as claimed in claim 6, it is characterized in that, described breakpoint data storage cell includes the SPI-FLASH for storing breakpoint data, every time after starting to print, described power-off Monitoring and Controlling unit namely control in erasing SPI-FLASH original breakpoint number according to this just vacating space store the breakpoint data of shutdown transient next time.
- 8. 3D Method of printing as claimed in claims 6 or 7, it is characterized in that, described power-off Monitoring and Controlling unit is when recorded described breakpoint data storage cell by described breakpoint data, also described breakpoint data are uploaded to background backup unit to be backed-up, the extra control unit of described power-off Monitoring and Controlling unit or described background backup unit utilizes breakpoint data described in described background backup unit backup, the information of the breakpoint location of last printing is produced, in order to breakpoint location is manually repaired by operator to operator.
- 9. 3D printer as claimed in claim 8, it is characterised in that described information sends after described 3D print execution mechanism has performed print out task.
- 10. 3D printer as claimed in claims 6 or 7, it is characterized in that, described power-off Monitoring and Controlling unit is when monitoring the service restoration of described 3D print execution mechanism and corresponding breakpoint data having been detected, monitoring users is that input validation is continuous to be played instruction or does not continue and play instruction, when cannot not listen to continuously play instruction, wipe the breakpoint data of described breakpoint data storage cell storage, and print according to new mimeograph documents.
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| CN109532027A (en) * | 2018-12-26 | 2019-03-29 | 深圳市越疆科技有限公司 | 3D printer soft-off control circuit and 3D printing equipment |
| CN110039767A (en) * | 2019-05-29 | 2019-07-23 | 重庆八棱科技有限公司 | The continuous control system and method beaten of fusion stacking molding 3D printer power-off restoration |
| CN110039767B (en) * | 2019-05-29 | 2021-07-20 | 重庆八棱科技有限公司 | Control system and method for power-off reset continuous printing of fused laminated forming 3D printer |
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