阅读说明：本技术 一种测试3d打印树脂最佳曝光时间的方法 (A method of test 3D printing resin optimum exposure time ) 是由 欧阳欣 周承立 邓新桥 王小军 于 2019-09-05 设计创作，主要内容包括：一种测试3D打印树脂最佳曝光时间的方法,包括：将光固化3D打印机的显示设备分成多个显示区域,分别用于显示多个打印物模型的切片图像；设置每个显示区域内切片图像的曝光时间；以及根据所述的曝光时间,通过所述光固化3D打印机的控制设备控制所述显示区域的图像显示。本发明的测试方法,可以通过一次性打印多个打印物的方法,来快速获取3D打印树脂的最佳曝光时间,极大地缩短了测试时间,提升了用户体验。(A method of test 3D printing resin optimum exposure time, comprising: the display equipment of photocuring 3D printer is divided into multiple display areas, is respectively used to show the sectioning image of multiple printed matter models；The time for exposure of sectioning image in each display area is set；And it according to the time for exposure, is shown by the image that the control equipment of the photocuring 3D printer controls the display area.Test method of the invention, can method by disposably printing multiple printed matters, carry out the optimum exposure time of quick obtaining 3D printing resin, highly shortened the testing time, the user experience is improved.)

1. a kind of method for testing 3D printing resin optimum exposure time characterized by comprising

The display equipment of 3D printer is divided into multiple display areas, is respectively used to show the slice map of multiple printed matter models Picture；

The time for exposure of sectioning image in each display area is set；And

In print procedure, according to the set time for exposure, institute is controlled by the control equipment of the photocuring 3D printer The image for stating display area is shown.

2. the method according to claim 1, wherein further include:

Establish a printed matter model, and replicate it is multiple, to obtain the multiple printed matter model；And

Arrange the multiple printed matter model position so that it respectively corresponds the multiple display area.

3. the method according to claim 1, wherein further include:

Establish a printed matter model, and replicate it is multiple, to obtain the multiple printed matter model；

Successively the multiple printed matter model is arranged and is numbered；And

Arrange the multiple printed matter model position so that it respectively corresponds the multiple display area.

4. according to the method described in claim 3, it is characterized by further comprising:

The number is associated with one by one with the time for exposure by the control equipment.

5. the method according to claim 1, wherein further include:

As a whole by the multiple printed matter model, it is sliced.

6. the method according to claim 1, wherein the exposure that sectioning image in each display area is arranged Time includes:

First printed matter model is randomly choosed, and its time for exposure is set as Minimum Exposure Time；And

It randomly chooses next printed matter model, and its time for exposure is set as time for exposure of a upper printed matter model and pre- If the sum of time interval, until the time for exposure of whole printed matter models, setting completed.

7. according to the method described in claim 6, it is characterized in that, the Minimum Exposure Time is 0.1-10s, when described default Between between be divided into 0.1-2s.

8. the method according to claim 1, wherein described in print procedure, when according to set exposure Between, it is shown by the image that the control equipment of the photocuring 3D printer controls the display area and includes:

When the current exposure time of the sectioning image in the display area is less than or equal to the time for exposure of setting, the control Equipment controls the display area light transmission；And

When the current exposure time of the sectioning image in the display area is greater than the time for exposure of setting, the control equipment control It is opaque to make the display area.

9. a kind of photocuring 3D printer, including light source assembly, the display equipment for allowing the light source to penetrate, resin pool group Part, printed matter support component and control equipment, which is characterized in that the photocuring 3D printer executes such as claim 1-8 Described in any item methods.

Technical field

The present invention relates to photocuring 3D printing technique fields more particularly to a kind of test photocuring 3D printing resin most preferably to expose Method between light time.

Background technique

Photocuring 3D printing technique is mainly material using photosensitive resin, is irradiated by ultraviolet light or other light sources Make the layer-by-layer curing molding of photosensitive resin, finally obtains complete product.Its specific formed precision is high, and molding rear surface effect is good Advantage meets the application of the various fields such as aerospace, building, medical treatment, mold manufacture.

For the photocuring 3D printer of different manufacturers design, or for different photosensitive resins, photosensitive resin is most The good time for exposure is different.The optimum exposure time of resin is one of the important parameter of photocuring 3D printer, is affected into The printing precision and mechanical performance of type part.Therefore, it before carrying out photocuring 3D printing, tests and determines the best of photosensitive resin Time for exposure is particularly important.

In the prior art, the optimum exposure time of photosensitive resin mainly passes through and constantly modifies the time for exposure, prints The same model, until finding the suitable time for exposure.

As 107283846 A of Chinese patent application CN discloses the test method of 3D printing resin time for exposure.Same One group of test model and Matching Model are printed under time for exposure, and the test model and Matching Model that print are matched. Correspondingly, so circulation prints multiple groups test model and Matching Model, and the survey to same group under the different time for exposure Die trial type and Matching Model are matched, and the exposure time range of resin is determined according to matching degree.

Above-mentioned patent is also that the time for exposure is constantly modified by way of circulation, prints multiple groups test model and matching mould Type, so that it is determined that optimum exposure time.

Above-mentioned optimum exposure time test method, it usually needs expending long time just can determine that some photocuring The optimum exposure time of a certain resin in 3D printer.If replacing resin, need to expend long time again to determine The optimum exposure time for the resin newly replaced.

Summary of the invention

In view of the problems of the existing technology, the present embodiments relate to a kind of test 3D printing resin optimum exposure times Method, comprising: the display equipment of photocuring 3D printer is divided into multiple display areas, is respectively used to show multiple printed matters The sectioning image of model；The time for exposure of sectioning image in each display area is set；And in print procedure, according to set The time for exposure set is shown by the image that the control equipment of the photocuring 3D printer controls the display area.

Preferably, the method further include: establish a printed matter model, and replicate it is multiple, to obtain described more A printed matter model；And the position of the multiple printed matter model of arrangement is so that it respectively corresponds the multiple display area.

Preferably, the method further include: establish a printed matter model, and replicate it is multiple, to obtain described more A printed matter model；It is arranged in the multiple printed matter model and numbers；And the position of the multiple printed matter model of arrangement with It is set to respectively correspond the multiple display area.

Preferably, the method further include: numbered with the time for exposure one by one by the control equipment by described Association.

Preferably, the method further include: as a whole by the multiple printed matter model, be sliced.

Preferably, the time for exposure of sectioning image includes: that random selection first is beaten in each display area of setting Object model is printed, and its time for exposure is set as Minimum Exposure Time；And the next printed matter model of random selection, and exposed The sum of time for exposure and the prefixed time interval of a printed matter model are set as between light time, until the exposure of whole printed matter models Setting completed between light time.

Preferably, the Minimum Exposure Time is 0.1-10s, and the prefixed time interval is 0.1-2s.

Preferably, described in print procedure, according to the set time for exposure, pass through the photocuring 3D printer The image that control equipment controls the display area shows to include: current exposure time when the sectioning image in the display area Less than or equal to setting time for exposure when, the control equipment controls the display area light transmission；And when in the display area Sectioning image current exposure time be greater than setting time for exposure when, it is impermeable that the control equipment controls the display area Light.

On the other hand, the invention further relates to a kind of photocuring 3D printer, including light source assembly, for allowing the light source The display equipment of transmission, resin pool component, printed matter support component and control equipment, on the photocuring 3D printer executes State any one method.

Method and apparatus of the present invention has the following beneficial effects:

1. by that will show that equipment is divided into multiple display areas, then controls the saturating of each display area by controller Between light time, multiple printed matters can be printed on a photocuring 3D printer.And the time for exposure of each printed matter is different, According to the print quality of each printed matter, the optimum exposure time of resin can be determined by once printing.

2. by the way that multiple printed matters are sliced as a whole, without changing the original slice mode of printer, The method of the test optimum exposure time can be adapted for the photocuring 3D printer of any slicing mode, any type.

3. with number on the 3D object printed, and being established by the way that multiple printed matter models are numbered The relationship of number and time for exposure, when can intuitively get the exposure of each model by the number on the 3D object of printing Between and optimum exposure time.

Detailed description of the invention

Fig. 1 is the method flow diagram of first embodiment test 3D printing resin optimum exposure time；

Fig. 2 is second embodiment photocuring 3D printer structural schematic diagram；

Fig. 3 is 3rd embodiment display device structure schematic diagram；

Fig. 4 A-4H is to show that certain layer of sectioning image that equipment is shown changes with time schematic diagram.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description.

Usually, term used in this patent has the conventional sense of this field.Unless expressly stated, in this patent The conventional sense that there are all scientific and technical terms one of ordinary skill in the art to be understood.It should be understood that the same things can It can be described, therefore may be described using near synonym or mapping language in this patent same with different mode or language Things, this has no effect on the protection scope of this patent.

Usually, the ordinal numbers such as " first ", " next ", " upper one " be for by multiple various component, assembly units, Module, unit or region etc. are distinguished from each other.Therefore, the ordinal numbers such as " first ", " next ", " upper one " are not to use Carry out the quantity in restriction element, component, module, unit or region etc..And, for example, ordinal number " first " can use ordinal number Word " second ", " third " or other similar ordinal number replace.

In this patent, the words such as "include", "comprise", " having ", " having ", " being equipped with ", these words may be used It is construed as open range, that is, includes but is not limited to.

Usually, " multiple " refer to two or more.

The method for testing optimum exposure time

Fig. 1 shows a kind of method for testing 3D printing resin optimum exposure time, can be applied to photocuring shown in Fig. 2 3D printer.It should be understood that this method can be applied to all carry out curing molding to 3D printing resin using photocuring principle 3D printer.

In existing 3D printing technique, the control to display equipment is all by the way of integrally controlling.And this method Core ideas be that subregion control is carried out to display equipment, it is different that realization prints multiple time for exposure in a print procedure Model.This method has broken the routine techniques theory in 3D printing technique, the optimum exposure time of energy quick obtaining resin.

In order to make it easy to understand, it is best that the test 3D printing resin will be discussed in detail by taking photocuring 3D printer as an example below The method of time for exposure.

As shown in Fig. 2, photocuring 3D printer generally includes: for generating the light source assembly of the light source of irradiation resin 31 10, the display equipment 20 for allowing light source to penetrate is used to support printed matter 60 for containing the resin pool component 30 of resin 31 Support component 40 and for control light source assembly 10, display equipment 20, the control equipment 50 of support component 40.

Control equipment 50 can control the light on and off of the optical power, light application time, LED of light source assembly 10.Control equipment 50 may be used also It is moved up and down with controlling support component 40 along the direction of arrow A shown in Fig. 2.Control equipment 50 can also show equipment 20 Light on and off are penetrated with the light for allowing or preventing light source assembly 10 to generate.

In conjunction with Fig. 2, the method for above-mentioned test 3D printing resin optimum exposure time is specifically included:

The display equipment of photocuring 3D printer is divided into multiple display areas, is respectively used to show multiple beat by step S01 Print the sectioning image of object model.

As shown in figure 3, display equipment 20 can be divided into multiple according to the size of single printed matter model and display equipment Display area, such as 2, it is 3,4,5,6,7,8,9,10, even more, it is not intended to limit herein.In In the present embodiment, display equipment 20 is divided into 8 display areas, shows the sectioning image of 8 printed matter models 60 respectively.

Further, in some embodiments of the invention, the method for above-mentioned test 3D printing resin optimum exposure time Further include: establish a printed matter model, and be copied into it is multiple, to obtain the multiple printed matter model；And arrangement institute The position of multiple printed matter models is stated so that it respectively corresponds the multiple display area.

In other embodiments of the invention, the multiple printed matter model can also not exclusively, herein not Limitation.Foundation, duplication and the arrangement of printed matter model can by software or control equipment be automatically performed, can also by user according to Actual needs manually completes.

Further, in other embodiments of the invention, the side of above-mentioned test 3D printing resin optimum exposure time Method further include: establish a printed matter model, and replicate it is multiple, to obtain the multiple printed matter model；The multiple Printed matter model setting number；And the position of the multiple printed matter model of arrangement is so that it respectively corresponds the multiple display Region.

As shown in figure 3, number 01-08 can be respectively set on 8 printed matter models 60, when this 8 printed matter models 60 when print, and has just carried number on printed matter model 60.In this way, user can intuitively distinguish very much it is each Printed matter model 60.It should be understood that the multiple printed matter model can also be not exclusively not intended to limit herein.Printed matter mould Foundation, duplication and the arrangement of type can be automatically performed by software or control equipment, can also be manual according to actual needs by user It completes.

Further, in some embodiments of the invention, the method for above-mentioned test 3D printing resin optimum exposure time Further include: the number is associated with one by one with the time for exposure by the control equipment.For example, can be 01 by number The time for exposure of printed matter model 60 is set as minimum, with being incremented by for number, gradually increases the time for exposure according to preset rules.This Sample user is known that the time for exposure of the printed matter model when seeing the number of printed matter model 60.

Further, in some embodiments of the invention, the method for above-mentioned test 3D printing resin optimum exposure time Further include: as a whole by the multiple printed matter model, it is sliced, obtains mimeograph documents.When the multiple printing After object model 60 establishes, these printed matter models are considered as an entirety and are sliced by Slice Software, obtain mimeograph documents, so This whole each layer sectioning image is shown in the display equipment 20 in print procedure afterwards.

The time for exposure of sectioning image in each display area is arranged in step S02.

Specifically, for the optimum exposure time of quick obtaining 3D printing resin, by sectioning image in each display area Time for exposure be set as the different time.

In some embodiments of the invention, the time for exposure of sectioning image includes: in each display area of setting First printed matter model is randomly choosed, and its time for exposure is set as Minimum Exposure Time；And randomly choose next beat Object model is printed, and its time for exposure is set as to the sum of time for exposure and the prefixed time interval of a upper printed matter model, until The time for exposure of whole printed matter models, setting completed.For example, as shown in connection with fig. 3, can choose the printed matter model of number 01 60 are used as first printed matter model, and its time for exposure is set as Minimum Exposure Time T0.Then second printed matter is selected Model, such as the printed matter model of number 02, are set as T0+t for its time for exposure, and wherein t is prefixed time interval.Fetch lower choosing Third printed matter model, such as the printed matter model of number 03 are selected, its time for exposure is set as T0+2t.And so on, selection N-th of printed matter model, wherein n is positive integer, and the time for exposure is T0+ (n-1) * t.For example, the 8th, that is, last The time for exposure of a printed matter model is T0+7t.It should be understood that those skilled in the art can also be arranged respectively using other rules The time for exposure of a printed matter model, as long as ensuring that the time for exposure of each printed matter model is not exactly the same, herein simultaneously It does not limit.

Further, in some embodiments of the invention, the Minimum Exposure Time is 0.1-10s, when described default Between between be divided into 0.1-2s.For example, the Minimum Exposure Time T0 can be 0.1s, 0.2s, 0.3s, 0.4s, 0.5s, 0.6s, 0.7s, 0.8s, 0.9s, 1s, 2s, 3s, 4s, 5s, 6s, 7s, 8s, 9s or 10s, or any number in 0.1-10s, In This is not intended to limit.The prefixed time interval t can be 0.1s, 0.2s, 0.3s, 0.4s, 0.5s, 0.6s, 0.7s, 0.8s, 0.9s, 1s, 1.1s, 1.2s, 1.3s, 1.4s, 1.5s, 1.6s, 1.7s, 1.8s, 1.9s or 2s, or appointing in 0.1-2s Meaning numerical value, is not intended to limit herein.In addition the time for exposure that the 3D printing resin of different characteristics needs will be different, in practical behaviour The 3D printing resin according to different characteristics is understood in work to set different Minimum Exposure Time and prefixed time interval, such as some 3D printing resin inherently needs the shorter time for exposure to carry out curing molding, then just select lesser numerical value, and need compared with The 3D printing resin of long-time curing molding just selects slightly bigger numerical value.A printed matter mould is established here in connection with above-mentioned Type, and be copied into it is multiple, to obtain multiple printed matter models, when obtaining more printed matter models simultaneously, such as 10 Or 20, so that it may smaller numerical value be selected to time interval therein as needed, carrying out printed matter model effect in this way Fruit ratio to when it is just finer, so as to preferably determine the printing effect better time for exposure.

Step S03, according to the set time for exposure, passes through the control of the photocuring 3D printer in print procedure The image that control equipment controls the display area is shown.

Specifically, described in print procedure, according to the set time for exposure, set by the control of the 3D printer The standby image for controlling the display area, which is shown, includes:

It is described when the current exposure time of the sectioning image in the display area is less than or equal to the time for exposure of setting Control equipment controls the display area light transmission；And

When the current exposure time of the sectioning image in the display area is greater than the time for exposure of setting, the control is set Standby control display area is opaque.

For example, in conjunction with Fig. 4 A-4H, it is assumed that the Minimum Exposure Time T0 is 4s, and the prefixed time interval t is 0.5s, The time for exposure of sectioning image on so the 1st display area is 4s, when the exposure of the sectioning image on the 2nd display area Between be 4.5s, the time for exposure of the sectioning image on the 3rd display area is 5s, the sectioning image on the 4th display area Time for exposure is 5.5s, and the time for exposure of the sectioning image on the 5th display area is 6s, the slice on the 6th display area The time for exposure of image is 6.5s, and the time for exposure of the sectioning image on the 7th display area is 7s, on the 8th display area Sectioning image time for exposure be 7.5s.

Fig. 4 A indicates that 0-4s shows the sectioning image shown in equipment 20, and during this period of time, 8 printed matter models are equal Exposure.Fig. 4 B indicates that 4-4.5s shows the sectioning image that shows in equipment 20, during this period of time, control equipment 50 control the 1 display area is opaque, does not show any sectioning image.Fig. 4 C indicates that 4.5-5s shows the slice map shown in equipment 20 Picture, during this period of time, the 1st and the 2nd display area of the control control of equipment 50 are opaque, do not show any sectioning image.Figure 4D indicates that 5-5.5s shows the sectioning image shown in equipment 20, and during this period of time, it is a aobvious that control equipment 50 controls 1-3 Show that region is opaque, does not show any sectioning image.Fig. 4 E indicates that 5.5-6s shows the sectioning image shown in equipment 20, In In the period, the 1-4 display area of the control control of equipment 50 is opaque, does not show any sectioning image.Fig. 4 F indicates the 6-6.5s shows the sectioning image shown in equipment 20, and during this period of time, control equipment 50 controls the 1-5 display area not Light transmission does not show any sectioning image.Fig. 4 G indicates that 6.5-7s shows the sectioning image shown in equipment 20, in the period Interior, the 1-6 display area of the control control of equipment 50 is opaque, does not show any sectioning image.Fig. 4 H indicates that 7-7.5s is aobvious Show the sectioning image shown in equipment 20, during this period of time, the 1-7 display area of the control control of equipment 50 is opaque, no Show any sectioning image.Next after 7.5s, display equipment 20 starts to show next layer of sectioning image.

After completing whole print routines, user can compare the print quality of this edition multiple printed matter models, choosing The wherein best printed matter model of print quality out, when its time for exposure being then determined as the optimum exposure of 3D printing resin Between.

The present invention will be by that will show that equipment is divided into multiple display areas, then controls each display area by controller The light transmission time, so that it may print multiple printed matters on a photocuring 3D printer.And when the exposure of each printed matter Between it is different, according to the print quality of each printed matter, so that it may determine the optimum exposure time of resin by once printing.

Multiple printed matters by being sliced by the present invention as a whole, without changing the original slice side of printer Formula, therefore the method for the test optimum exposure time can be adapted for the photocuring 3D printing of any slicing mode, any type Machine.

The present invention with number on the 3D object printed, and is built by the way that multiple printed matter models are numbered Number and the relationship of time for exposure have been found, it thus can be by the number watched on the 3D object printed very intuitively Get time for exposure and the optimum exposure time of each model.

Photocuring 3D printer

As shown in Fig. 2, the present invention also provides a kind of 3D printer, for executing test 3D printing tree set out above The method of rouge optimum exposure time.

The core design thinking of this photocuring 3D printer is to carry out subregion control to display equipment, and realization is once being beaten Print prints different model of multiple time for exposure in the process.The mentality of designing has broken the reason of the routine techniques in 3D printing technique It reads, the optimum exposure time of energy quick obtaining resin.

Photocuring 3D printer includes: the light source assembly 10 for generating the light source of irradiation resin 31, for allowing light source The display equipment 20 of transmission, for containing the resin pool component 30 of resin 31, be used to support the support component 40 of printed matter 60 with And for controlling light source assembly 10, display equipment 20, the control equipment 50 of support component 40.

Control equipment 50 can control the light on and off of the optical power, light application time, LED of light source assembly 10.Control equipment 50 may be used also It is moved up and down with controlling support component 40 along the direction of arrow A shown in Fig. 2.Control equipment 50 can also show equipment 20 Light on and off are penetrated with the light for allowing or preventing light source assembly 10 to generate.

The photocuring 3D printer tests the specific method of 3D printing resin optimum exposure time as shown in Figure 1, it is specific It is elaborated in the content that step has been described above, is not repeated herein.

The method of the specific test 3D printing resin optimum exposure time of this photocuring 3D printer and acquired beneficial Effect is described in detail in foregoing, and details are not described herein.Those skilled in the art according to retouching above It states, can most clearly grasp the working principle and embodiment of this photocuring 3D printer.

Foregoing description is related to various modules.The combination that these modules generally include hardware and/or hardware and software is (such as solid Change software).These modules can also include the computer-readable medium comprising instruction (for example, software instruction) (for example, permanent Medium), when processor executes these instructions, so that it may execute various functional characteristics of the invention.Correspondingly, except non-clearly It is required that the scope of the present invention not by the module specifically mentioned in embodiment specific hardware and/or software feature limited.Make For non-limitative example, the present invention in embodiment can be by one or more processors (such as microprocessor, digital signal Reason device, baseband processor, microcontroller) execution software instruction (such as it is stored in non-volatile memory and/or permanent storage Device).In addition, the present invention can also be executed with specific integrated circuit (ASIC) and/or other hardware elements.It should be pointed out that Above in the description of various modules, these modules are divided into, are for clarity.However, in actual implementation, various moulds The boundary of block can be fuzzy.For example, any or all functionalities module herein can share various hardware and/or soft Part element.In another example any and/or all functional modules herein can be executed software instruction by shared processor complete Portion or part are implemented.In addition, the various software submodules being performed by one or more processors can be between various software modules It is shared.Correspondingly, unless explicitly requested, the scope of the present invention not mandatory boundary between by various hardware and/or software element Limitation.

Above disclosed is only a preferred embodiment of the present invention, cannot limit the power of the present invention with this certainly Sharp range, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and weighs according to the present invention Benefit requires made equivalent variations, still belongs to the scope covered by the invention.