阅读说明：本技术 一种多功能光固化3d打印设备及其打印方法 (Multifunctional photocuring 3D printing equipment and printing method thereof ) 是由 阮兆辉 周梅 丁锐杰 陈缔 褚祥诚 于 2020-12-18 设计创作，主要内容包括：本发明提供了一种多功能光固化3D打印设备,包括光学引擎、反光片、箱体、倒置式光固化模块和正置式光固化模块,所述光学引擎、倒置式光固化模块和正置式光固化模块均设置于所述箱体内,所述反光镜可调节地设置于所述箱体内,所述倒置式光固化模块设置于所述箱体上部,所述正置式光固化模块设置于所述箱体下部,所述光学引擎和所述反光片设置于所述正置式光固化模块和所述倒置式光固化模块之间,上述方案中,在光固化3D打印设备中同时加入倒置式光固化模块和正置式光固化模块,可以根据实际需要充分利用两种不同打印方式的优点,在一台机上根据模型需要实现最优的打印方案,这样大大提升了设备的使用价值和功能性,实现3D打印机的多功能化。(The invention provides multifunctional photocuring 3D printing equipment which comprises an optical engine, a reflector, a box body, an inverted photocuring module and an upright photocuring module, wherein the optical engine, the inverted photocuring module and the upright photocuring module are all arranged in the box body, a reflector is adjustably arranged in the box body, the inverted photocuring module is arranged at the upper part of the box body, the upright photocuring module is arranged at the lower part of the box body, the optical engine and the reflector are arranged between the upright photocuring module and the inverted photocuring module, in the scheme, the inverted photocuring module and the upright photocuring module are simultaneously added into the photocuring 3D printing equipment, the advantages of two different printing modes can be fully utilized according to actual needs, and the optimal printing scheme is realized on one machine according to model needs, the use value and the functionality of equipment have been promoted like this greatly, realize the multi-functionalization of 3D printer.)

1. The utility model provides a multi-functional photocuring 3D printing apparatus, its characterized in that, includes optical engine, reflector panel, box, inversion formula photocuring module and forward formula photocuring module, optical engine, inversion formula photocuring module and forward formula photocuring module all set up in the box, the reflector adjustably set up in the box, inversion formula photocuring module set up in box upper portion, forward formula photocuring module set up in the box lower part, optical engine with the reflector panel set up in forward formula photocuring module with between the inversion formula photocuring module.

2. The multifunctional photocuring 3D printing device according to claim 1, wherein the inverted photocuring module comprises a first forming platform, a material box, a first scraper, a lifting unit and a first scraper transmission unit, a first mounting frame is arranged on the upper portion of the box body, the lifting unit is fixed to the first mounting frame, the first forming platform is movably connected with the lifting unit, the first scraper transmission unit is fixed to the first mounting frame, the first scraper is arranged on the first scraper transmission unit, and the material box is fixed to the upper end of the first mounting plate.

3. The multifunctional photocuring 3D printing device according to claim 1, wherein the upright photocuring module comprises a second forming platform, a material cylinder, a second scraper, a descending unit and a second scraper transmission unit, a second mounting frame is arranged at the lower part of the box body, the descending unit is fixed to the second mounting frame, the second forming platform is movably connected with the descending unit, the second scraper transmission unit is fixed to the second mounting frame, the second scraper is arranged on the second scraper transmission unit, and the material cylinder is fixed to the lower end of the second mounting plate.

4. The multifunctional photocuring 3D printing device of claim 2, wherein the lifting unit comprises a lifting screw and a first driving motor, the lifting screw is fixed to the first mounting frame, the first forming platform is movably connected with the lifting screw, and the first driving motor is connected with the lifting screw.

5. The multifunctional photocuring 3D printing device according to claim 2, wherein the first scraper transmission unit comprises a first screw mounting frame, a first scraper driving screw, a first scraper driving motor and a first scraper mounting seat, the first screw mounting frame is fixed at the lower end of the first mounting frame, the first scraper driving screw is fixed to the first screw mounting frame, the first scraper mounting seat is connected with the first scraper driving screw in a sliding manner, and the first scraper is fixed to the first scraper mounting seat.

6. The multifunctional photocuring 3D printing device of claim 3, wherein the descending unit comprises a descending lead screw and a second driving motor, the descending lead screw is fixed on the second mounting frame, the second forming platform is connected with the descending lead screw in a sliding mode, and the second driving motor is connected with the descending lead screw.

7. The multifunctional photocuring 3D printing device according to claim 3, wherein the second scraper transmission unit comprises a second screw rod mounting frame, a second scraper driving screw rod, a second scraper driving motor and a second scraper mounting seat, the second screw rod mounting frame is fixed to the lower end of the second mounting frame, the second scraper driving screw rod is fixed to the second screw rod mounting frame, the second scraper mounting seat is connected with the second scraper driving screw rod in a sliding mode, and the second scraper is fixed to the second scraper mounting seat.

8. The multifunctional photocuring 3D printing device of claim 1, wherein one or two optical engines are provided, and one or two reflectors are provided.

9. The multifunctional photocuring 3D printing device according to claim 2, wherein the bottom of the magazine is made of a high-light-transmittance material.

10. A printing method of a multifunctional photocuring 3D printing device is characterized by comprising the following steps:

when inverted printing: the first forming platform is driven to descend to the position right above the material box through the lifting unit, the distance between the first forming platform and the material box is the thickness of a first layer of the model curing layer, the optical engine transmits an image light source to the reflector plate, the light source is vertically projected onto the material box through the reflector plate, slurry is placed in the material box, and the slurry is cured through the light source;

after being cured and molded, the slurry is adhered to a first molding platform, then a lifting unit drives the first molding platform to ascend, a first scraper is driven by a first scraper transmission unit to pave, the first molding platform descends to a position right above a material box, next layer of curing is continued, and the step is repeated until the printing of the model is finished;

when the printer is in the normal mode: the optical engine transmits the image light source to the reflector plate, the light source is vertically projected to the second forming platform through the reflector plate, after the slurry on the second forming platform is cured by the light source, the curing model is adhered to the second forming platform, and the optical engine is closed;

and the descending mechanism drives the second forming platform to sink by a distance of one layer thickness, the second scraper is driven by the second scraper transmission unit to spread materials, the optical engine is started after the materials are spread, the next layer of curing is carried out by the light source, and the step is repeated until the model printing is finished.

Technical Field

The invention relates to the technical field of 3D printing, in particular to multifunctional photocuring 3D printing equipment and a printing method thereof.

Background

With the continuous development of economy, 3D printing technology is also in the period of being developed vigorously. Meanwhile, 3D printer technology plays an increasingly important role in society. When the photocuring 3D printer works, the printing and forming of the model are completed in a mode of layer-by-layer solidification and layer-by-layer stacking. The existing photocuring 3D printer is divided into an inverted type and a positive type according to the difference of the positions of a model and a forming platform, and the two printing modes respectively have advantages: the inverted printing model is easier to clean, and the material consumption is more saved; the positive light source directly irradiates the slurry, and the path media passed by the light source are few, so that scattering can be effectively reduced, and the printing precision is improved. The existing photocuring 3D printer is of a forward type or an inverted type, and has a single function.

Disclosure of Invention

Based on this, in order to solve the problem that the photocuring 3D printer is single in function, the invention provides a multifunctional photocuring 3D printing device, and the specific technical scheme is as follows:

the utility model provides a multi-functional photocuring 3D printing apparatus, includes optical engine, reflection of light piece, box, inversion formula photocuring module and forward formula photocuring module, optical engine, inversion formula photocuring module and forward formula photocuring module all set up in the box, the reflector adjustably set up in the box, inversion formula photocuring module set up in box upper portion, forward formula photocuring module set up in the box lower part, optical engine with the reflection of light piece set up in forward formula photocuring module with between the inversion formula photocuring module.

In the scheme, the inverted photocuring module and the upright photocuring module are added into the photocuring 3D printing equipment simultaneously, the advantages of two different printing modes can be fully utilized according to actual needs, the optimal printing scheme is realized on one machine according to model needs, the use value and the functionality of the equipment are greatly improved, and the multi-functionalization of the 3D printer is realized.

Further, the inverted photocuring module comprises a first forming platform, a material box, a first scraper, a lifting unit and a first scraper transmission unit, wherein a first mounting frame is arranged on the upper portion of the box body, the lifting unit is fixed on the first mounting frame, the first forming platform is movably connected with the lifting unit, the first scraper transmission unit is fixed on the first mounting frame, the first scraper is arranged on the first scraper transmission unit, and the material box is fixed on the upper end of the first mounting plate.

Further, formula photocuring module just is put includes second forming platform, material jar, second scraper, decline unit and second scraper drive unit, the box lower part is equipped with the second mounting bracket, the decline unit is fixed in the second mounting bracket, second forming platform with decline unit swing joint, second scraper drive unit is fixed in the second mounting bracket, the second scraper set up in second scraper drive unit, the material jar is fixed in second mounting bracket lower extreme.

Further, the lifting unit comprises a lifting screw rod and a first driving motor, the lifting screw rod is fixed to the first mounting frame, the first forming platform is movably connected with the lifting screw rod, and the first driving motor is connected with the lifting screw rod.

Further, first scraper drive unit includes first lead screw mounting bracket, first scraper drive lead screw, first scraper driving motor and first scraper mount pad, first lead screw mounting bracket is fixed in first mounting bracket lower extreme, first scraper drive lead screw is fixed in first lead screw mounting bracket, first scraper mount pad with first scraper drive lead screw sliding connection, first scraper is fixed in first scraper mount pad.

Further, the descending unit comprises a descending screw rod and a second driving motor, the descending screw rod is fixed to the second mounting frame, the second forming platform is connected with the descending screw rod in a sliding mode, and the second driving motor is connected with the descending screw rod.

Further, second scraper drive unit includes second lead screw mounting bracket, second scraper drive lead screw, second scraper driving motor and second scraper mount pad, second lead screw mounting bracket is fixed in second mounting bracket lower extreme, second scraper drive lead screw is fixed in second lead screw mounting bracket, second scraper mount pad with second scraper drive lead screw sliding connection, the second scraper is fixed in the second scraper mount pad.

Further, the optical engine is provided with one or two, and the reflector is provided with one or two.

Further, the bottom of the material box is made of a high-light-transmission material.

The invention also provides a printing method of the multifunctional photocuring 3D printing equipment, which comprises the following steps:

when inverted printing: the first forming platform is driven to descend to the position right above the material box through the lifting unit, the distance between the first forming platform and the material box is the thickness of a first layer of the model curing layer, the optical engine transmits an image light source to the reflector plate, the light source is vertically projected onto the material box through the reflector plate, slurry is placed in the material box, and the slurry is cured through the light source;

after being cured and molded, the slurry is adhered to a first molding platform, then a lifting unit drives the first molding platform to ascend, a first scraper is driven by a first scraper transmission unit to pave, the first molding platform descends to a position right above a material box, next layer of curing is continued, and the step is repeated until the printing of the model is finished;

when the printer is in the normal mode: the optical engine transmits the image light source to the reflector plate, the light source is vertically projected to the second forming platform through the reflector plate, after the slurry on the second forming platform is cured by the light source, the curing model is adhered to the second forming platform, and the optical engine is closed;

and the descending mechanism drives the second forming platform to sink by a distance of one layer thickness, the second scraper is driven by the second scraper transmission unit to spread materials, the optical engine is started after the materials are spread, the next layer of curing is carried out by the light source, and the step is repeated until the model printing is finished.

Drawings

The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.

Fig. 1 is a schematic structural diagram of a multifunctional photocuring 3D printing device in an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an inverted photocuring module of a multifunctional photocuring 3D printing device in an embodiment of the invention;

fig. 3 is a schematic structural diagram of an upright light-curing module of the multifunctional light-curing 3D printing device in an embodiment of the present invention;

description of reference numerals: 1. an optical engine; 2. a light-reflecting sheet; 3. a box body; 4. a first forming platform; 5. a magazine; 6. a first scraper; 7. a lifting unit; 8. a first scraper transmission unit;

9. a second forming platform; 10. a material cylinder; 11. a second scraper; 12. a descending unit; 13. a second scraper transmission unit; 14. lifting the screw rod; 15. a first drive motor; 16. a first lead screw mounting bracket; 17. the first scraper drives the screw rod; 18. a first scraper drive motor; 19. a first scraper mounting seat; 20. descending the screw rod; 21. a second drive motor; 22. a second lead screw mounting bracket; 23. the second scraper drives the screw rod; 24. a second scraper drive motor; 25. a second scraper mounting seat; 26. a first mounting bracket; 27. a second mounting bracket.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to embodiments thereof. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The terms "first" and "second" used herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.

As shown in fig. 1, the multifunctional photocuring 3D printing apparatus in an embodiment of the present invention includes an optical engine 1, a reflector 2, a case 3, an inverted photocuring module and an upright photocuring module, where the optical engine 1, the inverted photocuring module and the upright photocuring module are all disposed in the case 3, the reflector is adjustably disposed in the case 3, the inverted photocuring module is disposed at an upper portion of the case 3, the upright photocuring module is disposed at a lower portion of the case 3, and the optical engine 1 and the reflector 2 are disposed between the upright photocuring module and the inverted photocuring module.

In the scheme, the inverted photocuring module and the upright photocuring module are added into the photocuring 3D printing equipment simultaneously, the advantages of two different printing modes can be fully utilized according to actual needs, the optimal printing scheme is realized on one machine according to model needs, the use value and the functionality of the equipment are greatly improved, and the multi-functionalization of the 3D printer is realized.

In one embodiment, the inverted light curing module comprises a first forming platform 4, a material box 5, a first scraper 6, a lifting unit 7 and a first scraper transmission unit 8, a first mounting frame 26 is arranged on the upper portion of the box body 3, the lifting unit 7 is fixed on the first mounting frame 26, the first forming platform 4 is movably connected with the lifting unit 7, the first scraper transmission unit 8 is fixed on the first mounting frame 26, the first scraper 6 is arranged on the first scraper transmission unit 8, and the material box 5 is fixed on the upper end of the first mounting plate.

In one embodiment, the front-mounted light curing module comprises a second forming platform 9, a material cylinder 10, a second scraper 11, a descending unit 12 and a second scraper transmission unit 13, a second mounting frame 27 is arranged at the lower part of the box body 3, the descending unit 12 is fixed to the second mounting frame 27, the second forming platform 9 is movably connected with the descending unit 12, the second scraper transmission unit 13 is fixed to the second mounting frame 27, the second scraper 11 is arranged on the second scraper transmission unit 13, and the material cylinder 10 is fixed to the lower end of the second mounting frame 27.

In one embodiment, the lifting unit 7 includes a lifting screw 14 and a first driving motor 15, the lifting screw 14 is fixed to the first mounting frame 26, the first forming platform 4 is movably connected to the lifting screw 14, and the first driving motor 15 is connected to the lifting screw 14. The lifting screw 14 can drive the first forming platform 4 to ascend or descend, and the lifting screw 14 selects a high-precision screw to drive the first forming platform 4, so that the accuracy of printing thickness of each layer is guaranteed to be improved.

In one embodiment, the first scraper transmission unit 8 includes a first screw mounting bracket 16, a first scraper driving screw 17, a first scraper driving motor 18 and a first scraper mounting seat 19, the first screw mounting bracket 16 is fixed at the lower end of the first mounting bracket 26, the first scraper driving screw 17 is fixed at the first screw mounting bracket 16, the first scraper mounting seat 19 is slidably connected with the first scraper driving screw 17, and the first scraper 6 is fixed at the first scraper mounting seat 26. The first scraper driving screw rod 17 drives the first scraper 6 to move back and forth to realize the uniform spreading of each layer.

In one embodiment, the descending unit 12 includes a descending screw 20 and a second driving motor 21, the descending screw 20 is fixed to the second mounting bracket 27, the second forming platform 9 is slidably connected to the descending screw 20, and the second driving motor 21 is connected to the descending screw 20. The descending screw rod 20 selects a high-precision screw rod to drive the second forming platform 9, so that the accuracy of the thickness of each layer is guaranteed to be improved.

In one embodiment, the second scraper transmission unit 13 includes a second screw rod mounting frame 22, a second scraper driving screw rod 23, a second scraper driving motor 24 and a second scraper mounting seat 25, the second screw rod mounting frame 22 is fixed at the lower end of the second mounting frame 27, the second scraper driving screw rod 23 is fixed at the second screw rod mounting frame 22, the second scraper mounting seat 25 is slidably connected to the second scraper driving screw rod 12, the second scraper 11 is fixed at the second scraper mounting seat 25, and the second scraper driving screw rod 23 drives the second scraper 11 to move back and forth to realize uniform paving of each layer.

In one embodiment, one or two light engines 1 are provided, and one or two light reflectors 2 are provided. The optical engine 1 and the reflector 2 of the inverted light-curing module and the upright light-curing module can share one set or are respectively configured in each mode, the angle of the reflector 2 can be freely adjusted, and a light source of the optical engine 1 can be reflected to the inverted light-curing module or the upright light-curing module so as to adapt to light guiding of two printing modes.

In one embodiment, the bottom of the magazine 5 is made of a highly light-transmitting material. The light source can cure the slurry through the bottom of the magazine 5.

In one embodiment, the invention further provides a printing method of the multifunctional photocuring 3D printing device, which includes the following steps:

when inverted printing: the first forming platform 4 is driven to descend to the position right above the material box 5 through the lifting unit 7, the distance between the first forming platform 4 and the material box 5 is the layer thickness of a first layer of the model curing, the optical engine 1 transmits an image light source to the reflector 2, the reflector 2 vertically projects the light source onto the material box 5, slurry is placed in the material box 5, and the slurry is cured through the light source;

after being cured and molded, the slurry is adhered to the first molding platform 4, then the lifting unit 7 drives the first molding platform 4 to ascend, the first scraper 6 is driven by the first scraper 6 transmission unit to pave, the first molding platform 4 descends to a position right above the material box 5, next layer of curing is continued, and the steps are repeated until the model printing is finished;

when the printer is in the normal mode: the optical engine 1 transmits an image light source to the reflector 2, the light source is vertically projected onto the second forming platform 9 through the reflector 2, after the slurry on the second forming platform 9 is cured by the light source, the curing model is adhered to the second forming platform 9, and the optical engine 1 is closed;

the descending mechanism drives the second forming platform 9 to sink for a distance of one layer thickness, the second scraper 11 is driven by the transmission unit of the second scraper 11 to spread materials, after the materials are spread, the optical engine 1 is turned on, the next layer of curing is carried out through the light source, and the steps are repeated until the printing of the model is completed.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.