CN211031232U

CN211031232U - D L P type 3D printer with feeding system

Info

Publication number: CN211031232U
Application number: CN201922104925.1U
Authority: CN
Inventors: 王文斌; 周志永; 王立勇
Original assignee: Suzhou Boli New Material Technology Co ltd
Current assignee: Suzhou Boli New Material Technology Co ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-07-17
Anticipated expiration: 2029-11-29

Abstract

The utility model discloses a take feeding system's D L P type 3D printer, including the printing unit, including the cistern, projection mechanism, forming platform and elevating system, projection mechanism is configured into with the resin solution projection in the cistern to forming platform on, elevating system is configured into drive forming platform and moves along upper and lower direction, feeding system, including feed container and pump, the intercommunication has resin pipeline between feed container and the cistern, a tip of resin pipeline intercommunication cistern stretches into the interior bottom of cistern, the pump is linked together through gas pipeline and feed container, feed container is configured into under the drive of pump, when forming a bed thickness distance between the resin solution in forming platform and the cistern, the resin solution of this bed thickness distance is replenished from the interior bottom of cistern, when making forming platform every print a bed thickness distance, feed container can in time replenish and flow flat forming platform lower part's resin solution, shorten resin solution's levelling time, thereby improve printing efficiency.

Description

D L P type 3D printer with feeding system

Technical Field

The utility model relates to a vibration material disk makes technical field, in particular to take feeding system's D L P type 3D printer.

Background

The 3D printing technology is developed to date by various new technologies, more and more materials can be used, the application field is more and more extensive, and the 3D printing technology is deep in the lives of the masses.

D L P is a technology for finishing visible Digital information display based on a Digital Micromirror Device (DMD) developed by Texas instruments, USA.A D L P type 3D printer is a technology for irradiating resin solution material with a certain layer thickness by laser to be solidified and bonded on a forming platform, wherein the resin solution is leveled below the forming platform when the forming platform rises for a certain layer thickness, the next layer thickness is continuously irradiated and formed, the existing D L P type 3D printer generally comprises a liquid tank, a projection mechanism, a forming platform and a lifting mechanism, wherein the lifting mechanism adopts a transmission structure of a motor screw slider, the forming platform is installed on the slider, the projection mechanism can project the resin solution in the liquid tank onto the forming platform layer by layer, the motor drives the forming platform to move up and down, so that a model is printed on the forming platform layer by layer for a certain layer thickness when the forming platform prints layer thickness, the distance rises for a certain distance, the continuous printing platform can gradually move from a high position to a high position, and the forming platform can gradually move from a low position to a position when the forming platform prints the forming solution, and the forming platform can gradually increases the forming solution from a low printing efficiency to a high position after the forming platform.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims at providing a printing efficiency is higher, take feeding system's D L P type 3D printer.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:

a D L P type 3D printer with a feeding system, comprising:

the printing unit comprises a liquid tank, a projection mechanism, a forming platform and a lifting mechanism, wherein the projection mechanism is configured to project the resin solution in the liquid tank onto the forming platform, and the lifting mechanism is configured to drive the forming platform to move along the vertical direction;

the feeding system comprises a feeding container and a pump, wherein a resin conveying pipeline is communicated between the feeding container and the liquid tank, one end part of the resin conveying pipeline communicated with the liquid tank extends into the inner bottom of the liquid tank, the pump is communicated with the feeding container through a gas pipeline, and the feeding container is configured to replenish resin solution with the thickness distance from the inner bottom of the liquid tank when the forming platform rises by the thickness distance of one layer.

In the above technical solution, preferably, the feeding container is located above the liquid tank, and the pump is a vacuum pump.

In the above technical solution, preferably, the feeding container is located below the liquid tank, and the pump is a booster pump.

In the above technical solution, preferably, the bottom of the liquid tank is transparent, and the projection mechanism is disposed below the liquid tank.

In the above technical solution, preferably, the projection mechanism is a laser generator.

In the above technical scheme, preferably, the lifting mechanism comprises a slide rail extending along the up-down direction, a slide seat arranged on the slide rail in a sliding manner, a lifting motor and a screw rod connected between the lifting motor and the slide seat in a transmission manner, and the forming platform is arranged on the slide seat.

The utility model discloses a set up feeding system, feeding system includes feed container and pump, feed container is configured to under the drive of pump, when forming a bed thickness distance between the resin solution of shaping platform and cistern, replenish the resin solution of this bed thickness distance from the cistern bottom for when the every bed thickness distance of printing of shaping platform, feed container can in time supply and flow the resin solution of flat forming platform lower part, shorten resin solution's levelling time, thereby improve printing efficiency.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;

fig. 2 is a schematic structural diagram of embodiment 2 of the present invention;

wherein: 1. a printing unit; 11. a liquid bath; 12. a projection mechanism; 13. a forming platform; 14. a lifting mechanism;

2. a feed system; 21. a supply container; 22. a pump; 23. a resin delivery conduit; 24. a gas pipeline.

Detailed Description

To explain the technical content, structural features, achieved objects and functions of the present invention in detail, the following detailed description is made with reference to the accompanying drawings.

Example 1

As shown in fig. 1, a D L P type 3D printer includes a printing unit 1 and a feeding system 2.

The printing unit 1 includes a liquid tank 11, a projection mechanism 12, a forming table 13, and a lifting mechanism 14. The projection mechanism 12 is configured to project the resin solution in the liquid tank 11 onto the molding stage 13. Specifically, the projection mechanism 12 is a laser generator, the bottom of the liquid tank 11 is transparent, and the projection mechanism 12 is disposed below the liquid tank 11. In this example, the bottom of the liquid tank 11 is made transparent, and the projection mechanism 12 is disposed at the bottom of the liquid tank 11, and emits light from the bottom of the liquid tank 11, thereby projecting the resin solution in the liquid tank 11 onto the molding platform 13 to facilitate the mold printing and molding on the molding platform 13. Of course, in other embodiments, the projection mechanism may be disposed above the liquid tank, the liquid tank may not be disposed in a transparent state, the forming platform is disposed in the liquid tank, the projection mechanism forms the projection unit to project the resin solution in the liquid tank onto the upper surface of the forming platform by means of a mirror, so that the mold is formed on one side of the upper surface of the forming platform, and the upper surface and/or the lower surface of the forming platform may be used as a forming surface for printing the mold opposite to the resin solution. The lifting mechanism 14 is configured to drive the forming platform 13 to move in the up-down direction, and specifically, the lifting mechanism 14 includes a slide rail extending in the up-down direction, a slide seat slidably disposed on the slide rail, a lifting motor, and a screw rod drivingly connected between the lifting motor and the slide seat, and the forming platform 13 is mounted on the slide seat.

The supply system 2 includes a supply container 21 and a pump 22, a resin delivery pipe 23 is communicated between the supply container 21 and the liquid tank 11, one end of the resin delivery pipe 23 communicated with the liquid tank 11 extends into the inner bottom of the liquid tank 11, the pump 22 is communicated with the supply container 21 through a gas pipe 24, and the supply container 21 is configured to replenish the resin solution in the layer thickness distance from the inner bottom of the liquid tank 11 when the forming platform 13 forms the layer thickness distance with the resin solution in the liquid tank 11 under the driving of the pump 22, that is, every time the forming platform 13 prints the layer thickness distance. In this example, the supply tank 21 is located above the liquid tank 11, and the pump 22 is a vacuum pump. The feeding container 21 is filled with a part of resin solution, a space is reserved at the upper part of the feeding container 21 and is hermetically connected with a vacuum pump through a gas pipeline 24, and the vacuum pump provides certain negative pressure suction. The end of the feed container 21 where the tank is filled with the resin solution directly touches the bottom of the liquid tank 11 through the resin transfer pipe 23 and is capable of flowing out the resin solution therefrom. The negative pressure suction of the vacuum pump is adjusted according to the amount of the resin solution in the liquid tank 11 and the amount of the resin solution in the supply container 21 so that no resin solution flows out from the end of the resin transfer pipe 23 communicating with the liquid tank 11. When the forming platform 13 starts to print the model, the negative pressure suction of the vacuum pump is kept unchanged, after the forming platform 13 prints one layer thickness distance, the vacuum pump pumps the resin solution in the feeding container 21 into the liquid tank 11 from the bottom of the liquid tank 11 through the resin conveying pipeline 23 based on the pressure difference of the outlet of the resin conveying pipeline 23, the bottom of the liquid tank 11 is automatically supplemented and leveled, the forming platform 13 can execute the printing of the model with the next layer thickness, the printing work is sequentially and repeatedly completed, the leveling time of the resin solution in the liquid tank 11 is shortened, and the printing speed and the printing efficiency are improved.

Example 2

The same parts as those in embodiment 1 are not described again, and unlike embodiment 1, the feed tank 21 is located below the liquid tank 11, and the pump 22 is a booster pump. The supply container 21 is filled with a part of the resin solution, and the upper part of the supply container 21 is provided with a space and is hermetically connected with a booster pump through a gas pipeline 24, and a certain air positive pressure is provided by the booster pump. The end of the feed container 21 where the tank is filled with the resin solution directly touches the bottom of the liquid tank 11 through the resin transfer pipe 23 and is capable of flowing out the resin solution therefrom. According to the amount of the resin solution in the liquid tank 11 and the amount of the resin solution in the supply container 21, the air positive pressure of the booster pump is adjusted so that no resin solution flows out from the end of the resin transfer pipe 23 communicating with the liquid tank 11. When the forming platform 13 starts to print the model, the air positive pressure of the booster pump is kept unchanged, after the forming platform 13 prints one layer thickness distance, the booster pump pumps the resin solution in the feed container 21 into the liquid tank 11 from the bottom of the liquid tank 11 through the resin conveying pipeline 23 based on the pressure difference of the outlet of the resin conveying pipeline 23, the bottom of the liquid tank 11 is automatically supplemented and leveled, the forming platform 13 can execute the printing of the model with the next layer thickness, the printing work is sequentially and repeatedly completed, the leveling time of the resin solution in the liquid tank 11 is shortened, and the printing speed and the printing efficiency are improved.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A D L P type 3D printer with a feeding system, comprising:

the printing unit (1) comprises a liquid tank (11), a projection mechanism (12), a forming platform (13) and a lifting mechanism (14), wherein the projection mechanism (12) is configured to project the resin solution in the liquid tank (11) onto the forming platform (13), and the lifting mechanism (14) is configured to drive the forming platform (13) to move in the vertical direction;

the feeding system (2) comprises a feeding container (21) and a pump (22), a resin conveying pipeline (23) is communicated between the feeding container (21) and the liquid tank (11), the pump (22) is communicated with the feeding container (21) through a gas pipeline (24), and the feeding container (21) is configured to replenish resin solution in the thickness distance from the inner bottom of the liquid tank (11) when the forming platform (13) rises by the thickness distance of one layer.

2. The D L P type 3D printer with feeding system according to claim 1, wherein the resin delivery pipe (23) extends from one end of the liquid tank (11) into the inner bottom of the liquid tank (11).

3. The type D L P3D printer with feeding system according to claim 1, wherein the feeding container (21) is located above the liquid bath (11) and the pump (22) is a vacuum pump (22).

4. The type D L P3D printer with feed system according to claim 1, wherein the feed container (21) is located below the liquid bath (11) and the pump (22) is a booster pump (22).

5. The D L P type 3D printer with the feeding system according to claim 1, wherein the bottom of the liquid tank (11) is transparent, and the projection mechanism (12) is disposed below the liquid tank (11).

6. The D L P type 3D printer with the feeding system as claimed in claim 1, wherein the projection mechanism (12) is a laser generator.

7. The type D L P3D printer with the feeding system according to claim 1, wherein the lifting mechanism (14) comprises a slide rail extending in the up-down direction, a slide carriage slidably arranged on the slide rail, a lifting motor, and a screw rod drivingly connected between the lifting motor and the slide carriage, and the forming platform (13) is mounted on the slide carriage.