阅读说明：本技术 一种3d打印机 (3D printer ) 是由 韦占 于 2020-12-16 设计创作，主要内容包括：本发明涉及一种3D打印机,包括机架,设于机架底座上且从下之上依次叠层设置的X轴导轨、Y轴导轨和工作台,以及设于机架顶部的多个用于装光敏树脂液体的料槽,X轴导轨和Y轴导轨均水平设置且相互垂直,机架内还设有可竖直移动的升降板,升降板上设有切换装置,切换装置底部设有均与料槽连通的单色喷射装置和混色喷射装置,升降板上还设有用于将从单色喷射装置或混色喷射装置喷出的光敏树脂液体固化的光固化装置,切换装置使单色喷射装置和混色喷射装置择一对准光固化装置；混色喷射装置能将多种颜色的光敏树脂液体混合后喷出。有益效果：能够着多种颜色,颜色调配准确均匀,自由切换三基色着色和调配颜色着色两种工作模式。(The invention relates to a 3D printer, which comprises a rack, an X-axis guide rail, a Y-axis guide rail and a workbench which are arranged on a base of the rack and are sequentially stacked from bottom to top, and a plurality of troughs which are arranged at the top of the rack and used for containing photosensitive resin liquid, wherein the X-axis guide rail and the Y-axis guide rail are horizontally arranged and are mutually vertical; the mixed color spraying device can mix and spray out the photosensitive resin liquid with various colors. Has the advantages that: the color mixing machine can be used for printing various colors, the color mixing is accurate and uniform, and two working modes of three-primary-color coloring and color mixing coloring are freely switched.)

1. The utility model provides a 3D printer, a serial communication port, includes frame (1), locates X axle guide rail (2), Y axle guide rail (3) and workstation (4) that just from the top in proper order stromatolite set up on frame (1) base, and locate a plurality of silos (14) that are used for adorning photosensitive resin liquid at frame (1) top, X axle guide rail (2) with Y axle guide rail (3) are equal level setting and mutually perpendicular, workstation (4) can be followed X axle guide rail (2) or the direction of Y axle guide rail (3) removes, still be equipped with in frame (1) riser (7) that can vertical removal, be equipped with switching device on riser (7), the switching device bottom be equipped with all with monochromatic injection apparatus and colour mixture injection apparatus (11) of silo (14) intercommunication, still be equipped with on riser (7) and be used for following monochromatic injection apparatus or colour mixture injection apparatus (11) spun photosensitive tree is spun A light curing device (12) for curing the grease liquid, wherein the switching device enables the single color spraying device and the mixed color spraying device (11) to be alternatively aligned with the light curing device (12); the mixed color injection device (11) can mix and inject the photosensitive resin liquid of a plurality of colors.

2. The 3D printer according to claim 1, characterized in that a screw (5) and a guide post (6) are arranged on the base of the frame (1), wherein the screw (5) and the guide post both penetrate through the lifting plate (7), and the screw (5) is in screw transmission connection with the lifting plate (7).

3. The 3D printer according to claim 2, wherein the switching device comprises a switching rotating shaft (8) and a switching circular truncated cone (9), the switching rotating shaft (8) is vertically and rotatably connected to the bottom of the lifting plate (7) and is driven by a switching motor to rotate around the central axis of the lifting plate, and the switching circular truncated cone (9) is fixedly connected to the bottom end of the switching rotating shaft (8).

4. The 3D printer according to claim 3, characterized in that the tank (14) is provided with three and it contains the photosensitive resin liquids of three colors red, yellow and blue, respectively.

5. The 3D printer according to claim 4, characterized in that said monochrome spraying means comprise three monochrome spraying heads (10) fixedly connected to the bottom of said switching turret (9) and in one-to-one correspondence with said chutes (14), each of said monochrome spraying heads (10) communicating with a corresponding chute (14) through a monochrome duct (15).

6. The 3D printer according to claim 5, characterized in that the color mixing jet device (11) comprises a mixing chamber (111) fixedly connected to the bottom of the switching circular table (9), a stirring device arranged in the mixing chamber (111) and a color mixing nozzle (114) arranged at the bottom of the mixing chamber (111) and communicated with the mixing chamber, wherein the mixing chamber (111) is communicated with the three material tanks (14) through three color mixing pipes (16).

7. The 3D printer according to claim 6, characterized in that each mixing tube (16) is provided with a flow regulating valve (17).

8. The 3D printer according to claim 6, wherein the stirring device comprises a stirring shaft (112) and stirring blades (113), the stirring shaft (112) is vertically arranged and rotatably connected in the mixing cavity (111), the stirring shaft (112) is driven by a stirring motor to rotate around the central axis of the stirring shaft, and the stirring blades (113) are arranged on the stirring shaft (112) in a plurality and uniformly spaced manner.

9. The 3D printer according to claim 8, wherein an air pump (13) is further fixedly connected to the lifting plate (7), and the mixing chamber (111) is communicated with an air outlet of the air pump (13).

10. The 3D printer according to claim 6, wherein the light curing devices (12) are symmetrically provided in two, each light curing device (12) comprises a UV lamp (121) and a light quantity adjusting device (122), the UV lamp (121) is aligned with the single color nozzle (10) or the mixed color nozzle (114), and the light quantity adjusting device (122) changes the light quantity of the ultraviolet rays irradiated to the photosensitive resin liquid by changing the light intensity of the ultraviolet rays emitted by the UV lamp (121).

Technical Field

The invention relates to the technical field of 3D printing, in particular to a 3D printer.

Background

A 3D printer, also known as a three-dimensional printer (3DP), is a machine that is an additive manufacturing technique, i.e., a rapid prototyping technique. The working principle of the 3D printer is basically the same as that of a common printer, printing materials are superposed layer by layer under the control of a computer, and finally, blueprints on the computer are changed into real objects. This technique is often used in the field of mold making, industrial design, etc. for making models or for direct manufacture of some products. At present, various 3D printing technologies exist, and common technologies include three-dimensional printing of bonding materials, three-dimensional printing of photocuring, three-dimensional printing of melting materials, and the like. The technology that adopts in the 3D printing field, no matter be SLS, SLA, FDM or other technique, almost all 3D printers all print the monochromatic, can't realize the true colour outward appearance of model, and then satisfy the higher requirement of user.

Disclosure of Invention

The invention aims to provide a 3D printer to solve the problems.

The technical scheme for solving the technical problems is as follows: A3D printer comprises a frame, an X-axis guide rail, a Y-axis guide rail and a workbench which are arranged on a base of the frame and are sequentially arranged in a laminating manner from bottom to top, and a plurality of troughs arranged at the top of the frame and used for containing photosensitive resin liquid, wherein the X-axis guide rail and the Y-axis guide rail are horizontally arranged and are vertical to each other, the worktable can move along the direction of the X-axis guide rail or the Y-axis guide rail, a lifting plate which can move vertically is also arranged in the machine frame, the lifting plate is provided with a switching device, the bottom of the switching device is provided with a single-color injection device and a mixed-color injection device which are both communicated with the material groove, the lifting plate is also provided with a light curing device for curing the photosensitive resin liquid sprayed out from the single-color spraying device or the mixed-color spraying device, the switching device enables the single-color spraying device and the mixed-color spraying device to be alternatively aligned with the light curing device; the mixed color spraying device can mix and spray out the photosensitive resin liquid with various colors.

The invention has the beneficial effects that: the color matching machine can be used for coloring in various colors, the color matching is accurate and uniform, two working modes of three-primary-color coloring and color matching coloring are freely switched, and the real color appearance of the model is realized.

On the basis of the technical scheme, the invention can be further improved as follows.

Furthermore, a vertical screw rod and a guide post which penetrate through the lifting plate are arranged on the base of the rack, and the screw rod is in spiral transmission connection with the lifting plate.

Further, the switching device comprises a switching rotating shaft and a switching round table, the switching rotating shaft is vertically and rotatably connected to the bottom of the lifting plate and is driven by the switching motor to rotate around the central axis of the lifting plate, and the switching round table is fixedly connected to the bottom end of the switching rotating shaft.

Furthermore, the trough is provided with three photosensitive resin liquids which are respectively filled with red, yellow and blue.

Further, the monochromatic spraying device comprises three monochromatic spray heads which are fixedly connected to the bottom of the switching round table and correspond to the material troughs one by one, and each monochromatic spray head is communicated with the corresponding material trough through a monochromatic pipe.

Further, colour mixture injection apparatus include fixed connection in switch the hybrid chamber of round platform bottom, locate mixing arrangement in the hybrid chamber and locate the hybrid chamber bottom and rather than the colour mixture shower nozzle of intercommunication, the hybrid chamber through three colour mixture pipe respectively with three the silo intercommunication.

Furthermore, each color mixing pipe is provided with a flow regulating valve.

Further, agitating unit includes (mixing) shaft and stirring leaf, the vertical setting of (mixing) shaft and its rotate connect in mix the intracavity, the (mixing) shaft is rotated around its central axis by the driving of agitator motor, the stirring leaf is equipped with a plurality ofly and its even spaced locating mix epaxially.

Furthermore, an air pump is fixedly connected to the lifting plate, and the mixing cavity is communicated with an air outlet of the air pump.

Further, the two light curing devices are symmetrically arranged, each light curing device comprises a UV lamp and a light quantity adjusting device, the UV lamps are aligned with the single-color spray head or the mixed-color spray head, and the light quantity adjusting device changes the light quantity of the ultraviolet rays of the photosensitive resin liquid irradiated by changing the light intensity of the ultraviolet rays emitted by the UV lamps.

Drawings

Fig. 1 is a schematic structural diagram of a 3D printer provided in the present invention;

FIG. 2 is a partial enlarged view of the schematic structure of the switching device, the single color jetting device and the color mixing jetting device of the 3D printer shown in FIG. 1;

fig. 3 is a bottom view of the switching device, the monochromatic spray device and the color mixing spray device of the 3D printer of fig. 1.

In the drawings, the components represented by the respective reference numerals are listed below:

1. the device comprises a frame, 2, an X-axis guide rail, 3, a Y-axis guide rail, 4, a workbench, 5, a screw, 6, a guide post, 7, a lifting plate, 8, a switching rotating shaft, 9, a switching circular table, 10, a single-color sprayer, 11, a color mixing sprayer, 111, a mixing cavity, 112, a stirring shaft, 113, a stirring blade, 114, a color mixing sprayer, 12, a light curing device, 121, a UV lamp, 122, a light quantity adjusting device, 13, an air pump, 14, a trough, 15, a single-color pipe, 16, a color mixing pipe, 17 and a flow adjusting valve.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

As shown in fig. 1-3, a 3D printer comprises a frame 1, an X-axis guide rail 2, a Y-axis guide rail 3 and a workbench 4 which are arranged on a base of the frame 1 and are sequentially stacked from below, and a plurality of troughs 14 for containing photosensitive resin liquid and arranged on the top of the frame 1, wherein the X-axis guide rail 2 and the Y-axis guide rail 3 are both horizontally arranged and are perpendicular to each other, the workbench 4 can move along the direction of the X-axis guide rail 2 or the Y-axis guide rail 3, a lifting plate 7 which can vertically move is further arranged in the frame 1, a switching device is arranged on the lifting plate 7, a monochromatic jet device and a mixed color jet device 11 which are both communicated with the troughs 14 are arranged at the bottom of the switching device, a light curing device 12 for curing the photosensitive resin liquid jetted from the monochromatic jet device or the mixed color jet device 11 is further arranged on the lifting plate 7, the switching device enables the single-color spraying device and the mixed color spraying device 11 to be alternatively aligned with the light curing device 12; the mixed color spraying device 11 can mix and spray the photosensitive resin liquid of a plurality of colors.

The base of the frame 1 is provided with a vertical screw rod 5 and a guide post 6 which both penetrate through the lifting plate 7, and the screw rod 5 is in spiral transmission connection with the lifting plate 7. The lifting plate 7 is lifted to drive the single-color injection device and the color mixing injection device 11 to lift, so that the layer-by-layer printing is realized, and finally, the three-dimensional solid object is printed.

The switching device comprises a switching rotating shaft 8 and a switching circular truncated cone 9, the switching rotating shaft 8 is vertically rotated and connected to the bottom of the lifting plate 7 and is driven by a switching motor to rotate around the central axis of the lifting plate, and the switching circular truncated cone 9 is fixedly connected to the bottom end of the switching rotating shaft 8. The switching motor drives the switching rotating shaft 8 and the switching circular truncated cone 9 to synchronously rotate, so that the single-color spray heads 10 or the mixed-color spray heads 114 alternately appear at the UV lamps 121, and the single-color spray heads 10 or the mixed-color spray heads 114 at the bottom of the switching circular truncated cone 9 can be switched to be aligned to the UV lamps 121.

The trough 14 is provided with three photosensitive resin liquids which are respectively filled with red, yellow and blue. Red, yellow and blue are used as three basic colors, and various colors can be prepared by mixing in different proportions.

The single-color spraying device comprises three single-color spray heads 10 which are fixedly connected to the bottom of the switching round table 9 and correspond to the material grooves 14 one by one, and each single-color spray head 10 is communicated with the corresponding material groove 14 through a single-color pipe 15. The single-color photosensitive resin liquid of the three colors of red, yellow and blue can be ejected from the corresponding single-color tube 15 through the single-color ejection head 10.

The mixed color injection device 11 comprises a mixing cavity 111 fixedly connected to the bottom of the switching round table 9, a stirring device arranged in the mixing cavity 111 and a mixed color nozzle 114 arranged at the bottom of the mixing cavity 111 and communicated with the mixing cavity, wherein the mixing cavity 111 is communicated with the three material troughs 14 through three mixed color pipes 16. The single-color photosensitive resin liquid of the three colors of red, yellow and blue is left in the mixing cavity 111 through the color mixing pipe 16, is uniformly stirred by the stirring device to form a new color, and is sprayed out through the color mixing nozzle 114.

Each color mixing tube 16 is provided with a flow regulating valve 17. The flow regulating valve 17 can regulate the flow in the color mixing tube 16 corresponding to the three colors of red, yellow and blue according to the demand of the color to the three colors of red, yellow and blue to be allocated.

Agitating unit includes (mixing) shaft 112 and stirring leaf 113, stirring shaft 112 vertical setting and its rotate connect in mixing chamber 111, stirring shaft 112 is rotated around its central axis by the driving of agitator motor, stirring leaf 113 is equipped with a plurality ofly and its even spaced locating on stirring shaft 112. The stirring motor drives the stirring shaft 112 to rotate, and the stirring blades 113 on the stirring shaft 112 enable the photosensitive resin liquid in the mixing cavity 111 to be uniformly stirred, so that color or gradient color cannot be formed due to non-stirring or non-uniform stirring.

The lifting plate 7 is also fixedly connected with an air pump 13, and the mixing cavity 111 is communicated with an air outlet of the air pump 13. When a new color needs to be blended in the mixing cavity 111 again, the air pump 13 can blow out the photosensitive resin liquid mixed last time, so as to avoid inaccurate color mixing caused by the last interference of the residual photosensitive resin liquid, and obviously, the color mixing nozzle 114 is not aligned with the UV lamp 121 at this time.

The light curing devices 12 are symmetrically provided in two, each light curing device 12 includes a UV lamp 121 and a light quantity adjusting device 122, the UV lamp 121 is aligned with the single color nozzle 10 or the mixed color nozzle 114, and the light quantity adjusting device 122 changes the light quantity of the ultraviolet rays of the photosensitive resin liquid irradiated by changing the light intensity of the ultraviolet rays emitted from the UV lamp 121. The photosensitive resin liquid sprayed from the single color nozzle 10 or the mixed color nozzle 114 is cured under the irradiation of the UV lamp 121, and then a three-dimensional solid object is obtained on printing. The light amount adjusting device 122 can change the light amount of the ultraviolet rays irradiated to the photosensitive resin liquid by changing the light intensity of the ultraviolet rays emitted from the UV lamp 121 to achieve optimal light amount adjustment in different temperature and humidity environments.

The fixed connection referred to in this application may be a threaded connection, a welded connection or an adhesive connection.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.