CN212097542U - Multi-optical-path photocuring 3D printing equipment - Google Patents
Multi-optical-path photocuring 3D printing equipment Download PDFInfo
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- CN212097542U CN212097542U CN202020736833.5U CN202020736833U CN212097542U CN 212097542 U CN212097542 U CN 212097542U CN 202020736833 U CN202020736833 U CN 202020736833U CN 212097542 U CN212097542 U CN 212097542U
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Abstract
The utility model discloses a multi-optical path photocuring 3D printing device, wherein at least one printing mechanism is arranged on a frame side by side, and the printing mechanism comprises a resin tank, a bearing screen plate, a screen plate driving component and an optical path component; the resin tank is arranged on the frame, and the bearing screen plate is positioned in the resin tank; the screen plate driving assembly comprises a supporting frame, a screen plate mounting frame and a first driving member, wherein the first driving member is used for driving the screen plate mounting frame to move so that the stepping amount of the thickness of a preset slicing layer of the bearing screen plate based on the part model is immersed into the photosensitive resin; the light path assembly is arranged on the machine frame and used for emitting laser beams to scan on the photosensitive resin on the surface of the bearing net plate along the section outline of the part model slice. The utility model discloses a place the part model printing that different types of photosensitive resin accomplished the different grade type in different resin groove, a plurality of printing mechanism independent control and independent printing to improve printing efficiency.
Description
Technical Field
The utility model relates to a printing apparatus's technical field, in particular to many light paths photocuring 3D printing apparatus.
Background
The rapid prototyping technology, also called 3D printing, is a high and new manufacturing technology based on a material accumulation method, which can manufacture a real object or a real model by a prototyping device in a material accumulation manner according to three-dimensional model data of a part or an object.
The basic principle of printing is layered processing and superposition molding, namely, a 3D entity is generated by adding materials layer by layer, when 3D printing is carried out, firstly, a computer obtains a three-dimensional model of an object to be printed in modes of design, scanning and the like, then, a computer aided design technology (such as CAD) completes a series of digital slices along a certain direction, information of the slices is transmitted to a 3D printer, the computer generates a machine instruction according to the slices, the 3D printer prints out thin layers according to the machine instruction, and stacks the continuous thin layers until a solid object is molded to form a three-dimensional solid object, and 3D printing is completed.
In the 3D printing technology, a single UV-LED light source or an ultraviolet laser light source is adopted by a photocuring 3D printer to irradiate the DMD chip, and then the surface or the bottom of a resin groove is irradiated by a lens to cure the irradiated photosensitive resin, so that the 3D printing process is completed.
However, the photocuring 3D printing equipment in the market at present only has one set of light path component and one resin groove, so that the photocuring 3D printing equipment can only print one material, and the overall printing efficiency is relatively low, so that certain improvement is provided.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a many light paths photocuring 3D printing apparatus has the characteristics that improve printing efficiency.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a multi-optical-path photocuring 3D printing device comprises a rack, wherein at least one printing mechanism is arranged on the rack side by side, and comprises a resin tank, a bearing screen plate, a screen plate driving assembly and an optical path assembly;
the resin tank is arranged on the rack, the opening of the resin tank is arranged upwards, photosensitive resin is arranged in the resin tank, the bearing screen plate is positioned in the resin tank, and the surface of the bearing screen plate is covered by the photosensitive resin;
the screen plate driving assembly comprises a supporting frame fixed on the rack, a screen plate mounting frame vertically and slidably mounted on the supporting frame, and a first driving member arranged on the supporting frame and connected with the screen plate mounting frame, wherein the screen plate mounting frame is used for keeping the bearing screen plate horizontally arranged, and the first driving member is used for driving the screen plate mounting frame to move so that the bearing screen plate is immersed into photosensitive resin according to the stepping amount of the preset slice layer thickness of the part model;
the light path component is arranged on the rack and located above the resin groove, and the light path component is used for emitting laser beams to scan on photosensitive resin on the surface of the bearing net plate along the section outline of the part model slice.
According to the technical scheme, when one printing mechanism is used for printing, the bearing screen plate is placed in the resin groove, the surface of the bearing screen plate is flush with the surface of the photosensitive resin so that the photosensitive resin can cover the surface of the bearing screen plate, at the moment, the light path assembly emits laser beams to scan on the photosensitive resin covering the surface of the bearing screen plate along the section outline of the part model slice, the photosensitive resin scanned by the laser beams is solidified on the bearing screen plate, and then the screen plate driving assembly drives the bearing screen plate to move downwards, wherein the distance of the downward movement is the stepping amount of the thickness of the preset slice layer of the part model;
repeating the above actions, the light path component sends out a laser beam to scan on the photosensitive resin along the section of the next layer of the slice of the part model, so that the photosensitive resin is cured and stacked, and the bearing screen plate continuously moves downwards by a stepping amount of a preset slice thickness under the action of the screen plate driving component, thereby realizing that the stacking and curing of the whole part model are completed on the bearing screen plate through the photosensitive resin;
wherein, when need use a 3D printing apparatus to realize the part model of multiple different grade type and print, can be through placing the part model printing of different grade type, two printing mechanism independent control and independent printing can be accomplished to the photosensitive resin of different grade types in different resin groove to effectively improve printing efficiency.
Preferably, the first driving member comprises a first driving motor fixed on the support frame and a first driving screw rod coaxially connected to an output shaft of the first driving motor, and the screen mounting frame is provided with a first threaded seat for the first driving screw rod to be in threaded connection.
Through above-mentioned technical scheme, first drive motor orders about first drive lead screw and rotates, and first drive lead screw drives the removal of otter board mounting bracket through first screw thread seat, and the form of first drive lead screw can the accurate displacement of controlling the otter board mounting bracket.
Preferably, slidable mounting has the briquetting mounting bracket on the support frame, be connected with the liquid level briquetting on the briquetting mounting bracket, be equipped with on the support frame and be used for ordering about the briquetting mounting bracket and remove so that the liquid level briquetting immerses in the resin tank and keep the photosensitive resin in the resin tank at the second drive component of predetermineeing standard liquid level department.
Through above-mentioned technical scheme, will cause the liquid level height reduction of photosensitive resin in the resin tank after photosensitive resin solidifies, this application orders about the briquetting mounting bracket through the second drive component and removes, and then drives the liquid level briquetting and immerses in the resin tank to can keep photosensitive resin to keep in predetermineeing standard liquid level department, make things convenient for the light path subassembly to beat the laser beam after focusing at the photosensitive resin surface, with the curing of photosensitive resin shaping.
Preferably, the second driving member comprises a second driving motor fixed on the support frame and a second driving screw rod coaxially connected to an output shaft of the second driving motor, and a second threaded seat for the second driving screw rod to be in threaded connection is arranged on the press block mounting frame.
Through the technical scheme, the moving distance of the press block mounting frame is accurately controlled in a second driving screw rod mode.
Preferably, the resin tank is provided with a liquid level sensor for detecting the liquid level height of the photosensitive resin in the resin tank and feeding the liquid level height back to the second driving member.
Through above-mentioned technical scheme, level sensor is used for detecting photosensitive resin's liquid level height and then feeds back to second drive component to make things convenient for second drive component to drive the briquetting mounting bracket and remove in order to adjust photosensitive resin's liquid level height to predetermineeing standard liquid level department.
Preferably, a scraper is horizontally arranged in the resin tank, a knife edge of the scraper is flush with the surface of the photosensitive resin at a preset standard liquid level of the resin tank, two ends of the scraper are slidably mounted on the rack, and a third driving member for driving the scraper to move is arranged on the rack.
Through above-mentioned technical scheme, after bearing the weight of every step of moving down of otter board and before the light path subassembly sends the laser pencil, the scraper can remove under the effect of third drive component, and the scraper can keep presetting the photosensitive resin surfacing of standard liquid level department to make things convenient for the solidification of follow-up photosensitive resin to pile up, and improve the quality of printing out part model shape.
Preferably, the third driving member includes a third driving motor fixed on the frame and a first synchronous pulley coaxially mounted on an output shaft of the third driving motor, the frame is rotatably mounted with a second synchronous pulley, a synchronous belt body is mounted between the first synchronous pulley and the second synchronous pulley, and one end of the scraper is fixed on the synchronous belt body.
Through above-mentioned technical scheme, the third driving motor drives the scraper high-efficiently, stably through first synchronous pulley, second synchronous pulley and the synchronous belt body and removes.
Preferably, the optical path component comprises an optical path mounting plate, a laser, a deflection plane mirror, a focusing galvanometer and a scanning galvanometer;
the light path mounting plate is fixed on the frame;
the laser is arranged on the frame and used for emitting laser beams, the deflection plane mirror, the focusing vibrating mirror and the scanning vibrating mirror are arranged on the frame, and the laser beams pass through the deflection plane mirror, the focusing vibrating mirror and the scanning vibrating mirror and then strike on photosensitive resin covered on the surface of the bearing net plate.
Through the technical scheme, the focusing galvanometer is used for focusing the laser line beam on the surface of the photosensitive resin at the preset standard liquid level, and the scanning galvanometer is used for controlling the laser line beam to scan on the bearing screen plate along the section profile of the part model slice.
Preferably, the laser is a solid state laser.
Preferably, the focusing galvanometer is a dynamic focusing galvanometer.
To sum up, the utility model discloses the beneficial effect who contrasts in prior art does:
use many light paths photocuring 3D printing apparatus of this application, when the part model that needs to use a 3D printing apparatus to realize multiple different grade type is printed, can print through placing the part model that different types can accomplish the different grade type in different resin groove, two print mechanism independent control and independent printing to effectively improve printing efficiency.
Drawings
Fig. 1 is a schematic structural diagram of a multi-optical-path photocuring 3D printing apparatus in the technical scheme of the present invention;
FIG. 2 is a schematic view of the installation of the bearing net plate in the technical solution of the present invention;
fig. 3 is a schematic structural diagram of a light path component in the technical solution of the present invention;
fig. 4 is a schematic structural diagram of a mesh plate driving assembly in the technical solution of the present invention;
FIG. 5 is a schematic view of the installation of the liquid level pressing block in the technical scheme of the present invention;
fig. 6 is an installation schematic diagram of the scraper in the technical solution of the present invention.
Reference numerals: 1. a frame; 2. a printing mechanism; 21. a resin tank; 22. carrying a screen plate; 221. a through hole; 23. a screen driving assembly; 231. a support frame; 232. a screen mounting rack; 233. a first drive member; 2331. a first drive motor; 2332. a first drive screw; 2333. a first threaded seat; 24. an optical path component; 241. an optical path mounting plate; 242. a laser; 243. a deflecting plane mirror; 244. a focusing galvanometer; 245. scanning a galvanometer; 246. an optical path passing port; 25. a press block mounting rack; 26. liquid level briquetting; 27. a second drive member; 271. a second drive motor; 272. a second drive screw; 273. a second threaded seat; 28. a liquid level sensor; 29. a scraper; 30. a third drive member; 301. a third drive motor; 302. a first timing pulley; 303. a second timing pulley; 304. synchronous belt body.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. It should be noted that: the relative arrangement of parts and steps set forth in these embodiments does not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In the prior art, the photocuring 3D printing device is only provided with one set of light path assembly 24 and one resin groove 21, so that the photocuring 3D printing device can only print one material, and the overall printing efficiency is relatively low.
The application provides a multi-optical-path photocuring 3D printing apparatus, when needing to use a 3D printing apparatus to realize the part model printing of multiple different material types, can print through the part model that puts different kinds of photosensitive resin and can accomplish different material types in different resin groove 21, different part models print independent control and independently print, print the process mutually noninterfere to effectively improve printing efficiency.
The utility model provides a many light paths photocuring 3D printing apparatus and controller electric connection carry out electrical control to each subassembly in the many light paths photocuring 3D printing apparatus by the controller. It is understood that the specific control principle and structure of the controller are well known to those skilled in the art, and therefore, will not be described in detail herein. Referring to fig. 1, a multi-optical path photocuring 3D printing apparatus includes a rack 1 and at least one printing mechanism 2 arranged side by side on the rack 1, in this embodiment, the number of the printing mechanisms 2 may be set according to specific situations, and this embodiment is described by taking two printing mechanisms 2 as an example.
The printing mechanism 2 includes a resin tank 21, a carrier screen 22, a screen drive unit 23, and an optical path unit 24.
The bearing screen plate 22 is positioned in the resin tank 21 and is immersed in the photosensitive resin, a plurality of through holes 221 are uniformly arranged on the bearing screen plate 22, and the photosensitive resin can keep flowing on the bearing screen plate 22 through the through holes 221. In this embodiment, the surface of the carrier screen 22 is flush with the liquid level of the photosensitive resin, and the surface of the carrier screen 22 is covered by the photosensitive resin, and the thickness of the covering is only one slice layer thickness of the part model.
Referring to fig. 2 and 4, the screen driving assembly 23 includes a supporting frame 231, a screen mounting frame 232 and a first driving member 233, the supporting frame 231 is vertically fixed on the frame 1, the screen mounting frame 232 is slidably mounted on the supporting frame 231 in a vertical direction, the screen mounting frame 232 is used for fixing the bearing screen 22, and the bearing screen 22 is fixed on the screen mounting frame 232 in a horizontal state. A first driving member 233 is provided on the support frame 231 to be connected to the screen mounting frame 232, and the first driving member 233 serves to drive the screen mounting frame 232 to move in a vertical direction along the support frame 231.
The first driving member 233 includes a first driving motor 2331, a first driving screw 2332 and a first screw base 2333, the first driving motor 2331 is fixed on the support frame 231, both ends of the first driving screw 2332 are mounted on the support frame 231 through bearing seats, an output shaft of the first driving motor 2331 is coaxially connected to the first driving screw 2332 through a coupling, the first screw base 2333 is fixed on the screen mounting frame 232, and the first driving screw 2332 is threadedly connected to the first screw base 2333. In this embodiment, the first driving motor 2331 is a servo motor, and the first driving motor 2331 drives the first driving screw 2332 to rotate, so as to drive the screen mounting frame 232 to move along the vertical direction of the supporting frame 231 according to the stepping amount of the first driving motor 2331.
Referring to fig. 1 and 3, an optical path assembly 24 is disposed on the frame 1 above the resin tank 21, and the optical path assembly 24 is used for emitting a laser beam to scan on the photosensitive resin on the surface of the carrying screen 22 along the section profile of the part model. The optical path assembly 24 includes an optical path mounting plate 241, a laser 242, a deflection plane mirror 243, a focusing galvanometer 244, and a scanning galvanometer 245. The optical path mounting plate 241 is fixed to the frame 1, the optical path mounting plate 241 is horizontally disposed above the opening of the resin tank 21, and an optical path passing opening 246 is formed in the optical path mounting plate 241.
The laser 242, the deflecting plane mirror 243, the focusing galvanometer 244 and the scanning galvanometer 245 are all arranged on the light path mounting board 241, in this embodiment, the laser 242 adopts a solid laser 242, the laser wavelength is 355nm, the laser 242 is used for emitting laser beams, and the laser beams pass through the deflecting plane mirror 243, the focusing galvanometer 244 and the scanning galvanometer 245 and then strike on photosensitive resin covered on the surface of the bearing screen 22.
Specifically, the deflecting plane mirror 243 is used for reflecting the laser beam to the focusing galvanometer 244, the focusing galvanometer 244 is a dynamic focusing galvanometer 244, and the focusing galvanometer 244 is used for focusing the laser beam. The scanning galvanometer 245 comprises a galvanometer shell, an X-axis galvanometer and a Y-axis galvanometer which are arranged in the galvanometer shell, a light path inlet and a light path outlet are arranged on the galvanometer shell, the galvanometer shell is arranged above a light path passing port 246 of the light path mounting plate 241, the light path outlet of the galvanometer shell is opposite to the light path passing port 246, the light path inlet of the galvanometer shell is opposite to the focusing galvanometer 244 to receive laser beams, the laser beams are emitted from the light path outlet and are irradiated on photosensitive resin of the bearing screen plate 22 through the light path passing port 246.
The position of the laser beam on the bearing screen 22 can be changed by adjusting the angles of the X-axis galvanometer and the Y-axis galvanometer, and the laser beam is focused on the surface of the photosensitive resin by the focusing galvanometer 244, so that the laser beam scans on the photosensitive resin along the section profile of the part model slice.
Therefore, when 3D printing is performed, a three-dimensional model of a part model to be printed is obtained by a computer through design, scanning and the like, a series of digital slices are completed in a certain direction by a computer aided design technology (such as CAD), for example, the digital slices are completed in a horizontal direction, and information of the slices is transmitted to a controller of the multi-path photocuring 3D printing device, wherein the slice information includes profile information of a section of each slice in the part model, a slice thickness of each slice in the part model and the like.
To illustrate the printing operation performed by taking one of the printing mechanisms 2 as an example, the carrier screen 22 is first placed in the resin tank 21, the surface of the carrier screen 22 is flush with the surface of the photosensitive resin so that the photosensitive resin can cover the surface of the carrier screen 22, and the thickness of the surface of the carrier screen 22 covered by the photosensitive resin is one layer of slicing layer, which is 0.1mm in this embodiment.
The controller sends out laser beams to the surface of the photosensitive resin by the laser 242 according to the profile information of the section of the current layer, the laser beams are scanned on the photosensitive resin along the section profile of the part model section by controlling the focusing galvanometer 244 and the scanning galvanometer 245, and the part of the photosensitive resin scanned by the laser beams is solidified on the bearing screen 22. After the photosensitive resin is cured, the first driving member 233 drives the carrier web 22 downward by one slice thickness.
In the next slice forming, the laser beam scans on the photosensitive resin along the cross-sectional profile of the next slice of the part model, so that the photosensitive resin is cured and stacked, the carrier web 22 continues to move downward by one slice thickness under the action of the first driving member 233, and the above actions are repeated to stack successive slices until a solid object is formed to form a three-dimensional part model, thereby completing 3D printing.
In the 3D printing process, the volume of the photosensitive resin shrinks after being cured, which causes the liquid level of the photosensitive resin in the resin tank 21 to decrease, so as to maintain the liquid level of the photosensitive resin at the preset standard liquid level of the resin tank 21. Referring to fig. 1 and 5, a press block mounting bracket 25 is vertically and slidably mounted on the support bracket 231, a liquid level press block 26 is fixedly connected to the press block mounting bracket 25, and a second driving member 27 for driving the press block mounting bracket 25 to move so that the liquid level press block 26 is immersed in the resin tank 21 is disposed on the support bracket 231.
The second driving member 27 includes a second driving motor 271, a second driving screw 272 and a second screw seat 273, the second driving motor 271 is fixed on the supporting frame 231, two ends of the second driving screw 272 are mounted on the supporting frame 231 through bearing seats, an output shaft of the second driving motor 271 is coaxially connected to the second driving screw 272 through a coupling, the second screw seat 273 is fixed on the briquette mounting frame 25, and the second driving screw 272 is screwed on the second screw seat 273. In this embodiment, the second driving motor 271 is a servo motor, and the second driving motor 271 drives the second driving screw 272 to rotate, so as to drive the press block mounting frame 25 to move along the vertical direction of the supporting frame 231 according to the stepping amount of the second driving motor 271.
It is to be noted that the resin tank 21 is provided with a level sensor 28 for detecting the level of the photosensitive resin in the resin tank 21 and feeding it back to the second driving member 27. In the present embodiment, the liquid level sensor 28 is disposed at the tank edge of the resin tank 21, and the liquid level sensor 28 can be a laser displacement sensor for detecting the liquid level height of the photosensitive resin in the resin tank 21. The laser displacement sensor adopts a product with a loose model number HL-G103-A-C5.
Therefore, firstly, the controller emits a laser beam to the surface of the photosensitive resin according to the profile information of the section of the current layer, the laser beam is scanned on the photosensitive resin along the section profile of the part model by controlling the focusing galvanometer 244 and the scanning galvanometer 245, and the part of the photosensitive resin scanned by the laser beam is solidified on the bearing screen 22. After the photosensitive resin is cured, the first driving member 233 drives the carrier web 22 downward by one slice thickness. Since the liquid level height is lowered due to the volume shrinkage of the photosensitive resin after curing, the liquid level sensor 28 detects the liquid level height of the photosensitive resin, and the second driving member 27 drives the liquid level block 26 to move down and dip into the photosensitive resin to maintain the photosensitive resin in the resin tank 21 at a preset standard level.
Subsequently, in the next slice forming, the laser beam scans on the photosensitive resin along the profile of the next slice cross section of the part model, so that the photosensitive resin is cured and stacked, the bearing screen 22 continues to move downwards by one slice thickness under the action of the first driving member 233, the liquid level sensor 28 continuously detects the liquid level height of the photosensitive resin, and the second driving member 27 drives the liquid level pressing block 26 to move downwards and immerse into the photosensitive resin, so as to keep the photosensitive resin in the resin tank 21 at the preset standard liquid level.
And repeating the actions, stacking the continuous slices until a solid object is molded to form a three-dimensional part model, and finishing the 3D printing. Through the setting of liquid level briquetting 26, liquid level briquetting 26 can keep the photosensitive resin in resin storage tank 21 in predetermineeing standard liquid level department to make things convenient for the accurate focus of laser pencil at the photosensitive resin surface of predetermineeing standard liquid level.
In the 3D printing process, the photosensitive resin at the preset standard level is cured, and thus it is necessary to maintain the surface flatness of the photosensitive resin at the preset standard level. Referring to fig. 1 and 6, a scraper 29 is horizontally disposed in the resin tank 21, two ends of the scraper 29 are slidably mounted on the frame 1, the bottom end of the scraper 29 is a blade, and the blade of the scraper 29 is flush with the preset standard liquid level of the resin tank 21, so that the scraper 29 will contact the surface of the photosensitive resin maintained at the preset standard liquid level of the resin tank 21, and a third driving member 30 for driving the scraper 29 to move is disposed on the frame 1.
It should be noted that the third driving member 30 includes a third driving motor 301 fixed on the frame 1, and a first synchronous pulley 302 coaxially mounted on an output shaft of the third driving motor 301, a second synchronous pulley 303 is rotatably mounted on the frame 1, a synchronous belt 304 is mounted between the first synchronous pulley 302 and the second synchronous pulley 303, and one end of the scraper 29 is fixed on the synchronous belt 304.
Therefore, firstly, the controller emits a laser beam to the surface of the photosensitive resin according to the profile information of the section of the current layer, the laser beam is scanned on the photosensitive resin along the section profile of the part model by controlling the focusing galvanometer 244 and the scanning galvanometer 245, and the part of the photosensitive resin scanned by the laser beam is solidified on the bearing screen 22. After the photosensitive resin is cured, the first driving member 233 drives the carrier web 22 downward by one slice thickness. Since the liquid level height is lowered due to the volume shrinkage of the photosensitive resin after curing, the liquid level sensor 28 detects the liquid level height of the photosensitive resin, and the second driving member 27 drives the liquid level block 26 to move down and dip into the photosensitive resin to maintain the photosensitive resin in the resin tank 21 at a preset standard level. At this time, the third driving member 30 drives the scraper 29 to move, and the scraper 29 scrapes off the surface of the photosensitive resin at the preset standard level.
Subsequently, in the next slice forming, the laser beam scans on the photosensitive resin along the profile of the next slice cross section of the part model, so that the photosensitive resin is cured and stacked, the bearing screen 22 continues to move downwards by one slice thickness under the action of the first driving member 233, the liquid level sensor 28 continuously detects the liquid level height of the photosensitive resin, the second driving member 27 drives the liquid level pressing block 26 to move downwards and immerse into the photosensitive resin, so as to keep the photosensitive resin in the resin tank 21 at the preset standard liquid level, at this time, the third driving member 30 drives the scraper 29 to move, and the scraper 29 scrapes off the surface of the photosensitive resin at the preset standard liquid level.
And repeating the actions, stacking the continuous slices until a solid object is molded to form a three-dimensional part model, and finishing the 3D printing. Through the setting of scraper 29, can keep leveling the photosensitive resin surface that is located predetermineeing the standard liquid level to guarantee that the shape accuracy after the photosensitive resin solidification is high, avoid appearing warping because photosensitive resin surface unevenness.
Use many light paths photocuring 3D printing apparatus of this application, when the part model that needs to use a 3D printing apparatus to realize multiple different grade type is printed, can print through the part model that puts different kinds of photosensitive resin and can accomplish the different grade type in different resin groove 21, two print mechanism 2 independent control and independent printing to effectively improve printing efficiency.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims.
Claims (10)
1. The multi-optical-path photocuring 3D printing equipment comprises a rack (1), and is characterized in that at least one printing mechanism (2) is arranged on the rack (1) side by side, and each printing mechanism (2) comprises a resin tank (21), a bearing screen plate (22), a screen plate driving assembly (23) and an optical path assembly (24);
the resin tank (21) is arranged on the rack (1) and provided with an upward opening, photosensitive resin is arranged in the resin tank (21), the bearing screen plate (22) is positioned in the resin tank (21), and the surface of the bearing screen plate (22) is covered by the photosensitive resin;
the screen plate driving assembly (23) comprises a supporting frame (231) fixed on the rack (1), a screen plate mounting frame (232) vertically and slidably mounted on the supporting frame (231), and a first driving member (233) arranged on the supporting frame (231) and connected with the screen plate mounting frame (232), wherein the screen plate mounting frame (232) is used for keeping the bearing screen plate (22) horizontally arranged, and the first driving member (233) is used for driving the screen plate mounting frame (232) to move so that the bearing screen plate (22) is immersed into photosensitive resin according to the stepping amount of the preset slice layer thickness of the part model;
the light path component (24) is arranged on the machine frame (1) and located above the resin groove (21), and the light path component (24) is used for emitting laser beams to scan on photosensitive resin on the surface of the bearing screen plate (22) along the section outline of the part model slice.
2. The multi-optical-path photocuring 3D printing apparatus according to claim 1, wherein the first driving member (233) comprises a first driving motor (2331) fixed on the support frame (231) and a first driving screw rod (2332) coaxially connected to an output shaft of the first driving motor (2331), and a first threaded seat (2333) for the first driving screw rod (2332) to be in threaded connection is arranged on the screen mounting frame (232).
3. The multi-optical-path photocuring 3D printing apparatus according to claim 1, wherein the support frame (231) is slidably mounted with a press block mounting frame (25), the press block mounting frame (25) is connected with a liquid level press block (26), and the support frame (231) is provided with a second driving member (27) for driving the press block mounting frame (25) to move so as to immerse the liquid level press block (26) in the resin tank (21) and keep the photosensitive resin in the resin tank (21) at a preset standard liquid level.
4. The multi-optical-path photocuring 3D printing apparatus according to claim 3, wherein the second driving means (27) comprises a second driving motor (271) fixed on the support frame (231) and a second driving screw (272) coaxially connected to an output shaft of the second driving motor (271), and a second threaded seat (273) for the second driving screw (272) to be in threaded connection is arranged on the press block mounting frame (25).
5. The multi-optical path photocuring 3D printing apparatus according to claim 3, wherein a liquid level sensor (28) for detecting a liquid level height of the photosensitive resin in the resin tank (21) and feeding back the liquid level height to the second driving member (27) is provided on the resin tank (21).
6. The multi-optical-path photocuring 3D printing device according to claim 3, wherein a scraper (29) is horizontally arranged in the resin tank (21), the edge of the scraper (29) is flush with the surface of the photosensitive resin which is kept at a preset standard liquid level of the resin tank (21), two ends of the scraper (29) are slidably mounted on the frame (1), and a third driving member (30) for driving the scraper (29) to move is arranged on the frame (1).
7. The multi-optical-path photocuring 3D printing apparatus according to claim 6, wherein the third driving member (30) comprises a third driving motor (301) fixed on the frame (1) and a first synchronous pulley (302) coaxially mounted on an output shaft of the third driving motor (301), the frame (1) is rotatably mounted with a second synchronous pulley (303), a synchronous belt body (304) is mounted between the first synchronous pulley (302) and the second synchronous pulley (303), and one end of the scraper (29) is fixed on the synchronous belt body (304).
8. The multi-optical path photocuring 3D printing apparatus of claim 1, wherein the optical path component (24) comprises an optical path mounting board (241), a laser (242), a deflection plane mirror (243), a focusing galvanometer (244), and a scanning galvanometer (245);
the light path mounting plate (241) is fixed on the frame (1);
the laser (242) is arranged on the rack (1) and used for emitting laser beams, the deflection plane mirror (243), the focusing vibrating mirror (244) and the scanning vibrating mirror (245) are arranged on the rack (1), and the laser beams pass through the deflection plane mirror (243), the focusing vibrating mirror (244) and the scanning vibrating mirror (245) and then strike on photosensitive resin covered on the surface of the bearing screen plate (22).
9. The multi-path photocuring 3D printing device of claim 8, wherein the laser (242) is a solid state laser (242).
10. The multi-optical path photocuring 3D printing device of claim 8, wherein the focusing galvanometer (244) is a dynamic focusing galvanometer (244).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020736833.5U CN212097542U (en) | 2020-05-07 | 2020-05-07 | Multi-optical-path photocuring 3D printing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020736833.5U CN212097542U (en) | 2020-05-07 | 2020-05-07 | Multi-optical-path photocuring 3D printing equipment |
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| Publication Number | Publication Date |
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| CN212097542U true CN212097542U (en) | 2020-12-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111331840A (en) * | 2020-05-07 | 2020-06-26 | 恒通西交智能机器(广东)有限公司 | Multi-optical-path photocuring 3D printing equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111331840A (en) * | 2020-05-07 | 2020-06-26 | 恒通西交智能机器(广东)有限公司 | Multi-optical-path photocuring 3D printing equipment |
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