CN113134972A

CN113134972A - Leveling device of large-scale photocuring 3D printer

Info

Publication number: CN113134972A
Application number: CN202110534577.0A
Authority: CN
Inventors: 洪英盛; 张胜哲; 王威
Original assignee: Shenzhen Intelligent Technology Co ltd
Current assignee: Shenzhen Intelligent Technology Co ltd
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2021-07-20

Abstract

The invention discloses a leveling device of a large-scale photocuring 3D printer, which is characterized in that a base, leveling components, at least two driving components and pressure sensors are arranged, the leveling components are connected with the driving components, the driving components drive the leveling components to move, the number of the driving components and the number of the pressure sensors are at least two, a plurality of driving components are arranged on the outer peripheral side of each leveling component in a surrounding manner, one driving component is matched with the position of one pressure sensor, when a user needs to level a printing area of the printer, the driving components can respectively drive different positions of the leveling components to move simultaneously according to the plurality of driving components, the action of each driving component is respectively controlled in a mode of triggering the plurality of pressure sensors, the complicated leveling steps of the traditional machine are reduced, the leveling success rate is higher than that of manual leveling, and if high-precision sensors are utilized, the leveling can be more accurate, the success rate of model printing is increased, and the efficiency of batch printing is also increased.

Description

Leveling device of large-scale photocuring 3D printer

Technical Field

The invention relates to the field of leveling equipment of large-scale 3D printers, in particular to a leveling device of a large-scale photocuring 3D printer.

Background

With the gradual maturity of 3D printing technology, 3D printers are being used in more and more industries. In the use of the 3D printer, the leveling of the molding surface of the printing material is an important link, if the leveling fails, the model falls off, and finally the printing fails due to the conditions of model extrusion and the like in the printing process. The size of the printer platform is also affected by the different sizes of the printed articles, and the larger the size is, the greater the difficulty of manual leveling of the printer is. Most 3D printers in the market at present need manual leveling, except for complicated steps during leveling, repeated leveling is needed, and success rate and efficiency of printing models are greatly influenced.

Disclosure of Invention

The invention provides a leveling device of a large photocuring 3D printer, and aims to solve the problem of low printing success rate and efficiency caused by manual leveling in the conventional 3D printer.

According to the embodiment of the application, the leveling device of the large-scale photocuring 3D printer comprises a base, a leveling component, a driving component and a pressure sensor, wherein the driving component and the pressure sensor are arranged on the base; the leveling component is connected with the driving component, and the driving component drives the leveling component to be close to or far away from the base; the number of the driving assemblies and the number of the pressure sensors are at least two, and the number of the driving assemblies is the same as that of the pressure sensors; the driving assemblies are arranged on the outer peripheral sides of the leveling assemblies in a surrounding mode, one driving assembly is matched with one pressure sensor in position, and the driving assemblies drive the leveling assemblies to move to be in contact with the corresponding pressure sensors.

Preferably, leveling subassembly includes leveling board and construction board, leveling board with drive assembly is connected, the construction board is located leveling board is close to base one side.

Preferably, the area of the build plate is smaller than the area of the leveling plate.

Preferably, the leveling plate and the building plate are rectangular plate structures, the number of the driving assemblies and the number of the pressure sensors are four, and the four driving assemblies are correspondingly arranged at four corners of the leveling plate.

Preferably, the screen connecting plate is sleeved on the outer peripheral side of the screen, the screen connecting plate protrudes out of the surface of the base, the pressure sensor is arranged on the screen connecting plate, and when the construction plate is in contact with the screen connecting plate, the construction plate is pressed on the pressure sensor.

Preferably, the screen connecting plate further comprises a trough assembly, the trough assembly is connected with the base and is arranged around the periphery of the screen connecting plate; the material groove assembly comprises a material groove, a first pressing piece, a second pressing piece and a material groove supporting plate which are sequentially stacked, a spring is arranged between the material groove supporting plate and the base, and a bolt sequentially penetrates through the first pressing piece, the second pressing piece, the material groove supporting plate and the spring and is in threaded connection with the base.

Preferably, the first pressing plate and the second pressing plate are of rectangular frame structures, the number of the bolts is four, and the four bolts are arranged at four corners of the first pressing plate.

Preferably, the driving assembly comprises a driving track, a sliding block and a driving motor, one end of the driving track is connected with the base, the sliding block is connected with the driving track in a sliding manner, the sliding block is connected with the driving motor, and the driving motor drives the sliding block to move on the driving track; the sliding block is connected with the leveling plate, and the driving motor is electrically connected with the pressure sensor.

The leveling device of the large photocuring 3D printer provided by the invention has the following beneficial effects:

1. through setting a base, leveling components, driving components and pressure sensors, the driving components and the pressure sensors are arranged on the base, the leveling components are connected with the driving components, the driving components drive the leveling components to be close to or far away from the base, the number of the driving components and the pressure sensors is at least two, the number of the driving components is the same as that of the pressure sensors, a plurality of the driving components are arranged on the periphery side of the leveling components in a surrounding mode, one driving component is matched with the position of one pressure sensor, the driving components drive the leveling components to move and contact with the corresponding pressure sensors, so that when a user needs to level a printing area of a printer, different positions of the leveling components can be driven by the driving components to move simultaneously, and the action of each driving component is controlled by triggering the pressure sensors respectively, the mode is automatic leveling, the complicated leveling steps of the traditional machine are reduced, the leveling success rate is higher than that of manual leveling, if a high-precision sensor is utilized, the leveling can be more accurate, the success rate of model printing is greatly increased, and the efficiency of batch printing is also increased.

2. Through setting up the dull and stereotyped and the components of a whole that can function independently of construction board to adjust the dull and stereotyped and indirect adjustment constructs the horizontality of board, convenience of customers clears up and changes the construction board, has also made things convenient for the user to take out the model after 3D prints the completion simultaneously, has improved the work efficiency that 3D printed. Further, a plurality of drive assembly independent control leveling board's four different angular position for at 3D printing in-process, when the model printing finishes need with the model drawing of patterns, can control unilateral two motors respectively and start earlier, form the slope, then the model that the construction board of slope carried on can be quick separate with FEP membrane, further improve the efficiency that 3D printed.

3. The area of the building board is smaller than that of the leveling board, namely the leveling board has larger side length, correspondingly, the space formed by the leveling board in a surrounding mode through the driving components is larger, the building board has a wider working plane, a user can conveniently control the printer, meanwhile, the building board is indirectly adjusted through the leveling board with larger size, the adjusting efficiency is higher, and the accuracy is higher.

4. The leveling plate and the construction plate are of rectangular plate structures, the number of the driving assemblies and the number of the pressure sensors are four, the driving assemblies are correspondingly arranged at four corners of the leveling plate, and the pressure sensors are arranged at positions, corresponding to the four corners of the construction plate, of the base. When the driving assembly drives the four corners of the leveling plate to move towards the base, the four corners of the building plate also move towards the four pressure sensors at the same time, so that the horizontal state is adjusted in a mode of controlling the four corners of the building plate.

5. The screen connecting plate is provided with the pressure sensor, so that the construction plate is convenient to press down and position, a user can adjust the horizontal position of the screen connecting plate to realize accurate matching with the construction plate in pressing down and positioning, the leveling operation efficiency and the leveling quality are improved, and the problems of inconvenient adjustment and inaccurate horizontal adjustment caused by the fact that the construction plate directly presses down the base can be avoided.

6. By pressing and positioning the FEP film between the first pressing sheet and the second pressing sheet, part of the FEP film cannot reach the specified tension (namely, too loose or too tight) after pressing due to the self-tension degree, and the FEP film which does not meet the requirement of the tension degree can cause printing failure. User's accessible rotates the bolt, and under the effect of holding based on supporting of spring, first preforming, second preforming and silo backup pad begin to drive FEP membrane and remove to the base direction, and because the screen connecting plate is protruding in the surface of base for the FEP membrane of downstream is held up by screen connecting plate jack-up, and plays the effect of secondary tensioning, FEP membrane excessively lax problem that leads to printing the failure when printing has been solved to adjustable FEP membrane take-up unit, has increased the success rate that the model printed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a leveling device of a large-scale photocuring 3D printer according to a first embodiment of the present invention.

Fig. 2 is a front view of a leveling device of a large-scale photocuring 3D printer according to a first embodiment of the present invention.

Fig. 3 is a top view of a screen connecting plate in a leveling device of a large-scale photocuring 3D printer according to a first embodiment of the invention.

Description of reference numerals:

1. a leveling device of the large photocuring 3D printer;

11. a base;

12. a leveling assembly; 121. leveling; 122. constructing a plate;

13. a drive assembly; 131. a drive rail; 132. a slider; 133. a drive motor;

14. a pressure sensor;

15. a screen connecting plate; 16. a screen;

17. a trough assembly; 171. a trough; 172. a first tablet; 173. a second tabletting; 174. a trough supporting plate; 175. a spring; 176. and (4) bolts.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items and includes such combinations.

Referring to fig. 1 and fig. 2, a leveling device 1 of a large-scale photocuring 3D printer according to a first embodiment of the present invention includes a base 11, a leveling component 12, a driving component 13, and a pressure sensor 14, where the driving component 13 and the pressure sensor 14 are disposed on the base 11.

The leveling component 12 is connected with the driving component 13, and the driving component 13 drives the leveling component 12 to approach or depart from the base 11. The number of the driving assemblies 13 and the number of the pressure sensors 14 are at least two, and the number of the driving assemblies 13 is the same as that of the pressure sensors 14. The driving assemblies 13 are arranged around the outer periphery of the leveling assemblies 12, one driving assembly 13 is matched with one pressure sensor 14 in position, and the driving assembly 13 drives the leveling assemblies 12 to move to be in contact with the corresponding pressure sensors 14.

It can be understood that in the resin light-cured 3D printer, the side of the leveling component 12 close to the base 11 is a molding surface, and the molding surface is gradually molded on the leveling component 12 through the melted material, so that the level state of the side of the leveling component 12 close to the base 11 directly affects the quality and success rate of the 3D printing model.

It can be understood that a plurality of the driving assemblies 13 are respectively connected to different positions on the outer peripheral side of the leveling assembly 12, each driving assembly 13 individually controls the height of the corresponding position of the leveling assembly 12, so that the leveling state of the leveling assembly 12 can be adjusted by the plurality of driving assemblies 13 at a plurality of positions, and the more the number of the driving assemblies 13 is, the more accurate the adjustment of the leveling state of the leveling assembly 12 is.

It is understood that the number of the pressure sensors 14 is the same as the number of the driving assemblies 13, and each pressure sensor 14 is matched with the position of the driving assembly 13, so that when the single driving assembly 13 drives the height of the specified position of the leveling assembly 12 separately, whether the height of the current position is satisfactory or not can be determined separately based on the matched pressure sensors 14.

In use, a user drives the leveling component 12 to approach the base 11 by activating the driving components 13, so that a plurality of positions on the outer periphery of the leveling component 12 are in contact with the corresponding pressure sensors 14, when one pressure sensor 14 is triggered, the driving component 13 corresponding to the triggered pressure sensor 14 stops driving until all the driving components 13 stop, which indicates that the leveling component 12 has completed the leveling operation and is in a horizontal state.

Referring to fig. 1 and 2, the leveling component 12 includes a leveling plate 121 and a building plate 122, the leveling plate 121 is connected to the driving component 13, the building plate 122 is disposed on one side of the leveling plate 121 close to the base 11, one side of the building plate 122 away from the leveling plate 121 is used for forming a 3D printing model, and the leveling plate 121 adjusts a horizontal position of the building plate 122 based on the connection of the driving component 13.

It will be appreciated that the build plate 122 is brought into contact with the pressure sensor 14 by the leveling plate 121, the leveling step described above is first completed to achieve horizontal position positioning, and then the 3D printing operation is continued from the leveling position by the driving assembly 13.

It can be understood that the leveling plate 121 and the building plate 122 are arranged in a split mode, so that the leveling plate 121 is adjusted to indirectly adjust the horizontal state of the building plate 122, a user can clean and replace the building plate 122 conveniently, the user can take out a model after 3D printing is completed conveniently, and the working efficiency of 3D printing is improved.

It can be understood that a plurality of drive assembly 13 independent control leveling board 121's different four angular position for in 3D printing process, when the model printing finishes need with the model drawing of patterns, can control unilateral two motors respectively and start earlier, form the slope, then the model that the construction board 122 of slope carried on can be quick separate with FEP membrane, further improve 3D printing's efficiency.

Optionally, as an embodiment, the area of the build plate 122 is smaller than the area of the leveling plate 121, that is, the leveling plate 121 has a larger side length, and correspondingly, the space formed by enclosing the plurality of driving assemblies 13 in the leveling plate 121 is larger, so that the build plate 122 has a wider working plane, which is convenient for a user to control the printer, and meanwhile, the build plate 122 is indirectly adjusted by the leveling plate 121 with a larger size, which makes the adjustment more efficient and more accurate.

It can be understood that, in the present embodiment, the leveling plate 121 and the build-up plate 122 are rectangular plate structures, the number of the driving assemblies 13 and the pressure sensors 14 is four, four of the driving assemblies 13 are correspondingly disposed at four corners of the leveling plate 121, and the pressure sensors 14 are disposed at positions of the base 11 corresponding to four corners of the build-up plate 122. When the driving unit 13 drives the four corners of the leveling plate 121 to move toward the base 11, the four corners of the build plate 122 also move toward the four pressure sensors 14 at the same time to adjust the horizontal state by controlling the four corners of the build plate 122.

It should be understood that the number of the driving assemblies 13 may also be set to be 2, 3, 5 or more, the plurality of driving assemblies 13 are disposed on the outer periphery of the leveling plate 121, and meanwhile, the leveling plate 121 and the building plate 122 may also be set to be in various shapes such as a circle, a square or a diamond, as long as the plurality of driving assemblies 13 are disposed on the outer periphery of the leveling plate 121, and the plurality of positions of the leveling plate 121 are individually adjusted by the plurality of driving assemblies 13, so as to achieve the purpose of contacting the building plate 122 with the plurality of pressure sensors 14 to achieve horizontal adjustment, which is not limited herein. In the present embodiment, the number of the driving assemblies 13 is only 4, and the shapes of the build plate 122 and the leveling plate 121 are rectangular, which is not a limitation of the present embodiment.

Referring to fig. 1 and fig. 2, the driving assembly 13 includes a driving rail 131, a sliding block 132, and a driving motor 133, one end of the driving rail 131 is connected to the base 11, the sliding block 132 is connected to the driving rail 131 in a sliding manner, the sliding block 132 is connected to the driving motor 133, and the driving motor 133 drives the sliding block 132 to move on the driving rail 131. The slider 132 is connected to the leveling plate 121, and the driving motor 133 is electrically connected to the pressure sensor 14.

It should be understood that the driving rail 131 is perpendicular to the surface of the base 11, and the driving motor 133 rotates to drive the sliding block 132 to move, for example, a screw transmission, a worm gear transmission, or the like may be provided, as long as the sliding block 132 can be driven by the driving motor 133 to move along the driving rail 131 to drive the connection position of the leveling plate 121 to move, which is not limited herein.

When the pressure sensor 14 is triggered, the corresponding driving motor 133 is controlled to stop rotating, that is, to stop the movement of the leveling plate 121, and the leveling plate 121 reaches the preset position at this position and stops.

Referring to fig. 1, 2 and 3, the leveling device 1 of the large-scale photocuring 3D printer further includes a screen connecting plate 15 and a screen 16, the screen connecting plate 15 is sleeved on the outer peripheral side of the screen 16, the screen connecting plate 15 protrudes from the surface of the base 11, the pressure sensor 14 is disposed on the screen connecting plate 15, and when the building plate 122 contacts with the screen connecting plate 15, the building plate 122 presses the pressure sensor 14.

It can be understood that the pressure sensor 14 is arranged on the raised screen connecting plate 15, so that the build plate 122 can be pressed and positioned conveniently, a user can adjust the horizontal position of the screen connecting plate 15 to realize accurate matching with the press and positioning of the build plate 122, the leveling operation efficiency and the leveling quality are improved, and the problems of inconvenient adjustment and inaccurate horizontal adjustment caused by directly pressing the base 11 by the build plate 122 can be avoided.

With reference to fig. 1 and fig. 2, the leveling device 1 of the large-scale photocuring 3D printer further includes a trough assembly 17, the trough assembly 17 is connected to the base 11, and the trough assembly 17 is annularly disposed on the outer peripheral side of the screen connecting plate 15.

Specifically, the trough assembly 17 includes a trough 171, a first pressing plate 172, a second pressing plate 173, and a trough support plate 174, which are sequentially stacked, wherein a spring 175 is disposed between the trough support plate 174 and the base 11, and a bolt 176 sequentially passes through the first pressing plate 172, the second pressing plate 173, the trough support plate 174, and the spring 175, and is in threaded connection with the base 11.

In use, the FEP film is placed between the first pressing piece 172 and the second pressing piece 173, and is fixed by pressing the first pressing piece 172 and the second pressing piece 173, the FEP film positioned at this time is arranged opposite to the building plate 122, when 3D printing work is started, the model is gradually formed between the FEP film and the building plate 122, and finally, the model is separated from the FEP film under the driving of the building plate 122.

In positioning the FEP film, the FEP film is first positioned between the first press sheet 172 and the second press sheet 173 in press-fit positioning, so that the FEP film can be positioned below the build plate 122.

It will be appreciated that when the FEP film is positioned by the press fit between the first pressing piece 172 and the second pressing piece 173, a portion of the FEP film cannot reach a predetermined tension (i.e., too loose or too tight) after the press fit due to the tension of the FEP film itself, and the FEP film not meeting the tension requirement may cause printing failure. The user can rotate the bolt 176, and the first pressing plate 172, the second pressing plate 173 and the trough supporting plate 174 start to drive the FEP film to move toward the base 11 under the action of the spring 175, and the FEP film moving downward is pushed up by the screen connecting plate 15 due to the protrusion of the screen connecting plate 15 on the surface of the base 11, so as to perform the secondary tensioning function.

Alternatively, as an embodiment, the first pressing plate 172 and the second pressing plate 173 have a rectangular frame structure, the number of the bolts 176 is four, four bolts 176 are disposed at four corners of the first pressing plate 172, and a user can adjust the tension of the FEP film at different angular positions by controlling the bolts 176 at different positions respectively, and simultaneously adjust the horizontal state.

While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A leveling device of a large photocuring 3D printer is characterized by comprising a base, a leveling component, a driving component and a pressure sensor, wherein the driving component and the pressure sensor are arranged on the base;

the leveling component is connected with the driving component, and the driving component drives the leveling component to be close to or far away from the base;

the number of the driving assemblies and the number of the pressure sensors are at least two, and the number of the driving assemblies is the same as that of the pressure sensors;

the driving assemblies are arranged on the outer peripheral sides of the leveling assemblies in a surrounding mode, one driving assembly is matched with one pressure sensor in position, and the driving assemblies drive the leveling assemblies to move to be in contact with the corresponding pressure sensors.

2. The leveling device of a large-scale photocuring 3D printer according to claim 1, characterized in that: the leveling component comprises a leveling plate and a construction plate, the leveling plate is connected with the driving component, and the construction plate is arranged on one side, close to the base, of the leveling plate.

3. The leveling device of a large-scale photocuring 3D printer according to claim 2, characterized in that: the area of the build plate is smaller than the area of the leveling plate.

4. The leveling device of a large-scale photocuring 3D printer according to claim 2, characterized in that: the leveling plate and the construction plate are of rectangular plate structures, the number of the driving assemblies and the number of the pressure sensors are four, and the driving assemblies are correspondingly arranged at four corners of the leveling plate.

5. The leveling device of a large-scale photocuring 3D printer according to claim 2, characterized in that: the screen connecting plate is sleeved on the outer peripheral side of the screen, the screen connecting plate protrudes out of the surface of the base, the pressure sensor is arranged on the screen connecting plate, and when the construction plate is in contact with the screen connecting plate, the construction plate is pressed on the pressure sensor.

6. The leveling device of a large-scale photocuring 3D printer according to claim 5, characterized in that: the screen connecting plate is characterized by also comprising a trough assembly, wherein the trough assembly is connected with the base and is arranged around the outer periphery of the screen connecting plate;

the material groove assembly comprises a material groove, a first pressing piece, a second pressing piece and a material groove supporting plate which are sequentially stacked, a spring is arranged between the material groove supporting plate and the base, and a bolt sequentially penetrates through the first pressing piece, the second pressing piece, the material groove supporting plate and the spring and is in threaded connection with the base.

7. The leveling device of a large-scale photocuring 3D printer according to claim 6, characterized in that: the first pressing piece and the second pressing piece are of rectangular frame structures, the number of the bolts is four, and the four bolts are arranged at four corners of the first pressing piece.

8. The leveling device for large-sized photocuring 3D printer as set forth in claim 2, characterized in that: the driving assembly comprises a driving track, a sliding block and a driving motor, one end of the driving track is connected with the base, the sliding block is connected with the driving track in a sliding mode, the sliding block is connected with the driving motor, and the driving motor drives the sliding block to move on the driving track;

the sliding block is connected with the leveling plate, and the driving motor is electrically connected with the pressure sensor.