CN114179355A - Photocuring 3D printer and leveling method thereof - Google Patents
Photocuring 3D printer and leveling method thereof Download PDFInfo
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- CN114179355A CN114179355A CN202111600101.9A CN202111600101A CN114179355A CN 114179355 A CN114179355 A CN 114179355A CN 202111600101 A CN202111600101 A CN 202111600101A CN 114179355 A CN114179355 A CN 114179355A
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- 238000000016 photochemical curing Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000011347 resin Substances 0.000 claims abstract description 56
- 229920005989 resin Polymers 0.000 claims abstract description 56
- 238000009434 installation Methods 0.000 claims abstract description 15
- 238000003825 pressing Methods 0.000 claims description 20
- 230000005415 magnetization Effects 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims 4
- 238000007885 magnetic separation Methods 0.000 claims 3
- 238000007493 shaping process Methods 0.000 abstract description 13
- 238000010146 3D printing Methods 0.000 abstract description 2
- 238000007639 printing Methods 0.000 description 12
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- 230000002146 bilateral effect Effects 0.000 description 5
- 230000006978 adaptation Effects 0.000 description 4
- 238000009530 blood pressure measurement Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
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- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/124—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
- B29C64/129—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
- B29C64/135—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/245—Platforms or substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/264—Arrangements for irradiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
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Abstract
The invention provides a photocuring 3D printer and a leveling method thereof, and belongs to the technical field of 3D printing. It has solved the current inconvenient, the shaping platform slope scheduling problem of shaping platform dismouting. The leveling device comprises a leveling device, the leveling device is used for adjusting the levelness of a forming platform, the forming platform is arranged on a lifting driving mechanism through an installation frame, the forming platform is movably sleeved at the bottom of the installation frame, a locking structure fixes the forming platform on the installation frame, the leveling device comprises a leveling bottom plate, the leveling bottom plate is detachably arranged on a rack, the lifting driving mechanism drives the forming platform to descend, the lower bottom surface of the forming platform is attached to the upper surface of the leveling bottom plate, and the locking mechanism locks the forming platform on the leveling bottom plate so that the lower bottom surface of the forming platform and the upper surface of the leveling bottom plate are kept in an attached state. The invention has the advantages that the forming platform is detachable, the pressure sensor is arranged between the resin pool and the bedplate, and the leveling mode is simple and convenient.
Description
Technical Field
The invention belongs to the technical field of 3D printing, and relates to a photocuring 3D printer and a leveling method thereof.
Background
The photocuring 3D printer utilizes ultraviolet light or other light sources with specific wavelength ranges to irradiate liquid photosensitive resin and initiate photochemical reaction, so that the photosensitive resin in the area irradiated by the light sources is solidified and formed from the liquid state, and the object to be formed can be obtained after layer-by-layer solidification. The structure of the photocuring 3D printer generally includes a forming platform, a resin pool, imaging glass, a light source, etc., the light source forms a transmission area to be cured at the bottom of the resin pool through the imaging glass, and liquid resin between the forming surface of the forming platform or the cured layer and the bottom of the resin pool is cured and formed in the transmission area.
At the beginning of printing, the forming platform is lowered to the bottom inside the resin pool, the bottom of the resin pool is a transparent bottom film, the bottom surface of the forming platform is approximately contacted with the bottom film, a set layer thickness distance (usually 0.025mm-0.1mm) is reserved, then a part of light is transmitted by the light source, the part of light is projected onto the resin between the bottom surface of the forming platform and the resin pool film, and the photosensitive resin is subjected to light excitation to generate polymerization reaction and is converted into a solid state from a liquid state. When the forming platform is lifted upwards, the solidified resin can be separated from the resin pool film, so that the printing body of the first layer is formed, and when the forming platform is lifted upwards, the surrounding resin can be diffused to the first layer exposure area, and the resin is filled and spread in the first layer exposure area again for printing of the next layer. And then the forming platform is lowered to a position one layer thickness higher than the former position, the light source projects light required by the printing of the second layer, and the resin between the first layer of printing body and the resin pool film is cured to form the second layer of printing body. This process is repeated a plurality of times until the printing process is finished.
The conventional photo-curing 3D printer has several disadvantages:
1. in the traditional mode, after every layer of printing, the shaping platform can lift more than 3mm, later falls to the position that is higher a layer thickness value than preceding one deck again, at the in-process that descends, because of can't detect whether have remaining solid-state foreign matter in the resin pond, also or the numerical value that descends takes place the deviation, and shaping platform descends when leading to printing, sticiss on foreign matter and resin pond, makes resin pond pressure too big to destroy and print body and resin pond.
2. According to the traditional photocuring 3D printer, a forming platform is fixedly arranged on a lifting driving mechanism, the lifting driving mechanism is used for driving the forming platform to lift, the traditional forming platform is connected with a sliding block on the lifting driving mechanism through a connecting piece, and the traditional forming platform is generally connected in a fastener and handle mode, so that the connecting mode is time-consuming in disassembly and assembly, the forming platform is inconvenient to maintain or disassemble and clean, and the forming platform is easy to loosen in the long-term lifting motion process, so that the platform is inclined;
3. the levelness of the forming platform plays an important role in the precision of the printed and formed parts. The looseness that becomes easily among the installation error of shaping platform or the long-term elevating movement process can lead to the platform slope, when work platform slope, will lead to 3D printer scanning mechanism motion error, then leads to printing model shape error, position error, lamina slip, roughness increase scheduling problem.
Disclosure of Invention
The first purpose of the present invention is to solve the above problems of the existing photocuring 3D printer, and to provide a photocuring 3D printer which can detect the pressure change of the resin pool, is convenient for mounting and dismounting the forming platform, and can adjust the levelness of the forming platform.
The first object of the present invention can be achieved by the following technical solutions:
a photocuring 3D printer comprises a frame, a resin pool, a forming platform, a lifting driving mechanism and a light source, wherein the resin pool, the forming platform, the lifting driving mechanism and the light source are arranged on the frame, the forming platform is arranged above the resin pool, the light source is arranged below the resin pool, and the lifting driving mechanism drives the forming platform to lift in the resin pool, and the printer is characterized by further comprising a leveling device which is used for adjusting the levelness of the forming platform, the forming platform is arranged on the lifting driving mechanism through an installation frame, the forming platform is movably sleeved at the bottom of the installation frame, a locking structure fixes the forming platform on the installation frame, the leveling device comprises a leveling bottom plate, the leveling bottom plate is detachably arranged on the frame, the lifting driving mechanism drives the forming platform to descend, the lower bottom surface of the forming platform is attached to the upper surface of the leveling bottom plate, and the forming platform is locked on the leveling bottom plate through the locking mechanism, so that the lower bottom surface of the forming platform and the upper surface of the leveling bottom plate are kept in a fit state.
In foretell photocuring 3D printer, the shaping platform set up on lift actuating mechanism through a detachable construction, this detachable construction includes the fixed block, the fixed block links firmly through a connecting piece and lift actuating mechanism's slider, the shaping platform passes through the mounting bracket horizontal slip and sets up on the fixed block, still rotate in the fixed block and be equipped with a magnetic switch, through rotating this magnetic switch, make fixed block and mounting bracket can be adsorbed fixedly by the magnetization.
In foretell photocuring 3D printer, magnetic switch include magnet, magnetic conduction piece, magnetic conduction board, magnetic conduction piece and magnetic conduction board homoenergetic are magnetized by magnet, magnetic conduction piece links firmly with the fixed block, and the magnetic conduction board links firmly with the mounting bracket, and the up end at magnetic conduction piece is established to the magnetic conduction board cover, be equipped with a magnetic shield in the inner chamber of magnetic conduction piece, this magnetic shield separates into about two parts with the magnetic conduction piece, and magnet rotates through a rotary device and sets up on the magnetic shield, rotary device can drive magnet and rotate to make magnetic conduction board and magnetic conduction piece can be magnetized and adsorb fixedly.
In foretell photocuring 3D printer, the cross-sectional shape of mounting bracket is the U-shaped of invering, is equipped with bilateral symmetry's two direction inclined planes on the fixed block, be equipped with the fitting surface corresponding with this direction inclined plane on two inboard faces of mounting bracket, the mounting bracket compresses tightly downwards on the fixed block to it is spacing about making two direction inclined planes and corresponding fitting surface laminating mutually form.
In foretell photocuring 3D printer, the U-shaped of the cross-sectional shape of magnetic conduction board for invering, the fixed interior top surface that sets up at the mounting bracket of magnetic conduction board, the U type opening part at the magnetic conduction board is established to the fixed block card, the U type opening size of magnetic conduction board and the overall dimension looks adaptation of above-mentioned magnetic conduction piece, in the shaping platform pushed the fixed block through the mounting bracket, the magnetic conduction board can promote to the medial surface counterbalance with the fixed block to make the position of shaping platform corresponding with the position in resin pond.
In the photocuring 3D printer, the lifting drive mechanism includes a linear module.
In an aforementioned photocuring 3D printer, rotary device include the handle, the handle links firmly with magnet.
In foretell photocuring 3D printer, the frame on still be equipped with pressure measurement device, the resin pond sets up on this pressure measurement device, pressure measurement device includes mounting panel, pressure sensor, and a plurality of pressure sensor are fixed to be set up on the mounting panel, and the mounting panel is fixed to be set up in the frame, pressure sensor's sense terminal is vertical up, on the sense terminal of pressure sensor is applyed to resin pond gravity.
In the photocuring 3D printer, a platen is fixedly arranged on the rack, an installation groove is formed in the upper surface of the platen, the installation plate is embedded in the installation groove, and the shape of the installation plate is matched with that of the installation groove.
In the photocuring 3D printer, four pressure sensors are uniformly distributed at four top corners of the rectangular mounting plate.
In the light-cured 3D printer, a backing plate is further disposed between the pressure sensor and the resin pool, and the resin pool is detachably disposed on the backing plate.
In foretell photocuring 3D printer, locking mechanism include the briquetting, leveling bottom plate detachably sets up on above-mentioned backing plate, and two briquetting bilateral symmetry set up on the leveling bottom plate, it has spacing draw-in groove to open on the briquetting, and the orientation of the spacing draw-in groove of two briquetting is relative, with the left and right sides both ends of above-mentioned forming platform card respectively establish in two spacing draw-in grooves, two briquetting and leveling bottom plate can dismantle and be connected.
In foretell photocuring 3D printer, spacing draw-in groove run through the setting along briquetting length direction, the cross sectional shape of spacing draw-in groove is right trapezoid, the shape of shaping platform lower half is two right trapezoids of bilateral symmetry, the size at both ends and the size looks adaptation of two spacing draw-in grooves about the shaping platform.
In the photocuring 3D printer, a plurality of vertically arranged adjusting elongated slots are formed in the forming platform, and a plurality of mounting screw holes corresponding to the adjusting elongated slots one to one are formed in the mounting frame.
The second purpose of the present invention is to provide an adjusting method for adjusting the levelness of the forming platform, which is to solve the above problems of the existing photocuring 3D printer.
The second object of the present invention can be achieved by the following technical solutions:
a leveling method of a photocuring 3D printer utilizes the photocuring 3D printer to adjust, and is characterized by comprising the following steps:
1. the resin pool is detached from the base plate;
2. loosening the fastener on the adjusting elongated slot of the forming platform;
3. fixing the leveling bottom plate on the base plate through a fastener;
4. the lifting driving mechanism drives the forming platform to descend, so that the forming platform is naturally attached to the leveling bottom plate;
5. fixing the two pressing blocks on the leveling bottom plate through fasteners, respectively embedding the left end and the right end of the forming platform in the two limiting clamping grooves, and pressing the forming platform on the leveling bottom plate;
6. screwing the fastener on the adjusting long groove of the forming platform;
7. and (4) detaching the two pressing blocks, driving the forming platform to lift, and detaching the leveling bottom plate.
Compared with the prior art, the invention has the following beneficial effects:
1. the forming platform is arranged on the fixed block in a sliding mode through the mounting frame, due to the existence of the magnetic isolation plate, when the magnet is in a vertical state, the magnetic conduction plate and the magnetic conduction block cannot be magnetized, and during mounting, the mounting frame is horizontally pushed into the fixed block to form positioning in the front direction, the rear direction and the left direction and the right direction; rotating the magnet to a horizontal state to enable the magnetic conduction plate and the magnetic conduction block to be magnetized by the magnet, and enabling the magnetic conduction plate and the magnetic conduction block to be fixed in an adsorption mode, so that the mounting frame is fixed on the fixing block; the integral assembly and disassembly of the forming platform are more convenient, quicker, time-saving and labor-saving;
2. a pressure sensor is arranged between the resin pool and the bedplate, so that the gravity of the resin pool is applied to a detection end of the pressure sensor, whether the resin pool is over-pressurized or not is monitored in real time through the detection of the pressure sensor in the printing process, and the machine is stopped immediately once the resin pool is over-pressurized, so that the printing body and the resin pool are prevented from being damaged;
3. the traditional leveling method is to place the forming platform on a horizontal plane and then lock the forming platform, but when one fastener is locked, the lower bottom surface of the forming platform warps, so the invention firstly fixedly connects the leveling bottom plate with the backing plate, then tightly presses the lower bottom surface of the forming platform on the leveling bottom plate by the pressing block, and then fixedly connects the forming platform with the mounting frame, thereby ensuring the levelness of the lower bottom surface of the forming platform.
Drawings
FIG. 1 is a schematic diagram of the general structure of the present invention;
FIG. 2 is a cross-sectional view of the detachable structure of the present invention;
FIG. 3 is a magnetic field line profile when the magnetic switch of the present invention is closed;
FIG. 4 is a magnetic field line profile when the magnetic switch of the present invention is open;
FIG. 5 is a schematic structural view of the pressure detecting device of the present invention;
fig. 6 is a schematic structural view of the leveling device of the present invention.
In the figure, 1, a forming platform; 2. a mounting frame; 3. a fixed block; 4. a magnet; 5. a magnetic conduction block; 6. a magnetic conductive plate; 7. a magnetic shield plate; 8. a guide slope; 9. a linear module; 10. mounting a plate; 11. a pressure sensor; 12. a platen; 13. a base plate; 14. leveling the bottom plate; 15. briquetting; 16. a limiting clamping groove; 17. adjusting the long groove; 18. a connecting member.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1, the photocuring 3D printer includes a frame, a resin pool, a forming platform 1, a lifting driving mechanism, and a light source, the resin pool, the forming platform 1, the lifting driving mechanism, and the light source are arranged on the frame, the forming platform 1 is arranged above the resin pool, the light source is arranged below the resin pool, the lifting driving mechanism drives the forming platform 1 to lift in the resin pool, and the lifting driving mechanism includes a linear module 9.
As shown in fig. 6, the printer further includes a leveling device for adjusting the levelness of the forming platform 1, the forming platform 1 is disposed on the lifting driving mechanism through a mounting frame 2, the forming platform 1 is movably sleeved at the bottom of the mounting frame 2, a plurality of vertically disposed adjusting long grooves 17 are formed on the forming platform 1, a plurality of mounting screw holes corresponding to the adjusting long grooves 17 one by one are formed on the mounting frame 2, and the forming platform 1 is fixed on the mounting frame 2 through fasteners.
The leveling device comprises a leveling bottom plate 14, wherein the leveling bottom plate 14 is detachably arranged on a rack, a lifting driving mechanism drives a forming platform 1 to descend, the lower bottom surface of the forming platform 1 is attached to the upper surface of the leveling bottom plate 14, and a locking mechanism locks the forming platform 1 on the leveling bottom plate 14, so that the lower bottom surface of the forming platform 1 is kept attached to the upper surface of the leveling bottom plate 14.
As shown in fig. 2, forming platform 1 sets up on lift actuating mechanism through a detachable construction, detachable construction include fixed block 3, fixed block 3 links firmly through a connecting piece 18 and lift actuating mechanism's slider, forming platform 1 sets up on fixed block 3 through 2 horizontal slip of mounting bracket, still rotate in fixed block 3 and be equipped with a magnetic switch, through rotating this magnetic switch, make fixed block 3 and mounting bracket 2 can be adsorbed fixedly by the magnetization.
As shown in fig. 3 and 4, the magnetic switch includes a magnet 4, a magnetic block 5, and a magnetic conductive plate 6, both the magnetic block 5 and the magnetic conductive plate 6 can be magnetized by the magnet 4, the magnetic block 5 is fixedly connected to the fixed block 3, the magnetic conductive plate 6 is fixedly connected to the mounting frame 2, the magnetic conductive plate 6 covers the upper end surface of the magnetic block 5, a magnetic isolation plate 7 is disposed in the inner cavity of the magnetic block 5, the magnetic isolation plate 7 separates the magnetic block 5 into a left part and a right part, the magnet 4 is rotatably disposed on the magnetic isolation plate 7 through a rotating device, and the rotating device can drive the magnet 4 to rotate, so that the magnetic conductive plate 6 and the magnetic block 5 can be magnetized, adsorbed and fixed. The rotating device comprises a handle which is fixedly connected with the magnet 4.
When the magnet 4 is in a vertical state, the magnetic force lines are in the direction shown in fig. 3, and both the magnetic conduction plate 6 and the magnetic conduction block 5 cannot be magnetized; the magnet 4 is rotated to be in a horizontal state, the magnetic force lines are shown in figure 4, the magnetic conduction plate 6 and the magnetic conduction block 5 can be magnetized by the magnet 4, and the magnetic conduction plate 6 and the magnetic conduction block 5 are fixed in an adsorption mode, so that the mounting frame 2 is fixed on the fixing block 3.
The cross-sectional shape of mounting bracket 2 is the U-shaped of invering, is equipped with bilateral symmetry's two direction inclined planes 8 on fixed block 3, be equipped with the fitting surface corresponding with this direction inclined plane 8 on two inboard faces of mounting bracket 2, mounting bracket 2 compresses tightly down on fixed block 3 to it is spacing about making two direction inclined planes 8 and corresponding fitting surface laminating mutually to form. The cross-sectional shape of magnetic conduction board 6 is the U-shaped of invering, and magnetic conduction board 6 is fixed to be set up at the interior top surface of mounting bracket 2, and the U type opening part at magnetic conduction board 6 is established to 3 cards of fixed block, and the U type opening size of magnetic conduction board 6 and the overall dimension looks adaptation of above-mentioned magnetic conduction piece 5, in shaping platform 1 pushed fixed block 3 through mounting bracket 2, magnetic conduction board 6 can promote to the medial surface counterbalance with fixed block 3 to make the position of shaping platform 1 corresponding with the position in resin pond, around forming, control two ascending location in direction.
As shown in fig. 5, the frame is further provided with a pressure detection device on which the resin pool is disposed. Pressure measurement device include mounting panel 10, pressure sensor 11, a plurality of pressure sensor 11 are fixed to be set up on mounting panel 10, mounting panel 10 is fixed to be set up in the frame, pressure sensor 11's sense terminal is vertical up, resin pool gravity is exerted on pressure sensor 11's sense terminal. The frame on be fixed with a platen 12, platen 12 upper surface is opened has a mounting groove, the mounting panel 10 inlays and establishes in this mounting groove, the shape of mounting panel 10 and the shape looks adaptation of mounting groove. The four pressure sensors 11 are uniformly distributed at the four corners of the rectangular mounting plate 10. A backing plate 13 is arranged between the pressure sensor 11 and the resin pool, and the resin pool is detachably arranged on the backing plate 13.
As shown in fig. 6, the locking mechanism includes pressing blocks 15, the leveling base plate 14 is detachably disposed on the base plate 13, the two pressing blocks 15 are symmetrically disposed on the leveling base plate 14, the pressing blocks 15 are provided with limiting slots 16, the limiting slots 16 of the two pressing blocks 15 face to each other, the left and right ends of the forming platform 1 are respectively embedded in the two limiting slots 16, and the two pressing blocks 15 are detachably connected to the leveling base plate 14. The limiting clamping groove 16 penetrates through the pressing block 15 in the length direction, the cross section of the limiting clamping groove 16 is in a right trapezoid shape, the lower half part of the forming platform 1 is in two right trapezoid shapes of bilateral symmetry, and the sizes of the left end and the right end of the forming platform 1 are matched with the sizes of the two limiting clamping grooves 16.
The invention relates to a leveling method of a photocuring 3D printer, which utilizes a leveling device of the photocuring 3D printer to adjust and comprises the following steps:
1. the resin pool is detached from the mat 13;
2. loosening the fastener on the long adjusting groove 17 of the forming platform 1;
3. fixing the leveling bottom plate 14 on the backing plate 13 through a fastener;
4. the lifting driving mechanism drives the forming platform 1 to descend, so that the forming platform 1 is naturally attached to the leveling bottom plate 14;
5. two pressing blocks 15 are fixed on the leveling bottom plate 14 through fasteners, so that the left end and the right end of the forming platform 1 are respectively embedded in two limiting clamping grooves 16, and the lower bottom surface of the forming platform 1 is kept in a fit state with the upper surface of the leveling bottom plate 14;
6. tightening the fastener on the long adjusting groove 17 of the forming platform 1;
7. and removing the two pressing blocks 15, driving the forming platform 1 to lift, and removing the leveling bottom plate 14.
It is to be understood that in the claims, the specification of the present invention, all "including … …" are to be interpreted in an open-ended sense, i.e., in a sense equivalent to "including at least … …", and not in a closed sense, i.e., in a sense not to be interpreted as "including only … …".
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. A photocuring 3D printer comprises a frame, a resin pool, a forming platform (1), a lifting driving mechanism and a light source, wherein the resin pool, the forming platform (1), the forming platform and the light source are arranged on the frame, the forming platform (1) is driven by the lifting driving mechanism to lift in the resin pool, the photocuring 3D printer is characterized by further comprising a leveling device, the leveling device is used for adjusting the levelness of the forming platform (1), the forming platform (1) is arranged on the lifting driving mechanism through an installation frame (2), the forming platform (1) is movably sleeved at the bottom of the installation frame (2), a locking structure fixes the forming platform (1) on the installation frame (2), the leveling device comprises a leveling bottom plate (14), the leveling bottom plate (14) is detachably arranged on the frame, the lifting driving mechanism drives the forming platform (1) to descend, the lower bottom surface of the forming platform (1) is attached to the upper surface of the leveling bottom plate (14), and the forming platform (1) is locked on the leveling bottom plate (14) through a locking mechanism, so that the lower bottom surface of the forming platform (1) is attached to the upper surface of the leveling bottom plate (14).
2. The photocuring 3D printer of claim 1, wherein the molding platform (1) is arranged on the lifting driving mechanism through a detachable structure, the detachable structure comprises a fixed block (3), the fixed block (3) is fixedly connected with a sliding block of the lifting driving mechanism through a connecting piece (18), the molding platform (1) is horizontally arranged on the fixed block (3) in a sliding manner through the mounting frame (2), a magnetic switch is further rotatably arranged in the fixed block (3), and the fixed block (3) and the mounting frame (2) can be fixed through magnetization and adsorption by rotating the magnetic switch.
3. The photocuring 3D printer of claim 2, wherein the magnetic switch comprises a magnet (4), a magnetic conduction block (5) and a magnetic conduction plate (6), the magnetic conduction block (5) and the magnetic conduction plate (6) can be magnetized by the magnet (4), the magnetic conduction block (5) is fixedly connected with the fixed block (3), the magnetic conduction plate (6) is fixedly connected with the mounting frame (2), the magnetic conduction plate (6) covers the upper end face of the magnetic conduction block (5), a magnetic separation plate (7) is arranged in the inner cavity of the magnetic conduction block (5), the magnetic separation plate (7) separates the magnetic conduction block (5) into a left part and a right part, the magnet (4) is rotatably arranged on the magnetic separation plate (7) through a rotating device, and the rotating device can drive the magnet (4) to rotate so that the magnetic conduction plate (6) and the magnetic conduction block (5) can be magnetized, adsorbed and fixed.
4. The photocuring 3D printer according to claim 2, wherein the cross-sectional shape of the mounting frame (2) is an inverted U-shape, two bilaterally symmetrical guide inclined planes (8) are arranged on the fixing block (3), matching surfaces corresponding to the guide inclined planes (8) are arranged on two inner side surfaces of the mounting frame (2), and the mounting frame (2) is pressed downwards on the fixing block (3) so that the two guide inclined planes (8) are attached to the corresponding matching surfaces to form left and right limiting.
5. The photocuring 3D printer of claim 3, characterized in that the cross-sectional shape of magnetic conduction plate (6) is an inverted U-shape, magnetic conduction plate (6) is fixedly arranged on the inner top surface of mounting bracket (2), fixing block (3) is arranged at the U-shaped opening of magnetic conduction plate (6) in a clamped manner, the U-shaped opening of magnetic conduction plate (6) is matched with the external dimension of the magnetic conduction block (5), the molding platform (1) is pushed into the fixing block (3) through mounting bracket (2), and the magnetic conduction plate (6) can be pushed to abut against the inner side surface of the fixing block (3) so that the position of the molding platform (1) corresponds to the position of the resin pool.
6. A light-curable 3D printer in accordance with claim 1, wherein the frame further comprises a backing plate (13), and the resin reservoir is detachably mounted on the backing plate (13).
7. A photocuring 3D printer according to claim 6, characterized in that the leveling base plate (14) is detachably arranged on the backing plate (13).
8. The photocuring 3D printer according to claim 1, wherein the locking mechanism comprises pressing blocks (15), the two pressing blocks (15) are symmetrically and fixedly arranged on the leveling bottom plate (14) in a left-right mode, the pressing blocks (15) are provided with limiting clamping grooves (16), the limiting clamping grooves (16) of the two pressing blocks (15) face to each other, the left end and the right end of the forming platform (1) are respectively embedded in the two limiting clamping grooves (16), and the two pressing blocks (15) are detachably connected with the leveling bottom plate (14).
9. The photocuring 3D printer according to claim 8, wherein the limiting clamping groove (16) penetrates through the pressing block (15) in the length direction, the limiting clamping groove (16) is right-angled trapezoid in cross section, the forming platform (1) is bilaterally symmetrical in shape of two right-angled trapezoids, the left and right ends of the forming platform (1) are matched with the two limiting clamping grooves (16) in size, the forming platform (1) is provided with a plurality of vertically arranged adjusting long grooves (17), and the mounting frame (2) is provided with a plurality of mounting screw holes which are in one-to-one correspondence with the adjusting long grooves (17).
10. A leveling method of a photocuring 3D printer, which is adjusted by using the photocuring 3D printer of any one of claims 1 to 9, characterized by comprising the steps of:
firstly, detaching a resin pool from a backing plate (13);
loosening the fastener on the long adjusting groove (17) of the forming platform (1);
fixing the leveling bottom plate (14) on the backing plate (13) through a fastener;
driving the forming platform (1) to descend by the lifting driving mechanism, and naturally attaching the forming platform (1) to the leveling bottom plate (14);
fixing two pressing blocks (15) on the leveling bottom plate (14) through fasteners to enable the left end and the right end of the forming platform (1) to be respectively embedded in the two limiting clamping grooves (16), so that the lower bottom surface of the forming platform (1) and the upper surface of the leveling bottom plate (14) are kept in a fit state;
sixthly, screwing the fastener on the long adjusting groove (17) of the forming platform (1);
seventhly, removing the two pressing blocks (15), driving the forming platform (1) to lift, and removing the leveling bottom plate (14).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111600101.9A CN114179355A (en) | 2021-12-24 | 2021-12-24 | Photocuring 3D printer and leveling method thereof |
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| CN202111600101.9A CN114179355A (en) | 2021-12-24 | 2021-12-24 | Photocuring 3D printer and leveling method thereof |
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| CN115091754A (en) * | 2022-06-14 | 2022-09-23 | 北华航天工业学院 | Printing platform adjusting device of three-dimensional printer |
| CN115157664A (en) * | 2022-07-20 | 2022-10-11 | 杭州喜马拉雅信息科技有限公司 | Pressure intelligent control type photocuring 3D printer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115157664A (en) * | 2022-07-20 | 2022-10-11 | 杭州喜马拉雅信息科技有限公司 | Pressure intelligent control type photocuring 3D printer |
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