CN113334772A - SLA3D printer self-cleaning scraper device and SLA3D printer - Google Patents
SLA3D printer self-cleaning scraper device and SLA3D printer Download PDFInfo
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- CN113334772A CN113334772A CN202110580204.7A CN202110580204A CN113334772A CN 113334772 A CN113334772 A CN 113334772A CN 202110580204 A CN202110580204 A CN 202110580204A CN 113334772 A CN113334772 A CN 113334772A
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- 238000004140 cleaning Methods 0.000 title claims abstract description 125
- 230000007246 mechanism Effects 0.000 claims abstract description 93
- 238000001179 sorption measurement Methods 0.000 claims abstract description 27
- 238000005520 cutting process Methods 0.000 claims abstract description 17
- 238000009434 installation Methods 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 6
- 230000006698 induction Effects 0.000 claims description 3
- 230000006872 improvement Effects 0.000 description 16
- 239000011347 resin Substances 0.000 description 13
- 229920005989 resin Polymers 0.000 description 13
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 238000010146 3D printing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000011086 high cleaning Methods 0.000 description 1
- 239000002002 slurry Substances 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
- B29C64/30—Auxiliary operations or equipment
- B29C64/35—Cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/16—Rigid blades, e.g. scrapers; Flexible blades, e.g. wipers
- B08B1/165—Scrapers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/001—Rapid manufacturing of 3D objects by additive depositing, agglomerating or laminating of material
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- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Handling Of Sheets (AREA)
Abstract
An SLA3D printer automatic cleaning scraper device and an SLA3D printer are arranged on a scraper support of a3D printer, and comprise a guide mechanism fixedly arranged on one side of the scraper support, which is far away from a scraper, a sliding mechanism movably arranged on the guide mechanism, a cleaning mechanism fixedly connected on the sliding mechanism, and a driving mechanism fixedly connected on the guide mechanism or the cleaning mechanism; the cleaning mechanism specifically comprises a cleaning support fixedly connected to the sliding mechanism, a base arranged on one side of the cleaning support close to the scraper, and a pair of cleaning blades arranged on one side of the base close to the first motor support and one side far away from the first motor support; the cleaning mechanism is provided with a cleaning blade which is tightly attached to the adsorption surface of the scraper, the cleaning blade is defined, the width of the adsorption surface of the scraper is D, the length of the cutting edge of the cleaning blade is D, if D is more than or equal to 2D and less than 2.2D, the cleaning blade is a double-edge blade; the driving mechanism drives the sliding mechanism to reciprocate along the adsorption surface of the scraper, so as to drive the cleaning blade to clean the adsorption surface of the scraper.
Description
Technical Field
The invention relates to the field of SLA3D printers, in particular to an automatic cleaning scraper device of an SLA3D printer and an SLA3D printer.
Background
The 3D printer is a rapid forming process, and a three-dimensional model is manufactured in a layered stacking mode. In the 3D printing process, material liquid such as photosensitive resin or photosensitive ceramic slurry needs to be coated layer by layer, and when the viscosity of the material liquid is high, the defects such as faults, incomplete coating or uneven thickness easily occur. To avoid the above-mentioned drawbacks, the layers are usually coated using a doctor blade mechanism to ensure the continuity, integrity and thickness uniformity of the coating.
And industrial grade SLA3D printer that adopts the vacuum adsorption scraper on the market all can have the scraper adsorption plane to have and remain cured resin after printing for a long time, if not in time clear up, can influence the precision of printing at the printing of scribbling in-process, even produce the phenomenon of collapsing the pot.
The mode on current washing scraper surface has two kinds, and the first kind is stretched into the resin with the hand, strikes off the scraper surface with the spatula and remains the resin, and this can make staff's hand be stained with the resin and be difficult to the clearance, and easy being cut by the scraper simultaneously is neither safe, also very troublesome simultaneously. The second is to remove the blade for cleaning, which is effective in cleaning the blade surface, but the blade needs to be re-calibrated for re-assembly, which is cumbersome to install and labor intensive.
Therefore, a device which can clean the scraper quickly and has high cleaning efficiency is urgently needed.
Disclosure of Invention
In order to solve the problems, the invention provides an automatic cleaning blade device of an SLA3D printer and an SLA3D printer, and the invention is realized by the following steps:
an SLA3D printer automatic cleaning scraper device is arranged on a scraper support of a3D printer and comprises a guide mechanism fixedly arranged on one side of the scraper support, which is far away from a scraper, a sliding mechanism movably arranged on the guide mechanism, a cleaning mechanism fixedly connected on the sliding mechanism, and a driving mechanism fixedly connected on the guide mechanism or the cleaning mechanism; the cleaning mechanism specifically comprises a cleaning support fixedly connected to the sliding mechanism, a base arranged on one side of the cleaning support close to the scraper, and a pair of cleaning blades arranged on the base; the cleaning mechanism is provided with a cleaning blade clinging to the adsorption surface of the scraper, the width of the adsorption surface of the scraper is defined as D, the length of a cutting edge of the cleaning blade is D, if D is more than or equal to 2D and less than 2.2D, the cleaning blade is a double-edge blade; the driving mechanism drives the sliding mechanism to reciprocate along the adsorption surface of the scraper, and then drives the cleaning blade to clean the adsorption surface of the scraper.
As a further improvement, the guide mechanism comprises a guide rail fixedly arranged on the surface of one side of the scraper support far away from the scraper, a first motor support fixedly arranged at one end of the scraper support, a screw rod support fixedly arranged at one end of the scraper support far away from the first motor support, and a first screw rod arranged between the first motor support and the screw rod support; the sliding mechanism also comprises a sliding block movably arranged on the guide rail and the first screw rod; the cleaning mechanism comprises a cleaning support fixedly connected to the sliding block, a base arranged on one side, close to the scraper, of the cleaning support, and a pair of cleaning blades arranged on one side, close to the first motor support, of the base and on one side, far away from the first motor support, of the base; the driving mechanism comprises a first motor fixedly connected to one side, away from the screw rod support, of the first motor support, and the first motor drives the first screw rod.
As a further improvement, the scraper support is close to one side of the motor support or far away from one side of the motor support is provided with an avoiding groove, and the width of the avoiding groove is not less than a pair of the distance between the main cutting edges of the cleaning blades.
As a further improvement, the cleaning support comprises a transverse rod part fixedly connected to the sliding block, a longitudinal rod part arranged at one end of the sliding block and far away from the transverse rod part, and a base arranged at the same side of the transverse rod part and far away from one end of the transverse rod part.
As a further improvement, a dovetail sliding groove is formed in one side, close to the scraper bracket, of the longitudinal rod part; a second motor support is arranged on one side, away from the scraper support, of the longitudinal and transverse rod part, a second motor is arranged on one side, away from the transverse rod part, of the second motor support, the second motor is connected with the base through a second screw rod, and the second screw rod penetrates through the transverse rod part; the base comprises a fixing part fixedly connected to one end, far away from the second motor, of the second lead screw, a dovetail part arranged on one side, close to the longitudinal rod part, of the fixing part, and an installation part arranged on one side, far away from the longitudinal rod part, of the fixing part, wherein the dovetail part is matched with the dovetail sliding groove, two sides, close to or far away from the first motor, of the installation part are bound towards one side, far away from the scraper, the installation part is of an isosceles terrace structure, and the cleaning blade is arranged on the inclined plane of the installation part; and a pre-tightening spring is sleeved on the periphery of the second screw rod.
As a further improvement, a sensor mechanism is arranged between the second motor bracket and the cross rod part; the sensor mechanism comprises a photoelectric sensor fixedly connected between the second motor support and the cross rod part and far away from one side of the second screw rod, and an induction metal sheet movably arranged on the second screw rod and close to one end of the second motor.
As a further improvement, the length of the inclined side of the bottom surface of the mounting part is defined as L, and D is less than or equal to L and less than or equal to 1.1D.
As a further improvement, the inclined plane of the installation part is provided with a plurality of threaded holes along the direction of the inclined edge of the bottom surface of the installation part in an array manner, the cleaning blade is provided with a plurality of through holes corresponding to the threaded holes, and the cleaning blade is detachably arranged on the inclined plane of the installation part through bolts.
The invention also provides an SLA3D printer, which comprises the SLA3D printer automatic cleaning blade device.
The invention has the beneficial effects that:
the scraper support of the 3D printer is provided with the guide mechanism fixedly arranged on one side, away from the scraper, of the scraper support, the sliding mechanism movably arranged on the guide mechanism, the cleaning mechanism fixedly connected to the sliding mechanism and the driving mechanism fixedly connected to the guide mechanism or the cleaning mechanism, so that the driving mechanism drives the sliding mechanism to reciprocate along the adsorption surface of the scraper, and further the adsorption surface of the scraper is cleaned. The worker does not need to stretch hands into the resin for cleaning or disassembling and cleaning, and the whole process is automated.
In addition, through setting up the two-sided cutting washing blade that cutting edge length is the scraper adsorbed surface width twice at least, realized that same piece washing blade can recycle at least four times, reduced the cost.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention in an installed state.
Fig. 2 is a schematic view of the overall structure of the present invention in an installed state.
Fig. 3 is an enlarged view of a part of the structure of the present invention.
FIG. 4 is a side view of the cleaning mechanism of the present invention.
FIG. 5 is a schematic view of the overall structure of the cleaning mechanism of the present invention.
Fig. 6 is a schematic diagram of the overall explosion structure of the cleaning mechanism of the present invention.
Fig. 7 is a side view of the base and blade of the present invention in an exploded configuration.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
The first embodiment,
An SLA3D printer automatic cleaning scraper device is arranged on a scraper support 101 of a3D printer, and comprises a guide mechanism 20 fixedly arranged on one side of the scraper support 101, which is far away from a scraper 102, a sliding mechanism 30 movably arranged on the guide mechanism 20, a cleaning mechanism 40 fixedly connected on the sliding mechanism 30, and a driving mechanism 50 fixedly connected on the guide mechanism 20 or the cleaning mechanism 40; the cleaning mechanism 40 specifically includes a cleaning support 401 fixedly connected to the sliding mechanism 30, a base 402 disposed on a side of the cleaning support 401 close to the scraper 102, and a pair of cleaning blades 403 disposed on the base 402; the cleaning mechanism 40 is provided with a cleaning blade 403 tightly attached to the adsorption surface of the scraper 102, the width of the adsorption surface of the scraper 102 is defined as D, the length of the cutting edge of the cleaning blade 403 is D, D is not less than 2D and is less than 2.2D, and the cleaning blade 403 is a double-edged blade; the driving mechanism 50 drives the sliding mechanism 30 to reciprocate along the suction surface of the scraper 102, so as to drive the cleaning blade 403 to clean the suction surface of the scraper 102.
The guide mechanism 20 fixedly arranged on one side, far away from the scraper 102, of the scraper support 101 of the 3D printer, the sliding mechanism 30 movably arranged on the guide mechanism 20, the cleaning mechanism 40 fixedly connected onto the sliding mechanism 30 and the driving mechanism 50 fixedly connected onto the guide mechanism 20 or the cleaning mechanism 40 are arranged on the scraper support 101 of the 3D printer, so that the driving mechanism 50 drives the sliding mechanism 30 to reciprocate along the adsorption surface of the scraper 102, and further the adsorption surface of the scraper 102 is cleaned. The worker does not need to stretch hands into the resin for cleaning or disassembling and cleaning, and the whole process is automated. In addition, by arranging the double-sided cutting and cleaning blade 403 with the cutting edge length at least twice as long as the width of the adsorption surface of the scraper 102, the same cleaning blade 403 can be repeatedly used for at least four times, and the cost is reduced.
As a further improvement, the guiding mechanism 20 includes a guide rail 201 fixedly disposed on a side surface of the scraper support 101 away from the scraper 102, a first motor support 202 fixedly disposed at one end of the scraper support 101, a screw rod support 203 fixedly disposed at one end of the scraper support 101 away from the first motor support 202, and a first screw rod 204 disposed between the first motor support 202 and the screw rod support 203; the sliding mechanism 30 further includes a sliding block movably disposed on the guide rail 201 and the first lead screw 204; the cleaning mechanism 40 comprises a cleaning bracket 401 fixedly connected to the sliding block, a base 402 arranged on one side of the cleaning bracket 401 close to the scraper 102, and a pair of cleaning blades 403 arranged on one side of the base 402 close to the first motor bracket 202 and far away from the first motor bracket 202, wherein the base 402 is positioned below the adsorption surface of the scraper 102; the driving mechanism 50 includes a first motor 501 fixedly connected to a side of the first motor bracket 202 away from the lead screw bracket 203, and the first motor 501 drives the first lead screw 204.
Because the base 402 is located below the suction surface of the blade 102, the blade 102 cannot move during the 3D printing process without avoiding or yielding. Therefore, as a further improvement, the scraper support 101 is provided with an avoiding groove 103 near the first motor support 202 side or far from the first motor support 202 side, and the width of the avoiding groove 103 is not less than the distance between the main cutting edges of the pair of cleaning blades 403.
As a further improvement, the cleaning support 401 includes a cross rod portion 4011 fixedly connected to the slide block, a vertical rod portion 4012 disposed on one end of the slide block far away from the cross rod portion 4011, and the base 402 is disposed on one end of the vertical rod portion 4012 far away from the cross rod portion 4011 and on the same side as the cross rod portion 4011.
In order to change the contact force or the cutting depth of the cleaning blade 403 with the suction surface of the scraper 102. As a further improvement, a dovetail sliding groove 4014 is formed on one side of the longitudinal rod part 4012 close to the scraper bracket 101; a second motor support 4013 is arranged on one side, away from the scraper support 101, of the crossbar portion 4011, a second motor 502 is arranged on one side, away from the crossbar portion 4011, of the second motor support 4013, the second motor 502 is connected with the base 402 through a second lead screw 4015, and the second lead screw 4015 penetrates through the crossbar portion 4011; the base 402 comprises a fixing part 4021 screwed to the second screw 4015 far away from one end of the second motor 502, a dovetail part 4023 arranged on one side, close to the vertical rod part 4012, of the fixing part 4021, an installation part 4022 arranged on one side, far away from the vertical rod part 4012, of the fixing part 4021, the dovetail part 4023 is matched with the dovetail sliding groove 4014, two sides, close to or far away from the first motor 501, of the installation part 4022 are bound towards one side, far away from the scraper 102, the installation part 4022 is of a waist-like terrace structure, and the cleaning blade 403 is arranged on the inclined plane of the installation part 4022;
an included angle between the cleaning blade 403 and the horizontal plane direction is defined as alpha, that is, an included angle between the inclined plane of the mounting portion 4022 and the bottom edge is defined as alpha; in the cutting process of the tool, the angle of the tool affects the life of the tool and the roughness of the surface to be processed, so the following experiment is made with respect to the selection of the installation angle of the cleaning blade 403: setting a plurality of mounting bases with different alpha angles, mounting the cleaning cutter 403 on the mounting bases, then cleaning the scraper with the same processing amount, recording the residual resin on the adsorption surface of the scraper 102 after one cleaning action and five cleaning actions, recording the service life of the cutter, performing experiments for 10 times under the condition of the same angle, and taking the average number of the records. Where M is defined as the mass of the blade 102, M is defined as the mass of the blade 102 weighed after processing, M-M is the mass of the residual resin, and Δ M is the residual resin amount before cleaning1The residual resin after N times of cleaning is DeltamN+1。
The results of the experiment are shown in table 1:
table 1.
As can be seen from table 1, when 30 ° < α < 45 °, the cleaning efficiency is first improved and then tends to be smooth, but the service life of the tool is reduced, and when α is 50 °, the cleaning efficiency is rather reduced due to the shortened tool life. This is because the cleaning insert 403 used is a thin insert and is not a tool used for turning, and therefore, as the rake angle of the tool increases, the normal force applied to the cutting edge on the insert increases, and the cutting edge is more likely to be broken.
Then 30 ° < α < 45 °, preferably α ═ 36 °.
Since the second screw 4015 is screwed with the fixing part 4021, the threads are not tightly engaged with each other, and if the thickness of the resin remaining on the suction surface of the scraper 102 is greatly changed, the distance between the cleaning blade 403 and the suction surface of the scraper 102 is changed due to the gap between the threads, so that the residual resin cannot be cleaned cleanly. In order to ensure that the distance between the cleaning blade 403 and the adsorption surface of the scraper 102 is not changed in the cleaning process, that is, the thread gap between the screwed part of the second screw 4015 and the fixing part 4021 is always on the same side. As a further improvement, a pre-tightening spring 4016 is sleeved on the outer periphery of the second screw 4015; the pre-tensioned spring 4016 is normally in tension.
The base 402 can drive the second screw 4015 to complete the ascending or descending motion within the range of the dovetail sliding slot 4014 through the second motor 502, that is, the contact force between the cleaning blade 403 and the suction surface of the scraper 102 is driven to change.
In order to accurately control the distance between the cleaning blade 403 and the adsorption surface of the scraper 102, as a further improvement, a sensor mechanism 60 is arranged between the second motor support 4013 and the cross rod portion 4011, and the sensor mechanism 60 includes a photoelectric sensor 601 fixedly connected between the second motor support 4013 and the cross rod portion 4011 and far away from one side of the second lead screw 4015, and an induction metal sheet 602 movably arranged on the second lead screw 4015 and close to one end of the second motor 502.
During initial assembly, the sensing metal sheet 602 is located below the photoelectric sensor 601, after the assembly is completed, the second motor 502 starts to work to drive the sensing metal sheet 602 and the base 402 to move upwards and horizontally along the second lead screw 4015 until the photoelectric sensor 601 senses the sensing metal sheet 602, the second motor 502 stops working, and at this time, the cleaning blade 403 is in contact with the adsorption surface of the scraper 102.
The cleaning blade 403 is mainly stressed in a direction perpendicular to the main cutting edge during the cutting process, because the cleaning blade 403 is a thin double-edged blade. In order to prevent the blade from being broken due to stress, thereby affecting the cleaning efficiency and even damaging the adsorption surface of the scraper 102, as a further improvement, the length of the inclined side of the bottom surface of the mounting part 4022 is defined as L, and then D is not less than L and not more than 1.1D, so that the blade body of the cleaning blade 403 can be completely supported by the supporting force from the mounting part 4022, and the service life of the cutter is prevented from being shortened.
As a further improvement, a plurality of threaded holes are arranged on the inclined surface of the mounting portion 4022 in an array manner along the oblique edge direction of the bottom surface of the mounting portion 4022, a plurality of through holes corresponding to the threaded holes are formed in the cleaning blade 403, and the cleaning blade 403 is detachably arranged on the inclined surface of the mounting portion 4022 through bolts.
Example II,
The invention also provides an SLA3D printer, which comprises the automatic cleaning blade device of the SLA3D printer in the first embodiment.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. An SLA3D printer automatic cleaning scraper device is characterized in that the scraper device is arranged on a scraper bracket of a3D printer and comprises,
the cleaning device comprises a guide mechanism fixedly arranged on one side of the scraper support far away from the scraper, a sliding mechanism movably arranged on the guide mechanism, a cleaning mechanism fixedly connected on the sliding mechanism, and a driving mechanism fixedly connected on the guide mechanism or the cleaning mechanism;
the cleaning mechanism specifically comprises a cleaning support fixedly connected to the sliding mechanism, a base arranged on one side of the cleaning support close to the scraper, and a pair of cleaning blades arranged on the base;
the cleaning mechanism is provided with a cleaning blade clinging to the adsorption surface of the scraper, the width of the adsorption surface of the scraper is defined as D, the length of a cutting edge of the cleaning blade is D, if D is more than or equal to 2D and less than 2.2D, the cleaning blade is a double-edge blade;
the driving mechanism drives the sliding mechanism to reciprocate along the adsorption surface of the scraper, and then drives the cleaning blade to clean the adsorption surface of the scraper.
2. The automatic cleaning blade device for SLA3D printer according to claim 1,
the guide mechanism comprises a guide rail fixedly arranged on the surface of one side, away from the scraper, of the scraper support, a first motor support fixedly arranged at one end of the scraper support, a screw rod support fixedly arranged at one end, away from the first motor support, of the scraper support, and a first screw rod arranged between the first motor support and the screw rod support;
the sliding mechanism comprises a sliding block movably arranged on the guide rail and the first screw rod, and the cleaning bracket is fixedly connected to the sliding block;
the driving mechanism comprises a first motor fixedly connected to one side, away from the screw rod support, of the first motor support, and the first motor drives the first screw rod.
3. The automatic cleaning scraper device for SLA3D printers according to claim 2, wherein the scraper support is provided with an avoiding groove near the motor support side or far from the motor support side, and the width of the avoiding groove is not less than the distance between the main cutting edges of a pair of the cleaning blades.
4. The automatic cleaning scraper device for the SLA3D printer according to claim 2, wherein the cleaning support comprises a cross rod fixedly connected to the sliding block, a longitudinal rod part arranged at one end of the cross rod part far away from the sliding block, and the base is arranged at one end of the longitudinal rod part far away from the cross rod part and at the same side as the cross rod part.
5. The automatic cleaning scraper device for the SLA3D printer according to claim 4, wherein a dovetail chute is formed on one side of the longitudinal rod part close to the scraper bracket;
a second motor support is arranged on one side, away from the scraper support, of the longitudinal and transverse rod part, a second motor is arranged on one side, away from the transverse rod part, of the second motor support, the second motor is connected with the base through a second screw rod, and the second screw rod penetrates through the transverse rod part;
the base comprises a fixing part fixedly connected to one end, far away from the second motor, of the second lead screw, a dovetail part arranged on one side, close to the longitudinal rod part, of the fixing part, and an installation part arranged on one side, far away from the longitudinal rod part, of the fixing part, wherein the dovetail part is matched with the dovetail sliding groove, two sides, close to or far away from the first motor, of the installation part are bound towards one side, far away from the scraper, the installation part is of an isosceles terrace structure, and the cleaning blade is arranged on the inclined plane of the installation part;
and a pre-tightening spring is sleeved on the periphery of the second screw rod.
6. The automatic cleaning scraper device for SLA3D printers according to claim 5, wherein a sensor mechanism is arranged between the second motor bracket and the cross bar part;
the sensor mechanism comprises a photoelectric sensor fixedly connected between the second motor support and the cross rod part and far away from one side of the second screw rod, and an induction metal sheet movably arranged on the second screw rod and close to one end of the second motor.
7. The automatic cleaning scraper device for SLA3D printer of claim 5, wherein L is the length of the bottom surface slant of the mounting portion, and D is less than or equal to L is less than or equal to 1.1D.
8. The automatic cleaning scraper device for the SLA3D printer according to claim 5, wherein a plurality of threaded holes are arranged on the inclined surface of the mounting part along the direction of the inclined edge of the bottom surface of the mounting part in an array manner, a plurality of through holes corresponding to the threaded holes are formed in the cleaning blade, and the cleaning blade is detachably arranged on the inclined surface of the mounting part through bolts.
9. An SLA3D printer, characterized in that, includes an SLA3D printer self-cleaning blade device as claimed in any one of claims 1-8.
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| CN202110580204.7A CN113334772A (en) | 2021-05-26 | 2021-05-26 | SLA3D printer self-cleaning scraper device and SLA3D printer |
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| CN202110580204.7A CN113334772A (en) | 2021-05-26 | 2021-05-26 | SLA3D printer self-cleaning scraper device and SLA3D printer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114030054A (en) * | 2021-09-22 | 2022-02-11 | 上海科技大学 | Ceramic 3D printer spreading scraper cleaning device and real-time cleaning method thereof |
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