CN113524669A - Powder falling and scraping structure suitable for double-laser printing equipment - Google Patents
Powder falling and scraping structure suitable for double-laser printing equipment Download PDFInfo
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- CN113524669A CN113524669A CN202110769165.5A CN202110769165A CN113524669A CN 113524669 A CN113524669 A CN 113524669A CN 202110769165 A CN202110769165 A CN 202110769165A CN 113524669 A CN113524669 A CN 113524669A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/50—Means for feeding of material, e.g. heads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/60—Planarisation devices; Compression devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/60—Planarisation devices; Compression devices
- B22F12/67—Blades
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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
- B29C64/141—Processes of additive manufacturing using only solid materials
- B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
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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
- B29C64/205—Means for applying layers
-
- 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
- B29C64/205—Means for applying layers
- B29C64/214—Doctor blades
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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
- B29C64/307—Handling of material to be used in additive manufacturing
- B29C64/321—Feeding
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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
-
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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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)
- Screen Printers (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a powder falling and scraping structure suitable for double-laser printing equipment in the technical field of 3D printing, which comprises a support frame, wherein a power mechanism is fixedly arranged on the support frame, a storage box and a printing box are arranged at the upper end of the power mechanism, a material receiving box is arranged on the left side of the storage box, a stabilizing plate is fixedly arranged at the upper end of the material receiving box, and a transmission mechanism is fixedly arranged on the left side of the upper end surface of the stabilizing plate; the right side of the transmission mechanism is provided with a material supplementing mechanism; a scraping box is arranged on the right side of the material supplementing mechanism, and a stirring mechanism is arranged in the scraping box; the lower end of the scraping box is slidably provided with a conical scraping hopper, and the right side of the scraping box is provided with a vibrating mechanism; the floating mechanism is arranged on the right side of the vibration mechanism; the conical scraping hopper and the vibration mechanism are also fixedly provided with a lifting mechanism; a trigger is arranged on the right side of the floating mechanism; through the arrangement, the problems that when the powder amount is too small during scraping of the existing equipment, the powder amount cannot be supplemented in time, the thickness of the scraped powder layer is uneven, and the scraped powder is loose, so that the printing quality is reduced directly can be solved.
Description
Technical Field
The invention relates to the technical field of 3D printing, in particular to a powder falling and scraping structure suitable for double-laser printing equipment.
Background
The 3D printer is also called a three-dimensional printer, which is a machine of an additive manufacturing technology, i.e., a rapid prototyping technology. The laser sintering technology is to sinter fixed powder selectively and layer by laser and to superpose the sintered and molded solidified layers layer by layer to generate parts with required shapes.
In the prior art, when the powder scraping mechanism works, because the structures of layers to be printed are different during each printing, the printing thickness is different during each printing, which can cause different powder scraping amount for the powder scraping mechanism during each printing, and the powder scraping mechanism is usually a plate; only possess simple powder function of scraping, when the thickness of scraping the powder changes, scrape the whitewashed board and can not possess every thickness and all scrape that the powder is even, the even effect of texture, correspond, lead to, appear easily when actual laser printing and print a breach, or print a condition that intensity is not enough.
Based on the above, the invention designs a powder falling and scraping structure suitable for double-laser printing equipment to solve the above problems.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme: a powder falling and scraping structure suitable for double-laser printing equipment comprises a support frame, wherein a power mechanism controlled by a PLC is fixedly arranged on the support frame, a material storage box and a printing box are arranged at the upper end of the power mechanism, a material receiving box is arranged on the side surface of the printing box, a stabilizing plate is fixedly arranged at the upper end of the material receiving box, and a transmission mechanism used for providing a power source for scraping powder is fixedly arranged on the left side of the upper end surface of the stabilizing plate; the right side of the transmission mechanism is provided with a material supplementing mechanism which can recycle the powder in time; a scraping box is arranged on the right side of the material supplementing mechanism and is arranged on the transmission mechanism in a sliding manner, and a stirring mechanism which enables powder in the scraping box to keep fluidity all the time is arranged in the scraping box; the lower end of the scraping box is slidably provided with a conical scraping hopper, and the right side of the scraping box is provided with a vibrating mechanism capable of uniformly compacting and flattening powder; a floating mechanism for scraping powder is arranged on the right side of the vibration mechanism; the conical scraping hopper and the vibration mechanism are also fixedly provided with lifting mechanisms for improving the powder scraping efficiency; the right side of the troweling mechanism is provided with a trigger (the direction is shown in full text in fig. 1).
As a further scheme of the invention, the stirring mechanism comprises a gear, the gear is meshed with the transmission mechanism, a rotating shaft is coaxially and fixedly arranged on the rear end face of the gear, the rotating shaft is rotatably arranged in the scraping box, circular grooves are symmetrically formed in the circumferential end face of the rotating shaft, an insertion rod is further slidably arranged in the rotating shaft, a pressing strip is arranged at the upper end of the rotating shaft, a first air spring is fixedly arranged on the upper end face of the pressing strip, the upper end of the first air spring is fixedly arranged on the upper end face of the inner side of the scraping box, a strip is further fixedly arranged on the upper end face of the pressing strip, and the strip is slidably arranged on the upper end of the scraping box.
As a further scheme of the present invention, the vibration mechanism includes a vibration plate, a second gas spring is fixedly disposed on an upper end surface of the vibration plate, an upper end portion of the second gas spring is fixedly disposed on the troweling mechanism, a first L-shaped plate is fixedly disposed on a left end surface of the troweling mechanism, a long shaft is rotatably disposed at a lower end of the first L-shaped plate, a cam is fixedly disposed at a rear end of the long shaft, a first transmission belt is disposed at a front end of the long shaft, and another end of the transmission belt is disposed on the rotating shaft.
As a further scheme of the invention, the feeding mechanism comprises a second L-shaped plate, the upper end of the second L-shaped plate is provided with a long groove, an arc-shaped plate is arranged in the long groove in a sliding manner, and the arc-shaped plate is also arranged in a curved groove arranged on the transmission mechanism in a sliding manner; a push plate is arranged in the arc plate in a sliding manner, the left end of the push plate is arranged in an arc groove formed in the second L-shaped plate in a sliding manner, and the lower end of the arc plate is provided with the material receiving box; the left end of the scraping box is rotatably provided with a turning plate, the right side of the turning plate is provided with a third gas spring, and the lower end of the turning plate is provided with a short square block.
As a further scheme of the invention, the floating mechanism comprises a connecting plate, a rotating wheel is rotatably arranged at the lower end of the connecting plate, a short groove is formed in the left end face of the connecting plate, and the first L-shaped plate is slidably arranged in the short groove.
As a further scheme of the invention, the lifting mechanism comprises a long plate, the long plate is fixedly arranged on the conical scraping hopper, and the right side end of the long plate is positioned at the lower end of the long shaft; and a trigger plate is fixedly arranged on the connecting plate.
As a further aspect of the present invention, the transmission mechanism includes a motor. The motor is controlled by the PLC, second transmission belts are arranged on the front side and the rear side of the motor, the scraping box is fixedly arranged on the second transmission belts, and teeth are arranged on the outer end faces of the second transmission belts; a guide rail is arranged on the inner side of the transmission belt, a fixed plate is arranged on the inner side of the guide rail, a first groove is formed in the fixed plate, and the scraping box is arranged in the first groove in a sliding mode; the fixed plate is provided with a guide rail, the guide rail is provided with a first groove, the lower end of the first groove is provided with a second groove, the fixed plate and the guide rail are both provided with the second groove, and the rotating shaft is arranged in the second groove in a sliding mode.
Compared with the prior art, the invention has the beneficial effects that:
1. through the arrangement of the vibration mechanism, when the scraping box moves leftwards, the inserted bar sliding in the rotating shaft rotates along with the rotating shaft in the scraping box, then the upper end of the inserted bar moves to the lower end of the pressing bar, so that the pressing bar pushes the inserted bar to move downwards in the rotating shaft, then the lower end of the inserted link is inserted into the powder and rotates along with the rotating shaft, so that the powder in the conical scraping hopper is turned over, thereby keeping the powder in the circulation, preventing the powder from leaking out of the bottom of the conical scraper hopper due to poor powder circulation, and further preventing the powder from being compensated for the powder lack area at the lower end in time, thereby causing uneven powder at the upper end of the printing box to influence the printing effect, being beneficial to ensuring the effect of even and compact thickness and texture of the scraped powder when the thickness of the scraped powder is changed, further, the situation that a printed piece is easy to be notched or the strength of the printed piece is insufficient during laser printing is prevented; in order to reduce the shaking of the pressing strip, the inserting rod is stably extruded downwards, so that a strip fixedly connected with the upper end of the pressing strip always vertically slides up and down on the upper end of the scraping box, the pressing strip is favorably kept stable, and the shaking is prevented when the pressing strip is contacted with the rotating shaft.
2. Through the arrangement of the stirring mechanism, when the scraping box moves leftwards, the rotating shaft drives the long shaft which drives the cam to rotate, then when the cam rotates, the cam downwards extrudes the rotating plate, then the vibrating plate downwards extrudes and beats powder quickly, so that the gap between the powder is reduced, the flatness of the powder is improved, and meanwhile, the conical scraping hopper is positioned at the left end of the vibrating plate, and the powder can flow out of the conical scraping hopper, so that a sunken part can be filled, but the filled powder is loose; pat through the extrusion of vibrations board this moment to be favorable to the powder of filling in time to fuse powder on every side, and then be favorable to improving the printing effect.
3. Through the setting of scraping the material mechanism, thereby when scraping the material box and moving left, the runner of connecting plate lower extreme is rotating when moving left and is floating the powder this moment, because the runner is located the vibrations board right side, simultaneously the vibrations board will produce a strip of impression on the powder with the edge of vibrations board when vibrations, in order to prevent that the impression from influencing the printing effect, the runner is when the process is whitewashed this moment, thereby the upper surface of the powder that will shake is once floated, because the powder at this moment has received vibrations extrusion, so when the runner passes through the surface of powder this moment, the powder can not scraped scattered this moment, thereby be favorable to floating the impression on powder surface, and then be favorable to making and improve the printing effect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 3 is a schematic cross-sectional view of the overall structure of the present invention;
FIG. 4 is an enlarged view of the structure at B in FIG. 3 according to the present invention;
FIG. 5 is an enlarged view of the structure at C of FIG. 3 according to the present invention;
FIG. 6 is a schematic view of a vibration mechanism according to the present invention;
FIG. 7 is an enlarged view of the structure of FIG. 6 at D in accordance with the present invention;
FIG. 8 is a schematic cross-sectional view of the interior of the scraper box of the present invention;
FIG. 9 is an enlarged view of the structure at E in FIG. 8 according to the present invention;
FIG. 10 is an enlarged view of the structure at F in FIG. 8 according to the present invention;
fig. 11 is a schematic structural view of the front side end of the scraper box of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
the device comprises a support frame 1, a power mechanism 2, a storage box 3, a printing box 4, a material receiving box 5, a long plate 6, a scraping box 7, a conical scraping hopper 8, a trigger 9, a gear 10, a rotating shaft 11, a circular groove 12, an inserted link 13, a pressing bar 14, a first air spring 15, a long strip 16, a vibration plate 17, a second air spring 18, a first L-shaped plate 19, a long shaft 20, a cam 21, a first transmission belt 22, a second L-shaped plate 23, a long groove 24, an arc-shaped plate 25, a push plate 26, an arc groove 27, a connecting plate 28, a rotating wheel 29, a short groove 30, a stabilizing plate 31, a motor 32, a second transmission belt 33, a guide rail 34, a fixing plate 35, a first groove 36, a second groove 37, a turnover plate 38, a third air spring 39, a short block 40, a trigger plate 41 and a bent groove 42.
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1-11, the present invention provides a technical solution: a powder falling and scraping structure suitable for double-laser printing equipment comprises a support frame 1, wherein a power mechanism 2 controlled by a PLC is fixedly arranged on the support frame 1, a material storage box 3 and a printing box 4 are arranged at the upper end of the power mechanism 2, a material receiving box 5 is arranged on the side surface of the printing box 4, a stabilizing plate 31 is fixedly arranged at the upper end of the material receiving box 5, and a transmission mechanism used for providing a power source for scraping powder is fixedly arranged on the left side of the upper end surface of the stabilizing plate 31; the right side of the transmission mechanism is provided with a material supplementing mechanism which can recycle the powder in time; a scraping box 7 is arranged on the right side of the material supplementing mechanism, the scraping box 7 is arranged on the transmission mechanism in a sliding mode, and a stirring mechanism enabling powder in the scraping box 7 to keep fluidity all the time is arranged in the scraping box 7; the lower end of the scraping box 7 is slidably provided with a conical scraping hopper 8, and the right side of the scraping box 7 is provided with a vibrating mechanism capable of uniformly compacting and flattening powder; a floating mechanism for scraping powder is arranged on the right side of the vibration mechanism; the conical scraping hopper 8 and the vibration mechanism are also fixedly provided with lifting mechanisms for improving the powder scraping efficiency; the right side of the troweling mechanism is provided with a trigger 9 (the direction of which is shown in full text in fig. 1).
As a further scheme of the invention, the stirring mechanism comprises a gear 10, the gear 10 is meshed with the transmission mechanism, a rotating shaft 11 is coaxially and fixedly arranged on the rear end face of the gear 10, the rotating shaft 11 is rotatably arranged in the scraping box 7, circular grooves 12 are symmetrically formed in the circumferential end face of the rotating shaft 11, an inserted rod 13 is further slidably arranged in the rotating shaft 11, a pressing strip 14 is arranged at the upper end of the rotating shaft 11, a first air spring 15 is fixedly arranged on the upper end face of the pressing strip 14, the upper end of the first air spring 15 is fixedly arranged on the upper end face of the inner side of the scraping box 7, a strip 16 is further fixedly arranged on the upper end face of the pressing strip 14, and the strip 16 is slidably arranged on the upper end of the scraping box 7; when the scraping box 7 moves leftwards, the gear 10 fixedly connected with the front end of the rotating shaft 11 is engaged with the teeth at the outer end of the second transmission belt 33 when the rotating shaft 11 rotatably arranged in the scraping box 7 slides leftwards (shown by combining with figures 3, 5, 8, 9, 10 and 11), so that the rotating shaft 11 rotates, then when the rotating shaft 11 rotates, the inserted rod 13 sliding in the rotating shaft 11 rotates along with the rotating shaft 11 in the scraping box 7, then the upper end of the inserted rod 13 moves to the lower end of the pressing strip 14, at this time, the pressing strip 14 is pushed downwards by the first air spring 15, so that the pressing strip 14 pushes the inserted rod 13 to move downwards in the rotating shaft 11, then the lower end of the inserted rod 13 is inserted into the powder, and along with the continuous rotation of the rotating shaft 11, so that the powder in the conical scraping hopper 8 is turned over, thereby the powder is kept to keep liquidity and the powder is prevented from leaking from the bottom of the conical scraping hopper 8 inconveniently, therefore, powder cannot be compensated for the powder-lacking area at the lower end in time, and the uneven powder at the upper end of the printing box 4 influences the printing effect; meanwhile, the bottom end part of the inserted rod 13 is contacted with the inner end surface of the conical scraping hopper 8 and the inner end surface of the scraping box 7 one by one, so that the inserted rod is gradually contracted towards the inside of the rotating shaft 11, meanwhile, along with the rotation of the rotating shaft 11, the pressing strip 14 at the upper end of the rotating shaft 11 is jacked upwards by the rotating shaft 11, so that the first air spring 15 is compressed, meanwhile, in order to reduce the shaking of the pressing strip 14, the inserted rod 13 is stably downwards extruded, so that the strip 16 fixedly connected with the upper end of the pressing strip 14 always vertically slides up and down at the upper end of the scraping box 7, and the pressing strip 14 is favorably kept stable and prevented from shaking when being contacted with the rotating shaft 11.
As a further scheme of the present invention, the vibration mechanism includes a vibration plate 17, a second gas spring 18 is fixedly arranged on the upper end surface of the vibration plate 17, the upper end portion of the second gas spring 18 is fixedly arranged on the trowelling mechanism, a first L-shaped plate 19 is fixedly arranged on the left end surface of the trowelling mechanism, the lower end of the first L-shaped plate 19 is rotatably provided with a long shaft 20, the rear end of the long shaft 20 is fixedly provided with a cam 21, the front end of the long shaft 20 is provided with a first transmission belt 22, and the other end of the transmission belt is arranged on the rotating shaft 11; when the powder scraping device is used, when the scraping box 7 moves leftwards (shown in a combined figure 6 and a combined figure 7), when the rotating shaft 11 rotates, the rotating shaft 11 drives the rotating shaft 11 of the long shaft 20 through the first transmission belt 22, so that the cam 21 at the rear side end of the long shaft 20 rotates, then when the cam 21 rotates, the cam 21 downwards extrudes the rotating plate, at the moment, the second gas spring 18 is stretched (the second gas spring 18 plays a resetting role for the vibrating plate 17), then the vibrating plate 17 downwards and quickly extrudes and beats powder, so that gaps among the powder are reduced, the flatness of the powder is improved, meanwhile, the conical scraping hopper 8 is positioned at the left side end of the vibrating plate 17, the powder can flow out of the conical scraping hopper 8, so that a concave part can be filled, and the filled powder is relatively loose; at this moment, the powder is squeezed and flapped through the vibrating plate 17, so that the powder filled in is favorably fused with the powder on the periphery in time, and the printing effect is favorably improved.
As a further scheme of the invention, the feeding mechanism comprises a second L-shaped plate 23, the upper end of the second L-shaped plate 23 is provided with a long groove 24, an arc-shaped plate 25 is slidably arranged in the long groove 24, and the arc-shaped plate 25 is further slidably arranged in a curved groove 42 formed in the transmission mechanism; a push plate 26 is arranged in the arc plate 25 in a sliding manner, the left end of the push plate 26 is arranged in an arc groove 27 formed in the second L-shaped plate 23 in a sliding manner, and a material receiving box 5 is arranged at the lower end of the arc plate 25; a turning plate 38 is rotatably arranged at the left end of the scraper box 7, a third gas spring 39 is arranged at the right side of the turning plate 38, and a short square block 40 is arranged at the lower end of the turning plate 38; when the scraping box 7 moves leftwards (as shown in fig. 3 and 4), the short block 40 fixedly connected with the left end of the scraping box 7 pushes the arc-shaped plate 25 to move leftwards, the arc-shaped block moves upwards in the curved groove 42, the upper end of the arc-shaped block moves upwards in the long groove 24, the push plate 26 arranged in the arc-shaped block in a sliding mode moves upwards in the arc-shaped groove 27, the push plate 26 moves upwards along with the push plate 26, the push plate 26 slides rightwards in the arc-shaped block, powder on the end face of the right side of the arc-shaped block is pushed rightwards, the turning plate 38 at the left end of the scraping box 7 is turned over towards the inside of the scraping box 7, the third air spring 39 is compressed (the third air spring 39 plays a resetting role for the turning plate 38), and powder on the push plate 26 is conveyed into the scraping box 7, so that the powder in the scraping box 7 is supplemented in time, meanwhile, the lower end of the arc-shaped stop block is provided with the material receiving box 5, so that the rest powder falls into the material receiving box 5 to be collected.
As a further scheme of the invention, the trowelling mechanism comprises a connecting plate 28, a rotating wheel 29 is rotatably arranged at the lower end of the connecting plate 28, a short groove 30 is formed in the left end face of the connecting plate 28, and a first L-shaped plate 19 is slidably arranged in the short groove 30; when the powder scraping box 7 moves leftwards (see the figures 3, 5, 6 and 7 in combination), the rotating wheel 29 at the lower end of the connecting plate 28 rotates to flatten the powder when moving leftwards, because the rotating wheel 29 is positioned at the right side of the vibrating plate 17, and simultaneously the vibrating plate 17 generates a piece of mark on the powder by the edge of the vibrating plate 17 when vibrating, in order to prevent the mark from influencing the printing effect, at the moment, the rotating wheel 29 passes through the powder, so that the upper surface of the powder which has vibrated is flattened once, because the powder at the moment is extruded by vibration, at the moment, when the rotating wheel 29 passes through the surface of the powder, the powder cannot be scraped and scattered, the mark flattening on the surface of the powder is facilitated, and the printing effect is improved.
As a further scheme of the invention, the lifting mechanism comprises a long plate 6, the long plate 6 is fixedly arranged on the conical scraping hopper 8, and the right side end of the long plate 6 is positioned at the lower end of the long shaft 20; a trigger plate 41 is fixedly arranged on the connecting plate 28; when the scraping box 7 moves leftwards (see fig. 6 and 7), the long plate 6 fixedly connected to the tapered scraping hopper 8 abuts against the end face of the arc-shaped stopper, the long plate 6 is lifted upwards along with the rising of the arc-shaped stopper, so that the tapered stopper moves upwards in the scraping box 7, the long shaft 20 is lifted upwards at the right end of the long plate 6, the first L-shaped plate 19 fixedly connected to the long shaft 20 moves upwards in the short groove 30 and is adsorbed by the trigger plate 41, until the trigger plate 41 moves rightwards to contact the trigger 9, the trigger plate 41 no longer adsorbs the first L-shaped plate 19, and the tapered scraping hopper 8 and the vibration plate 17 reset; and then the toper at this moment scrapes hopper 8 and the lower terminal surface of vibrations board 17 will the upward movement, thereby break away from the up end of the powder that has screeded, then when motor 32 moves left through second drive belt 33, scrape this moment that magazine 7 will be quick reset right, thereby avoided the toper to scrape hopper 8 and vibrations board 17 and made the powder that has screeded when reseing right and scrape out the impression, thereby the effect is printed in the influence, simultaneously because the toper is scraped hopper 8 and the up end of vibrations board 17 and no longer contacts the powder this moment, so can reset fast this moment, and then improve the work efficiency of printing.
As a further aspect of the invention, the transmission mechanism includes a motor 32. The motor 32 is controlled by the PLC, the front side and the rear side of the motor 32 are respectively provided with a second transmission belt 33, the scraping box 7 is fixedly arranged on the second transmission belts 33, and the outer end face of each second transmission belt 33 is provided with teeth; a guide rail 34 is arranged on the inner side of the transmission belt, a fixing plate 35 is arranged on the inner side of the guide rail 34, a first groove 36 is formed in the fixing plate 35, and the scraping box 7 is arranged in the first groove 36 in a sliding mode; the lower end of the first groove 36 is provided with a second groove 37, the fixing plate 35 and the guide rail 34 are both provided with the second groove 37, and the rotating shaft 11 is arranged in the second groove 37 in a sliding manner; when the powder scraping device is used, the motor 32 drives the powder scraping box 7 to move leftwards in the first groove 36 and the second groove 37 through the second transmission belt 33 (shown in the combined drawings of fig. 1 and 2), and in order to keep the powder scraping box 7 stable during powder scraping, the powder scraping box 7 reciprocates on the guide rail 34, so that powder at the upper end of the storage box is scraped leftwards, and then the powder is scraped into the upper end of the printing box 4, and printing is performed.
The working principle is as follows: firstly, when printing is needed, the power mechanism 2 on the support frame 1 is controlled by the PLC, then the power mechanism 2 pushes the powder in the storage box 3 to move upwards, then the motor 32 drives the material scraping box 7 to move leftwards in the first groove 36 and the second groove 37 through the second transmission belt 33 (shown in the combination of the figures 1 and 2), in order to keep the material scraping box 7 stable during powder scraping, the material scraping box 7 reciprocates on the guide rail 34, so that the powder at the upper end of the storage box is scraped leftwards, and the powder is scraped into the upper end of the printing box 4 so as to be printed; meanwhile, when the scraping box 7 moves to the left (as shown in fig. 3, 5, 8, 9 and 10), when the rotating shaft 11 rotatably disposed in the scraping box 7 slides to the left, the gear 10 fixedly connected to the front end of the rotating shaft 11 is engaged with the teeth at the outer end of the second belt 33, so that the rotating shaft 11 rotates, then when the rotating shaft 11 rotates, the insert rod 13 sliding in the rotating shaft 11 rotates in the scraping box 7 along with the rotating shaft 11, and then the upper end of the insert rod 13 moves to the lower end of the bead 14, at this time, the bead 14 is pushed downwards by the first air spring 15, so that the bead 14 pushes the insert rod 13 to move downwards in the rotating shaft 11, and then the lower end of the insert rod 13 is inserted into the powder, and as the rotating shaft 11 continues to rotate, so that the powder in the tapered scraping hopper 8 is turned over, thereby keeping the powder flowability and preventing the powder from leaking from the bottom of the tapered scraping hopper 8, therefore, powder cannot be compensated for the powder-lacking area at the lower end in time, and the uneven powder at the upper end of the printing box 4 influences the printing effect; meanwhile, the bottom end part of the inserted rod 13 is gradually contacted with the inner end surface of the conical scraping hopper 8 and the inner end surface of the scraping box 7, so that the inserted rod gradually shrinks towards the inside of the rotating shaft 11, and simultaneously, along with the rotation of the rotating shaft 11, the pressing strip 14 at the upper end of the rotating shaft 11 is jacked upwards by the rotating shaft 11, so that the first air spring 15 is compressed, and meanwhile, in order to reduce the shaking of the pressing strip 14, the inserted rod 13 is stably downwards extruded, so that the strip 16 fixedly connected with the upper end of the pressing strip 14 always vertically slides up and down at the upper end of the scraping box 7, thereby being beneficial to keeping the stability of the pressing strip 14 and preventing the shaking generated when the inserted rod is contacted with the rotating shaft 11; when the scraping box 7 moves leftwards (shown in fig. 6 and 7), at the moment, when the rotating shaft 11 rotates, the rotating shaft 11 drives the rotating shaft 11 of the long shaft 20 through the first transmission belt 22, so that the cam 21 at the rear side end of the long shaft 20 rotates, then when the cam 21 rotates, the cam 21 downwards extrudes the rotating plate, at the moment, the second gas spring 18 is stretched (the second gas spring 18 plays a role in resetting for the vibrating plate 17), then the vibrating plate 17 downwards and rapidly extrudes and beats the powder, so that the gap between the powder is reduced, the flatness of the powder is improved, and meanwhile, as the conical scraping box 8 is positioned at the left side end of the vibrating plate 17, and the powder can flow out of the conical scraping box 8, the concave part can be filled, but the filled powder is loose; at the moment, the filled powder is timely fused with the surrounding powder through the extrusion and flapping of the vibrating plate 17, so that the printing effect is improved; meanwhile, when the scraping box 7 moves leftwards (as shown in fig. 3, 5, 6 and 7), the rotating wheel 29 at the lower end of the connecting plate 28 rotates to flatten the powder when moving leftwards, because the rotating wheel 29 is positioned at the right side of the vibrating plate 17, and simultaneously the vibrating plate 17 generates a mark on the powder by the edge of the vibrating plate 17 when vibrating, in order to prevent the mark from influencing the printing effect, the rotating wheel 29 smoothes the upper surface of the vibrated powder when passing through the powder, and because the powder is subjected to vibrating extrusion at the moment, the powder cannot be scraped and scattered when the rotating wheel 29 passes through the surface of the powder, so that the mark flattening on the surface of the powder is facilitated, and the printing effect is further facilitated to be improved; meanwhile, when the scraping box 7 moves leftwards (see fig. 3 and 4), at this time, the short square block 40 fixedly connected with the left end of the scraping box 7 pushes the arc-shaped plate 25 to move leftwards, at this time, the arc-shaped stop block moves upwards in the curved groove 42, at the same time, the upper end of the arc-shaped stop block moves upwards in the long groove 24, at the same time, the push plate 26 arranged in the arc-shaped stop block in a sliding manner moves upwards in the arc-shaped groove 27, then the push plate 26 moves upwards along with the push plate 26, so that the push plate 26 slides rightwards in the arc-shaped stop block, so that the powder on the right end surface of the arc-shaped stop block is pushed rightwards, then the turning plate 38 at the left end of the scraping box 7 is turned over towards the inside of the scraping box 7, at this time, the third gas spring 39 is compressed (the third gas spring 39 plays a resetting role for the turning plate 38), so that the powder on the push plate 26 is sent into the scraping box 7, so that the powder in the scraping box 7 is supplemented in time, and at the lower end of the arc-shaped stop block is provided with the material receiving box 5, so that the rest powder falls into the material receiving box 5 for collection; meanwhile, when the scraping box 7 moves leftwards (see fig. 6 and 7), the long plate 6 fixedly connected to the tapered scraping hopper 8 abuts against the end surface on the side of the arc-shaped stopper, and along with the rising of the arc-shaped stopper, the long plate 6 is lifted upwards, so that the tapered stopper moves upwards in the scraping box 7, and simultaneously the right end of the long plate 6 lifts the long shaft 20 upwards, so that the first L-shaped plate 19 fixedly connected to the long shaft 20 moves upwards in the short groove 30 and is adsorbed by the trigger plate 41, until the trigger plate 41 moves rightwards to contact the trigger 9, the trigger plate 41 no longer adsorbs the first L-shaped plate 19, so that the tapered scraping hopper 8 and the vibration plate 17 reset; and then the lower terminal surface that hopper 8 and vibrations board 17 were scraped to the toper this moment will the upward movement, thereby break away from the up end of the powder that has screeded, then when motor 32 moved left through second drive belt 33, scrape this moment that magazine 7 will be quick reset right, thereby avoided the toper to scrape hopper 8 and vibrations board 17 and made the impression of scraping of the powder that has screeded when reseing right, thereby the effect is printed in the influence, simultaneously because the toper is scraped hopper 8 and vibrations board 17 and is no longer contacted the up end of powder this moment, so can reset fast this moment, and then improve the work efficiency of printing (the orientation is shown according to full space width figure 1 direction).
Claims (7)
1. The powder falling and scraping structure suitable for the double-laser printing equipment comprises a support frame (1) and is characterized in that a power mechanism (2) controlled by a PLC is fixedly arranged on the support frame (1), a storage box (3) and a printing box (4) are arranged at the upper end of the power mechanism (2), a material receiving box (5) is arranged on the side surface of the printing box (4), a stabilizing plate (31) is fixedly arranged at the upper end of the material receiving box (5), and a transmission mechanism for providing a power source for scraping powder is fixedly arranged on the left side of the upper end surface of the stabilizing plate (31); the right side of the transmission mechanism is provided with a material supplementing mechanism which can recycle the powder in time; a scraping box (7) is arranged on the right side of the material supplementing mechanism, the scraping box (7) is arranged on the transmission mechanism in a sliding mode, and a stirring mechanism enabling powder in the scraping box (7) to keep fluidity all the time is arranged in the scraping box (7); the lower end of the scraping box (7) is slidably provided with a conical scraping hopper (8), and the right side of the scraping box (7) is provided with a vibrating mechanism capable of uniformly compacting and flattening powder; a floating mechanism for scraping powder is arranged on the right side of the vibration mechanism; the conical scraping hopper (8) and the vibration mechanism are also fixedly provided with a lifting mechanism for improving the powder scraping efficiency; and a trigger (9) is arranged on the right side of the floating mechanism.
2. The powder falling and scraping structure suitable for the double-laser printing equipment as claimed in claim 1, wherein: rabbling mechanism includes gear (10), gear (10) with the drive mechanism meshing sets up, gear (10) rear end face coaxial line is fixed and is equipped with pivot (11), pivot (11) are rotated and are established scrape in magazine (7), round slot (12) have been seted up to pivot (11) circumference terminal surface symmetry, it is equipped with inserted bar (13) still to slide in pivot (11), pivot (11) upper end is equipped with layering (14), layering (14) up end is fixed and is equipped with first gas spring (15), fixed establishing in first gas spring (15) upper end is scraped magazine (7) inboard up end, layering (14) up end is still fixed and is equipped with rectangular (16), rectangular (16) slide and establish scrape magazine (7) upper end.
3. The powder falling and scraping structure suitable for the double-laser printing equipment as claimed in claim 2, wherein: vibrations mechanism includes vibrations board (17), the fixed second air spring (18) that is equipped with of vibrations board (17) up end, second air spring (18) upper end is fixed to be established floating mechanism is last, floating mechanism fixes on the left end face and is equipped with first L shaped plate (19), first L shaped plate (19) lower extreme rotates and is equipped with major axis (20), major axis (20) rear end is fixed and is equipped with cam (21), major axis (20) front end is equipped with first drive belt (22), the drive belt other end is established pivot (11) are last.
4. The powder falling and scraping structure suitable for the double-laser printing equipment as claimed in claim 3, wherein: the feeding mechanism comprises a second L-shaped plate (23), the upper end of the second L-shaped plate (23) is provided with a long groove (24), an arc-shaped plate (25) is arranged in the long groove (24) in a sliding manner, and the arc-shaped plate (25) is also arranged in a bent groove (42) formed in the transmission mechanism in a sliding manner; a push plate (26) is arranged in the arc plate (25) in a sliding manner, the left end of the push plate (26) is arranged in an arc groove (27) formed in the second L-shaped plate (23) in a sliding manner, and the lower end of the arc plate (25) is provided with the material receiving box (5); the left end of the scraper box (7) is rotatably provided with a turning plate (38), the right side of the turning plate (38) is provided with a third gas spring (39), and the lower end of the turning plate (38) is provided with a short square block (40).
5. The powder falling and scraping structure suitable for the double-laser printing equipment as claimed in claim 4, wherein: the floating mechanism comprises a connecting plate (28), a rotating wheel (29) is arranged at the lower end of the connecting plate (28) in a rotating mode, a short groove (30) is formed in the left end face of the connecting plate (28), and the first L-shaped plate (19) is arranged in the short groove (30) in a sliding mode.
6. The powder falling and scraping structure suitable for the double-laser printing equipment as claimed in claim 5, wherein: the lifting mechanism comprises a long plate (6), the long plate (6) is fixedly arranged on the conical scraping hopper (8), and the right side end of the long plate (6) is positioned at the lower end of the long shaft (20); and a trigger plate (41) is fixedly arranged on the connecting plate (28).
7. The powder falling and scraping structure suitable for the double-laser printing equipment as claimed in claim 2, wherein: the transmission mechanism comprises a motor (32), the motor (32) is controlled by a PLC, second transmission belts (33) are arranged on the front side and the rear side of the motor (32), the scraping box (7) is fixedly arranged on the second transmission belts (33), and teeth are arranged on the outer end faces of the second transmission belts (33); a guide rail (34) is arranged on the inner side of the transmission belt, a fixing plate (35) is arranged on the inner side of the guide rail (34), a first groove (36) is formed in the fixing plate (35), and the scraping box (7) is arranged in the first groove (36) in a sliding manner; first groove (36) lower extreme is equipped with second groove (37), fixed plate (35) with all seted up on guide rail (34) second groove (37), it is equipped with to slide in second groove (37) pivot (11).
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| CN202110769165.5A CN113524669B (en) | 2021-07-07 | 2021-07-07 | Powder falling and scraping structure suitable for double-laser printing equipment |
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| CN202110769165.5A CN113524669B (en) | 2021-07-07 | 2021-07-07 | Powder falling and scraping structure suitable for double-laser printing equipment |
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| CN113524669B (en) | 2023-05-16 |
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