CN110978507B - Powder paving device for full-color powder 3D printing - Google Patents

Powder paving device for full-color powder 3D printing Download PDF

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Publication number
CN110978507B
CN110978507B CN201911341280.1A CN201911341280A CN110978507B CN 110978507 B CN110978507 B CN 110978507B CN 201911341280 A CN201911341280 A CN 201911341280A CN 110978507 B CN110978507 B CN 110978507B
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powder
storage box
groups
wall
guide pipe
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CN201911341280.1A
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CN110978507A (en
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汤兵
张豹
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Anhui Bohe Three Dimensional Science And Technology Co ltd
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Anhui Bohe Three Dimensional Science And Technology Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00Additive 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
    • B29C64/10Processes of additive manufacturing
    • B29C64/165Processes of additive manufacturing using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00Additive 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
    • B29C64/20Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/205Means for applying layers
    • B29C64/214Doctor blades
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00Additive 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
    • B29C64/20Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/205Means for applying layers
    • B29C64/218Rollers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00Additive 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
    • B29C64/20Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/255Enclosures for the building material, e.g. powder containers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00Additive 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
    • B29C64/30Auxiliary operations or equipment
    • B29C64/307Handling of material to be used in additive manufacturing
    • B29C64/321Feeding
    • B29C64/336Feeding of two or more materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE 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
    • B33Y30/00Apparatus for additive manufacturing; Details thereof or accessories therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE 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
    • B33Y40/00Auxiliary operations or equipment, e.g. for material handling

Abstract

The invention discloses a full-color powder 3D printing powder spreading device which comprises a storage assembly for storing powder materials, a moving assembly for pushing the storage box to move left and right, a material pushing assembly for preventing material blockage and compacting the powder materials after material spreading and a powder spreading assembly for flattening, wherein the storage assembly comprises a storage box for storing the powder materials, two groups of feeding pipes for feeding, an electric gate valve for cutting or communicating the material discharging and a material guide pipe for discharging, the moving assembly comprises a supporting frame for supporting, two groups of chutes and two groups of sliding blocks for guiding and limiting, a forward and reverse rotation motor for driving and a ball screw connected with the storage box, and the material pushing assembly comprises an electric push rod for providing power, a pressing block for compacting the powder materials and a plurality of material shifting rods for shifting the materials. The invention realizes the loosening of powder material and the extrusion after the material injection, avoids the material blockage and enhances the compactness of the powder material in the printing groove.

Description

Powder paving device for full-color powder 3D printing
Technical Field
The invention relates to the technical field of 3D printing powder paving, in particular to a powder paving device for full-color powder 3D printing.
Background
The 3D printer is also called a three-dimensional printer, and is a machine of an accumulative manufacturing technology, i.e. a rapid prototyping technology, the working principle of the 3D printer is basically the same as that of a common printer, printing materials are superposed layer by layer through computer control, and finally blueprints on a computer are changed into real objects.
Full-color 3D prints as the one of printing, generally utilizes the cooperation of the various mixing of colors glue of gypsum powder material cooperation, prints through the successive layer, and every prints the one deck, prints the groove and will descend a bit, then paves the material, carries out the printing process on next step, and then accomplishes holistic printing process.
Present shop's powder generally drives the storage case through drive arrangement and removes, make the lower part of storage case and the upper portion butt joint of printing the groove, make the inside material of storage case fall into the upper portion of printing the groove, then rethread drive arrangement makes the storage case from the upper portion of printing the groove, the running roller that utilizes the storage case lateral part shakeouts, accomplish the stone, but the inside of current storage case generally lacks the stirring to the material, the condition of card material appears easily, be unfavorable for the use, on the other hand, lack the extrusion behind the stone, lead to the stone comparatively loose, be unfavorable for subsequent printing.
Disclosure of Invention
The invention aims to provide a powder spreading device for full-color powder 3D printing, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a powder paving device that full-color powder 3D printed, includes:
the storage assembly comprises a storage box for storing powder materials, two groups of feeding pipes for feeding, an electric gate valve for cutting or communicating the materials to be discharged and a material guide pipe for discharging, wherein the two groups of feeding pipes are symmetrically arranged at the upper part of the storage box, the material guide pipe is arranged at the lower part of the storage box, and the electric gate valve is arranged at the side part of the material guide pipe;
the moving assembly is used for pushing the storage box to move left and right and comprises a supporting frame for supporting the storage box, two groups of chutes and two groups of sliders for guiding and limiting the storage box, a forward and reverse rotation motor for driving the storage box to move and a ball screw for being connected with the storage box, the two groups of chutes are respectively and symmetrically arranged on the inner side wall of the supporting frame, the two groups of sliders are respectively and slidably connected to the inner sides of the two groups of chutes, the storage box is arranged between the two groups of sliders, the forward and reverse rotation motor is arranged between the supporting frames through a motor base, the ball screw comprises a screw rod and a screw rod seat, the screw rod is in threaded connection with the screw rod seat, the screw rod is connected with the output end of the forward and reverse rotation motor through a coupler, and the screw rod seat is arranged on the side part of the storage box through a bolt;
the material pushing assembly is used for preventing material blockage and compacting powder materials after spreading, and comprises an electric push rod for providing power, a pressing block for compacting the powder materials and a plurality of material stirring rods for stirring the materials, the electric push rod is installed at the upper part of the storage box, the output end of the electric push rod penetrates through the central part of the upper wall of the storage box and extends into the storage box, the pressing block is installed at the output end of the electric push rod through a bolt, the pressing block is inserted into the inner side of the material guide pipe in a sliding mode, the side wall of the pressing block is in clearance fit with the inner wall of the material guide pipe, and the material stirring rods are all installed on the side part of the pressing block;
and be used for the shop's powder subassembly of shakeout, shop's powder subassembly including the link that is used for supporting, be used for with print the groove upper wall paste and scrape the scraper blade of material, be used for with print the groove upper wall paste and shakeout the roller of shakeout mutually, the link passes through the bolt and installs in the lateral part of storage case, the scraper blade is installed in the lower part of link, the roller of shakeout passes through the bearing and rotates and install between the link.
Preferably, the lower part of storage case is the infundibulate setting, the charge level indicator is installed to the lateral part of storage case, the inner wall of storage case is the smooth surface.
Preferably, the overlooking cross section of the material guide pipe is rectangular, and a sealing ring is arranged between the material guide pipe and the lower part of the material storage box.
Preferably, the inner walls of the sliding grooves and the outer walls of the sliding blocks are smooth surfaces, and the side-looking cross sections of the sliding blocks are arranged in a convex shape.
Preferably, the inner wall of support frame and the outer wall of storage case are clearance fit, the callus on the sole has all been welded to the lower part of support frame.
Preferably, the lateral view cross-section of briquetting is the triangle-shaped setting, the central axis coaxial setting of briquetting and electric putter's output.
Preferably, the lengths of the plurality of material stirring rods are sequentially reduced from the upper side part of the pressing block to the lower side part of the pressing block, and the end parts of the plurality of material stirring rods are in clearance fit with the inner wall of the material guide pipe.
Preferably, the side-view cross section of the scraper is triangular, and the lower wall of the scraper and the lower wall of the leveling roller are in the same horizontal plane.
Compared with the prior art, the invention has the beneficial effects that:
1. powder materials for printing are stored in the storage box, the material is conveniently supplemented into the storage box through the feeding pipe, the materials are cut off or communicated through the electric gate valve for discharging, and the storage box is used for being butted with the printing groove through the material guide pipe;
2. the screw rod is driven to rotate through the operation of a forward and reverse rotating motor, the rotation of the screw rod pushes the screw rod seat to move, and further the screw rod seat moves under the guiding and limiting effects of the sliding chute and the sliding block to drive the storage box to move, so that the lower part of the guide pipe is butted with the upper part of the printing groove, then the electric gate valve is opened, and the materials in the storage box fall to the upper part of the printing groove under the action of self weight;
3. the electric push rod is extended to drive the pressing block to move, the material stirring rod is driven to move in the process of moving the pressing block, the powder material is stirred by the movement of the material stirring rod to prevent material blockage, the pressing block continuously moves to the inner part of the material guide pipe to extrude the powder material, the compactness of the powder material is increased, and the material injection process is realized;
4. through the reversal of positive reverse motor for the passage breaks away from the upper portion of printing the groove, and at the in-process that breaks away from, the scraper blade is scraped the stone position, gets rid of unnecessary material, and through the further shakeout of spreading roller, effectual realization stone process.
Drawings
FIG. 1 is a schematic top cross-sectional view of the present invention;
FIG. 2 is a schematic side cross-sectional view of the present invention;
fig. 3 is a schematic side sectional view of the structure of the leveling roller of the present invention.
In the figure: 1. a material storage assembly; 101. a material storage box; 102. a feed pipe; 103. an electric gate valve; 104. a material guide pipe; 2. a moving assembly; 201. a support frame; 202. a chute; 203. a slider; 204. a positive and negative rotation motor; 205. a ball screw; 2051. a lead screw; 2052. a lead screw seat; 3. a material pushing assembly; 301. an electric push rod; 302. briquetting; 303. a material poking rod; 4. a powder paving component; 401. a connecting frame; 402. a squeegee; 403. a leveling roll; 5. a level gauge; 6. a seal ring; 7. a foot pad.
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. 1-3, the present invention provides a technical solution: the utility model provides a powder paving device that full-color powder 3D printed, includes: the storage assembly 1 is used for storing powder materials, the storage assembly 1 comprises a storage box 101 for storing powder materials, two groups of feeding pipes 102 for feeding, an electric gate valve 103 for cutting off or communicating the feeding materials and a material guide pipe 104 for discharging the materials, the two groups of feeding pipes 102 are symmetrically arranged on the upper part of the storage box 101, the material guide pipe 104 is arranged on the lower part of the storage box 101, the electric gate valve 103 is arranged on the side part of the material guide pipe 104, the lower part of the storage box 101 is arranged in a funnel shape, the side part of the storage box 101 is provided with a material level meter 5, the inner wall of the storage box 101 is a smooth surface, the overlooking section of the material guide pipe 104 is arranged in a rectangular shape, and a sealing ring 6 is arranged between the lower part of the material guide pipe 104 and the storage box 101;
the moving assembly 2 is used for pushing the storage box 101 to move left and right, the moving assembly 2 comprises a support frame 201 used for supporting the storage box 101, two groups of chutes 202 and two groups of sliders 203 used for guiding and limiting the storage box 101, a forward and reverse rotation motor 204 used for driving the storage box 101 to move and a ball screw 205 used for being connected with the storage box 101, the two groups of chutes 202 are respectively and symmetrically arranged on the inner side wall of the support frame 201, the two groups of sliders 203 are respectively and slidably connected with the inner sides of the two groups of chutes 202, the inner walls of the two groups of chutes 202 and the outer walls of the two groups of sliders 203 are both smooth surfaces, the side-looking cross sections of the two groups of sliders 203 are both arranged in a convex shape, the storage box 101 is arranged between the two groups of sliders 203, the forward and reverse rotation motor 204 is arranged between the support frame 201 through a motor base, the ball screw 205 comprises a screw shaft 2051 and a screw base 2052, the screw shaft 2051 is in threaded connection with the screw base 2052, and the screw shaft 2051 is connected with the output end of the forward and reverse rotation motor 204 through a shaft coupling, the screw seat 2052 is mounted on the side of the storage box 101 through bolts, the inner wall of the support frame 201 is in clearance fit with the outer wall of the storage box 101, and foot pads 7 are welded on the lower part of the support frame 201;
the material pushing component 3 is used for preventing material blockage and compacting the powder material after spreading, the material pushing component 3 comprises an electric push rod 301 used for providing power, a pressing block 302 for compacting powder materials and a plurality of material stirring rods 303 for stirring materials, wherein the electric push rod 301 is installed at the upper part of the storage box 101, the output end of the electric push rod 301 penetrates through the central part of the upper wall of the storage box 101 and extends into the storage box 101, the pressing block 302 is installed at the output end of the electric push rod 301 through bolts, the side view cross section of the pressing block 302 is arranged in a triangle shape, the pressing block 302 and the central shaft of the output end of the electric push rod 301 are coaxially arranged, the pressing block 302 is slidably inserted into the inner side of the material guide pipe 104, the side wall of the pressing block 302 is in clearance fit with the inner wall of the material guide pipe 104, the plurality of material stirring rods 303 are all installed at the side part of the pressing block 302, the lengths of the plurality of material stirring rods 303 are sequentially reduced from the upper side part of the pressing block to the lower side part of the pressing block 302, and the end parts of the plurality of material stirring rods 303 are in clearance fit with the inner wall of the material guide pipe 104;
and be used for the shop's powder subassembly 4 of shakeout, shop's powder subassembly 4 is including the link 401 that is used for supporting, be used for pasting with the printing tank upper wall and scrape the scraper blade 402 of material, the side view cross-section of scraper blade 402 is triangle-shaped setting, the lower wall of scraper blade 402 is in same horizontal plane with the lower wall of flattening roller 403, be used for pasting with the printing tank upper wall and flattening roller 403 of shakeout, link 401 passes through the bolt and installs in the lateral part of storage case 101, scraper blade 402 is installed in the lower part of link 401, flattening roller 403 passes through the bearing and rotates and install between link 401.
The working principle is as follows: powder materials for printing are stored in the storage box 101, the feeding pipe 102 is used for conveniently supplementing materials to the interior of the storage box 101, the electric gate valve 103 is used for cutting off or communicating the materials for discharging, the guide pipe 104 is used for being butted with a printing groove, the forward and reverse rotating motor 204 operates to drive the lead screw 2051 to rotate, the lead screw 2051 rotates to push the lead screw seat 2052 to move, and then the lead screw seat moves under the guiding and limiting effects of the chute 202 and the slide block 203 to drive the storage box 101 to move, so that the lower part of the guide pipe 104 is butted with the upper part of the printing groove, then the electric gate valve 103 is opened, and the materials in the storage box 101 fall to the upper part of the printing groove under the self-weight effect;
extension through electric putter 301 drives briquetting 302 and removes, the in-process that removes at briquetting 302 drives kickoff pole 303 and removes, the removal of kickoff pole 303 is stirred the powder material, prevent the putty, briquetting 302 continues to move to the inside of passage 104, extrude the powder material, increase the closely knit degree of powder material, realize annotating the material process, reversal through positive reverse motor 204, make passage 104 break away from the upper portion of print tank, at the in-process that breaks away from, scraper blade 402 scrapes the stone position, get rid of unnecessary material, and further shakeout through flattening roller 403, effectual realization stone process.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a powder paving device that full-color powder 3D printed which characterized in that includes:
the storage assembly (1) is used for storing powder materials, the storage assembly (1) comprises a storage box (101) for storing the powder materials, two groups of feeding pipes (102) for feeding, an electric gate valve (103) for cutting off or communicating the materials to be discharged and a material guide pipe (104) for discharging the materials, the two groups of feeding pipes (102) are symmetrically arranged at the upper part of the storage box (101), the material guide pipe (104) is arranged at the lower part of the storage box (101), and the electric gate valve (103) is arranged at the side part of the material guide pipe (104);
the moving assembly (2) is used for pushing the storage box (101) to move left and right, the moving assembly (2) comprises a support frame (201) used for supporting the storage box (101), two groups of chutes (202) and two groups of sliders (203) used for guiding and limiting the storage box (101), a forward and reverse rotation motor (204) used for driving the storage box (101) to move and a ball screw (205) used for being connected with the storage box (101), the two groups of chutes (202) are respectively and symmetrically arranged on the inner side wall of the support frame (201), the two groups of sliders (203) are both connected to the inner sides of the two groups of chutes (202) in a sliding mode, the storage box (101) is arranged between the two groups of sliders (203), the forward and reverse rotation motor (204) is arranged between the support frame (201) through a motor base, the ball screw (205) comprises a screw (2051) and a screw base (2052), and the screw (2051) is in threaded connection with the screw base (2052), the screw rod (2051) is connected with the output end of the forward and reverse rotation motor (204) through a coupler, and the screw rod seat (2052) is installed on the side part of the material storage box (101) through a bolt;
the material pushing assembly (3) is used for preventing material blockage and compacting powder materials after material spreading, the material pushing assembly (3) comprises an electric push rod (301) used for providing power, a pressing block (302) used for compacting the powder materials and a plurality of material stirring rods (303) used for stirring the materials, the electric push rod (301) is installed at the upper part of the material storage box (101), the output end of the electric push rod (301) penetrates through the central part of the upper wall of the material storage box (101) and extends into the material storage box (101), the pressing block (302) is installed at the output end of the electric push rod (301) through bolts, the pressing block (302) is inserted into the inner side of the material guide pipe (104) in a sliding mode, the side wall of the pressing block (302) is in clearance fit with the inner wall of the material guide pipe (104), and the plurality of material stirring rods (303) are installed on the side part of the pressing block (302);
and a shop's powder subassembly (4) for shakeout, shop's powder subassembly (4) including link (401) that are used for supporting, be used for pasting and scraping scraper blade (402) of material with the print tank upper wall, be used for pasting and shakeout roller (403) with the print tank upper wall, link (401) are installed in the lateral part of storage case (101) through the bolt, the lower part in link (401) is installed in scraper blade (402), shakeout roller (403) are installed between link (401) through the bearing rotation.
2. The powder paving device for full-color powder 3D printing according to claim 1, characterized in that: the lower part of storage case (101) is the funnel-shaped setting, charge level indicator (5) are installed to the lateral part of storage case (101), the inner wall of storage case (101) is the smooth surface.
3. The powder paving device for full-color powder 3D printing according to claim 1, characterized in that: the overlook cross-section of the material guide pipe (104) is arranged in a rectangular shape, and a sealing ring (6) is arranged between the material guide pipe (104) and the lower part of the material storage box (101).
4. The powder paving device for full-color powder 3D printing according to claim 1, characterized in that: the inner wall of the two groups of sliding grooves (202) and the outer wall of the two groups of sliding blocks (203) are smooth surfaces, and the side-looking cross sections of the two groups of sliding blocks (203) are arranged in a convex shape.
5. The powder paving device for full-color powder 3D printing according to claim 1, characterized in that: the inner wall of support frame (201) is clearance fit with the outer wall of storage case (101), callus on the sole (7) have all been welded to the lower part of support frame (201).
6. The powder paving device for full-color powder 3D printing according to claim 1, characterized in that: the side view cross-section of briquetting (302) is the triangle-shaped setting, briquetting (302) and the coaxial setting of the center pin of electric putter's (301) output.
7. The powder paving device for full-color powder 3D printing according to claim 1, characterized in that: the lengths of the plurality of material stirring rods (303) are sequentially reduced from the upper side part of the pressing block to the lower side part of the pressing block (302), and the end parts of the plurality of material stirring rods (303) are in clearance fit with the inner wall of the material guide pipe (104).
8. The powder paving device for full-color powder 3D printing according to claim 1, characterized in that: the side-view cross section of the scraper (402) is triangular, and the lower wall of the scraper (402) and the lower wall of the leveling roller (403) are in the same horizontal plane.
CN201911341280.1A 2019-12-24 2019-12-24 Powder paving device for full-color powder 3D printing Active CN110978507B (en)

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CN206416524U (en) * 2016-12-28 2017-08-18 广东五维科技有限公司 A kind of full-color 3D printer based on planar coloured inkjet printing
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