CN108262477B - Powder paving mechanism of 3D printer with fan-shaped structure - Google Patents

Powder paving mechanism of 3D printer with fan-shaped structure Download PDF

Info

Publication number
CN108262477B
CN108262477B CN201810339677.6A CN201810339677A CN108262477B CN 108262477 B CN108262477 B CN 108262477B CN 201810339677 A CN201810339677 A CN 201810339677A CN 108262477 B CN108262477 B CN 108262477B
Authority
CN
China
Prior art keywords
assembly
hopper
material bearing
limiting
powder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201810339677.6A
Other languages
Chinese (zh)
Other versions
CN108262477A (en
Inventor
王甫
段贤勇
张新建
牛莉
张成林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Technical College of Mechanical and Electrical Engineering
Original Assignee
Anhui Technical College of Mechanical and Electrical Engineering
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui Technical College of Mechanical and Electrical Engineering filed Critical Anhui Technical College of Mechanical and Electrical Engineering
Priority to CN201810339677.6A priority Critical patent/CN108262477B/en
Publication of CN108262477A publication Critical patent/CN108262477A/en
Application granted granted Critical
Publication of CN108262477B publication Critical patent/CN108262477B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/20—Direct sintering or melting
    • 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
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • 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
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/30—Process control
    • 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
    • B22F12/22—Driving means
    • B22F12/224—Driving means for motion along a direction within the plane of a layer
    • 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
    • B22F12/22—Driving means
    • B22F12/226—Driving means for rotary motion
    • 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
    • B22F12/90—Means for process control, e.g. cameras or sensors
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/003—Apparatus, e.g. furnaces
    • 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
    • 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
    • B22F12/22—Driving means
    • B22F12/222—Driving means for motion along a direction orthogonal to the plane of a layer
    • 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
    • B22F12/30—Platforms or substrates
    • 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
    • B22F12/40—Radiation means
    • B22F12/46—Radiation means with translatory movement
    • 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
    • B22F12/52—Hoppers
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Analytical Chemistry (AREA)

Abstract

The invention relates to the technical field of 3D printing, in particular to a powder spreading mechanism of a 3D printer with a fan-shaped structure, which comprises a powder spreading mechanism, a second driving mechanism for driving the powder spreading mechanism to rotate and a control device, wherein the control device comprises a controller and a sensor assembly electrically connected with the controller, the powder spreading mechanism comprises a material bearing assembly for bearing materials and a limiting assembly for limiting the blanking amount, the second driving mechanism comprises an annular gear and a meshing assembly meshed with the annular gear, the limiting assembly is arranged in the material bearing assembly, the meshing assembly is fixedly arranged on the material bearing assembly, and the meshing assembly, the material bearing assembly and the limiting assembly are electrically connected with the controller.

Description

Powder paving mechanism of 3D printer with fan-shaped structure
Technical Field
The invention relates to the technical field of 3D printing, in particular to a powder paving mechanism of a 3D printer with a fan-shaped structure.
Background
The 3D printing is one kind of fast forming technology, and is one kind of technology of constructing object with powdered metal, plastic or other adhesive material based on digital model file in layer-by-layer printing mode.
The 3D printing is usually implemented by using a digital material printer, and is often used for manufacturing models in the fields of mold manufacturing, industrial design and the like, and then is gradually used for directly manufacturing some products, so that the powder spreading mechanism of the existing printing device is mostly in a horizontal sliding motion mode, the whole printing platform is paved with powder every time, and the metal powder required by the size of each printed article is the same, so that most of the metal powder does not play a role, and the use of the metal powder is wasted.
Disclosure of Invention
The invention aims to provide a powder spreading mechanism of a 3D printer with a fan-shaped structure, aiming at the defects of the prior art.
In order to solve the problems, the invention provides the following technical scheme:
the utility model provides a shop's powder mechanism of fan-shaped structure's 3D printer, includes powder mechanism, is used for driving the rotatory second actuating mechanism and the controlling means of powder mechanism that fall, controlling means including the controller and with controller electric connection's sensor subassembly, powder mechanism falls including the material subassembly that holds that is used for holding the material and the restriction subassembly that is used for restricting blanking volume, second actuating mechanism including circular-arc ring gear and with the meshing subassembly of ring gear meshing, the restriction subassembly sets up in holding the material subassembly, meshing subassembly fixed mounting is on holding the material subassembly, meshing subassembly, material subassembly and restriction subassembly all with controller electric connection.
Further, the material bearing assembly comprises a material bearing hopper and a feeding assembly, wherein the material bearing hopper is horizontally arranged and is of a strip shape, and the area of the longitudinal section of the material bearing hopper from the circle center of the lifting table to the arc edge direction of the lifting table along the center line of the material bearing hopper is gradually increased.
Further, the feeding assembly comprises a spiral feeding rod horizontally arranged in the receiving hopper and a first rotating motor fixedly arranged on the receiving hopper, the axis of the spiral feeding rod coincides with the central line of the receiving hopper, and one end of the spiral feeding rod is fixedly connected with an output shaft of the first rotating motor.
Further, the limiting assembly comprises a limiting roller arranged in the hopper and a second rotating motor for driving the limiting roller to rotate, the limiting roller is a long-strip-shaped cone, the small end of the limiting roller is parallel to the center line of the spiral feeding rod, the limiting roller is arranged right below the spiral feeding rod, the output end of the second rotating motor is fixedly connected with the small end of the limiting roller, and the axis of the second rotating motor coincides with the axis of the limiting roller.
Further, the conical surface of the limiting roller is provided with a plurality of quantitative grooves, all the quantitative grooves are distributed along the equal angular difference of the axis of the limiting roller, the quantitative grooves are long-strip-shaped grooves which are in a semicircle cone shape, and the small ends of the quantitative grooves are in a circle center pointing to the lifting platform.
Further, the inner gear ring is fixedly arranged on the shell, the inner gear ring is horizontally arranged, the circle center of the inner gear ring is arranged right above the lifting platform, and the big end of the material receiving hopper is provided with a rotating wheel which is in sliding fit with the bottom of the inner gear ring.
Further, the meshing assembly comprises a gear and a third rotating motor, wherein the gear and the third rotating motor are arranged on the material receiving hopper, the third rotating motor is arranged on the material receiving hopper, the gear is meshed with the annular gear, and the gear is fixedly connected with an output shaft of the third rotating motor.
Further, the sensor assembly comprises a proximity sensor arranged on the material bearing assembly and a plurality of sensing blocks in sensing fit with the proximity sensor, and the proximity sensor is electrically connected with the controller.
The beneficial effects are that: according to the powder spreading mechanism of the 3D printer with the fan-shaped structure, the controller simultaneously controls the first rotating motor, the second rotating motor and the third rotating motor to rotate, so that the spiral feeding rod and the limiting roller rotate to uniformly spread powder when spreading powder while driving the hopper to rotate, after the powder spreading of the lifting platform is completed, the controller controls the first driving component and the second driving component to drive the laser head to burn the metal powder on the lifting platform, after the burning is completed, the controller controls the second rotating motor to rotate to drive the lifting platform to descend for a certain distance, then the controller controls the powder spreading mechanism to reversely rotate to spread the powder again on the lifting platform, then the first driving mechanism is controlled to drive the laser head to burn the metal powder again, the steps are repeated, the powder spreading shape is the fan-shaped structure, the shell is of the fan-shaped structure, the use amount of the metal powder when printing objects each time can be reduced, and the production cost is reduced.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic diagram of a second perspective structure of the present invention;
FIG. 3 is a schematic perspective view of the lift assembly, housing and first drive mechanism of the present invention;
FIG. 4 is a schematic diagram of a three-dimensional structure of the lifting platform and the powder spreading mechanism of the present invention;
FIG. 5 is a schematic diagram showing a three-dimensional structure of the lifting platform and the powder spreading mechanism;
FIG. 6 is a schematic perspective view of the powder spreading mechanism of the present invention;
FIG. 7 is an enlarged view at A of FIG. 6;
FIG. 8 is a schematic perspective view of a material bearing assembly according to the present invention;
FIG. 9 is a schematic perspective view of a restraint assembly of the present invention;
FIG. 10 is a schematic perspective view of a confining roller in accordance with the present invention;
FIG. 11 is a schematic perspective view of a first driving mechanism according to the present invention;
FIG. 12 is a schematic perspective view of a laser burning mechanism according to the present invention;
reference numerals illustrate: the laser burning device 2, the laser burning mechanism 2a, the sliding table 2a1, the laser head 2a2, the stepping motor 2a3, the rectangular frame 2a4, the first driving mechanism 2b, the first driving component 2b1, the second driving component 2b2, the first driving motor 2b3, the sliding block 2b4, the first sliding rod 2b5, the second driving motor 2b6, the second sliding rod 2b7, the lifting platform 3, the lifting component 3a, the second lifting motor 3a1, the vertical rod 3a2, the powder spreading mechanism 4, the powder falling mechanism 4a, the second driving mechanism 4b, the material bearing component 4c, the material bearing hopper 4c1, the spiral feeding rod 4c2, the first rotating motor 4c3, the limiting component 4d, the limiting roller 4d1, the second rotating motor 4d2, the quantitative groove 4d3, the meshing component 4f, the third rotating motor 4f1, the gear 4f2, the proximity sensor 5 and the sensing block 5a.
Detailed Description
Specific embodiments of the invention are described in further detail below with reference to the drawings and examples of the specification:
referring to the 3D printer of fan-shaped structure shown in fig. 1-12, including the horizontal cross-section for fan-shaped casing 1, set up at the laser firing device 2 at casing 1 top, set up elevating platform 3, shop powder mechanism 4 and controlling means in casing 1, laser firing device 2 is including laser firing mechanism 2a and be used for driving the first actuating mechanism 2b of laser firing mechanism 2a translation, shop powder mechanism 4 sets up directly over elevating platform 3, elevating platform 3 level sets up and is fan-shaped structure, shop powder mechanism 4 is including falling powder mechanism 4a and be used for driving falling powder mechanism 4a rotatory second actuating mechanism 4b, elevating platform 3's bottom is provided with the elevating assembly 3a that is used for driving elevating platform 3 to go up and down, controlling means including the controller and with controller electric connection's sensor assembly, the controller simultaneously controls second actuating mechanism 4b and carries out the time after the laser firing mechanism 3 spreads the powder completely, and the controller controls first actuating mechanism 2b and carries out the controller to drive 2a2 to the metal powder on elevating platform 3 to go up and down the elevating platform 3a control the elevating assembly and then carries out the step 2 and repeat the step of controlling the elevating platform 2 to fall powder firing mechanism 3a and then to carry out the step 2 and repeat the elevating platform 2.
The laser burning mechanism 2a comprises a sliding table 2a1, a laser head 2a2 and a fine adjustment assembly, wherein the sliding table 2a1 and the laser head 2a2 are in transmission fit with the first driving mechanism 2b, the fine adjustment assembly comprises a rectangular frame 2a4 and a stepping motor 2a3 arranged in the rectangular frame 2a4, a plurality of guide cylinders distributed in a matrix are arranged at the top of the rectangular frame 2a4, the laser head 2a2 is arranged at the bottom of the rectangular frame 2a4, an output shaft of the stepping motor 2a3 is vertically upwards and fixedly connected with a first screw rod, a thread cylinder in threaded fit with the first screw rod and a plurality of guide rods in one-to-one correspondence with all the guide cylinders are arranged at the bottom of the sliding table 2a1, and the fine adjustment assembly can adjust the initial distance between the laser head 2a relative to the lifting platform 3 so as to ensure the burning effect.
The first driving mechanism 2b comprises a first driving component 2b1 used for driving the sliding table 2a1 to travel back and forth along one straight edge direction of the lifting platform 3 and a first driving component 2b1 used for driving the sliding table 2a1 to travel back and forth along the other straight edge direction of the lifting platform 3, the first driving component 2b1 is in sliding fit with the second driving component 2b2, the first driving component 2b1 can drive the second driving component 2b2 to travel along the driving direction of the first driving component 2b1, and the driving direction of the first driving component 2b1 is perpendicular to the driving direction of the second driving component 2b2, so that the laser head 2a2 can be guaranteed to be translated to any position of the lifting platform 3.
The first driving assembly 2b1 comprises two first driving motors 2b3, two sliding blocks 2b4 and two first sliding rods 2b5 which are arranged at intervals along the driving direction of the second driving assembly 2b2, all the sliding blocks 2b4 are in one-to-one sliding fit with all the first sliding rods 2b5, each first driving motor 2b3 is in transmission fit with one sliding block 2b4 through a second screw rod, the first driving motor 2b3 is electrically connected with the controller, the controller is used for driving the first driving motor 2b3 to rotate, and the sliding blocks 2b4 are driven to slide on the first sliding rods 2b5, so that the second driving assembly 2b2 moves on the first sliding rods 2b 5.
The second driving assembly 2b2 comprises a second driving motor 2b6, a third screw rod and two second sliding rods 2b7, two ends of each second sliding rod 2b7 are respectively and fixedly connected with the two sliding blocks 2b4, two ends of each third screw rod are respectively and rotatably matched with the two sliding blocks 2b4, an output shaft of the second driving motor 2b6 is fixedly connected with the third screw rod, the top of the sliding table 2a1 is simultaneously and slidably matched with the two second sliding rods 2b7 and is in transmission fit with the third screw rod, the second driving motor 2b6 is electrically connected with the controller, the controller controls the second driving motor 2b6 to rotate, and the sliding table 2a1 is driven to travel back and forth in the axis direction of the second sliding rods 2b 7.
The lifting assembly 3a comprises a second lifting motor 3a1 and a plurality of vertical rods 3a2, the second lifting motor 3a1 is arranged at the bottom of the shell 1, an output shaft of the second lifting motor 3a1 vertically upwards penetrates through the bottom of the shell 1 and extends to the position right below the lifting platform 3, a fourth screw rod is fixedly connected with an output shaft of the lifting motor, a connecting cylinder in threaded fit with the fourth screw rod is arranged at the bottom of the lifting platform 3, the top ends of all the vertical rods 3a2 are fixedly connected with the bottom of the lifting platform 3, all the vertical rods 3a2 are in sliding fit with the bottom of the shell 1, the controller controls the second lifting motor 3a1 to rotate, and vertical displacement is realized between the fourth screw rod and the connecting cylinder, so that lifting of the lifting platform 3 is realized.
The powder falling mechanism 4a comprises a material bearing component 4c for bearing materials and a limiting component 4d for limiting the blanking amount, the second driving mechanism 4b comprises an arc-shaped annular gear and a meshing component 4f meshed with the annular gear, and the material bearing component 4c and the limiting component 4d are matched with the annular gear through the meshing component 4f to rotate so as to spread powder on the lifting platform 3.
The sensor assembly comprises a proximity sensor 5 and a plurality of sensing blocks 5a, wherein the proximity sensor 5 is arranged on the material bearing assembly 4c, the sensing blocks 5a are in sensing fit with the proximity sensor 5, the proximity sensor 5 is electrically connected with the controller, when the proximity sensor 5 detects the sensing blocks 5a, an electric signal is transmitted to the controller, and the controller controls the meshing assembly 4f to stop rotating.
The material bearing assembly 4c comprises a material bearing hopper 4c1 and a feeding assembly, the material bearing hopper 4c1 is horizontally arranged and is in a strip shape, the area of the longitudinal section of the material bearing hopper 4c1 along the center line of the material bearing hopper 4c1 from the center of the lifting platform to the arc edge direction of the lifting platform is gradually increased, and the material bearing hopper 4c1 is ensured to evenly spread powder on the lifting platform 3.
The feeding assembly comprises a spiral feeding rod 4c2 horizontally arranged in a hopper 4c1 and a first rotary motor 4c3 fixedly arranged on the hopper 4c1, the axis of the spiral feeding rod 4c2 coincides with the central line of the hopper 4c1, one end of the spiral feeding rod 4c2 is fixedly connected with an output shaft of the first rotary motor 4c3, a feeding hole is formed in the hopper 4c1, and metal powder is conveyed to any position of the hopper 4c1 by the spiral feeding rod 4c 2.
The limiting assembly 4d comprises a limiting roller 4d1 arranged in the hopper 4c1 and a second rotating motor 4d2 used for driving the limiting roller 4d1 to rotate, the limiting roller 4d1 is a long-strip-shaped cone, the small end of the limiting roller 4d1 is parallel to the center line of the spiral feeding rod 4c2, the limiting roller 4d1 is arranged right below the spiral feeding rod 4c2, the output end of the second rotating motor 4d2 is fixedly connected with the small end of the limiting roller 4d1, the axis of the second rotating motor 4d2 coincides with the axis of the limiting roller 4d1, and each time the first rotating motor 4c3 rotates for a certain angle, a certain amount of metal powder falls down from the hopper 4c 1.
The conical surface of the limiting roller 4d1 is provided with a plurality of quantitative grooves 4d3, all the quantitative grooves 4d3 are distributed along the equal angular difference of the axis of the limiting roller 4d1, the quantitative grooves 4d3 are long-strip-shaped semicircular grooves, the small head ends of the quantitative grooves 4d3 are in a circle center pointing to the lifting platform, and metal powder in the quantitative grooves 4d3 can ensure that each time the quantitative grooves slide through a certain angle, so that the area of the hopper 4c1 passing through the lifting platform 3 can obtain the metal powder with equal density.
The inner gear ring is fixedly arranged on the shell 1, the inner gear ring is horizontally arranged, the circle center of the inner gear ring is arranged right above the lifting platform 3, the big end of the material receiving hopper 4c1 is provided with a rotating wheel which is in sliding fit with the bottom of the inner gear ring, the meshing component 4f is meshed with the inner gear ring, and one end of the material receiving hopper 4c1 far away from the inner gear ring is rotationally connected with the inner side of the shell 1.
The meshing assembly 4f comprises a gear 4f2 and a third rotating motor 4f1 which are arranged on the hopper 4c1, the third rotating motor 4f1 is arranged on the hopper 4c1, the gear 4f2 is meshed with the inner gear ring, the gear 4f2 is fixedly connected with an output shaft of the third rotating motor 4f1, the third rotating motor 4f1 rotates to drive the gear 4f2 to be meshed with the inner gear ring, and the hopper 4c1 is driven to rotate to spread powder on the lifting platform 3.
Working principle: the controller simultaneously controls the first rotating motor 4c3, the second rotating motor 4d2 and the third rotating motor 4f1 to rotate, so that the spiral feeding rod 4c2 and the limiting roller 4d1 rotate to uniformly spread powder when spreading the powder, the first driving component 2b1 and the second driving component 2b2 are controlled by the controller to drive the laser head 2a2 to burn the metal powder on the lifting platform 3 after the lifting platform 3 is completely spread with the powder, the controller controls the second rotating motor 4d2 to rotate to drive the lifting platform 3 to descend for a certain distance after the burning is completed, then the controller controls the powder spreading mechanism 4 to reversely rotate to spread the powder again on the lifting platform 3, and then controls the first driving mechanism 2b to drive the laser head 2a2 to burn the metal powder again, and the steps are repeated.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present invention are still within the scope of the technical solutions of the present invention.

Claims (4)

1. Powder mechanism is spread to 3D printer of fan-shaped structure sets up directly over lift platform (3), its characterized in that: the lifting platform (3) is horizontally arranged and is of a fan-shaped structure, the powder spreading mechanism comprises a powder falling mechanism (4 a), a second driving mechanism (4 b) for driving the powder falling mechanism (4 a) to rotate and a control device, the control device comprises a controller and a sensor assembly electrically connected with the controller, the powder falling mechanism (4 a) comprises a material bearing assembly (4 c) for bearing materials and a limiting assembly (4 d) for limiting the blanking amount, the second driving mechanism (4 b) comprises an arc-shaped annular gear and a meshing assembly (4 f) meshed with the annular gear, the limiting assembly (4 d) is arranged in the material bearing assembly (4 c), and the meshing assembly (4 f) is fixedly arranged on the material bearing assembly (4 c), and the meshing assembly (4 f), the material bearing assembly (4 c) and the limiting assembly (4 d) are electrically connected with the controller;
the material bearing assembly (4 c) comprises a material bearing hopper (4 c 1) and a feeding assembly, the material bearing hopper (4 c 1) is horizontally arranged and is in a strip shape, and the area of the longitudinal section of the material bearing hopper (4 c 1) along the center line of the material bearing hopper from the circle center of the lifting table to the arc edge direction of the lifting table is gradually increased;
the feeding assembly comprises a spiral feeding rod (4 c 2) horizontally arranged in the hopper (4 c 1) and a first rotary motor (4 c 3) fixedly arranged on the hopper (4 c 1), the axis of the spiral feeding rod (4 c 2) coincides with the central line of the hopper (4 c 1), and one end of the spiral feeding rod (4 c 2) is fixedly connected with the output shaft of the first rotary motor (4 c 3);
the limiting assembly (4 d) comprises a limiting roller (4 d 1) arranged in the hopper (4 c 1) and a second rotating motor (4 d 2) used for driving the limiting roller (4 d 1) to rotate, the limiting roller (4 d 1) is a long-strip-shaped cone, the small end of the limiting roller (4 d 1) is parallel to the center line of the spiral feeding rod (4 c 2) and the axis of the limiting roller (4 d 1) is parallel to the center line of the spiral feeding rod (4 c 2), the limiting roller (4 d 1) is arranged right below the spiral feeding rod (4 c 2), the output end of the second rotating motor (4 d 2) is fixedly connected with the small end of the limiting roller (4 d 1), and the axis of the second rotating motor (4 d 2) is coincident with the axis of the limiting roller (4 d 1);
the conical surface of the limiting roller (4 d 1) is provided with a plurality of quantitative grooves (4 d 3), all the quantitative grooves (4 d 3) are distributed along the equal angular difference of the axis of the limiting roller (4 d 1), the quantitative grooves (4 d 3) are long-strip-shaped and semi-conical grooves, and the small head ends of the quantitative grooves (4 d 3) are in circle centers pointing to the lifting platform.
2. The powder spreading mechanism of a fan-structured 3D printer according to claim 1, wherein: the inner gear ring is fixedly arranged on the shell (1), the inner gear ring is horizontally arranged, the circle center of the inner gear ring is arranged right above the lifting platform (3), and a rotating wheel in sliding fit with the bottom of the inner gear ring is arranged at the large end of the bearing hopper (4 c 1).
3. The powder spreading mechanism of a fan-structured 3D printer according to claim 2, wherein: the meshing assembly (4 f) comprises a gear (4 f 2) and a third rotating motor (4 f 1), wherein the gear (4 f 2) and the third rotating motor (4 f 1) are arranged on the hopper (4 c 1), the gear (4 f 2) is meshed with the annular gear, and the gear (4 f 2) is fixedly connected with an output shaft of the third rotating motor (4 f 1).
4. A fan structured 3D printer powder spreading mechanism according to claim 3, wherein: the sensor assembly comprises a proximity sensor (5) arranged on the material bearing assembly (4 c) and a plurality of sensing blocks (5 a) in sensing fit with the proximity sensor (5), and the proximity sensor (5) is electrically connected with the controller.
CN201810339677.6A 2018-04-16 2018-04-16 Powder paving mechanism of 3D printer with fan-shaped structure Active CN108262477B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810339677.6A CN108262477B (en) 2018-04-16 2018-04-16 Powder paving mechanism of 3D printer with fan-shaped structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810339677.6A CN108262477B (en) 2018-04-16 2018-04-16 Powder paving mechanism of 3D printer with fan-shaped structure

Publications (2)

Publication Number Publication Date
CN108262477A CN108262477A (en) 2018-07-10
CN108262477B true CN108262477B (en) 2023-10-03

Family

ID=62777799

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810339677.6A Active CN108262477B (en) 2018-04-16 2018-04-16 Powder paving mechanism of 3D printer with fan-shaped structure

Country Status (1)

Country Link
CN (1) CN108262477B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111070683B (en) * 2018-12-20 2021-05-07 上海微电子装备（集团）股份有限公司 3D printing powder laying system, 3D printing device and 3D printing powder laying method

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2984191A1 (en) * 2011-12-20 2013-06-21 Michelin Soc Tech MACHINE AND PROCESS FOR ADDITIVE MANUFACTURE OF POWDER
CN204892952U (en) * 2015-05-22 2015-12-23 上海悦瑞电子科技有限公司 3D prints make -up machine
WO2016009426A1 (en) * 2014-07-13 2016-01-21 Stratasys Ltd. Method and system for rotational 3d printing
CN106735213A (en) * 2016-12-22 2017-05-31 华中科技大学 A kind of power spreading device for being applied to laser gain material manufacture
CN106863786A (en) * 2017-03-22 2017-06-20 安徽恒利增材制造科技有限公司 A kind of 3D printing rapidform machine has the material cylinder of quantitative blanking function
CN107433714A (en) * 2016-05-25 2017-12-05 罗天珍 The micro- comb powdering method of the special fusion of powder 3D printing and power spreading device
WO2018000738A1 (en) * 2016-06-28 2018-01-04 华南理工大学 Internally disposed automatic coating device and method based on 3d printing of precious metal
DE102016211799A1 (en) * 2016-06-30 2018-01-04 Robert Bosch Gmbh Device for the generative production of workpieces
CN107695354A (en) * 2017-11-13 2018-02-16 黎硕三维科技发展（上海）有限公司 A kind of powder supplying mechanism of laser sintered equipment
CN208276176U (en) * 2018-04-16 2018-12-25 安徽机电职业技术学院 A kind of powder supply mechanism of the 3D printer of sector structure

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170067344A1 (en) * 2015-09-03 2017-03-09 General Electric Company Rotating component, method of forming a rotating component and apparatus for forming a rotating component

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2984191A1 (en) * 2011-12-20 2013-06-21 Michelin Soc Tech MACHINE AND PROCESS FOR ADDITIVE MANUFACTURE OF POWDER
WO2016009426A1 (en) * 2014-07-13 2016-01-21 Stratasys Ltd. Method and system for rotational 3d printing
CN204892952U (en) * 2015-05-22 2015-12-23 上海悦瑞电子科技有限公司 3D prints make -up machine
CN107433714A (en) * 2016-05-25 2017-12-05 罗天珍 The micro- comb powdering method of the special fusion of powder 3D printing and power spreading device
WO2018000738A1 (en) * 2016-06-28 2018-01-04 华南理工大学 Internally disposed automatic coating device and method based on 3d printing of precious metal
DE102016211799A1 (en) * 2016-06-30 2018-01-04 Robert Bosch Gmbh Device for the generative production of workpieces
CN106735213A (en) * 2016-12-22 2017-05-31 华中科技大学 A kind of power spreading device for being applied to laser gain material manufacture
CN106863786A (en) * 2017-03-22 2017-06-20 安徽恒利增材制造科技有限公司 A kind of 3D printing rapidform machine has the material cylinder of quantitative blanking function
CN107695354A (en) * 2017-11-13 2018-02-16 黎硕三维科技发展（上海）有限公司 A kind of powder supplying mechanism of laser sintered equipment
CN208276176U (en) * 2018-04-16 2018-12-25 安徽机电职业技术学院 A kind of powder supply mechanism of the 3D printer of sector structure

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
段贤勇.基于MoldFlow/MPI的大型塑料托盘注射成型分析.模具制造.2012,(第05期),第14-17页. *

Also Published As

Publication number Publication date
CN108262477A (en) 2018-07-10

Similar Documents

Publication Publication Date Title
CN203580138U (en) Desktop three-dimensional (3D) printer
CN108262477B (en) Powder paving mechanism of 3D printer with fan-shaped structure
CN106827538B (en) A kind of 3D printer that accuracy is high
CN208408545U (en) A kind of powder supply mechanism of metal 3D printer
CN105108152A (en) Three-dimensional printer, three-dimensional printing method and preparation method for metal slurry
CN109291432A (en) A kind of measurement method for increasing material manufacturing powder bed powder layer thickness
CN104760280A (en) Flying 3D printing robot
CN108262476B (en) 3D printer of fan-shaped structure
KR20170089625A (en) Powder layer forming apparatus for sls 3d printer
CN208276176U (en) A kind of powder supply mechanism of the 3D printer of sector structure
CN204035644U (en) Novel spiral milling device
CN106393680B (en) 3D printer
CN111015893B (en) 3D clay printer
CN208084976U (en) A kind of 3D printer of sector structure
CN110718490B (en) Chip burning machine capable of automatically feeding and discharging
CN204658980U (en) Table top type many material powders three-dimensional printer
CN204917169U (en) Carry material device
CN208148520U (en) A kind of 3D printing shaped platform lifting structure
JP6201789B2 (en) Cutting machine
CN203709141U (en) Automatic forming machine for cake
CN220885787U (en) Discharging screw mechanism of feeding machine
CN112810152A (en) 3D printing device using plasma generator
CN210664594U (en) High-precision filling forming micrometer
CN217844686U (en) Rotary kiln heating device with ceramic inner container
CN203622965U (en) Portable 3D (three-dimensional) printer

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant