CN110039052B - Can dismantle 3D of baffle prints and leads powder device - Google Patents

Can dismantle 3D of baffle prints and leads powder device Download PDF

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Publication number
CN110039052B
CN110039052B CN201910362155.2A CN201910362155A CN110039052B CN 110039052 B CN110039052 B CN 110039052B CN 201910362155 A CN201910362155 A CN 201910362155A CN 110039052 B CN110039052 B CN 110039052B
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powder
module
baffle
baffle plate
rotary
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CN110039052A (en
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赵庆洋
范有
吴俊�
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Hangzhou Himalaya Information Technology Co ltd
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Hangzhou Himalaya Information Technology Co ltd
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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
    • 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
    • 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
    • B22F12/57—Metering means
    • 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
    • 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)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Apparatus For Making Beverages (AREA)

Abstract

The invention discloses a 3D printing powder guide device with a detachable baffle. The driving module is coaxially connected with the rotary powder guiding module, the rotary powder guiding module is of a stepped cylinder structure, the upper surface of the rotary powder guiding module is provided with a square powder conveying hole, the lower surface of the rotary powder guiding module is provided with a powder guiding opening, a cavity is formed in the rotary powder guiding module, a partition plate is horizontally arranged in the rotary powder guiding module, and the square powder conveying hole is communicated with the powder guiding opening through a blade through groove in the partition plate; the annular outer ring is coaxially sleeved on the periphery of the stepped cylinder structure, a circumferential flange is arranged at the upper end of the annular outer ring, a sliding groove is formed in the stepped surface of the stepped cylinder, a sliding rail is arranged at the position, corresponding to the sliding groove, of the circumferential flange, and the sliding rail and the sliding groove form a rolling pair through balls; the lower end of the annular outer ring is circumferentially provided with baffles, and each baffle is provided with a plate surface capable of correspondingly sealing one powder guide opening; the outer peripheral surface of the rotary powder guiding module is provided with a spring positioning pin and a controller, and the controller is connected with the spring positioning pin and controls the spring positioning pin to extend out of or into the positioning hole. The powder guiding device can adjust the powder guiding amount and has high powder guiding speed.

Description

Can dismantle 3D of baffle prints and leads powder device
Technical Field
The invention relates to the technical field of 3D printing rapid forming, in particular to a 3D printing powder guide device with a detachable baffle.
Background
With the rapid development of 3D printing technology, metal 3D printing technology has also received extensive attention. Taking selective laser melting as an example, the selective laser melting device is composed of a control system, a laser scanning system, a powder guide mechanism, a forming platform and the like. A new and faster metal 3D printing technology, diode-based additive manufacturing (DiAM) technology, was developed in 2017 by the lawrens-liformer national laboratory, which is based on the Optical Addressing Light Valve (OALV) technology and can realize one-time printing of the entire layer of metal powder.
At present, the powder guide mode of the 3D printing device is mainly reciprocating translation, the uniformity is difficult to ensure, and the powder waste is serious. Especially for present neotype face shaping metal 3D printing technique, efficiency is also relatively lower.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides a 3D printing powder guide device with a detachable baffle.
The technical scheme of the invention is as follows:
the invention comprises a rotary powder guiding module, a detachable baffle plate module and a driving module, wherein the driving module comprises a motor and a driving shaft which are coaxially connected, a rotating shaft is fixedly arranged at the center of the rotary powder guiding module and is coaxially connected with the driving shaft, the rotary powder guiding module mainly comprises a small cylinder and a large cylinder which are coaxially and fixedly connected and forms a stepped cylindrical structure with a small upper part and a large lower part, a cavity is formed inside the stepped cylindrical structure, a horizontally arranged baffle plate is fixedly arranged in the cavity, the cavity is divided into an upper cavity chamber and a lower cavity chamber which are not communicated by the baffle plate, a plurality of square powder conveying holes which penetrate through the upper cavity chamber are uniformly formed in the upper surface of the stepped cylindrical structure along the circumferential direction, a plurality of powder guiding openings are formed in the lower surface of the stepped cylindrical structure along the circumferential direction, each powder guiding opening is formed in the radial direction and penetrates through the lower cavity chamber, and a plurality, the square powder conveying hole is communicated with the powder guide port through the blade through groove.
The outer edge of the large cylinder protrudes out of the small cylinder, the upper surface of the outer edge of the large cylinder is used as a mounting surface for mounting the detachable baffle plate module, the detachable baffle plate module is coaxially mounted with the rotary powder guiding module, the detachable baffle plate module comprises an annular outer ring and a baffle plate, the upper end of the annular outer ring is provided with a circumferential flange extending inwards along the radial direction, the annular outer ring is coaxially sleeved on the periphery of the large cylinder, so that the circumferential flange is in contact connection with the mounting surface of the large cylinder, the mounting surface of the large cylinder is provided with a sliding groove along the complete circumferential direction, the circumferential flange is provided with a sliding rail matched with the sliding groove at the position corresponding to the sliding groove, and the sliding rail forms a; the lower extreme of annular outer lane is followed circumference interval in proper order and is had the fixed orifices that is used for installing the baffle, and a plurality of baffles are installed in the fixed orifices that corresponds through respective fixed axle, and the quantity of baffle equals with the quantity of leading the powder mouth, and every baffle is installed along the radial direction of annular outer lane and is just made the upper surface of baffle and big cylinder's lower surface contact be connected, and every baffle all has the face that can correspond and seal a powder mouth size of leading.
The rotary powder guiding module is provided with a groove on the outer peripheral surface contacting with the detachable baffle plate module, a spring positioning pin and a controller are arranged in the groove, a positioning hole for installing the spring positioning pin is formed in the groove, the spring positioning pin is radially installed in the positioning hole, and the controller is connected with the spring positioning pin and controls the spring positioning pin to extend out of or into the positioning hole.
The annular outer ring of the detachable baffle plate module rotates relative to the powder guide module under the action of the rolling pair, so that each baffle plate correspondingly seals one powder guide opening; the controller controls the spring positioning pin to extend out of the positioning hole, so that the other end face of the spring positioning pin tightly abuts against the detachable baffle plate module, and the detachable baffle plate module and the rotary powder guide module synchronously move under the action of the spring positioning pin; the controller controls the spring positioning pin to stretch into the positioning hole, the detachable baffle plate module is separated from the rotary powder guiding module, the motor drives the driving shaft to rotate so as to drive the rotary powder guiding module to rotate, and the baffle plate of the detachable baffle plate module is kept still so as to enable the powder guiding opening to move from a closed state to an open state.
Preferably, the plurality of blade through grooves are uniformly distributed on the partition plate in a spiral shape, and the width of each blade through groove increases gradually along the radial direction.
Preferably, each powder guide opening is triangular, one corner of each powder guide opening points to the circle center of the lower surface of the rotary powder guide module, and the plurality of powder guide openings are arranged along the circumference in an array mode.
Preferably, the radial one end of baffle and fixed axle fixed connection, the radial other end of baffle all points to the center of annular outer lane.
Preferably, the groove is formed in the outer peripheral surface of the small cylinder in contact with the circumferential flange, and the positioning hole is formed in the radial direction of the small cylinder.
The invention is provided with a baffle plate which is detachable relative to the annular outer ring, the detachable baffle plate module is coaxially installed with the rotary powder guiding module through the matching of a chute, a sliding rail and a ball, the detachable baffle plate module is controlled by a spring positioning pin to synchronously rotate with the rotary powder guiding module or be separated from the rotary powder guiding module to keep still, and the driving module drives the rotary powder guiding module to rotate through a motor, so that the baffle plate opens or closes a powder guiding opening. And the rotating angle of the rotary powder guiding module is adjusted, so that the opening and closing size of the baffle can be controlled, and the powder guiding amount is controlled.
The invention has the following beneficial effects:
adopt the form of single rotation with the locating pin to lead the powder, can lead the size regulation of powder mouth through control and lead the powder volume to avoid the waste of powder, adopt six to lead the powder mouth simultaneously, only need rotatory sixty degrees can accomplish and lead the powder, lead powder fast.
Drawings
FIG. 1 is a cross-sectional view of a three-dimensional structure of the device of the present invention.
FIG. 2 is a schematic bottom view of the device of the present invention.
Fig. 3 is a perspective view of the annular outer ring.
Fig. 4 is a schematic structural view of the baffle.
Fig. 5 is a schematic perspective view of a rotary powder guiding module.
Fig. 6 is a partial schematic view of a controller and spring loaded detent pin of the rotary powder guide module.
Fig. 7 is a schematic bottom structure diagram of the rotary powder guide module.
Fig. 8 is a cross-sectional view of a rotary powder guiding module.
Fig. 9 is a schematic view of a blade through groove formed in a partition plate of the rotary powder guide module.
In the figure: 1. the powder module is led in the rotation 2, 3, drive module, 1.1 ball, 1.2 annular outer lane, 1.3 slide rails, 1.4 fixed orifices, 1.6 baffle, 1.7 fixed axle, 2.1 spouts, 2.2 blade logical grooves, 2.3 square defeated powder holes, 2.4 axis of rotation, 2.5 spring locating pin, 2.6 controller, 2.7 lead the powder mouth, 3.1 motor, 3.2 drive shafts.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
As shown in fig. 1, the driving module 3 includes a motor 3.1 and a driving shaft 3.2 which are coaxially connected, a rotating shaft 2.4 is fixedly arranged at the center of the rotary powder guiding module 2, the rotating shaft 2.4 is coaxially connected with the driving shaft 3.2, the lower end of the driving shaft 3.2 is coaxially mounted and connected with the rotating shaft 2.4, and the upper end is coaxially connected with the motor 3.1; the motor 3.1 controls the rotation of the rotary powder guiding module 2.
As shown in fig. 5 and 8, the rotary powder guiding module 2 mainly comprises a small cylinder and a large cylinder which are coaxially and fixedly connected, so as to form a stepped cylinder structure with a small top and a large bottom, a cavity is formed inside the stepped cylinder structure, a horizontally arranged partition plate is fixedly arranged in the cavity, the cavity is divided into an upper cavity and a lower cavity which are not communicated by the partition plate, six square powder conveying holes 2.3 penetrating through the upper cavity are uniformly formed in the upper surface of the stepped cylinder structure along the circumferential direction, six powder guiding holes 2.7 are formed in the lower surface of the stepped cylinder structure along the circumferential direction, each powder guiding hole 2.7 is formed in the radial direction and penetrates through the lower cavity, six blade through grooves 2.2 are formed in the partition plate along the circumferential direction, and the square powder conveying holes 2.3 are communicated with the powder guiding holes 2.7 through the blade through grooves 2.2.
In a specific implementation, as shown in fig. 9, a plurality of blade through grooves 2.2 are uniformly distributed on the partition plate in a spiral shape, and each blade through groove 2.2 has a shape similar to that of a blade of the centrifugal pump, and the width increases gradually from the radial direction to the outside. Can also set up two-layer baffle in the cavity of ladder cylinder structure, two-layer baffle parallel arrangement each other, two-layer baffle all opened the blade and led to groove 2.2, and the blade of two-layer baffle leads to crisscross setting of groove 2.2, and position and angle are incompletely corresponding.
As shown in fig. 1 and 5, the outer edge of the large cylinder protrudes from the small cylinder, the upper surface of the outer edge of the large cylinder is used as a mounting surface for mounting the detachable baffle module 1, and the detachable baffle module 1 and the rotary powder guide module 2 are coaxially mounted.
As shown in fig. 2, 3 and 4, an upper end of an annular outer ring 1.2 of the detachable baffle module 1 is provided with a circumferential flange extending inwards along a radial direction, the annular outer ring 1.2 is coaxially sleeved on the periphery of the large cylinder, so that the circumferential flange is in contact connection with a mounting surface of the large cylinder, the mounting surface of the large cylinder is provided with a sliding groove 2.1 along the complete circumferential direction, the circumferential flange is provided with a sliding rail 1.3 matched with the sliding groove 2.1 at a position corresponding to the sliding groove 2.1, and the sliding rail 1.3 and the sliding groove 2.1 form a rolling pair through a ball 1.1; the lower end of the annular outer ring 1.2 is provided with fixing holes 1.4 for installing the baffle plates 1.6 at intervals in sequence along the circumferential direction, and the outer circumferential surface of the annular outer ring 1.2 is provided with a powder scraping plate with a semicircular size. A plurality of baffles 1.6 are installed in corresponding fixed holes 1.4 through respective fixed shafts 1.7, the number of the baffles 1.6 is equal to the number of the powder guide openings 2.7, each baffle 1.6 is installed along the radial direction of the annular outer ring 1.2, the upper surface of each baffle 1.6 is in contact connection with the lower surface of the large cylinder, and each baffle 1.6 is provided with a plate surface capable of correspondingly closing the size of one powder guide opening 2.7.
In specific implementation, one radial end of the baffle plate 1.6 is fixedly connected with the fixed shaft 1.7, and the other radial end of the baffle plate 1.6 points to the center of the annular outer ring 1.2.
As shown in fig. 6, the rotary powder guiding module 2 is provided with a groove on the outer peripheral surface contacting with the detachable baffle module 1, a spring positioning pin 2.5 and a controller 2.6 are arranged in the groove, a positioning hole for installing the spring positioning pin 2.5 is arranged in the groove, the spring positioning pin 2.5 is radially installed in the positioning hole, and the controller 2.6 is connected with the spring positioning pin 2.5 and controls the spring positioning pin 2.5 to extend out of or into the positioning hole. The groove is formed in the outer peripheral surface of the small cylinder which is in contact with the circumferential flange, and the positioning hole is formed in the radial direction of the small cylinder. In a specific implementation, three spring positioning pins 2.5 are arranged along the circumferential direction.
As shown in fig. 7, each powder guide port 2.7 is triangular, one corner of each powder guide port 2.7 points to the center of the lower surface of the rotary powder guide module 2, and the plurality of powder guide ports 2.7 are arranged in a circumferential array.
The specific powder guiding process of the invention is as follows:
before powder guiding, the annular outer ring 1.2 of the detachable baffle plate module 1 rotates relative to the powder guiding module 2 under the action of a rolling pair, each baffle plate 1.6 correspondingly seals one powder guiding opening 2.7, and six baffle plates 1.6 respectively face six powder guiding openings 2.7 of the rotary powder guiding module 2. The controller 2.6 controls the spring positioning pin 2.5 to extend out of the positioning hole, so that the other end face of the spring positioning pin 2.5 tightly abuts against the detachable baffle plate module 1, the detachable baffle plate module 1 and the rotary powder guide module 2 synchronously move under the action of the spring positioning pin 2.5, and the spring positioning pin 2.5 is in a tight-pushing state, so that the device disclosed by the invention is moved above the 3D printing table.
When powder begins to be guided, the controller 2.6 controls the spring positioning pin 2.5 to stretch into the positioning hole, the detachable baffle plate module 1 is separated from the rotary powder guiding module 2, the spring positioning pin 2.5 contracts, the motor 3.1 of the driving module 3 drives the driving shaft 3.2 to drive the rotary powder guiding module 2 to rotate in a small amplitude, the detachable baffle plate module 1 at the moment keeps still, the powder guiding port 2.7 rotates to the powder guiding channel with a certain size from a closed state, the size of the powder guiding channel is controlled by controlling the size of the rotating angle, the spring positioning pin 2.5 is controlled by the controller 2.4 to be ejected after the size is determined, and therefore the rotary powder guiding module 2 and the detachable baffle plate module 1 synchronously rotate.
The powder that 3D printed is input from square defeated powder hole 2.3 and is passed through blade logical groove 2.2 and carry out primary homogenization treatment to the powder, the powder mouth 2.7 is led to the rethread carries out the secondary and evenly leads the powder, rotatory one sixth of week back, obtain the thick powder of ration layer, rotatory powder module 2 stall of leading, spring locating pin 2.5 shrink, rotatory powder module 2 of leading begins the certain angle of reverse rotation, until baffle 1.6 just to leading powder mouth 2.7, accomplish leading of one deck from this, wait to carry out leading of second floor after one deck is printed and is accomplished. And repeating the process until the 3D printing task is completed.

Claims (5)

1. The utility model provides a can dismantle 3D of baffle prints and leads powder device which characterized in that: the powder guide device comprises a rotary powder guide module (2), a detachable baffle module (1) and a drive module (3), wherein the drive module (3) comprises a motor (3.1) and a drive shaft (3.2) which are coaxially connected, a rotating shaft (2.4) is fixedly arranged at the center of the rotary powder guide module (2), the rotating shaft (2.4) is coaxially connected with the drive shaft (3.2), the rotary powder guide module (2) mainly comprises a small cylinder and a large cylinder which are coaxially and fixedly connected, a stepped cylinder structure with a small upper part and a large lower part is formed, a cavity is formed inside the stepped cylinder structure, a horizontally arranged partition plate is fixedly arranged in the cavity, the cavity is divided into an upper cavity and a lower cavity which are not communicated by the partition plate, a plurality of square powder conveying holes (2.3) penetrating through the upper cavity are uniformly formed in the upper surface of the stepped cylinder structure along the circumferential direction, a plurality of powder guide openings (2.7) are formed in the lower surface of, each powder guide opening (2.7) is arranged along the radial direction and penetrates through the lower chamber, the partition board is provided with a plurality of blade through grooves (2.2) along the circumferential direction, and the square powder conveying holes (2.3) are communicated with the powder guide openings (2.7) through the blade through grooves (2.2); the outer edge of the large cylinder protrudes out of the small cylinder, the upper surface of the outer edge of the large cylinder is used as a mounting surface for mounting the detachable baffle plate module (1), the detachable baffle plate module (1) and the rotary powder guide module (2) are coaxially mounted, the detachable baffle plate module (1) comprises an annular outer ring (1.2) and a baffle plate (1.6), the upper end of the annular outer ring (1.2) is radially provided with a circumferential flange extending inwards, the annular outer ring (1.2) is coaxially sleeved on the periphery of the large cylinder, so that the circumferential flange is in contact connection with the mounting surface of the large cylinder, the mounting surface of the large cylinder is provided with a sliding groove (2.1) along the complete circumferential direction, the circumferential flange is provided with a sliding rail (1.3) matched with the sliding groove (2.1) at a position corresponding to the sliding groove (2.1), and the sliding rail (1.3) and the sliding groove (2.1) form a rolling pair through a; the lower end of the annular outer ring (1.2) is provided with fixing holes (1.4) for installing the baffle plates (1.6) at intervals in sequence along the circumferential direction, a plurality of baffle plates (1.6) are installed in the corresponding fixing holes (1.4) through respective fixing shafts (1.7), the number of the baffle plates (1.6) is equal to that of the powder guide ports (2.7), each baffle plate (1.6) is installed along the radial direction of the annular outer ring (1.2) and enables the upper surface of each baffle plate (1.6) to be in contact connection with the lower surface of the large cylinder, and each baffle plate (1.6) is provided with a plate surface capable of correspondingly closing the size of one powder guide port (2.7); the rotary powder guiding module (2) is provided with a groove on the outer peripheral surface contacted with the detachable baffle plate module (1), a spring positioning pin (2.5) and a controller (2.6) are arranged in the groove, a positioning hole for mounting the spring positioning pin (2.5) is formed in the groove, the spring positioning pin (2.5) is radially arranged in the positioning hole, and the controller (2.6) is connected with the spring positioning pin (2.5) and controls the spring positioning pin (2.5) to extend out of or into the positioning hole; an annular outer ring (1.2) of the detachable baffle plate module (1) rotates relative to the powder guide module (2) under the action of a rolling pair, so that each baffle plate (1.6) correspondingly seals one powder guide opening (2.7); the controller (2.6) controls the spring positioning pin (2.5) to extend out of the positioning hole, so that the other end face of the spring positioning pin (2.5) tightly abuts against the detachable baffle plate module (1), and the detachable baffle plate module (1) and the rotary powder guide module (2) synchronously move under the action of the spring positioning pin (2.5); controller (2.6) control spring locating pin (2.5) stretch into the locating hole in, can dismantle baffle module (1) and rotatory leading powder module (2) and break away from, and motor (3.1) drive shaft (3.2) are rotatory and then drive rotatory leading powder module (2) and rotate, and baffle (1.6) that can dismantle baffle module (1) keep motionless make lead powder mouth (2.7) from the closed condition motion to the open mode.
2. The 3D of dismantling baffle of claim 1 prints and leads powder device which characterized in that: the blade through grooves (2.2) are uniformly distributed on the partition plate in a spiral shape, and the width of each blade through groove (2.2) increases gradually outwards in sequence along the radial direction.
3. The 3D of dismantling baffle of claim 1 prints and leads powder device which characterized in that: each powder guide opening (2.7) is triangular, one corner of each powder guide opening (2.7) points to the circle center of the lower surface of the rotary powder guide module (2), and the plurality of powder guide openings (2.7) are arranged along the circumference in an array mode.
4. The 3D of dismantling baffle of claim 1 prints and leads powder device which characterized in that: the radial end of the baffle (1.6) is fixedly connected with the fixed shaft (1.7), and the other radial end of the baffle (1.6) points to the center of the annular outer ring (1.2).
5. The 3D of dismantling baffle of claim 1 prints and leads powder device which characterized in that: the groove is formed in the outer peripheral surface of the small cylinder which is in contact with the circumferential flange, and the positioning hole is formed in the radial direction of the small cylinder.
CN201910362155.2A 2019-04-30 2019-04-30 Can dismantle 3D of baffle prints and leads powder device Active CN110039052B (en)

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CN110039052B true CN110039052B (en) 2021-07-06

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022109800A1 (en) * 2020-11-24 2022-06-02 武汉路特斯汽车有限公司 Protection device, dust removal device, wheel rim structure and automobile
CN118123017B (en) * 2024-05-07 2024-07-02 株洲美特优硬质合金有限公司 Hard alloy processing technology and processing device

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DE102016211799A1 (en) * 2016-06-30 2018-01-04 Robert Bosch Gmbh Device for the generative production of workpieces
CN107900343A (en) * 2018-01-11 2018-04-13 孟恬静 A kind of loop laser selective melting former and its manufacturing process
CN108177339A (en) * 2017-12-27 2018-06-19 科大天工智能装备技术（天津）有限公司 A kind of continuously shaped increasing material manufacturing laser formation equipment of multizone
CN108500260A (en) * 2017-02-28 2018-09-07 西安科技大学 A kind of efficient rapid molding device of annular four cylinder and method
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016211799A1 (en) * 2016-06-30 2018-01-04 Robert Bosch Gmbh Device for the generative production of workpieces
CN108500260A (en) * 2017-02-28 2018-09-07 西安科技大学 A kind of efficient rapid molding device of annular four cylinder and method
CN108177339A (en) * 2017-12-27 2018-06-19 科大天工智能装备技术（天津）有限公司 A kind of continuously shaped increasing material manufacturing laser formation equipment of multizone
CN107900343A (en) * 2018-01-11 2018-04-13 孟恬静 A kind of loop laser selective melting former and its manufacturing process
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

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