CN112846235A - Laser sintering device capable of efficiently removing dust - Google Patents
Laser sintering device capable of efficiently removing dust Download PDFInfo
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- CN112846235A CN112846235A CN202110015680.4A CN202110015680A CN112846235A CN 112846235 A CN112846235 A CN 112846235A CN 202110015680 A CN202110015680 A CN 202110015680A CN 112846235 A CN112846235 A CN 112846235A
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- dust
- pipe
- plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/141—Processes of additive manufacturing using only solid materials
- B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/35—Cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention relates to the field of laser sintering, in particular to a high-efficiency dust removal laser sintering device which comprises a cavity bottom plate, a scraper arm and two groups of guide rails, wherein the cavity bottom plate is bilaterally symmetrically provided with guide ports along the length direction of the cavity bottom plate, the top of the cavity bottom plate is bilaterally symmetrically provided with an L-shaped baffle positioned on the upper side of the guide ports, the cavity bottom plate is bilaterally symmetrically connected with a sliding mechanism in a sliding manner, the front side of the bottom of the cavity bottom plate is provided with a dust removal mechanism, the scraper arm support is arranged between the top sides of the two groups of sliding mechanisms, the two groups of guide rails; according to the scraper arm, the guide rail is arranged at the bottom side of the cavity bottom plate, and dust in the moving direction of the sliding block is continuously absorbed through the blocking effect of the L-shaped baffle plate in the moving process of the scraper arm, so that the dust is effectively prevented from falling on the guide rail, and the influence of the dust on the sliding fit of the sliding block and the guide rail is effectively reduced.
Description
Technical Field
The invention relates to the field of laser sintering, in particular to a laser sintering device capable of efficiently removing dust.
Background
The selective laser sintering process is a typical application of laser in the field of rapid prototyping, and the processing process comprises the following steps: the powder feeding device sends a certain amount of powder to a working table, the powder paving device flatly paves a layer of powder material on the upper surface of a formed part in a forming cylinder, the heating device heats the powder to a set powder sintering temperature, the vibrating mirror system controls a laser to scan a solid part powder layer according to the section outline of the layer, the temperature of the powder is raised to a melting point, and the powder is melted and sintered and is bonded with the formed part below; after the section of one layer is sintered, the working table is lowered by the thickness of one layer, the powder spreading device is used for spreading a layer of uniform and compact powder on the working table, the section of a new layer is scanned and sintered, and the powder is scanned and stacked by a plurality of layers until the whole part is manufactured. But work cavity and shop can't keep apart completely between the powder device, leave a rectangular breach usually to in the laser sintering process, impurity such as dust, smog can fall on the guide rail surface through this rectangular breach because of the inside air current of work cavity, and finally get into gradually with inside the guide rail complex slider, thereby influence the shop's powder function of equipment, lead to the slider to become invalid even, shop's powder work can't realize.
At present, chinese patent No. 201611125083.2 provides a laser sintering apparatus and a dust-proof mechanism thereof, wherein the laser sintering apparatus includes a shielding device that covers a long notch for movement of a scraper arm when the apparatus is in a laser sintering state; the dustproof mechanism comprises a push rod, a transmission component, an elastic component and a baffle plate, wherein the push rod is arranged on one side, close to a working area, of a powder paving completion limit position, so that when the scraper arm moves and contacts with the push rod, the push rod is pushed to move by the continuous movement of the scraper arm, meanwhile, the elastic component is compressed to generate elastic deformation, the baffle plate is driven to move by the movement of the push rod through the transmission component, and when the scraper arm moves to the powder paving completion limit position, the baffle plate completely covers the strip notch under the driving of the transmission component; the technical scheme isolates the working cavity from the guide rail and the sliding block, thereby ensuring the reliable operation of powder paving work.
However, in the application process, the above technical solution has the following defects and shortcomings:
when the sliding block is in a laser sintering state, the notch still exists, and dust generated by laser sintering is easy to fall to the surface of the guide rail through the notch of the door, so that the matching of the sliding block and the guide rail is influenced.
Disclosure of Invention
Solves the technical problem
Aiming at the defects in the prior art, the invention provides the laser sintering device for efficiently removing dust, which can effectively solve the problem that in the prior art, when the laser sintering device is in a laser sintering state, a gap still exists, and dust generated by laser sintering is easy to fall onto the surface of a guide rail through a gap of a department, so that the matching of a sliding block and the guide rail is influenced.
Technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
a high-efficiency dust removal laser sintering device comprises a cavity bottom plate, scraper arms and two groups of guide rails, wherein guide ports along the length direction of the cavity bottom plate are symmetrically formed in the left and right of the cavity bottom plate, L-shaped baffles positioned on the upper sides of the guide ports are symmetrically arranged in the left and right of the top of the cavity bottom plate, the cavity bottom plate is symmetrically connected with sliding mechanisms in a sliding mode in the left and right mode, a dust removal mechanism is arranged on the front side of the bottom of the cavity bottom plate, the scraper arms are arranged between the top sides of the two groups of sliding mechanisms, the two groups of guide rails are symmetrically arranged on the;
the sliding mechanism comprises a transverse plate, a first L-shaped connecting plate, a second L-shaped connecting plate, a sliding block and a dust hood, wherein the first L-shaped connecting plate is erected at the top of the transverse plate and is far away from one side of the L-shaped baffle, the second L-shaped connecting plate is erected at one side of the transverse plate, which is close to one side of the L-shaped baffle, the sliding block is erected at the top of the transverse section of the second L-shaped connecting plate and is in sliding fit with the guide rail, the dust hood is erected at the bottom of the transverse section of the second L-shaped connecting plate, the scraper arm support is arranged between the top sides of the transverse sections of the two groups of;
dust removal mechanism is including erectting the dust absorption pump in cavity bottom plate bottom front side, through the splint of arc bridging connection at the dust absorption pump rear side, the dirt pipe of joint between splint and dust absorption pump, connect the hose at the splint rear side and lead the dirt pipe at the hose other end through the three-way pipe connection, dust absorption pump rear side input end threaded connection has the screen panel, leads the other both ends of dirt pipe and is connected with the connecting pipe respectively and communicates with each other.
Furthermore, the cross section of the guide opening is of an inverted trapezoidal structure; the dust is conveniently sucked into the dust hood through the guide opening.
Furthermore, reinforcing ribs are obliquely arranged between the top side of the transverse plate and the longitudinal section of the second L-shaped connecting plate; improve the structural stability between diaphragm and the second L type connecting plate.
Furthermore, the length of the dust hood is greater than that of the sliding block, and notches are formed in the front side and the rear side of the top of the dust hood; through the breach for the guide rail passes and wears out the suction hood, is greater than slider length through suction hood length, carries out the dust absorption to the front and back side of slider slip direction, carries out the dust absorption in advance to slider slip direction promptly, thereby effectively reduces the dust and gets into in the slider.
Furthermore, a dust collecting chamber is arranged at the bottom side of the middle part of the dust pipe; the dust collecting space of the dust pipe is improved.
Furthermore, an annular clamping groove is formed in the front side of the clamping plate, an annular cavity is formed in the edge of the rear portion of the dust pipe, a clamping pipe in clamping fit with the annular clamping groove is connected in the annular cavity in a sliding mode, and a plurality of groups of springs are connected between the front side wall of the clamping pipe and the rear side wall of the annular cavity; through the joint cooperation of card pipe and ring groove to and under the effect of a plurality of group springs, make card pipe and splint closely laminate, realize the dirt pipe strap between splint and dust absorption pump, when removing the card pipe to dust absorption pump direction, make the card pipe shift out from ring groove, thereby can follow the dirt pipe and take off between splint and the dust absorption pump, thereby be convenient for clear up the intraductal dust of dirt.
Furthermore, an arc limiting plate is arranged on the outer side wall of the circumference of the clamping pipe; through the arc limiting plate, not only carry on spacingly to the card pipe, be convenient for remove the card pipe moreover.
Advantageous effects
Compared with the known public technology, the technical scheme provided by the invention has the following beneficial effects:
according to the scraper arm, the guide rail is arranged at the bottom side of the cavity bottom plate, and dust in the moving direction of the sliding block is continuously absorbed through the blocking effect of the L-shaped baffle plate in the moving process of the scraper arm, so that the dust is effectively prevented from falling on the guide rail, and the influence of the dust on the sliding fit of the sliding block and the guide rail is effectively reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic top-side view of the present invention;
FIG. 2 is a schematic view of the present invention showing a bottom view and a side view;
FIG. 3 is a schematic cross-sectional view of the present invention;
FIG. 4 is a schematic structural diagram of a sliding mechanism according to the present invention;
FIG. 5 is a schematic structural diagram of a dust removing mechanism of the present invention;
FIG. 6 is a schematic cross-sectional view of a portion of the dust removing mechanism of the present invention;
the reference numerals in the drawings denote: 1-a cavity bottom plate; 2-a scraper arm; 3-a guide rail; 4-leading the mouth; 5-L-shaped baffle plates; 6-a transverse plate; 7-a first L-shaped connecting plate; 8-a second L-shaped connecting plate; 9-a slide block; 10-a dust hood; 11-a connecting tube; 12-a dust suction pump; 13-an arc-shaped frame; 14-a splint; 15-dust pipe; 16-a spiral hose; 17-a tee pipe; 18-a dust guide pipe; 19-a strainer cover; 20-reinforcing ribs; 21-a dust collecting chamber; 22-ring card slot; 23-clamping the tube; 24-a spring; 25-arc limiting plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all 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.
The present invention will be further described with reference to the following examples.
Examples
The laser sintering device for high-efficiency dust removal of the embodiment is as follows, with reference to fig. 1 to 6: the dust removal device comprises a cavity bottom plate 1, scraper arms 2 and two groups of guide rails 3, wherein the cavity bottom plate 1 is bilaterally symmetrically provided with guide ports 4 along the length direction of the cavity bottom plate, the top of the cavity bottom plate 1 is bilaterally symmetrically provided with L-shaped baffles 5 positioned on the upper sides of the guide ports 4, the cavity bottom plate 1 is bilaterally symmetrically and slidably connected with sliding mechanisms, the front side of the bottom of the cavity bottom plate 1 is provided with a dust removal mechanism, the scraper arms 2 are erected between the top sides of the two groups of sliding mechanisms, the two groups of guide rails 3 are symmetrically arranged on the left side and the right side of the;
the sliding mechanism comprises a transverse plate 6, a first L-shaped connecting plate 7 erected at the top of the transverse plate 6 and far away from one side of the L-shaped baffle 5, a second L-shaped connecting plate 8 erected at one side of the transverse plate 6 close to the L-shaped baffle 5, a sliding block 9 erected at the top of the transverse section of the second L-shaped connecting plate 8 and in sliding fit with the guide rail 3, and a dust hood 10 erected at the bottom of the transverse section of the second L-shaped connecting plate 8, the scraper arm 2 is erected between the top sides of the transverse sections of the two groups of first L-shaped connecting plates 7, the longitudinal section of the second L-shaped connecting plate 8 penetrates through and penetrates out of the guide port 4, and a connecting pipe 11 communicated with the;
the dust removing mechanism comprises a dust suction pump 12 erected on the front side of the bottom of the cavity bottom plate 1, a clamping plate 14 connected to the rear side of the dust suction pump 12 through an arc-shaped frame 13, a dust pipe 15 clamped between the clamping plate 14 and the dust suction pump 12, a spiral hose 16 connected to the rear side of the clamping plate 14, and a dust guide pipe 18 connected to the other end of the spiral hose 16 through a three-way pipe 17, wherein the input end of the rear side of the dust suction pump 12 is in threaded connection with a filter screen cover 19, and the other two ends of the dust guide pipe 18 are respectively connected and communicated.
Wherein, the cross section of the guide opening 4 is in an inverted trapezoidal structure; so that dust can be sucked into the dust hood 10 through the guide opening 4.
Reinforcing ribs 20 are obliquely arranged between the top side of the transverse plate 6 and the longitudinal section of the second L-shaped connecting plate 8; the structural stability between the transverse plate 6 and the second L-shaped connecting plate 8 is improved.
Wherein, the length of the dust hood 10 is larger than that of the sliding block 9, and the front side and the rear side of the top of the dust hood 10 are provided with notches; through the breach for guide rail 3 passes and wears out suction hood 10, is greater than slider 9 length through suction hood 10 length, carries out the dust absorption to the front and back side of slider 9 sliding direction, carries out the dust absorption in advance to slider 9 sliding direction promptly, thereby effectively reduces the dust and gets into in the slider 9.
Wherein, the bottom side of the middle part of the dust pipe 15 is provided with a dust collecting chamber 21; the dust collecting space of the dust pipe 15 is increased.
An annular clamping groove 22 is formed in the front side of the clamping plate 14, an annular cavity is formed in the rear edge of the dust pipe 15, a clamping pipe 23 in clamping fit with the annular clamping groove 22 is connected in the annular cavity in a sliding mode, and a plurality of groups of springs 24 are connected between the front side wall of the clamping pipe 23 and the rear side wall of the annular cavity; through the joint cooperation of card pipe 23 and ring groove 22 to and under the effect of a plurality of groups of springs 24, make card pipe 23 and splint 14 closely laminate, realize that dirt pipe 15 card is between splint 14 and dust absorption pump 12, when removing card pipe 23 to dust absorption pump 12 direction, make card pipe 23 shift out from ring groove 22, thereby can follow the dirt pipe 15 and take off between splint 14 and dust absorption pump 12, thereby be convenient for clear up the dust in the dirt pipe 15.
Wherein, the outer circumferential side wall of the clamping pipe 23 is provided with an arc limiting plate 25; through arc limiting plate 25, not only spacing card pipe 23, be convenient for remove card pipe 23 moreover.
The working principle is as follows: the guide rail 3 is arranged at the bottom side of the cavity bottom plate 1, and the L-shaped baffle 5 is arranged, so that dust is effectively reduced from falling on the guide rail 3, when the scraper arm 2 moves, the transverse plate 6, the first L-shaped connecting plate 7 and the second L-shaped connecting plate 8 are matched with each other to drive the sliding block 9 to slide along the guide rail 3, meanwhile, the dust suction pump 12 generates suction force to suck dust on the guide rail 3 and on the peripheral side of the guide rail into the dust suction cover 10 in time, and the dust sucked into the dust suction cover 10 enters the dust pipe 15 through the dust guide pipe 18 and the spiral hose 16, so that the dust is sucked, the dust is effectively prevented from falling on the guide rail 3, and the influence of the dust on the sliding fit of the sliding block 9 and the guide rail 3 is effectively reduced; meanwhile, the dust pipe 15 can be taken down from between the clamping plate 14 and the dust suction pump 12 by moving the clamping pipe 23 towards the dust suction pump 12, and the dust in the dust pipe 15 can be cleaned.
The device is through setting up guide rail 3 in the bottom side of cavity bottom plate 1 to through the effect that blocks of L type baffle 5, and remove the in-process at scraper arm 2, constantly absorb the dust with slider 9 moving direction, thereby effectively avoid the dust to fall on guide rail 3, and then effectively reduce the influence of dust to slider 9 and guide rail 3 sliding fit.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (7)
1. The utility model provides a laser sintering device of high-efficient dust removal, includes cavity bottom plate (1), scraper arm (2) and two sets of guide rail (3), its characterized in that: the scraper device is characterized in that guide openings (4) along the length direction of the cavity bottom plate (1) are symmetrically arranged on the left and right sides of the cavity bottom plate (1), L-shaped baffles (5) positioned on the upper sides of the guide openings (4) are symmetrically arranged on the left and right sides of the top of the cavity bottom plate (1), sliding mechanisms are symmetrically connected to the left and right sides of the cavity bottom plate (1) in a sliding manner, a dust removal mechanism is arranged on the front side of the bottom of the cavity bottom plate (1), the scraper arms (2) are erected between the top sides of the two groups of sliding mechanisms, the two groups of guide rails (3) are symmetrically arranged on the left and right sides of the;
the sliding mechanism comprises a transverse plate (6), a first L-shaped connecting plate (7) erected at the top of the transverse plate (6) and far away from one side of the L-shaped baffle (5), a second L-shaped connecting plate (8) erected at one side of the transverse plate (6) close to the L-shaped baffle (5), a sliding block (9) erected at the top of the transverse section of the second L-shaped connecting plate (8) and in sliding fit with the guide rail (3), and a dust hood (10) erected at the bottom of the transverse section of the second L-shaped connecting plate (8), the scraper arm (2) is erected between the top sides of the transverse sections of the two groups of first L-shaped connecting plates (7), the longitudinal section of the second L-shaped connecting plate (8) penetrates through and penetrates out of the guide opening (4), and a connecting pipe (11) communicated with the longitudinal section is arranged at the bottom;
dust removal mechanism is including erectting dust absorption pump (12) in cavity bottom plate (1) bottom front side, connect splint (14) in dust absorption pump (12) rear side through arc frame (13), dust pipe (15) of joint between splint (14) and dust absorption pump (12), connect at the spiral hose (16) of splint (14) rear side and connect leading dirt pipe (18) at the spiral hose (16) other end through three-way pipe (17), dust absorption pump (12) rear side input end threaded connection has screen panel (19), it communicates with each other to lead dirt pipe (18) other both ends and be connected with connecting pipe (11) respectively.
2. The laser sintering device for high-efficiency dust removal as claimed in claim 1, wherein the cross section of the guide port (4) is in an inverted trapezoidal structure.
3. The laser sintering device for high-efficiency dust removal according to claim 1, characterized in that reinforcing ribs (20) are obliquely arranged between the top side of the transverse plate (6) and the longitudinal section of the second L-shaped connecting plate (8).
4. The laser sintering device for high-efficiency dust removal according to claim 1, wherein the length of the dust hood (10) is greater than that of the sliding block (9), and notches are formed in the front side and the rear side of the top of the dust hood (10).
5. The laser sintering device for high-efficiency dust removal according to claim 1, wherein a dust collection chamber (21) is arranged at the bottom side of the middle part of the dust pipe (15).
6. The laser sintering device for efficient dust removal according to claim 1, wherein an annular clamping groove (22) is formed in the front side of the clamping plate (14), an annular cavity is formed in the rear edge of the dust pipe (15), a clamping pipe (23) in clamping fit with the annular clamping groove (22) is connected in the annular cavity in a sliding mode, and a plurality of groups of springs (24) are connected between the front side wall and the rear side wall of the annular cavity of the clamping pipe (23).
7. The laser sintering device for high-efficiency dust removal as claimed in claim 6, wherein the outer circumferential wall of the clamping tube (23) is provided with an arc-shaped limiting plate (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110015680.4A CN112846235A (en) | 2021-01-07 | 2021-01-07 | Laser sintering device capable of efficiently removing dust |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110015680.4A CN112846235A (en) | 2021-01-07 | 2021-01-07 | Laser sintering device capable of efficiently removing dust |
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| CN112846235A true CN112846235A (en) | 2021-05-28 |
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| CN202110015680.4A Pending CN112846235A (en) | 2021-01-07 | 2021-01-07 | Laser sintering device capable of efficiently removing dust |
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Application publication date: 20210528 |
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