CN113172241A - Movable laser rapid prototyping preheating device - Google Patents
Movable laser rapid prototyping preheating device Download PDFInfo
- Publication number
- CN113172241A CN113172241A CN202110434058.7A CN202110434058A CN113172241A CN 113172241 A CN113172241 A CN 113172241A CN 202110434058 A CN202110434058 A CN 202110434058A CN 113172241 A CN113172241 A CN 113172241A
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- heating
- movable
- powder
- rapid prototyping
- heating pipe
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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
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
- B33Y40/10—Pre-treatment
Abstract
The invention discloses a movable laser rapid prototyping preheating device, which belongs to the technical field of parallel rapid prototyping equipment and comprises an outer protective shell, wherein the inner side of the outer protective shell is provided with a printing bin and a powder transmission bin, the two sides of the powder transmission bin and the top of a building platform are provided with movable heating structures, each movable heating structure comprises two fixing plates movably arranged on the two side walls of the outer protective shell, one opposite sides of the fixing plates are respectively provided with a plurality of heating pipes, a driving rotating shaft driven by a driving motor is arranged above each heating pipe, the outer side of each driving rotating shaft is provided with a plurality of upper rotating wheels with the same axle center, and each upper rotating wheel is respectively corresponding to the top of the corresponding heating pipe; the heating pipe that can the back-and-forth movement is adopted in this design, and the heating pipe is inserted through horizontal migration and is established to the preparation powder inboard, and then realizes the heating, and the heating pipe removes the outside to outer protective housing once more when needing the sintering, can not produce the restriction to the overall arrangement of scanning mirror, and heating device's overall arrangement design does not receive the restriction in laser scanning region.
Description
Technical Field
The invention belongs to the technical field of parallel rapid prototyping equipment, and particularly relates to a movable laser rapid prototyping preheating device.
Background
Application number CN201220247129.9 relates to a movable laser rapid prototyping preheating device for selectivity laser sintering technique, have a hold-in range support of fixing in shop's powder mechanism, it props the hold-in range of opening by last lower belt pulley to be provided with two pairs on the hold-in range support in parallel, hold-in range support one side is equipped with and is used for driving belt pulley forward or reverse rotation's step motor, the symmetry respectively is fixed with a connecting rod on the area of two pairs of hold-in range, install a heating module between two connecting rods, hang a temperature detection module on the connecting rod between heating module and hold-in range support. The preheating device can be used for heating a new powder layer in a short distance when powder is spread, so that the heating waiting time is eliminated, the temperature field of a working surface which is being scanned and processed is uniformly distributed, the heating power of the traditional preheating device is reduced, the preheating device is processed and manufactured in a parallel processing mode, and the manufacturing time is shortened while the quality of a workpiece is ensured.
According to the movable laser rapid prototyping preheating device, the new powder layer is heated in a close range in an up-down moving mode, so that the heating waiting time is eliminated, but the transverse heating range is limited, the scanning mirror of the laser is still likely to be blocked from sintering due to the fact that the movable laser rapid prototyping preheating device is arranged above the building platform, the layout of the scanning mirror is limited, similar technologies capable of solving the problems are not found in the existing research, and therefore the movable laser rapid prototyping preheating device is provided.
Disclosure of Invention
The present invention is directed to a movable preheating device for laser rapid prototyping, so as to solve the above problems in the background art.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a movable laser rapid prototyping preheating device, includes outer protecting casing, the inboard of outer protecting casing has printing storehouse and powder transmission storehouse, the inboard in printing storehouse has powder transmission platform, powder transmission platform is driven by transmission platform drive division, powder transmission platform is used for bearing and treats to use the preparation powder, and the top movable mounting of powder transmission platform has the shop powder gyro wheel, the construction platform is installed to the inboard in powder transmission storehouse, the construction platform is driven by construction platform drive division, the construction platform is arranged in bearing the preparation powder of shaping, shop powder gyro wheel can be followed the horizontal direction and rolled to one side of construction platform, the both sides in powder transmission storehouse and the top that is located the construction platform install portable heating structure, portable heating structure includes two fixed plates of movable mounting on the both sides wall of outer protecting casing, a plurality of heating pipes are all installed to fixed plate one side in opposite directions, the drive pivot by driving motor driven is installed to the top of heating pipe, a plurality of last pulleys with the axle center, every are installed in the outside of drive pivot go up the runner respectively with the top of the heating pipe that corresponds, drive gear is installed to the tip of drive pivot, driven shaft is installed to the below of heating pipe, a plurality of lower pulleys with the axle center, every are installed in driven shaft's the outside lower pulley respectively with the bottom of the heating pipe that corresponds, driven gear is installed to driven shaft's tip, drive gear and driven gear meshing, drive pivot and driven shaft movable mounting are in the outside of outer protection casing.
Furthermore, limiting plates are mounted on two sides of the fixing plate, guide holes are formed in the inner sides of the limiting plates, guide pillars are inserted into the guide holes, and the end portions of the guide pillars are fixedly connected with the outer side wall of the outer protection shell through screws.
Further, arc soaking plates are installed on two sides of the heating pipe, the heating plate is installed at the middle of the arc soaking plates, heat conducting portions are arranged between the upper side and the lower side of the heating plate and the arc soaking plates, the bottom or the top of each heat conducting portion is attached to the heating plate and the arc soaking plates, and the top and the bottom of each heat conducting portion are provided with radians.
Further, the arc soaking plate is fixedly connected with the heating pipe in a welding mode, and the heat conduction portion, the heating plate and the arc soaking plate are of an integrated structure.
Furthermore, the heat conducting part, the heat dissipation plate and the arc-shaped soaking plate are all made of copper.
Further, the inboard of outer protecting the casing is seted up with outer protecting casing, heat-conducting part, heating panel and the anastomotic through-hole of arc soaking board, glue fixedly connected with sealing washer through excelling in on the inner wall of through-hole, the inside wall of sealing washer is contradicted with outer protecting casing, heat-conducting part, heating panel and arc soaking board's lateral wall and is contacted.
Furthermore, a plurality of the heating pipes are parallel to each other, and the heating pipes are connected with a power supply through conducting wires.
Furthermore, arc-shaped grooves are formed in the circumferential side walls of the outer sides of the upper rotating wheel and the lower rotating wheel along the circumferential direction.
Further, the axis of the heating pipe is parallel to the axis of the powder spreading roller.
Furthermore, the adjacent heating pipes are all arranged in parallel, and the axis of the guide post is parallel to the axis of the heating pipe.
Compared with the prior art, the invention has the beneficial effects that:
1. but this design adopts the heating pipe of back-and-forth movement, and when building the platform and covering there is the preparation powder heating, the heating pipe inserts through horizontal migration and establishes to the preparation powder inboard, and then realizes the heating, and the heating pipe removes the outside to outer protective housing once more when needing the sintering, can not produce the restriction to the overall arrangement of scanning mirror, and heating device's overall arrangement design does not receive the restriction in laser scanning region.
2. Through having set up the arc soaking board, can absorb the heat of heating pipe both sides and transmit to the heating panel through the heat-conducting portion on, the even heating of being convenient for and the single heatable region of heating pipe of increase, the thickness that the heat-conducting portion changes simultaneously can be so that the temperature of heating panel is even.
3. Through having set up the heat-conducting portion, can prevent that the heating pipe from taking out to the outside of protecting the casing when removing, avoiding extravagant, and can clear away the preparation powder on heating pipe surface, guarantee the heating effect.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a movable heating structure according to the present invention;
FIG. 3 is a cross-sectional view of the present invention;
FIG. 4 is a schematic structural diagram of a seal ring according to the present invention;
FIG. 5 is a cross-sectional view of a heating tube of the present invention;
in the figure: 1. an outer protective shell; 2. a printing bin; 3. a powder transfer bin; 4. spreading a powder roller; 5. a movable heating structure; 6. heating a tube; 7. a drive motor; 8. a fixing plate; 9. a guide post; 10. a driven rotating shaft; 11. a lower runner; 12. driving the rotating shaft; 13. an upper runner; 14. a drive gear; 15. a driven gear; 16. a limiting plate; 17. building a platform; 18. a build platform drive section; 19. a powder transport platform; 20. a transmission platform driving part; 21. a through hole; 22. a seal ring; 23. a heat conducting portion; 24. a heat dissipation plate; 25. an arc-shaped soaking plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1 to 5, the present invention provides a technical solution: a movable laser rapid prototyping preheating device comprises an outer protection shell 1, wherein a printing bin 2 and a powder transmission bin 3 are arranged on the inner side of the outer protection shell 1, a powder transmission platform 19 is arranged on the inner side of the printing bin 2, the powder transmission platform 19 is driven by a transmission platform driving part 20, the powder transmission platform 19 is used for bearing preparation powder to be used, a powder laying roller 4 is movably arranged above the powder transmission platform 19, a building platform 17 is arranged on the inner side of the powder transmission bin 3, the building platform 17 is driven by a building platform driving part 18, the building platform 17 is used for bearing the preparation powder in forming, the powder laying roller 4 can roll to one side of the building platform 17 along the horizontal direction, movable heating structures 5 are arranged on two sides of the powder transmission bin 3 and positioned at the top of the building platform 17, each movable heating structure 5 comprises two fixing plates 8 movably arranged on two side walls of the outer protection shell 1, a plurality of heating pipes 6 are arranged on one opposite side of the fixing plate 8, the plurality of heating pipes 6 are parallel to each other, the axes of the heating pipes 6 are parallel to the axes of the powder spreading rollers 4, the adjacent heating pipes 6 are parallel to each other, the axes of the guide pillars 9 are parallel to the axes of the heating pipes 6, the heating pipes 6 are connected with a power supply through wires, a driving rotating shaft 12 driven by a driving motor 7 is arranged above the heating pipes 6, a plurality of upper rotating wheels 13 with the same axis are arranged on the outer side of the driving rotating shaft 12, each upper rotating wheel 13 is respectively connected with the top of the corresponding heating pipe 6, a driving gear 14 is arranged at the end part of the driving rotating shaft 12, a driven rotating shaft 10 is arranged below the heating pipes 6, a plurality of lower rotating wheels 11 with the same axis are arranged on the outer side of the driven rotating shaft 10, each lower rotating wheel 11 is respectively, drive gear 14 and driven gear 15 meshing, drive pivot 12 and driven pivot 10 movable mounting are in the outside of protecting casing 1 outward, but this design adopts the heating pipe 6 of back-and-forth movement, and when building platform 17 coats and is stamped the preparation powder heating, heating pipe 6 inserts through horizontal migration and establishes to the preparation powder inboard, and then realize the heating, heating pipe 6 removes the outside to protecting casing 1 outward once more when needing the sintering, can not produce the restriction to the overall arrangement of scanning mirror, and heating device's overall arrangement design does not receive the restriction in laser scanning region.
In this embodiment, limiting plates 16 are all installed on two sides of the fixing plate 8, guide holes are formed in the inner sides of the limiting plates 16, guide pillars 9 are inserted into the guide holes, and the ends of the guide pillars 9 are fixedly connected with the outer side wall of the outer protective shell 1 through screws.
In this embodiment, arc soaking board 25 is all installed to the both sides of heating pipe 6, heating panel 24 is all installed at the middle part of arc soaking board 25, be equipped with heat conduction portion 23 between the upper and lower both sides of heating panel 24 and the arc soaking board 25, the bottom or the top of heat conduction portion 23 and the laminating of heating panel 24 and arc soaking board 25, the top and the bottom of heat conduction portion 23 all have the radian, through having set up arc soaking board 25, can be with the heat absorption of heating pipe 6 both sides and through the heat conduction portion 23 transmission to heating panel 24 on, be convenient for even heating and increase the heatable region of single heating pipe 6, the thickness that heat conduction portion 23 changes simultaneously, can make heating panel 24's temperature even.
In this embodiment, the arc-shaped soaking plate 25 is fixedly connected with the heating pipe 6 by welding, and the heat conducting part 23, the heat dissipating plate 24 and the arc-shaped soaking plate 25 are of an integrated structure.
In this embodiment, the heat conducting portion 23, the heat dissipating plate 24, and the arc-shaped soaking plate 25 are made of copper.
In this embodiment, the inner side of the outer casing 1 is provided with a through hole 21 matching with the outer casing 1, the heat conducting portion 23, the heat dissipating plate 24 and the arc-shaped soaking plate 25, the inner wall of the through hole 21 is fixedly connected with a sealing ring 22 through a strong adhesive, and the inner side wall of the sealing ring 22 is in contact with the outer side walls of the outer casing 1, the heat conducting portion 23, the heat dissipating plate 24 and the arc-shaped soaking plate 25.
In this embodiment, the circumferential side walls of the outer sides of the upper rotating wheel 13 and the lower rotating wheel 11 are provided with arc-shaped grooves along the circumferential direction.
The working principle and the using process of the invention are as follows: when the powder conveying device works, the conveying platform driving part 20 lifts the powder conveying platform 19 filled with the prepared powder to the height of a part, then the powder paving roller 4 pushes the top prepared powder to the building platform 17, then the upper rotating wheel 13 and the lower rotating wheel 11 are driven to rotate by the driving motor 7, thereby realizing that the heating pipe 6 moves towards the inner side of the outer protective shell 1 until being inserted into the prepared powder, then the heating is realized by electrifying, the arc soaking plate 25 can absorb the heat on the two sides of the heating pipe 6 and transmit the heat to the heat dissipation plate 24 through the heat conduction part 23, which is convenient for uniform heating and increasing the heatable area of a single heating pipe 6, meanwhile, the temperature of the heat dissipation plate 24 can be made uniform by the varying thickness of the heat conduction part 23, since the temperature transmission is affected by the thickness of the medium, if only the heat dissipation plate 24 is provided, the thickness of the two ends is unchanged, the temperature of one end close to the heating pipe 6 is higher, and the temperature of the other end is lower; after heating, the motor 7 is driven to rotate reversely, so that the heating pipe 6 moves outwards, the guide post 9 can limit the moving direction of the heating pipe 6 to prevent inclined deviation, the heating pipe 6 capable of moving back and forth is adopted, when the manufacturing powder is covered on the building platform 17 for heating, the heating pipe 6 is inserted into the inner side of the manufacturing powder through horizontal movement, heating is further realized, the heating pipe 6 moves to the outer side of the outer protective shell 1 again when sintering is needed, the layout of the scanning mirror cannot be limited, and the layout design of the heating device is not limited by a laser scanning area; be equipped with heat-conducting part 23 on the inner wall of outer protecting casing 1 inboard through-hole 21, can prevent that when heating pipe 6 removed, will prepare the powder and take out to outer protecting casing 1's the outside, avoid extravagant, and can clear away the preparation powder on heating pipe 6 surface, guarantee the heating effect.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The utility model provides a movable laser rapid prototyping preheating device, includes outer protecting casing (1), the inboard of outer protecting casing (1) has prints storehouse (2) and powder transmission storehouse (3), the inboard of printing storehouse (2) has powder transmission platform (19), powder transmission platform (19) are driven by transmission platform drive division (20), powder transmission platform (19) are used for bearing and treat to use the preparation powder, and the top movable mounting of powder transmission platform (19) has shop's powder gyro wheel (4), building platform (17) is installed to the inboard of powder transmission storehouse (3), building platform (17) are driven by building platform drive division (18), building platform (17) are arranged in bearing the preparation powder in the shaping, shop's powder gyro wheel (4) can roll to one side of building platform (17) along the horizontal direction, its characterized in that, but movable heating structure (5) are installed to the both sides in powder transmission storehouse (3) and the top that is located building platform (17), but movable heating structure (5) include fixed plate (8) on the both sides wall of outer protective casing (1) of two movable mounting, a plurality of heating pipes (6) are all installed to fixed plate (8) one side in opposite directions, drive pivot (12) by driving motor (7) drive are installed to the top of heating pipe (6), a plurality of last runner (13) with the axle center are installed in the outside of drive pivot (12), every go up runner (13) respectively with the top of corresponding heating pipe (6), drive gear (14) are installed to the tip of drive pivot (12), driven shaft (10) are installed to the below of heating pipe (6), a plurality of lower runner (11) with the axle center are installed to the outside of driven shaft (10), every down runner (11) respectively with the bottom of corresponding heating pipe (6), driven gear (15) are installed to the tip of driven rotating shaft (10), drive gear (14) and driven gear (15) meshing, drive pivot (12) and driven rotating shaft (10) movable mounting are in the outside of protecting casing (1) outward.
2. The movable preheating device for laser rapid prototyping of claim 1, wherein: limiting plates (16) are mounted on two sides of the fixing plate (8), guide holes are formed in the inner sides of the limiting plates (16), guide pillars (9) are inserted into the guide holes, and the end portions of the guide pillars (9) are fixedly connected with the outer side wall of the outer protection shell (1) through screws.
3. The movable preheating device for laser rapid prototyping of claim 1, wherein: arc soaking board (25) are all installed to the both sides of heating pipe (6), heating panel (24) are all installed at the middle part of arc soaking board (25), be equipped with between the upper and lower both sides of heating panel (24) and arc soaking board (25) heat conduction portion (23), the bottom or the top of heat conduction portion (23) and heating panel (24) and arc soaking board (25) laminating, the top and the bottom of heat conduction portion (23) all have the radian.
4. The movable laser rapid prototyping preheating device of claim 3 wherein: arc soaking board (25) and heating pipe (6) are through welded fastening connection, heat conduction portion (23), heating panel (24) and arc soaking board (25) formula structure as an organic whole.
5. The movable laser rapid prototyping preheating device of claim 3 wherein: the heat conducting part (23), the heat dissipation plate (24) and the arc soaking plate (25) are all made of copper.
6. The movable preheating device for laser rapid prototyping of claim 1, wherein: the utility model discloses a heat dissipation device, including outer protection casing (1), heat-conducting part (23), heating panel (24) and arc soaking board (25), the inboard of outer protection casing (1) is seted up with outer protection casing (1), heat-conducting part (23), heating panel (24) and the anastomotic through-hole (21) of arc soaking board (25), glue fixedly connected with sealing washer (22) through force on the inner wall of through-hole (21), the inside wall of sealing washer (22) contradicts the contact with the lateral wall of outer protection casing (1), heat-conducting part (23), heating panel (24) and arc soaking board (25).
7. The movable preheating device for laser rapid prototyping of claim 1, wherein: the heating pipes (6) are parallel to each other, and the heating pipes (6) are connected with a power supply through leads.
8. The movable preheating device for laser rapid prototyping of claim 1, wherein: arc-shaped grooves are formed in the circumferential side wall of the outer side of the upper rotating wheel (13) and the outer side of the lower rotating wheel (11) along the circumferential direction.
9. The movable preheating device for laser rapid prototyping of claim 1, wherein: the axis of the heating pipe (6) is parallel to the axis of the powder spreading roller (4).
10. The movable laser rapid prototyping preheating device of claim 1 or 2, wherein: the adjacent heating pipes (6) are arranged in parallel, and the axes of the guide posts (9) are parallel to the axes of the heating pipes (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110434058.7A CN113172241A (en) | 2021-04-22 | 2021-04-22 | Movable laser rapid prototyping preheating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110434058.7A CN113172241A (en) | 2021-04-22 | 2021-04-22 | Movable laser rapid prototyping preheating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113172241A true CN113172241A (en) | 2021-07-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110434058.7A Withdrawn CN113172241A (en) | 2021-04-22 | 2021-04-22 | Movable laser rapid prototyping preheating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113172241A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115213430A (en) * | 2021-10-08 | 2022-10-21 | 湖南云箭集团有限公司 | 3D printing powder material forming temperature field blank slow-seepage device and application thereof |
-
2021
- 2021-04-22 CN CN202110434058.7A patent/CN113172241A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115213430A (en) * | 2021-10-08 | 2022-10-21 | 湖南云箭集团有限公司 | 3D printing powder material forming temperature field blank slow-seepage device and application thereof |
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Application publication date: 20210727 |