CN210824075U - Electromagnetic vibration feeding device for selective laser sintering - Google Patents
Electromagnetic vibration feeding device for selective laser sintering Download PDFInfo
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- CN210824075U CN210824075U CN201921733239.4U CN201921733239U CN210824075U CN 210824075 U CN210824075 U CN 210824075U CN 201921733239 U CN201921733239 U CN 201921733239U CN 210824075 U CN210824075 U CN 210824075U
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Abstract
The scheme relates to the technical field of 3D printing, in particular to an electromagnetic vibration feeding device for selective laser sintering, which comprises a vibration feeding mechanism and a powder spreading mechanism, wherein the vibration feeding mechanism comprises a vibration mechanism and a powder supply mechanism, the vibration mechanism comprises an electromagnet, a movable iron core, an elastic connecting rod and a vibration support, the electromagnet is fixed in a fixed groove on a base support, the movable iron core is connected with the vibration support, the vibration support is connected with the base support at the bottom through the elastic connecting rod, the powder supply mechanism comprises a vibration discharging hopper and a storage hopper, the vibration discharging hopper is arranged at the front end of the vibration support, the storage hopper is fixed above the vibration discharging hopper, the powder spreading mechanism comprises a guide rail, a slide block, a powder spreading roller, a powder supply roller and a powder roller support, wherein the slide block guide rail mechanism is fixed above a reference plate, the powder supply roller and the powder spreading roller are respectively positioned at two ends of the reference plate and, the powder roller bracket is connected with the lower sliding block. The utility model discloses an electromagnetic vibration principle carries out the feed, and is steady reliable, and feed rate is adjustable controllable, saves the manual work to leave away and supply the powder case structure, increase shaping box size has enlarged workable structure size range.
Description
Technical Field
The utility model belongs to the 3D printing apparatus field, concretely relates to selectivity electromagnetic vibration feedway for laser sintering.
Background
The selective laser sintering technology (SLS) is born in the end of the 20 th century 80 years, the thought of layer-by-layer accumulation is taken as a basic idea, the principle is that a high-energy laser is utilized to process powder materials layer by layer to form a three-dimensional entity, the specific steps are that the powder materials are fully preheated through printing equipment, the processed powder materials are enabled to be in an active state and simultaneously are enabled not to be molten, then, a powder spreading mechanism and a laser sintering mechanism are utilized to repeatedly carry out a powder spreading-sintering process, processing is carried out under the monitoring and adjustment of a control system, and finally, heat preservation and redundant powder cleaning are carried out to complete the printing process. The selective laser sintering technology has been applied to the fields of medical treatment, education, aerospace engineering and the like because of the advantages of high forming speed, no need of support, wide range of processable materials, complex forming structure and the like.
At present, the electromagnetic vibration feeding device of the selective laser sintering machine is researched less in China, and the lack of the powder feeding mechanism can limit the size design of the forming box and the powder feeding box, so that the size of the formed part is limited, and the application range of the selective laser sintering machine is limited.
SUMMERY OF THE UTILITY MODEL
The utility model provides a selectivity is electromagnetic vibration feedway for laser sintering provides a 3D printing feed mode, solves and supplies powder case occupation structural space, and the shaping case size is less, the limited problem of shaped part size.
In order to solve the above problem, the utility model provides a following scheme: an electromagnetic vibration feeding device for selective laser sintering comprises a vibration feeding mechanism and a powder spreading mechanism, wherein the vibration feeding mechanism comprises a vibration mechanism and a powder supplying mechanism, the vibration mechanism comprises an electromagnet, a movable iron core, an elastic connecting rod and a vibration support which are connected, the movable iron core is fixed below the vibration support in a fixing groove on a support of the electromagnet mounting base, the elastic connecting rod is formed by connecting three layers of steel plates, the powder supplying mechanism comprises a vibration discharging hopper and a storage hopper, the vibration discharging hopper is fixed at the front end of the vibration support, the storage hopper is arranged above the vibration discharging hopper, the powder spreading mechanism comprises a sliding block guide rail mechanism and a powder roller mechanism, the sliding block guide rail mechanism is fixed above a reference plate, the powder roller mechanism comprises a powder supplying roller, a powder spreading roller and a powder roller fixing mechanism, the powder roller fixing mechanism comprises a powder roller support and a powder roller bearing, the powder supply roller and the powder spreading roller are respectively positioned at two ends of the reference plate, and the powder roller bracket is connected with the lower sliding block.
2. Further: the electromagnet is arranged in a fixed groove on the base bracket.
3. Further: the movable iron core is connected with the vibration support through a bolt.
4. Further: the elastic connecting rod is composed of three layers of steel sheets and is connected into a whole through a bolt.
5. Further: the vibration discharging hopper is installed at the front end of the vibration support through a bolt.
6. Further: the lower end of the storage hopper is provided with a baffle plate which is arranged in a slot at the lower end of the storage hopper.
7. Further: the upper end of the storage hopper is arranged outside the machine.
8. Further: the powder supply roller and the powder spreading roller are arranged at two ends of the guide rail and share the same guide rail.
9. Further: and a threaded hole is formed below the fixing groove, and the fixing groove is connected with the base support through a screw.
The beneficial effect of this scheme does:
1. the utility model discloses a selectivity laser sintering is with electromagnetic vibration feedway can solve the inconvenient problem of selectivity laser sintering machine feed material, changes directly to the shaping case and supply the reinforced mode of powder case, and unified add powder material by trapezoidal pan feeding mouth, and not only convenient operation also avoids the human body to be in the dust environment for a long time and receives the injury.
2. The utility model discloses a selectivity is electromagnetic vibration feedway for laser sintering adopts electromagnetic vibration's mode to carry out the feed material, can make the feed process steady reliable to the electro-magnet range of vibrations is adjusted to the feed volume accessible controls.
3. The electromagnetic vibration feeding device for selective laser sintering can replace a powder supply box to supply powder, so that a powder supply box structure can be omitted, the size of a forming box body is increased, and the size range of a machinable structural part is enlarged.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural view of the guide rail slider of the present invention;
in the figure: 1-spreading a powder roller; 2-a guide rail; 3-a slide block; 4-a powder roller bracket; 5-powder roller bearing; 6-powder supply roller; 7-an electromagnet; 8-a movable iron core; 9-vibrating the connecting rod; 10-a vibrating support; 11-vibrating the discharge hopper; 12-a storage hopper;
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Please refer to fig. 2 an electromagnetic vibration feeding device for selective laser sintering, including vibrations feeding mechanism and powder paving mechanism, vibrations feeding mechanism includes vibrations mechanism and supplies powder mechanism to constitute, vibrations mechanism includes electro-magnet (7), move iron core (8), elastic connecting rod (9) and vibrations support (10), electro-magnet (8) are fixed in the fixed slot on the base support, it links to each other with vibrations support (10) to move iron core (8), link to each other through elastic connecting rod (9) between vibrations support (10) and bottom base support, supply powder mechanism including vibrations hopper (11) and storage hopper (12), vibrations hopper (11) are installed in vibrations support (10) front end, storage hopper (12) are fixed in vibrations hopper (11) top, powder paving mechanism includes guide rail (2), slider (3), powder paving roller (1), supply powder roller (6), The powder roller support (4), wherein slider guide rail mechanism fixes in the benchmark board top, supplies powder roller (6) and spreads powder roller (1) to be located benchmark board both ends respectively and installs in powder roller support (4) through powder roller bearing (5), and powder roller support (4) link to each other with below slider (3).
Furthermore, the lower end of the electromagnet (7) is provided with a threaded hole and is fixed in the fixing groove through a screw.
Furthermore, a threaded hole is formed in the movable iron core and connected with the vibration support through a bolt.
Furthermore, the vibration connecting rod is composed of three elastic steel plates which are connected into a whole through bolts.
Furthermore, a threaded through hole is designed at one end of the vibrating discharge hopper and is fixed on the vibrating support through a bolt.
Furthermore, the lower end of the storage hopper is provided with a slot which can be used for inserting a baffle plate to control the amount of powder entering the vibrating discharge hopper.
Further: the guide rail is a linear guide rail and is fixed on the reference plate through screws.
Further: threaded holes are arranged around the storage hopper and are fixed on a sintering machine bracket by bolts.
The working principle of the scheme is as follows: the single-phase alternating current supplies power to the electromagnetic coil after half-wave rectification, in a positive half-period, because current passes through the electromagnetic coil, pulse electromagnetic force is generated between the iron core and the armature, the iron core and the armature generate relative motion, and the elastic connecting rod is stressed and bent; the negative half period, iron core and electro-magnet interact power disappear, the iron core resets under the effect of elastic connecting rod, repeated this process realizes periodic vibrations, powder granule slides down along the hopper under the vibrations effect in the vibrations hopper, realize the feeding process, through adjusting the size that lets in the electro-magnet electric current, change the amplitude, thereby control the feed volume, after powder that satisfies the feed requirement is piled up on the benchmark board, stop the feeding process, supply the powder roller to carry out the plane under motor drive and spread the powder, spread the powder roller and spread the powder once more afterwards, make the powder material surfacing, satisfy the laser sintering requirement.
Claims (11)
1. The utility model provides a selectivity electromagnetic vibration feedway for laser sintering which characterized in that: the powder feeding mechanism comprises a vibration feeding mechanism and a powder spreading mechanism, wherein the vibration feeding mechanism comprises a vibration mechanism and a powder supplying mechanism, the vibration mechanism comprises an electromagnet, a movable iron core, an elastic connecting rod and a vibration support, the electromagnet is fixed in a fixed groove on a base support, the movable iron core is connected with the vibration support, the elastic connecting rod is respectively connected with the vibration support and a bottom base support, the powder supplying mechanism comprises a vibration discharging hopper and a storage hopper, the vibration discharging hopper is arranged at the front end of the vibration support, the storage hopper is fixed above the vibration discharging hopper, the powder spreading mechanism comprises a slider guide rail mechanism and a powder roller mechanism, the slider guide rail mechanism is fixed above a reference plate, the powder roller mechanism comprises a powder supplying roller, a powder spreading roller and a powder roller fixing mechanism, the powder roller fixing mechanism comprises a powder roller support and a powder roller bearing, the powder supplying roller and the powder spreading roller are respectively positioned at two ends of the reference plate, the powder roller bracket is connected with the lower sliding block.
2. The electromagnetic vibration feeding device for selective laser sintering according to claim 1, wherein: the electromagnet is fixed through a fixing groove arranged on the base support.
3. The electromagnetic vibration feeding device for selective laser sintering according to claim 1, wherein: the movable iron core is connected with the vibration support through a bolt.
4. The electromagnetic vibration feeding device for selective laser sintering according to claim 1, wherein: the vibration connecting rod is composed of three layers of steel sheets.
5. The electromagnetic vibration feeding device for selective laser sintering according to claim 1, wherein: the vibration discharging hopper is installed on the vibration support through a bolt.
6. The electromagnetic vibration feeding device for selective laser sintering according to claim 1, wherein: the lower end of the storage hopper is provided with a baffle plate.
7. The electromagnetic vibration feeding device for selective laser sintering according to claim 1, wherein: a certain gap is left between the storage hopper and the discharge hopper.
8. The electromagnetic vibration feeding device for selective laser sintering according to claim 1, wherein: the guide rail is a linear guide rail and is fixed on the reference plate through screws.
9. The electromagnetic vibration feeding device for selective laser sintering according to claim 1, wherein: the powder supply roller and the powder spreading roller are respectively arranged at two ends of the track and share the same guide rail.
10. The electromagnetic vibration feeding device for selective laser sintering according to claim 2, wherein: and a threaded hole is formed below the fixing groove, and the fixing groove is connected with the base support through a screw.
11. The electromagnetic vibration material supply device for selective laser sintering according to claim 6, wherein: the baffle is arranged in the slot at the lower end of the storage hopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921733239.4U CN210824075U (en) | 2019-10-16 | 2019-10-16 | Electromagnetic vibration feeding device for selective laser sintering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921733239.4U CN210824075U (en) | 2019-10-16 | 2019-10-16 | Electromagnetic vibration feeding device for selective laser sintering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210824075U true CN210824075U (en) | 2020-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921733239.4U Expired - Fee Related CN210824075U (en) | 2019-10-16 | 2019-10-16 | Electromagnetic vibration feeding device for selective laser sintering |
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| Country | Link |
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| CN (1) | CN210824075U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113458421A (en) * | 2020-07-24 | 2021-10-01 | 云耀深维(江苏)科技有限公司 | Equipment system and method for improving powder bed quality in additive manufacturing process |
-
2019
- 2019-10-16 CN CN201921733239.4U patent/CN210824075U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113458421A (en) * | 2020-07-24 | 2021-10-01 | 云耀深维(江苏)科技有限公司 | Equipment system and method for improving powder bed quality in additive manufacturing process |
| CN113458421B (en) * | 2020-07-24 | 2024-02-27 | 云耀深维(江苏)科技有限公司 | Equipment system and method for improving quality of powder bed in additive manufacturing process |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200623 Termination date: 20211016 |