CN210848327U - Heatable powder roller mechanism for selective laser sintering - Google Patents
Heatable powder roller mechanism for selective laser sintering Download PDFInfo
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- CN210848327U CN210848327U CN201921852624.0U CN201921852624U CN210848327U CN 210848327 U CN210848327 U CN 210848327U CN 201921852624 U CN201921852624 U CN 201921852624U CN 210848327 U CN210848327 U CN 210848327U
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- powder roller
- powder
- laser sintering
- selective laser
- heatable
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- 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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Abstract
The utility model discloses a selectivity is heatable powder roller mechanism for laser sintering aims at realizing heating powder material spreading the powder in-process, and make full use of spreads the powder process, shortens preheating time to eliminate the time consumption of waiting for the powder intensification after the heating, improve process rate. The powder roller heating mechanism comprises an intermediate shaft, a locking nut, a powder roller sleeve, a thermal assembly and an insulating assembly, wherein the locking nut is installed at one end of the intermediate shaft, the heating assembly comprises a wire, an electric brush, a copper ring, a heating resistance wire and a resistance wire, and the supporting mechanism comprises a powder roller supporting mechanism and a motor supporting mechanism. The utility model discloses an interior place inside thermal resistance wire of nested formula powder roller in realizes the intensification of powder roller, through the contact of shop's powder in-process powder roller with powder material, realize the preheating to powder material.
Description
Technical Field
The utility model belongs to the 3D printing apparatus field, concretely relates to selectivity is heatable powder roller mechanism for laser sintering.
Background
The selective laser sintering rapid prototyping technology (SLS technology for short) is a 3D printing technology based on the concept of discrete-stack forming. The SLS technology is produced in the 19 th century and the principle is that high-energy laser is used to selectively scan the surface layer of a powder material at a certain speed, so that the powder layer is rapidly melted and then solidified under the action of the laser energy to form a two-dimensional plane pattern, the two-dimensional plane pattern is connected with a powder spreading mechanism, and the powder spreading and scanning processes are repeated, so that the two-dimensional plane pattern is overlapped to form a three-dimensional pattern. One of the advantages of SLS technology is the wide variety of materials, and at present, the materials of selective laser sintering rapid prototyping technology mainly include powdered materials such as plastics, metals, ceramics, and polymer materials. In addition, the SLS technology has the advantages of high forming speed, high forming precision, no limit of a formed part structure in the forming process, short forming period, wide application range and the like, and is favorable for realizing small-batch and personalized production and processing of complex structural parts. The selective laser sintering technology has been applied to the fields of rapid prototyping, rapid die making, rapid casting, medical treatment, education, communication, shipbuilding and the like.
As society demands for quality and accuracy of processing in manufacturing industry, higher demands are made on SLS technology. In the product forming process, the quality of shop's powder effect directly influences the inside and outside structure of formed part and mechanical properties, and because the inside temperature of selectivity laser sintering machine is not even in the actual course of working, supplies powder case and the inside powder of shaping incasement portion to have the difference in temperature, so after shop's powder, need heat shaping case top layer powder, wait for the temperature to rise to the temperature range that sets up, just can carry out the laser scanning shaping to lead to process velocity slower, influenced the course of working.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a selectivity is heatable powder roller mechanism for laser sintering, solve because the shaping case has the difference in temperature with supplying the incasement powder layer of powder, spread the powder and need wait for the problem of intensification reprocessing after crossing.
The utility model discloses a following technical scheme realizes:
a heatable powder roller mechanism for selective laser sintering comprises a heating powder roller mechanism and a supporting mechanism, wherein the heating powder roller mechanism comprises an intermediate shaft, a locking nut, a powder roller sleeve, a heating assembly and an insulating assembly, the locking nut is installed at one end of the intermediate shaft, the heating assembly comprises a wire, an electric brush, a conductive copper ring, a heating resistance wire and a resistance wire, the conductive copper ring is fixed on the intermediate shaft, one end of the electric brush is connected with the wire, the other end of the electric brush is contacted with the conductive copper ring, the heating resistance wire is orderly wound on the intermediate shaft, the resistance wire is connected with the heating resistance wire and the conductive copper ring, the insulating assembly comprises an insulating ferrule, an inner insulating sleeve and an outer insulating sleeve, the insulating ferrules are axially installed at the middle part and two sides of the conductive copper ring, the inner insulating sleeve is arranged in the middle area of the heating resistance wire and the intermediate shaft, the outer insulating sleeve is, the supporting mechanism comprises a powder roller supporting mechanism and a motor supporting mechanism, the powder roller supporting mechanism comprises a powder roller main beam, a powder roller front bearing support, a powder roller dust guard plate and a powder roller rear bearing support, the powder roller main beam is connected with the powder roller front bearing support and the powder roller rear bearing support, a bearing mounting through hole is formed in the middle of the powder roller front bearing support and the powder roller rear bearing support, the motor supporting mechanism comprises a motor frame, a motor drag chain frame, a powder roller guide rail connecting frame and a motor sealing plate, the motor sealing plate is mounted below the motor frame, the powder roller guide rail connecting frame is mounted below the motor frame, and the motor connecting frame is fixed between the motor frame and the powder roller main beam.
2. Optionally, one end of the intermediate shaft is designed with threads.
3. Optionally, the lock nut is coupled to the intermediate shaft by a threaded pair.
4. Optionally, the brush is fixed inside the motor frame.
5. Optionally, the conductive copper ring and the intermediate shaft are in interference fit.
6. Optionally, the heating resistance wire is fixed on the inner insulating sleeve through heat-resistant glue.
7. Optionally, the inner insulating sleeve is connected with the intermediate shaft through heat-resistant glue.
8. Optionally, the powder roller sleeve is connected with the intermediate shaft through intermediate shaft cylinder plugs at two ends.
9. Optionally, the motor sealing plate is connected with the motor frame by screws.
10. Optionally, the motor drag chain frame and the motor frame are connected by welding.
11. Optionally, the connection mode of the main beam of the powder spreading roller and the dust-proof plate of the powder spreading roller is screw connection.
12. Optionally, a through hole is designed between the powder spreading roller rear bearing seat and the powder spreading roller front bearing seat.
13. Optionally, a threaded hole is designed on the inner side of the motor frame.
14. Optionally, the brush is provided with a threaded through hole.
15. Optionally, the fixing mode is insulation screw fixing.
16. Optionally, the motor sealing plate is designed with a threaded hole.
17. Optionally, a plurality of holes are formed in the middle of the dustproof plate of the powder spreading roller to reduce the self weight.
Compared with the prior art, the utility model, following advantage and effect have:
1. the utility model discloses heatable powder roller mechanism heats the powder roller from inside, with control system cooperation work, can make and keep the powder roller to keep invariable temperature for a long time.
2. The utility model discloses heatable powder roller mechanism can preheat the powder by the in-process that supplies the powder case tiling to the shaping case at the powder, and the mode of preheating is again compared after spreading into the shaping case with the powder, can reduce and preheat the required time.
3. The utility model discloses heatable powder roller mechanism, simple structure, convenient assembling can dismantle and the cost is lower.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a structural view of a heating roller of the present invention;
fig. 2 is the whole structure diagram of the powder spreading roller of the utility model.
Reference numbers and corresponding part names in the drawings:
1-insulating ferrule, 2-conductive copper ring, 3-intermediate shaft, 4-wire, 5-brush, 6-powder roller sleeve, 7-thermal resistance wire, 8-external insulating sleeve, 9-lock nut, 10-internal insulating sleeve, 11-resistance wire, 12-motor frame, 13-motor drag chain frame, 14-powder roller main beam, 15-powder roller front bearing support, 16-powder roller dust guard, 17-powder roller rear bearing support, 18-powder roller guide rail link, 19-motor seal plate
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
Examples
Please refer to fig. 1, which illustrates a heatable powder roller mechanism for selective laser sintering, comprising a self-heating powder roller mechanism and a supporting mechanism, wherein the self-heating powder roller mechanism comprises an intermediate shaft (3), a locking nut (9), a powder roller sleeve (6), a heating assembly and an insulating assembly, the locking nut (9) is installed at one end of the intermediate shaft (3) through a thread pair, the heating assembly comprises a wire (4), an electric brush (5), a conductive copper ring (2), a heating resistance wire (7) and a resistance wire (11), the conductive copper ring (2) is fixed on the intermediate shaft (3) through an interference fit mode, one end of the electric brush (5) is connected with the wire (4), the other end of the electric brush is contacted with the copper ring (2), the thermal resistance wire (7) is orderly wound on the intermediate shaft (3), the resistance wire (11) is used for connecting the resistance wire (7) with the copper ring (2), the insulating assembly comprises an, The powder spreading device comprises an outer insulating sleeve (8), insulating ferrules are arranged in the middle and on two sides of a copper ring (2) and fixed on a middle shaft (3), an inner insulating sleeve (10) is arranged between a heating resistance wire (7) and the middle shaft (3), the outer insulating sleeve (8) is arranged between a powder spreading roller sleeve (6) and the heating resistance wire (7), a supporting mechanism comprises a powder spreading roller supporting mechanism and a motor supporting mechanism, the powder spreading roller supporting mechanism comprises a powder spreading roller main beam (14), a powder spreading roller front bearing support (15), a powder spreading roller dust guard (16) and a powder spreading roller rear bearing support (17), the powder spreading roller main beam (14) is connected with the powder spreading roller front bearing support (15) and the powder spreading roller rear bearing support (17) in a bolt mode, the motor supporting mechanism comprises a motor frame (12), a motor drag chain frame (13), a powder spreading roller guide rail connecting frame (18) and a motor sealing plate (19), and the motor sealing plate (19) is arranged below the motor frame (12), through bolted connection, spread powder roller guide rail and link frame (18) and install in motor frame (12) below for install the slider, motor drag chain frame (13) are fixed in the middle of motor frame (12) and spread powder roller girder (14).
Furthermore, the locking nut (9) is connected with the intermediate shaft (3) through a thread pair.
Further, the electric brush (5) is fixed on the inner side of the motor frame (12) through an insulating screw.
Furthermore, the conductive copper ring (2) and the intermediate shaft (3) are in interference fit.
Furthermore, the thermal resistance wire (7) is fixed on the inner insulating sleeve (10) through heat-resistant glue.
Further, the inner insulating sleeve (10) is connected with the intermediate shaft (3) through heat-resistant glue.
Furthermore, the powder roller sleeve (6) is connected with the intermediate shaft (3) through intermediate shaft cylinder plugs at two ends.
Furthermore, the connection mode of the motor drag chain frame (13) and the motor frame (12) is welding.
Furthermore, a plurality of holes are arranged in the middle of the dustproof plate (16) of the powder spreading roller to reduce the self weight.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (18)
1. A heatable powder roller mechanism for selective laser sintering comprises a heating powder roller mechanism and a supporting mechanism, wherein the heating powder roller mechanism comprises an intermediate shaft, a locking nut, a powder roller sleeve, a heating assembly and an insulating assembly, the locking nut is installed at one end of the intermediate shaft, the heating assembly comprises a wire, an electric brush, a conductive copper ring, a heating resistance wire and a resistance wire, the conductive copper ring is fixed on the intermediate shaft, one end of the electric brush is connected with the wire, the other end of the electric brush is contacted with the conductive copper ring, the heating resistance wire is orderly wound on the intermediate shaft, the resistance wire is connected with the heating resistance wire and the conductive copper ring, the insulating assembly comprises an insulating ferrule, an inner insulating sleeve and an outer insulating sleeve, the insulating ferrules are axially installed at the middle part and two sides of the conductive copper ring, the inner insulating sleeve is arranged in the middle area of the heating resistance wire and the intermediate shaft, the outer insulating sleeve is, the supporting mechanism comprises a powder roller supporting mechanism and a motor supporting mechanism, the powder roller supporting mechanism comprises a powder roller main beam, a powder roller front bearing support, a powder roller dust guard plate and a powder roller rear bearing support, the powder roller main beam is connected with the powder roller front bearing support and the powder roller rear bearing support, a bearing mounting through hole is formed in the middle of the powder roller front bearing support and the powder roller rear bearing support, the motor supporting mechanism comprises a motor frame, a motor drag chain frame, a powder roller guide rail connecting frame and a motor sealing plate, the motor sealing plate is mounted below the motor frame, the powder roller guide rail connecting frame is mounted below the motor frame, and the motor connecting frame is fixed between the motor frame and the powder roller main beam.
2. The heatable powder roller mechanism for selective laser sintering of claim 1 wherein the intermediate shaft is threaded at one end.
3. The heatable powder roller mechanism for selective laser sintering of claim 1, wherein the locking nut is coupled to the intermediate shaft by a threaded pair.
4. A heatable powder roller mechanism for selective laser sintering as claimed in claim 1 wherein the brush is fixed inside the motor frame.
5. The heatable powder roller mechanism for selective laser sintering of claim 1 wherein the conductive copper ring is interference fit with the intermediate shaft.
6. The heatable powder roller mechanism for selective laser sintering of claim 1, wherein the heating resistance wire is fixed on the inner insulating sleeve by heat-resistant glue.
7. The heatable powder roller mechanism for selective laser sintering of claim 1, wherein the inner insulating sleeve and the intermediate shaft are connected by a heat resistant glue.
8. A heatable powder roller mechanism for selective laser sintering as claimed in claim 1 wherein the powder roller sleeve is connected to the intermediate shaft by a two-end intermediate shaft sleeve plug.
9. The heatable powder roller mechanism for selective laser sintering of claim 1, wherein the motor sealing plate is connected with the motor frame by a screw.
10. The heatable powder roller mechanism for selective laser sintering of claim 1, wherein the motor drag chain frame and the motor frame are connected by welding.
11. The heatable powder roller mechanism for selective laser sintering of claim 1, wherein the main beam of the powder spreading roller is connected with the dust-proof plate of the powder spreading roller by a screw.
12. The heatable powder roller mechanism for selective laser sintering of claim 1, wherein the powder roller rear bearing seat and the powder roller front bearing seat are provided with through holes in the middle.
13. The heatable powder roller mechanism for selective laser sintering of claim 4, wherein the motor frame is designed with a threaded hole on the inner side.
14. The heatable powder roller mechanism for selective laser sintering of claim 4, wherein the electric brush is designed with a threaded through hole.
15. The heatable powder roller mechanism for selective laser sintering of claim 4, wherein the fixing means is insulation screw fixing.
16. The heatable powder roller mechanism for selective laser sintering of claim 9, wherein the motor sealing plate is designed with a threaded hole.
17. A heatable powder roller mechanism for selective laser sintering as claimed in claim 11 wherein the dust guard of the powder roller is provided with a plurality of holes in the middle to reduce its own weight.
18. The heatable powder roller mechanism for selective laser sintering of claim 12 wherein the through hole is for mounting a bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921852624.0U CN210848327U (en) | 2019-10-31 | 2019-10-31 | Heatable powder roller mechanism for selective laser sintering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921852624.0U CN210848327U (en) | 2019-10-31 | 2019-10-31 | Heatable powder roller mechanism for selective laser sintering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210848327U true CN210848327U (en) | 2020-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921852624.0U Expired - Fee Related CN210848327U (en) | 2019-10-31 | 2019-10-31 | Heatable powder roller mechanism for selective laser sintering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210848327U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114393216A (en) * | 2022-01-14 | 2022-04-26 | 深圳市金石三维打印科技有限公司 | Powder device is spread to canned type for metal powder 3D printer |
-
2019
- 2019-10-31 CN CN201921852624.0U patent/CN210848327U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114393216A (en) * | 2022-01-14 | 2022-04-26 | 深圳市金石三维打印科技有限公司 | Powder device is spread to canned type for metal powder 3D printer |
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| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20200626 Termination date: 20211031 |