CN203945696U - A kind of 3D printer is the structure to the sealing of processing storehouse only - Google Patents
A kind of 3D printer is the structure to the sealing of processing storehouse only Download PDFInfo
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- CN203945696U CN203945696U CN201420381332.4U CN201420381332U CN203945696U CN 203945696 U CN203945696 U CN 203945696U CN 201420381332 U CN201420381332 U CN 201420381332U CN 203945696 U CN203945696 U CN 203945696U
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- push rod
- gas
- orientation barrel
- tight silo
- sealing
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Abstract
The utility model belongs to 3D printer gas-tight silo and vacuumizes field, specifically the only structure to the sealing of processing storehouse of a kind of 3D printer.Described structure comprises gas-tight silo, orientation barrel, work type push rod, breather pipe and threeway gas-guiding structure, the wherein upper end of orientation barrel and the bottom of gas-tight silo is connected and be communicated with gas-tight silo, the lower end of orientation barrel is open type, work type push rod comprises push rod upper brace, push rod platform connector and push rod lower platform, push rod upper brace is arranged in orientation barrel and is slidably connected with the inwall of orientation barrel, one end of breather pipe is communicated with gas-tight silo, and the other end is communicated with orientation barrel by threeway gas-guiding structure.Driven by servomotor work type push rod moves up and down, by the Real-Time Monitoring of servomotor moment of torsion moment being judged to whether the active force bearing at compression place can continue to ensure sealing effectiveness.The utility model only need to carry out air-treatment to less processing storehouse environment, has saved very large time, consumptive material and manufacturing cost.
Description
Technical field
The utility model belongs to 3D printer gas-tight silo and vacuumizes field, and the specifically only structure to the sealing of processing storehouse of a kind of 3D printer can be applicable to laser three-dimensional rapid shaping, 3D prints the fields such as needed glove box, gas-tight silo.
Background technology
In 3D printing technique field, having a key technology is by machining area sealing, by vacuumizing, oxygen is reduced and is then filled with protection gas as argon gas, ensures that machining area oxygen content is low to moderate part to be processed and can not be oxidized.When use; 3D printer gas-tight silo inside is after the each condition of processing parts is ready to; gas-tight silo is closed; opening vavuum pump vacuumizes gas-tight silo; when vacuum is during to the minimum point limit, close vavuum pump, open argon gas valve; gas-tight silo inside is filled with to argon shield gas, in the time that air pressure inside is slightly larger than external pressure, stops.So far all vacuumize with pressure process complete.As shown in Figure 1 and Figure 2, integral sealing storehouse is mainly made up of processing storehouse, top A, lower motor storehouse B (or transmission storehouse) and conducting tracheae C.Bottom mounted motor drives elevating lever D to move up and down, and prints the lifting requirement of technique to realize 3D.Because elevating lever D place part causes processing storehouse A and motor bin B space is too large, therefore the method for domestic and foreign current is mainly to adopt the gas-tight silo of two-bin system as one, in the time vacuumizing and inject argon gas, environment in two storehouses is carried out in the lump.
When processing storehouse A is carried out to vacuum-pumping type, elevating lever D region will produce atmospheric pressure up and down, the surrounding of elevating lever D upper brace exists the parts such as sealing strip very possible generation under the effect of atmospheric pressure to damage or distortion, not only can leak gas but also can cause mechanism to damage.Therefore need to add wireway C in side, to reach upper and lower air pressure balance.Cause processing space between storehouse A and motor bin B based on transmission mechanism larger, and exist and move back and forth, be not easy to the reason that seals under larger pressure, at present overall structure is sealed to the method vacuumizing comparatively conventional.But due to common more complicated of mechanism such as motor-drivens in motor bin B, therefore its real space will be much larger than processing storehouse A.Actual use in processing storehouse A reaches technological requirement, but to all process integrated environment, in processing time and material cost, consume all very greatly, have the defect of the each side such as long, gas consumption waste of material of processing time and large Work piece sealing storehouse difficulty of processing.
Chinese patent CN102164696A discloses a kind of interconnected methods of structure of gas-tight silo, what this structure adopted is that two warehouses connect by air guide pipeline, air pressure in balance two storehouses, while vacuumizing, the pressure in two storehouses is realized balance, avoid occurring thereby reach the pressure differential that exists between processing storehouse and motor bin, by pressure-acting in the sealing position at guide post place, the risk that this structural approach makes guide post sealing place can therefore not leak air.But its major defect is, the spatial volume that need to do air ambient processing is larger, as previously mentioned, and the A space, processing storehouse using much larger than reality.In motor bin, contain in addition electrical equipment and automatically controlled product, these automatically controlled product needed are carried out electric power supply, control and communication etc. outward with equipment and are connected, and in the time processing related seals, have increased difficulty and gas leakage point failure hidden danger.
Utility model content
For the problems referred to above, the purpose of this utility model is to provide the only structure to the sealing of processing storehouse of a kind of 3D printer.Realize the only air-treatment for subenvironment in processing storehouse in the time vacuumizing, ensure to have avoided in unnecessary space the waste of the cost such as time and material producing when air ambient is processed in the time that equipment uses, the environment in little space all will be saved much than time and consumptive material etc. in the air-treatment of large space environmental field, and because not needing that motor is installed to storehouse environment seals, by a difficult problem of having avoided a large amount of various electrical cable in sealing joint processing.
To achieve these goals, the utility model is by the following technical solutions:
A kind of 3D printer is the structure to the sealing of processing storehouse only, comprise gas-tight silo, orientation barrel, work type push rod, breather pipe and threeway gas-guiding structure, wherein the upper end of orientation barrel and the bottom of gas-tight silo are connected, and be communicated with gas-tight silo, the lower end of described orientation barrel is open type, described work type push rod comprises push rod upper brace, push rod platform connector and push rod lower platform, described push rod upper brace is connected by push rod platform connector with push rod lower platform, described push rod upper brace is arranged in orientation barrel, and be slidably connected with the inwall of orientation barrel, described push rod lower platform is positioned at the outside, lower end of orientation barrel, one end of described breather pipe is communicated with gas-tight silo, the other end is communicated with orientation barrel by threeway gas-guiding structure, in the time that gas-tight silo vacuumizes, described work type push rod moves up, and the lower end of described push rod lower platform and orientation barrel is tightly connected.
Described push rod lower platform is greater than push rod upper brace, between described push rod lower platform and orientation barrel, is provided with push rod seal pad.
Described threeway gas-guiding structure comprises three-way pipe, gas-tight silo side valve door, logical atmospheric side valve and orientation barrel side valve door, wherein gas-tight silo side valve door is arranged on the pipeline between first port and the gas-tight silo of three-way pipe, described logical atmospheric side valve is arranged on second port that three-way pipe is communicated with atmosphere, and described orientation barrel side valve door is arranged on the pipeline between the 3rd port and the orientation barrel of three-way pipe.
Described gas-tight silo is arranged at the top of support, and the bottom of described work type push rod is connected with the servomotor that is arranged on frame bottom by motor transmission mechanism, and described servomotor is connected with electrical control cubicles by communication cable.Between described servomotor and motor transmission mechanism, be provided with torque sensor, described torque sensor is connected with electrical control cubicles.
The utlity model has following beneficial effect and advantage:
1. the real-time torque monitoring of the utility model can be known the sealing situation vacuumizing; adjust motor pressure by torque value and avoid gas leakage; simultaneously in the time gas-tight silo environment being vacuumized, is filled the processing such as protection gas; owing to effectively orientation barrel place being sealed; therefore do not need motor and transmission mechanism position to consider air pressure balance; reduce the real space of gas treatment, saved time and materials cost.
2. the utility model be because only need to seal gas-tight silo, so the installation that motor and transmission mechanism position can be open is conducive to daily maintenance and maintenance, and the impact that also can not be sealed of relevant all electric control cables.
3. also to compare large-sized like product cost a lot of in the time manufacturing for the undersized gas-tight silo of the utility model.Save manufacturing cost, will improve the very large market competitiveness.
Brief description of the drawings
Fig. 1 is the structural representation of conventional gas-tight silo;
Fig. 2 is the generalized section of Fig. 1;
Wherein: A is processing storehouse, and B is motor bin, and C is breather pipe, and D is elevating lever.
Fig. 3 is structural representation of the present utility model;
Structural representation when Fig. 4 is the utility model work;
Fig. 5 is the configuration schematic diagram of the utility model in rapid shaping is manufactured.
Wherein: 1 is gas-tight silo, 2 orientation barrels, 3 is work type push rod, 301 is push rod upper brace, and 302 is push rod platform connector, and 303 is push rod lower platform, 4 is wireway, and 5 is tee pipe fitting, and 6 is gas-tight silo side valve door, 7 is logical atmospheric side valve, and 8 is orientation barrel side valve door, and 9 is push rod seal pad, 10 is support, and 11 is motor transmission mechanism, and 12 is servomotor, 13 is communication cable, and 14 is electrical control cubicles.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model will be further described.
As Figure 1-4, the utility model comprises gas-tight silo 1, orientation barrel 2, work type push rod 3, breather pipe 4 and threeway gas-guiding structure, and wherein the upper end of orientation barrel 2 is connected with the bottom of gas-tight silo 1 and is communicated with gas-tight silo 1, and the lower end of described orientation barrel 2 is open type.Described work type push rod 3 comprises push rod upper brace 301, push rod platform connector 302 and push rod lower platform 303, described push rod upper brace 301 is connected by push rod platform connector 302 with push rod lower platform 303, and described push rod upper brace 301 is arranged in orientation barrel 2 and is slidably connected with the inwall of orientation barrel 2.Described push rod lower platform 303 is positioned at the outside, lower end of orientation barrel 2, and described push rod lower platform 303 is greater than push rod upper brace 301.One end of described breather pipe 4 is communicated with gas-tight silo 1, and the other end is communicated with orientation barrel 2 by threeway gas-guiding structure.In the time that gas-tight silo 1 vacuumizes, described work type push rod 3 moves up, and push rod lower platform 303 and the lower end of orientation barrel 2 are tightly connected, and between described push rod lower platform 303 and orientation barrel 2, is provided with push rod seal pad 9.
The material of described push rod seal pad 9 can be rubber or the soft metal material such as copper, aluminium.Push rod seal pad 9 can be installed in push rod lower platform 303, also can be installed on the bottom of orientation barrel 2.On two parts, the position of corresponding crush seal pad can be smooth flat, or processes corresponding groove or groove and join boss push rod seal pad 9 is installed, and groove can be in push rod lower platform 303, also can be in the plane of orientation barrel 2 bottom surroundings.
Described threeway gas-guiding structure comprises three-way pipe 5, gas-tight silo side valve door 6, logical atmospheric side valve 7 and orientation barrel side valve door 8, wherein gas-tight silo side valve door 6 is arranged on the pipeline between first port and the gas-tight silo 1 of three-way pipe 5, described logical atmospheric side valve 7 is arranged on second port that three-way pipe 5 is communicated with atmosphere, and described orientation barrel side valve door 8 is arranged on the pipeline between the 3rd port and the orientation barrel 2 of three-way pipe 5.In the present embodiment, gas-tight silo side valve door 6, logical atmospheric side valve 7 and orientation barrel side valve door 8 adopt pneumatic operated valve, also can adopt magnetic valve or hand-operated valve.Each valve, under different situations are entered, carries out different open and close and combines the atmospheric pressure of balance each several part, avoids atm difference to cause non-stress position damaged by atmospheric gas pressure.
As shown in Figure 5, in rapid shaping is manufactured, described gas-tight silo 1 is arranged at the top of support 10, and the bottom of described work type push rod 3 is connected with the servomotor 12 that is arranged on support 10 bottoms by motor transmission mechanism 11, and described servomotor 12 is connected with electrical control cubicles 14 by communication cable 13.Between described servomotor 12 and motor transmission mechanism 11, be provided with torque sensor, described torque sensor is connected with electrical control cubicles 14.Described electrical control cubicles 14 is touch screen electrical control cubicles, realizes the lifting monitoring to work type push rod 3 by the operation on touch-screen.
The described 3D printer only control method of the structure to the sealing of processing storehouse is: described servomotor 12 drives work type push rod 3 to move up, until the lower end press seal of push rod lower platform 303 and orientation barrel 2, make gas-tight silo 1, orientation barrel 2 and breather pipe 4 form a sealing entirety, vacuumize or all realize air pressure balance by threeway gas-guiding structure when orientation barrel 2 air guide at gas-tight silo 1.
When described gas-tight silo 1 vacuumizes, close atmospheric side valve 7, opening encapsulation storehouse side valve door 6 and orientation barrel side valve door 8, make the air pressure balance in gas-tight silo 1 and orientation barrel 2; After vacuumizing in described gas-tight silo 1, close gas-tight silo side valve door 6, open logical atmospheric side valve 7 and orientation barrel side valve door 8, make air pressure balance in orientation barrel 2 and atmosphere.Described servomotor 12 drives work type push rod 3 to move down, and push rod lower platform 303 is separated with the lower end of orientation barrel 2, and described push rod upper brace 301 moves down, the gas in orientation barrel 2 is derived.Monitor signal is fed back to electrical control cubicles 14 by described torque sensor, to judge the lower end press seal situation of push rod lower platform 303 and orientation barrel 2.
Operation principle of the present utility model is:
According to technological requirement, first gas-tight silo 1 is vacuumized, by Pressure Drop to low as far as possible, be then filled with protection inert gas until pressure slightly higher than atmospheric pressure, after oxygen is up to standard, maintenance sealing and inner slightly slight positive pressure state are processed.As shown in Figure 3, this equipment is in the time vacuumizing, first work type push rod 3 is risen to highest point, make push rod upper brace 301 a little more than processing platform, but push rod upper brace 301 surroundings still and between orientation barrel 2, have the sealing of anti-dust, clamps push rod seal pad 9 and strengthen sealing between push rod lower platform 303 and orientation barrel 2.Gas-tight silo side valve door 6 and orientation barrel side valve door 8 are opened, are closed atmospheric side valve 7, like this gas-tight silo 1 will with orientation barrel 2 UNICOMs, ensure the air pressure balance of inside, two storehouses.In orientation barrel 2, gas can be derived, and in the time that gas-tight silo 1 internal gas pressure changes, poor of the active force of atmospheric pressure acts in push rod lower platform 303, can not bring disaster to the sealing of push rod upper brace 301 surroundings.After sealing and air guide work complete, the work that can first vacuumize.The torque condition of the servomotor 12 reflecting in real time by the display of electrical control cubicles 14 judges the measuring phase of push rod seal pad 9.The torque condition that described servomotor 12 finally reflects by motor transmission mechanism 11: keep present situation will be subject to as workpiece gravity for servomotor 12, frictional resistance, work type push rod 3 stops elastic force etc. while clamping push rod seal pad 9 with orientation barrel 2, resultant force is on the occasion of L+ by tentative downward direction moment of torsion, pressure difference due to the upper and lower surface of work type push rod 3 while vacuumizing upwards pressure generation, in the time of resultant force upward direction, tentative torque value is L-, by real-time monitored L ± situation of change adjusts servomotor 12 states in time, avoid servomotor 12 to transship and thrusts and leaking gas are lost at push rod seal pad 9 places, thereby reach effect auxiliary and Real-Time Monitoring sealing.After vacuumizing end, be filled with protection inert gas until gas-tight silo 1 internal pressure is a bit larger tham atmospheric pressure; first close gas-tight silo side valve door 6; then open atmospheric side valve 7; allow orientation barrel 2 internal gas pressures and atmospheric pressure be consistent; while preventing that push rod seal pad 9 is in push rod lower platform 303 and leaves orientation barrel 2, because the gas load that has draught head damages.Because the atmospheric pressure in gas-tight silo 1 is only less times greater than atmospheric pressure; therefore can ignore for the impact of the normal operation of servomotor 12; the sealing effectiveness of push rod upper brace 301 surrounding sealing rings also can not be stressed and leak gas simultaneously; and because inside exists the malleation of protecting inert gas; air will can not enter, and still can ensure the processing request of technique.
The torque monitoring that the utility model can carry by servomotor, utilize its driver by signal feedback to PLC, on touch-screen, show again, also can be by the signal feedback of driver to industrial computer, on other display equipment, show, also can come with torque sensor that monitor signal feeds back to PLC or industrial computer carries out calculation process.By the Real-Time Monitoring of servomotor moment of torsion moment being judged to whether the active force bearing at compression place can continue to ensure sealing effectiveness.In the time that work type push rod 3 and orientation barrel 2 push, to record resistive torque situation, in the time vacuumizing, because existing the poor moment of torsion of atmospheric pressure, work type push rod 3 both sides, bottom surface will change, adjust the operation of servomotor 12 by real-time monitoring moment of torsion, while having ensured to vacuumize, the sealing place moment is kept to impaction state, servomotor overload or sealing strip place compress strength and cause not leakage alarm.
Claims (5)
1. the only structure to the sealing of processing storehouse of a 3D printer, it is characterized in that: comprise gas-tight silo (1), orientation barrel (2), work type push rod (3), breather pipe (4) and threeway gas-guiding structure, wherein the upper end of orientation barrel (2) is connected with the bottom of gas-tight silo (1), and be communicated with gas-tight silo (1), the lower end of described orientation barrel (2) is open type, described work type push rod (3) comprises push rod upper brace (301), push rod platform connector (302) and push rod lower platform (303), described push rod upper brace (301) is connected by push rod platform connector (302) with push rod lower platform (303), described push rod upper brace (301) is arranged in orientation barrel (2), and be slidably connected with the inwall of orientation barrel (2), described push rod lower platform (303) is positioned at the outside, lower end of orientation barrel (2), one end of described breather pipe (4) is communicated with gas-tight silo (1), the other end is communicated with orientation barrel (2) by threeway gas-guiding structure, in the time that gas-tight silo (1) vacuumizes, described work type push rod (3) moves up, and described push rod lower platform (303) and the lower end of orientation barrel (2) are tightly connected.
2. by the only structure to the sealing of processing storehouse of 3D printer claimed in claim 1, it is characterized in that: described push rod lower platform (303) is greater than push rod upper brace (301), between described push rod lower platform (303) and orientation barrel (2), be provided with push rod seal pad (9).
3. by the only structure to the sealing of processing storehouse of 3D printer claimed in claim 1, it is characterized in that: described threeway gas-guiding structure comprises three-way pipe (5), gas-tight silo side valve door (6), logical atmospheric side valve (7) and orientation barrel side valve door (8), wherein gas-tight silo side valve door (6) is arranged on the pipeline between first port and the gas-tight silo (1) of three-way pipe (5), described logical atmospheric side valve (7) is arranged on second port that three-way pipe (5) is communicated with atmosphere, described orientation barrel side valve door (8) is arranged on the pipeline between the 3rd port and the orientation barrel (2) of three-way pipe (5).
4. by the only structure to the sealing of processing storehouse of the 3D printer described in claim 1-3 any one, it is characterized in that: described gas-tight silo (1) is arranged at the top of support (10), the bottom of described work type push rod (3) is connected with the servomotor (12) that is arranged on support (10) bottom by motor transmission mechanism (11), and described servomotor (12) is connected with electrical control cubicles (14) by communication cable (13).
5. by the only structure to the sealing of processing storehouse of 3D printer claimed in claim 4, it is characterized in that: between described servomotor (12) and motor transmission mechanism (11), be provided with torque sensor, described torque sensor is connected with electrical control cubicles (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420381332.4U CN203945696U (en) | 2014-07-10 | 2014-07-10 | A kind of 3D printer is the structure to the sealing of processing storehouse only |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420381332.4U CN203945696U (en) | 2014-07-10 | 2014-07-10 | A kind of 3D printer is the structure to the sealing of processing storehouse only |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203945696U true CN203945696U (en) | 2014-11-19 |
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ID=51887754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420381332.4U Expired - Fee Related CN203945696U (en) | 2014-07-10 | 2014-07-10 | A kind of 3D printer is the structure to the sealing of processing storehouse only |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203945696U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113044578A (en) * | 2019-12-27 | 2021-06-29 | 沈阳新松机器人自动化股份有限公司 | Sealed powder feeding mechanism |
-
2014
- 2014-07-10 CN CN201420381332.4U patent/CN203945696U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113044578A (en) * | 2019-12-27 | 2021-06-29 | 沈阳新松机器人自动化股份有限公司 | Sealed powder feeding mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 Termination date: 20200710 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |