CN208860824U - A kind of gas monitoring system of 3D printing equipment - Google Patents
A kind of gas monitoring system of 3D printing equipment Download PDFInfo
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- CN208860824U CN208860824U CN201821225135.8U CN201821225135U CN208860824U CN 208860824 U CN208860824 U CN 208860824U CN 201821225135 U CN201821225135 U CN 201821225135U CN 208860824 U CN208860824 U CN 208860824U
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Abstract
A kind of gas monitoring system of 3D printing equipment disclosed by the utility model, including air inlet pipe IN, air inlet pipe IN connection inlet manifold, the output end of inlet manifold connects multichannel tracheae, solenoid valve is mounted on each multichannel tracheae inlet end, multichannel tracheae inlet end with connect work gas circuit, filter device is installed in work gas circuit, each filter device is all connected to exhaust manifold, exhaust manifold connects exhaust main OUT-1, solenoid valve is installed on exhaust main OUT-1, is provided with exhaust filter core on exhaust main OUT-1；Multichannel tracheae inlet end is also connected with cleaning gas circuit, and cleaning gas circuit is connect with exhaust manifold.The monitoring system of the utility model is equipped with high and low smart oxygen and monitors simultaneously, has perfect oxygen content monitor control system；The gas of working chamber's discharge guarantees that solenoid valve is not easy to plug by effectively filtering, extends the part of appliance service life.
Description
Technical field
The utility model belongs to manufacturing equipment technical field, is related to a kind of gas monitoring system of 3D printing equipment.
Background technique
3D printer is also known as three-dimensional printer, is a kind of to be adopted based on digital model file using rapid prototyping technology
With metal or nonmetallic materials, (such as ABS, PC, PA, PLA plastics, rubber, stainless steel, titanium alloy, ceramics, are mixed photosensitive resin
The materials such as solidifying soil) made of powder to be formed, will the successively fusing/thawing of tiled powder to be formed, then solidify and be piled into
Type constructs the printing device of three-dimensional entity.3D printing equipment burns powder by laser by hierarchy slicing technique
Knot.Wherein, metal 3D printing due to raw material be metal powder, have high requirement, to the oxygen content of part forming in order to keep away
Exempt from powder to aoxidize in forming process, equipment is needed Control for Oxygen Content in an extremely low range, if the oxygen in forming bin
Gas content is excessively high, and the part of 3D printer causes oxidation serious under high-temperature operation, and it is existing to occur nodularization, black smoke etc. in print procedure
As resulting even in print procedure and exploding, cause security risk.
In general, cleaning using inert gases such as argon gas, nitrogen to working chamber, guarantee that part forming is in extremely low oxygen
It is carried out in content environment, it is ensured that the higher forming quality of part.So effective atmosphere monitor control system just seems especially heavy
It wants.
Utility model content
The purpose of the utility model is to provide a kind of gas monitoring systems of 3D printing equipment, and solving the prior art does not have
Perfect oxygen content monitor control system leads to that safety problem occurs, and the gas of working chamber's discharge by effectively filtering, does not hold
The problem of easily blocking solenoid valve.
The utility model is the technical scheme adopted is that a kind of gas monitoring system of 3D printing equipment, including air inlet pipe
One end of IN, air inlet pipe IN are gas source air inlet, and the other end of air inlet pipe IN connects inlet manifold, and the output end of inlet manifold connects
Multichannel tracheae is connect, solenoid valve is mounted on each multichannel tracheae inlet end, multichannel tracheae inlet end connects work gas circuit, work
Gas circuit includes the working chamber for the 3D printing equipment connecting with multichannel tracheae inlet end, is equipped with low precision in working chamber's inner tip
Oxygen analyzer and high-precision oxygen analyzer, working chamber inside were mounted on the pipeline output end that multichannel tracheae is connected respectively
Device is filtered, each filter device is all connected with gas exhaust piping, and gas exhaust piping is all connected to exhaust manifold, and exhaust manifold connection exhaust is total
Solenoid valve, exhaust main OUT-1 connection exhaust outlet, exhaust main OUT-1 and row are installed on pipe OUT-1, exhaust main OUT-1
Exhaust filter core is provided between port；Solenoid valve connects host computer, and low precision oxygen analyzer is connected with high-precision oxygen analyzer
Position machine.
Multichannel tracheae inlet end is also connected with cleaning gas circuit.
Other features of the utility model also reside in,
Cleaning gas circuit include the 3D printing equipment being connect with multichannel tracheae inlet end other component, 3D printing equipment its
The pipeline output end that his components interior is connected with multichannel tracheae is all connected with exhaust manifold, inside the other component of 3D printing equipment
Check valve is mounted on the pipeline output end being connected with multichannel tracheae.
The utility model has the beneficial effects that a kind of gas monitoring system of 3D printing equipment, solves the prior art and does not have
There is perfect oxygen content monitor control system to lead to that safety problem occurs, the gas of working chamber's discharge is not filtered by effective,
The problem of being easy blocking solenoid valve.Gas circuit direction can be effectively controlled, it is same that the monitoring system of the utility model is equipped with high and low smart oxygen
When monitor, PLC control cleaning and work tow channel gas cooperating, row at perfect oxygen content monitor control system；Working chamber row
Gas out guarantees that solenoid valve is not easy to plug by effectively filtering, extends the part of appliance service life；Gas circuit direction can be effectively controlled,
Gas-way inverse blow is avoided, guarantees equipment working performance.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of the gas monitoring system of 3D printing equipment of the utility model；
Fig. 2 is a kind of flow chart of work methods of the gas monitoring system of 3D printing equipment of the utility model.
In figure, 1. gas source air inlets, 2. inlet manifold, 3. working chambers, the other component of 4.3D printing device, 5. exhaust discriminations
Pipe, 6. exhaust filter cores, 7. check valves, 8. filter devices, 9. solenoid valves, 10. host computers, 11. low precision oxygen analyzers, 12. is high
Precision oxygen analyzer.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
The gas monitoring system of a kind of 3D printing equipment of the utility model, as shown in Figure 1, including air inlet pipe IN, air inlet
One end of pipe IN is gas source air inlet 1, and the other end of air inlet pipe IN connects inlet manifold 2, and the output end connection of inlet manifold 2 is more
Road tracheae, solenoid valve 9 is mounted on each multichannel tracheae inlet end, and multichannel tracheae inlet end connects work gas circuit, work gas
Road includes the working chamber 3 that 3D printing equipment is connect with multichannel tracheae inlet end, and low precision oxygen is equipped in 3 inner tip of working chamber
Analyzer 11 and high-precision oxygen analyzer 12,3 inside of working chamber are respectively mounted with the pipeline output end that multichannel tracheae is connected respectively
There is filter device 8, each filter device 8 is all connected with gas exhaust piping, and gas exhaust piping is all connected to exhaust manifold 5, and exhaust manifold 5 connects
Exhaust main OUT-1 is met, solenoid valve 9, exhaust main OUT-1 connection exhaust outlet, exhaust main are installed on exhaust main OUT-1
Exhaust filter core 6 is provided between OUT-1 and exhaust outlet；
Multichannel tracheae inlet end is also connected with cleaning gas circuit.
Cleaning gas circuit includes the other component 4 for the 3D printing equipment connecting with multichannel tracheae inlet end, 3D printing equipment
The pipeline output end that 4 inside of other component is connected with multichannel tracheae is all connected with exhaust manifold 5, the other component of 3D printing equipment
Check valve 7 is mounted on the pipeline output end that 4 inside are connected with multichannel tracheae.
Solenoid valve 9 connects host computer 10, and low precision oxygen analyzer 11 and high-precision oxygen analyzer 12 connect host computer 10.
A kind of gas monitoring system of 3D printing equipment of the utility model, working principle are as follows: gas source air inlet 1 can be with
It is the input of any gas source, such as the common argon gas of 3D printing equipment, nitrogen, compressed air, in gas washing or the course of work, gas meeting
It is dispersed into multipath gas by inlet manifold 2, respectively enters working chamber 3 or other equipment component 4, wherein other equipment component 4
It may be cascade with working chamber 3, it is also possible to which parallel form, diagram only illustrate the circuit unit shape with working chamber's parallel connection
Formula, but it is not limited only to the form；After other equipment component 4 of the gas by 3D printing equipment and working chamber 3, finally it is pooled to
Exhaust manifold 5, then be successively discharged by exhaust main OUT-1 and exhaust filter core 6, scrubbing loop is completed, guarantees oxygen inside equipment
Content meets job requirement.In figure, IN-m-n represents the n-th tunnel branch of m sections of air inlets, and OUT-m-n represents the of m sections of exhausts
The road n branch.Low precision oxygen analyzer 11 and high-precision oxygen analyzer 12 are installed in working chamber top simultaneously, can real-time detection working chamber
Oxygen content.Host computer 10 controls the solenoid valve 9 on each pipeline by PLC and guarantees cleaning and work gas circuit cooperation, is formed and is stablized
Effective work climate.
Before real work starts, all devices circulation member will do it great purge, the related air inlet of equipment cleaning connection
Pipe IN and exhaust main OUT are opened, and guarantee that oxygen content reaches required value.Once oxygen content is met the requirements, equipment is started to work,
PLC control system closes related cleaning tracheae by solenoid valve, only carries out work air inlet to working chamber and work is vented, when oxygen contains
Amount opens cleaning gas circuit when being higher than certain value again, and two gas circuit cooperatings not only can rationally consume gas source, also ensure that zero
Oxygen content is in a stable range in part forming process
The working method of the gas monitoring system of a kind of 3D printing equipment of the utility model, as shown in Fig. 2, concrete operations
Process includes the following steps:
Step 1. operates each component in the initialization detection system of host computer 10, and host computer 10 reads low precision oxygen
Then the oxygen content data that analyzer 11 detects judge whether the oxygen content data of detection are Monitoring lower-cut, if it is not, then record
Oxygen content data execute step 2；If it is, reading the oxygen content data that high-precision oxygen analyzer 12 detects, and records oxygen and contain
Data are measured, step 2 is then executed；
Whether the oxygen content that step 2. judgment step 1 records is within the scope of A~B, if just held according to Primordial Qi road
Row printing, until printing terminates；If not, executing step 3；
Step 3. judges whether oxygen content is less than A, if so, executing work gas circuit, that is, host computer 10 controls solenoid valve 9
The multichannel tracheae connecting with the other component 4 of 3D printing equipment is closed, the multichannel tracheae connecting with working chamber 3 is opened, to forming
Room 3 carries out work air inlet and work exhaust, executes printing, until printing terminates；If it is not, then executing step 4；
Step 4. judges whether oxygen content is greater than B, if so, executing cleaning gas circuit, that is, host computer 10 controls solenoid valve 9
The multichannel tracheae connecting with the other component 4 of 3D printing equipment is opened, and opens the multichannel tracheae connecting with working chamber 3, two
Gas circuit works at the same time, and then returns and successively executes step 1, step 2, step 3 and step 4.
The value of oxygen content A and B are depending on equipment precision required by printed material and client.
As shown in Figure 1, all pipelines of IN-1 and OUT-1 are opened when cleaning, when work, except working chamber 3, in outer dotted line frame
The other component 4 of 3D printing equipment stop air inlet, there is always work air inlet in working chamber 3, that is, causes at exhaust manifold B and A
Place is there are pressure difference, and B > A.Due to that can generate a large amount of dust during part forming, dust is since pressure difference is via exhaust manifold 5
It into the other component of 3D printing equipment, uses for a long time and expensive damage is caused to these component capabilities, influence equipment entirety matter
Amount.In order to avoid similar situation generation, also especially increase by two kinds of components in this system, firstly, every in working chamber 3 be vented all the way
Increase filter device 81,82 ... ... on tracheae, 8n guarantees that the gas of the exclusion of working chamber 3 as far as possible without excessive dust, guarantees gas circuit
Solenoid will not block, and influence performance.In addition, not working the gas circuit terminal of air inlet, manifold front end in only cleaning air inlet
Increase check valve 7, check valve 7 is only in cleaning exhaust Shi Caihui gas circuit connection, it is ensured that even if there are pressure differences for exhaust manifold 5, also not
The impurity such as dust can be blown into equipment other component, guarantee that equipment various functions are well run.
Claims (2)
1. a kind of gas monitoring system of 3D printing equipment, which is characterized in that including air inlet pipe IN, one end of the air inlet pipe IN
The other end for gas source air inlet (1), the air inlet pipe IN connects inlet manifold (2), and the output end of the inlet manifold (2) connects
Multichannel tracheae is connect, is mounted on solenoid valve (9) on each multichannel tracheae inlet end, the multichannel tracheae inlet end connects work
Make gas circuit, the work gas circuit includes the working chamber (3) for the 3D printing equipment connecting with the multichannel tracheae inlet end, it is described at
Low precision oxygen analyzer (11) and high-precision oxygen analyzer (12) are installed, the working chamber (3) is interior in shape room (3) inner tip
Portion is mounted on filter device (8) with the pipeline output end that the multichannel tracheae is connected respectively, each filter device (8)
It is all connected with gas exhaust piping, the gas exhaust piping is all connected to exhaust manifold (5), and the exhaust manifold (5) connects exhaust main
It is equipped with solenoid valve (9) on OUT-1, the exhaust main OUT-1, the exhaust main OUT-1 connection exhaust outlet, the exhaust
Exhaust filter core (6) are provided between general pipeline OUT-1 and exhaust outlet；The solenoid valve (9) connects host computer (10), the low precision
Oxygen analyzer (11) and high-precision oxygen analyzer (12) connection host computer (10)；
The multichannel tracheae inlet end is also connected with cleaning gas circuit.
2. a kind of gas monitoring system of 3D printing equipment as described in claim 1, which is characterized in that the cleaning gas circuit packet
Include the other component (4) for the 3D printing equipment connecting with the multichannel tracheae inlet end, the other component of the 3D printing equipment
(4) the internal pipeline output end being connected with the multichannel tracheae is all connected with the exhaust manifold (5), the 3D printing equipment
Check valve (7) are mounted on the pipeline output end being connected inside other component (4) with the multichannel tracheae.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821225135.8U CN208860824U (en) | 2018-07-31 | 2018-07-31 | A kind of gas monitoring system of 3D printing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821225135.8U CN208860824U (en) | 2018-07-31 | 2018-07-31 | A kind of gas monitoring system of 3D printing equipment |
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| CN208860824U true CN208860824U (en) | 2019-05-14 |
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| CN201821225135.8U Active CN208860824U (en) | 2018-07-31 | 2018-07-31 | A kind of gas monitoring system of 3D printing equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113125672A (en) * | 2021-04-20 | 2021-07-16 | 吉林大学 | 3D printing metal performance test equipment and performance test method under different oxygen contents |
-
2018
- 2018-07-31 CN CN201821225135.8U patent/CN208860824U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113125672A (en) * | 2021-04-20 | 2021-07-16 | 吉林大学 | 3D printing metal performance test equipment and performance test method under different oxygen contents |
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