CN108790056A - The manifold structure of hot runner system - Google Patents
The manifold structure of hot runner system Download PDFInfo
- Publication number
- CN108790056A CN108790056A CN201710298810.3A CN201710298810A CN108790056A CN 108790056 A CN108790056 A CN 108790056A CN 201710298810 A CN201710298810 A CN 201710298810A CN 108790056 A CN108790056 A CN 108790056A
- Authority
- CN
- China
- Prior art keywords
- distribution plate
- flow distribution
- upper layer
- lower layer
- bushing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009826 distribution Methods 0.000 claims abstract description 90
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 239000004033 plastic Substances 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 7
- 238000007789 sealing Methods 0.000 description 7
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000003032 molecular docking Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000010008 shearing Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000004568 cement Substances 0.000 description 4
- 206010023126 Jaundice Diseases 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000151 deposition Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Present invention is disclosed a kind of manifold structures of hot runner system, including：Upper layer flow distribution plate, lower layer's flow distribution plate and connector, upper layer runner is equipped in the flow distribution plate of upper layer, lower layer's runner is equipped in lower layer's flow distribution plate, upper layer runner includes the upper layer flow channel entry point and upper layer runner exit for being located at upper layer flow distribution plate top and bottom, lower layer's runner includes the lower layer's flow channel entry point and lower layer's runner exit for being located at lower layer's flow distribution plate top and bottom, upper layer runner exit is docked and connected with lower layer flow channel entry point by connector, the part that connector connects upper layer flow distribution plate has first axle, the part that connector connects lower layer's flow distribution plate has second axis, first axle and second axis eccentric setting, lower layer's flow distribution plate is fixed in the template of mold, connector can surround first axle or second axis rotation to guide its rotation in upper layer flow distribution plate expanded by heating.The manifold structure of hot runner system of the present invention can eliminate the influence for thermally expanding and bringing.
Description
Technical field
The present invention relates to a kind of Hot runner Technology field, the manifold structures of especially a kind of hot runner system.
Background technology
Hot runner system shortens product molding cycle, saving plastic raw materials, reduction waste product due to having, and improves product matter
Measure, be conducive to production automation, expand injection molding process application range the advantages that, in the world today each industrially developed country and
Area obtains extremely wide application.
The hot runner system of the prior art includes mainly open hot runner system and needle valve type hot runner system, wherein needle
Valve type hot runner system has the advantages that save material, plastic surface aesthetic, and internal system quality is close, intensity is high.Hot-fluid
Road system generally comprises flow distribution plate, injection nozzle and hot mouth, has the input of the output end of injection nozzle and hot mouth in flow distribution plate
The hot flow path for holding conducting, when using double-layer spreader plate, the hot flow path of upper layer flow distribution plate and the hot flow path of lower layer's flow distribution plate it
Between by dock bushing connection, docking bushing sealed by sealing ring.
According to Fig. 1 and Fig. 2, in the hot runner system of the prior art, using single type bushing 3,1 He of upper layer flow distribution plate
Lower layer's flow distribution plate 2 compresses bushing 3, is connected upper layer and lower layer shunting plate runner by bushing 3,3 upper and lower surface of bushing difference
It is equipped with seal groove, sealing ring 4 is installed, prevents plastic cement from leaking.Because flow distribution plate is generally in the condition of high temperature, cause sealing ring 4
It is chronically under high temperature part and influence of the injection pressure to sealing ring 4 in hot runner system, influences the sealing energy of sealing ring 4
Power is even torn to crack in addition, this synthetic rubber of sealing ring is easy to happen expansion, contraction or hardening, cause be
System leak adhesive needs to shut down production, replaces spare and accessory parts and repairs；On the other hand, flow distribution plate causes to shunt because of the factor of thermal expansion
Plate misplaces with bushing is docked, and to form runner hole step, influences material stock at the flowing filling or even step of plastic cement, deposits
Long-term be heated of material causes jaundice to black, and influences product quality, so also totally unfavorable to colour changing process.
Invention content
The purpose of the present invention is to provide a kind of manifold structure of hot runner system, it can eliminate what thermal expansion was brought
It influences, no leak adhesive risk.
For achieving the above object, the present invention provides a kind of manifold structure of hot runner system, including：Upper layer shunts
Plate, lower layer's flow distribution plate and connector, the upper layer flow distribution plate is interior to be equipped with upper layer runner, and underflow is equipped in lower layer's flow distribution plate
Road, the upper layer runner include the upper layer flow channel entry point and upper layer runner for being located at upper layer flow distribution plate top and bottom
Outlet, lower layer's runner includes the lower layer's flow channel entry point and underflow for being located at lower layer's flow distribution plate top and bottom
Road exports, and the upper layer runner exit is docked and connected with lower layer's flow channel entry point by the connector, and the connector connects
The part for connecting layer flow distribution plate has first axle, the second axis of connector connection lower layer flow distribution plate, the first axle
Line and second axis eccentric setting, lower layer's flow distribution plate are fixed in the template of mold, and the connector can surround first
Axis or second axis rotation in the upper layer flow distribution plate expanded by heating to guide its rotation.
As being further improved for an embodiment of the present invention, the upper layer flow distribution plate can drive the bushing to enclose together
It is rotated around second axis or the upper layer flow distribution plate can be rotated relative to connector.
As being further improved for an embodiment of the present invention, the connector have be connected to the upper layer runner exit with
The connecting passage of lower layer's flow channel entry point, the connecting passage have first center concentric with the upper layer runner exit with
And concentric the second center with lower layer's flow channel entry point, first center and the second center respectively with the first axle and
Second axis corresponds to.
As being further improved for an embodiment of the present invention, the connecting piece structure is bushing, and the bushing includes tool
There are the first segment of first axle and the second segment with second axis, the first segment and second segment to pass through the first bushing respectively
Pressure cap and the second bushing pressure cap are connect with the upper layer flow distribution plate and lower layer's flow distribution plate.
As being further improved for an embodiment of the present invention, the first bushing pressure cap and the second bushing pressure cap pass through
The mode of threaded connection is connect with the upper layer flow distribution plate and lower layer's flow distribution plate respectively.
As being further improved for an embodiment of the present invention, the first segment and second segment of the bushing are served as a contrast with first respectively
Pressure cap and the second bushing pressure cap are covered by clearance fit, so that the bushing can be relative to the first bushing pressure cap or the second bushing
Pressure cap rotates.
As being further improved for an embodiment of the present invention, axis and the first axle of the first bushing pressure cap
It overlaps, the axis of the second bushing pressure cap is overlapped with the second axis.
As being further improved for an embodiment of the present invention, the first bushing pressure cap and the second bushing pressure cap include
Step end with first external diameter and with externally threaded main body, the main body of the first bushing pressure cap and the first flow distribution plate spiral shell
Line connects, and the main body of the second bushing pressure cap is threadedly coupled with second flow distribution plate, the step end and second of the first bushing pressure cap
The step end of bushing pressure cap is between the first flow distribution plate and the second flow distribution plate.
As being further improved for an embodiment of the present invention, the connecting passage includes having the first of the first center to open
Mouthful, the intermediate flow channel with the bicentric secondth opening and connection the first opening and the second opening, first opening
Internal diameter and the internal diameter of second opening are all higher than the internal diameter of the intermediate flow channel.
As being further improved for an embodiment of the present invention, the eccentric distance of the first axle and second axis is
1mm-5mm。
Compared with prior art, the beneficial effects of the present invention are：The present invention's is eccentric only by docking bushing or more
Special structure design, and " the free wxpansion function " thus brought, that is, when upper layer flow distribution plate expanded by heating can be guided by docking bushing
Rotation, to eliminate the influence for thermally expanding and bringing, no leak adhesive risk.Runner linking transition is smooth, no step, prevents from depositing glue jaundice
Black, be conducive to plastic cement and fill, is conducive to colour changing, docking bushing is small by shearing force, prolongs the service life.
Description of the drawings
Some specific embodiments that the invention will be described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.
Identical reference numeral denotes same or similar component or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.
In attached drawing：
Fig. 1 is the manifold structure schematic diagram of hot runner system in the prior art；
Fig. 2 is the sectional view along line A-A in Fig. 1；
Fig. 3 is the manifold structure of hot runner system in the preferred embodiment of the present invention；
Fig. 4 is the sectional view along line B-B in Fig. 3.
Specific implementation mode
Below with reference to specific implementation mode shown in the drawings, the present invention will be described in detail.But these embodiments are simultaneously
The present invention is not limited, structure that those skilled in the art are made according to these embodiments, method or functionally
Transformation is included within the scope of protection of the present invention.
Hot runner system provided by the invention is used for injection mold, and injection mold includes cover half part and dynamic model part, heat
Flow passage system is arranged in cover half part.Hot runner system includes flow distribution plate, injection nozzle and hot mouth, and having in flow distribution plate will note
The hot flow path of the output end of nozzle and the input terminal conducting of hot mouth.
With reference to shown in Fig. 3 to Fig. 4, in a currently preferred embodiment, the manifold structure of hot runner system includes：On
Layer flow distribution plate 10, lower layer's flow distribution plate 20 and connector 30, upper layer flow distribution plate 10 is interior to be equipped with upper layer runner, is set in lower layer's flow distribution plate 20
It includes the upper layer flow channel entry point for being located at upper layer flow distribution plate top and bottom to have lower layer's runner, upper layer runner（It is not shown）And
Upper layer runner exit 12, lower layer's runner include be located at lower layer's flow distribution plate top and bottom lower layer's flow channel entry point 21 and under
Layer runner exit（It is not shown）, upper layer runner exit 12 is docked and connected with lower layer flow channel entry point 21 by connector 3, connector 3
There is first axle X1, the part that connector 3 connects lower layer's flow distribution plate to have second axis X2 for the part for connecting upper layer flow distribution plate,
First axle X1 and second axis X2 eccentric settings, lower layer's flow distribution plate are fixed in the template of mold, and connector 30 can surround
First axle X1 or second axis X2 rotations in upper layer 10 expanded by heating of flow distribution plate to guide its rotation.Preferably, upper layer
Flow distribution plate 10 can surround second axis X2 rotations together with follower link 30.
Specifically, connector 30 has the connecting passage of connection upper layer runner exit 12 and lower layer's flow channel entry point 21, connection
Runner has the first center O1 concentric with the upper layer runner exit 12 and second center O2 concentric with lower layer flow channel entry point 21,
First center O1 and the second center O2 are corresponding with first axle X1 and second axis X2 respectively.In the present embodiment, connecting passage inclines
Tiltedly setting, inclined degree are determined by the eccentricity of first axle X1 and second axis X2.It is arranged to inclined connecting passage energy
Enough make to smoothly transit between upper layer runner and lower layer's runner, is conducive to the flowing of the injected plastics material of fluid.In addition, connecting passage packet
Include the first opening 331 of the first opening 331 with the first center O1, the second opening 332 with the second center O2 and connection
With second opening 332 intermediate flow channel 333, wherein first opening 331 internal diameter and second opening 332 internal diameter be all higher than centre
The internal diameter of runner 333.First opening 331 is configured to the Internal Spherical Surface roughly the same with the internal diameter of upper layer flow distribution plate runner exit 12 and opens
Mouthful, the second opening 332 is configured to the Internal Spherical Surface roughly the same with the internal diameter of lower layer flow distribution plate flow channel entry point 21 and is open, to make note
The flowing of moulding material is more smooth.
Further, connector 30 is configured to bushing, and bushing includes having the first segment 31 of first axle and with the
The second segment 32 of two axis, first segment 31 and second segment 32 respectively by the first bushing pressure cap 41 and the second bushing pressure cap 42 with it is upper
Layer flow distribution plate 10 and lower layer's flow distribution plate 20 connect.Two bushing pressure caps 41,42 are configured to sleeve-shaped, and the periphery of main body has
External screw thread, the first bushing pressure cap 41 is set in the outside of the first segment 31 of bushing, and the first bushing pressure cap 41 is connected by screw thread
The mode connect is connect with upper layer flow distribution plate 10；Second bushing pressure cap 42 is set in the outside of the second segment 32 of bushing, and second
The mode that bushing pressure cap 42 is connected through a screw thread is connect with lower layer flow distribution plate 20.In the present embodiment, 31 He of first segment of bushing
Second segment 32 is respectively with the first bushing pressure cap 41 and the second bushing pressure cap 42 by clearance fit, so that bushing can be relative to
One bushing pressure cap 41 or the rotation of the second bushing pressure cap 42, clearance fit here are preferably more accurate gap fiting mode.
In addition, the axis of the first bushing pressure cap 41 is overlapped with first axle X1, axis and the second axis X2 weights of the second bushing pressure cap 42
It closes, concentric cooperation is so that the design and manufacture of part are simpler.
With continued reference to Fig. 4, the first bushing pressure cap 41 and the second bushing pressure cap 42 include step end 411,421 and have
Externally threaded main body, wherein step end 411,421 outer diameter are more than the outer diameter of main body, and the main body of the first bushing pressure cap 41 is extend into
In first flow distribution plate 10, the main body of the second bushing pressure cap 42 is extend into the second flow distribution plate 20, the step of the first bushing pressure cap 41
End 411 and the step end 421 of the second bushing pressure cap 42 are between the first flow distribution plate 10 and the second flow distribution plate 20.In this way, convenient
The installation and adjustment of bushing pressure cap 41,42 and upper layer and lower layer flow distribution plate 10,20.
When installation, lower layer's flow distribution plate 20 is fixed by screws in the template of mold, because bushing can be relative to
First bushing pressure cap 41 or the rotation of the second bushing pressure cap 42, upper layer flow distribution plate 10 can drive the first bushing pressure cap 41 opposite together
Bushing rotates.Specifically, working as 10 expanded by heating of upper layer flow distribution plate, the shearing force to bushing is will produce, because bushing and first serve as a contrast
Covering, there is the degree of freedom of rotation, the degree of freedom upper layer of expanded by heating can be guided to shunt between pressure cap 41 or the second bushing pressure cap 42
Plate 10 is rotated around bushing and the second axis X2 of 20 cooperation of lower layer flow distribution plate, is expanded to bushing to offset flow distribution plate
Shearing.That is, upper layer flow distribution plate 10 is not proper rotation around the rotation of second axis X2, it is only intended to
The guiding of expansion direction when providing upper layer 10 temperature distortion of flow distribution plate generates shearing force to avoid to bushing.
Flow distribution plate 10 expanded by heating in upper layer, which is not naked eyes, can observe, in setting first axle X1 and second axis
It is also small distance when the eccentricity M of X2, preferably eccentricity M is 1mm to being 3mm between 5mm, in the present embodiment.
The Unique physical design eccentric by docking bushing or more, and " the free wxpansion function " thus brought, that is, dock
Bushing rotates when can guide upper layer flow distribution plate expanded by heating, to eliminate the influence for thermally expanding and bringing, no leak adhesive risk.Runner
It is smooth to be connected transition, no step prevents from depositing glue jaundice nigrescence, is conducive to plastic cement and fills, is conducive to colour changing, docking bushing is by shearing force
It is small, prolong the service life.
It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
As a whole, the technical solution in each embodiment may also be suitably combined to form those skilled in the art can for bright book
With the other embodiment of understanding.
The series of detailed descriptions listed above only for the present invention feasible embodiment specifically
Bright, they are all without departing from equivalent implementations made by technical spirit of the present invention not to limit the scope of the invention
Or change should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of manifold structure of hot runner system, including：Upper layer flow distribution plate, lower layer's flow distribution plate and connector, the upper layer
It is equipped with upper layer runner in flow distribution plate, lower layer's runner is equipped in lower layer's flow distribution plate, the upper layer runner includes being located at institute
The upper layer flow channel entry point and upper layer runner exit of upper layer flow distribution plate top and bottom are stated, lower layer's runner includes being located at
The lower layer's flow channel entry point and lower layer's runner exit of lower layer's flow distribution plate top and bottom, the upper layer runner exit with it is described
Lower layer's flow channel entry point is docked and connected by the connector, which is characterized in that the part of the connector connection upper layer flow distribution plate
With first axle, the part of connector connection lower layer flow distribution plate has second axis, the first axle and the second axis
Line eccentric setting, lower layer's flow distribution plate are fixed in the template of mold, and the connector can surround first axle or the
Two axis are rotated to guide its rotation in the upper layer flow distribution plate expanded by heating.
2. the manifold structure of hot runner system according to claim 1, which is characterized in that the upper layer flow distribution plate can
It drives the connector to surround the second axis together to rotate.
3. the manifold structure of hot runner system according to claim 1, which is characterized in that the connector has connection
The connecting passage of the upper layer runner exit and lower layer's flow channel entry point, the connecting passage has to be said with the upper stream
The first concentric center of mouth and second center concentric with lower layer's flow channel entry point, first center and the second center point
It is not corresponding with the first axle and second axis.
4. the manifold structure of hot runner system according to claim 3, which is characterized in that the connecting piece structure is lining
Set, the bushing includes the first segment with first axle and the second segment with second axis, the first segment and second
Section is connect by the first bushing pressure cap and the second bushing pressure cap with the upper layer flow distribution plate and lower layer's flow distribution plate respectively.
5. the manifold structure of hot runner system according to claim 4, which is characterized in that the first bushing pressure cap and
The mode that second bushing pressure cap is connected through a screw thread is connect with the upper layer flow distribution plate and lower layer's flow distribution plate respectively.
6. the manifold structure of hot runner system according to claim 4, which is characterized in that the first segment of the bushing and
Second segment is respectively with the first bushing pressure cap and the second bushing pressure cap by clearance fit, so that the bushing can be relative to first
Bushing pressure cap or the rotation of the second bushing pressure cap.
7. the manifold structure of hot runner system according to claim 4, which is characterized in that the first bushing pressure cap
Axis is overlapped with the first axle, and the axis of the second bushing pressure cap is overlapped with the second axis.
8. the manifold structure of hot runner system according to claim 4, which is characterized in that the first bushing pressure cap and
Second bushing pressure cap includes having the step end of first external diameter and with externally threaded main body, the main body of the first bushing pressure cap
It is threadedly coupled with first flow distribution plate, the main body of the second bushing pressure cap is threadedly coupled with second flow distribution plate, the first bushing
The step end of pressure cap and the step end of the second bushing pressure cap are between the first flow distribution plate and the second flow distribution plate.
9. the manifold structure of hot runner system according to claim 3, which is characterized in that the connecting passage includes tool
The first opening for having the first center, the intermediate flow being open with bicentric second opening and the first opening of connection and second
The internal diameter of road, the internal diameter of first opening and second opening is all higher than the internal diameter of the intermediate flow channel.
10. the manifold structure of hot runner system according to claim 1, which is characterized in that the first axle and
The eccentric distance of two axis is 1mm-5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710298810.3A CN108790056A (en) | 2017-04-27 | 2017-04-27 | The manifold structure of hot runner system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710298810.3A CN108790056A (en) | 2017-04-27 | 2017-04-27 | The manifold structure of hot runner system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108790056A true CN108790056A (en) | 2018-11-13 |
Family
ID=64053892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710298810.3A Pending CN108790056A (en) | 2017-04-27 | 2017-04-27 | The manifold structure of hot runner system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108790056A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009021794A1 (en) * | 2009-05-18 | 2010-11-25 | Klaus Dieter Kapp | Arrangement to compensate for the thermal expansion in hot runner manifold assemblies of melt control systems in injection molds |
| CN103687710A (en) * | 2011-06-09 | 2014-03-26 | 赫斯基注塑系统有限公司 | Wear-resistant assembly for contacting components of mold-tool system |
| CN204367317U (en) * | 2014-12-12 | 2015-06-03 | 广东伊之密高速包装系统有限公司 | The hot-runner device of automatic calibration |
| CN103974815B (en) * | 2011-12-05 | 2016-09-14 | 爱维康热流道系统有限及两合公司 | Passage of heat distributor for passage of heat system |
| CN206703432U (en) * | 2017-04-27 | 2017-12-05 | 柳道万和(苏州)热流道系统有限公司 | The manifold structure of TOP-TIP |
-
2017
- 2017-04-27 CN CN201710298810.3A patent/CN108790056A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009021794A1 (en) * | 2009-05-18 | 2010-11-25 | Klaus Dieter Kapp | Arrangement to compensate for the thermal expansion in hot runner manifold assemblies of melt control systems in injection molds |
| CN103687710A (en) * | 2011-06-09 | 2014-03-26 | 赫斯基注塑系统有限公司 | Wear-resistant assembly for contacting components of mold-tool system |
| CN103974815B (en) * | 2011-12-05 | 2016-09-14 | 爱维康热流道系统有限及两合公司 | Passage of heat distributor for passage of heat system |
| CN204367317U (en) * | 2014-12-12 | 2015-06-03 | 广东伊之密高速包装系统有限公司 | The hot-runner device of automatic calibration |
| CN206703432U (en) * | 2017-04-27 | 2017-12-05 | 柳道万和(苏州)热流道系统有限公司 | The manifold structure of TOP-TIP |
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Application publication date: 20181113 |
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| RJ01 | Rejection of invention patent application after publication |